Results 21 to 30 of about 17,342 (214)
Let There be Light! Light as an Engine and Regulator in Synthetic Cells. [PDF]
Angew Chem Int Ed EnglCells are out‐of‐equilibrium systems that regulate their spatiotemporal features. In biomimetic synthetic cells, light offers a unique way for energizing and regulating events in space and time. This review explores the implementation of light‐responsive tools in synthetic cells to replicate biological functions and enable new bioinspired behaviors ...
Allen ME +5 more
europepmc +2 more sources
Femtosecond spectroscopy of the first events of the photochemical cycle in bacteriorhodopsin [PDF]
, 1985 The first steps in the photochemistry of bacteriorhodopsin (BR) are investigated with light pulses of 160 fs duration. Four samples are studied: (i) the purple membrane, (ii) deuterated purple membrane, (iii) BR trimers and (iv) BR monomers.
Kaiser, Wolfgang +4 more
core +1 more source
The Function of Gas Vesicles in Halophilic Archaea and Bacteria: Theories and Experimental Evidence
Life, 2012 A few extremely halophilic Archaea (Halobacterium salinarum, Haloquadratum walsbyi, Haloferax mediterranei, Halorubrum vacuolatum, Halogeometricum borinquense, Haloplanus spp.) possess gas vesicles that bestow buoyancy on the cells. Gas vesicles are also
Aharon Oren
doaj +1 more source
Advanced Electronic Materials, 2023 Four conjugated polymers are integrated with a bacteriorhodopsin D94N‐HmBRI in organic field‐effect transistors (OFETs) with the device architecture of doped Si bottom gate/SiO2 bottom electric/semiconducting polymer/Au electrodes/D94N‐HmBRI top ...
Pei‐Yu Chen +4 more
doaj +1 more source
Frontiers in Molecular Biosciences, 2021 Fundamental vibrations of the chromophore in the membrane protein bacteriorhodopsin (BR), a protonated Schiff base retinal, have been studied for decades, both by resonance Raman and by infrared (IR) difference spectroscopy.
Victor A. Lorenz-Fonfria +4 more
doaj +1 more source
Fusion of purple membranes triggered by immobilization on carbon nanomembranes
Beilstein 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
Bacteriorhodopsin folds through a poorly organized transition state. [PDF]
, 2014 The folding mechanisms of helical membrane proteins remain largely uncharted. Here we characterize the kinetics of bacteriorhodopsin folding and employ φ-value analysis to explore the folding transition state.
Bowie, James U +3 more
core +2 more sources
Cation binding by bacteriorhodopsin [PDF]
Proceedings of the National Academy of Sciences, 1985 We have found that extensively washed purple membrane has about 1 calcium and 3-4 magnesium ions bound per bacteriorhodopsin molecule. When these divalent cations are removed by any of a variety of means, the pigment changes its color from purple to blue (λ max ≈ 600 nm).
C H, Chang +3 more
openaire +2 more sources
Gels, 2023 We have previously demonstrated the potential of gelatin films as a memory device, offering a novel approach for writing, reading, and erasing through the manipulation of gelatin structure and bound water content. Here, we discovered that incorporating a
U-Ting Chiu +4 more
doaj +1 more source
Entropy, 2019 Transitions between enzyme functional states are often connected to conformational changes involving electron or proton transport and directional movements of a group of atoms.
Davor Juretić +2 more
doaj +1 more source