Journal ArticleDOI
Reusable plasmonic aptasensors: using a single nanoparticle to establish a calibration curve and to detect analytes
Longhua Guo,Dong-Hwan Kim +1 more
TLDR
Plasmonic aptasensors that allow a single nanoparticle (NP) to generate a calibration curve and to detect analytes and have significant advantages over conventional single-NP based assays in terms of sensitivity and reproducibility are demonstrated.About:
This article is published in Chemical Communications.The article was published on 2011-06-14. It has received 33 citations till now. The article focuses on the topics: Calibration curve.read more
Citations
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Journal ArticleDOI
Strategies for enhancing the sensitivity of plasmonic nanosensors
Longhua Guo,Longhua Guo,Joshua A. Jackman,Huanghao Yang,Peng Chen,Nam-Joon Cho,Dong-Hwan Kim +6 more
TL;DR: In this article, a review highlights recent progress on different strategies used for improving the sensitivity of plasmonic nanosensors, classified into three categories based on their different sensing mechanisms: (1) sensing based on target-induced local refractive index changes, (2) colorimetric sensing, and (3) amplification of detection sensitivity based on nanoparticle growth.
Journal ArticleDOI
Detection, Counting, and Imaging of Single Nanoparticles
Wei Wang,Nongjian Tao +1 more
TL;DR: This review focuses on applications of single nanoparticles in analytical chemistry, and discusses chemical sensing applications, where the signal transduction or readout is based on detecting a physical property, such as optical absorption, of each individual nanoparticles.
Journal ArticleDOI
Individual nanostructured materials: fabrication and surface-enhanced Raman scattering
TL;DR: A systematic overview on the fabrication and SERS studies of individual nanoparticulates, nano-junctions and hierarchical nano-aggregate have great potential in designing novel highly sensitive SERS substrates for the development of SERS-based sensing devices with a broad range of applications.
Journal ArticleDOI
Au Nanorod Decoration on NaYF4:Yb/Tm Nanoparticles for Enhanced Emission and Wavelength-Dependent Biomolecular Sensing
TL;DR: In this article, gold nanorods (GNRs) decoration on NaYF4:Yb/Tm upconversion nanocrystals (UCNCs) was introduced.
Journal ArticleDOI
Hot Spot-Localized Artificial Antibodies for Label-Free Plasmonic Biosensing.
TL;DR: A relatively fast and efficient plasmonic hot spot‐localized surface imprinting of gold nanorods using reversible template immobilization and siloxane copolymerization is described, which enables a fine control of the imprinting process at the nanometer scale and provides a nanobiosensor with high selectivity and reusability.
References
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Journal ArticleDOI
Biosensing with plasmonic nanosensors
TL;DR: This paper introduces the localized surface plasmon resonance (LSPR) sensor and describes how its exquisite sensitivity to size, shape and environment can be harnessed to detect molecular binding events and changes in molecular conformation.
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Localized Surface Plasmon Resonance Spectroscopy and Sensing
TL;DR: This review describes recent fundamental spectroscopic studies that reveal key relationships governing the LSPR spectral location and its sensitivity to the local environment, including nanoparticle shape and size and introduces a new form of L SPR spectroscopy, involving the coupling between nanoparticle plasmon resonances and adsorbate molecular resonances.
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Preparation and Growth Mechanism of Gold Nanorods (NRs) Using Seed-Mediated Growth Method
TL;DR: In this article, a method was used for preparing gold NRs with aspect ratios ranging from 1.5 to 4.5 for which the surface plasmon absorption maxima are between 600 and 1300 nm.
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Seed‐Mediated Growth Approach for Shape‐Controlled Synthesis of Spheroidal and Rod‐like Gold Nanoparticles Using a Surfactant Template
TL;DR: In this article, the authors estimate the time it takes for the polymer melt to fill up the void space between the mold and the polymer film, such that the time is given by t 2 z 2 2