Sanong Ekgasit

Summary

Affiliation: Chulalongkorn University
Country: Thailand

Publications

  1. ncbi request reprint Evanescent field in surface plasmon resonance and surface plasmon field-enhanced fluorescence spectroscopies
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Anal Chem 76:2210-9. 2004
  2. ncbi request reprint ATR FT-IR absorption enhancement of a thin film under the photon-tunneling condition
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
    Anal Sci 23:847-51. 2007
  3. ncbi request reprint A novel ATR FT-IR microspectroscopy technique for surface contamination analysis without interference of the substrate
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
    Anal Sci 23:863-8. 2007
  4. ncbi request reprint Influence of the metal film thickness on the sensitivity of surface plasmon resonance biosensors
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Appl Spectrosc 59:661-7. 2005
  5. ncbi request reprint Displacement of molecules near a metal surface as seen by an SPR-SPFS biosensor
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Langmuir 21:4077-82. 2005
  6. doi request reprint Selective colors reflection from stratified aragonite calcium carbonate plates of mollusk shells
    Chutiparn Lertvachirapaiboon
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    J Struct Biol 191:184-9. 2015
  7. ncbi request reprint Acute and subacute pulmonary toxicity caused by a single intratracheal instillation of colloidal silver nanoparticles in mice: pathobiological changes and metallothionein responses
    Theerayuth Kaewamatawong
    Department of Veterinary Pathology, Chulalongkorn University, Bangkok, Thailand
    J Environ Pathol Toxicol Oncol 33:59-68. 2014
  8. doi request reprint Chemometric analysis of spectroscopic data on shape evolution of silver nanoparticles induced by hydrogen peroxide
    Kanet Wongravee
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Phys Chem Chem Phys 15:4183-9. 2013
  9. pmc Green synthesis of silk sericin-capped silver nanoparticles and their potent anti-bacterial activity
    Pornanong Aramwit
    Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Road, Patumwan, Bangkok 10330, Thailand
    Nanoscale Res Lett 9:79. 2014
  10. doi request reprint Facile and Sensitive Detection of Carbofuran Carbamate Pesticide in Rice and Soybean Using Coupling Reaction-based Surface-Enhanced Raman Scattering
    Thanyada Sukmanee
    Sensor Research Unit SRU, Department of Chemistry, Faculty of Science, Chulalongkorn University
    Anal Sci 33:89-94. 2017

Collaborators

  • Wolfgang Knoll
  • Fang Yu
  • Boosayarat Tomapatanaget
  • Gudrun Stengel
  • Prompong Pienpinijtham
  • Chuchaat Thammacharoen
  • Kanet Wongravee
  • Pornanong Aramwit
  • Chutiparn Lertvachirapaiboon
  • Yukihiro Ozaki
  • Theerayuth Kaewamatawong
  • Duangta Tongsakul
  • Pattwat Maneewattanapinyo
  • Thanyada Sukmanee
  • Juthamas Ratanavaraporn
  • Nipaporn Bang
  • Lunjakorn Amornkitbamrung
  • Tewarak Parnklang
  • Wanwisa Janrungroatsakul
  • Thawatchai Tuntulani
  • Wijit Banlunara
  • Sirinan Kulchat
  • Xiao Xia Han
  • Adchara Padermshoke
  • Jitraporn Vongsvivut
  • Chuchaat Thammachareon
  • Orawon Chailapakul
  • Wittaya Ngeontae
  • Wanlapa Aeungmaitrepirom
  • Gamolwan Tumcharern
  • Anusak Chaicham
  • Harumi Sato
  • Yukiteru Katsumoto
  • Isao Noda
  • Jason Fernandez
  • Mark S Braiman

Detail Information

Publications22

  1. ncbi request reprint Evanescent field in surface plasmon resonance and surface plasmon field-enhanced fluorescence spectroscopies
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Anal Chem 76:2210-9. 2004
    ..Excellent correlations between the experimentally measured fluorescence intensities and the evanescent field amplitudes are observed...
  2. ncbi request reprint ATR FT-IR absorption enhancement of a thin film under the photon-tunneling condition
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
    Anal Sci 23:847-51. 2007
    ..The maximum enhancement was observed when the film was sufficiently thinner than the penetration depth. The phenomena were experimentally investigated, and the results agreed very well with theoretical predictions...
  3. ncbi request reprint A novel ATR FT-IR microspectroscopy technique for surface contamination analysis without interference of the substrate
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
    Anal Sci 23:863-8. 2007
    ..A thin organic film (i.e., mineral oil or fluorolube) was coated at the tip of the IRE in order to enhance the collecting efficiency of the removable contaminants...
  4. ncbi request reprint Influence of the metal film thickness on the sensitivity of surface plasmon resonance biosensors
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Appl Spectrosc 59:661-7. 2005
    ..The phenomena were theoretically explained based on the attenuated total reflection (ATR) generated evanescent field at the prism/metal interface and the SPR-generated evanescent field at the metal/dielectric interface...
  5. ncbi request reprint Displacement of molecules near a metal surface as seen by an SPR-SPFS biosensor
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Langmuir 21:4077-82. 2005
    ..The displacement is theoretically explained on the basis of the relationship between the fluorescence intensity and the evanescent field amplitude within the dielectric medium...
  6. doi request reprint Selective colors reflection from stratified aragonite calcium carbonate plates of mollusk shells
    Chutiparn Lertvachirapaiboon
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    J Struct Biol 191:184-9. 2015
    ..Flakes with multiple aragonite thicknesses expressed multi-color as the upper aragonite layers allow reflected colors from the lower layers to be observed...
  7. ncbi request reprint Acute and subacute pulmonary toxicity caused by a single intratracheal instillation of colloidal silver nanoparticles in mice: pathobiological changes and metallothionein responses
    Theerayuth Kaewamatawong
    Department of Veterinary Pathology, Chulalongkorn University, Bangkok, Thailand
    J Environ Pathol Toxicol Oncol 33:59-68. 2014
    ..Oxidative stress may underlie the induction of injury to lung tissue. Moreover, the expression of metallothionein in tissues indicated the protective response to exposure to Ag-NPs. ..
  8. doi request reprint Chemometric analysis of spectroscopic data on shape evolution of silver nanoparticles induced by hydrogen peroxide
    Kanet Wongravee
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Phys Chem Chem Phys 15:4183-9. 2013
    ..The predicted structural morphologies of each component given by chemometric calculation were in excellent agreement with those observed by transmission electron microscope (TEM) images...
  9. pmc Green synthesis of silk sericin-capped silver nanoparticles and their potent anti-bacterial activity
    Pornanong Aramwit
    Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Road, Patumwan, Bangkok 10330, Thailand
    Nanoscale Res Lett 9:79. 2014
    ..008 mM) and gram-negative bacteria (MIC ranging from 0.001 to 0.004 mM). Therefore, the SS-capped AgNPs would be a safe candidate for anti-bacterial applications. ..
  10. doi request reprint Facile and Sensitive Detection of Carbofuran Carbamate Pesticide in Rice and Soybean Using Coupling Reaction-based Surface-Enhanced Raman Scattering
    Thanyada Sukmanee
    Sensor Research Unit SRU, Department of Chemistry, Faculty of Science, Chulalongkorn University
    Anal Sci 33:89-94. 2017
    ..Moreover, this method has been successfully validated to determine carbofuran concentrations in rice and soybean with detection limits of 0.446 and 0.520 ppm, respectively...
  11. doi request reprint Enhancement of the reduction efficiency of soluble starch for platinum nanoparticles synthesis
    Duangta Tongsakul
    Program in Petrochemistry, Faculty of Science, Chulalongkorn University, 254 Phyathai Road, Patumwan, Bangkok 10330, Thailand
    Carbohydr Res 357:90-7. 2012
    ..This observation suggests that starch is a promising green material which could be chemically treated and transformed to a powerful reducing agent and stabilizer for the synthesis of metal nanoparticles...
  12. doi request reprint An ionic surfactant-mediated Langmuir-Blodgett method to construct gold nanoparticle films for surface-enhanced Raman scattering
    Prompong Pienpinijtham
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Phys Chem Chem Phys 14:10132-9. 2012
    ..This method can also be applied to other metal nanostructures to fabricate metal films for use as a sensitive SERS substrate with a higher enhancement factor...
  13. ncbi request reprint Concentration of dye-labeled nucleotides incorporated into DNA determined by surface plasmon resonance-surface plasmon fluorescence spectroscopy
    Sanong Ekgasit
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand sanong e chula ac th
    Anal Chem 76:4747-55. 2004
    ....
  14. ncbi request reprint Surface plasmon resonance spectroscopy based on evanescent field treatment
    Sanong Ekgasit
    Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
    Anal Chem 76:561-8. 2004
    ....
  15. ncbi request reprint Characterization of supported cylinder-planar germanium waveguide sensors with synchrotron infrared radiation
    Jitraporn Vongsvivut
    Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330 Thailand
    Appl Spectrosc 58:143-51. 2004
    ..These spectral oscillations are the principal technical limitation on using synchrotron radiation to measure evanescent-wave absorption spectra with the thin waveguides...
  16. doi request reprint Palladium nanoparticles synthesized by reducing species generated during a successive acidic/alkaline treatment of sucrose
    Lunjakorn Amornkitbamrung
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand
    Spectrochim Acta A Mol Biomol Spectrosc 122:186-92. 2014
    ..The synthesized palladium nanoparticles express a good catalytic activity in the decolorization process of Congo red by sodium borohydride...
  17. doi request reprint Development of coated-wire silver ion selective electrodes on paper using conductive films of silver nanoparticles
    Wanwisa Janrungroatsakul
    Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
    Analyst 138:6786-92. 2013
    ..7 ± 1.0 mV per decade, 10(-6) to 10(-2) M linear range, detection limit of 4.5 × 10(-7) M, long-term potential stability and good reversibility. ..
  18. doi request reprint Self-assembled coordination nanoparticles from nucleotides and lanthanide ions with doped-boronic acid-fluorescein for detection of cyanide in the presence of Cu2+ in water
    Sirinan Kulchat
    Supramolecular Chemistry Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 10330 Bangkok, Thailand
    Talanta 89:264-9. 2012
    ..97 and the detection limits obtained from naked-eye and spectrofluorometry detections were 20μM and 4.03μM, respectively. The proposed method was demonstrated to detect CN(-) in drinking water with high accuracy...
  19. doi request reprint A green salt-leaching technique to produce sericin/PVA/glycerin scaffolds with distinguished characteristics for wound-dressing applications
    Pornanong Aramwit
    Bioactive Resources for Innovative Clinical Applications Research Unit, Chulalongkorn University and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Phayathai Road, Phatumwan, Bangkok, 10330, Thailand
    J Biomed Mater Res B Appl Biomater 103:915-24. 2015
    ....
  20. doi request reprint Highly sensitive and selective determination of iodide and thiocyanate concentrations using surface-enhanced Raman scattering of starch-reduced gold nanoparticles
    Prompong Pienpinijtham
    Sensor Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10240, Thailand
    Anal Chem 83:3655-62. 2011
    ..05 μM with a measurement range of 0.05-50 μM. This technique is highly selective for iodide and thiocyanate ions without interference from other coexisting anions such as other halides, carbonate, and sulfate...
  21. ncbi request reprint An evaluation of acute toxicity of colloidal silver nanoparticles
    Pattwat Maneewattanapinyo
    Sensor Research Unit, Department of Chemistry, Faculty of Science and 2 Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
    J Vet Med Sci 73:1417-23. 2011
    ..In summary, these findings of all toxicity tests in this study suggest that colloidal AgNPs could be relatively safe when administered to oral, eye and skin of the animal models for short periods of time...
  22. ncbi request reprint Melting behavior of poly(3-hydroxybutyrate) investigated by two-dimensional infrared correlation spectroscopy
    Adchara Padermshoke
    Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2 1, Gakuen, Sanda, Hyogo 669 1337, Japan
    Spectrochim Acta A Mol Biomol Spectrosc 61:541-50. 2005
    ..The bands at 2985 and 2938 cm(-1) are ascribed to the amorphous part while the rest come from crystal field splitting, which is a characteristic of polymers with a helical structure...