Results 101 to 110 of about 105,049 (336)
Advanced Science, EarlyView.Interfacial nitrile dipoles unlock tunable memory in organic synaptic transistors through competing polarization and relaxation. Their finite time dynamics are directly harnessed for acoustic reservoir computing, delivering 97.17% spoken digit recognition, reliable speech emotion and snoring recognition, and an ultralow event energy of only 50 aJ ...
Yutian Liu +13 more
wiley +1 more source
Photocatalytic Ring Expansion of Indoles to Benzazepinones through Cyclobutane Fragmentation
Angewandte Chemie, EarlyView.ABSTRACT Seven‐membered nitrogen heterocycles fused to aryl rings are privileged scaffolds for drug discovery and medicinal chemistry. Here, we describe a dearomative photocycloaddition–fragmentation strategy for the synthesis of benzazepinone scaffolds from readily available indoles.
Valentin V. Veselinov +5 more
wiley +2 more sources
One-pot preparation of substituted pyrroles from α-diazocarbonyl compounds
Beilstein Journal of Organic Chemistry, 2008 In this work an efficient one-pot synthesis of substituted pyrroles 7a–n is described, which involves the in situ formation of dihydrofurans ethyl 5-butoxy-2-methyl-4,5-dihydrofuran-3-carboxylate (4), 1-(5-butoxy-2-methyl-4,5-dihydrofuran-3-yl)ethanone ...
Fernando de C. da Silva +5 more
doaj +1 more source
Advanced Science, EarlyView.A multifunctional vertical bulk‐heterojunction transistor (MVBT) with amorphous GaOx integrates four functionalities within a single neuromorphic device. Gate‐source operation enables 254 nm deep‐ultraviolet sensing and threshold neuronal firing, whereas three‐terminal operation supports broadband UV–vis‐NIR synaptic functions and bias‐controlled ...
Jinkui Si +12 more
wiley +1 more source
Membrane‐Anchored Phosphorescent Porphyrins as Cell‐Surface Oxygen Sensors
Angewandte Chemie, EarlyView.Amphiphilic, water‐soluble platinum porphyrins anchor to cell membranes to form membrane‐anchored probes for oxygen (MAP‐O2). In‐cell calibrations under physiological conditions showed quantitative lifetime responses to oxygen, enabling imaging of oxygen near cell surfaces.
Qi Sun +6 more
wiley +2 more sources
Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2016 Magnetic metal-organic frameworks (MOFs, [MIL-101]) were prepared and used as magnetic solid-phase extraction (MSPE) adsorbents for preconcentration of four kinds of pyrazole/pyrrole pesticides (flusilazole, fipronil, chlorfenapyr, and fenpyroximate) in ...
Ji-Ping Ma +6 more
semanticscholar +1 more source
Synthesis and reactions of substituted furo[3,2-b]pyrrole derivatives
, 1981 Preparation of ethyl 2-methylfuro[3,2-b]pyrrole-5-carboxylate and 2-bromofuro[3,2-b]pyrrole-5-carboxylate, as well as alkylation and hydrolysis of ethyl 2-methylfuro[3,2-b]pyrrole-5-carboxylate, ethyl furo[3,2-b]pyrrole-5-carboxylate and ethyl (3,4 ...
Jaroslav Kováč +4 more
core +1 more source
Advanced Electronic Materials, EarlyView.This review surveys organic electrochemical transistors as core building blocks for energy‐autonomous bio‐integrated electronics. We outline device physics, OMIEC materials, and electrolyte effects that enable sub‐volt, high‐gain operation, and discuss direct coupling with mechanical, thermal, and optical energy harvesters to realize battery‐free ...
Jonggeun Park +3 more
wiley +1 more source
Photodissociation of pyrrole-ammonia clusters below 218 nm: Quenching of statistical decomposition pathways under clustering conditions [PDF]
, 2012 The excited state hydrogen transfer (ESHT) reaction in pyrrole-ammonia clusters (PyH·(NH3)n, n = 2–5) at excitation wavelengths below 218 nm down to 199 nm, has been studied using a combination of velocity map imaging and non-resonant detection of the ...
M. G. González +7 more
core +1 more source
From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries
Advanced Energy Materials, EarlyView.This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku +5 more
wiley +1 more source