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Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering

Materials, 2017-01, Vol.10 (1), p.68-68 [Peer Reviewed Journal]

Copyright MDPI AG 2017 ;2017 by the authors. 2017 ;ISSN: 1996-1944 ;EISSN: 1996-1944 ;DOI: 10.3390/ma10010068 ;PMID: 28772428

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Title:
Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering
Author: Ren, Suxia ; Dong, Lili ; Zhang, Xiuqiang ; Lei, Tingzhou ; Ehrenhauser, Franz ; Song, Kunlin ; Li, Meichun ; Sun, Xiuxuan ; Wu, Qinglin
Subjects: Cellulose ; cellulose nanocrystal ; Computer numerical control ; Electrospinning ; Heat treatment ; Morphology ; Nanocrystals ; Nanofibers ; Nanoparticles ; Organic chemistry ; Photoelectrons ; Polyacrylonitrile ; Polyacrylonitriles ; Precursors ; Raman scattering ; Raman spectra ; Rheological properties ; Rheology ; Sensitivity ; Silver ; silver nanoparticles ; Substrates ; surface-enhanced Raman scattering ; Thermal stability ; Thermodynamic properties ; X ray photoelectron spectroscopy ; X-ray diffraction
Is Part Of: Materials, 2017-01, Vol.10 (1), p.68-68
Description: Nanofibers with excellent activities in surface-enhanced Raman scattering (SERS) were developed through electrospinning precursor suspensions consisting of polyacrylonitrile (PAN), silver nanoparticles (AgNPs), silicon nanoparticles (SiNPs), and cellulose nanocrystals (CNCs). Rheology of the precursor suspensions, and morphology, thermal properties, chemical structures, and SERS sensitivity of the nanofibers were investigated. The electrospun nanofibers showed uniform diameters with a smooth surface. Hydrofluoric (HF) acid treatment of the PAN/CNC/Ag composite nanofibers (defined as p-PAN/CNC/Ag) led to rougher fiber surfaces with certain pores and increased mean fiber diameters. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results confirmed the existence of AgNPs that were formed during heat and HF acid treatment processes. In addition, thermal stability of the electrospun nanofibers increased due to the incorporation of CNCs and AgNPs. The p-PAN/CNC/Ag nanofibers were used as a SERS substrate to detect p-aminothiophenol (p-ATP) probe molecule. The results show that this substrate exhibited high sensitivity for the p-ATP probe detection.
Publisher: Switzerland: MDPI AG
Language: English
Identifier: ISSN: 1996-1944
EISSN: 1996-1944
DOI: 10.3390/ma10010068
PMID: 28772428
Source: GFMER Free Medical Journals
PubMed Central
ROAD: Directory of Open Access Scholarly Resources
ProQuest Central
DOAJ Directory of Open Access Journals

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Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering

Copyright MDPI AG 2017 ;2017 by the authors. 2017 ;ISSN: 1996-1944 ;EISSN: 1996-1944 ;DOI: 10.3390/ma10010068 ;PMID: 28772428

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