Results 31 to 40 of about 14,397 (234)

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

Angewandte Chemie, EarlyView.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner, Sunwu Song, Siyang Feng, Liangxuan Wang, Miguel Ródenas, Begoña Milián‐Medina, Min Sang Kwon   +6 more
wiley   +2 more sources

A new family of StART domain proteins at membrane contact sites has a role in ER-PM sterol transport

eLife, 2015
Sterol traffic between the endoplasmic reticulum (ER) and plasma membrane (PM) is a fundamental cellular process that occurs by a poorly understood non-vesicular mechanism. We identified a novel, evolutionarily diverse family of ER membrane proteins with
Alberto T Gatta, Louise H Wong, Yves Y Sere, Diana M Calderón-Noreña, Shamshad Cockcroft, Anant K Menon, Tim P Levine   +6 more
doaj   +1 more source

Gombapyrones E and F, New α-Pyrone Polyenes Produced by Streptomyces sp. KMC-002

Molecules, 2011
Microorganism-derived polyene polyketides have been shown to display a variety of biological activities and have attracted great interest due to their structurally intriguing chemical diversity.
Kang Ro Lee, Hak Cheol Kwon, Hyun Ok Yang, Hyun Bong Park   +3 more
doaj   +1 more source

Polyenes and vision

Chemistry & Biology, 1996
Polyenes are important for vision in all sighted species. The visual pigments (the rhodopsins) all use 11-cis-retinal as the chromophore; some possible reasons for the importance of this isomer are now emerging. New results on the involvement of xanthophils in the maintenance of the retina are also discussed.
openaire   +2 more sources

Controlled delivery of membrane proteins to artificial lipid bilayers by nystatin-ergosterol modulated vesicle fusion

, 2006
The study of ion channels and other membrane proteins and their potential use as biosensors and drug screening targets require their reconstitution in an artificial membrane.
Fisher, K.H., Berry, RM, Fisher, K H, Berry, R M, de Planque, MR, de Planque, M R R, Sandison, ME, Watts, A, Mendes, G P, Morgan, Hywel, Watts, A., Berry, Richard, Sandison, M E, de Planque, M.R.R., Sandison, Mairi E., Mendes, GP, Zagnoni, M, Zagnoni, Michele, Watts, Anthony, Berry, R.M., Morgan, H, Mendes, G.P., Fisher, KH   +22 more
core   +1 more source

Crystal Facet‐Polysaccharide Matching in CFS‐P Nanocrystals Drives Fungal Uptake, Vacuole Destruction, and Selective Antifungal Activity

Advanced Science, EarlyView.
Facet‐engineered PVP‐capped CuFeSe2 nanocrystals exhibit potent, selective antifungal activity by strongly binding cell‐wall mannan, enabling vacuolar entry and organelle disruption. High‐index facets show superior mannan affinity, validated by theoretical calculations and experiments. CFS‐P induces vacuolar cavitation, mitochondrial abnormalities, and
Zhaohui Wang, Xiaojin Deng, Xujuan Huang, Yuhang Pan, Yao Qin, Lu Zhang, Le Xu, Tianyi Qin, Deteng Zhang, Yi Ma, Yalong Wang   +10 more
wiley   +1 more source

Why Does the Optimal Tuning Method of the Range Separation Parameter of a Long-Range Corrected Density Functional Fail in Intramolecular Charge Transfer Excitation Calculations?

Molecules
We performed intra- and intermolecular charge transfer (CT) excitation energy calculations of (a) conjugated carbon chain [H2N–(CH=CH)n–X] and (b) its equidistant H2NH∙∙∙HX (n = 2~8) with various electron acceptors (X = NH2, OH, Cl, CHO, CN, and NO2 ...
Han-Seok Bae, Dae-Hwan Ahn, Jong-Won Song   +2 more
doaj   +1 more source

Enzyme-like polyene cyclizations catalyzed by dynamic, self-assembled, supramolecular fluoro alcohol-amine clusters

Nature Communications, 2023
Terpene cyclases enable the synthesis of (poly)cyclic carbon frameworks via ring closure of linear polyenes. Here, the authors report in-situ formed fluorinated-alcohol-amine supramolecular clusters that mimic terpene cyclases for shape-controlled ...
Andreas M. Arnold, Philipp Dullinger, Aniruddha Biswas, Christian Jandl, Dominik Horinek, Tanja Gulder   +5 more
doaj   +1 more source

Efficient Screening of Organic Singlet Fission Molecules Using Graph Neural Networks

Advanced Science, EarlyView.
A high‐throughput screening framework based on graph neural networks (GNNs) and multi‐level validation facilitates the identification of singlet fission (SF) candidates. By efficiently predicting excitation energies across 20 million molecules, and integrating TDDFT calculations, synthetic accessibility assessments, and GW+BSE calculations, this ...
Li Fu, Longfei Lv, Fan Zhang, Si Zhou, Weiwei Gao, Jijun Zhao   +5 more
wiley   +1 more source

The Longest Polyene

, 2016
A microwave assisted Wittig reaction allowed the synthesis, in good yields, of the longest polyene so far recorded with 27 conjugated double bonds.
Hans-Richard Sliwka (1480153), Vassilia Partali (1480156), Ana Martínez (1475146), Muhammad Zeeshan (1480159)   +3 more
core   +1 more source