• Study on Electron Beam Irradiation Dose Prediction Method for the Synthesis of Gold Nanoparticles Stabilized with Polymers

  • Hong-Ki Choi, In-Tae Hwang, Junhwa Shin, Jong-Hyun Jung, Hyun-Bin Kim, and Chan-Hee Jung†

  • Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Jeollabuk-do 56212, Korea

  • 고분자로 안정화된 금 나노입자 합성을 위한 전자선 조사 선량 예측방법 연구

  • 최홍기 · 황인태 · 신준화 · 정종현 · 김현빈 · 정찬희†

  • 한국원자력연구원 첨단방사선연구소

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

This study aimed to develop a Geant4-DNA-based dose prediction method for the efficient and size-controllable electron beam-induced synthesis of gold nanoparticles (AuNPs) stabilized with polymers, and to analyze factors influencing their sizes. The required dose for the complete reduction of 0.5 mM HAuCl4 precursors was predicted using the computational G-values representing yields of chemical species formed from electron beam radiolysis of water, and compared with measured values. The UV-vis and TEM results revealed that both polymer stabilizer and dose rate act as reaction factors directly influencing the plasmon resonance bands and sizes of AuNPs synthesized by electron beam irradiation.


본 연구에서는 전자선 조사를 통해 제조하는 금 나노입자의 크기와 조사 선량과의 상관 관계를 예측하기 위해 Geant4-DNA 전사모사 방법을 고안하였다. 물의 전자선 분해로 생성되는 화학종의 수득율인 G값 산출을 통해 0.5 mM HAuCl4 전구체의 완전한 환원에 요구되는 선량을 전산모사 방법으로 예측하였고 이를 실험 측정값과 비교하였다. 전자선을 이용하여 합성된 금 나노입자의 UV-vis와 TEM 분석 결과, 고분자 안정화제와 조사 선량율이 금 나노입자의 플라스몬 공명 밴드와 나노입자 크기에 직접적인 영향을 주는 반응 인자로 작용함을 확인하였다.


Keywords: gold nanoparticles, electron beam-induced radiolysis, dose prediction, polymer stabilizer, dose rate.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 2025; 49(5): 618-625

    Published online Sep 25, 2025

  • 10.7317/pk.2025.49.5.618
  • Received on Mar 25, 2025
  • Revised on Apr 28, 2025
  • Accepted on May 27, 2025

Correspondence to

  • Chan-Hee Jung

  • Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Jeollabuk-do 56212, Korea

  • E-mail: jch@kaeri.re.kr