Patent ID: 9381375
Filing Date: 2016-07-05
CPC Classification: A61B,A61L,A61N

Claim Text:
1. A method for tracing and killing bacteria by making a nanomaterial of the bacteria that are coated with self-assembly Au nanoshells and drawing support from laser-generated photothermolysis and luminescence, the method being characterized in comprising the following steps: selecting the bacteria as a biological template; mixing the bacteria with a solution containing Au ions for culture, wherein since surfaces of the bacteria each has an S layer composed of glycoproteins, and carboxyl groups in the glycoproteins in the S layer and ionized carboxyl groups of amino acid residues peptide chains act as sites for acting with the Au ions, hydrolysates of the glycoproteins such as hemiacetal hydroxyl groups of reducing sugar or free-state aldehyde groups act as electron donors for oxidation-reduction reaction, which reduces the Au ions into Au nanoparticles that deposit on the surfaces of the bacteria, so as to form the nanomaterial of the bacteria coated with the Au nanoshells; and exposing the nanomaterial to linear and non-linear laser, so as to generate heat that effectively kills the bacteria.