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Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates
นักวิจัย : He, Hui-Xin , Zhang, Hua , Li, Qi Guang , Zhu, Tao , Li, S. F. Y. , Liu, Zhong-Fan
คำค้น : DRNTU::Engineering::Materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2543
อ้างอิง : He, H. X., Zhang, H., Li, Q. G., Zhu, T., Li, S. F. Y., & Liu, Z. F. (2000). Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates. Langmuir, 16(8), 3846-3851. , 0743-7463 , http://hdl.handle.net/10220/8568 , http://dx.doi.org/10.1021/la991356v
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Langmuir
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This paper provides a convenient method for fabricating architectures of Au nanoparticles on solid substrate,with precise position and density control. Our strategy is to modify Au substrate with self-assembled monolayers (SAMs) terminated with different functional groups. They were chosen to be −CH3/−NH2 or −CH3/−SH according to their affinities to Au nanoparticle. Au nanoparticles assemble selectively on −NH2 or −SH terminated locations, the −NH2 functional group binding electrostatically to the nanoparticles whereas the −SH groups bonding chemically. The SAMs, acting as guiding templates for Au nanoparticles, were fabricated by the microcontact printing (μCP) technique. A patterned or unpatterned SAM was prepared by using patterned or unpatterned poly(dimethyl)siloxane (PDMS) stamp, respectively. The coverage of −CH3 terminated SAM in the contact region is controlled by changing the concentration of “ink” solution for the stamp. After immersing the printed SAM into −SH or −NH2 thiol solutions for 2 h, a mixed SAM with a predetermined coverage of −SH or −NH2 was formed in the contact regions, and a pure −SH or −NH2 SAM was formed in the intervening area. The position and density of nanoparticles on the surface were determined by the distribution of the underlying functional groups.

บรรณานุกรม :
He, Hui-Xin , Zhang, Hua , Li, Qi Guang , Zhu, Tao , Li, S. F. Y. , Liu, Zhong-Fan . (2543). Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
He, Hui-Xin , Zhang, Hua , Li, Qi Guang , Zhu, Tao , Li, S. F. Y. , Liu, Zhong-Fan . 2543. "Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
He, Hui-Xin , Zhang, Hua , Li, Qi Guang , Zhu, Tao , Li, S. F. Y. , Liu, Zhong-Fan . "Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2543. Print.
He, Hui-Xin , Zhang, Hua , Li, Qi Guang , Zhu, Tao , Li, S. F. Y. , Liu, Zhong-Fan . Fabrication of designed architectures of Au nanoparticles on solid substrate with printed self-assembled monolayers as templates. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2543.