Three-dimensional, living, self-regenerative structures of predetermined geometry comprising solidified print material comprising a biofilm of Bacillus subtilis comprise a TasA-R protein, wherein R is a recombinant, heterologous functional group, wherein the TasA-R provides a preferably tunable physiochemical property like viscosity, reactivity, affinity as a function of the R group.

The invention provides a transaminase mutant and application thereof, wherein the amino acid sequence of the transaminase mutant is formed after mutation of the amino acid sequence as shown in SEQ ID NO: 1, and mutated amino acid sites comprise T7C+S47C sites. The transaminase mutant having the mutation sites can be further prepared into an immobilized enzyme through an immobilization technology, the immobilized enzyme has relatively high activity and high stability, can be recycled for multiple times, and is applicable to continuous flow reaction in a packed bed.

The invention provides a transaminase mutant and application thereof, wherein the amino acid sequence of the transaminase mutant is formed after mutation of the amino acid sequence as shown in SEQ ID NO: 1, and mutated amino acid sites comprise T7C+S47C sites. The transaminase mutant having the mutation sites can be further prepared into an immobilized enzyme through an immobilization technology, the immobilized enzyme has relatively high activity and high stability, can be recycled for multiple times, and is applicable to continuous flow reaction in a packed bed.

A stimulus-responsive carrier, a method for making and a method of using the same are disclosed. The stimulus-responsive carrier comprises a polymeric component comprising poly(N-isopropylacrylamide) (PNIPAM), a copolymer comprising units derived from N-isopropylacrylamide and acrylic acid (PNIPAM-AA), poly N-vinylpyrrolidone, a copolymer of N-isopropylacrylamide and hydroxymethylacrylamide (PNIPAM-HMAAm), a copolymer of N-isopropylacrylamide and allylamine (poly(NIPAAM-co-allylamine)), poly 2-(2-methoxyethoxy) ethyl methacrylate, or any combination thereof; and a second component disposed within the polymeric component, the second component comprising a hydrogel, wherein the second component has a different composition than the polymeric component. The stimulus-responsive carrier is responsive to a stimulus comprising a temperature change, a pH change, application of a magnetic field, or any combination thereof.

A stimulus-responsive carrier, a method for making and a method of using the same are disclosed. The stimulus-responsive carrier comprises a polymeric component comprising poly(N-isopropylacrylamide) (PNIPAM), a copolymer comprising units derived from N-isopropylacrylamide and acrylic acid (PNIPAM-AA), poly N-vinylpyrrolidone, a copolymer of N-isopropylacrylamide and hydroxymethylacrylamide (PNIPAM-HMAAm), a copolymer of N-isopropylacrylamide and allylamine (poly(NIPAAM-co-allylamine)), poly 2-(2-methoxyethoxy) ethyl methacrylate, or any combination thereof; and a second component disposed within the polymeric component, the second component comprising a hydrogel, wherein the second component has a different composition than the polymeric component. The stimulus-responsive carrier is responsive to a stimulus comprising a temperature change, a pH change, application of a magnetic field, or any combination thereof.

Degradable hollow shell particles are disclosed that can encapsulate cells within the hollow inner cavity that allows for the high-throughput screening and sorting of the encapsulated cells based on their phenotypic properties. The solid-phase of the particle is porous such that solution exchange can occur between the external environment and the interior cavity. Further, the solid-phase contains degradable crosslinkers and can be degraded to release enclosed biological entities. An example embodiment consists of encapsulating a cell within the hollow shell particle, allowing the cell to accumulate biomass, selecting hollow shell particles based on accumulated biomass, and degrading the hollow shell particles to release the cells and develop hyper-producing cell lines. Exemplary cell types include microalgae, mammalian cells, bacteria, yeast, and fungi.

Degradable hollow shell particles are disclosed that can encapsulate cells within the hollow inner cavity that allows for the high-throughput screening and sorting of the encapsulated cells based on their phenotypic properties. The solid-phase of the particle is porous such that solution exchange can occur between the external environment and the interior cavity. Further, the solid-phase contains degradable crosslinkers and can be degraded to release enclosed biological entities. An example embodiment consists of encapsulating a cell within the hollow shell particle, allowing the cell to accumulate biomass, selecting hollow shell particles based on accumulated biomass, and degrading the hollow shell particles to release the cells and develop hyper-producing cell lines. Exemplary cell types include microalgae, mammalian cells, bacteria, yeast, and fungi.

The present invention relates to a CRISPR nanocomplex for nonviral genome editing, a method for preparing the same, and the like. The CRISPR nanocomplex for nonviral genome editing of the present invention has a size of several nanometers to several microns, enables intracellular delivery without external physical stimulation, and can be utilized for genome editing through nonviral routes with respect to target genes of cells. As a result, when used for preparation of animal model, microbiological engineering, cell engineering for disease treatment, or formulations for biological administration, the CRISPR Nanocomplex shows high intracellular delivery and gene editing efficiency, and can minimize problems, such as nonspecific editing, gene mutation, and induction of cytotoxicity and biotoxicity.

Antimicrobial preservative compositions that can be incorporated in products to be preserved are disclosed herein. The disclosed compositions include immobilized biocidal enzymes, such as cross-linking enzymes or active enzymes falling into the zymogen-class, for the purpose of modifying amino acid residues on a protein or binding a molecule of interest to a protein. The compositions include enzymes that are immobilized on a polymeric solid support, which improve the shelf life of the enzyme and protect the enzyme from auto-cross-linking or other deterioration over extended storage periods. Also disclosed are methods of increasing the self-like of products, such as personal care, household and industrial products, by incorporating an effective amount of the disclosed compositions into the product.

Antimicrobial preservative compositions that can be incorporated in products to be preserved are disclosed herein. The disclosed compositions include immobilized biocidal enzymes, such as cross-linking enzymes or active enzymes falling into the zymogen-class, for the purpose of modifying amino acid residues on a protein or binding a molecule of interest to a protein. The compositions include enzymes that are immobilized on a polymeric solid support, which improve the shelf life of the enzyme and protect the enzyme from auto-cross-linking or other deterioration over extended storage periods. Also disclosed are methods of increasing the self-like of products, such as personal care, household and industrial products, by incorporating an effective amount of the disclosed compositions into the product.