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\bibitem{Thirumalraj_etal2016} {\textquotedblleft}\textit{A graphene/gelatin composite material for the entrapment of hemoglobin for bioelectrochemical sensing applications}{\textquotedblright}. Thirumalraj alamurugan, Palanisamy S, Chen S-M, De Wael K, Journal of the electrochemical society \textbf{163}, 265 (2016).   http://doi.org/10.1149/2.0341607JES

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