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Publication Metadata only Detection of DNA Hybridization Using Protein A Modified Ion Sensitive Field Effect Transistor(2015-01-01) Nang Mo Hom; Chamras Promptmas; Kesara Wat-Aksorn; Mahidol University© 2015, Copyright © Taylor & Francis Group, LLC. A DNA sensor based on an ion sensitive field effect transistor (ISFET) with protein A modification for characterization of DNA hybridization is reported. The surface of the ISFET was modifiedItem Metadata only A silicon nitride ion sensitive field effect transistor-based immunosensor for determination of urinary albumin(2022-12-01) Saengdee P.; Thanapitak S.; Ongwattanakul S.; Srisuwan A.; Pankiew A.; Thornyanadacha N.; Chaisriratanakul W.; Jeamsaksiri W.; Promptmas C.; Mahidol UniversityThe development of an immunosensor-based biosensor to detect the human serum albumin (HSA) was developed as a low-cost and label-free electrical detection through silicon nitride ion-sensitive field-effect transistor (Si3N4-ISFET). This sensorPublication Metadata only Nanothin polyaniline film for highly sensitive chemiresistive gas sensing(2013-06-01) Sira Srinives; Tapan Sarkar; Ashok Mulchandani; University of California, Riverside; Mahidol UniversityThis study developed a facile technique for site-specific synthesis of nanometer-thick polyaniline (PANI) film for fabrication of field-effect transistor/chemiresistor sensors. The nanothin film had a thickness of 9-20nm and was of carpet-likePublication Metadata only Single-walled Carbon Nanotube-Calixarene Based Chemiresistor for Volatile Organic Compounds(2018-09-01) Tapan Sarkar; Sira Srinives; Armando Rodriquez; Ashok Mulchandani; University of California, Riverside; Mahidol University; Guru Gobind Singh Indraprastha UniversityAdministration (OSHA) permissible exposure limit (PEL) except for benzene. A mechanistic study for BTEX was performed via field-effect transistor measurements, and this suggested that the sensing mechanism is dominated by an electrostatic gating effect. In our... beneficial effects: (a) The use of SWCNT eliminates the conductivity issue, and this enables low-power chemiresistive sensing; (b) the excellent affinity of calixarenes for certain analytes improves sensitivity. The hybrid material was fabricated by solventPublication Metadata only Sequential injection system for analysis of degree brix, orthophosphate and ph in raw sugarcane juice applicable to sugar industry(2021-11-01) Phoonthawee Saetear; Nattinee Saechua; Kamonthip Sereenonchai; Mahidol University; Thammasat University. Compensation of the schlieren effect from sucrose for determination of orthophosphate was achieved by using a dual-wavelength spectrometric detection. Second detector is a pH-sensing device, called ion-selective field-effect transistors (ISFET). The ISFET...) sucrose) was based on manipulation of the schlieren effect at the interface between plugs of sample and water. Orthophosphate analysis was carried out based on the molybdenum blue method with significant reduction in consumption of the reagentsPublication Metadata only Optimization of 3-aminopropyltriethoxysilane functionalization on silicon nitride surface for biomolecule immobilization(2020-01-15) Pawasuth Saengdee; Chamras Promptmas; Surachoke Thanapitak; Awirut Srisuwan; Apirak Pankiew; Nutthaphat Thornyanadacha; Woraphan Chaisriratanakul; Ekalak Chaowicharat; Wutthinan Jeamsaksiri; Mahidol University; Thailand National Electronics and Computer Technology Centerto demonstrate the agglomeration of APTES molecule. Moreover, ion sensitive field effect transistor (ISFET) was employed as a biosensor model to demonstrate the effect between surface thickness and sensitivity of biosensor. The results show that the APTES... property, chemical bonding composition and surface thickness, respectively. In addition, biotin was used as a model to determine the effectiveness of APTES modification condition by coupling with glutaraldehyde (GA). The Alexa Flour 488 conjugatedPublication Metadata only Effects of Synthesis and Processing on Optoelectronic Properties of Titanium Carbonitride MXene(2019-04-23) Kanit Hantanasirisakul; Mohamed Alhabeb; Alexey Lipatov; Kathleen Maleski; Babak Anasori; Pol Salles; Chanoknan Ieosakulrat; Pasit Pakawatpanurut; Alexander Sinitskii; Steven J. May; Yury Gogotsi; University of Nebraska–Lincoln; Drexel University; Mahidol Universityin ensemble transport measurements. When the intercalants are removed, Ti3CNTx exhibits its intrinsic metallic behavior in good agreement with Hall measurements and transport properties measured on single-flake field-effect transistor devices. The dependence... of the transition-metal layer and control of surface terminations. However, the impact of the C and N site composition on electronic transport has not been explored. In this study, the effects of synthesis methods on optoelectronic properties of 2D titaniumPublication Metadata only Surface modification of silicon dioxide, silicon nitride and titanium oxynitride for lactate dehydrogenase immobilization(2015-05-05) Pawasuth Saengdee; Woraphan Chaisriratanakul; Win Bunjongpru; Witsaroot Sripumkhai; Awirut Srisuwan; Wutthinan Jeamsaksiri; Charndet Hruanun; Amporn Poyai; Chamras Promptmas; Mahidol University; Thai Microelectronics Center (TMEC)among tested surfaces, with both APTES and APTES-GA modification. However, TiON and Si3N4surfaces could be used as alternative candidate materials in the preparation of ion-sensitive field-effect transistor (ISFET) based biosensors, including lactateItem Metadata only Modified ISFET for Real-Time Calcium Ion Sensing in MDA-MB-231 Breast Cancer Cells(2025-01-01) Phamornnak C.; Klaharn N.; Suwanno T.; Bunjongpru W.; Jeamsaksiri W.; Oonkhanond B.; Srinives S.; Phamornnak C.; Mahidol University2⁺ concentrations ([Ca2+]e) can provide valuable quantitative insights into programmed cell death, which may greatly benefit cancer therapy and other biological applications. This study used a modified ion-sensitive field-effect transistor (ISFETPublication Metadata only A silicon nitride ISFET based immunosensor for Ag85B detection of tuberculosis(2016-10-21) Pawasuth Saengdee; Woraphan Chaisriratanakul; Win Bunjongpru; Witsaroot Sripumkhai; Awirut Srisuwan; Charndet Hruanun; Amporn Poyai; Ponrut Phunpae; Supansa Pata; Wutthinan Jeamsaksiri; Watchara Kasinreak; Chamras Promptmas; Mahidol University; Thailand National Science and Technology Development Agency; Chiang Mai University© 2016 The Royal Society of Chemistry. A silicon nitride Ion Sensitive Field Effect Transistor (ISFET) based immunosensor was developed as a low-cost and label-free electrical detection for the detection of antigen 85 complex B (Ag85B). The sensing