Results 211 to 220 of about 1,341,714 (240)

Phosphoryl Radicals from Trivalent Iminyl Phosphines: A Photocatalytic Approach to N‐Phosphoryl Azetidines

open access: yesAngewandte Chemie, EarlyView.
Photochemically generated phosphoryl radicals from iminyl phosphines enable strain‐release addition to azabicyclobutanes, providing access to elusive N‐phosphoryl azetidines. Combined experimental, computational, and EPR studies reveal an unconventional water‐assisted photoredox pathway.
Chandu G. Krishnan   +4 more
wiley   +1 more source

Retreatment after loss of follow-up in adolescent and young adult patients living with HIV: a case-control study. [PDF]

open access: yesRev Lat Am Enfermagem
Piran CMG   +5 more
europepmc   +1 more source

Photocatalytic Solar Hydrogen Peroxide Production on Donor+Acceptor Linear Polymer Semiconductor Powders Reconfigurable by H‐Bonding and π‐Stacking Interactions

open access: yesAngewandte Chemie International Edition, EarlyView.
A linear polymer, poly(2,3‐dihydroxynaphthalene), when insolubilized, leads to self‐assembly into a hydroquinone–quinone donor+acceptor semiconducting architecture through H‐bonding and π‐stacking interactions. The polymer behaves as a heterogeneous photocatalyst in water for H2O2 production via water oxidation and O2 reduction under visible light.
Koki Yoshida   +4 more
wiley   +1 more source

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

open access: yesAngewandte Chemie International Edition, EarlyView.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source

Avaliação do risco coronário em mulheres através de parâmetros antropométricos indicadores de obesidade

open access: yesRevista Brasileira de Obesidade, Nutrição e Emagrecimento, 2012
Gonçalves, Roberto Marinho   +4 more
openaire   +2 more sources

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