55results about How to "Suitable for sterilization" patented technology

The present invention belongs to the field of chemical fluid mechanical technology, and relates to one kind of hydraulic cavitating disinfector. The disinfector consists of mainly pump, pipeline, orifice plate, flange, material tank, valve, pressure meter, etc. The present invention features that the throttling effect of the orifice plate is utilized to produce hydraulic cavitation and the instantaneous high temperature and high pressure produced during cavitating is utilized in disinfecting fluid material. The disinfector features high efficiency, convenient operation, instantaneous disinfection, local high temperature and integral normal temperature, etc. and can avoid the damage and overheat decomposition of effective components in the liquid material. The present invention is suitable widely for disinfection of water, milk, fruit juice, and other beverage, food and nutriment.

The present invention provides a combined labyrinthine fluid sterilizing apparatus, comprising a chamber having an inlet and an outlet as well as a blower/fan provided in the chamber. Ultraviolet lamps are mounted in the lumen of the chamber. The lumen of the chamber is divided by a plurality of bafflers having pores. The pores in the adjacent bafflers are arranged to stagger up and down or from side to side. A mesh plate is provided at the pore. The top and bottom plates of the chamber can be flipped open. The baffler is inserted in the slots in the inner side of the front and back plates. The top and bottom plates have the pore and a cover plate which are both covered by a shield. At least one of the bafflers has a pore, and is provided with a one-way openable valve. The blower is mounted at the pore of the baffler. The chamber and the bafflers are coated with a layer of titanium dioxide. According to the present invention, it is possible to add, remove, or replace the baffler, the filter mesh, the blower or the purifying accessories and the like. The one-way openable valve can prevent the polluted water or air from flowing backwards. Further the to and fro winding disinfecting and sterilizing path prolongs the disinfecting and sterilizing process and increases the duration. With the photocatalytic effect of titanium dioxide, the organic substances are effectively decomposed, the dirt is eliminated, and deodorization and sterilization achieved. As a result, an ideal effect of disinfection and sterilization is achieved.

A hydrogen peroxide sterilization device comprises a hydrogen peroxide liquid storage barrel, an ultrasonic atomizer, an electrical control unit, a vaporizing chamber, a metering pump, an solenoid-controlled valve, an air blower, a heater, a filter device, an air inlet and a steam outlet pipe; the ultrasonic atomizer is further provided with an ultrasonic nozzle provided with an air flue to evenly diffuse atomized hydrogen peroxide microdroplets in the vaporizing chamber, the vaporization efficiency is improved, the atomized hydrogen peroxide microdirplets can be vaporized rapidly at a lower temperature, and the energy is saved. Indoor air serves as carrier gas, outside air is not introduced, and secondary pollution is avoided. Hydrogen peroxide big droplets which are not vaporized in the vaporizing chamber can drop back on the heater under the action of gravity to be vaporized again. By controlling various related parameters, a dew point temperature of output vaporized hydrogen peroxide is made to be lower than the indoor temperature all the time, a steady flow is guaranteed for the vaporized hydrogen peroxide, and the water mist condensation phenomenon which occurs in the transport process are avoided.

The invention relates to a polysaccharide macromolecular paramagnetic metal complex and a synthesis method and an application thereof. Polysaccharide macromolecules are used as carriers, and a ligand compound, the side chains of which contain open-chain or annular polyamino polycarboxylic compounds, acts with paramagnetic metal ions to form the paramagnetic metal complex, wherein the paramagnetic metal ions are positive divalent or trivalent ions of metal elements, the atomic numbers of which are 21-29, 42 and 44 or 57-71. The polysaccharide macromolecular paramagnetic metal complex can be used as a magnetic resonance imaging contrast agent for lymphatic organs, lymphatic vessels, lymphatic systems and cardiovascular systems of people or other mammals.

The invention relates to a magnetic resonance image contrast agent which uses arabinogalactan as carrier, wherein its production comprises that: using ethylenediamine tetra acetic acid, diethylene triamine pentacetic acid N-butanimide active ester, ethylenediamine tetra acetic acid, or the anhydrides of diethylene triamine pentacetic, via one short connecting arm to react with amination arabinogalactan; forming amido bond to connect ethylenediamine tetra acetic acid or diethylene triamine pentacetic acid to the arabinogalactan, to match magnetic metal ion as manganese, iron or lanthanide rare-earth element, to obtain complex. The invention has significant liver selectivity and low cute toxin. And the inventive contrast agent can be used in magnetic resonance diagnosis, X-ray CT or Y-flash imaging diagnosis.

The invention provides a paramagnetic metal complex and a synthetic method and application thereof. The paramagnetic metal complex is an arabinogalactan-modified 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacethyl paramagnetic metal complex. A magnetic resonance imaging contrast agent prepared from the paramagnetic metal complex has high stability, water solubility and relaxation rate and is targeted to liver and kidney, so that targeted imaging is realized, and the imaging contrast and definition are improved. The paramagnetic metal complex has a good effect on raising the early diagnosis levels of diseases of liver and kidney organs, is about 2 times the relaxation rate of dotarem, has very long targeted radiography imaging time, can be easily prepared into a solution with required concentration for intravenous injection, is suitable for sterilizing and disinfecting with a hot pressing method, can be selectively identified by an asialoglycoprotein receptor on a liver parenchyma surface, and has high selectivity on livers of human beings or other mammals.

The invention discloses an air conditioner sterilization control method and an air conditioner. According to the air conditioner sterilization control method and the air conditioner, the sterilizationduration of the previous sterilization is acquired after a sterilization instruction is received, a first duration determined by an environment parameter and an air conditioner operation parameter iscalculated, when the previous sterilization duration is less than the first duration, or when the previous duration is greater than the first duration and the time interval since the previous sterilization is greater than a second duration, the air conditioner is controlled to execute sterilization according to the first duration; and the first duration is calculated by the product of the first fixed duration and the first sterilization coefficient, the first sterilization coefficient is determined based on the environmental parameter and the air conditioner operation parameter, namely, the first sterilization coefficient is related to the working state of the air conditioner and the surrounding environment, then the first duration is the duration most suitable for current sterilization,and therefore the problem of excessive sterilization or insufficient sterilization does not exist, and the technical problem of sterilization, insufficient sterilization or excessive sterilization ofan existing air conditioner can be solved.

The invention belongs to the field of ultraviolet disinfection sterilization and discloses a portable ultraviolet (UV)-light-emitting diode (LED) sterilizer and a disinfection application thereof. An irradiation portion of the sterilizer comprises a battery compartment, a power switch, a working station indicator, a gravity sensor and at least one UV-LED luminous chip, the gravity sensor is used for preventing the sterilizer from upwards irradiating so as to protect human eyes from being burnt, the UV-LED luminous chip is arranged on a luminous surface of the irradiation portion, and the emission wavelength of the luminous chip is in a range from 250nm to 300nm, preferably 265nm to 280nm. The portable UV-LED sterilizer has the advantages of being small and exquisite in size, capable of low voltage direct current supply, low in heat productivity, impact resistant, convenient to carry about and particularly applicable to ultraviolet sterilization for articles of tableware, mobile phones, keyboards, elevator buttons, remote control, underclothes and the like.

The invention provides a preparation method of a water-insoluble quaternary ammonium salt. The preparation method comprises first, performing a copolymerization reaction on dimethylaminoethyl methacrylate (DMAEMA) and ethyleneglycol dimethacrylate (EGDMA) to prepare a resin matrix with a polymer network structure, then performing a nucleophilic substitution reaction on the resin matrix and 1-chlorobutane, so as to give a quaternary ammonium group having bactericidal function on the polymer chain, and performing post-treatment to obtain the product. During the preparation of the resin matrix, since a porogen is added to enable the prepared polymer to have a well-developed pore structure, on the one hand, a subsequent quaternary-amination nucleophilic substitution reaction is facilitated, and on the other hand, a prepared bactericide has a larger specific surface area and enhanced bactericidal performance. The water-insoluble quaternary ammonium salt prepared by the preparation method ofthe invention not only has excellent bactericidal performance of a quaternary ammonium salt, but also is insoluble in water, free from residual poisons, can be recycled, and is particularly suitablefor sterilization and disinfection of industrial and civil water treatment and other fluid media.

The invention discloses an application of LED blue light in dairy product production. The LED blue light is mainly applied to a dairy product packaging procedure, and a blue LED light source with the wavelength of 450 nm plus or minus 25 nm is utilized; a material is always under irradiation of the LED blue light after the material leaves a closed system and before the material enters a packaging container, conditions such as irradiation intensity, an irradiation distance and the like are controlled to reach optimal values, and the sterilization effect is realized, wherein blue light irradiation power density at least reaches 5 mW/cm <2>, the shorter the irradiation distance, the better, and the irradiation distance cannot exceed 1 m. LED visible light is adopted as the light source, and bacteria in a diary product are killed in a photodynamic sterilization mode; the method has low cost, is safe, non-toxic and non-pollution, can be taken as an auxiliary method for a traditional sterilization technology, is a non-specific microorganism inactivating method and has a broad-spectrum sterilization characteristic, good flavor of the product is maintained to the greatest degree, and the shelf life is prolonged.

The invention provides a diamino polyethylene glycol modified paramagnetic metal complex magnetic resonance imaging contrast agent, and aims at solving the problems of low relaxation rate, high toxicity and large dosage of a contrast agent in the prior art. The contrast agent is prepared by the following steps: reacting 1,4,7,10-tetrazacyclododecane-1,4,7,10-tetraacetic acid compound with diaminopolyethylene glycol with different molecular weights; preparing a macromolecular ligand through an amidation reaction; and forming a paramagnetic metal complex with paramagnetic metal elements Sc, Ti, V, Mn, Cu, Mo, Ru, Fe or positive trivalent or divalent ion of lanthanide rare-earth elements. The contrast agent has the advantages of high stability, water solubility, relaxation rate and small dosage.

A touch appliance broad spectrum sterilization device and sterilization method thereof comprise a fluid sterilization liquid vessel which is used for holding the sterilization liquid; an atomizing nozzle is connected with the sterilization liquid vessel; a seal chamber used for holding the touch appliance, is provided with provided with the atomizing nozzle; a light source and radiation sterilization module which is put into the seal chamber. The touch appliance broad spectrum sterilization device and the sterilization method thereof can be used for the spectrum disinfection sterilization of various touch appliances, which can not only eliminate germs on the touch appliances to effectively protect all the circuit and electronic components from being damaged so as to assure the normal applied function but also improve the efficiency of sterilization and have the characteristic of being easily operated.

An MRI contrast medium using glycyrrhizic acid as its carrier is prepared through reaction between the mono-N-hydroxy succinimide (and monocyclic acid anhydride) of EDTA (or biethyltriamino pentacetate) and aminated glycyrrhizic acid, and coordinating with paramagnetic metal ions to obtain a match. It has high elaxation efficiency and selectivity to liver, and lower acute toxin. It can also be used for X-ray CT and gamma-ray flash imaging technique.

The present invention relates to a cucurbitacin B liposome drug and preparation thereof. The invention provides a cucurbitacin B nanometer liposome drug and a preparation method thereof. According to the present invention, a passive drug delivery way is used, and a substance polyethylene glycol containing polyhydroxy groups is linked to the phospholipid phosphoric acid group to modify so as to prepare the long-circulating nanometer liposome, wherein the structural modification effect is to protect the liposome from being identified and uptaken by opsonin in blood so as to reduce the liposome clearance rate and prolong the residence time in the blood, such that the action time of the drug is prolonged, the liposome can effectively reach the lesion, and the selectivity on the targeted tissue can be improved; the preparation prepared by the preparation method has characteristics of good physical stability, good chemical stability, long residence time in the body, small distribution volume in the body, and high blood drug concentration in the body; the drug of the present invention can be used for treatment of various types and various stages of liver cancers; and the cucurbitacin B liposome drug has characteristics of scientific formula, convenient use, good stability and low toxicity, and the preparation method is suitable for large-scale production.

The invention relates to a hydrogen peroxide low-temperature vaporization sterilization device, which comprises a main box body, wherein a hydrogen peroxide supply device is arranged in the main box body, and the device comprises a hydrogen peroxide liquid storage bottle and a hydrogen peroxide vaporization tank; a blasting water column device is arranged inside the hydrogen peroxide vaporization tank; by virtue of the blasting water column device, a hydrogen peroxide gas-liquid mixture is formed by a hydrogen peroxide solution; a gas-liquid separation device is arranged above the hydrogen peroxide vaporization tank; by virtue of the gas-liquid separation device, knockout occurs as the hydrogen peroxide gas-liquid mixture is blocked, so that the gas-liquid mixture is separated into hydrogen peroxide gas and hydrogen peroxide liquid drop, and the hydrogen peroxide liquid drop flows back into the vaporization tank.

The invention discloses a micro mobile soil steam sterilization device. The device comprises a cart rack and wheels installed at the bottom of the cart rack, the cart rack is provided with a water tank and a steam heating device, and the top of the water tank is provided with a feeding hopper and a feeding port; spray nozzles are connected to the two sides of the water tank through pipes, controlvalves are installed on the pipes, the front side of the water tank is connected with the steam heating device through a pipe, and an outlet of the steam heating device is connected with a plough share discharge pipe of an L-shaped structure. According to the micro mobile soil steam sterilization device, the water tank, a water pump and the steam heating device are arranged on a cart, and the household, micro and mobile soil steam sterilization device is obtained. The rear portion of the steam heating device is connected with the plough share discharge pipe of the L-shaped structure or a rakeplate, and the micro mobile soil steam sterilization device has the advantages of being simple in structure, small in size, low in cost and the like.

The purpose of the invention is to provide a quartz glass which has an excellent laser processability or which has wavelength-selective transmission properties and, therefore, is suitably usable for sterilization. The present invention pertains to a quartz glass wherein, when an indentation is formed on the surface of the quartz glass by using a Vickers indenter, a pressing load of the Vickers indenter at which the incidence of cracking is 50% is 0.1-0.5 kgf, or a quartz glass wherein the linear transmittance (%) at a wavelength of 265 nm in terms of a quartz glass thickness of 1 mm is 85% ormore and the difference [delta]T between the linear transmittance (%) at a wavelength of 230 nm and the linear transmittance (%) at a wavelength of 200 nm is 10-50%.

The present invention relates to one kind of tree-shaped macromolecular paramagnetic metal complex and its synthesis process and use. The paramagnetic metal complex consists of tree-shaped macromolecular with 1, 4, 7, 10-tetraazacyclo dodeane nucleus as carrier, polycarboxylic acid with opened or ring side chain as the ligand and paramagnetic metal +2 or +3 ion of element with atomic number of 21-29, 42, 44 or 57-71. The paramagnetic metal complex may be used in magnetic resonant imaging analysis, X-ray CT, ultrasonic imaging diagnosis of the lymphatic system and cardiovascular system of human body and other mammal.

The invention relates to a tumor targeting poly-asparagine radical compound and a synthetic method and uses thereof. The poly-asparagine radical compound consists of a carrier of poly-asparagine macromolecule and a side chain which has a tumor targeting group and a stable radical compound. The compound can be used for electron paramagnetic resonance imaging analysis and magnetic resonance imaging analysis of various tumors or cancer pathological changes in human bodies or other mammal bodies, X-ray CT and ultrasonic image medicinal imaging diagnosis.