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32results about How to "Improve compatibility between phases" patented technology
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Preparation method of high-impact polyacrylate grafting vinyl chloride emulsion copolymer resin
The invention relates to the technical field of vinyl chloride resin, in particular to a preparation method of high-impact polyacrylate grafting vinyl chloride emulsion copolymer resin. A single emulsifier and a single initiator are adopted by the original synthesis process, and tests proof that the single emulsifier can enable polymer latex not to be stable, and therefore, a stable polymerization product can not be obtained; the single initiator enables a polymerization system not to be stable, and reaction is difficult to control; freezing demulsification, filtering, washing, drying and the like are adopted as treatment processes of a vinyl chloride grafting copolymer emulsion to form a thick and big aggregated particle structure, and the product performance is low; moreover, much wastewater and many waste residues are generated in the process. In the invention, the stability of the latex is ensured by adopting a compound emulsifier and a compound initiator, which ensures that the latex has better average particle diameter, the polymerization system is stable and the reaction is easy to control; centrifugal spray drying is adopted to treat emulsion resin, and thereby, a good resin product with even particle size distribution and good processing performance can be obtained; and the wastewater and the waste residues are not generated, the process flow is short and the energy can be saved and the consumption can be lowered.
Owner:河北盛华化工有限公司
Dual-driving coupling operated multichannel micro-fluidic chip device used for cholera diagnosis
InactiveCN107121545AGood compatibilityLow flow resistanceMaterial analysisAgainst vector-borne diseasesUltrasonic sensorShortest distance
The invention relates to a dual-driving coupling operated multichannel micro-fluidic chip device used for cholera diagnosis and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for cholera diagnosis. But there exist a series of problems. The scheme aims to solve the series of problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure are intercoupling with each other and operate collaboratively. Then, the problems are solved.
Owner:葛宇杰
Preparation method of high-impact polyacrylate grafting vinyl chloride emulsion copolymer resin
Owner:河北盛华化工有限公司
Multichannel and dual-driving coupling operated micro-fluidic chip device used for cholera diagnosis
PendingCN107115898AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial electrochemical variablesUltrasonic sensorShortest distance
The invention relates to a multichannel and dual-driving coupling operated micro-fluidic chip device used for cholera diagnosis and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for diagnosis of cholera. But there exist a series of problems. The scheme aims to solve the series of problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure operate collaboratively. Thus, the series of problems are solved.
Owner:葛宇杰
Dual-driving coupled micro-fluidic chip device for simultaneous detection of various subtype swine influenzas
InactiveCN107115904AGood compatibilityLow flow resistanceMaterial analysis by electric/magnetic meansLaboratory glasswaresUltrasonic sensorShortest distance
The invention relates to a dual-driving coupled micro-fluidic chip device for simultaneous detection of various subtype swine influenzas and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for diagnosis of subtype swine influenzas. In fact, there exist a series of problems. The scheme aims to solve the problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure support each other, are intercoupling with each other, adjust and adapt mutually, and operate collaboratively.
Owner:葛宇杰
Dual-driving coupling operated micro-fluidic chip device used for syphilis diagnosis
InactiveCN107115902AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisSyphilisUltrasonic sensor
The invention relates to a dual-driving coupling operated micro-fluidic chip device used for syphilis diagnosis and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for syphilis diagnosis. But there exist some problems. The scheme aims to solve the problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure support each other, are intercoupling with each other, adjust and adapt mutually, and operate collaboratively.
Owner:葛宇杰
Micro-fluidic chip device with dual driving coupling mode and used for diagnosis of AIDS
PendingCN107115899AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisUltrasonic sensorShortest distance
The invention relates to a micro-fluidic chip device with a dual driving coupling mode and used for diagnosis of AIDS and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for diagnosis of AIDS. But there exist a series of problems. The scheme aims to solve the series of problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure support each other and operate collaboratively. Thus, the problems are solved.
Owner:葛宇杰
Acquired immune deficiency syndrome diagnosis micro-fluidic chip device adopting dual drive coupling mode
InactiveCN106153903AGood compatibilityReduced intensity of ultrasonic emissionBiological material analysisUltrasonic sensorHigh absorption
The invention relates to an acquired immune deficiency syndrome diagnosis micro-fluidic chip device adopting a dual drive coupling mode, and belongs to the field of analytical testing. When cheap polydimethylsiloxane, namely, PDMS easy to process is used for manufacturing a substrate of a micro-fluidic chip for acquired immune deficiency syndrome diagnosis, a series of problems exist. The scheme aims at the series of problems. According to the scheme, the PDMS with an original ecological surface is selected in the substrate, a micro ultrasonic transducer is fixedly installed at the position close to a sample liquid flow terminal of the micro-fluidic chip, interfacial tension is reduced through ultrasonic waves, meanwhile, the high absorption capacity of PDMS to the ultrasonic waves is utilized, the ultrasonic intensity is fast reduced within a short distance, and therefore an interfacial tension difference is formed between the two ends of the chip. Power for driving sample liquid flow to flow along a hydrophobic capillary channel in the terminal direction is provided through the difference, the power and the mechanical pumping power of a micropump included in the structure support each other and collaboratively operate, and the series of problems are all solved through the scheme.
Owner:NINGBO UNIV
Micro-fluidic chip device used for diagnosis of AIDS and based on dual-driving coupling operation mode
PendingCN107115901AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisUltrasonic sensorShortest distance
The invention relates to a micro-fluidic chip device used for diagnosis of AIDS and based on a dual-driving coupling operation mode and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for diagnosis of AIDS. But there exist a series of problems. The scheme aims to solve the series of problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force and a mechanical pumping force of a micropump contained in the structure are intercoupling with each other. Thus, the problems are solved.
Owner:葛宇杰
Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin
InactiveCN1181116CImprove toughening efficiencyImprove notched impact strengthEmulsionVinyl chloride
The present invention adopts acrylic ester monomer as main raw material, utilizes the processes of seed emulsion polymerization by adopting semi-continuous changing mode, agglomeration or organic agglomerating agent and addition of nano-grade inorganic particles to obtain composite particle latex; in the pressure of the above-mentioned latex it is grafted with polyethylene to obtain the invented composite polyvinyl chloride emulsion resin with high notch impact strength, weatherability and good low-temp. impact property at normal temp. It can be extensively used in the fields of indoor decoration material, electric equipmkent and meter, tog and others.
Owner:HEBEI UNIV OF TECH
Multichannel cholera diagnosis micro-fluidic chip device operating in double-drive coupling mode
InactiveCN106153697AGood compatibilityLow flow resistanceMaterial electrochemical variablesUltrasonic sensorShortest distance
The invention relates to a multichannel cholera diagnosis micro-fluidic chip device operating in a double-drive coupling mode, and belongs to the field of analytical tests. A series of problems exist if polydimethylsiloxane, namely, PDMS which is cheap and very easy to process is used for manufacturing a substrate of a cholera diagnosis micro-fluidic chip, and the micro-fluidic chip device aims at solving the series of problems. The micro-fluidic chip device is characterized in that PDMS with an original surface is selected as a substrate, a micro ultrasonic transducer is fixedly installed at the position close to a sample liquid flow terminal of the micro-fluidic chip to reduce the interfacial tension with ultrasonic waves, meanwhile, the strong absorption capability of PDMS on ultrasonic waves is utilized to rapidly reduce the ultrasonic wave intensity within a short distance, and thus an interface tension difference is formed between the two ends of the chip; the difference provides a force driving sample liquid flow to flow towards the terminal along a hydrophobic capillary channel, and meanwhile the force cooperates with the mechanical pumping force of a micropump included in the structure. Thus, the series of problems are overall solved.
Owner:NINGBO UNIV
Micro-fluidic chip device used for syphilis diagnosis and based on dual driving coupling operation principle
InactiveCN107121477AGood compatibilityLow flow resistanceMaterial analysis by electric/magnetic meansMicrofluidic chipMicro fluidic
The invention relates to a micro-fluidic chip device used for syphilis diagnosis and based on dual driving coupling operation principle and belongs to the field of analytical testing. Cheap and easily-processed polydimethylsiloxane, namely PDMS is used for manufacturing a substrate of a micro-fluidic chip for syphilis diagnosis. In fact, there exist a series of problems. The scheme aims to solve the series of problems. According to main points of the scheme, PDMS with primitive surface is selected as the substrate, and a miniature ultrasonic transducer is fixedly installed at the position near a sample fluid terminal of the micro-fluidic chip. Meanwhile, an ultrasonic attenuator is arranged at a sampling end of the micro-fluidic chip so as to rapidly decrease ultrasonic intensity progressively in a short distance. Therefore, interfacial tension difference is formed between two ends of the chip. The different provides a force for driving the sample fluid to flow along a hydrophobic capillary channel towards the terminal. The force is coupled with mechanical pumping force of a micropump contained in the structure. Thus, the series of problems are solved.
Owner:葛宇杰
Hydrophobic substrate-based dual-mode coupled driven microfluidic chip apparatus
InactiveCN107670711AGood compatibilityLow flow resistanceLaboratory glasswaresFluid controllersUltrasonic sensorStream flow
The invention relates to a dual-mode coupling-driven microfluidic chip device for hydrophobic substrate materials, belonging to the field of analysis and testing. There are actually a series of problems in using cheap and easy-to-process polydimethylsiloxane (PDMS) to make the substrate of microfluidic chips, and this case is aimed at this series of problems. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic waves can achieve the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip. This difference provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the direction of the terminal. This force also supports, couples, adjusts and cooperates with the mechanical pumping force of the micropump contained in the structure.
Owner:李榕萍
Dual-drive-coupling-operation-mode multichannel micro-fluidic chip device for cholera diagnosis
InactiveCN106153904AGood compatibilityReduced intensity of ultrasonic emissionDisease diagnosisAgainst vector-borne diseasesUltrasonic sensorShortest distance
The invention relates to a dual-drive-coupling-operation-mode multichannel micro-fluidic chip device for cholera diagnosis, and belongs to the field of analysis testing. As a series of problems exist when a substrate of a micro-fluidic chip for cholera diagnosis is made by polydimethylsiloxane (PDMS) which is low in cost and extremely easy to process; for solving the series of problems, the dual-drive-coupling-operation-mode multichannel micro-fluidic chip device for cholera diagnosis is characterized in that the substrate is selected from the PDMS with the original ecology surface, a micro-ultrasonic transducer is fixedly installed at the adjacent position of the terminal of sample liquid flow of the micro-fluidic chip, and the interfacial tension is reduced through ultrasonic; meanwhile, the ultrasonic intensity is rapidly and progressively decreased in the short distance through the high absorbing capacity of the PDMS for the ultrasonic, the difference of interfacial tension is formed in the two ends of the chip accordingly, the difference provides force for driving the sample liquid flow to flow to the terminal direction along a hydrophobic capillary channel, the force and the mechanical pumping force of a micro-pump contained in the structure are coupled and collaboratively operate at the same time, and the series of problems are solved together.
Owner:NINGBO UNIV
Dual-drive coupled mode micro-fluidic chip device for detecting various subtype swine influenzas
InactiveCN106153701AGood compatibilityDecreasing intensity of ultrasoundMaterial analysis by electric/magnetic meansLaboratory glasswaresUltrasonic sensorShortest distance
The invention relates to a dual-drive coupled mode micro-fluidic chip device for detecting various subtype swine influenzas, and belongs to the field of analysis testing. Low-cost and easily processed PDMS (polydimethylsiloxane) is used for manufacturing a substrate of a micro-fluidic chip for subtype swine influenza diagnosis, and a series of obstacles exist. The device is used for eliminating the obstacles. The scheme mainly includes that the PDMS with an original ecological surface is selected as the substrate, a miniature ultrasonic transducer is fixedly mounted near a sample liquid flow terminal of the micro-fluidic chip, interfacial tension is reduced by ultrasonic waves, ultrasonic intensity is rapidly decreased in a short distance by high ultrasonic wave absorption capacity of the PDMS, so that interfacial tension difference is formed between two ends of the chip and provides force for driving sample liquid flow to flow towards the terminal along a hydrophobic capillary channel, and the force and the mechanical pumping force of a micro-pump in the structure are in collaborative operation to eliminate the obstacles.
Owner:NINGBO UNIV
Micro-fluidic chip device adopting coupling operation of two drive modes for syphilis diagnosis
The invention relates to a micro-fluidic chip device adopting coupling operation of two drive modes for syphilis diagnosis and belongs to the field of analysis and testing. Aiming at solving the problems caused by adoption of cheap and easy-to-process PDMS (polydimethylsiloxane) for manufacturing a substrate of a micro-fluidic chip for syphilis diagnosis, the scheme is characterized in that the substrate adopts PDMS with an original surface, a miniature ultrasonic transducer is fixedly mounted in the position adjacent to a sample liquid flow terminal of the micro-fluidic chip, interfacial tension is reduced through ultrasonic waves, meanwhile, the ultrasonic intensity is reduced progressively and rapidly in a short distance on the basis of high ultrasonic absorption capacity of PDMS, so that interfacial tension difference is formed between two ends of the chip, and power for driving sample liquid flow to flow towards the terminal along a hydrophobic capillary channel is provided by the difference and is mutually supported, mutually coupled, mutually adjusted and mutually cooperative with mechanical pumping power of a micropump in the structure simultaneously.
Owner:NINGBO UNIV
Coupling dual-drive microfluidic chip device for simultaneously detecting various subtype swine influenzas
InactiveCN106153702AGood compatibilityLow flow resistanceMaterial analysis by electric/magnetic meansLaboratory glasswaresUltrasonic sensorShortest distance
The invention relates to a coupling dual-drive microfluidic chip device for simultaneously detecting various subtype swine influenzas and belongs to the field of analytical testing. Cheap polydimethylsiloxane very easy to treat, namely PDMS, is used for making a substrate of a microfluidic chip for subtype swine influenza diagnosis, and a series of problems exist actually. According to the key point of the scheme for solving the problems, the substrate is prepared by selecting the PDMS having an original ecological surface, a miniature ultrasonic transducer is fixedly installed at the neighbor position of the sample liquid flow end of the microfluidic chip, interfacial tension is reduced by using ultrasonic waves, meanwhile rapid progressive decrease of the ultrasonic intensity within a short distance is achieved by utilizing the strong ultrasonic wave absorption capability of the PDMS, accordingly interfacial tension difference is formed at two ends of the chip and provides the strength forcing sample liquid flow towards the end direction along a lyophobic capillary channel, and meanwhile the strength mutually supports, couples and adjusts and collaboratively operates with the mechanical pumping strength of a micro pump included in the structure.
Owner:NINGBO UNIV
Micro-fluidic chip device for syphilis diagnosis on basis of double-drive coupling operation principle
InactiveCN106153912AGood compatibilityLow flow resistanceMaterial analysisUltrasonic sensorHigh absorption
The invention relates to a micro-fluidic chip device for syphilis diagnosis on the basis of a double-drive coupling operation principle, and belongs to the field of analytical testing. When polydimethylsiloxane (PDMS) which is low in price and extremely easy to machine is used for making a substrate of a micro-fluidic chip for syphilis diagnosis, a series of problems exist practically, and in order to solve the series of problems, the micro-fluidic chip device is characterized in that PDMS with an original surface is selected as the substrate, a miniature ultrasonic transducer is fixedly installed on the position adjacent to a sample liquid flow terminal of the micro-fluidic chip, interfacial tension is reduced through ultrasonic waves, rapid diminishing of the ultrasonic intensity within a short distance is achieved by means of the high absorption capacity of PDMS for the ultrasonic waves, and therefore an interfacial tension difference is formed at the two ends of the chip; the difference provides power for driving the sample liquid flow to flow in the terminal direction along hydrophobic capillary channels, the power is coupled with mechanical pumping power of a micropump contained in the structure simultaneously, and therefore the series of problems are solved at one stroke.
Owner:NINGBO UNIV
Micro-fluidic chip device for acquired immune deficiency syndrome diagnosis based on dual drive coupling operation mode
InactiveCN106153892AGood compatibilityLow flow resistanceMaterial analysisUltrasonic sensorHigh absorption
The invention relates to a micro-fluidic chip device for acquired immune deficiency syndrome diagnosis based on a dual drive coupling operation mode, and belongs to the field of analytical testing. When cheap polydimethylsiloxane, namely, PDMS easy to process is used for manufacturing a substrate of a micro-fluidic chip for acquired immune deficiency syndrome diagnosis, a series of problems exist. The scheme aims at the series of problems. According to the scheme, the PDMS with an original ecological surface is selected in the substrate, a micro ultrasonic transducer is fixedly installed at the position close to a sample liquid flow terminal of the micro-fluidic chip, interfacial tension is reduced through ultrasonic waves, meanwhile, the high absorption capacity of PDMS to the ultrasonic waves is utilized, the ultrasonic intensity is fast reduced within a short distance, and therefore an interfacial tension difference is formed between the two ends of the chip. Power for driving sample liquid flow to flow along a hydrophobic capillary channel in the terminal direction is provided through the difference, the power is coupled with mechanical pumping power of a micropump included in the structure, and the series of problems are all solved through the scheme.
Owner:NINGBO UNIV
Multi-channel and dual-driving coupled microfluidic chip device for cholera diagnosis
InactiveCN107670733AGood compatibilityLow flow resistanceLaboratory glasswaresBiological testingUltrasonic sensorCapillary channel
The invention relates to a multi-channel and dual-driving coupled microfluidic chip device for cholera diagnosis and belongs to the field of analysis and test. At present, cheap and very easily processed polydimethylsiloxane PDMS is used as a microfluidic chip substrate for cholera diagnosis so that a series of problems are produced. PDMS with the original ecological surface is selected as a substrate and a micro-ultrasonic transducer is fixedly arranged at a position close to a sample fluid terminal of the microfluidic chip so that ultrasonic wave reduces the interfacial tension. Through thestrong absorption capability of PDMS to ultrasonic wave, fast progressive decreasing of the ultrasonic wave intensity is realized in a short range so that the interfacial tension difference at two ends of the chip is formed and provides power for driving a sample liquid to flow to the terminal along a hydrophobic capillary channel and through combination of the power and mechanical pumping power provided by a micropump in the structure, the above problems can be solved together.
Owner:李榕卿
Microfluidic chip apparatus using two-drive mode coupled operation and containing hydrophobic substrate
InactiveCN107670712AGood compatibilitySmall running resistanceLaboratory glasswaresFluid controllersShortest distanceEngineering
The invention relates to a microfluidic chip device containing a hydrophobic substrate, which is referred to as a coupled operation of two driving modes in the present case, and belongs to the field of analysis and testing. There are actually a series of problems in using the cheap and easy-to-process polydimethylsiloxane, namely PDMS, to fabricate the substrate of the microfluidic chip. This case aims at this series of problems. The main point of this case is that the substrate selects PDMS with an original surface, and manually fastens and locates the hinge-type clamp with the micro ultrasonic transducer attached to the position adjacent to the sample liquid flow terminal of the microfluidic chip, so that Ultrasound reduces the interfacial tension, and at the same time utilizes the strong absorption capacity of PDMS for ultrasonic waves to achieve a rapid decrease in ultrasonic intensity within a short distance, thereby forming an interfacial tension difference between the two ends of the chip, which provides a way to drive the sample liquid flow along the hydrophobic capillary. The force of the channel's flow in the direction of the terminal, which is also coupled to and cooperates with the mechanical pumping force of the micropump contained in the structure.
Owner:李榕萍
Syphilis diagnosis microfluidic chip apparatus using two-drive mode coupled operation
InactiveCN107670703AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisSyphilisUltrasonic sensor
The invention relates to a microfluidic chip device for syphilis diagnosis, which is titled coupling operation of two driving modes, and belongs to the field of analysis and testing. There are some difficulties in making the substrate of the microfluidic chip for syphilis diagnosis with cheap and easy-to-process polydimethylsiloxane (PDMS); this case aims at the above-mentioned difficulties. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic waves can achieve the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip. This difference provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the direction of the terminal. This force also supports, couples, adjusts and cooperates with the mechanical pumping force of the micropump contained in the structure.
Owner:李榕卿
Dual mode coupling driven micro-fluidic chip device aiming at hydrophobic substrate materials
InactiveCN106556711AGood compatibilityLow flow resistanceMaterial analysisUltrasonic sensorDual mode
The invention relates to a dual mode coupling driven micro-fluidic chip device aiming at hydrophobic substrate materials, and belongs to the field of analysis tests. Cheap and easily processed polydimethylsiloxane (PDMS) is used as the substrate of a micro-fluidic chip, a series of problems exists, and the invention aims to solve the problems. PDMS with an original surface is taken as the substrate, a micro ultrasonic transducer is fixed on a position close to the sample flow terminal of a micro-fluidic chip, ultrasonic waves are used to lower the interfacial tension; at the same time, PDMS has a strong performance on absorbing ultrasonic waves, so the ultrasonic wave strength rapidly decreases in a short distance, thus a difference of interfacial tension is formed between two ends of the micro-fluidic chip, the difference provides a force that drives the sample flow to flow to the terminal direction along a hydrophobic capillary channel, and at the same time, the force is supported, matched, coupled, and coordinated with a mechanical pumping force generated by a micro pump in the structure.
Owner:NINGBO UNIV
Microfluidic chip device for syphilis diagnosis based on principle of dual driving coupling
InactiveCN107670734AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial electrochemical variablesSyphilisUltrasonic sensor
The invention relates to a microfluidic chip device for syphilis diagnosis based on the operating principle of double-drive coupling, which belongs to the field of analysis and testing. There are actually a series of problems in making the substrate of the microfluidic chip for syphilis diagnosis with cheap and easy-to-process polydimethylsiloxane (PDMS). This case is aimed at this series of problems. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic waves can achieve the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip. This difference provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the direction of the terminal. This force is also coupled with the mechanical pumping force of the micropump contained in the structure, so that the series of problems can be solved in one package.
Owner:李榕卿
Chip device with dual-drive coupling operation and used for joint detection of six typical tumor markers
InactiveCN107694624AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisAbnormal tissue growthAbsorption capacity
The invention relates to a chip device for joint detection of six typical tumor markers with double-drive coupling operation, belonging to the field of analysis and testing. Using polydimethylsiloxane (PDMS) to make the substrate of the microfluidic chip for multi-channel joint detection of six typical tumor markers has obvious advantages, but there are also a series of problems; this case is aimed at this series of problems. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic wave achieves the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip, which provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the terminal direction. The force is also coupled with the mechanical pumping force of the micropump contained in the structure and operates in coordination.
Owner:李榕萍
Multi-channel cholera diagnosis microfluidic chip apparatus using dual-drive coupled operation mode
InactiveCN107670729AGood compatibilityDecreasing intensity of ultrasoundMaterial analysis by electric/magnetic meansLaboratory glasswaresAbsorption capacityTransducer
The invention relates to a multi-channel cholera diagnosis microfluidic chip apparatus using a dual-drive coupled operation mode, and belongs to the field of analytical testing. According to the present invention, the use of inexpensive and easily-processed polydimethylsiloxane (PDMS) to produce the substrate of a microfluidic chip for diagnosing cholera has a series of difficult problems, and a purpose of the present invention is to solve the series of the difficult problems; and the multi-channel cholera diagnosis microfluidic chip apparatus is characterized in that the substrate selects thePDMS having an original ecological surface, a miniature ultrasonic wave transducer is fixedly arranged at the position close to the sample liquid flow terminal of the microfluidic chip so as to reduce the interfacial tension through the ultrasonic wave, the strong absorption capacity of the PDMS on the ultrasonic wave is used to rapidly decrease the intensity of the ultrasonic wave within a shortdistance so as to form the interfacial tension difference on both ends of the chip, the interfacial tension difference provides a force for driving the sample liquid flow to flow toward the terminaldirection along the hydrophobic capillary channel, and the force and the mechanical pumping force of the micro-pump contained in the structure are coupled and synergistically operate, such that the series of the difficult problems are solved.
Owner:李榕卿
Microfluidic chip apparatus using dual-drive coupled mode and containing hydrophobic substrate
InactiveCN107670710AGood compatibilitySmall running resistanceLaboratory glasswaresFluid controllersUltrasonic sensorShortest distance
The invention relates to a microfluidic chip device including a hydrophobic substrate coupled with dual driving modes, belonging to the field of analysis and testing. There are actually a series of problems in using cheap and easy-to-process polydimethylsiloxane (PDMS) to make the substrate of the microfluidic chip. This case is aimed at this series of problems. The main point of this case is that the PDMS with the original ecological surface is selected as the substrate, and the elastic clamp with the micro-ultrasonic transducer attached to the clamping arm is elastically positioned on the sample liquid flow terminal of the microfluidic chip and its neighbors. position, the interfacial tension is reduced by ultrasonic waves, and at the same time, the strong absorption ability of PDMS to ultrasonic waves is used to achieve a rapid decrease in ultrasonic intensity in a short distance, thereby forming a difference in interfacial tension at both ends of the chip, which provides a driving force for the sample liquid flow The force flowing along the hydrophobic capillary channel to the terminal direction is also coupled with the mechanical pumping force of the micropump contained in the structure and cooperates with each other.
Owner:李榕萍
Acquired immunodeficiency syndrome diagnosis microfluidic chip based on double-drive coupled operation mode
InactiveCN107670708AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisUltrasonic sensorShortest distance
The invention relates to a microfluidic chip device for AIDS diagnosis based on a dual-drive coupling operation mode, which belongs to the field of analysis and testing. There are a series of problems in using cheap and easy-to-process polydimethylsiloxane (PDMS) to make the substrate of the microfluidic chip for AIDS diagnosis; this case is aimed at this series of problems. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic waves can achieve the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip, which provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the direction of the terminal, This force is coupled with the mechanical pumping force of the micropump contained in the structure at the same time, and this case solves this series of problems in a package.
Owner:李榕卿
Double-drive coupled operation chip device for joint detection of six typical tumor markers
PendingCN107282147AGood compatibilityLow flow resistanceLaboratory glasswaresMaterial analysisAbnormal tissue growthUltrasonic sensor
The invention relates to a double-drive coupled operation chip device for joint detection of six typical tumor markers, belonging to the field of analytical tests. The application of polydimethylsiloxane (PDMS) in preparation of a substrate of a micro-fluid chip for multichannel joint detection of the six typical tumor markers has obvious advantages, but still has a series of problems; the chip device aims at solving the series of problems. The chip device is characterized in that the PDMS having an originally ecological surface is selected as the substrate, and a minitype ultrasonic transducer is fixedly arranged at the position close to a sample liquid stream terminal of the micro-fluid chip; meanwhile, an ultrasonic attenuator is arranged at a sample inlet end of the micro-fluid chip, so that the ultrasonic strength decreases rapidly and progressively in a short distance; therefore, an interfacial tension difference is formed at the two ends of the chip; the interfacial tension difference provides a force which drives a sample liquid stream to flow to the terminal along a hydrophobic capillary channel, and the force has coupled and cooperative operation with mechanical pumping force of a micropump in the structure at the same time.
Owner:葛宇杰
Acquired immunodeficiency syndrome diagnosis microfluidic chip apparatus using dual-drive coupled mode
InactiveCN107670724AGood compatibilityDecreasing intensity of ultrasoundLaboratory glasswaresMaterial analysisUltrasonic sensorShortest distance
The invention relates to a microfluidic chip device for AIDS diagnosis in a dual-drive coupling mode, which belongs to the field of analysis and testing. There are a series of obstacles in making the substrate of the microfluidic chip for AIDS diagnosis with cheap and easy-to-process polydimethylsiloxane (PDMS); this case aims at the series of obstacles. The main point of this case is that the substrate is selected with PDMS with an original ecological surface, and a micro-ultrasonic transducer is fixedly installed near the sample liquid flow terminal of the microfluidic chip to reduce the interfacial tension with ultrasonic waves, and at the same time use PDMS to The strong absorption ability of ultrasonic waves can achieve the rapid decrease of ultrasonic intensity in a short distance, thus forming a difference in interfacial tension at both ends of the chip, which provides a force to drive the sample liquid flow along the hydrophobic capillary channel to the direction of the terminal, At the same time, this force supports and cooperates with the mechanical pumping force of the micropump contained in the structure, thereby overcoming the series of obstacles in one package.
Owner:李榕卿
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