Results 31 to 40 of about 4,164,744 (312)

Direct Measurement of Room-Temperature Nondiffusive Thermal Transport Over Micron Distances in a Silicon Membrane [PDF]

open access: yes, 2012
The “textbook” phonon mean free path of heat carrying phonons in silicon at room temperature is ∼40  nm. However, a large contribution to the thermal conductivity comes from low-frequency phonons with much longer mean free paths.
Cuffe, John   +18 more
core   +1 more source

Styrylpyridinium Derivatives as New Potent Antifungal Drugs and Fluorescence Probes

open access: yesFrontiers in Microbiology, 2020
The incidence of Candida glabrata infections increases every year due to its higher resistance to commonly used antifungal drugs. We characterized the antifungal mechanism of action of eight new styrylpyridinium derivatives, with various N-alkyl chains (-
Simona Vaitkienė   +3 more
doaj   +1 more source

Single-channel measurements of an N-acetylneuraminic acid-inducible outer membrane channel in Escherichia coli [PDF]

open access: yes, 2012
NanC is an Escherichia coli outer membrane protein involved in sialic acid (Neu5Ac, i.e., N-acetylneuraminic acid) uptake. Expression of the NanC gene is induced and controlled by Neu5Ac. The transport mechanism of Neu5Ac is not known.
Peneff, Caroline M.   +4 more
core   +1 more source

A novel method for the accurate characterization of transport and structural parameters of deformable membranes utilized in pressure- and osmotically driven membrane processes [PDF]

open access: yes, 2021
Membrane deformation is a common phenomenon in pressurized membrane processes. It alters the transport and structural characteristics of membranes and hence can lead to a lower than estimated process performance.
Peters, Christian D.   +7 more
core   +1 more source

Coexistence of Ammonium Transporter and Channel Mechanisms in Amt-Mep-Rh Twin-His Variants Impairs the Filamentation Signaling Capacity of Fungal Mep2 Transceptors

open access: yesmBio, 2022
Ammonium translocation through biological membranes, by the ubiquitous Amt-Mep-Rh family of transporters, plays a key role in all domains of life. Two highly conserved histidine residues protrude into the lumen of the pore of these transporters, forming ...
Gordon Williamson   +10 more
doaj   +1 more source

The Roles of Membrane Rafts in CD32A-Mediated Phagocytosis [PDF]

open access: yes, 2007
Membrane rafts are highly dynamic heterogeneous sterol- and sphingolipid-rich micro-domains on cell surfaces. They are generally believed to provide residency for cell surface molecules (e.g., adhesion and signaling molecules) and scaffolding to ...
Periasamy Selvaraj   +2 more
core   +1 more source

Translocation and insertion of precursor proteins into isolated outer membranes of mitochondria [PDF]

open access: yes, 1993
Nuclear-encoded proteins destined for mitochondria must cross the outer or both outer and inner membranes to reach their final sub- mitochondrial locations. While the inner membrane can translocate preproteins by itself, it is not known whether the outer
W Neupert   +5 more
core   +2 more sources

AQP3 and AQP5 Modulation in Response to Prolonged Oxidative Stress in Breast Cancer Cell Lines

open access: yesAntioxidants
Aquaporins are membrane pores regulating the transport of water, glycerol, and other small molecules across membranes. Among 13 human aquaporins, six have been shown to transport H2O2 and are therefore called peroxiporins.
Monika Mlinarić   +5 more
doaj   +1 more source

Membrane transporters

open access: yesEuropean Journal of Pharmaceutical Sciences, 2000
Carrier-mediated drug transport is relatively unexplored in comparison with passive transcellular and paracellular drug transport. Yet, there is a host of transporter proteins that can be targeted for improving epithelial drug absorption. Generally, these are transport mechanisms for amino acids, dipeptides, monosaccharides, monocarboxylic acids ...
openaire   +2 more sources

Lipopolysaccharide is inserted into the outer membrane through an intramembrane hole, a lumen gate, and the lateral opening of LptD [PDF]

open access: yes, 2015
C.D. is a recipient of the Wellcome Trust New Investigator Award. P.J.S. is supported by BBSRC grant BB/I019855/1 and W.W. is supported by China Natural Science Foundation of Guangdong Province grant (S2013010016539).
Stansfeld, P.   +11 more
core   +1 more source

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