Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
권호 표지

Ultrasonic, Chemical Stability and Preparation of Self-Assembled Fullerene$[C_{70}]$-Gold Nanoparticle Films

자기조립 풀러렌$[C_{70}]$-금 나노입자 필름 제조와 초음파적, 화학적 안정성

  • 고원배 (삼육대학교 화학과) ;
  • 손영석 (Western Kentucky University 화학과)
  • Published : 2005.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

[ $C_{70}$ ]-gold nanoparticle multilayer films were self-assembled using a 'dirt-ball' method on the reactive surface of glass slides functionalized with 3-aminopropyltrimethoxysilane. The functionalized glass slides were soaked in the solution containing both unmodified $C_{70}$ and ${\omega}$-amino-functionalized gold nanoparticles. Organic reaction (amination) facilitated the assembly of multilayer $C_{70}$-gold nanoparticle films, which have grown up to several layers. Chemical stability of $C_{70}$-gold nanoparticle films was studied by monitoring the changes in absorbance after the immersion of the films in acidic solution. In addition, ultrasonic stability of these nanoparticle films was studied by exposing them to ultrasonic irradiated surrounding, which resulted in partial desorption and a little aggregation of nanoparticles on solid surfaces.

3-aminopropyltrimethoxysilane을 처리한 반응성 있는 유리표면 위에 'dirt-ball' 방법을 사용하여 $C_{70}$-금 나노입자 다중성막 필름을 자기조립하였다. 표면처리한 유리막을 $C_{70}$ 과 ${\omega}$-아미노기를 가진 금 나노입자를 포함하고 있는 용액속에 담그었다. 유기반응(아민화 반응)은 여러층으로 쌓인 다중성막 $C_{70}$-금 나노입자 필름을 용이하게 자기조립 할 수 있었다. $C_{70}$-금 나노입자 필름의 화학적 안정성은 산성용액에 필름을 담근후 흡수도의 변화를 측정함으로 조사되었다. 또한 나노입자 필름의 초음파적 안정성은 초음파 조건에 $C_{70}$-금 나노입자 필름을 노출하여 초음파를 조사 시킨후 고체 표면 위에 부분적인 탈착도의 변화와 작은 정도의 응집성이 일어남을 알 수 있었다.

Keywords

References

  1. R. P. Andres, J. D. Bielefeld, J. I. Henderson, D. V. Janes, V. R. Kolagunta, C. P. Kubiak, W. J. Mahoney, and R. G. Osifchin, 'Self-Assembly of a Two-Dimensional Superlattice of Molecularly Linked Metal Clusters', Science, 273, 1690 (1996)
  2. F. P. Zarnborini, J. F. Hicks, and R. W. Murray, 'Quantized Double Layer Charging of Nanoparticle Films Assembled Using Carboxylate/($Cu^{2+}$or $Zn^{2+}$)/ Carboxylate Bridges', J. Am. Chem. Soc., 122(18), 4514 (2000)
  3. J. Kolny, A. Kornowski, and H.Weller, 'Self-Organization of Cadmium Sulfide and Gold Nanoparticles by Electrostatic Interaction', Nano. lett., 2(4), 361 (2002)
  4. S. Sun, S. Anders, H. F. Hamann, J. Thiele, J. EE. Baglin, T. Thomson, E. E. Fullerton, C. B. Murray, and B. D. Terris, 'Polymer Mediated Self-Assembly of Magnetic Nanoparticles', J. Am. Chem. Soc., 124(12), 2884 (2002)
  5. Y. S. Shon, and H. Choo, '[60]Fullerene-Linked Gold Nanoparticles: Synthesis and Layer-by-Layer Growth on a Solid Surface', Chem. Cornrnun., 2560 (2002)
  6. F. Deng, Y. Yang, S. Hwang, Y. S. Shon, and S. Chen, 'Fullerene-Functionalized Gold Nanoparticles: Electrochemical and SpectroscopicProperties', Anal. Chem., 76(20), 6102 (2004)
  7. S. R. Isaacs, H. Choo, W. B. Ko, and Y. S. Shon, 'Chemical, Thermal, and Ultrasonic Stability of Hybrid Nanoparticles and Nanoparticle Multilayers', Chem. Mater., ASAP article