Self-Assembly of 2D Gold Nanoparticle Superlattice in a Polymer Vesicle Layer Driven by Hydrophobic Interaction

Jong Dae Jang; Moongi Bae; Changwoo Do; Soo Hyung Choi; Joona Bang; Young Soo Han; Tae Hwan Kim

doi:10.1021/acs.jpclett.1c01684

Self-Assembly of 2D Gold Nanoparticle Superlattice in a Polymer Vesicle Layer Driven by Hydrophobic Interaction

Jong Dae Jang, Moongi Bae, Changwoo Do, Soo Hyung Choi, Joona Bang, Young Soo Han, Tae Hwan Kim

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Abstract

Self-assembly of gold nanoparticles (AuNPs) into highly ordered superstructures provides a promising route toward fabricating materials with new functionalities or enhanced physical properties. Although self-assembly of AuNPs has garnered significant research attention recently, a highly ordered superlattice of AuNPs under a low concentration in a confined geometry formed by nonfunctionalized materials has not been reported. Herein, we investigate the self-assembly of a 2D AuNPs superlattice in a polymer vesicle layer using hydrophobic interactions, which exhibits centered rectangular lattice symmetry. To create the highly ordered AuNPs superlattice, the P(EG_x-b-iPGE_y) block copolymers that form the thickness of the hydrophobic vesicle layer comparable to the size of the AuNP are used as a template to control the AuNP degree of freedom. To the best of our knowledge, this study provides the first demonstration of a centered rectangular structure formation of AuNPs at the vesicle layer in 2D confined geometry.

Original language	English
Pages (from-to)	6736-6743
Number of pages	8
Journal	Journal of Physical Chemistry Letters
Volume	12
Issue number	28
DOIs	https://doi.org/10.1021/acs.jpclett.1c01684
State	Published - Jul 22 2021

Funding

This work was funded by the National Research Foundation of Korea (NRF) Grants NRF-2020R1I1A3A04036603, NRF-2019M2A2A6A05102332, NRF-2020K1A3A7A09078089, NRF-2020M2D6A1044636, and NRF-2017M2A2A6A05017651 and by the HANARO Center of Korea Atomic Energy Research Institute.

Funders	Funder number
HANARO Center of Korea Atomic Energy Research Institute
National Research Foundation of Korea	NRF-2020R1I1A3A04036603, NRF-2019M2A2A6A05102332, NRF-2020K1A3A7A09078089, NRF-2017M2A2A6A05017651, NRF-2020M2D6A1044636

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10.1021/acs.jpclett.1c01684

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title = "Self-Assembly of 2D Gold Nanoparticle Superlattice in a Polymer Vesicle Layer Driven by Hydrophobic Interaction",

abstract = "Self-assembly of gold nanoparticles (AuNPs) into highly ordered superstructures provides a promising route toward fabricating materials with new functionalities or enhanced physical properties. Although self-assembly of AuNPs has garnered significant research attention recently, a highly ordered superlattice of AuNPs under a low concentration in a confined geometry formed by nonfunctionalized materials has not been reported. Herein, we investigate the self-assembly of a 2D AuNPs superlattice in a polymer vesicle layer using hydrophobic interactions, which exhibits centered rectangular lattice symmetry. To create the highly ordered AuNPs superlattice, the P(EGx-b-iPGEy) block copolymers that form the thickness of the hydrophobic vesicle layer comparable to the size of the AuNP are used as a template to control the AuNP degree of freedom. To the best of our knowledge, this study provides the first demonstration of a centered rectangular structure formation of AuNPs at the vesicle layer in 2D confined geometry.",

author = "Jang, {Jong Dae} and Moongi Bae and Changwoo Do and Choi, {Soo Hyung} and Joona Bang and Han, {Young Soo} and Kim, {Tae Hwan}",

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doi = "10.1021/acs.jpclett.1c01684",

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AU - Jang, Jong Dae

AU - Bae, Moongi

AU - Do, Changwoo

AU - Choi, Soo Hyung

AU - Bang, Joona

AU - Han, Young Soo

AU - Kim, Tae Hwan

PY - 2021/7/22

Y1 - 2021/7/22

N2 - Self-assembly of gold nanoparticles (AuNPs) into highly ordered superstructures provides a promising route toward fabricating materials with new functionalities or enhanced physical properties. Although self-assembly of AuNPs has garnered significant research attention recently, a highly ordered superlattice of AuNPs under a low concentration in a confined geometry formed by nonfunctionalized materials has not been reported. Herein, we investigate the self-assembly of a 2D AuNPs superlattice in a polymer vesicle layer using hydrophobic interactions, which exhibits centered rectangular lattice symmetry. To create the highly ordered AuNPs superlattice, the P(EGx-b-iPGEy) block copolymers that form the thickness of the hydrophobic vesicle layer comparable to the size of the AuNP are used as a template to control the AuNP degree of freedom. To the best of our knowledge, this study provides the first demonstration of a centered rectangular structure formation of AuNPs at the vesicle layer in 2D confined geometry.

AB - Self-assembly of gold nanoparticles (AuNPs) into highly ordered superstructures provides a promising route toward fabricating materials with new functionalities or enhanced physical properties. Although self-assembly of AuNPs has garnered significant research attention recently, a highly ordered superlattice of AuNPs under a low concentration in a confined geometry formed by nonfunctionalized materials has not been reported. Herein, we investigate the self-assembly of a 2D AuNPs superlattice in a polymer vesicle layer using hydrophobic interactions, which exhibits centered rectangular lattice symmetry. To create the highly ordered AuNPs superlattice, the P(EGx-b-iPGEy) block copolymers that form the thickness of the hydrophobic vesicle layer comparable to the size of the AuNP are used as a template to control the AuNP degree of freedom. To the best of our knowledge, this study provides the first demonstration of a centered rectangular structure formation of AuNPs at the vesicle layer in 2D confined geometry.

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Self-Assembly of 2D Gold Nanoparticle Superlattice in a Polymer Vesicle Layer Driven by Hydrophobic Interaction

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