Results 21 to 30 of about 1,076,396 (297)

Carbon Quantum Dots’ Synthesis with a Strong Chemical Claw for Five Transition Metal Sensing in the Irving–Williams Series

Nanomaterials, 2022
Carbon quantum dots (CQDs) are an excellent eco-friendly fluorescence material, ideal for various ecological testing systems. Herein, we establish uniform microwave synthesis of the group of carbon quantum dots with specific functionalization of ...
Anastasia Yakusheva, Anastasia Sayapina, Lev Luchnikov, Dmitry Arkhipov, Gopalu Karunakaran, Denis Kuznetsov   +5 more
doaj   +1 more source

A Sensitive Aptamer Fluorescence Anisotropy Sensor for Cd²⁺ Using Affinity-Enhanced Aptamers with Phosphorothioate Modification

Biosensors, 2022
Rapid and sensitive detection of heavy metal cadmium ions (Cd2+) is of great significance to food safety and environmental monitoring, as Cd2+ contamination and exposure cause serious health risk.
Hao Yu, Qiang Zhao
doaj   +1 more source

Polarized fluorescent nanospheres

Optics Express, 2010
Fluorescent beads (nanoparticles, nanospheres) are commonly used in fluorescence spectroscopy and microscopy. Due to the random distribution of dye and high dye to nanoparticle ratio, the fluorescence polarization observed from the beads is low. Therefore beads are not used for polarization study.
Rafał Luchowski, Gryczynski, Z., Földes-Papp, Z., Chang, A., Borejdo, J., Sarkar, P., Gryczynski, I.   +6 more
openaire   +2 more sources

Fluorescence characterization of clinically-important bacteria [PDF]

, 2013
Healthcare-associated infections (HCAI/HAI) represent a substantial threat to patient health during hospitalization and incur billions of dollars additional cost for subsequent treatment.
Jan-Peter Muller, Brody, James P, Roberts Tom A., Lewis R Dartnell, Dartnell, Lewis R., Muller, J-P., Muller, J.P., Tom A Roberts, Muller, JP, Moore, G, Roberts, T.A., Dartnell Lewis R., Ginny Moore, Moore, Ginny, Dartnell, LR, Ward, J.M., Muller Jan-Peter, Moore Ginny, Ward, John M., Moore, G., Ward John M., Roberts, Tom A., Ward, JM, Roberts, TA, Dartnell, L.R., John M Ward   +25 more
core   +2 more sources

Monitoring Labeling Reactions Using Fluorescence Polarization

CHIMIA, 2013
Fluorescence techniques are widely applied in protein research owing to their specificity and sensitivity, but require prior fluorescent labeling.
Yvan Crittin, Julien Héritier, Jean-Manuel Segura   +2 more
doaj   +1 more source

Fluorescence polarization immunoassay for zidovudine [PDF]

Antimicrobial Agents and Chemotherapy, 1989
We report a fluorescence polarization immunoassay (FPIA) for zidovudine (azidothymidine; Retrovir). This assay is accurate and specific over the clinically relevant range of zidovudine concentrations in serum (from 1 to 1,250 ng/ml; from 0.004 to 4.8 microM) and is unaffected by potentially interfering compounds in the sera of patients with renal or ...
G G, Granich, M R, Eveland, D J, Krogstad   +2 more
openaire   +2 more sources

Structural Changes of Yellow Cameleon Domains Observed by Quantitative FRET Analysis and Polarized Fluorescence Correlation Spectroscopy [PDF]

, 2008
Förster resonance energy transfer (FRET) is a widely used method for monitoring interactions between or within biological macromolecules conjugated with suitable donor-acceptor pairs.
Laptenok, S., Visser, N.V., Kalinin, S., Hornen, H., Hoek, A., van, Kühnemuth, R., Borst, J.W., van Hoek, A., Westphal, A.H., Aker, J., Aker, J.C.M., Kyhnemuth, R., Laptenok, S.P., Seidel, C.A.M., Visser, A.J.W.G.   +14 more
core   +1 more source

The Cytoscan (TM) model E-II, a new reflectance microscope for intravital microscopy: Comparison with the standard fluorescence method [PDF]

, 2000
The Cytoscan(TM) Model E-II (Cytometrics Inc., Philadelphia, Pa., USA) is a newly developed instrument which functions as an intravital microscope and is small and easily portable.
Sinitsina, I., Harris, A. G., Messmer, K.   +2 more
core   +1 more source

A fluorescence polarization flow cytometer [PDF]

Cytometry, 1980
AbstractThe effect of mitogens on the degree of polarization of the fluorescence from viable human lymphocytes, labeled with fluorescein, have been reported to be different in cells from subjects with malignant disease as compared with those from healthy donors.
J P, Keene, B W, Hodgson
openaire   +2 more sources

Advanced Fluorescence Microscopy Techniques-FRAP, FLIP, FLAP, FRET and FLIM [PDF]

, 2012
Fluorescence microscopy provides an efficient and unique approach to study fixed and living cells because of its versatility, specificity, and high sensitivity.
Ankerhold, Richard, Richard Ankerhold, Drummen, Gregor P. C., Gregor P. C. Drummen, Hellen C. Ishikawa-Ankerhold, Ishikawa-Ankerhold, Hellen C.   +5 more
core   +1 more source