Abstract
| Language | English |
|---|---|
| Pages | 6697-6701 |
| Number of pages | 5 |
| Journal | Analytical Chemistry |
| Volume | 79 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 3 Aug 2007 |
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Keywords
- bioaffinity sensors
- adsorption
- gold nanoparticles
- diffraction gratings
- plasmons
- unmodified DNA
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Nanoparticle-enhanced diffraction gratings for ultrasensitive surface plasmon biosensing. / Wark, A.W.; Lee, Hye Jin; Qavi, A.J.; Corn, R.M.
In: Analytical Chemistry, Vol. 79, No. 17, 03.08.2007, p. 6697-6701.Research output: Contribution to journal › Article
TY - JOUR
T1 - Nanoparticle-enhanced diffraction gratings for ultrasensitive surface plasmon biosensing
AU - Wark, A.W.
AU - Lee, Hye Jin
AU - Qavi, A.J.
AU - Corn, R.M.
PY - 2007/8/3
Y1 - 2007/8/3
N2 - Ultrasensitive surface bioaffinity sensors are created by the adsorption of gold nanoparticles onto gold diffraction gratings. An enhanced diffraction obtained in a surface plasmon resonance geometry is observed due to the optical coupling of the planar surface plasmons in the grating to the localized surface plasmons in the gold nanoparticles. As a first example, these nanoparticle grating biosensors are employed to detect unmodified DNA at a concentration of 10 fM.
AB - Ultrasensitive surface bioaffinity sensors are created by the adsorption of gold nanoparticles onto gold diffraction gratings. An enhanced diffraction obtained in a surface plasmon resonance geometry is observed due to the optical coupling of the planar surface plasmons in the grating to the localized surface plasmons in the gold nanoparticles. As a first example, these nanoparticle grating biosensors are employed to detect unmodified DNA at a concentration of 10 fM.
KW - bioaffinity sensors
KW - adsorption
KW - gold nanoparticles
KW - diffraction gratings
KW - plasmons
KW - unmodified DNA
U2 - 10.1021/ac071062b
DO - 10.1021/ac071062b
M3 - Article
VL - 79
SP - 6697
EP - 6701
JO - Analytical Chemistry
T2 - Analytical Chemistry
JF - Analytical Chemistry
SN - 0003-2700
IS - 17
ER -