Results 101 to 110 of about 99,563 (273)

Applications of fluorescence spectroscopy in protein conformational changes and intermolecular contacts

open access: yesBBA Advances, 2023
Emission fluorescence is one of the most versatile and powerful biophysical techniques used in several scientific subjects. It is extensively applied in the studies of proteins, their conformations, and intermolecular contacts, such as in protein-ligand ...
Fábio Henrique dos Santos Rodrigues   +3 more
doaj  

Structure and Dynamics of Poly(methacrylic acid) and Its Interpolymer Complex Probed by Covalently Bound Rhodamine-123 [PDF]

open access: yesarXiv, 2015
The dynamics and structural characteristics of polymethacrylic acid bound rhodamine-123 (PMAAR123) and its interpolymer complex with poly(vinylpyrrolidone) were investigated using single molecular fluorescence studies. The time resolved fluorescence anisotropy decay of PMAA-R123 at different pH exhibits an associated anisotropy decay behavior ...
arxiv  

Reynolds-number effects and anisotropy in transverse-jet mixing [PDF]

open access: yes, 2006
Experiments are described which measured concentration fields in liquid-phase strong transverse jets over the Reynolds-number range 1.0×10^3 ≤ Rej ≤ 20×10^3. Laser-induced-fluorescence measurements were made of the jet-fluid-concentration fields at a jet-
Dimotakis, Paul E., Shan, Jerry W.
core   +1 more source

Integration of Perovskite/Low‐Dimensional Material Heterostructures for Optoelectronics and Artificial Visual Systems

open access: yesAdvanced Functional Materials, EarlyView.
Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du   +11 more
wiley   +1 more source

Time-Resolved Down-Conversion of 2-Aminopurine in a DNA Hairpin: Fluorescence Anisotropy and Solvent Effects

open access: yesEPJ Web of Conferences, 2013
Femtosecond fluorescence anisotropy decay measured by type II difference frequency generation provides new insight into the local structural dynamics of ΔP(-)PBS fragments of the HIV- 1 DNA primary binding sequence, labeled with 2-aminopurine.
Crégut Olivier   +4 more
doaj   +1 more source

Theoretical Study of Time-Resolved Fluorescence Anisotropy from Coupled Chromophore Pairs [PDF]

open access: yesarXiv, 1994
Calculations of time-resolved fluorescence anisotropy from a pair of chromophores coupled by an excitation transfer interaction are presented. For the purpose of investigating the effects of nuclear motion on the energy transfer and anisotropy, an illustrative model is developed that provides each chromophore with a single intramolecular vibrational ...
arxiv  

The ATPase cycle of PcrA helicase and its coupling to translocation on DNA. [PDF]

open access: yes, 2009
The superfamily 1 bacterial helicase PcrA has a role in the replication of certain plasmids, acting with the initiator protein (RepD) that binds to and nicks the double-stranded origin of replication.
Martinez-Senac, Maria M   +3 more
core   +1 more source

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee   +9 more
wiley   +1 more source

The use of NADH anisotropy to investigate mitochondrial cristae alignment

open access: yesScientific Reports
Life may be expressed as the flow of electrons, protons, and other ions, resulting in large potential difference. It is also highly photo-sensitive, as a large proportion of the redox capable molecules it relies on are chromophoric. It is thus suggestive
Holly. E. Smith   +10 more
doaj   +1 more source

Measuring quantitative effects of methylation on transcription factor-DNA binding affinity [PDF]

open access: yes, 2017
We describe a new method for measuring the effects of epigenetic marks on protein-DNA interactions.
Chang, Yiming Kenny   +4 more
core   +2 more sources

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