Results 261 to 270 of about 78,007 (304)

Confinement-Enhanced Luminescence in Protein–Gold Nanoclusters

The Journal of Physical Chemistry Letters, 2020
Confinement has profound effects on protein functions. Nanoscale probes for confinement or excluded volume interactions could help us understand how these interactions influence protein functions. This work reports on the increased luminescence of BSA-gold nanoclusters when confined.
Paul Roberts, Jeneh Karima Perry, Raj K. Gupta, Shashi P. Karna, Joelle Frechette   +4 more
openaire   +2 more sources

Thermally Stimulated Luminescence in Powdered Soy Proteins

Journal of Food Science, 2013
Abstract Heating powder isolated soy proteins (ISPs) in a N 2 environment produced thermally stimulated luminescence (TSL), in 2 major temperature regions, 50 to 250°C (region R1) and 250 to 350°C (region R2).
Dereje, Abdi, Muhammad S, Jahan, William L, Boatright, Benjamin M, Walters, Qingxin, Lei   +4 more
openaire   +2 more sources

Engineering of Highly Luminescent Lanthanide Tags Suitable for Protein Labeling and Time-Resolved Luminescence Imaging

Journal of the American Chemical Society, 2004
The synthesis of a new ligand LH(4) based on a glutamic acid skeleton bis-functionalized on its nitrogen atom by 6-methylene-6'-carboxy-2,2'-bipyridine chromophoric units is described. UV-vis spectrophotometric titrations revealed the formation of 1:1 M:L complexes with lanthanide(III) cations, and complexation of LH(4) with equimolar amounts of ...
WEIBEL N., CHARBONNIRE L. J., GUARDIGLI, MASSIMO, RODA, ALDO, ZIESSEL R.   +4 more
openaire   +2 more sources

Genetically engineered luminescent proteins in biosensing

SPIE Proceedings, 2006
Luminescent proteins originally isolated from marine or terrestrial organisms have played a key role in the development of several biosensing systems. These proteins have been used in a variety of applications including, immunoassays, binding assays, cell-based sensing, high throughput screening, optical imaging, etc.
Laura Rowe, Mark Ensor, Daniel Scott, Sapna Deo, Sylvia Daunert   +4 more
openaire   +1 more source

Protein-Induced Long Lifetime Luminescence of Nonmetal Probes

ACS Chemical Biology, 2011
Time-resolved luminometry-based assays have great potential for measurements in complicated biological solutions and living cells as the measured signal can be easily distinguished from nanosecond lifetime background fluorescence of organic compounds and autofluorescence of cells.
Erki, Enkvist, Angela, Vaasa, Marje, Kasari, Marie, Kriisa, Taavi, Ivan, Kadri, Ligi, Gerda, Raidaru, Asko, Uri   +7 more
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The chromophore of pholasin: A highly luminescent protein

Journal of Bioluminescence and Chemiluminescence, 1990
AbstractPholasin is the photoprotein extracted from the marine bivalve Pholas dactylus. It undergoes an oxidative chemiluminescent reaction to oxypholasin with superoxide anion, hypochlorite, peroxidases and other oxidants. Since the observed absorbance and chemiluminescent emission spectra of pholasin solutions cannot be brought about solely by the ...
T, Müller, A K, Campbell
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Luminescence of Polypeptides and Proteins

1971
It is frequently advantageous to consider the evolution of ideas and results when surveying a particular area of reseach since the early results often contain the fundamental outlines of a problem which subsequently become obscured by the later accumulation of detailed knowledge. The history of the development of protein fluorescence followed a logical
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An enzyme-coupled ultrasensitive luminescence assay for protein methyltransferases

Analytical Biochemistry, 2010
Epigenetic regulation through protein posttranslational modifications is essential in development and disease. Among the key chemical modifications is protein methylation carried out by protein methyltransferases (PMTs). Quantitative and sensitive PMT activity assays can provide valuable tools to investigate PMT functions.
Glorymar, Ibáñez, Jamie L, McBean, Yaritzy M, Astudillo, Minkui, Luo   +3 more
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Luminescent, bimetallic AuAg alloy quantum clusters in protein templates

Nanoscale, 2012
We report the synthesis of luminescent AuAg alloy quantum clusters (QCs) in bovine serum albumin (BSA), for the first time, with experimentally determined atomic composition. Mixing of the as-synthesized protein-protected Au and Ag clusters resulted in the formation of alloy AuAg clusters within the BSA.
Jyoti Sarita, Mohanty, P Lourdu, Xavier, Kamalesh, Chaudhari, M S, Bootharaju, N, Goswami, S K, Pal, T, Pradeep   +6 more
openaire   +3 more sources

[Luminescence quenching of UV-irradiated proteins].

Biofizika, 1977
Kinetic curves of paramagnetic centres accumulation and quenching of the luminescence of UV-irradiated proteins at 77 degrees K are compared. Initiation of luminescence of UV-irradiated proteins at the annealing of paramagnetic centres was studied. The luminescence of UV-irradiated proteins was shown to be quenched with the paramagnetic centres formed.
K M, L'vov, V P, Ovcharenko
openaire   +1 more source