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Stark Effect Spectroscopy of the Heme Charge Transfer Bands of Deoxymyoglobin
materials science electronic structure oxygen compounds myoglobin charge transport stark effect absorption spectra spectroscopy heme protoporphyrins
2016/5/23
We report the Stark spectra of the Soret, Q, and charge-transfer bands of deoxymyoglobin. The data show that band III has charge-transfer character but that the magnitude of the charge displacement is...
Interchromophore Interactions in Pigment-modified and Dimerless Bacterial Photosynthetic Reaction Centers
absorption bacteriochlorophyll electron transfer mutagenesis pigment exchange Stark spectroscopy
2016/5/23
The magnitudes of inter-chromophore interactions in bacterial photosynthetic reaction centers are investigated by measuring absorption and Stark spectra of reaction centers in which monomeric chromoph...
Charge Resonance Effects on Electronic Absorption Lineshapes:Application to the Heterodimer Absorption of Bacterial Photosynthetic Reaction Centers
Charge Resonance Electronic Absorption Lineshapes Heterodimer Absorption Bacterial Photosynthetic Reaction Centers
2016/5/23
The electronic absorption spectrum of the homodimeric special pair in bacterial photosynthetic reaction centers is greatly modified when one of the bacteriochlorophylls is replaced by a bacteriopheoph...
Stark Spectroscopy of Donor/Acceptor Substituted Polyenes
Stark Spectroscopy Donor Acceptor Substituted Polyenes
2016/5/23
The electronic structure of donor/acceptor polyenes (merocyanines) is studied by means of electroabsorption (Stark) spectroscopy. Molecules belonging to this class exhibit an extreme variability of th...
Electronic and Nuclear Dynamics of the Accessory Bacteriochlorophylls in Bacterial Photosynthetic Reaction Centers from Resonance Raman Intensities
chemistry biology and medicine,basic studies chlorophyll raman spectra photosynthetic bacteria scattering energy transfer absorption spectra dynamics photosynthetic reaction centers
2016/5/23
Resonance Raman spectra and absolute Raman scattering intensities of the Franck-Condon coupled vibrational modes of the accessory bacteriochloropyhlls (B) in the photosynthetic reaction center from Rb...
The effects of applied electric fields on the absorption or emission spectrum of a molecule is known as Stark Spectroscopy. This method probes the movement of charge associated with optical excitation...
Dipolar Character of Ligand-Centered Transitions in Transition Metal Tris-bipyridine Complexes
Stark spectra Tris-bipyridyl complexes UV spectroscopy Zn complexes
2016/5/23
The Stark spectra of bipyridine (bpy) and the metaltris(2,2'-bipyridine) complexes of Zn, Fe, Ru and Os have been measured in the ligand-centered region in the near UV. The results show that excitatio...
Effects of Applied Electric Fields on the Quantum Yields for the Initial Electron Transfer Steps in Bacterial Photosynthesis:II.Dynamic Stark Effect
Applied Electric Fields Quantum Yields Initial Electron Transfer Steps Bacterial Photosynthesis Dynamic Stark Effect
2016/5/23
The quantum yield of the initial charge separation steps in bacterial photosynthetic reaction centers has been shown to be reduced in an applied electric field [Part I, Lao et al., J. Phys. Chem. 97 (...
Higher-Order Stark Spectroscopy:Polarizability of Photosynthetic Pigments
Higher-Order Stark Spectroscopy Polarizability Photosynthetic Pigments
2016/5/23
Stark spectra for nonoriented molecules with typical broad inhomogeneous line widths are obtained by applying an ac electric field and detecting the change in absorbance at the second harmonic of the ...
Near-Infrared Resonance Raman Spectroscopy of the Special Pair and the Accessory Bacteriochlorophylls in Photosynthetic Reaction Centers
Near-Infrared Resonance Raman Spectroscopy Accessory Bacteriochlorophylls Photosynthetic Reaction Centers
2016/5/23
Rapid-flow resonance Raman spectra of the primary electron donor (a bacteriochlorophyll dimer known as P) and of the monomeric accessory bacteriochlorophylls (B) in the bacterial photosynthetic reacti...
Stark Effect Spectroscopy of the 1250 nm P+ Band of Rhodobacter sphaeroides Reaction Centers and Related Model Compounds
Photosynthesis Reactioncenter Stark spectroscopy Mixedvalence
2016/5/23
The absorption and Stark effect spectra of the 1250 nm hand associated with the oxidized special pair (P+) in Rhodobacter sphaeroides reaction centers have been measured. The absorption spectrum in th...
Photochemical Hole-Burning Spectroscopy of a Photosynthetic Reaction Center Mutant with Altered Charge Separation Kinetics:Properties and Decay of the Initially Excited State
PRIMARY ELECTRON-DONOR VIRIDIS REACTION CENTERS BACTERIAL REACTION CENTERS RHODOPSEUDOMONAS-VIRIDIS RHODOBACTER-SPHAEROIDES BURNED SPECTRA PURPLE BACTERIA LOW-TEMPERATURE ABSORPTION HETERODIMER
2016/5/23
Photochemical hole-burning spectra have been obtained for the lowest energy electronic absorption band of the primary electron donor P of photosynthetic reaction centers (RCs) that exhibit different r...
Large Protein-Induced Dipoles for a Symmetric Carotenoid in a Photosynthetic Antenna Complex
Bacterial Proteins Carotenoids Cell Membrane Chemistry, Physical Macromolecular Substances Membrane Potentials Membrane Proteins Photosynthesis Physicochemical Phenomena Rhodobacter sphaeroides Solvents Spectrum Analysis
2016/5/23
Unusually large electric field effects have been measured for the absorption spectra of carotenoids (spheroidene) in the B800-850 light-harvesting complex from the photosynthetic bacterium Rhodobacter...
菏泽学院化学化工系药物分析与应用研究所
菏泽学院 化学化工系 药物分析
2024/6/11
研究所负责人马心英，主要从事食品分析及电化学传感器方面的研究，制备了石墨烯、及石墨烯/聚亚甲基蓝、氨基酸掺杂纳米银等电化学传感器。检测对象包括食品添加剂、儿茶酚胺类神经递质以及对乙酰氨基酚、氧氟沙星等一些药物，已在SCI收录期刊及国内核心期刊发表相关论文30余篇，其中第一作者SCI论文10篇。参与完成山东省自然科学基金（第六位）：儿茶酚胺类神经递质的调控机制及微环境效应的实验和理论研究（ZR200...
基于描述含液颗粒材料介观结构的Voronoi 胞元模型和离散颗粒集合体与多孔连续体间的介-宏观均匀化过程, 定义饱和与非饱和多孔介质有效应力. 导出了计及孔隙液压引起之颗粒体积变形的饱和多孔介质广义有效应力. 用以定义广义有效应力的Biot 系数不仅依赖于颗粒材料的多孔连续体固体骨架及单个固体颗粒的体积模量(材料参数),同时与固体骨架当前平均广义有效应力及单个固体颗粒的体积应变(状态量) 有关. ...