In our research, we are exploring the use of various forms of graphene, including planar graphene substrates and graphene nanoplatelets, as the transductive and functionalizable material for preparing tailored multi-array multiplexed sensors.  Using various select polymer coatings and metal oxide nanoparticles as the sensing material, we are simultaneously developing multi-analyte gas sensors towards chemical warfare agent simulants while understanding the fundamental surface chemistry paramount to their performance.  So far, using set of just five polymer coatings mixed with graphene nanoplatelets, we’ve obtained 100% discrimination of seven simulants and nine potential interferents.  We aim to combine these technological achievements with a synergistic surface characterization approach, including Raman spectroscopy and imaging, infrared reflection-absorption spectroscopy (IRRAS), to elucidate the potential structure-functional relationships leading to optimal sensor platform design and material coating selection.<br/>

Multiplexed graphene-based nanomaterials for discriminatory sensing: A combined fundamental and applied experimental approach

253rd National Meeting (2017)

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