搜索结果: 1-15 共查到“化学 Light”相关记录31条 . 查询时间(0.125 秒)
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
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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...
Making higher energy light to fight cancer（图）
Making higher energy light fight cancer
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2019/12/13
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...
Cell chemistry illuminated by laser light（图）
Cell chemistry illuminated laser light
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2019/11/15
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...
UCLA Chemists Synthesize Narrow Ribbons Of Graphene Using Only Light And Heat（图）
UCLA Chemists Synthesize Narrow Ribbons Graphene Light Heat
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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...
Light drives single-molecule nanoroadsters
Light drives single-molecule nanoroadsters
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2016/11/29
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
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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...
Rice makes light-driven nanosubmarine
Rice light-driven nanosubmarine
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2015/12/7
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
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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
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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
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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
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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
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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
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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
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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
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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...