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. 2017 Dec 12;12:8725–8734. doi: 10.2147/IJN.S149536

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© 2017 Liang et al. This work is published and licensed by Dove Medical Press Limited

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UV spectra of the GONR systems.

Notes: (A) HP–hCG–GONR–HAuCl₄–TCA system – a: 35 nmol/L HP +240 ng/mL GONR +0.167 mmol/L HCl +0.34 mmoL/L TCA +5.6 μmoL/L HAuCl₄; b: a+0.67 ng/mL hCG; c: a+1.67 ng/mL hCG; d: a+3.33 ng/mL hCG; e: a+6.67 ng/mL hCG; f: a+10 ng/mL hCG; and g: a+13.33 ng/mL hCG. (B) GONR–HAuCl₄–TCA system – a: 0.167 mmoL/L HCl +0.34 mmoL/L TCA +5.6 μmol/L HAuCl₄; b: a+16 ng/mL GONR; c: a+40 ng/mL GONR; d: a+80 ng/mL GONR; e: a+120 ng/mL GONR; f: a+160 ng/mL GONR; and g: a+240 ng/mL GONR. (C) HP–GONR–HAuCl₄–TCA system – a: 240 ng/mL GONR +0.167 mmoL/L HCl +0.34 mmoL/L TCA +5.6 μmoL/L HAuCl₄; b: a+5 nmoL/L HP; c: a+10 nmoL/L HP; d: a+20 nmoL/L HP; and e: a+30 nmoL/L HP.

Abbreviations: A, absorbance; UV, ultraviolet; GONR, graphene oxide nanoribbon; HP, hCG polypeptide; hCG, human chorionic gonadotropin; TCA, trisodium citrate.