Results 71 to 80 of about 724,446 (311)

Synthesis of Ball-Like Ag Nanorod Aggregates for Surface-Enhanced Raman Scattering and Catalytic Reduction

Nanomaterials, 2016
In this work, ball-like Ag nanorod aggregates have been synthesized via a simple seed-mediated method. These Ag mesostructures were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), ultraviolet-visible ...
Wenjing Zhang, Yin Cai, Rui Qian, Bo Zhao, Peizhi Zhu   +4 more
doaj   +1 more source

Catalytic Reduction of Bisulfite by Myoglobin/Surfactant Films [PDF]

, 2017
The voltammetry of bisulfite at a film formed with myoglobin was studied in aqueous solutions. A broad wave was observed for the reduction of bisulfite.
Abdellatty, Radalla, Rahman, Md. Hafizur, Ryan, Michael D.   +2 more
core   +1 more source

Co3O4 Nanocrystals on Graphene as a Synergistic Catalyst for Oxygen Reduction Reaction

, 2011
Catalysts for oxygen reduction and evolution reactions are at the heart of key renewable energy technologies including fuel cells and water splitting.
AA Gewirth, AJ Bard, AJ Bard, AJ Esswein, C Nethravathi, CWB Bezerra, D Long, DG Nocera, F Bidault, FA Cotton, G Chen, H Meng, H Wang, H Wang, Hailiang Wang, HL Wang, Hongjie Dai, JG Zhou, JG Zhou, Jian Wang, Jigang Zhou, JS Spendelow, K Gong, KJJ Mayrhofer, L Qu, L-S Zhang, M De Koninck, M Lefevre, M Piana, M Winter, MW Kanan, NS Lewis, R Bashyam, R Liu, S Escribano, S Trasatti, TC Rojas, Tom Regier, TS Olson, UA Paulus, V Mehta, W Jin, Y Dong, Y Gorlin, Y Li, Yanguang Li, Yongye Liang, YY Liang   +47 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

High effective catalyst based on Ni doped TiO2 coated natural cotton fibers for catalytic reduction of organic pollutants

Journal of Natural Fibers, 2022
A new type of nickel doped titanium oxide (Ni-TiO2) coated natural cotton fibers (CF) and Ni-TiO2 wrapped sodium alginate (Alg) hydrogel was developed for the efficient reduction of different contaminants.
Kalsoom Akhtar, Sher Bahadar Khan, Esraa M. Bakhsh, Abdullah M. Asiri   +3 more
doaj   +1 more source

Pyrolysis-catalytic reforming/gasification of waste tires for production of carbon nanotubes and hydrogen [PDF]

, 2015
The production of high-value carbon nanotubes and hydrogen from the two-stage pyrolysis catalytic-steam reforming/gasification of waste tires have been investigated. The catalysts used were Co/Al₂ O₃ , Cu/Al₂ O₃ , Fe/Al₂ O₃ and Ni/Al₂ O₃ .
Nahil, Mohamad A., Williams, Paul, Wu, Chunfei, Zhang, Yeshui   +3 more
core   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Rapid Water Reduction to H_2 Catalyzed by a Cobalt Bis(iminopyridine) Complex [PDF]

, 2011
A cobalt bis(iminopyridine) complex is a highly active electrocatalyst for water reduction, with an estimated apparent second order rate constant k_(app) ≤ 10^7 M^(–1)s^(–1) over a range of buffer/salt concentrations.
Gray, Harry B., Peters, Jonas C., Stubbert, Bryand D.   +2 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Nitrate Catalytic Reduction over Bimetallic Catalysts: Catalyst Optimization

C, 2020
The catalytic removal of nitrate (NO3−) in water using hydrogen as a reducing agent was studied using palladium-copper bimetallic catalysts in different supports. Commercial carbon nanotubes (CNTs), used as received and with different mechanical (CNT (BM
A. Sofia G. G. Santos, João Restivo, Carla A. Orge, M. Fernando R. Pereira, O. Salomé G. P. Soares   +4 more
doaj   +1 more source