Results 101 to 110 of about 33,730 (224)

U.S. DOE Progress Towards Developing Low-Cost, High Performance, Durable Polymer Electrolyte Membranes for Fuel Cell Applications

Membranes, 2012
Low cost, durable, and selective membranes with high ionic conductivity are a priority need for wide-spread adoption of polymer electrolyte membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs).
Dimitrios C. Papageorgopoulos, Reginald Tyler, Jason Marcinkoski, Kathi Epping Martin, Donna Lee Ho, Nancy L. Garland, David Peterson, John Kopasz, Jacob S. Spendelow, Greg J. Kleen, Cassidy Houchins   +10 more
doaj   +1 more source

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

Small, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira, Hiroshi Kamizawa, Yujiro Hamada, Wataru Fushimoto, Hiroshi Y. Yoshikawa, Yuji Higaki, Atsushi Takahara, Takeshi Mori, Yoshiki Katayama, Akihiro Kishimura   +9 more
wiley   +1 more source

A Second-Generation Janus Scorpionate Ligand: Controlling Coordination Modes in Iron(II) Complexes by Steric Modulation [PDF]

, 2008
The second-generation Janus scorpionate ligand [HB(mtdaMe)3−] containing methyl-mercaptothiadiazolyl (mtdaMe) heterocyclic rings and (N,N,N-) and (S,S,S-) binding pockets has been prepared. The effect of methyl substitution versus the unsubstituted first-
Gardinier, James R., Grandjean, Fernande, Gwengo, Chengeto, Lindeman, Sergey V., Long, Gary J., Silva, Rosalice M., Smith, Mark D.   +6 more
core   +1 more source

Metallic Axial Asymmetry in Dome‐Like Iron Porphyrins Boosts Advanced Oxidation Processes: Implication of Allosteric Effect of Heme Peroxidases

Small Structures, EarlyView.
A structure–activity relationship between dome‐deformation‐induced metallic axial asymmetry and catalytic efficiency in iron porphyrins was established, providing a molecular blueprint for designing high‐performance enzyme‐mimetic catalysts. The remarkable catalytic activity of heme enzymes originates from distinctive allosteric effects mediated by ...
Junhao Gao, Qiuhua Liu, Yusheng Zhang, Zhihong Fang, Wenping Guo, Zhenfang Zhang, Lei Bao, Tianyi Ma, Zaichun Zhou   +8 more
wiley   +1 more source

Proximity Engineering of Fe‒N4 Twins for Oriented Generation of Singlet Oxygen for Hospital Wastewater Treatment

Angewandte Chemie, Volume 138, Issue 12, 16 March 2026.
Precise modulation of Fe–N4 site distances constructs spin‐regulated Fe–N4 twins, triggering a volcano‐type Fenton‐like activity and promoting oriented singlet oxygen generation. The twin‐site catalyst enables highly selective and efficient hospital wastewater purification with simultaneous pharmaceutical degradation and disinfection under low ...
Xinhao Wang, Zhaokun Xiong, Shuai Yang, Hongyu Zhou, Yanbiao Shi, Zelin Wu, Bingkun Huang, Lei Yang, Chuan‐Shu He, Xiaoguang Duan, Bo Lai   +10 more
wiley   +2 more sources

Evaluation of ZrO2 Composite Membrane Operating at High Temperature (100 °C) in Direct Methanol Fuel Cells.

International Journal of Electrochemical Science, 2012
This study focuses on the effect of two different membranes, a Zirconium Dioxide composite membrane versus a commercial membrane (Nafion - 112) on the performance of a methanol fuel cell at high temperatures (100 °C).
C. Guzmán, A. Alvarez, Luís A. Godínez, J. Ledesma-García, L.G. Arríaga   +4 more
doaj   +1 more source

Strong tuning of Rashba spin orbit interaction in single InAs nanowires

, 2012
A key concept in the emerging field of spintronics is the gate voltage or electric field control of spin precession via the effective magnetic field generated by the Rashba spin orbit interaction.
Awschalom D. D., Bryllert T., Datta S., Dayeh S. A., Dayeh S. A., Dhara S., Dong Liang, Du J., Estévez Hernández S., Ford A. C., Gao X. P. A., Grundler D., Hansen A. E., Hao X. J., Jiang X., Knap W., Ko H., Koga T., Koo H. C., Liang D., Liang D., Lin P. A., Lu C., Mak K. F, Miller J. B., Nitta J., Petersen G., Quay C. H. L., Sakr M. R., Schroer M. D., SchäPers Th., Siddons G. P., Storm K., Weitz R. T., Wernersson L. E., Xuan P.A. Gao, Zutic I.   +36 more
core   +1 more source

Natural‐based antioxidants in cosmeceuticals: Extraction, bioavailability and skin ageing applications

International Journal of Cosmetic Science, EarlyView.
Natural antioxidants from plants, fruits, seeds and fungi combat ageing by neutralizing free radicals, boosting collagen and protecting against UV damage. Enhanced by green extraction and smart delivery systems, they offer powerful anti‐inflammatory and antimicrobial benefits.
Hossein Omidian, Arnavaz Akhzarmehr, Charise Dallazem Bertol   +2 more
wiley   +1 more source

Optimizing Methanol Flow Rate for Enhanced Semi-Passive Mini-Direct Methanol Fuel Cell Performance

Fuels
Direct methanol fuel cells (DMFCs) typically operate in passive mode, where methanol is distributed across the membrane electrode assembly through natural diffusion.
Laura Faria, Vicenta María Barragán
doaj   +1 more source

Comparative Pharmacokinetics of Intranasal or Intramuscular Atipamezole in Unsedated Dogs and Efficacy for Reversal of Xylazine Sedation

Journal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT The objectives of this study were to evaluate ATIP pharmacokinetics (PK) in healthy Beagle dogs after IM and IN dosing (Phase I), and to compare the rate of reversal of IM versus IN routes for xylazine (XYL) sedation (Phase II). This study was comprised of two sequential, randomized, crossover experiments. The initial PK study dosed ATIP by IN
Vanessa E. Cowan, Vanessa R. Mitcham, Deborah L. Michel, Chloe Lyons, Juliet Kennedy, Yoana C. Reyes Morales, Jennifer M. Loewen, Alan L. Chicoine   +7 more
wiley   +1 more source