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Modelling and analysis of new organic thin film temperature sensor |
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| รหัสดีโอไอ | |
| Creator | Abhilasha Mishra |
| Title | Modelling and analysis of new organic thin film temperature sensor |
| Contributor | Arun P. S. Rathod |
| Publisher | Asia-Pacific Journal of Science and Technology |
| Publication Year | 2566 |
| Journal Title | Asia-Pacific Journal of Science and Technology |
| Journal Vol. | 28 |
| Journal No. | 6 |
| Page no. | 8 |
| Keyword | Organic, OTFT, OTS, Smart devices, Temperature sensor, Wearable electronics |
| URL Website | https://www.tci-thaijo.org/index.php/APST |
| Website title | https://so01.tci-thaijo.org/index.php/APST/article/view/260493 |
| ISSN | 2539-6293 |
| Abstract | Integration of sensor modules in contemporary smart devices is imperative for initiating automation in the devices. Among such sensorsResponse surface methodology was used in the current study to optimise a lignocellulosic waste medium containing wheat bran (agro residue) and Pistia stratiotes (waterweed) for escalating xylanase activity using a bacterial isolate, Massilia timonae B2YR KY942185 screened from sawmill industry soil. After box behnken design (BBD) optimization, the medium composition was wheat bran 1.5 % w/v and Pistia 2 %w/v, demonstrating a 1.95-fold increase in xylanase activity. The xylanase enzyme was purified to 20.61-fold by Cellulose Diethylaminoethyl (DEAE) Chromatography with 32.60% recovery of enzyme activity. The molecular weight of xylanase was found to be 43 kiloDalton (kDa) by using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE). Mn, a metal ion, was found to increase xylanase activity (MnCl). Simultaneously, the enzyme demonstrated remarkable stability at acidic pH (4), with a retention of 75% in relative activity after 2 h of incubation in the corresponding pH buffer. Thus, the ideal conditions for maximum xylanase activity were 28? 2?C and pH 7. The kinetic experiments revealed a Michaelis menten constant for enzyme activity (Km)of 2.7 mg/mL and a maximum velocity of enzyme activity (Vmax) of 178.3 mol/min/mg. A crude xylanase fraction treatment on a Pistia and wheat bran mixture yielded 20.66mg of xylooligosaccharides after 18 h. temperature sensors based on conventional inorganic semiconductors are most common. Temperature sensors are generally used in various electronic devices like smart watches, digital thermometers, digital weather stations etc. Integration of inorganic temperature sensor modules in such organic smart devices adds to circuit complexity, inconsistency, increment in fabrication cost and size of the device. In this research article a new flexible organic thin film temperature sensor is proposed that is inspired from the operational functionality of organic thin film transistors. The proposed organic thin film temperature sensor (OTS) is structurally and behaviourally similar to an organic thin film transistor (OTFT). A comparative analysis of OTS with single gate and dual gate OTFT structures using modelling and simulation is performed to validate its functionality and determine its operational efficiency across different performance parameters. The OTS is found to generate 167% and 17% more drain current then single gate and double gate (DG) OTFTs respectively with same material composition, and voltage regime. Also, OTS has 31% higher temperature sensitivity compared to double gate OTFTs. It will eliminate the need of additional circuit components required to make contemporary inorganic temperature sensors functional with smart organic electronic devices. Hence the proposed OTS being dimensionally and functionally equivalent to a single OTFT could replace the conventional inorganic semiconductor-based temperature sensors to achieve fabrication compatibility and size optimization in modern organic electronic devices. |
