Results 71 to 80 of about 280,664 (350)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Ion liquid chromatography on-a-chip with beads-packed parylene column [PDF]

, 2004
A parylene-MEMS ion-exchange Liquid Chromatography (LC) chip is presented here. The chip is integrated with microfluidic I/O ports, a separation column, frits/filters, and a conductivity detector.
He, Qing, Lee, Terry D., Pang, Changlin, Tai, Yu-Chong   +3 more
core  

Native Lignin Migration and Clustering in Wood: Superhydrophobic, Antimold, and Tribonegative Layers for Rain‐Driven Electrification

Advanced Functional Materials, EarlyView.
This study proposes a sustainable solution for rainwater‐driven energy harvesting by harnessing the intrinsic properties of lignin in wood. The first demonstration of an all‐wood tribonegative material for liquid–solid triboelectric nanogenerators is presented, eliminating the need for fluorine‐containing polymers and functional additives. Abstract The
Xuetong Shi, Ran Bi, Xin Shu, Peipei Wang, Yeedo Chun, Zhixiang Chen, Chris Zhou, Yi Lu, Orlando J. Rojas   +8 more
wiley   +1 more source

Purification of bovine pancreatic glucagon as a by-product of insulin production

Brazilian Journal of Medical and Biological Research, 1997
A process for purifying bovine pancreatic glucagon as a by-product of insulin production is described. The glucagon-containing supernatant from the alkaline crystallization of insulin was precipitated using ammonium sulfate and isoelectric precipitation.
A.S.R. Andrade, L. Vilela, H. Tunes
doaj   +1 more source

Harnessing Interfacial Cl− Ions for Concurrent Formate Production at Industrial Level via CO2 Reduction and Methanol Oxidation

Advanced Functional Materials, EarlyView.
The replacement of the anodic OER in CO2RR with energy‐saving methanol oxidation reaction and the creation of a favorable microenvironment through interfacial Cl− ions enable concurrent formate production at industrial‐level current densities. Abstract The efficient electrocatalytic conversion of CO2 to formate is often impeded by the high energy ...
Yiqun Chen, Yan Zhang, Zhen Li, Biao Feng, Mengting Li, Qiang Wu, Zheng Hu, Lawrence Yoon Suk Lee   +7 more
wiley   +1 more source

Chromatographie ionique avec déctecteur conductométrique et électrochimique couplés: application au dosage des nitrite, nitrate, chlorure et sulfate

CHIMIA, 1984
Selective determination of nitrite ions while in the presence of chloride, nitrate and sulfate ions was obtained using ion-exchange chromatography coupled with conductimetric and electrochemical detectors.
V. Kordorouba, M. Pelletier, A. Balikungeri, W. Haerdi   +3 more
doaj   +1 more source

Competitive adsorption of plasma proteins at solid—liquid interfaces [PDF]

, 1986
The competitive adsorption of human serum albumin (HSA), human immuno-γ-globulin (HIgG) and human fibrinogen (HFb) onto polystyrene (PS) at 20° C and a pH of 7.35 (phosphate-buffered saline) was studied.
Breemhaar, W., Feijen, J., Lensen, H.G.W., Smolders, C.A.   +3 more
core   +3 more sources

Covalent Adaptable Networks with Associative Siloxane Exchange Enabled by Amide‐Based Internal Catalysis: Designing for Reprocessability and Extrudability by Increasing the Cross‐Link Density

Advanced Functional Materials, EarlyView.
Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto, Tong Wang, Xiaoyang Liu, Linda J. Broadbelt, Tapas Debsharma, John M. Torkelson   +5 more
wiley   +1 more source

GLC analysis of base composition of RNA and DNA hydrolysates [PDF]

Various methods used for the analysis of the base composition of RNA and DNA hydrolysates are presented. The methods discussed are: (1) ion-exchange chromatography, (2) paper chromatography, (3) paper electrophoresis, (4) thin layer chromatography, (5 ...
Gehreke, C. W., Lakings, D. B.
core   +1 more source

Glutamine Phosphoribosylpyrophosphate Amidotransferase-independent Phosphoribosyl Amine Synthesis from Ribose 5-Phosphate and Glutamine or Asparagine [PDF]

, 2007
Phosphoribosylamine (PRA) is the first intermediate in the common pathway to purines and thiamine and is generated in bacteria by glutamine phosphoribosylpyrophosphate (PRPP) amidotransferase (EC 2.4.2.14) from PRPP and glutamine.
Downs, Diana M., Koenigsknecht, Mark J., Ramos, Itzel   +2 more
core   +2 more sources