S. Thanapitak
Imperial College London, London, ENG, United Kingdom

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Publications (2)0.96 Total impact

  • Article: Verification of ISFET response time for millisecond range ion stimulus using electronic technique
    S. Thanapitak, P. Pookaiyaudom, P. Seelanan, F.J. Lidgey, K. Hayatleh, C. Toumazou
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    ABSTRACT: The ion sensitive field effect transistor (ISFET) is a popular sensor in biomedical electronics and has been used to date mainly for relatively low speed applications, such as measurement of pH of common biomedical fluids. However, there is a growing interest in sensing rapidly changing ion activity for applications including chemical synapse and rapid DNA sequencing. In this reported work, it is demonstrated that the response time of the ISFET is sufficient for these applications. The results obtained are used to determine the factors that affect high speed chemical sensing with the ISFET.
    Electronics Letters 06/2011; · 0.96 Impact Factor
  • Conference Proceeding: Towards a bionic chemical synapse
    S. Thanapitak, C. Toumazou
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    ABSTRACT: This paper presents an analogue VLSI circuit which implements three particular receptors of the chemical synapse: AMPA, GABA<sub>A</sub> and GABA<sub>B</sub>. The dynamics of postsynaptic receptor is implemented in CMOS current mode circuits. Furthermore with the implementation of chemical sensors in CMOS technology, the possibility of realising complete synapses which model the non-linear electrochemical behaviour of the synapse is now feasible.
    Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on; 06/2009

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Institutions

  • 2011
    • Imperial College London
      • Department of Electrical and Electronic Engineering
      London, ENG, United Kingdom
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