US 12,220,746 B2
Method for preparing gold nanorods using reducing agent mixture and reducing agent mixture for same
Seunghyun Lee, Gyeonggi-do (KR); and Sunghoon Yoo, Gyeonggi-do (KR)
Assigned to INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Gyeonggi-do (KR)
Filed by INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Gyeonggi-do (KR)
Filed on Dec. 23, 2022, as Appl. No. 18/088,415.
Claims priority of application No. 10-2022-0072897 (KR), filed on Jun. 15, 2022.
Prior Publication US 2023/0405675 A1, Dec. 21, 2023
Int. Cl. B22F 9/24 (2006.01); B22F 1/0545 (2022.01); B82Y 40/00 (2011.01)
CPC B22F 9/24 (2013.01) [B22F 1/0545 (2022.01); B22F 2301/255 (2013.01); B22F 2303/01 (2013.01); B22F 2304/05 (2013.01); B82Y 40/00 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for preparing gold (Au) nanorods using a reducing agent mixture, comprising:
a step of preparing a seed solution comprising
seed particles of gold nanoparticles; and
a step of growing seeds of the gold nanoparticles into nanorods by adding a growth solution comprising ascorbic acid (AA) and hydroquinone (HQ) to the prepared seed solution,
wherein the ascorbic acid first reduces the seeds of the gold nanoparticles and the amount of the ascorbic acid (AA) is insufficient to reduce all gold ions in the seed particles.