CERES Home
→
Browsing by Author

Browsing by Author "Lee, Seung-Woo"

Now showing items 6-17 of 17

Identification and quality assessment of beverages using a long period grating fibre-optic sensor modified with a mesoporous thin film

Korposh, Sergiy; Selyanchyn, Roman; James, Stephen; Tatam, Ralph; Lee, Seung-Woo (Elsevier, 2014-07-23)

In this study, an optical fibre long period grating (LPG) sensor functionalised with a mesoporous thin film was employed for the identification and quality assessment of beverages. The principle of the discrimination of ...
Label-free creatinine optical sensing using molecularly imprinted titanium dioxide-polycarboxylic acid hybrid thin films: a preliminary study for urine sample analysis

Lee, Seung-Woo; Ahmed, Soad; Wang, Tao; Park, Yeawon; Matsuzaki, Sota; Tatsumi, Shinichi; Matsumoto, Shigekiyo; Korposh, Sergiy; James, Steve (MDPI, 2021-07-17)

Creatinine (CR) is a representative metabolic byproduct of muscles, and its sensitive and selective detection has become critical in the diagnosis of kidney diseases. In this study, poly(acrylic acid) (PAA)-assisted ...
Long Period Grating Based Fibre Optic Chemical Sensors

Korposh, Sergiy; Lee, Seung-Woo; James, Stephen W. (Springer, 2016-11-03)

The principle of operation of optical fibre long period grating (LPG) sensors is described. In particular, the chapter explores the use of LPGs as a chemical sensing platform, discussing the fabrication of LPGs and the ...
A long period grating optical fiber sensor with nano-assembled porphyrin layers for detecting ammonia gas

Wang, Tao; Yasukochi, Wataru; Korposh, Sergiy; James, Stephen W.; Tatam, Ralph P.; Lee, Seung-Woo (Elsevier, 2016-01-19)

In this study, the ability of a long period grating (LPG) optical fiber sensor coated with a multilayer film of poly(diallyldimethyammonium chloride) (PDDA) and tetrakis(4-sulfophenyl)porphine (TSPP) to detect ammonia gas ...
A long period grating-based chemical sensor insensitive to the influence of interfering parameters

James, Stephen W.; Korposh, Sergiy; Lee, Seung-Woo; Tatam, Ralph P. (Optical Society of America (OSA), 2014-04-07)

An optical fibre chemical sensor that is insensitive to interfering parameters including temperature and surrounding refractive index is described. The sensor is based upon a Mach-Zehnder interferometer formed by a pair ...
Long-period grating fiber-optic sensors exploiting molecularly imprinted TiO2 nanothin films with photocatalytic self-cleaning ability

Wang, Tao; Korposh, Sergiy; James, Stephen; Lee, Seung-Woo (Springer, 2020-11-17)

Highly sensitive and selective long-period grating (LPG) fiber-optic sensors modified with molecularly imprinted TiO2 nanothin films were fabricated. The films were deposited onto the surface of the optical fiber via ...
Nano-assembled thin film gas sensors. 1. Ammonia detection by a porphyrin-based multilayer film.

Korposh, Serhiy O.; Takahara, Naoki; Ramsden, Jeremy J.; Lee, Seung-Woo; Kunitake, Toyoki (Association of Modern Scientific Investigation, 2006-09)

A thin film of porphyrin deposited by the layer-by-layer method is employed as the active element for an optical sensor. The usefulness of this film technology and the resulting nanoscale matrix for the detection of ...
Optical gas sensing using gold nanoparticles/polyelectrolyte layer-by-layer films: a case study with poly(acrylic acid) for ammonia detection

Wang, Tao; Okada, Takuya; Hayashi, Kenshi; James, Stephen W.; Lee, Seung-Woo (Scientific Publishing Division Myu, 2016-03-30)

this study, we demonstrated a new approach for gas sensing using multilayer films selfassembled with cationic gold nanoparticles (AuNPs+) and anionic polyelectrolytes via layerby- layer (LbL) deposition. The surface of ...
Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers

Jarzebinska, Renata; Korposh, Sergiy; James, Stephen W.; Batty, William J.; Tatam, Ralph P.; Lee, Seung-Woo (Taylor & Francis, 2012-07-31)

Tapered optical fibers with nano-assembled coatings of thicknesses of order tens of nanometres were used for the detection of ammonia gas. The film coating was composed of alternate layers of tetrakis-(4-sulfophenyl) ...
Porphyrin-nanoassembled fiber-optic gas sensor fabrication: Optimization of parameters for sensitive ammonia gas detection

Korposh, Sergiy; Kodaira, Suguru; Selyanchyn, Roman; Ledezma, Francisco H.; James, Stephen W.; Lee, Seung-Woo (Elsevier, 2017-11-09)

Highly sensitive fiber-optic ammonia gas sensors were fabricated via layer-by-layer deposition of poly(diallyldimethylammonium chloride) (PDDA) and tetrakis(4-sulfophenyl)porphine (TSPP) onto the surface of the core of a ...
Refractive index sensitivity of fibre optic long period gratings with SiO2 nanoparticle based mesoporous coatings

Korposh, Sergiy; Lee, Seung-Woo; James, Stephen W.; Tatam, Ralph P. (2011-12-31)

A fibre optic long period grating (LPG) with an nano-assembled mesoporous coating of alternate layers of poly (allylamine hydrochloride) (PAH) and SiO2 nanospheres was used for the development of a fibre-optic refractometer. ...
Tapered optical fibre sensors: current trends and future perspectives

Korposh, Sergiy; James, Stephen W.; Lee, Seung-Woo; Tatam, Ralph P. (MDPI, 2019-05-17)

The development of reliable, affordable and efficient sensors is a key step in providing tools for efficient monitoring of critical environmental parameters. This review focuses on the use of tapered optical fibres as an ...

Browsing by Author "Lee, Seung-Woo"

Browsing by Author "Lee, Seung-Woo"

Search CERES

Browse

All of CERES

My Account