658 results about "Biological growth" patented technology

A building article incorporating a biocidal agent, such as copper oxine, that inhibits the growth of mold, fungi, algae, mildew, bacteria, lichen, and other undesirable biological growth is provided. The biocidal agent can be a biocide, fungicide, germicide, insecticide, mildewcide, or the like. The biocidal agent can be interspersed throughout the matrix of the article; applied as a surface treatment to the article; or applied as a treatment to the fibers reinforcing the article. The building article can include tile backer boards, decks, soffits, trims, decking, fencing, roofing, cladding, sheathing, and other products. The building article can also include a variety of different composite materials such as cement, gypsum, wood, and wood / polymer composites.

A method for the detection of microorganisms in a sample comprising contacting said sample with a biosensor concentration module, allowing microorganisms to grow for a first period of time and detecting growth of discrete microorganisms as an indication of the presence of said microorganisms.

Disclosed are systems and methods for manipulating chemical, biological, and / or biochemical samples, optionally supported on substrates and / or within chambers, for example biological samples contained on chips, within biological chambers, etc. In certain embodiments, an apparatus configured to be able to position a chamber or other substrate in one or more modules surrounding the apparatus is disclosed. The apparatus may be configured to be able to move the chamber or substrate in any set of directions, such as radially, vertically, and / or rotationally, with respect to the apparatus. The apparatus may be manually operated and / or automatically controlled. Examples of modules include, but are not limited to, stacking or holding modules, barcode readers, filling modules, sampling modules, incubation modules, sensor modules (e.g., for determining cell density, cell viability, pH, oxygen concentration, nutrient concentration, fluorescence measurements, etc.), assay modules (e.g., for ELISA or other biological assays), data analysis and management modules, control modules, etc. Sensors, control systems, and the like may also be positioned to facilitate operation of the device. Certain embodiments of the invention may be used, for example, to promote or optimize chemical synthesis or cell or biological growth, for instance, for the production of compounds such as drugs or other therapeutics.

A method for the evaluation, design and optimization of in-situ bioconversion processes for the conversion of carbon to methane and other useful gases and liquids. The method utilizes a comprehensive computer simulation model for accurately simulating the physical and dynamic conditions in a subterranean carbon-bearing formation and the effects of stimulating the growth of indigenous or non-indigenous microbes therein for the bioconverstion of carbon to methane and other useful gases and liquids. The method enables the prediction of bioconversion rates and efficiencies under a range of variables, and thus provides for the optimization of in-situ bioconversion process design and operation.

The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for preventing microbial growth in aqueous streams including the step of applying a composition of the invention to the stream. The compositions and methods can control microbial growth in aqueous streams used for transporting or processing food products.

Systems and methods for microorganism growth are disclosed. The systems include continuous-culture processes for the growth of large volumes of microorganisms.

The present method transfers carbon dioxide in increased concentrations using perfluorodecalin for growth of algae in a photobioreactor. First, a perfluorodecalin solution is provided and mixed with a biological growth medium and a surfactant. The biological growth medium, perfluorodecalin solution, and surfactant mixture are then emulsified by circulation in a high-pressure emulsifier. The emulsified biological growth medium, perfluorodecalin solution, and surfactant mixture are then added to a photobioreactor containing algae capable of photosynthetically utilizing carbon dioxide. After adding carbon dioxide to the photobioreactor, the carbon dioxide dissolves in the perfluorodecalin solution at a higher concentration than in the growth medium. Conditions sufficient for the algae to perform photosynthesis using carbon dioxide from the perfluorodecalin solution are maintained thereby increasing the growth rate of the algae in increased concentration of carbon dioxide due to the increased solubility of carbon dioxide in the perfluorodecalin solution.

The lack of air flow under body armor, helmets, and thick garments can lead to excessive moisture build up and discomfort on the wearers body due to lack of heat removal and effective evaporation of sweat. By incorporating wick covered heat pipes or thermal conductors with air flow channels in the apparel contact area between the garments, helmets, and body armor the effectiveness air flow cooling and evaporation of sweat can be restored. Humidity or temperature auto-actuated bi-material valves are used to control this air-moisture-heat flow to achieve a controlled comfortable humidity-temperature environment and avoid excessive cooling. Supplementary air pumps, filters, dehydrators, fluid pumps, heating fluids, and cooling fluids may be incorporated to enhance the effectiveness. Biocides and hydrophilic materials are also incorporated on the wick coverings to avoid biological growth and maintain performance to achieve a healthy environment for the wearer.

The present invention relates to the use of antimicrobial peptides in the inhibition of microbial growth and proliferation. Novel antimicrobial truncated peptides are disclosed which are based upon SMAP 29 and RCAP 18, but which contain a lesser number of amino acid residues yet still retain bactericidal activity. In addition, synthetic peptides based upon the SMAP 29 protein are disclosed which have fewer amino acid residues and include substitutions yet retain substantial activity. The invention also relates to a method of inhibiting microbial growth by administering an effective amount of a peptide in accordance with the invention, or by combining the peptides with other antimicrobial agents or antibiotics.

The present invention provides a movable load bearing structure with a surface that includes antimicrobial agents capable of eliminating, preventing, retarding or minimizing the growth of microbes and also minimizing cross-contamination when the load bearing structure is being reused for cargos that differ from a previously transported cargo, for example, different food types, such as poultry, fresh vegetables, and fresh fruit. The load bearing structure may be a dunnage platform or a container for storing and / or shipping cargo.

The invention relates to a closed or semi-closed landscape water body governance method including an aeration oxygen filling process, a biological treatment process and an artificial ecological reconstruction process; the biological treatment process includes adding microbial agents and biological growth-promoting agents; the artificial ecological reconstruction process includes bionic carbon fiber ecological grass and a compound ecological floating island technology; the water quality of the water body is improved by the aeration oxygen filling process and the biological treatment process; an ecological system is reconstructed and restored by the artificial ecological reconstruction process, and the water body landscape function is restored and promoted. The method can effectively improve the water quality of the water body, rapidly restores the water body ecological system and the self purification ability, and restores and promotes the water body landscape function; the water quality of the water body after governance achieves ''environmental quality standards for surface water'' (GB3838-2002) IV-class water standards. The method allows water quality improvement, ecological restoration and landscape promotion to be combined, has the characteristics of energy saving, good algae inhibiting effect, fast ecological restoration, low governance cost and the like, and has relatively good social benefits and ecological benefits.

Disclosed are systems and methods for manipulating chemical, biological, and / or biochemical samples, optionally supported on substrates and / or within chambers, for example biological samples contained on chips, within biological chambers, etc. In certain embodiments, an apparatus configured to be able to position a chamber or other substrate in one or more modules surrounding the apparatus is disclosed. The apparatus may be configured to be able to move the chamber or substrate in any set of directions, such as radially, vertically, and / or rotationally, with respect to the apparatus. The apparatus may be manually operated and / or automatically controlled. Examples of modules include, but are not limited to, stacking or holding modules, barcode readers, filling modules, sampling modules, incubation modules, sensor modules (e.g., for determining cell density, cell viability, pH, oxygen concentration, nutrient concentration, fluorescence measurements, etc.), assay modules (e.g., for ELISA or other biological assays), data analysis and management modules, control modules, etc. Sensors, control systems, and the like may also be positioned to facilitate operation of the device. Certain embodiments of the invention may be used, for example, to promote or optimize chemical synthesis or cell or biological growth, for instance, for the production of compounds such as drugs or other therapeutics.

A submicron structure having a silica body defining a plurality of pores, said silica body further defining an outer surface between pore openings of said plurality of pores; and having at least one silver nanocrystal within said silica body are described. Antimicrobial compositions comprising the submicron structure, and methods of killing or inhibiting growth of microbes using the submicron structure are described.

The invention provides a chitosan coated alga bioorganic fertilizer and a preparation method thereof. The chitosan coated alga bioorganic fertilizer is obtained by adopting a process combining high efficiency physical fragmentation with a chemical processing technology to extract physiological active substances and nutrients of algae, adding zymocytes with the synergism to alga residues, preparing an alga organic fertilizer in an aerobic fermentation mode, adding proper amounts of nitrogen phosphorous potassium, trance elements and functional bacteria, mixing alga extracts with the alga organic fertilizer, freeze-drying, and spraying the obtained alga bioorganic fertilizer with chitosans and a sodium alginate solution. The organic fertilizer which contains various biological growth promoters can improve utilization rates of the nutrients by crops and increase endurances and validities of effective components, and also can increase ventilation and coalescence capabilities of soil, obviously promote the formation of granule structures of the soil, slowly release the nutrients, satisfy demands of plants of different growth stages, and generate obvious positive effects on the crop maturation, output and quality improvements, disease and insect pest resisting and the like.

A pharmaceutical composition comprising an antimicrobial agent and an enhancer of an antimicrobial agent, wherein the enhancer of an antimicrobial agent is an inhibitor of gene, that by inactivating the gene product potentiates the effectiveness of the antimicrobial agent. In some embodiments, the pharmaceutical composition further comprises a pharmaceutically acceptable carrier. In some embodiments, the antimicrobial agent is an antimicrobial peptide such as a polymyxin, for example but not limited to colistin. In some embodiments of the present invention provides methods to treat and / or prevent infection of a subject with a microorganism by administering a pharmaceutical composition comprising an antimicrobial agent and an enhancer of an antimicrobial agent. In some embodiments, the present invention provides methods to inhibit growth of a microorganism by administering a pharmaceutical composition comprising an antimicrobial agent and an enhancer of an antimicrobial agent.

The invention discloses an in-situ remediation method of sediment in rivers, which comprises the steps that: (1) aboriginal microorganism liquid, biological growth stimulation liquid and biological detoxification liquid are fully mixed according to a weight ratio of 8-10: 0.8-1.5: 0.8-1.2; (2) a spray hopper gun or an injection method is adopted to inject the mixed liquid obtained in step (1) to the bottom of the sediment in rivers and the concentration of the aboriginal microorganism liquid is 0.010 multiplied by 10<-6>- 0.015 multiplied by 10<-6>g / m<3>; (3) after 5-7 days, the biological growth stimulation liquid is injected into the sediment in rivers each day and the weight of the biological growth stimulation liquid is the same with the weight of the mixed liquid in step (1); then the biological growth stimulation liquid is injected in a halved amount each day for 25-30 days. The method of the invention has good treatment and remediation effect, simple operation and little influence on normal municipal administration and the life of residents. A river flow aerobic self-purification ecological system established can keep persistent good state; good conditions are created for the establishment of the river flow aerobic self-purification ecological system so as to completely eliminate malodorous black river.

The invention relates to a technology for co-composting of blue-green algae and polluted bottom sediment, and belongs to the technical field of environmental engineering. The technology comprises the following steps: at first, heavy metal in the polluted bottom sediment is removed by adopting a bioleaching technology, then blue-green algae and the polluted bottom sediment are mixed, the physicochemical property of the mixture of the blue-green algae and the bottom sediment is regulated to the condition needed by growth of aerobic fermentation microorganisms through adopting conditioners such as straws, rice husks, bran, spent mushroom composts, dregs of decoctions, wood chips and the like by means of the characteristics of high water content of the blue-green algae and C / N ratio imbalance and the like, a certain quantity of nitrogen conserving agents is added, and then a forced ventilation fermentation manner is adopted in a compost factory, the temperature of the compost is increased to be more than 60 DEG C within an extremely short time, the high-temperature fermentation period is kept for about 15 days, and the compost is transferred in a secondary fermentation zone till the compost is decomposed thoroughly after the high-temperature fermentation period is ended. The technology achieves the cleanness of the polluted bottom sediment and large-scale treatment of the quick composting of blue-green algae and the polluted bottom sediment, and combines the harmlessness and the reclamation of the algae and the polluted bottom sediment organically.

The invention discloses a preparation method of a controlled release antibacterial film. The method includes the following steps of: (1) dissolving zein and a hydrophobic antibacterial agent into an alcoholic solution; (2) preparing a sodium caseinate aqueous solution; (3) adding the sodium caseinate aqueous solution into the solution obtained in step (1) under stirring; (4) subjecting the solution obtained in step (3) to rotary evaporation and centrifugation, then freeze drying the supernatant, thus obtaining nanoparticle powder; (5) dissolving a film-forming matrix in water, adding the nanoparticle powder and lysozyme to form a mixed solution; and (6) adding glycerin, and conducting film pouring, thus obtaining the film product. The method provided in the invention can simultaneously reduce initial microbial activity and inhibit microbial growth for a long term, and has the advantages of low instrument requirement, and controllable bacterium inhibiting intensity, thus having broad application prospects in food and medical products.

Provided herein are portable ultraviolet (UV) devices, systems, and methods of use and manufacturing same. Methods of use include methods for UV disinfection and sterilization, more specifically, methods for UV disinfection and sterilization of a container, a room, a space or a defined environment. The portable UV devices, systems and methods are particularly useful for the UV disinfection and sterilization of a container, a room, a space or defined environment used in the food, beverage and dairy industry and in the process of fermentation for an alcoholic beverage. Provided are also portable UV devices, systems, and methods for inhibiting the growth of one or more species of microorganisms present in a container, a room, a space or a defined environment, preferably for inhibiting the growth of one or more species of microorganisms present on an interior surface of a container, a room, a space or a defined environment.

The invention discloses an oxygen-release material for ground water in situ aerobic bioremediation, and a preparation method for the same, belonging to the field of oxygen-release material. The oxygen-release material is composed of the following component parts by weight: 11-14 parts of edible calcium peroxide by weight, 10 parts of sodium bentonite by weight, 1-3 parts of monopotassium phosphate by weight, 2-6 parts of ammonium sulfate by weight, 15 parts of river sand by weight and the coagulant (the rest), wherein total weight of the above materials is 70 parts by weight. The preparation method comprises the following steps of: weighing the calcium peroxide, the sodium bentonite, the monopotassium phosphate and the ammonium sulfate, fully mixing and uniformly dispersing the weighed materials; adding the cement and the river sand, adding water after mixing the cement and the river sand uniformly to prepare the mixture into a massive material, and naturally drying by air. The oxygen-release material has high total oxygen-release quantity and smooth oxygen-release speed, effectively prolongs the oxygen-release time, and improves the change cycle of the oxygen-release filler. The pH value and nutrient substances, such as N, P and the like in the water all meet the requirements on growth of aerobic microorganisms.

The invention discloses an aerobic composting method of food residue, and the method comprises the following steps: A. adding water to the food residue, performing rinsing and desalination treatment on the food residue to dilute and reduce salt content of the food residue; B. performing high-speed centrifugal dewatering treatment on the rinsed and desalinized food residue; and C. putting the dewatered food residue, auxiliary materials, biological agents and biological growth promoters in a biological reactor according to a preset proportion, and allowing aerobic digestion at high temperature to obtain an organic fertilizer. In the method, salt content and moisture in the food residue are reduced by pretreatment of the food residue, and special biological agents are used for increasing content of nutritive substances. An organic fertilizer product prepared by the method has the advantages of low moisture content, high organic matter content, low content of salt and other impurities, and high content of nutritive substances such as nitrogen, phosphorus and the like.

A method of producing in a bioreactor a biogas rich in methane involves electrolyzing water in an aqueous medium at a voltage in a range of from 1.8 V to 12 V in the presence of electrochemically active anaerobic microorganisms that biocatalyze production of hydrogen gas, and, contacting a species of hydrogenotrophic methanogenic microorganisms with the hydrogen gas and carbon dioxide to produce methane. Volumetric power consumption is in a range of from 0.03 Wh / LR to 0.3 Wh / LR. Current density is 0.01 A / cmE2 or lower. The voltage is sufficient to electrolyze water without destroying microbial growth. Such a method results in improved electrolysis efficiency while avoiding the use of noble metal catalysts. Further, a combination of water electrolysis with anaerobic degradation of organic matter results in increased biogas quality and in increased biogas quantity and yield. Oxidation of hydrogen sulfide contributes to the increased quality, while an increase in the rate of organic matter hydrolysis and an increase in the production of methane from hydrogen contributes to the increased quantity and yield.

The invention discloses an underwater ultraviolet sterilizer. The underwater ultraviolet sterilizer can be used in fresh water and sea water, and can perform underwater sterilization and biological growth inhibition by adopting ultraviolet radiation of which the wavelength range is 260-280 nm. The underwater ultraviolet sterilizer can be mounted near different types of field measurement sensors, and can effectively solve the problem that the biological growth in water is over exuberant, so that the measurement sensors drift, and sensitive elements are damaged. The underwater ultraviolet sterilizer consists of a transparent watertight protective cover, a luminous baseplate, an ultraviolet light emitting diode, a switch time schedule controller, a pressure-resistant watertight casing, a signal cable and the like, can realize instant starting, continuous light emitting and timed light emitting, is good in sterilization effect, is free of movable mechanical part and chemical substance precipitation, high in reliability and free of pollution on environment, and plays an obvious application effect on protection of marine measurement sensors, which are placed underwater in long term and are high in environment protection requirements and complex in geometric shape, from biological growth and adhesion.

The present invention provides a laspartomycin core peptide, a laspartomycin core peptide derivative, a antimicrobial laspartomycin derivative, a method for making laspartomycin core peptides, methods for making laspartomycin core peptide derivatives, methods for making antimicrobial laspartomycin derivatives, pharmaceutical compositions of antimicrobial laspartomycin derivatives, methods of inhibiting microbial growth and methods for treating and / or preventing microbial infections in a subject.

The invention discloses a method and a system for light supplement control of biological growth. The invention relates to the technical field of illumination and the field of plant cultivation and animal feeding. The system comprises four entity parts of an adjustable light source part, a height adjusting part, an intelligent control part and a characteristic parameter list downloading part, and a biological growth light characteristic parameter list. Equipment can operate automatically according to the characteristic parameter list downloaded at any time. By the invention, a biological researcher can research the ever changing biological light supplement independently; equipment manufacturers can research and develop, manufacture and sell universal equipment in batches; and during operation, the equipment operates automatically according to the downloaded research data. By the invention, the science, economy and popularization of the light supplement of the biological growth are improved.

A vacuum nitrogen-filling method for packing the edible superfine powder includes such steps as loading the powder product in package bag, inserting vacuumizing tube and nitrogen gas filling nozzle, vacuumizing, filling nitrogen gas, vaccumizing again, nitrogen gas filling again, removing, said tube and nozzle and sealing the package bag. Its advantages are long storage time and no loss in color, smell, taste and nutrients.

The present invention relates to a multistory system for using waste carbon dioxide and waste heat to facilitate cultivation of photosynthetic organisms. In particular, the present invention relates to a multistory system with the incorporation of upconverting and downconverting luminescent materials and other components suitable for enhancing growth of photosynthetic organisms.

Provided are multi-parameter sonde systems having a unique form-factor, wherein the plurality of sensors are arranged in a tight-fit configuration. This provides a single distal sensing surface and minimal separation distance between adjacent sensors. The sensors may be pie shaped with an interlocking feature to tightly hold the sensors together, with a sensor guard disposed over the outer surface of the interlocked sensors. Sensor-guards disclosed herein may have an integrated sensor storage and sensor guard configuration, thereby avoiding a need for a separate storage cup and that are configured to minimize unwanted biological growth. Also provided are uniquely shaped individual sensors having interlocking features to hold several sensors together in a sonde.

The invention discloses a method for preparing a stevia rebaudiana biological growth promoting agent and belongs to the field of agriculture and comprehensive utilization. In the preparation method, the stevia rebaudiana biological growth promoting agent is prepared by taking stevia rebaudiana waste residues and stevia rebaudiana stems obtained after stevia is extracted as raw materials and adding inorganic salt with trace elements and microbial composite strains for carrying out fermentation. The stevia rebaudiana biological growth promoting agent prepared by the method can be used as a fertilizer and a feed additive. When the stevia rebaudiana biological growth promoting agent is used as the fertilizer, the yield of crops and sweetness can be promoted and soil can be improved. When the stevia rebaudiana biological growth promoting agent is used as the feed additive, the quality and the yield of animal meat can be promoted and the antiviral ability of animals is improved. The stevia rebaudiana biological growth promoting agent has the characteristics of high efficiency, low cost, no toxicity, no residues, environmental protection and the like. The method for preparing the stevia rebaudiana biological growth promoting agent has high application value.

The invention provides a method of inhibiting microorganism growth comprising contacting a substance susceptible to microorganism growth with an amount of a non-decomposed moss effective to inhibit microorganism growth, wherein the moss is selected from the group consisting of sphagnum papillosum, sphagnum cristatum, and mixtures thereof.