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Researchers Investigate Remote Control of Enzymes Using Laser Light Written by AZoOpticsMar 17 2021 The activity of enzymes in industrial processes, laboratories, and living beings can be remotely controlled using light. This requires their immobilization on the surface of nanoparticles and irradiation with a laser. Near-infrared light can penetrate living tissue without damaging it. The nanoparticles absorb the energy of the radiation and release it back in the form of heat or electronic effects, triggering or intensifying the enzymes' catalytic activity. This configures a new field of stud...

Study investigates activity of enzymes immobilized on gold nanoparticles controlled by infrared laser irradiation The activity of enzymes in industrial processes, laboratories, and living beings can be remotely controlled using light. This requires their immobilization on the surface of nanoparticles and irradiation with a laser. Near-infrared light can penetrate living tissue without damaging it. The nanoparticles absorb the energy of the radiation and release it back in the form of heat or electronic effects, triggering or intensifying the enzymes' catalytic activity. This configures a new ...

The study showed that not only the composition of the material but also its geometry influenced the effect of the nanoparticles on the enzyme.

By Daina Beth Solomon MEXICO CITY (Reuters) - Roberto Manuel wore two shirts, three jackets and four pairs of pants to brace himself for subzero temperatures in Matamoros, the Mexican city opposite Texas, where he lives in a flimsy tent while waiting to resolve an asylum claim in the United States. It was cold last year, but not like this with ice, the 43-year-old said on Tuesday evening by phone from the encampment, where he is among about 1,000 migrants, most from Central America, hoping to be granted refuge across the border. Manuel, from Nicaragua, has lived there a year and a half under f...