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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 modifiedPublication 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 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 lactatePublication 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