Synthesis and Characterization of Gold Nanoparticles with Plasmon Absorbance Wavelength Tunable from Visible to Near Infrared Region
Joint Authors
Tang, Liang
Casas, Justin
Venkataramasubramani, Meenakshi
Shi, Weihong
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Gold nanorods with localized surface plasmon resonance (LSPR) can be chemically synthesized.
We systematically investigated the effects of reaction parameters and centrifugation on the fine tuning of the rod dimension in scale-up production (80–100 mL).
Nanorods of absorption bands from 600–1050 nm were fabricated with precise control of the aspect ratio (AR) from 1.5 to 8.9.
Although all chemicals are important in directing the nanostructure, silver ion concentration and seed/Au3+ ratio were the most effective variations to adjust the absorption wavelength.
With a single surfactant under the influence of silver nitrate, short nanorods up to AR of 5 were synthesized with corresponding maximum absorption wavelength at 902 nm.
To achieve higher aspect ratio with absorption band beyond 1,000 nm, two-surfactant growth solution was sought to further elongate the rod length.
Centrifugation speed and times were found to exert significant influences on the final rod dimension, which is important during the purification process.
In a relatively large quantity nanorod synthesis, even distribution and sufficient mixing of chemical ingredients play an essential role in determining the yield, uniformity, and stability of the final nanorod formation.
American Psychological Association (APA)
Shi, Weihong& Casas, Justin& Venkataramasubramani, Meenakshi& Tang, Liang. 2012. Synthesis and Characterization of Gold Nanoparticles with Plasmon Absorbance Wavelength Tunable from Visible to Near Infrared Region. ISRN Nanomaterials،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-488966
Modern Language Association (MLA)
Shi, Weihong…[et al.]. Synthesis and Characterization of Gold Nanoparticles with Plasmon Absorbance Wavelength Tunable from Visible to Near Infrared Region. ISRN Nanomaterials No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-488966
American Medical Association (AMA)
Shi, Weihong& Casas, Justin& Venkataramasubramani, Meenakshi& Tang, Liang. Synthesis and Characterization of Gold Nanoparticles with Plasmon Absorbance Wavelength Tunable from Visible to Near Infrared Region. ISRN Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-488966
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488966