“…Graphene sheets also serve as good substrates for various other molecule detection, including acetylcholine/choline [42], cholesterol [43], benzenediol isomers (hydroquinone, resorcinol, catechol) [44], epinephrine [45], aromatic molecules (crystal violet, amaranth, phosphorus triphenyl [46], and rhodamine 6G, rhodamine B, methyl violet, methylene blue [47]), folic acid [48], naphthalene and 1-naphthol [49], malachite green [50], microcystin-LR [51], cocaine/adenosine [52], pyrogallol [53,54], nitric oxide [55], urea [56], hydrazine [57], nitrophenol [58], catechol [59], hypoxanthine [60], chlorite [61], paraoxon [62,63], phenol [64], heparin [65,66], trinitrotoluene (TNT) [67,68], bleomycin [69], ochratoxin A, and fumonisin B 1 [70].…”