Results 101 to 110 of about 829,335 (326)

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Ultra-Thin SnS₂-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Nanomaterials, 2020
Transition-metal dichalcogenides (TMDs) materials have attracted much attention for hydrogen evolution reaction (HER) as a new catalyst, but they still have challenges in poor stability and high reaction over-potential.
Yanying Yu, Jie Xu, Jianwei Zhang, Fan Li, Jiantao Fu, Chao Li, Cuihua An   +6 more
doaj   +1 more source

Design of a Graphene Nitrene Two-Dimensional Catalyst Heterostructure Providing a Well-Defined Site Accommodating 1 to 3 Metals, with Application to CO₂ Reduction Electrocatalysis for the 2 Metal Case [PDF]

, 2020
Recently, the reduction of CO₂ to fuels has been the subject of numerous studies, but the selectivity and activity remain inadequate. Progress has been made on single-site two-dimensional catalysts based on graphene coupled to a metal and nitrogen for ...
Chen, Shiqian, Ge, Lei, Goddard, William A., III, Li, Li, Morozov, Sergey I., Xu, Lai, Yuan, Hao   +6 more
core   +1 more source

Chemistry of heavy elements in the Dark Ages [PDF]

, 2009
Primordial molecules were formed during the Dark Ages, i.e. the time between recombination and reionization in the early Universe. The purpose of this article is to analyze the formation of primordial molecules based on heavy elements during the Dark ...
Abel, Abel, Affleck, Applegate, Barkana, Basu, Basu, Bromm, Burles, C. Winteler, Ciardi, Cyburt, D. Puy, Dolgov, Dubrovich, Dunkley, Fall, Fendt, Field, Flower, Flower, Galli, Glover, Glover, Glover, Harwit, Hindmarsh, Hirata, Huntress, Jedamzik, Khlopov, Komatsu, Kompaneets, Le Bourlot, Lepp, Lepp, Lipovka, M. Signore, Maio, Malaney, Maoli, Maoli, Matsuura, Matsuura, Matsuura, McGreer, Molaro, Nagakura, Omukai, Omukai, P. Vonlanthen, Peebles, Peebles, Pfenniger, Puy, Puy, Puy, Puy, Puy, Péquignot, Rauscher, Ripamonti, Ripamonti, Saslaw, Schleicher, Shchekinov, Signore, Signore, Silk, Songaila, Songaila, Stancil, Stancil, Steigman, T. Rauscher, Tegmark, Uehara, Uehara, V. Dubrovich, Verner, Verner, Woodall, Yoshida   +82 more
core   +4 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

ATG4B is required for mTORC1‐mediated anabolic activity and is associated with clinical outcomes in non‐small cell lung cancer

FEBS Open Bio, EarlyView.
The relationship between anabolic and catabolic processes governing lung cancer cell growth is nuanced. We show that ATG4B, an autophagy regulator, is elevated in lung cancer and that high ATG4B is associated with worse patient outcomes. Targeting ATG4B in cells reduces growth, protein synthesis, and mTORC1 activity, demonstrating a new relationship ...
Patrick J. Ryan, Bethany C. Guerra, Selina Uranga, Jessica M. Cardin, Steven E. Riechman, Mariana Janini Gomes, James D. Fluckey   +6 more
wiley   +1 more source

Nickel Nanoparticles Infused Iron Tungstate Nanocomposite for Clean Energy Carrier Hydrogen Generation via Water Splitting

Advanced Materials Interfaces
Green hydrogen, as a renewable energy source with vast potential and multiple uses, will play a crucial role in the energy transition. This study focuses on improving clean energy production, specifically green hydrogen, through the synthesis and ...
Dasu Ram Paudel, Rama Kafle, Niraj Dhital, Manjinder Singh, Balaji S. Salokhe   +4 more
doaj   +1 more source

An Analysis of the Conceptual and Functional Factors Affecting the Effectiveness of Proton-Exchange Membrane Water Electrolysis

ChemEngineering
Hydrogen has the potential to decarbonize the energy and industrial sectors in the future, mainly if it is generated by water electrolysis. The proton-exchange membrane water electrolysis (PEMWE) system is regarded as a propitious technology to produce ...
Gaydaa AlZohbi
doaj   +1 more source

A New Spherical Catalyst For Hydrogen Evolution Reaction

Cumhuriyet Science Journal, 2018
CuFeZn composite catalysts have been prepared on the graphite electrodeby electrochemical deposition as electrocatalytic materials for hydrogenevolution reaction (HER). The etchingprocess was applied on catalysts in caustic solution to leach out zinc and
Murat Farsak
doaj   +1 more source

Effects of Surface Roughness on the Electrochemical Reduction of CO2 over Cu [PDF]

, 2020
We have investigated the role of surface roughening on the CO2 reduction reaction (CO2RR) over Cu. The activity and product selectivity of Cu surfaces roughened by plasma pretreatment in Ar, O2, or N2 were compared with that of electrochemically polished
Bell, AT, Goddard, WA, Huang, Y, Jiang, K, Toma, FM, Zeng, G   +5 more
core