TY - JOUR
T1 - Chiral Inorganic Nanostructures from Achiral Platforms
T2 - A Universal Synthesis Route via Supramolecular Self-Assembly
AU - Kim, Minju
AU - Bazaid, Mohammed O.
AU - Lee, Hyun Jeong
AU - Jang, Seung Soon
AU - Jang, Yu Jin
AU - Kim, Dong Ha
N1 - Funding Information:
The work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (2020R 1A 2C 3003958), the Basic Science Research Program (Priority Research Institute) funded by the Ministry of Education (2021R 1A 6A 1A10039823), the Korea Basic Science Institute (National Research Facilities and Equipment Center) grant funded by the Ministry of Education (2020R 1A 6C 101B194), the Creative Materials Discovery Program through the NRF funded by the Ministry of Science and ICT (2018M3D1A1058536), and the Ewha Womans University Research Grant of 2022. This research was also supported by the Korea Initiative for Fostering University of Research and Innovation Program of NRF, funded by the Korean Government (MSIT) (2020M3H1A1077095).
Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/4/25
Y1 - 2023/4/25
N2 - The chirality of nanostructured systems has gained growing attention in catalysis, biotechnology, and optoelectronics owing to their exotic enantio-/spin-selective interactions and intriguing chiroptical features. However, large-scale fabrication of chiral inorganic nanostructures still remains a challenge. Herein, we report a simple but generalized route for the synthesis of diverse chiral inorganic nanoparticles (NPs) such as Au, Ag, PdO, and TiO2 NPs using block copolymer (BCP) templates. The self-assembled BCP inverse micelles offered a specific environment, wherein dl-alanine induced left-handedness via hydrogen bonding with the pyridines of polystyrene-block-poly(4-vinyl pyridine), for the evolution of chirality. The BCPs were then used as a chiral host to transfer their handedness to the anchored inorganic NPs, resulting in an anisotropy factor of −8.6 × 10-4 for the BCP/Au NP hybrid. Our design concept pinpoints the steps required to construct an extended library of viable chiral nanostructures and will aid in the development of artificial chiral materials.
AB - The chirality of nanostructured systems has gained growing attention in catalysis, biotechnology, and optoelectronics owing to their exotic enantio-/spin-selective interactions and intriguing chiroptical features. However, large-scale fabrication of chiral inorganic nanostructures still remains a challenge. Herein, we report a simple but generalized route for the synthesis of diverse chiral inorganic nanoparticles (NPs) such as Au, Ag, PdO, and TiO2 NPs using block copolymer (BCP) templates. The self-assembled BCP inverse micelles offered a specific environment, wherein dl-alanine induced left-handedness via hydrogen bonding with the pyridines of polystyrene-block-poly(4-vinyl pyridine), for the evolution of chirality. The BCPs were then used as a chiral host to transfer their handedness to the anchored inorganic NPs, resulting in an anisotropy factor of −8.6 × 10-4 for the BCP/Au NP hybrid. Our design concept pinpoints the steps required to construct an extended library of viable chiral nanostructures and will aid in the development of artificial chiral materials.
UR - http://www.scopus.com/inward/record.url?scp=85152712046&partnerID=8YFLogxK
U2 - 10.1021/acs.chemmater.2c02833
DO - 10.1021/acs.chemmater.2c02833
M3 - Article
AN - SCOPUS:85152712046
SN - 0897-4756
VL - 35
SP - 3073
EP - 3082
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 8
ER -