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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...
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...
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...
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...
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...
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 ...
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...
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...
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...
ThemostrecentcrystalstructureoftheFennaMatthewsOlson (FMO) protein complex indicates the presence of an additional eighth chromophore, which has been proposed to serve as alink between the chlorosom...
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 ...
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...
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...

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