Abstract: A power converter is provided. The power converter includes a housing, a heat dissipation module, and a first circuit board. The housing forms a receiving space, wherein the housing includes a first housing port and a second housing port. The heat dissipation module is detachably connected to the housing, and disposed in the receiving space. The heat dissipation module includes an inner path that communicates the first housing port with the second housing port. Working fluid enters the inner path via the first housing port. The working fluid leaves the inner path via the second housing port. The first circuit board includes a first circuit board body and a first heat source, wherein the first heat source is disposed on the first circuit board body, and the first heat source is thermally connected to the inner path of the heat dissipation module.

Abstract: A water-soluble and biodegradable antimicrobial agent is provided, comprising a polymer composed of a segment A and a segment B, in which, the segment A has the following formula I: the segment B has the following formula II: wherein the segment A and the segment B in the polymer have a molar ratio of 1:0.007-1.2, and n is 0 or 1, m is an integer of 0-2, m+n?0, X is H, Na, K, NH4, ½Ca, or ½Mg, and Y is Cl, Br, or I.

Abstract: A method for preparing a polyglutamic acid (?-PGA) fiber having antibacterial and water absorption properties is provided. The method includes providing a ?-PGA fiber and immersing it in a sodium hypochlorite solution. A relation exists between an immersing time T of the ?-PGA fiber and a concentration X of the sodium hypochlorite solution as shown in the formula below: 10.2?(T?64.55X2+50X)?15.2, wherein X is 0.006-0.4 wt %.

Abstract: A method of preparing a water-soluble and biodegradable antimicrobial agent is provided. The method includes treating a polypeptide compound with sodium hypochlorite for at least 1 min, such that the polypeptide compound has at least one N-halamine group and has good antimicrobial effect. By using the method of the present invention, a chemical synthesis process is not required and an organic solvent is not required either, and thus, an antimicrobial agent having high water solubility, biodegradability, non-toxicity, good sterilization effect, and regeneration can be prepared with reduced harms to the environment.

Abstract: A method for preparing a polyglutamic acid (?-PGA) fiber having antibacterial and water absorption properties is provided. The method includes providing a ?-PGA fiber and immersing it in a sodium hypochlorite solution. A relation exists between an immersing time T of the ?-PGA fiber and a concentration X of the sodium hypochlorite solution as shown in the formula below: 10.2?(T?64.55X2+50X)?15.2, wherein X is 0.006-0.4 wt %.

Abstract: A water-soluble and biodegradable antimicrobial agent is provided, comprising a polymer composed of a segment A and a segment B, in which, the segment A has the following formula I: the segment B has the following formula II: wherein the segment A and the segment B in the polymer have a molar ratio of 1:0.007-1.2, and n is 0 or 1, m is an integer of 0-2, m+n?0, X is H, Na, K, NH4, ½Ca, or ½Mg, and Y is Cl, Br, or I.

Abstract: A method of preparing a water-soluble and biodegradable antimicrobial agent is provided. The method includes treating a polypeptide compound with sodium hypochlorite for at least 1 min, such that the polypeptide compound has at least one N-halamine group and has good antimicrobial effect. By using the method of the present invention, a chemical synthesis process is not required and an organic solvent is not required either, and thus, an antimicrobial agent having high water solubility, biodegradability, non-toxicity, good sterilization effect, and regeneration can be prepared with reduced harms to the environment.

Abstract: A platelet adhesion-resistant material is provided, which includes polytriuret-urethane consisting essentially of repeating structural units of formulae (I) to (III) in a random order, in which when the total number of the three repeating structural units in the polytriuret-urethane is 100, the number of the repeating structural units (I) is about 5 to about 50: in which each R independently represents a C2-C16 alkylene group, a C6-C30 aromatic group, a C6-C30 alicyclic group; n is an integer of 2 to 16; and R1 represents —(OCmH2m)p, in which m is an integer of 2 to 5, and p is an integer of 3 to 150.