Provided are a lysine decarboxylase immobilized cell and preparation method thereof.

According to one embodiment, a microcapsule for selective catalysis of gases, the microcapsule comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In more embodiments, methods of forming such microcapsules include: emulsifying at least one biocatalyst in a polymer precursor mixture; emulsifying the polymer precursor mixture in an aqueous carrier solution; crosslinking one or more polymer precursors of the polymer precursor mixture to form a plurality of microcapsules each independently comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In further embodiments, corresponding methods of using the inventive microcapsules for catalyzing one or more target gases using include: exposing a plurality of the biocatalytic microcapsules to the one or more target gases.

According to one embodiment, a microcapsule for selective catalysis of gases, the microcapsule comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In more embodiments, methods of forming such microcapsules include: emulsifying at least one biocatalyst in a polymer precursor mixture; emulsifying the polymer precursor mixture in an aqueous carrier solution; crosslinking one or more polymer precursors of the polymer precursor mixture to form a plurality of microcapsules each independently comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In further embodiments, corresponding methods of using the inventive microcapsules for catalyzing one or more target gases using include: exposing a plurality of the biocatalytic microcapsules to the one or more target gases.

Methods of forming such microcapsules, in accordance with some embodiments, include: emulsifying at least one biocatalyst in a polymer precursor mixture; emulsifying the polymer precursor mixture in an aqueous carrier solution; crosslinking one or more polymer precursors of the polymer precursor mixture to form a plurality of microcapsules each independently comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In further embodiments, corresponding methods of using the inventive microcapsules for catalyzing one or more target gases using include: exposing a plurality of the biocatalytic microcapsules to the one or more target gases.

Methods of forming such microcapsules, in accordance with some embodiments, include: emulsifying at least one biocatalyst in a polymer precursor mixture; emulsifying the polymer precursor mixture in an aqueous carrier solution; crosslinking one or more polymer precursors of the polymer precursor mixture to form a plurality of microcapsules each independently comprising: a polymeric shell permeable to one or more target gases; and at least one biocatalyst disposed in an interior of the polymeric shell. In further embodiments, corresponding methods of using the inventive microcapsules for catalyzing one or more target gases using include: exposing a plurality of the biocatalytic microcapsules to the one or more target gases.

Provided are an anaerobic immobilized bacterial agent, a preparation method for same, and applications thereof. The preparation method for the bacterial agent is: selecting four different anaerobic functional bacterial strains, utilizing a pure bacteria culturing technique to produce corresponding culture broths, then mixing the four culture broths according to a certain volume ratio to acquire a compound functional broth, subsequently concentrating into a functional flora precipitation, then dissolving the functional flora precipitation into a polyvinyl alcohol aqueous solution, dripping the solution into a first buffer solution to produce polyvinyl alcohol gel beads, and placing the gel beads produced into a second sulfate-containing buffer solution to produce sulfate-modified polyvinyl alcohol gel beads, that is, the anaerobic immobilized bacterial agent.

Provided are an anaerobic immobilized bacterial agent, a preparation method for same, and applications thereof. The preparation method for the bacterial agent is: selecting four different anaerobic functional bacterial strains, utilizing a pure bacteria culturing technique to produce corresponding culture broths, then mixing the four culture broths according to a certain volume ratio to acquire a compound functional broth, subsequently concentrating into a functional flora precipitation, then dissolving the functional flora precipitation into a polyvinyl alcohol aqueous solution, dripping the solution into a first buffer solution to produce polyvinyl alcohol gel beads, and placing the gel beads produced into a second sulfate-containing buffer solution to produce sulfate-modified polyvinyl alcohol gel beads, that is, the anaerobic immobilized bacterial agent.

The invention provides a process for producing a gel network, which gel network comprises a plurality of joined gel objects, which process comprises: forming a plurality of gel objects in one or more microfluidic channels; dispensing the gel objects from the one or more microfluidic channels into a region for producing the network; and contacting each gel object with at least one other gel object in said region to join each gel object to at least one other gel object at a region of contact between the gel objects. The invention also provides a network of joined gel objects, comprising a plurality of gel objects, wherein each gel object is joined to an adjacent gel object at a region of contact between the gel objects. Also provided are various possible uses of the gel network.

The invention provides a process for producing a gel network, which gel network comprises a plurality of joined gel objects, which process comprises: forming a plurality of gel objects in one or more microfluidic channels; dispensing the gel objects from the one or more microfluidic channels into a region for producing the network; and contacting each gel object with at least one other gel object in said region to join each gel object to at least one other gel object at a region of contact between the gel objects. The invention also provides a network of joined gel objects, comprising a plurality of gel objects, wherein each gel object is joined to an adjacent gel object at a region of contact between the gel objects. Also provided are various possible uses of the gel network.

The present invention relates to a method for reducing or preventing the formation or activity of a corrosion-associated biofilm on a metal surface, wherein the method comprises contacting the metal surface with a liquid composition comprising biocidal preparation. The present invention also relates to a microbicidal composition comprising at least one alcohol, one liquid hydrocarbon, a bacteriophage immobilized on a magnetic nanocomposite, at least one phage releasing reagent and one stabilizer. The microbicide composition and method of the present invention reduces biofilms on surfaces, and consequently, reduces, mitigates, or eliminates MIC in internal surface of the oil transporting pipelines.