This study aimed to characterize and identify calcium-chelating peptides from rabbit bone collagen and explore the underlying chelating *** peptides and calcium were extracted from rabbit bone by instant ejection stea...
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This study aimed to characterize and identify calcium-chelating peptides from rabbit bone collagen and explore the underlying chelating *** peptides and calcium were extracted from rabbit bone by instant ejection steam explosion(ICSE)combined with enzymatic hydrolysis,followed by chelation reaction to prepare rabbit bone peptide-calcium chelate(RBCP-Ca).The chelating sites were further analyzed by liquid chromatography-tandem mass(LC-MS/MS)spectrometry while the chelating mechanism and binding modes were *** structural characterization revealed that RBCP successfully chelated with calcium ***,LC-MS/MS analysis indicated that the binding sites included both acidic amino acids(Asp and Glu)and basic amino acids(Lys and Arg),Interestingly,three binding modes,namely Inter-Linking,Loop-Linking and Mono-Linking were for the first time found,while Inter-Linking mode accounted for the highest proportion(75.1%),suggesting that chelation of calcium ions frequently occurred between two ***,this study provides a theoretical basis for the elucidation of chelation mechanism of calcium-chelating peptides.
The development of noble-metal-free electrocatalysts for water splitting is indispensable for the efficient production of hydrogen ***,a Co-doped Ni-Mo phosphide nanorod arrays fabricated on porous Ni foam was shown t...
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The development of noble-metal-free electrocatalysts for water splitting is indispensable for the efficient production of hydrogen ***,a Co-doped Ni-Mo phosphide nanorod arrays fabricated on porous Ni foam was shown to be an efficient binder-free electrocatalyst for water *** catalyst featured exceptional activity,exhibiting an overpotential of 29 mV at a current density of 10 mA·cm−2 for the hydrogen evolution reaction,whereas the corresponding precatalyst exhibited an overpotential of 314 mV at a current density of 50 mA·cm^−2 for the oxygen evolution *** achieved electrocatalytic performance provided access to a simple water splitting system,affording a current density of 10 mA·cm^−2 at 1.47 V in 1 M KOH *** functional theory results indicated that Co doping and phosphorization were responsible for the high electrocatalytic ***,this work paves the way for the development of novel noble-metal-free electrocatalysts for practical H2 production via water splitting.
“Development Policy on National Scientific and Technological information’(China Science and TeChnology Bluebook No. 6) has been formally issued for execution by the National Science Commission. This is a great event...
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“Development Policy on National Scientific and Technological information’(China Science and TeChnology Bluebook No. 6) has been formally issued for execution by the National Science Commission. This is a great event in our country’s scientific and technological information (STI).
The mechanism of activated carbon fiber (ACF) adsorption trihalomethanes (THMs) was studied. It was found that ACF adsorption THMs was exothermic, the physico-adsorption principally, but not a complete monolayer adsor...
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The mechanism of activated carbon fiber (ACF) adsorption trihalomethanes (THMs) was studied. It was found that ACF adsorption THMs was exothermic, the physico-adsorption principally, but not a complete monolayer adsorption. The adsorptive capacities of ACF increased as the four species of THMs became more hydrophobic, and as the chlorine atoms in CHCls were substituted by more bromine atoms. The result of fixed-bed reactor adsorption was fitted to that of isotherm experiments.
Six special methods are applied in the study of information *** are the methods of logical thinking,information investigation,comprehensive analysis,quantitative analysis,scientific summing up and systematic ***’s po...
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Six special methods are applied in the study of information *** are the methods of logical thinking,information investigation,comprehensive analysis,quantitative analysis,scientific summing up and systematic ***’s pointed out that the methodology of information sociology is an important part of the theory system of information sociology and is of great significance in guiding the practice of social information.
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