Results 161 to 170 of about 105,922 (209)

Decouple H2O2 Electrosynthesis From Microenvironmental Decomposition via Atomic Site Density Engineering

Angewandte Chemie, EarlyView.
Using defect‐rich Co‐N2O2 single‐atom catalysts as a model system, this work reveals that atomic site density governs the competition between H2O2 electrosynthesis and microenvironmental decomposition during 2e−‐ORR. Optimised site isolation suppresses HPRR and HDR, thereby establishing a site‐density principle to balance H2O2 formation and ...
Junwen Chen, Hongyu Zhou, Qiming Zhang, Shuang Zhong, Wei Ren, Lei Shi, Li Gao, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

College Students' ADHD Symptoms and Alcohol Response During Laboratory Self-Administration. [PDF]

Eur J Investig Health Psychol Educ
Stamates AL, Todaro SM, Sherman AL, Rothstein MC, López D, Weyandt LL.   +5 more
europepmc   +1 more source

Adaptive Hydrogenation of Alkynes Using CO as a Molecular Trigger to Selectively Produce Alkanes or Z‐Alkenes

Angewandte Chemie, EarlyView.
One catalyst for two products: CO acts as a molecular trigger for adaptive alkyne hydrogenation using supported Pd nanoparticles. The catalyst reversibly switches between the formation of alkanes under H2 and Z‐alkenes under H2/CO for 37 structurally diverse alkynes.
Manisha Durai, Lachlan Sharp‐Bucknall, Tim Alexander Schubert, Jacob Johny, John‐Tommes Krzeslack, Walid Hetaba, Walter Leitner, Alexis Bordet   +7 more
wiley   +1 more source

Do motives for and contexts of cannabis use interact to predict heavy cannabis use at the event-level? [PDF]

Am J Addict
Dyar C, Green E, Lee CM.
europepmc   +1 more source

Modular Access to α‐Tertiary Amines: Electrochemical Tandem Di‐Functionalization of Olefins With Ammonia Surrogates and Amino Acids

Angewandte Chemie, EarlyView.
A metal‐ and oxidant‐free electrochemical multicomponent di‐functionalization strategy that rapidly converts 1,1‐disubstituted alkenes into α‐tertiary primary amines with simultaneous installation of bio‐relevant sulfur or selenium motifs was devised for late‐stage functionalization. ABSTRACT Quaternary carbon centers, especially those bearing nitrogen,
Adrija Ghosh, Tarun, Sven Erik Peters, Lutz Ackermann, Debasis Banerjee   +4 more
wiley   +1 more source

Orthopaedic Trauma in Patients with Documented Alcohol Use: Injury Mechanisms, Clinical Characteristics, and Geriatric Vulnerability. [PDF]

Med Sci (Basel)
Sirbu I, Dmour BA, Tîrnovanu SD, Puha B, Cogian EG, Zubenschi M, Filip A, Alexa ID, Tîrnovanu MC, Dragos-Cristian P, Carp AC, Dmour A.   +11 more
europepmc   +1 more source

Ruthenium‐Catalyzed Nitrile‐Acrylate Reductive Coupling by 2‐Propanol: Synthesis of Enantioenriched β‐Amino Esters

Angewandte Chemie, EarlyView.
The first nitrile reductive couplings beyond stoichiometric metals or metalloids are described. Using a ruthenium catalyst derived from RuHCl(CO)(PPh3)3 and Cy‐BIPHEP, 2‐propanol‐mediated reductive coupling of phenyl acrylate with aromatic or aliphatic nitriles delivers α,β‐unsaturated β‐amino esters.
Sebastian Höthker, Colin E. Hayter, Weijia Shen, Michael J. Krische   +3 more
wiley   +1 more source

Postmortem Oxycodone Toxicology: A Systematic Review and Meta-Analysis of Concentrations and Interpretative Markers. [PDF]

Molecules
Fede MS, Pellegrini M, Minutillo A, Likey A, Montana A, Busardò FP, Tini A.   +6 more
europepmc   +1 more source

Adenylation Domain Engineering Enables Biosynthesis of an Improved Polymyxin Antibiotic

Angewandte Chemie, EarlyView.
To enable incorporation of l‐2‐aminodecanoic acid into polymyxin by fermentation, a single Trp‐to‐Ala substitution is rationally introduced into the adenylation‐domain residue of its nonribosomal peptide synthetase (NRPS) and efficiently switches substrate selectivity. The engineered strain produces biologically active Ada‐polymyxin, demonstrating that
Maximilian Müll, Pia Lanvers, Giulia Ravagnan, Kilian Klaus, Olena Nosovska, Ivan Vilotijevic, Jochen Schmid, Hajo Kries   +7 more
wiley   +1 more source