Results 141 to 150 of about 3,062,144 (293)

Improvement in protein separation using a modulated bipolar membrane chromatography technique

Journal of Chromatography Open
This paper discusses a novel method for improving resolution in protein separation obtained by membrane chromatography. The method is based on a bipolar membrane system involving the synergistic combination of a modulating membrane and a binding membrane
Raja Ghosh
doaj   +1 more source

Novel Crosslinked Sulfonated PVA/PEO Doped with Phosphated Titanium Oxide Nanotubes as Effective Green Cation Exchange Membrane for Direct Borohydride Fuel Cells. [PDF]

Polymers (Basel), 2021
Gouda MH, Elessawy NA, Toghan A.
europepmc   +1 more source

Increasing Lipid Nanoparticle mRNA Copy Number Improves Transfection Potency

Advanced Materials, EarlyView.
As lipid nanoparticle (LNP) systems are the leading platform for in vivo nucleic acid delivery, improving transfection potency of these systems is of considerable interest. In this work, we explored a post‐mixing formulation method involving a two‐step buffer exchange that increased the number of mRNA copies within each LNP while reducing the number of
Yao Zhang, Jerry Leung, Judy Cheng, Arash Momeni, Albert Kamanzi, Ariadne Tuckmantel Bido, Suiyang Liao, Emma Kang, Colton Strong, Christian J. Kastrup, Sabrina Leslie, Miffy Hok Yan Cheng, Pieter R. Cullis   +12 more
wiley   +1 more source

In Situ Formation of a Highly Selective Nickel Single Atom Catalyst for Electrochemical CO2 Reduction to CO

Advanced Materials, EarlyView.
Development of a novel method for synthesizing Ni single atom catalysts for highly selective electrochemical CO2 reduction in situ. This catalyst achieves 100% selectivity for CO and is formed in an industrially relevant cell architecture. Using post‐mortem XRD, STEM, and EDS and operando XAS, the identity of the active site and the mechanism behind ...
Ian Street, Venkata Sai Sriram Mosali, Noah Sandberg, Fengyuan Shi, Deborah Myers, William E. Mustain   +5 more
wiley   +1 more source

Mathematical Modeling of Cation Contamination in a Proton-exchange Membrane [PDF]

, 2009
Transport phenomena in an ion-exchange membrane containing both H+ and K+ are described using multicomponent diffusion equations (Stefan-Maxwell). A model is developed for transport through a Nafion 112 membrane in a hydrogen-pump setup.
Weber, Adam
core  

Pulsed Oxidative–Reductive Electrolysis Over Dual Cu and Co Single‐Atom Sites for Urea Electrosynthesis

Advanced Materials, EarlyView.
Alternating oxidative–reductive pulses synchronize CO2‐derived *CO and NH3‐derived *NHx intermediates over dual Cu and Co single‐atom sites, enabling urea and ethyl urea formation with a total C─N Faradaic efficiency of 42 ± 4%. In situ spectroscopy and theoretical calculations elucidate complementary Cu and Co functions, while oxidative controls ...
Putri Ramadhany, Peiqi Qiu, Thành Trần‐Phú, Denny Gunawan, Bernt Johannessen, Rosalie K. Hocking, Yan Jiao, Rose Amal, Rahman Daiyan   +8 more
wiley   +1 more source

Denitrification using immersed membrane bioreactors

, 2008
Nitrate is practically ubiquitous in waters abstracted for municipal potable water production in Europe due to decades of intensive agricultural practice.
McAdam, Ewan J.
core   +3 more sources

Experimental study of operating parameters in zero-gap CO2 electrolysis

Frontiers in Catalysis
Electrochemical CO2 reduction represents a promising approach for mitigating carbon emissions while generating value-added fuels and chemicals. While catalyst design mainly dictates activity and product selectivity, system-level performance is strongly ...
Siyu Zhong, Ilyes Ait Aissa, Gen Huang, Peter Holtappels, Sijia Liu, Roland Dittmeyer   +5 more
doaj   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Mathematical Modeling of Cation Contamination in a Proton-exchange Membrane [PDF]

, 2008
Transport phenomena in an ion-exchange membrane containing both H+ and K+ are described using multicomponent diffusion equations (Stefan-Maxwell). A model is developed for transport through a Nafion 112 membrane in a hydrogen-pump setup.
Weber, Adam, Delacourt, Charles
core