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Sensors 2015, 15(9), 21427-21477; doi:10.3390/s150921427

Biomedical Probes Based on Inorganic Nanoparticles for Electrochemical and Optical Spectroscopy Applications

1
Electrochemistry and Optical Spectroscopy Research Unit (EOSRU), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand
2
Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
*
Authors to whom correspondence should be addressed.
Academic Editor: Shinya Maenosono
Received: 30 June 2015 / Revised: 7 August 2015 / Accepted: 10 August 2015 / Published: 28 August 2015
(This article belongs to the Special Issue Inorganic Nanoparticles as Biomedical Probes)
View Full-Text   |   Download PDF [2087 KB, uploaded 28 August 2015]   |  

Abstract

Inorganic nanoparticles usually provide novel and unique physical properties as their size approaches nanometer scale dimensions. The unique physical and optical properties of nanoparticles may lead to applications in a variety of areas, including biomedical detection. Therefore, current research is now increasingly focused on the use of the high surface-to-volume ratios of nanoparticles to fabricate superb chemical- or biosensors for various detection applications. This article highlights various kinds of inorganic nanoparticles, including metal nanoparticles, magnetic nanoparticles, nanocomposites, and semiconductor nanoparticles that can be perceived as useful materials for biomedical probes and points to the outstanding results arising from their use in such probes. The progress in the use of inorganic nanoparticle-based electrochemical, colorimetric and spectrophotometric detection in recent applications, especially bioanalysis, and the main functions of inorganic nanoparticles in detection are reviewed. The article begins with a conceptual discussion of nanoparticles according to types, followed by numerous applications to analytes including biomolecules, disease markers, and pharmaceutical substances. Most of the references cited herein, dating from 2010 to 2015, generally mention one or more of the following characteristics: a low detection limit, good signal amplification and simultaneous detection capabilities. View Full-Text
Keywords: biomedical probes; inorganic nanoparticles; electrochemical detection; colorimetry; spectrophotometric detection; biosensors; bioanalysis biomedical probes; inorganic nanoparticles; electrochemical detection; colorimetry; spectrophotometric detection; biosensors; bioanalysis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Yakoh, A.; Pinyorospathum, C.; Siangproh, W.; Chailapakul, O. Biomedical Probes Based on Inorganic Nanoparticles for Electrochemical and Optical Spectroscopy Applications. Sensors 2015, 15, 21427-21477.

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