Fiber Optic Chemical Sensor Development

1989 ◽  
Author(s):  
John I. Peterson
Keyword(s):  
Chemical Sensor ◽  
Fiber Optic ◽  
Sensor Development

scholarly journals Low-Cost Fiber Optic Chemical Sensor Development for Fishpond Application

2018 ◽  
Vol 16 (6) ◽  
pp. 2921
Author(s):  
Budi Mulyanti ◽  
Yuski Maolid Rizki Faozan ◽  
Ajuni B. Pantjawati ◽  
Roer Eka Pawinanto ◽  
Lilik Hasanah ◽  
...  
Keyword(s):  
Chemical Sensor ◽  
Fiber Optic ◽  
Low Cost ◽  
Sensor Development

scholarly journals Fiber-Optic Time-Resolved Fluorescence Sensor for in Vitro Serotonin Determination

1993 ◽  
Vol 47 (5) ◽  
pp. 590-597 ◽  
Author(s):  
Stephane Mottin ◽  
Canh Tran-Minh ◽  
Pierre Laporte ◽  
Raymond Cespuglio ◽  
Michel Jouvet
Keyword(s):  
Chemical Sensor ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Excitation Wavelength ◽  
Nitrogen Laser ◽  
Time Resolved ◽  
Temporal Effects ◽  
Starting Point

At pH 7 and with the excitation at wavelengths above 315 nm, previously unreported fluorescence of 5-HT (5-hydroxytryptamine) is observed. Two fluorescence bands were observed for 5-HT; the first emits at around 390 nm with an associated lifetime near 1 ns, and the other (well known) emits at 340 nm with an associated lifetime of 2.7 ns. With both static and time-resolved fluorescences, the spectral and temporal effects of the excitation wavelength were studied between 285 and 340 nm. With these basic spectroscopic properties as a starting point, a fiber-optic chemical sensor (FOCS) was developed in order to measure 5-HT with a single-fiber configuration, nitrogen laser excitation, and fast digitizing techniques. Temporal effects including fluorescence of the optical fiber were studied and compared with measurements both directly in cuvette and through the fiber-optic sensor. Less than thirty seconds are required for each measurement. A detection limit of 5-HT is reached in the range of 5 μM. Our system, with an improved sensitivity, could therefore be a possible and convenient “tool” for in vivo determination of 5-HT.

scholarly journals FIBER-OPTIC CHEMICAL SENSOR USING VISIBLE SEMICONDUCTOR LASER AND PLASTICIZED POLY (VINYL CHLORIDE) MEMBRANE

1991 ◽  
Vol 7 (Supple) ◽  
pp. 1465-1468 ◽  
Author(s):  
YUJI KAWABATA ◽  
KEN-ICHI YASUNAGA ◽  
TOTARO IMASAKA ◽  
NOBUHIKO ISHIBASHI
Keyword(s):  
Semiconductor Laser ◽  
Vinyl Chloride ◽  
Chemical Sensor ◽  
Fiber Optic ◽  
Poly Vinyl Chloride

Room temperature stable ClPrNTf2 ionic liquid utilizing for chemical sensor development

2016 ◽  
Vol 811 ◽  
pp. 74-80 ◽  
Author(s):  
Mohammed M. Rahman ◽  
Hadi M. Marwani ◽  
Abdelmohsen A. Alshehri ◽  
Hassan A. Albar ◽  
Juan Bisquert ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Chemical Sensor ◽  
Sensor Development

Hydrothermally prepared Ag2O/CuO nanomaterial for an efficient chemical sensor development for environmental remediation

2018 ◽  
Vol 10 ◽  
pp. 1-9 ◽  
Author(s):  
Mohammed M. Rahman ◽  
M.M. Alam ◽  
Mohammad M. Hussain ◽  
Abdullah M. Asiri ◽  
Mohie E. Moustafa Zayed
Keyword(s):  
Environmental Remediation ◽  
Chemical Sensor ◽  
Sensor Development

scholarly journals Development of Fiber Optic Chemical Sensor for Monitoring Acid Rain Level

2018 ◽  
Vol 384 ◽  
pp. 012069 ◽  
Author(s):  
B Mulyanti ◽  
Y M R Faozan ◽  
W S Putro ◽  
R E Pawinanto ◽  
A H S Budi ◽  
...  
Keyword(s):  
Acid Rain ◽  
Chemical Sensor ◽  
Fiber Optic

Interplay Between Silicon Nanocrystal Size and Local Environment Within Porous Silicon on the Analyte-Dependent Photoluminescence Response

2019 ◽  
Vol 73 (10) ◽  
pp. 1218-1227
Author(s):  
Samantha Matthews ◽  
Frank V. Bright
Keyword(s):  
Porous Silicon ◽  
Chemical Sensor ◽  
Local Environment ◽  
Sensor Response ◽  
Size Distributions ◽  
Sensor Development ◽  
Nanocrystallite Size ◽  
Relative Standard ◽  
Silicon Nanocrystallites ◽  
Photoluminescence Response

Porous silicon (pSi) exhibits strong photoluminescence (PL) and its PL is often exploited for chemical sensor development. However, the sensor response is not uniform across a pSi specimen. We use co-localized confocal PL and Raman scattering mapping to establish a relationship between the analyte-induced PL response and the silicon nanocrystallite size, size distribution, and amorphous silicon (aSi) contribution across a pSi specimen. Using toluene as a model analyte, high analyte-induced PL response is associated with areas within the specimen that have (i) low aSi content, (ii) silicon nanocrystallites having diameters between 2 and 5 nm, and (iii) silicon nanocrystallites that exhibit a narrow size distributions (≤1% relative standard deviation).

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