Shuguang Wang

TL;DR: This work reports cytotoxicity of gold nanomaterial of different size and shape using MTT test, absorption spectroscopy and TEM, which indicates that spherical gold nanoparticles with different sizes are highly toxic to human skin cells.

TL;DR: It is found that the citrate coated colloidal silver nanoparticles at 100 µg/mL level are not geno-, cyto- and phtotoxic, and on the other hand,citrate coated powder form of thesilver nanoparticles are toxic.

TL;DR: It is reported for the first time that two-photon Rayleigh scattering (TPRS) properties of gold nanorods can be used for rapid, highly sensitive and selective detection of Escherichia coli bacteria from aqueous solution, without any amplification or enrichment in 50 colony forming units (cfu)/mL level with excellent discrimination against any other bacteria.

TL;DR: A nanotechnology-driven approach that uses antibody-conjugated oval-shaped gold nanoparticles to selectively target and destroy pathogenic bacteria, which has enormous potential for rapid, on-site pathogen detection to avoid the distribution of contaminated foods.

TL;DR: It is found that gold nanoparticles can be absorbed onto the bacteria surface but not able to penetrate the bacteria wall to enter the bacteria, and the photomutagenicity of both citrate and Au3+ is likely due to the formation of free radicals, as a result of light-induced citrate decarboxylation or Au3+.