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¸½ÎÄÏ×ÖеIJ½Ö裺The sAuNRs were synthesized by a one-pot seedless technique.1 mL of 5 mM HAuCl4, 5 mL of 0.2 M CTAB, and 4.5 mL of ultrapure water were mixed in a 50 mL glass beaker and then 500 mL of 0.1M NaOL and 250 mL of 4mM AgNO3 were added undergentle stirring. Afterwards, 8 mL of concentrated HCl (36%-38%) were injected, followed by addition of 56 mL of 0.1 M ascorbic acidunder slight swirling until the solution changed from dark orange to colorless. 15 mL of freshly prepared ice-cold 10 mM of NaBH4were added rapidly. The solution was gently mixed for 10 s and left undisturbed for 3 h in an incubator at 35 C. The nanorod solutionwas centrifuged at 16,000 rpm for 15 min to stop the reaction.

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