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Article
Binding equilibrium of I− to serum albumin with resonance Rayleigh scattering
The binding equilibrium between l− and human serum albumin (HSA) or bovine serum albumin (BSA) has been studied by means of the resonance Rayleigh scattering (RRS) and equilibrium dialysis. It has been found for ...
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Article
Binding equilibrium study of phosphotungstic acid and HSA or BSA with UV spectrum, fluorescence spectrum and equilibrium dialysis
The binding equilibrium between phosphotungstic acid (H7[P(W2O7)6] XH2O;PTA) and human serum albumin (HSA) or bovine serum albumin (BSA) has been studied by UV-Vis, fluorescence spectroscopies and equilibrium dia...
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Article
Platinum-group element (PGE) geochemistry of the Emeishan basalts in the Pan-** area, SW China
The Longzhoushan and Ertan basalts in the Pan-** area were generated by relatively low degrees of partial melting (< 7%), during which Ir, Ru, and Rh are compatible while Pt and Pd are incompatible. Most of th...
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Article
Two new benzoyl esters of glucose from Lagotis yunnanensis
Two new benzoyl esters of glucose 1-O-(E)-4′-methoxybenzoyl-β-D-glucopyranose (1) and 1-O-(E)-4′-methoxybenzoyl-β-D-gluconic acid (2) were isolated from Lagotis yunnanensis, together with six previously known iri...
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Article
Flavonoids from Pegaeophyton scapiflorum
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Article
∼4.1 Ga xenocrystal zircon from Ordovician volcanic rocks in western part of North Qinling Orogenic Belt
High-precision U-Pb dating by in situ LA-ICP-MS yields an age of 4079±5 Ma for a xenocrystal zircon from Ordovician volcanics of the Caotangou Group in western part of the North Qinling Orogenic Belt. As a result...
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Article
A new C19-diterpenoid alkaloid, habaenine C, from Aconitum habaense
A new C19-diterpenoid alkaloid, habaenine C (1), together with the two known compounds vilmorrianine C and crassicauline A, were isolated from Aconitum habaense. The structure of the new compound was elucidated o...
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Article
Flavonoids from Litsea ching**ensis
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Composition of supercritical fluid extracts of some Xanthium species from China
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Article
Density functional theory study of the photosensitization mechanisms of indigo
The triplet excited state properties and photosensitization mechanisms of indigo were investigated based on density functional theory calculations. The solvent effects on the photosensitization mechanisms of i...
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Article
Purification and characterization of two major selenium-containing proteins in selenium-rich silkworm pupas
Selenium (Se) is an essential trace element in vivo involved in the defense against oxidative stress. Se deficiency is associated with many human diseases. The bioactivity of Se is dose- and species-dependent. Si...
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Article
New neolignan glycosides and a new cerebroside from Symplocos caudata
A phytochemical investigation of the roots of Symplocos caudata Wall (Symplocaceae) resulted in the isolation and characterization of two optical isomers of a neolignan glycoside (1) and a new cerebroside (2). Th...
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Article
DSC-FTIR microspectroscopy used to investigate the heat-induced intramolecular cyclic anhydride formation between Eudragit E and PVA copolymer
Thermal-dependent six-membered cyclic anhydrides were formed in the Eudragit E and polyvinyl alcohol (PVA) copolymer via intramolecular ester condensation by using differential scanning calorimeter (DSC)-Fouri...
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Article
Synthesis, physicochemical and biological properties of oligonucleotides incorporated with amino-isonucleosides
Antisense oligonucleotides (ASONs) and siRNAs have been applied extensively for the regulation of cellular and viral gene expression, and RNAi is currently one of the most promising new approaches for anti-tum...
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Article
Isoflavonoids from Sophora tonkinensis
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Article
Chemical Constituents of Liriodendron tulipifera
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Article
Remove of heavy metals(Cu2+, Pb2+, Zn2+ and Cd2+) in water through modified diatomite
At present, heavy metal pollution has become a major environmental problem, influencing the survival of human and other creatures. Develo** heavy metal ion adsorbents, which are environment friendly, of low ...
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Article
Purification and characterization of two thermostable glucoamylases produced from Aspergillus niger B-30
Two thermostable glucoamylases were produced from Aspergillus niger B-30 by submerged fermentation. The two glucoamylases GAM-1 and GAM-2 were purified by ammonium sulfate precipitation, diethylaminoethyl-cellulo...
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Article
Two New Compounds from the Roots of Ilex pubescens
Two new compounds, named ilexin L1 and ilexin L3, were isolated from the roots of Ilex pubescens. Their structures were elucidated as 1-[3-formyl-2-methoxyacetyl-(E)-3-pentenyl] cycloolivil ketal (1) and rhodiosi...
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Article
Grafting β-CD copolymer metal complex from silicon gel by SI-ATRP