A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.

A porous microsphere and a method for preparing the same includes the following steps. A copolymer having a vinylbenzyl chloride unit and a vinylbenzyl alcohol unit is dissolved in an organic solvent, and inorganic particles are dispersed in the organic solvent to form a mixed suspension. An aqueous solution containing a surfactant is provided. The mixed suspension is emulsified in the aqueous solution to form an emulsion. The emulsion is heated to evaporate the organic solvent to obtain inorganic-composite porous microspheres suspended in water. The copolymer in the formed porous microspheres can be further carbonized or removed to produce inorganic-based porous microspheres containing carbon or not containing carbon.

Systems and methods for preparing encapsulant-containing polymer capsules and fibers, as well as the encapsulant-containing polymer capsules and fibers and composites including the same are described. In one example, forming a plurality of encapsulant-containing polymer capsules includes preparing a mixture comprising a polymer, a solvent, an encapsulant, and a polymer that is soluble in the solvent, and removing some of the solvent from the mixture to yield the plurality of polymer capsules. Each polymer capsule include a shell formed of the polymer and contains the encapsulant. In another example, forming a plurality of polymer fibers containing an encapsulant includes providing the mixture to an electrospin apparatus and electrospinning the mixture to yield the plurality polymer fibers, where each polymer fiber defines a hollow core that contains the encapsulant.

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.

The present invention relates to a method for producing biodegradable microspheres having improved safety and storage stability, and a method for producing the same. The present invention provides a method for preparing said biodegradable microspheres while minimizing the morphological changes of microspheres and significantly reducing residual solvents.

The present invention relates to a method for producing biodegradable microspheres having improved safety and storage stability, and a method for producing the same. The present invention provides a method for preparing said biodegradable microspheres while minimizing the morphological changes of microspheres and significantly reducing residual solvents.

The present invention provides polymersomes comprising amphiphilic block-copolymers and their use to quantify ammonia in samples (e.g., body fluid samples). More particularly, it provides a polymersome comprising (a) a membrane, which comprises a block copolymer of poly(styrene) (PS) and poly(ethylene oxide) (PEO), wherein the PS/PEO molecular weight ratio is higher than 1.0 and lower than 4.0; and (b) a core which encloses an acid and at least one pH-sensitive dye. Compositions, strips and kits comprising the polymersomes are also provided along with methods of quantifying ammonia in a sample using the polymersomes, compositions and kit.