Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses

Han Zhang; Yang Chen; Ka Kit Chui; Jiapeng Zheng; Yicong Ma; Danjun Liu; Zhifeng Huang; Dangyuan Lei; Jianfang Wang

doi:10.1002/smll.202301476

Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses

Han Zhang (Co-first Author)
, Yang Chen (Co-first Author)
, Ka Kit Chui
, Jiapeng Zheng
, Yicong Ma
, Danjun Liu
, Zhifeng Huang
, Dangyuan Lei
, Jianfang Wang^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

64 Downloads (CityUHK Scholars)

Abstract

The introduction of structural complexity to nanoparticles brings them interesting properties. Regularity breaking has been challenging in the chemical synthesis of nanoparticles. Most reported chemical methods for synthesizing irregular nanoparticles are complicated and laborious, largely hindering the exploration of structural irregularity in nanoscience. In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses. © 2023 The Authors. Small published by Wiley-VCH GmbH.

Original language	English
Article number	2301476
Journal	Small
Volume	19
Issue number	26
Online published	22 Mar 2023
DOIs	https://doi.org/10.1002/smll.202301476
Publication status	Published - 28 Jun 2023

Funding

H.Z. and Y.C. contributed equally to this work. This work was supported by the Research Grants Council (RGC) of Hong Kong (Grant No. ANR/ RGC, A-CUHK404/21) and The Chinese University of Hong Kong (Direct Grant, No. 4053468). H.Z. thanks support from the RGC of Hong Kong through the Hong Kong Postgraduate Fellowship Scheme (HKPFS). H.Z. also thanks Ms Guili Zhao for valuable discussion about this work.

Research Keywords

bitten nanoparticles
chirality
chiroptical responses
plasmon resonance
seed-mediated growth

Publisher's Copyright Statement

This full text is made available under CC-BY-NC 4.0. https://creativecommons.org/licenses/by-nc/4.0/

RGC Funding Information

RGC-funded

Access Output

10.1002/smll.202301476

145342082.pdfFinal Published version, 9.78 MBLicence: CC BY-NC

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{fa6c128b479940f09250f937c7768655,

title = "Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses",

abstract = "The introduction of structural complexity to nanoparticles brings them interesting properties. Regularity breaking has been challenging in the chemical synthesis of nanoparticles. Most reported chemical methods for synthesizing irregular nanoparticles are complicated and laborious, largely hindering the exploration of structural irregularity in nanoscience. In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses. {\textcopyright} 2023 The Authors. Small published by Wiley-VCH GmbH.",

keywords = "bitten nanoparticles, chirality, chiroptical responses, plasmon resonance, seed-mediated growth",

author = "Han Zhang and Yang Chen and Chui, \{Ka Kit\} and Jiapeng Zheng and Yicong Ma and Danjun Liu and Zhifeng Huang and Dangyuan Lei and Jianfang Wang",

year = "2023",

month = jun,

day = "28",

doi = "10.1002/smll.202301476",

language = "English",

volume = "19",

journal = "Small",

issn = "1613-6810",

publisher = "Wiley-VCH Verlag GmbH",

number = "26",

}

TY - JOUR

T1 - Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses

AU - Zhang, Han

AU - Chen, Yang

AU - Chui, Ka Kit

AU - Zheng, Jiapeng

AU - Ma, Yicong

AU - Liu, Danjun

AU - Huang, Zhifeng

AU - Lei, Dangyuan

AU - Wang, Jianfang

PY - 2023/6/28

Y1 - 2023/6/28

N2 - The introduction of structural complexity to nanoparticles brings them interesting properties. Regularity breaking has been challenging in the chemical synthesis of nanoparticles. Most reported chemical methods for synthesizing irregular nanoparticles are complicated and laborious, largely hindering the exploration of structural irregularity in nanoscience. In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses. © 2023 The Authors. Small published by Wiley-VCH GmbH.

AB - The introduction of structural complexity to nanoparticles brings them interesting properties. Regularity breaking has been challenging in the chemical synthesis of nanoparticles. Most reported chemical methods for synthesizing irregular nanoparticles are complicated and laborious, largely hindering the exploration of structural irregularity in nanoscience. In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses. © 2023 The Authors. Small published by Wiley-VCH GmbH.

KW - bitten nanoparticles

KW - chirality

KW - chiroptical responses

KW - plasmon resonance

KW - seed-mediated growth

UR - https://www.scopus.com/pages/publications/85150885822

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85150885822&origin=recordpage

U2 - 10.1002/smll.202301476

DO - 10.1002/smll.202301476

M3 - RGC 21 - Publication in refereed journal

SN - 1613-6810

VL - 19

JO - Small

JF - Small

IS - 26

M1 - 2301476

ER -

Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this