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Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm
นักวิจัย : Guo, Longhua , Ferhan, Abdul Rahim , Chen, Hailan , Li, Changming , Chen, Guonan , Hong, Seungpyo , Kim, Dong-Hwan
คำค้น : DRNTU::Engineering::Chemical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Guo, L., Ferhan, A. R., Chen, H., Li, C., Chen, G., Hong, S., et al. (2013). Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm. Small, 9(2), 234-240. , 1613-6810 , http://hdl.handle.net/10220/18943 , http://dx.doi.org/10.1002/smll.201201061
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Small
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The first reconfigurable colorimetric DNA switches based on target DNA binding are reported. This DNA binding actuates a change in the interparticle distance between gold nanoparticle dimers. A significant spectral shift of 68 nm is achievable from on-off switching. The reconfigurability is possible owing to thiol and EDC-imidazole coupling which anchors the DNA linkers to the nanoparticles. The huge spectral shift allows the unaided eye to observe single target biomolecular binding event in real time under a darkfield microscope. The limit-of-detection for target molecules in PBS and human serum are 10−13 M and 10−11 M respectively. An improved fabrication strategy via asymmetric functionalization is also described, assisted by solid phase synthesis which minimizes the formation of trimers and multimers.

บรรณานุกรม :
Guo, Longhua , Ferhan, Abdul Rahim , Chen, Hailan , Li, Changming , Chen, Guonan , Hong, Seungpyo , Kim, Dong-Hwan . (2556). Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Guo, Longhua , Ferhan, Abdul Rahim , Chen, Hailan , Li, Changming , Chen, Guonan , Hong, Seungpyo , Kim, Dong-Hwan . 2556. "Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Guo, Longhua , Ferhan, Abdul Rahim , Chen, Hailan , Li, Changming , Chen, Guonan , Hong, Seungpyo , Kim, Dong-Hwan . "Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Guo, Longhua , Ferhan, Abdul Rahim , Chen, Hailan , Li, Changming , Chen, Guonan , Hong, Seungpyo , Kim, Dong-Hwan . Distance-mediated plasmonic dimers for reusable colorimetric switches : a measurable peak shift of more than 60 nm. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.