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Gold nanaorods (AuNRs) have received extensive attention due to their extremely attractive applications in biomedical technologies, plasmon-enhanced spectroscopies, and optical and optoelectronic devices.Compared to other nanocrystals, AuNRs have significant advantages because their palsmon wavelength of the longitudinal mode can cover the visible and near-infrared (NIR) regions by tailoring their aspect ratios.