Results 11 to 20 of about 262,730 (211)

Small-Molecule Analysis Based on DNA Strand Displacement Using a Bacteriorhodopsin Photoelectric Transducer: Taking ATP as an Example

open access: yesSensors, 2023
A uniformly oriented purple membrane (PM) monolayer containing photoactive bacteriorhodopsin has recently been applied as a sensitive photoelectric transducer to assay color proteins and microbes quantitatively.
Hsiu-Mei Chen   +2 more
doaj   +1 more source

Fusion of purple membranes triggered by immobilization on carbon nanomembranes

open access: yesBeilstein Journal of Nanotechnology, 2021
A freestanding ultrathin hybrid membrane was synthesized comprising two functional layers, that is, first, a carbon nanomembrane (CNM) produced by electron irradiation-induced cross-linking of a self-assembled monolayer (SAM) of 4′-nitro-1,1′-biphenyl-4 ...
René Riedel   +7 more
doaj   +1 more source

Structural studies of bacteriorhodopsin in BC era

open access: yesBiophysics and Physicobiology, 2023
It marked half a century since the discovery of bacteriorhodopsin two years ago. On this occasion, I have revisited historically important diffraction studies of this membrane protein, based on my recollections. X-ray diffraction and electron diffraction,
Mikio Kataoka
doaj   +1 more source

Histochemical study of the hepatic metacestodes in sheep infected with hydatidosis [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2023
This study aimed at detecting the liver histopathological changes of hydatid cysts sheep infestation. Seventeen sheep liver's samples, infested with hydatid cysts, were collected from the local butchers.
Buthaina H. Al-Sabawi   +2 more
doaj   +1 more source

Dermoscopic features of blue rubber bleb nevus syndrome

open access: yesIndian Journal of Paediatric Dermatology, 2023
Blue rubber bleb nevus syndrome (BRBNS) usually has a sporadic onset. It is characterized as blue to purple, soft, rubbery, compressible nodules over any region in the skin or mucous membrane.
Niraj Dhinoja   +2 more
doaj   +1 more source

Direct and Label-Free Determination of Human Glycated Hemoglobin Levels Using Bacteriorhodopsin as the Biosensor Transducer

open access: yesSensors, 2020
Glycated hemoglobin (HbA1c) levels are an important index for the diagnosis and long-term control of diabetes. This study is the first to use a direct and label-free photoelectric biosensor to determine HbA1c using bacteriorhodopsin-embedded purple ...
Ying-Chin Lin   +8 more
doaj   +1 more source

MALDI-TOF/MS analysis of archaebacterial lipids in lyophilized membranes dry-mixed with 9-aminoacridine

open access: yesJournal of Lipid Research, 2010
A method of direct lipid analysis by MALDI mass spectrometry in intact membranes, without prior extraction/separation steps, is described. The purple membrane isolated from the extremely halophilic archaeon Halobacterium salinarum was selected as model ...
Roberto Angelini   +3 more
doaj   +1 more source

Effect of Selenium Application on Growth, Antioxidative Capacity, and Nutritional Quality in Purple Lettuce Seedlings

open access: yesAgronomy, 2023
Selenium (Se) is involved in the growth and development of plants. More importantly, Se from plant foods is a primary source of Se intake for humans and animals. Improving the Se content in vegetables through biofortification is an effective way to solve
Sijie Huang   +6 more
doaj   +1 more source

Lipid-protein stoichiometries in a crystalline biological membrane: NMR quantitative analysis of the lipid extract of the purple membrane

open access: yesJournal of Lipid Research, 2002
The lipid/protein stoichiometries of a naturally crystalline biological membrane, the purple membrane (PM) of Halobacterium salinarum, have been obtained by a combination of 31P- and 1H-NMR analyses of the lipid extract.
Angela Corcelli   +4 more
doaj   +1 more source

Molecularly imprinted electrospun fiber membrane for colorimetric detection of hexanoic acid

open access: yese-Polymers, 2021
An imprinted electrospun fiber membrane was developed for the detection of volatile organic acids, which are key components of human body odor. In this study, hexanoic acid (HA) was selected as the target, polymethyl methacrylate (PMMA) was used as the ...
Ying Xiaoguang, He Jieyuan, Li Xiao
doaj   +1 more source

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