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Phosphorescence in Biological News

8 National Medals of Science awardees to be honored at gala, then the White House

...ures. The El-Sayed group has also been involved in the development of new techniques such as magnetophoto selection, picosecond Raman spectroscopy and phosphorescence microwave double resonance spectroscopy. El-Sayed earned his doctoral degree from Florida State University and his bachelor of science degree at E...

Biophysical Society announces 2008 International Travel Awards

... Gusztav Schay, Semmelweis University, Budapest, Hungary, The Role of Collective, Ms Timescale Dynamics in the Regulation of Multi-domain Proteins: A phosphorescence Approach. Feride Severcan, Middle East Technical University, Ankara, Turkey, The Investigation of Ionizing Radiation- Induced Damages on Liver M...
Phosphorescence in Biological Technology

Cyclodextrin enhances room temperature phosphorescence

Abstract Cyclodextrin-enhanced room-temperature phosphorescence (CD-RTP) is an analytical technique that offers well-resolved spectra and subpicogram detection limits. When polynuclear aromatic hydrocarbons (PAHs) are included in cyclodextrin molecules in the presence...

New solar energy material captures every color of the rainbow

...uoresce as some solar cell materials do. They phosphoresced as well. Both luminous effects are caused by a material absorbing and emitting energy, but phosphorescence lasts much longer. To their surprise, the chemists found that the new material was emitting electrons in two different energy states -- one called ...

Phosphorescence lifetime measured using the SPEX phosphorimeter

...nm from the peptide disappears, isolating the Tb phosphorescence at 486 and 540 nm. Figure 2 shows fluorescence f...uorescein-lacking solutions, showing fluorescein phosphorescence at 511 nm caused by energy transf...nce of fluorescein (τ = 3.0 ms). The faster phosphorescence decay in the presence of fluorescein (curve 4-b)...

Screening and classifying hazardous waste samples

...pectra were included.

Figure 9 shows a spectral comparison of PCB samples acquired at 77 K, where the emission intensity is greater for phosphorescence than fluorescence. Low-temperature analysis is considerably more sensitive, allowing quantification in the ppb range. For field-screening in the ppm r...

Kinetic determination of vitamin B1

... have good sensitivity and selectivity. Introduction Luminescent substances are quantified readily by sensitive fluorescence and phosphorescence techniques. Kinetic fluorescent methods extend the sensitivity advantage of fluorescence analysis to non-fluorescing samples that can be converted che...
Phosphorescence in Biological Products

LS 45 Luminescence Spectrometer, 230V from PerkinElmer

Description:...applications, the LS 55 offers the most powerful and flexible system for data collection and analysis. Measurement Modes for the LS 55: Fluorescence, phosphorescence and bio- and chemi-luminescence measurement modes. • Excitation, emission, constant wavelength synchronous, and constant energy synchronous spect...
Company:PerkinElmer

LS 45 Luminescence Spectrometer, 120V from PerkinElmer

Description:...applications, the LS 55 offers the most powerful and flexible system for data collection and analysis. Measurement Modes for the LS 55: Fluorescence, phosphorescence and bio- and chemi-luminescence measurement modes. • Excitation, emission, constant wavelength synchronous, and constant energy synchronous spect...
Company:PerkinElmer
Phosphorescence in Biological Dictionary

Rhodopsin

.... SOLUTION STRUCTURE OF 2ND INTRADISKAL LOOP OF BOVINE RHODOPSIN (RESIDUES 172-205) ... Rhodopsin and the eye. Basics behind Dyes and Pigments. phosphorescence and Fluorescence ... However, Rhodopsin is destroyed by bleaching on exposure to light ... The European ... The photoreceptor rhodopsin is a co...
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