| 학회 | 한국공업화학회 |
| 학술대회 | 2005년 봄 (05/13 ~ 05/14, 충남대학교) |
| 권호 | 9권 1호 |
| 발표분야 | 나노 |
| 제목 | Control of Gold Nanoparticle Aggregates by Manipulation of Interparticle Interaction |
| 초록 | We control the size and stability of gold nanoparticle aggregates in aqueous solution by manipulating the inter-particle interaction. Various experimental techniques such as quasi-elastic light scattering (QELS), UV-vis absorption spectroscopy, and surface-enhanced Raman scattering (SERS) are used to characterize the nanoparticle aggregates. Our findings suggest that replacing the trivalent citrate ions adsorbed on the particle surface with monovalent mercaptan ions destabilizes the particles, causing aggregation and the increase in final size. This is successfully explained by the classical DLVO (Derjaguin-Landa-Vervey-Overbeek) theory that describes the inter-particle interactions and colloidal stability in solution. Acknowledgements: This work was supported by grant No. R01-2004-000-10944-0 from the Basic Research Program of the Korea Science & Engineering Foundation. |
| 저자 | 이강택1, 김태훈1, 전명석2, 주상우3 |
| 소속 | 1연세대, 2한국과학기술(연), 3숭실대 |
| 키워드 | gold; nanoparticles; aggregates; interparticle interaction |
