Pintavirooj, Chuchart

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Preferred name
Pintavirooj, Chuchart
Alternative Name
Pintavirooj, C.
Pintavirooj, Chuchat
Main Affiliation
Email
chuchart.pi@kmitl.ac.th

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    Item type:Publication,
    IDE Gas Sensor Based Dengue Virus Co-imprinting for Detection of 2,4,6-Trinitrotoluene
    (2021-03-10)
    Puttasakul, Tasawan
    ;
    Sukjee, Wannisa
    ;
    Pintavirooj, Chuchart
    ;
    Sangma, Chak
    In this work we present a method for explosive vapor detection by molecularly imprinted polymer (MIP) gas sensor. The explosive compound under investigation, 2,4,6-trinitrotoluene (TNT), in combination with dengue virus (DENV) was imprinted on polymer nanocomposites surface. This technique can create more TNT binding sites on the polymer structure. Thus, increasing the efficiency of template recognition. The TNT sensor was fabricated by coating the TNT MIP-composites on the surface of interdigitated electrodes (IDE). TNT detection was carried out by observing the capacitance change after TNT vapor expose. The result show that this technique can be used to detect TNT.
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    Item type:Publication,
    Detection of 2,4,6-Trinitrotoluene by MIP-composite Based Electrochemical Sensor
    (2021-03-10)
    Puttasakul, Tasawan
    ;
    Tancharoen, Chompoonuch
    ;
    Sukjee, Wannisa
    ;
    Pintavirooj, Chuchart
    ;
    Sangma, Chak
    In Thailand, there are terrorist groups active in some areas where casualties from their operations are civilians. Most of these casualties are from explosive device. The main component of the device is high explosive compound called 2,4,6-trinitrotoluene (TNT). Detection of TNT from objects and places in the suspected or area bombardment will provide useful evidence for the authority. In this work, we fabricate an electrochemical TNT sensor based on molecularly imprinted polymers (MIP) nanocomposites. The sensor aimed at TNT trace detection from solution of solid specimens. The sensor was able to detect TNT in solution with 3 log-scale linearity with 0.4 ppt lower limit of detection. The selectivity of the sensor toward TNT was considerably high compared with the other nitro compound.