搜索结果: 1-15 共查到“化学 Light”相关记录31条 . 查询时间(0.14 秒)
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南京农业大学农学院《Plant Communications》发表国家大豆改良中心盖钧镒院士和许冬清教授团队“The GmSTF1/2-GmBBX4 negative feedback loop acts downstream of blue light photoreceptors to regulate isoflavonoid biosynthesis in soybean”(图)
大豆改良 盖钧镒 许冬清 生物合成
2023/10/28
次生代谢产物异黄酮是一类主要在豆科植物中合成的多酚类物质。异黄酮不仅利于豆科植物应答生物和非生物胁迫、诱导根瘤形成等,而且对人体具有重要的保健和药用价值,比如预防和治疗癌症、心脑血管疾病和骨质疏松等。大豆是工业化生产异黄酮的重要来源,主要含有12种异黄酮物质及其衍生物。根据其化学结构的差异,可将其分为游离型苷元(aglycone)和结合型糖苷(glycoside)两大类,其中结合型糖苷占异黄酮总量...
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Scientists at the University of California, Riverside and The University of Texas at Austin have demonstrated that it’s possible to achieve photon up-conversion, the emission of higher energy light, w...
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Raman microspectroscopy is a laboratory technique used to produce molecular fingerprints of materials and biological specimens. However, to date, fluorescence has interfered with effective application...
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UCLA Chemists Synthesize Narrow Ribbons Of Graphene Using Only Light And Heat(图)
UCLA Chemists Synthesize Narrow Ribbons Graphene Light Heat
2017/12/19
Silicon — the shiny, brittle metal commonly used to make semiconductors — is an essential ingredient of modern-day electronics. But as electronic devices have become smaller and smaller, creating tiny...
Scientists at Rice University and at the University of Graz, Austria, are driving three-wheeled, single-molecule “nanoroadsters” with light and, for the first time, seeing how they move.The Rice lab o...
Characterization of the Light Harvesting Antennas of Photosynthetic Purple Bacteria by Stark Spectroscopy:I.LH1 Antenna Complex and the B820 Subunit from Rhodospirillum rubrum
ABCD rule accessory nipples acral acrolentiginous actinic keratosis alopecia amelonotic angiokeratoma angioma arborizing blood vessels
2016/5/23
We present low-temperature Stark measurements on the core light-harvesting complex 1 (LH1) of purple bacteria and the B820 subunit derived from LH1, which is a protein bound Bchl a dimer. It was found...
Though they’re not quite ready for boarding a lá “Fantastic Voyage,” nanoscale submarines created at Rice University are proving themselves seaworthy.Each of the single-molecule, 244-atom submersibles...
Isotopically light carbon dioxide in nitrogen rich gases: the gas distribution pattern in the French Massif Central, the Eifel and the western Eger Rift
Eger Rift French Massif Central Eifel carbon dioxide gas fractionation isotope composition
2015/9/10
Based on characteristics of the distribution pattern of the western Eger Rift spring gases, a distribution pattern is
presented for the gases of the French Massif Central. The central parts of these ...
Optimal thermal bath for robust excitation energy transfer in disordered light-harvesting complex 2 of purple bacteria
Optimal thermal bath robust excitation energy transfer disordered light-harvesting complex purple bacteria
2014/9/24
The existence of an optimal thermal bath to facilitate robust energy transfer between the spectrally separated B800 and B850 rings in light-harvesting complex 2 (LH2) of purple bacteria is investigate...
Efficient energy transfer in light-harvesting systems: Quantum-classical comparison, flux network, and robustness analysis
Efficient energy transfer light-harvesting systems Quantum-classical comparison flux network robustness analysis
2014/9/24
Following the calculation of optimal energy transfer in thermal environment in our first paper [J. L. Wu, F. Liu, Y. Shen, J. S. Cao, and R. J. Silbey, New J. Phys.12,105012(2010)],fullquantum dynamic...
Excitonic energy transfer in light-harvesting complexes in purple bacteria
Exciton energy transfer light-harvesting complexes purple bacteria
2014/9/24
Two distinct approaches, the Frenkel-Dirac time-dependent variation and the Haken-Strobl model,are adopted to study energy transfer dynamics in single-ring and double-ring light-harvesting (LH) system...
Efficient Energy Transfer in Light-Harvesting Systems, III: The Influence of the Eighth Bacteriochlorophyll on the Dynamics and Efficiency in FMO
Efficient Energy Transfer Light-Harvesting Systems the Eighth Bacteriochlorophyll Dynamics and Efficiency FMO
2014/9/24
ThemostrecentcrystalstructureoftheFennaMatthewsOlson (FMO) protein complex indicates the presence of an additional eighth chromophore, which has been proposed to serve as alink between the chlorosom...
Photoelectrochemical and photocatalytic properties of N + S co-doped TiO2 nanotube array films under visible light irradiation
Nanostructures Oxide Thin films Electrochemical properties
2011/8/18
Abstract: In this paper, we report on the co-doping nitrogen and sulfur has been achieved in the TiO2 nanotube array films by treatment with thiourea and calcination under vacuum at 500 {\deg}C for 3 ...
Driving conditions dependence of magneto-electroluminescence in tri-(8-hydroxyquinoline)-aluminum based organic light emitting diodes
magneto-electroluminescence organic light emitting diodes
2011/9/2
we investigated the magneto-electroluminescence (MEL) in tri-(8-hydroxyquinoline)-aluminum based organic light-emitting diodes (OLEDs) through the steady-state and transient method simultaneously. The...
Efficient energy transfer in light-harvesting systems, I: optimal temperature, reorganization energy, and spatialtemporal correlations
Efficient energy transfer light-harvesting systems optimal temperature reorganization energy spatio temporal correlations
2014/9/24
Understanding the mechanisms of efficient and robust energy transfer in light-harvesting systems provides new insights for the optimal design of artificial systems. In this paper, we use the Fenna-Mat...