Results 231 to 240 of about 70,358 (296)

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

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Proton conduction in phosphatidylethanolamine

Chemistry and Physics of Lipids, 1977
The dc conductivity of polycrystalline phosphatidylethanolamine (PE) was measured in the temperature range 60-120 degrees C. Since no conclusive evidence had so far been obtained for the presence of proteon conduction in this phospholipid, hydrogen gas was shown in the present experiment to evolve during the electrolysis in its premelted state between ...
N, Murase, K, Gonda, I, Kagami, S, Koga
openaire   +2 more sources

Proton-Conducting Glass Electrolyte

Analytical Chemistry, 2007
A new porous glass electrolyte consisting of heteropolyacids, i.e., phosphotungstic acid (PWA) and phosphomolybdic acid, was investigated and was found to yield a remarkably high proton conductivity of 1.014 S cm(-1) at 30 degrees C and 85% relative humidity.
Thanganathan, Uma, Masayuki, Nogami
openaire   +2 more sources

Anhydrous Proton-Conducting Polymers

Annual Review of Materials Research, 2003
▪ Abstract  Anhydrous proton-conducting polymers usually consist of a more or less inert polymer matrix that is swollen with an appropriate proton solvent (in most cases, phosphoric acid). An outline of the different materials is provided, with a focus on PBI/H3PO4 blends that are currently most suitable for fuel cell applications.
Schuster, M., Meyer, W.
openaire   +2 more sources

Proton-Conducting Oxides

Annual Review of Materials Research, 2003
▪ Abstract  The structural and chemical parameters determining the formation and mobility of protonic defects in oxides are discussed, and the paramount role of high-molar volume, coordination numbers, and symmetry are emphasized. Symmetry also relates to the structural and chemical matching of the acceptor dopant.
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Proton‐Conducting Magnetic Coordination Polymers

Chemistry – A European Journal, 2015
AbstractThree isostructural lanthanide‐based two‐ dimensional coordination polymers (CPs) {[Ln2(L)3(H2O)2]n⋅2n CH3OH)⋅2n H2O} (Ln=Gd3+ (1), Tb3+ (2), Dy3+ (3); H2L=cyclobutane‐1,1‐dicarboxylic acid) were synthesized by using a low molecular weight dicarboxylate ligand and characterized.
Soumava, Biswas, Himanshu Sekhar, Jena, Suresh, Sanda, Sanjit, Konar   +3 more
openaire   +2 more sources

Proton diffusion in proton conducting oxides

Phase Transitions, 1996
Abstract Quasielastic neutron scattering was used to study the atomistic proton diffusion mechanism in Yb-doped SrCeO3, a proton conducting perovskite, simultaneously in space and time. Proton diffusion consists of a sequence of trapping and free diffusion events.
R. Hempelmann, Ch. Karmonik
openaire   +1 more source

Proton-conducting crystalline porous materials

Chemical Society Reviews, 2017
This review summarizes the emerging studies of proton-conducting materials, and discusses the synthetic strategies and possible mechanisms, identifying key structural factors.
Xing, Meng, Hai-Ning, Wang, Shu-Yan, Song, Hong-Jie, Zhang   +3 more
openaire   +2 more sources

Proton conduction in discotic mesogens

Chemical Communications, 2011
We show that discotic mesogens can be used to lower the activation energy barrier for proton transport.
Dipankar, Basak, Scott, Christensen, Sravan K, Surampudi, Craig, Versek, Daniel T, Toscano, Mark T, Tuominen, Ryan C, Hayward, D, Venkataraman   +7 more
openaire   +2 more sources

Proton conductance of cell membranes

Journal of Theoretical Biology, 1973
Abstract Several workers have suggested that cell membranes have a high proton conductance. Our interest in this concept arose from the possibility that the nutrient (submucosal-facing) membrane of the gastric mucosa may have a high proton or hydroxyl ion conductance which would play a role in the regulation of the acid-base balance of the cell.
W S, Rehm, S S, Sanders, R L, Shoemaker, J, O'Callaghan, J T, Tarvin, E A, Friday   +5 more
openaire   +2 more sources