|
Room temperature phosphorescence from tryptphan and halogenated tryptophan analogs in amorphous sucrose
Photochemistry and Photobiology; 8/1/1999; McCaul, Colin P; Ludescher, Richard D; 787 words
; ABSTRACT Tryptophan phosphorescence lifetime and quantum yield are ... to the local environment. The phosphorescence from tryptophan analogs, however ... data on the room temperature phosphorescence of tryptophan, 4-, 5- and 6 ...
Read more
|
|
Analysis of phosphorescence decay in heterogeneous systems: Consequences of finite excitation flesh duration
Photochemistry and Photobiology; 6/1/1999; Golub, Aleksander S; Popel, Aleksander S; Zheng, Lei; Pittman, Roland N; 787 words
; ABSTRACT Analysis of phosphorescence lifetimes using the SternVolmer ... the Stern-Volmer ratio of phosphorescence intensities cannot be employed ... The time-resolved analysis of phosphorescence or fluorescence decays using ...
Read more
|
|
A Review of Heavy-Atom-Induced Room-Temperature Phosphorescence: a Straightforward Phosphorimetric Method
Critical Reviews in Analytical Chemistry; 1/1/2005; Carretero, Antonio Segura; Castillo, Alfonso Salinas; Gutiérrez, Alberto Fernández; 787 words
; ... atom-induced, room-temperature phosphorescence (HAI-RTP), a new technique based ... triplet states and thus emit intense phosphorescence. Keywords heavy-atom-induced, room-temperature phosphorescence INTRODUCTION Luminescence is a ...
Read more
|
|
Characterization of F-Actin Tryptophan Phosphorescence in the Presence and Absence of Tryptophan-Free Myosin Motor Domain
Biophysical Journal; 8/1/2004; Bódis, Emoke; Strambini, Giovanni B; Gonnelli, Margherita; Málnási-Csizmadia, András; Somogyi, Béla; 787 words
; ... an analysis of steady-state tryptophan phosphorescence spectra and phosphorescence decay kinetics over a temperature range ... discoideum to actin caused red shifts in the phosphorescence spectrum of two internal Trp residues of ...
Read more
|
|
Hued afterglow: fingerprinting diamonds via phosphorescence.(This Week)
Science News; 1/12/2008; Perkins, Sid; 463 words
; The eerie phosphorescence displayed by a rare form of blue ... suggest. [ILLUSTRATION OMITTED] Phosphorescence, a glow-in-the-dark process in ... seconds and then measured its phosphorescence at various wavelengths. Reddish ...
Read more
|
|
Intramolecular Quenching of Tryptophan Phosphorescence in Short Peptides and Proteins¶
Photochemistry and Photobiology; 5/1/2005; Gonnelli, Margherita; Strambini, Giovanni B; 787 words
; ABSTRACT The phosphorescence lifetime (τ) of tryptophan ... and Phe are able to quench Trp phosphorescence at a detectable rate (k^sub obs ... in proteins that exhibit long phosphorescence lifetimes at ambient temperature ...
Read more
|
|
Quenching Platinum Octaethylporphine Phosphorescence in Solution by Poly(ferrocenylsilane)[dagger]
Photochemistry and Photobiology; 1/1/2006; Yang, Jian; Cyr, Paul W; Wang, Yishan; Soong, Ronald; Et al; 787 words
; ... platinum octaethylporphine (PtOEP) phosphorescence in toluene solution. The phosphorescence quenching process was interpreted in ... backbone is a good quencher for PtOEP phosphorescence. Quenching by the polymer involves ...
Read more
|
|
How to Detect Phosphorescence.(Brief Article)
R & D; 6/1/2001; Rozgus, Amara; 170 words
; ... minerals that fluoresce will at times also phosphoresce. Phosphorescence is luminescence that persists after removal of the exciting ... not very diagnostic for this reason. WEB RESOURCES FOR PHOSPHORESCENCE: www.chemchek.com http://mineralgalleries.com www.aaas ...
Read more
|
|
Finding fireworks in the water Microscopic single-celled algae called dinoflagellates cause phosphorescence
Bangor Daily News Bangor, ME; 7/30/2005; JEFF STROUT; 787 words
; ... get to Castine so I could go on a phosphorescence paddling tour. The minute I got in ... to head south ... What, you ask, is phosphorescence? It's dinoflagellates in the water ... called dinoflagellates. They cause phosphorescence. They emit light when they are disturbed ...
Read more
|
|
Protein in sugar films and in glycerol/water as examined by infrared spectroscopy and by the fluorescence and phosphorescence of tryptophan
Biophysical Journal; 9/1/2003; Wright, Wayne W; Guffanti, Gregory T; Vanderkooi, Jane M; 787 words
; ... optical (absorption, fluorescence, and phosphorescence) spectroscopy. Water is able to move ... or other factors is discussed. The phosphorescence yield for protein and model indole ... sensitive to the matrix glass transition. Phosphorescence emission spectra are resolved and ...
Read more
|