Results 91 to 100 of about 191,232 (317)

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

On the mechanism of carbon nanotube formation by means of catalytic chemical vapour deposition

, 2011
Despite enormous strides in the synthesis of carbon nanotubes (CNTs), the mechanism for growth is still a highly debated issue. It is generally accepted that the model for carbon filament growth [1, 2], derived from concepts of vapour-liquid-solid theory,
Ayre, Gregory N, Ayre, Gregory N.
core  

Heterogeneous alkaline calcium oxide nano-catalyst supported on porous materials for the transesterification reaction: A review

Results in Engineering
In the present review work, the use of calcium oxide as alkaline solid catalyst for the production of biodiesel using transesterification reaction was investigated. Calcium oxide catalyst were developed from various calcium rich biomass resources.
Asfaw Adeko Tigro, Sintayehu Mekuria Hailegiorgis, Ali Shemsedin Reshad   +2 more
doaj   +1 more source

Electronic Modifictions in Supported Palladium Catalysts

, 1994
XPS and IR spectroscopy indicate that the electron density of the supported metal clusters in Pd/LTL catalysts is a function of the support acidity/alkalinity. In addition, the neopentane and propane hydrogenolysis TOF's increase with increasing support acidity from alkaline to acidic.
Koningsberger, D.C., Mojet, B.L., Kappers, M.J., Muijsers, J.C., Niemantsverdriet, J.W., Miller, J.T., Modica, F.S.   +6 more
openaire   +2 more sources

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Preparação e caracterização de catalisadores de Ni suportado em espinélio MgAl2O4 utilizados na reação de decomposição do metano para obtenção de hidrogênio e nanotubos de carbono [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Este trabalho descreve a síntese e caracterização de catalisadores compostos por uma fase ativa ...
Nuernberg, Giselle de Boit
core  

Metallic salt deposition on porous particles by dry impregnation in fluidized bed: Effect of drying conditions on metallic nanoparticles distribution [PDF]

, 2009
In this paper, the fluidized bed dry impregnation of coarse alumina porous particles by a metallic salt, manganese nitrate, is investigated. In this technique the penetration of each drop of metallic solution in the porous solid particle and solvent ...
Desportes, Serge, Hemati, Mehrdji, Steinmetz, Daniel, Desportes, S., Hemati, M., Steinmetz, D., Barthe, Laurie   +6 more
core   +1 more source

Efficient corn stover-derived metal-supported biochar catalyst for hydrogenation of xylose to xylitol

Resources Chemicals and Materials
Xylitol, one of the top twelve chemical building blocks, is commercially synthesized through the xylose hydrogenation reaction using a metal catalyst. Biochar has emerged as an eco-efficient catalyst support material.
Kridsada Karin, Sanchai Kuboon, Bunyarit Panyapinyopol, Saran Youngjan, Wanwitoo Wanmolee, Nawin Viriya-empikul, Navadol Laosiripojana, Kamonwat Nakason   +7 more
doaj   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source

Nano-socketed nickel particles with enhanced coking resistance grown in situ by redox exsolution [PDF]

, 2015
DN thanks the European Project METSAPP (FCH JU-GA 278257) for funding. We also thank NSF and EPSRC for Materials World Network funding ref EP/J018414/1.Metal particles supported on oxide surfaces are used as catalysts for a wide variety of processes in ...
Ménard, Hervé, Gorte, Raymond J., Miller, David N, Oh, Tae Sik, Vohs, John M., Miller, David Noel, Miller, David N., Irvine, John T. S., Vohs, John M, Irvine, John T. S, Gamble, Stephen Richard, Ménard, Hervé; id_orcid, Bukhari, Syed M, Neagu, Dragos, Gorte, Raymond J, Irvine, John T.S., Bukhari, Syed Munawer, Irvine, John Thomas Sirr, Gamble, Stephen R., Oh, Tae-Sik, Bukhari, Syed M., Gamble, Stephen R   +21 more
core   +1 more source