KANCHANA M1, RAJASEKARAN E2, KUMAR B1, USHA ANTONY3
Journal of Polymer Materials, Vol.38, No.3-4, pp. 309-325, 2021, DOI:10.32381/JPM.2021.38.3-4.11
Abstract The objective of this research work is to investigate the feasibility of fabricating bio-based
visual sensor indicators to detect the presence of H2S using inkjet printing. Myoglobin and
chitosan were used as indicating and immobilizing materials respectively. 30 mg of myoglobin
dissolved in 1 mL of tris buffer with 10% glycerol gave optimum jettability properties. Similarly,
drop formation was optimal for 0.50% m/v chitosan solution diluted to 10 cP viscosity. The
samples were fabricated in layer-by-layer approach and indicator with 2 layers of chitosan and 4
layers of myoglobin gave maximum sensitivity with 14.42 for 0.7 mg/L of H2S. The… More >
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