Results 11 to 20 of about 36,100 (258)

Model of diffusion-assisted direct laser writing by means of nanopolymerization in the presence of radical quencher

open access: yesAIP Advances, 2015
Diffusion-assisted direct laser writing (DA-DLW) by multiphoton polymerization has been recently shown to be one of the most promising methods for the high-resolution 3D nanofabrication [I. Sakellari, et al., ACS Nano 6, 2302 (2012)].
Alexander Pikulin   +2 more
doaj   +2 more sources

Using Lifetime and Quenching Rate Constant to Determine Quencher Concentration

open access: yes, 2022
Excited state quenching is a key step in photochemical reactions that involve energy or electron transfer. High reaction quantum yields require sufficiently high concentrations of quencher to ensure efficient quenching.
Xena, Soto, John, Swierk
core   +1 more source

Biosensing using hairpin DNA probes

open access: yesReviews in Analytical Chemistry, 2015
Hairpin DNA probes (HDPs) are specially designed single-stranded DNA and have excellent sensing specificity. The past decade has witnessed the fast development of HDP-based biosensors due to the tremendous applications in biology, medicine, environmental
Huang Jiahao, Wu Jueqi, Li Zhigang
doaj   +1 more source

Rapid detection of SARS-CoV-2 genetic targets using nanoporous waveguide based competitive displacement assay

open access: yesGiant, 2023
Rapid detection of unlabeled SARS-CoV-2 genetic target was demonstrated using a competitive displacement hybridization assay made by a nanostructured anodized alumina oxide (AAO) membrane.
Megan Makela, Zhihai Lin, Pao Tai Lin
doaj   +1 more source

Formation and Fluorimetric Characterization of Micelles in a Micro-flow Through System with Static Micro Mixer

open access: yesSensors, 2007
The formation and behaviour of micelles of sodium dodecylsulfate in water byuse of a static micro mixer were studied. Trisbipyridylruthenium(II) was applied asindicator dye, 9-methylanthracene was used for fluorescence quenching.
J. Michael Köhler   +2 more
doaj   +1 more source

Synthesis of Ruthenium Bipyridyl Linked with Steroidal Oxidative Quencher for Photo Redox Studies

open access: yes, 2020
: Synthesis of ruthenium bipyridyl linked with steroid having oxidative quencher, viologens for study of photo redox properties were described.
Sudershan Reddy, Gondi
core   +1 more source

Exploiting Long-Lived Molecular Fluorescence

open access: yesCHIMIA, 2003
Fluorophores based on the azo chromophore 2,3-diazabicyclo[2.2.2]oct-2-ene, referred to as fluorazophores, display an exceedingly long fluorescence lifetime.
Werner M. Nau   +5 more
doaj   +1 more source

FRET-Based Quantum Dot Immunoassay for Rapid and Sensitive Detection of Aspergillus amstelodami

open access: yesSensors, 2011
In this study, a fluorescence resonance energy transfer (FRET)-based quantum dot (QD) immunoassay for detection and identification of Aspergillus amstelodami was developed.
Michele D. Kattke   +4 more
doaj   +1 more source

RNase H Polymerase-independent Cleavage Assay for Evaluation of RNase H Activity of Reverse Transcriptase Enzymes

open access: yesBio-Protocol, 2015
The ribonuclease H (RNase H) polymerase-independent cleavage assay allows detection and quantification of RNase H activity of reverse transcriptase (RT) enzymes with a hybrid substrate formed by a fluorescein labeled RNA annealed with Dabcyl DNA (Figure ...
Angela Corona, Enzo Tramontano
doaj   +1 more source

In Vitro Cultures of Some Medicinal Plant Species (Cistus × incanus, Verbena officinalis, Scutellaria lateriflora, and Scutellaria baicalensis) as a Rich Potential Source of Antioxidants—Evaluation by CUPRAC and QUENCHER-CUPRAC Assays

open access: yesPlants, 2021
Comparative estimations of the antioxidant activity of methanolic extracts from biomasses of different types of in vitro cultures of Cistus × incanus, Verbena officinalis, Scutellaria lateriflora, and S. baicalensis and also from plant raw materials were
Michał Dziurka   +9 more
doaj   +1 more source

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