PEGylated Gold Nanoparticles with Interesting Plasmonic Properties Synthesized Using an Original, Rapid, and Easy-to-Implement Procedure
Joint Authors
Stiufiuc, Rares
Stiufiuc, Gabriela
Lucaciu, Constantin M.
Berindan-Neagoe, Ioana
Nițică, Ștefan
Moldovan, Alin Iulian
Toma, Valentin
Moldovan, Cristian Silviu
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In this letter, we report a new, one-step, rapid, and easy-to-implement method for the synthesis of PEGylated gold nanoparticles (PEG-AuNPs) having a narrow size distribution and very interesting plasmonic properties.
Unmodified polyethylene glycol molecules with a molecular weight of 1000 g/mole (PEG1000) have been employed as reducing and capping agents for the synthesis of spherical gold nanoparticles having an average diameter of 35 nm, within a few minutes.
The novelty of the herein proposed synthesis method consists in the fact that the synthesis takes place inside of a sealed bottle flask containing aqueous solutions of PEG1000, tetrachloroauric(III) acid (HAuCl4), and NaOH, placed in the center of a microwave oven, capable to provide a very uniform temperature environment.
It turned out that, during the very short synthesis procedure (2 minutes), PEG 1000 suffers an oxidative transformation in such a manner that its terminal alcohol groups (-CH2-OH) are transformed in carboxylate ones (-COO−).
The as-synthesized PEG-AuNPs possess very interesting plasmonic properties allowing the detection of different molecules by means of SER spectroscopy performed either in liquid droplets or on solid spots.
As a consequence of their unique plasmonic properties, the SER spectra acquired using this new class of nanoparticles on different molecules of interest (methylene blue, rhodamine 6G, doxorubicin, and 5-fluorouracil) are highly reproducible, making them ideal candidates for further use as SERS substrates.
American Psychological Association (APA)
Nițică, Ștefan& Moldovan, Alin Iulian& Toma, Valentin& Moldovan, Cristian Silviu& Berindan-Neagoe, Ioana& Stiufiuc, Gabriela…[et al.]. 2018. PEGylated Gold Nanoparticles with Interesting Plasmonic Properties Synthesized Using an Original, Rapid, and Easy-to-Implement Procedure. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194443
Modern Language Association (MLA)
Nițică, Ștefan…[et al.]. PEGylated Gold Nanoparticles with Interesting Plasmonic Properties Synthesized Using an Original, Rapid, and Easy-to-Implement Procedure. Journal of Nanomaterials No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1194443
American Medical Association (AMA)
Nițică, Ștefan& Moldovan, Alin Iulian& Toma, Valentin& Moldovan, Cristian Silviu& Berindan-Neagoe, Ioana& Stiufiuc, Gabriela…[et al.]. PEGylated Gold Nanoparticles with Interesting Plasmonic Properties Synthesized Using an Original, Rapid, and Easy-to-Implement Procedure. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194443