Emission Intensity Enhancement for Iridium(III) Complex in Dimethyl Sulfoxide under Photoirradiation

2021 ◽  
Author(s):  
Shingo Hattori ◽  
Shuntaro Hirata ◽  
Kazuteru Shinozaki
Keyword(s):  
Dimethyl Sulfoxide ◽  
Emission Intensity ◽  
Intensity Enhancement

Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement

2019 ◽  
Vol 7 (9) ◽  
pp. 2596-2603 ◽  
Author(s):  
Xiaohui Li ◽  
Bojana Milićević ◽  
Miroslav D. Dramićanin ◽  
Xiping Jing ◽  
Qiang Tang ◽  
...  
Keyword(s):  
White Light ◽  
Emission Intensity ◽  
Single Component ◽  
Structural Variations ◽  
Intensity Enhancement ◽  
Luminescence Emission ◽  
Color Rendering

A single-component white phosphor was realized via Eu3+-Doping inside Sr3ZnTaO9(SZT). Eu3+-doping induces structural variations of SZT and its luminescence emission intensity is remarkably enhanced and color rendering is consequently improved.

Emission Intensity Enhancement of DC Arc Plasma Induced by External Oscillating Magnetic Field

2007 ◽  
Vol 47 (10) ◽  
pp. 670-676 ◽  
Author(s):  
M. M. Stoiljković ◽  
M. Pavlović ◽  
J. Savović ◽  
M. Kuzmanović
Keyword(s):  
Magnetic Field ◽  
Emission Intensity ◽  
Arc Plasma ◽  
Intensity Enhancement ◽  
Oscillating Magnetic Field ◽  
Dc Arc

BLUESHIFT AND INTENSITY ENHANCEMENT IN VISIBLE EMISSION SPECTRUM OF C-AXIS ORIENTED SPRAY PYROLYTICALLY GROWN NANOCRYSTALLINE ZnO THIN FILMS

2008 ◽  
Vol 15 (05) ◽  
pp. 551-556 ◽  
Author(s):  
M. JUNAID BUSHIRI ◽  
V. GOPAKUMAR ◽  
V. K. VAIDYAN
Keyword(s):  
Thin Films ◽  
Emission Intensity ◽  
Zno Thin Films ◽  
Spectral Studies ◽  
Spray Pyrolysis Method ◽  
Band Edge Emission ◽  
Local Defect ◽  
Oriented Growth ◽  
Oriented Sample ◽  
Intensity Enhancement

Highly (002)-oriented nanocrystalline ZnO thin films were deposited on glass substrates at a substrate temperature of 500°C in air atmosphere by low-cost spray pyrolysis method. Room temperature photoluminescence spectral studies show the presence of near band edge emission and defect level emission (DLE) from the samples. The DLE wavelength is blueshifted about 22 nm and further emission intensity enhancement is observed in (002)-oriented sample as compared to that of wurtzite ZnO phase. The modifications in local defect levels and change in crystalline symmetry are attributed to the blue shift in the DLE region of c-axis oriented sample. The increased emission intensity of (002)-oriented samples is due to improvement in crystalline quality, preferential oriented growth and spherical morphology of nanocrystalline grains.

The Effect of Dimethyl Sulfoxide on In Vitro Platelet Function

1976 ◽  
Vol 36 (01) ◽  
pp. 221-229 ◽  
Author(s):  
Charles A. Schiffer ◽  
Caroline L. Whitaker ◽  
Morton Schmukler ◽  
Joseph Aisner ◽  
Steven L. Hilbert
Keyword(s):  
Platelet Count ◽  
Platelet Aggregation ◽  
Dimethyl Sulfoxide ◽  
Platelet Function ◽  
Platelet Volume ◽  
Short Term ◽  
Platelet Factor ◽  
Short Term Exposure ◽  
Structural Abnormalities

SummaryAlthough dimethyl sulfoxide (DMSO) has been used extensively as a cryopreservative for platelets there are few studies dealing with the effect of DMSO on platelet function. Using techniques similar to those employed in platelet cryopreservation platelets were incubated with final concentrations of 2-10% DMSO at 25° C. After exposure to 5 and 10% DMSO platelets remained discoid and electron micrographs revealed no structural abnormalities. There was no significant change in platelet count. In terms of injury to platelet membranes, there was no increased availability of platelet factor-3 or leakage of nucleotides, 5 hydroxytryptamine (5HT) or glycosidases with final DMSO concentrations of 2.5, 5 and 10% DMSO. Thrombin stimulated nucleotide and 5HT release was reduced by 10% DMSO. Impairment of thrombin induced glycosidase release was noted at lower DMSO concentrations and was dose related. Similarly, aggregation to ADP was progressively impaired at DMSO concentrations from 1-5% and was dose related. After the platelets exposed to DMSO were washed, however, aggregation and release returned to control values. Platelet aggregation by epinephrine was also inhibited by DMSO and this could not be corrected by washing the platelets. DMSO-plasma solutions are hypertonic but only minimal increases in platelet volume (at 10% DMSO) could be detected. Shrinkage of platelets was seen with hypertonic solutions of sodium chloride or sucrose suggesting that the rapid transmembrane passage of DMSO prevented significant shifts of water. These studies demonstrate that there are minimal irreversible alterations in in vitro platelet function after short-term exposure to DMSO.

Preservation of Morphological Integrity and Clot Retraction Activity of Human Platelets After Freezing

1964 ◽  
Vol 11 (01) ◽  
pp. 222-229 ◽  
Author(s):  
Isaac Djerassi ◽  
Albert Roy ◽  
Jorge Alvarado ◽  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Liquid Nitrogen ◽  
Human Platelets ◽  
Slow Freezing ◽  
Critical Conditions ◽  
Plasma Medium ◽  
Clot Retraction ◽  
Controlled Freezing ◽  
Direct Immersion

SummaryHuman platelets frozen at −195° C (liquid nitrogen) retain their morphological integrity and ability to promote clot retraction when 5% dimethyl-sulfoxide and 5% dextrose are added to the suspending plasma medium. Slow freezing was more effective than direct immersion in the liquid nitrogen. Although similar results may be achieved with dimethylsulfoxide alone with rigidly controlled freezing rates, the addition of sugars may permit freezing under less critical conditions.Dimethylsulfoxyd und 5% Dextrose dem Plasmamilieu hinzugefügt werden. Das langsame Einfrieren ist effektiver als das direkte Eintauchen in flüssigen Stickstoff. Obschon ähnliche Resultate mit Dimethylsulfoxyd allein unter exakter Kontrolle der Einfrierungsgeschwindig-keit erreicht werden können, erlaubt die Zugabe von Dextrose ein Einfrieren unter weniger kritischen Bedingungen.

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