45 results about "Biological hazard" patented technology

Chemical and biological detector systems, devices and apparatus. Such devices may be portable and wearable, such as badges, that are analyte-general, rather than analyte-specific, and which provide an optimal way to notify and protect personnel against known and unknown airborne chemical and biological hazards. The devices of the present invention are advantageously low-cost, have low-power requirements, may be wearable and are designed to detect and alarm to a general chemical and biological threat. A sensor device of the present invention in one embodiment includes two or more sensor devices, a processing module coupled to each of the sensor devices and configured to process signals received from each of the two or more sensor devices to determine an environmental state; and a communication module that communicates information about the environmental state to a user.

A method and system for detecting chemical or biological hazards in items is provided. A plurality of incoming mail mailboxes each include a sampler to sample air from a letter that is tested using a first sensor. Source information corresponding to hazard flagged mail pieces is utilized to block mail from that source at other mailboxes.

The present invention relates to rhamnolipid-based formulations for bio-hazard coatings and fire extinguishing compositions. In addition, the present invention relates to the methods of extinguishing fires and protecting objects by using the formulations of the present invention.

An improved crew mask for protection of a user against chemical and biological hazards is provided. The novel crew mask includes the following features: a facepiece that includes a hybrid face seal with both intern and flat seals, and at least one transparent lens positioned at the level of the eyes of the person; at least one inlet hose for delivery of filtered air operably connected to the facepiece; at least one exhaust one-way exhaust port for venting air from the crew mask; and a compact filter unit with a reduced airflow resistance relative to currently employed filter units.

The invention discloses a production method for promoting quality of cooled fresh-keeping beef. The method consists of the following steps: 1, implementing animal welfare in the processes of breeding, transporting and processing beef cattle so as to effectively reduce the stress reaction of live cattle; 2, adopting two-stage acid discharge, wherein precooling is performed for 2 hours in a rapid precooling room at an ambient temperature of 15 DEG C below zero in a first stage of acid discharge; and in a second stage of acid discharge, ozone fumigation is performed for 2 hours in acid discharge warehouse to effectively control surface microorganisms of acid discharge rooms and carcasses, and precooling is performed for 36 hours at an ambient temperature between 2 DEG C below zero and 2 DEG C and relative humidity between 85 and 90 percent; 3, effectively implementing an HACCP system in the processing process to control physical, chemical and biological hazards and improve product quality; and 4, applying vacuum thermal-shrinkage packaging technology to enable the shelf life to reach more than 90 days and applying air-conditioned fresh-keeping technology to reduce the exudation of bloody water in cooled fresh-keeping beef and enable the shelf life to reach more than 20 days.

The invention relates to a purifying method for bivalve molluscs. The method comprises the following steps that: (1), primary purification is carried out; to be specific, bivalve molluscs are cultivated in first purifying water temporarily and dactylococcopsis acicularis is placed for purification processing for 2 to 5d, wherein the first purifying water is natural seawater that is added with a immunopotentiator and is used for keeping continuous ultraviolet irradiation; and (2), secondary purification is carried out; to be specific, the bivalve molluscs after primary purification are cultivated in second purifying water temporarily and dactylococcopsis acicularis is placed for purification processing for 3 to 5d, wherein the second purifying water is natural seawater that is added with a immunopotentiator and is used for keeping continuous ultraviolet irradiation. Compared with the prior art, the provided purifying method has the following beneficial effects: with the primary and secondary purification method, biological danger from bacteria and viruses of the bivalve molluscs can be eliminated step by step, thereby substantially reducing purification processing time and improving the purifying effect; and after implementation of the method after one weak, the bacteria of the bivalve molluscs can be eliminated about 90% and the virus elimination rate can reach over 95%, thereby meeting the food sanitation standard.

A chemical/biological hazard protection suit has two pants legs which extend to a midsection below waist level. An opening in the midsection defines an outlet from the suit interior. A waste collector has an upper segment which is fixed to the midsection and which adjoins an intermediate segment which is in turn connected to a waste receptacle. A first seal is between the upper segment and the intermediate segment, and a second seal is between the intermediate segment and the waste receptacle. A region of weakened material encircles the intermediate segment between the seals. A wearer discharges waste through the outlet and past the two open seals into the receptacle, whereupon both seals are closed, and the receptacle is detached from the upper segment, leaving both the receptacle and the suit sealed. Prior to use, the waste receptacle may be retained within a pocket on one of the pants legs.

The present invention relates to a method for the deactivation and/or destruction of hazardous materials such as chemical or biological agents. The invention further relates to apparatus for treating hazardous material and for decontaminating items that may have come into contact with it, the apparatus comprising a treatment vessel or chamber and a light source capable of irradiating a catalyst within the treatment vessel or chamber with a predetermined wavelength of light.

The invention discloses an intelligent biological sample transport case which comprises a heat preservation transport case body. A case door is hinged to one side of the heat preservation transport case body through a hinge, an intelligent coded lock is arranged on the side, away from the hinge, of the heat preservation transport case body and the case door, and temperature control probes are fixedly installed on the two sides of the bottom of the case door; and a supporting plate is arranged in the heat preservation transportation case, a plurality of fixing holes are formed in the supporting plate, protection structures are arranged in the fixing holes, a fixing seat is arranged below the supporting plate, a fixing mechanism is arranged on one side of the heat preservation transportation box, a liquid nitrogen tank is arranged on the fixing mechanism, and a GPS positioner is further arranged on one side of the heat preservation transportation case. Long-time transportation of biological samples is facilitated, it is guaranteed that the position of the biological samples and the temperature in the case can be monitored at any time in the transportation process, real-time records can be remotely stored and printed at any time, the transportation safety is improved, meanwhile, the working efficiency is improved, and the biological hazard risk is reduced.

The invention discloses an application of sorbaldehyde as a natural anti-mould agent in grain storage, and aims to control the pollution of biological harmful factors such as poisonous fungi and mycotoxins generated in a grain storage process. The invention relates to the technical field of grain mould prevention, in particular to the use of sorbaldehyde as a natural anti-mold agent, controls theharm of harmful mould such as aflatoxin in the storage process of grains such as corn and peanuts so as to prevent or reduce the pollution of the mycotoxins such as the aflatoxin in the grains, and ensures the edible safety of grains serving edible and processing applications. The sorbaldehyde (E, E-2, 4-Hexadienal) used in the present inventio is a micromolecular volatile substance which naturally exists in plants, has the advantages of strong bacteriostatic activity, good volatility, high safety, gas phase bacteriostasis, convenient use and no residue, and meets people's requirements of green, safty and environmental protection of grain anti-mould agents.

The invention relates to a biological detecting method of a high-efficiency particulate filter and a detecting system of an isolating device. The biological detecting method of the invention is that a microorganism aerosol generator and an air microorganism sampler are arranged at the front end of the high-efficiency particulate filter at an exhaust outlet of the negative-pressure isolating device and simultaneously an air microorganism sampler is arranged at the back end of the high-efficiency particulate filter; when wind is fed into the negative-pressure isolating device, analog indicating microorganism are generated manually by the air microorganism aerosol generator, and the analog indicating microorganisms are respectively bacteria and virus that do not exist in natural air and do not have biological hazard to human, animals and environments; under the detection situations of two analog indicating microorganisms which are respectively bacteria and virus, the analog indicating microorganisms are collected by culture dishes inside the air microorganism samplers that are arranged at the front and back ends of the high-efficiency particulate filter; counting after the cultivation is implemented; proportional relation between the counting results before and after the filtering of the high-efficiency particulate filter is computed, thus obtaining the microorganism filtering efficiency of the high-efficiency particulate filter.

The invention, which belongs to the biological hazard prevention and control field, relates to a biological hazard monitoring, predicting and optimal controlling system for emergency (BMPOSE). The system is the Internet of things and connects two subsystems which comprise: a biohazard emergency monitoring system (BEMS) and a biological hazard predicting and optimal controlling system for emergency (BPOSE). The BEMS and the BPOSE carry out coupling and relevance of information through the Internet of things and complete the control of the biological hazard through data processing in the Internet of things. The system combines information acquisition, transmission, analysis, prediction and issuing. By using the system, technical difficulties of seamless coupling, such as emergency monitoring, predicting, decision support and the like, can be solved.

The invention relates to a sample detection device and method. The sample detection device comprises a reagent tube, a tube cover, a reaction container and a magnetic sleeve. One end of the reagent tube is provided with an opening, and the reagent tube is internally provided with at least a cracking cavity and an elution cavity. The tube cover is mounted at the opening end of the reagent tube and is rotatably connected with the reagent tube. The tube cover is provided with a first sample adding hole and a penetrating hole. The magnetic sleeve is inserted into the insertion hole, can move in the direction close to or away from the reagent tube, and is used for being matched with the magnetic rod to attract and release the magnetic beads. The reaction container is provided with a reaction cavity, and liquid in the elution cavity can flow into the reaction cavity. Therefore, the pretreatment of a to-be-detected sample and the separation, extraction and detection of the target substance are integrated in the reagent tube, seamless joint of the whole process is realized, and the reagent tube is convenient to use. In addition, the to-be-detected sample is prepared and detected in a closed space, so that the probability of pollution of the to-be-detected sample is reduced, the detection reliability is ensured, and the biological hazard is reduced.

The invention discloses a brucella biological terrorism warfare agent field gene detection method. The brucella biological terrorism warfare agent field gene detection method comprises the steps of S1, collecting an attack site sample and treating the attack site sample; S2, using a brucella field detection kit to carry out real-time fluorescent quantitative PCR inspection on the treated sample, wherein the brucella field detection kit comprises negative control, positive control and brucella specific upstream and downstream primers; correspondingly using the treated sample, the negative control and the positive control as substrates to carry out same real-time fluorescent quantitative PCR treatment under a same condition; and analyzing a detection result of a sample to be detected so as to judge whether the treated sample carries brucella. The brucella biological terrorism warfare agent field gene detection method disclosed by the invention can directly use the sample as the PCR detection primer, and is suitable for rapidly screening samples with brucella genome DNA from environment samples with various phase states. A solution is provided for fire fighting forces to rapidly recognize biological hazards of biological terrorism attack fields.

The invention provides a method for restoring heavy metal zinc-lead-copper polluted soil by ageratina adenophora. According to the technical scheme, the ageratina adenophora is selected as a plant repair variety, wherein the ageratina adenophora is a plant capable of growing in the polluted area preponderantly, and has the remarkable resistance and enrichment capability on heavy metal zinc, lead and copper in the polluted area; heavy metal zinc, lead and copper polluted area soil is restored based on the heavy metal enrichment capability of the ageratina adenophora; the ageratina adenophora isalso inoculated with a deep-color space endophytic fungus and a branch fungus root fungus, wherein the two kinds of fungus can effectively improve the tolerance and enrichment capability of the ageratina adenophora on heavy metals, so that the soil restoring efficiency of the ageratina adenophora is improved. The method is low in cost, high in efficiency and easy to operate, and the plantation process of the ageratina adenophora is strictly controlled, so that the biological hazard of the ageratina adenophora on the peripheral region of the polluted area is prevented.

The invention provides a cell strain for expressing Furin protein and application of the cell strain in culture of avian infectious bronchitis virus, the cell strain for expressing Furin protein is amammalian cell of which the genome is integrated with a chicken-derived Furin gene, and the chicken-derived Furin gene is introduced into the mammalian cell through a lentivirus. The cell strain for expressing the Furin protein can be used for in-vitro culture of multiple IBV strains, the technical problem that most IBV strains cannot grow in mammalian cells in the prior art is solved, the virus amplification process is simplified, potential biological hazards possibly caused by infection of other poultry are eliminated, which has wide application value in basic research and vaccine development.