An improved laser fluorimeter for the detection of traces of uranium

1989 ◽  
Vol 97 (5-6) ◽  
pp. 365-372 ◽  
Author(s):  
Rui Zhang ◽  
Yu Lin ◽  
Jianhua Cheng
Keyword(s):  
Laser Fluorimeter

scholarly journals Remote Laser Fluorimeter to Detect Stress of Plants

2017 ◽  
pp. 1-13
Author(s):  
Yu. V. Fedotov ◽  
O. A. Bullo ◽  
M. L. Belov ◽  
V. A. Gorodnichev
Keyword(s):  
Laser Fluorimeter

A Fiber-Optic Laser Fluorimeter for NIR Luminescent Diagnostics of Skin and Mucous Membrane Neoplasms

2021 ◽  
Vol 54 (6) ◽  
pp. 371-375
Author(s):  
I. P. Shilov ◽  
L. Yu. Kochmarev ◽  
E. P. Novichihin
Keyword(s):  
Mucous Membrane ◽  
Fiber Optic ◽  
Laser Fluorimeter

A nanosecond laser fluorimeter

2006 ◽  
Vol 49 (3) ◽  
pp. 430-434 ◽  
Author(s):  
A. A. Banishev ◽  
D. V. Maslov ◽  
V. V. Fadeev
Keyword(s):  
Nanosecond Laser ◽  
Laser Fluorimeter

Energy Transfer Study on Coumarin-30-Rhodamine-6G Dye Mixture Using a Laser Fluorimeter

1990 ◽  
Vol 37 (3) ◽  
pp. 419-425 ◽  
Author(s):  
R.D. Singh ◽  
A.K. Sharma ◽  
N.V. Unnikrishnan ◽  
Devendra Mohan
Keyword(s):  
Energy Transfer ◽  
Rhodamine 6G ◽  
Laser Fluorimeter ◽  
Rhodamine 6G Dye ◽  
Transfer Study

Cardiac metabolism monitored by fiberoptic laser fluorimeter

1984 ◽  
Vol 108 (2) ◽  
pp. 428-429 ◽  
Author(s):  
Guy Renault ◽  
Elizabeth Raynal ◽  
Martine Sinet ◽  
Martine Muffat-Joly ◽  
Jean-Marie Vallois ◽  
...  
Keyword(s):  
Cardiac Metabolism ◽  
Laser Fluorimeter

In situ double-beam NADH laser fluorimetry: choice of a reference wavelength

1984 ◽  
Vol 246 (4) ◽  
pp. H491-H499 ◽  
Author(s):  
G. Renault ◽  
E. Raynal ◽  
M. Sinet ◽  
M. Muffat-Joly ◽  
J. P. Berthier ◽  
...  
Keyword(s):  
Blood Circulation ◽  
Mathematical Relationship ◽  
Perfused Rat Heart ◽  
Laser Fluorimetry ◽  
Beam Laser ◽  
Double Beam ◽  
On Line ◽  
Laser Fluorimeter ◽  
Living Tissues

A double-beam laser fluorimeter, using a single optical fiber to guide the lights, was constructed for in situ and on-line monitoring of NADH concentration [( NADH]) from normally blood-perfused living tissues. The device was tested on an isolated blood-perfused rat heart system to determine the most efficient reference wavelength for the compensation of the hemodynamic artifact induced by blood circulation in the tissues on the fluorescence measure; 586 nm was found to be an accurate reference wavelength, and a mathematical relationship was established that allowed the digital treatment of the measured fluorescence to give a signal (compensated fluorescence) that varied only with [NADH] in the volume of tissue investigated.

In Situ Monitoring Of Living Organs Metabolism With A Laser Fluorimeter

1984 ◽  
Author(s):  
G. Renault ◽  
M. Sinet ◽  
M. Muffat-Joly ◽  
E. Raynal ◽  
J. P. Berthier ◽  
...  
Keyword(s):  
In Situ Monitoring ◽  
Laser Fluorimeter

Theranostics of skin neoplasms based on luminescence diagnostics in combination with photodynamic therapy in the absorption band of porphyrin

2022 ◽  
Vol 52 (1) ◽  
pp. 56-62
Author(s):  
I P Shilov ◽  
A S Gorshkova ◽  
A V Ivanov ◽  
V D Rumyantseva ◽  
G L Danielyan ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Quantum Yield ◽  
Absorption Band ◽  
Therapeutic Effect ◽  
Extinction Coefficient ◽  
Photophysical Properties ◽  
Skin Neoplasms ◽  
Dmso Solution ◽  
Experimental Animals ◽  
Laser Fluorimeter

Abstract We report the results of developing a technique for theranostics of skin neoplasms based on luminescence diagnostics in combination with photodynamic therapy (PDT) in the absorption band of porphyrin. It is shown that the therapeutic effect is achieved exclusively due to PDT, without the participation of the hyperthermia process, which occurs at temperatures above 42 °C. The Fluroscan gel [based on the dipotassium salt of the ytterbium complex of 2,4-di-(a-methoxyethyl)deuteroporphyrin IX (Yb-DMDP)] is used as a preparation for theranostics. The main photophysical properties and possible mechanisms of accumulation of nanosized low-toxic photosensitisers based on this compound are studied. It is shown that the Yb-DMDP compound in a DMSO solution (30% aqueous DMSO) enhances photophysical characteristics (luminescence lifetime 5-10 ms, luminescence quantum yield up to 1%, extinction coefficient ~1.96 × 105 M-1 cm-1 at a wavelength of 398 nm). Experimental animals are used to test the proposed technique for theranostics of tumours using the Fluroscan gel and a fibre-optic laser fluorimeter.

scholarly journals Determination of uranium at ultra trace level in packaged drinking water by laser fluorimeter and consequent ingestion dose

2010 ◽  
Vol 45 (1) ◽  
pp. 55-66 ◽  
Author(s):  
S.K. Sahoo ◽  
S. Mohapatra ◽  
A. Chakrabarty ◽  
C.G. Sumesh ◽  
V.N. Jha ◽  
...  
Keyword(s):  
Drinking Water ◽  
Ingestion Dose ◽  
Trace Level ◽  
Laser Fluorimeter ◽  
Ultra Trace
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