Results 101 to 110 of about 276,058 (259)

Lipid thermotropic transitions in Triatoma infestans lipophorin.

open access: yesJournal of Lipid Research, 1988
The structure and lipid thermotropic transitions of highly purified lipophorin of Triatoma infestans were examined by several techniques: steady-state fluorescence polarization of 1,6-diphenyl-1,3,5-hexatriene (DPH), cis-parinaric acid (cis-PnA) and ...
J L Soulages, O J Rimoldi, R R Brenner
doaj  

Folate Measurement in Mammalian Tissues by Fluorescence Polarization

open access: yesPteridines, 2011
Measurement of folate in animal tissues is expensive and time-consuming. A fluorescence polarization assay has been developed that allows the rapid and inexpensive quantification of folate in various animal tissues.
Harry Martin, Comeskey Daniel
doaj   +1 more source

Avaliação das esterases sanguíneas na doença de Alzheimer.

open access: yesActa Médica Portuguesa, 1992
The aim of this work was to evaluate a possible correlation between erythrocyte acetylcholinesterase activity (AChE) and membrane fluidity expressed by fluorescence polarization of--1,6--diphenyl 1,3,5--hexatriene (DPH).
C Saldanha, T Quintão, C Garcia
doaj   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels

open access: yesAdvanced Functional Materials, EarlyView.
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco   +12 more
wiley   +1 more source

Fluorescence Polarization Assays for Organic Compounds in Food Safety

open access: yesFrontiers in Bioscience-Elite
Elevated concentrations of toxic organic compounds observed in food products pose serious dangers to human health. Both natural and artificial pollutants can cause food contamination.
Liliya I. Mukhametova, Sergei A. Eremin
doaj   +1 more source

Effect of Synchrotron Polarization in Grazing Incidence X-ray Fluorescence analysis [PDF]

open access: yesarXiv, 2014
Total reflection x-ray fluorescence (TXRF) spectroscopy has seen a remarkable progress over the past years. Numerous applications in basic and applied sciences prove its importance. The large spectral background which is a major detrimental factor in the conventional x-ray fluorescence technique, limits the element detection sensitivities of the ...
arxiv  

Biomimetic Nanomedicines Deliver Naringin for Enhanced Acute Liver Failure Therapy via Balanced Regulation of Hepatocyte Oxidative Stress and Kupffer Cell Inflammation

open access: yesAdvanced Functional Materials, EarlyView.
A biomimetic nanomedicine (RBLN) constructed by loading natural antioxidants to clinically used layered double hydroxide nanoparticles is surface coated with fresh or senescent red blood cell membrane for balanced drug delivery to hepatocytes and KCs, thereby simultaneously alleviating liver oxidant stress and inflammation for effective drug‐induced ...
Jiahui Shao   +8 more
wiley   +1 more source

Dsg2 ectodomain organization increases throughout desmosome assembly

open access: yesCell Adhesion & Migration
Desmosomes are intercellular junctions that regulate mechanical integrity in epithelia and cardiac muscle. Dynamic desmosome remodeling is essential for wound healing and development, yet the mechanisms governing junction assembly remain elusive.
William F. Dean   +5 more
doaj   +1 more source

A High-Throughput Assay for Monitoring Ubiquitination in Real Time

open access: yesFrontiers in Chemistry, 2019
Protein ubiquitination is a highly orchestrated process that controls diverse aspects of human biology. Dysregulation of this process can lead to various disease states including cancer, neurodegeneration, and autoimmunity.
Tyler G. Franklin, Jonathan N. Pruneda
doaj   +1 more source

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