Método movido a luz cria pequenas moléculas de housano para a medicina

20 de maio de 2026

Reportado por IA

Pesquisadores da Universidade de Münster desenvolveram uma nova técnica que utiliza luz para produzir moléculas de housano altamente tensionadas. Essas estruturas compactas podem apoiar avanços no desenvolvimento de medicamentos e na ciência dos materiais.

Uma equipe liderada pelo Prof. Frank Glorius, do Instituto de Química Orgânica da Universidade de Münster, na Alemanha, apresentou o método. Ele converte hidrocarbonetos simples, conhecidos como 1,4-dienos, em housanos por meio de fotocatálise, que fornece a energia necessária para a transformação.

Scientists develop single-atom catalyst for CO2-to-methanol conversion

20 de março de 2026 Reportado por IA Imagem gerada por IA

Researchers at ETH Zurich have engineered a catalyst using isolated indium atoms on hafnium oxide to convert CO2 and hydrogen into methanol more efficiently than previous methods. This single-atom design maximizes metal use and enables clearer study of reaction mechanisms. The breakthrough could support sustainable chemical production if powered by renewables.

Scientists use iron photocatalyst to convert methane into building blocks for medicines, including dimestrol

Researchers at the University of Santiago de Compostela report a light-driven method that directly “allylates” methane—adding an allyl group that can be used to build more complex molecules—and they demonstrate the approach by producing the nonsteroidal estrogen dimestrol from methane.

Scientists develop sunlight method to convert plastic waste into hydrogen

04 de maio de 2026 Reportado por IA

Researchers at the University of Adelaide have devised a solar-powered process to transform plastic waste into clean hydrogen fuel and other chemicals. The technique, known as solar-driven photoreforming, uses sunlight and photocatalysts to break down plastics at low temperatures. Early experiments show promising hydrogen yields and system stability.

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Tiny metajets could steer light sails for interstellar travel

Researchers have developed minuscule devices that use light to control movement in multiple directions, advancing the potential for light-powered spacecraft. The metajets, made from silicon, were tested in a lab setting and showed promising results for steering large sails through space. This breakthrough could help overcome current limitations in directing such vessels over vast distances.

Researchers create light-guided evolution for dynamic proteins

09 de março de 2026 Reportado por IA

Scientists at EPFL have developed a technique called optovolution, using light to evolve proteins that switch states, sense environments, and perform computations. By engineering yeast cells to survive only if proteins behave dynamically, the method selects optimal variants rapidly. The approach, published in Cell, advances synthetic biology and optogenetics.

sexta-feira, 01 de maio de 2026, 10:24h