دورية أكاديمية
Multifunctional spiky branched gold-silver nanostars with near-infrared and short-wavelength infrared localized surface plasmon resonances.
| العنوان: | Multifunctional spiky branched gold-silver nanostars with near-infrared and short-wavelength infrared localized surface plasmon resonances. |
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| المؤلفون: | Joseph D; Department of Energy and Materials Engineering, Dongguk University, Seoul, Republic of Korea. Electronic address: josephdixon1979@dongguk.edu., Baskaran R; College of Medicine, Inha University, Chungsuk Bldg., Seohae-Daero, Jung-Gu, Incheon 22332, Republic of Korea., Yang SG; College of Medicine, Inha University, Chungsuk Bldg., Seohae-Daero, Jung-Gu, Incheon 22332, Republic of Korea., Huh YS; Department of Biological Engineering, Inha University, Incheon, Republic of Korea. Electronic address: yunsuk.huh@inha.ac.kr., Han YK; Department of Energy and Materials Engineering, Dongguk University, Seoul, Republic of Korea. Electronic address: ykenergy@dongguk.edu. |
| المصدر: | Journal of colloid and interface science [J Colloid Interface Sci] 2019 Apr 15; Vol. 542, pp. 308-316. Date of Electronic Publication: 2019 Feb 07. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Academic Press Country of Publication: United States NLM ID: 0043125 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-7103 (Electronic) Linking ISSN: 00219797 NLM ISO Abbreviation: J Colloid Interface Sci Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: Orlando, FL : Academic Press Original Publication: New York. |
| مستخلص: | We report a one-pot seedless green method for the synthesis of gold-silver (AuAg) spiky branched nanostars, with gold (90%) being the major component. Here, the zwitterionic surfactant lauryl sulfobetaine (LSB) is employed in the synthesis of bimetallic nanostars. The concentration of LSB plays an important role in determining the shape of nano-objects. A minimum LSB concentration of 50 mM is required for the formation of spiky branched nanostars, the size of which is controlled by increasing the LSB concentration. Two distinct intense localized surface plasmon resonances in the near-infrared (NIR) and short-wavelength infrared ranges are observed. The molecular structure of LSB causes LSB molecules to assemble into spherical micelles that act as a soft template for the growth of the nano-objects. An analysis of the mechanisms behind the formation of the nanostars suggests that there is a rapid growth of spikes followed by the formation of a spherical core at the center. AuAg nanostars with evenly spaced spikes and low branching demonstrate great potential as efficient nanocatalysts, surface-enhanced Raman scattering-active substrates and for photothermal therapy, active in both the visible and NIR regions. (Copyright © 2019 Elsevier Inc. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Gold-Silver; Lauryl sulfobetaine; Nanocatalysts; Nanostar; Photothemal; SERS; Spiky Branched Nanostructure |
| تواريخ الأحداث: | Date Created: 20190215 Date Completed: 20190305 Latest Revision: 20190305 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.jcis.2019.01.132 |
| PMID: | 30763898 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-7103 |
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| DOI: | 10.1016/j.jcis.2019.01.132 |