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Zhang Y, Huang X, Chen J, Li J, Chen J. In situ assembly of silver nanoparticles throughout electrospun oriented alginate nanofibers for hazardous rust trace detection on bronze. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123739. [PMID: 38103354 DOI: 10.1016/j.saa.2023.123739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/26/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
A convenient and reliable surface-enhanced Raman scattering (SERS) substrate has been developed for the surface corrosion analysis of bronze artifacts. The substrate consists of oriented alginate nanofiber membranes containing silver nanoparticles (Ag NPs), which were obtained through electrostatic spinning, ion exchange, and in-situ reduction. By controlling the reduction time, Ag/alginate nanofiber membranes with different contents, sizes, and distributions were obtained. The Ag/alginate nanofiber#20 membranes, obtained with a reduction time of 20 min, reached a detection limit of 10-12 M for R6G with an enhancement factor of 6.64 × 107. In the trace detection of bronze patina, the intensity of the characteristic peaks of harmful patina located at 513, 846, 911, and 974 cm-1 were increased by more than 500 %. This was due to the uniform loading of a large number of Ag NPs on the surface of the nanofiber membrane obtained by reduction for 20 min, and the formation of a large number of hot spots between the oriented nanofibers. This significantly improved the SERS performance of the flexible substrate layer under the joint action with the Ag NPs. These results indicate that the flexible substrate layer can greatly enhance the Raman characteristic peaks of alkali copper chloride and be effectively used for trace analysis of the surface composition of bronze artifacts.
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Affiliation(s)
- Yahui Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Xia Huang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China.
| | - Jiachang Chen
- Henan Provincal Institute of Cultural Relices and Archaeology, Zhengzhou, Henan 450000, PR China.
| | - Jiyuan Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Junying Chen
- School of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, PR China
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2
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Arzhanukhina AI, Komova NS, Pavlov AM, Serdobintsev AA, Rusanova TY, Goryacheva IY. SERS Assays Based on Electrospun Nanofibers: Preparation and Analytical Applications. Crit Rev Anal Chem 2023:1-16. [PMID: 36692442 DOI: 10.1080/10408347.2023.2165876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool and an up-to-date method of analytical chemistry due to its high sensitivity and fingerprint recognition capabilities. Nowadays SERS due to its label-free detection capabilities is being actively developed in medical fields, for example in the analysis of biologically important substances in different matrixes, for potential on-site detection of toxic substances, food safety, and so on. To get the SERS signal, it is necessary the presence of plasmonic nanostructures in the SERS substrates. Electrospun nanofibers have been an attractive alternative to SERS-platforms due to the diversity of advantages, including ease of preparation, structure flexibility, and others. In this review, we summarized the methods of plasmonic nanostructures incorporating substrate based on electrospun nanofibers. Also, the analytical application of SERS-active electrospun nanofibers with embedded nanostructures focused on biologically significant molecules is observed in detail. Finally, the future outlook in the application of these substrates in bioanalysis as the most promising area in analytical chemistry is presented.
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Affiliation(s)
| | - Nadezhda S Komova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Anton M Pavlov
- Institute of Physics, Saratov State University, Saratov, Russia
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3
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Fabrication of Ag NPs decorated on electrospun PVA/PEI nanofibers as SERS substrate for detection of enrofloxacin. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01299-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Pan X, Bai L, Pan C, Liu Z, Ramakrishna S. Design, Fabrication and Applications of Electrospun Nanofiber-Based Surface-Enhanced Raman Spectroscopy Substrate. Crit Rev Anal Chem 2021; 53:289-308. [PMID: 34284659 DOI: 10.1080/10408347.2021.1950522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is an advanced and powerful analysis tool. Due to the advantages of high sensitivity, high resolution, and nondestructive testing, it has been widely used in physics, chemistry, material science and other fields. In recent years, substantial progress has been made in developing flexible platforms for the design and fabrication of SERS substrates. One important kind of the flexible platforms is based on electrospun nanofibers. Electrospun nanofibers not only have unique advantages such as easy preparation, high porosity and large specific surface area, but also can increase the number of hotspots when combined with precious metal nanomaterials, thereby enhancing the SERS signal and expanding the application scope. In this review, we firstly focus on two strategies for the fabrication of metal nanostructure decorated in/on the electrospun nanofibers, namely in-situ and ex-situ. Then the applications of these SERS substrates in the fields of quantitative analysis, monitoring chemical reactions and recyclable detection are introduced in detail. Finally, the challenges as well as perspectives are presented to offer a guideline for the future exploration of these SERS substrates. We expect that it will provide new inspiration for the development of electrospun nanofiber-based SERS substrates.
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Affiliation(s)
- Xue Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Lu Bai
- Institute for Chemical Biology & Biosensing, and College of Life Sciences, Qingdao University, Qingdao, China
| | - Chengcheng Pan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhicheng Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao, China.,Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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Yadav S, Satija J. The current state of the art of plasmonic nanofibrous mats as SERS substrates: design, fabrication and sensor applications. J Mater Chem B 2021; 9:267-282. [PMID: 33241248 DOI: 10.1039/d0tb02137g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Surface-enhanced Raman scattering (SERS) is a widely used analytical tool that allows molecular fingerprint-based ultra-sensitive detection through an enhanced electromagnetic field generated by plasmonic metal nanoparticles (MNPs) by virtue of their localized surface plasmon resonance (LSPR). Although significant progress has been made in the design and fabrication of a variety of SERS substrates, MNP-decorated electrospun nanofibrous (NF) mats have attracted much attention due to their unique nanoscale structural and functional properties. This review focuses on the current state of the art in the fabrication of plasmonic NF mats with the main focus on the pre-mix, in situ, and ex situ approaches. The characteristic functional advantages and limitations of these strategies are also highlighted, which might be helpful for the research community when adopting a suitable approach. The potential of these plasmonic NF mats as a SERS-active optical sensor substrate, and their performance parameters such as the limit of detection, analytical range, and enhancement factor, and real-world applications are also discussed. The summary and futuristic discussion in this review might be of significant value in developing plasmonic NF mat-based SERS-active point-of-care diagnostic chips for a wide range of applications.
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Affiliation(s)
- Sangeeta Yadav
- School of Biosciences and Technology (SBST), Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Jitendra Satija
- Centre for Nanobiotechnology (CNBT), Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
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6
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Yang T, Zhan L, Huang CZ. Recent insights into functionalized electrospun nanofibrous films for chemo-/bio-sensors. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115813] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Ren S, Dong L, Zhang X, Lei T, Ehrenhauser F, Song K, Li M, Sun X, Wu Q. Electrospun Nanofibers Made of Silver Nanoparticles, Cellulose Nanocrystals, and Polyacrylonitrile as Substrates for Surface-Enhanced Raman Scattering. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E68. [PMID: 28772428 PMCID: PMC5344577 DOI: 10.3390/ma10010068] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 01/02/2017] [Accepted: 01/09/2017] [Indexed: 11/17/2022]
Abstract
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.
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Affiliation(s)
- Suxia Ren
- Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China.
| | - Lili Dong
- Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China.
| | - Xiuqiang Zhang
- Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China.
| | - Tingzhou Lei
- Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China.
| | - Franz Ehrenhauser
- Audubon Sugar Institute, Louisiana State University Ag Center, St. Gabriel, LA 70776, USA.
| | - Kunlin Song
- School of Renewable Natural Resources, Louisiana State University Ag Center, Baton Rouge, LA 70803, USA.
| | - Meichun Li
- School of Renewable Natural Resources, Louisiana State University Ag Center, Baton Rouge, LA 70803, USA.
| | - Xiuxuan Sun
- School of Renewable Natural Resources, Louisiana State University Ag Center, Baton Rouge, LA 70803, USA.
| | - Qinglin Wu
- School of Renewable Natural Resources, Louisiana State University Ag Center, Baton Rouge, LA 70803, USA.
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Zhang M, Zhao X, Zhang G, Wei G, Su Z. Electrospinning design of functional nanostructures for biosensor applications. J Mater Chem B 2017; 5:1699-1711. [DOI: 10.1039/c6tb03121h] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We summarize the recent advances in the electrospinning fabrication of hybrid polymer nanofibers decorated with functionalized nanoscale building blocks (NBBs) to obtain biosensors with better performances.
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Affiliation(s)
- Mingfa Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Xinne Zhao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Guanghua Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Gang Wei
- Hybrid Materials Interfaces Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
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9
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Yang T, Ma J, Zhen SJ, Huang CZ. Electrostatic Assemblies of Well-Dispersed AgNPs on the Surface of Electrospun Nanofibers as Highly Active SERS Substrates for Wide-Range pH Sensing. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14802-14811. [PMID: 27214514 DOI: 10.1021/acsami.6b03720] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Surface-enhanced Raman scattering (SERS) has shown high promise in analysis and bioanalysis, wherein noble metal nanoparticles (NMNPs) such as silver nanoparticles were employed as substrates because of their strong localized surface plasmon resonance (LSPR) properties. However, SERS-based pH sensing was restricted because of the aggregation of NMNPs in acidic medium or biosamples with high ionic strength. Herein, by using the electrostatic interaction as a driving force, AgNPs are assembled on the surface of ethylene imine polymer (PEI)/poly(vinyl alcohol) (PVA) electrospun nanofibers, which are then applied as highly sensitive and reproducible SERS substrate with an enhancement factor (EF) of 10(7)-10(8). When p-aminothiophenol (p-ATP) is used as an indicator with its b2 mode, a good and wide linear response to pH ranging from 2.56 to 11.20 could be available, and the as-prepared nanocomposite fibers then could be fabricated as excellent pH sensors in complicated biological samples such as urine, considering that the pH of urine could reflect the acid-base status of a person. This work not only emerges a cost-effective, direct, and convenient approach to homogeneously decorate AgNPs on the surface of polymer nanofibers but also supplies a route for preparing other noble metal nanofibrous sensing membranes.
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Affiliation(s)
- Tong Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University , Chongqing 400715, PR China
| | - Jun Ma
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400716, PR China
| | - Shu Jun Zhen
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400716, PR China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University , Chongqing 400715, PR China
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400716, PR China
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Surface-enhanced Raman spectroscopy in 3D electrospun nanofiber mats coated with gold nanorods. Anal Bioanal Chem 2015; 408:1357-64. [DOI: 10.1007/s00216-015-9226-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/19/2015] [Accepted: 11/26/2015] [Indexed: 01/09/2023]
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11
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Qiao M, Jiang J, Liu S, Yang J, Tan K, Zhu J, Shi Y, Hu X. Triple-wavelength overlapping resonance Rayleigh scattering method for facile and rapid assay of perfluorooctane sulfonate. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:658. [PMID: 26427844 DOI: 10.1007/s10661-015-4891-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
In the present study, a novel triple-wavelength overlapping resonance Rayleigh scattering (TWO-RRS) method had been well established to detect perfluorooctane sulfonate (PFOS). We found that crystal violet (CV) could react with PFOS to form 1:1 ion-association complex by electrostatic attraction and hydrophobic effect over a wide pH range (5.0∼11.0) in less than 60 s. The complexes would further self-aggregated into nanoparticles [CV-PFOS]n. Based on this phenomenon, not only the absorption and Raman spectra were changed but also the resonance Rayleigh scattering (RRS) intensities were significantly enhanced. And three new RRS peaks located at 327, 492, and 654 nm were clearly observed, respectively. At the same time, it was found that both the enhanced single-wavelength resonance Rayleigh scattering (SW-RRS) and TWO-RRS intensities against the concentration of PFOS showed an excellent correlation. The detection limits for the three single peaks were 27.4 nmol L(-1) (13.7 μg L(-1), 327 nm), 27.5 nmol L(-1) (13.8 μg L(-1), 492 nm), and 31.4 nmol L(-1) (15.7 μg L(-1), 654 nm), and for TWO-RRS method was 5.9 nmol L(-1) (3.0 μg L(-1)). Moreover, it could be applied to determine PFOS water samples successfully.
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Affiliation(s)
- Man Qiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Junze Jiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shaopu Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jidong Yang
- College of Chemical and Environmental Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing, 404100, China
| | - Kejun Tan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jinghui Zhu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ying Shi
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xiaoli Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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12
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Severyukhina AN, Parakhonskiy BV, Prikhozhdenko ES, Gorin DA, Sukhorukov GB, Möhwald H, Yashchenok AM. Nanoplasmonic chitosan nanofibers as effective SERS substrate for detection of small molecules. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15466-15473. [PMID: 26126080 DOI: 10.1021/acsami.5b03696] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of surface enhanced Raman spectroscopy (SERS) is limited by low reproducibility and uniformity of the response. Solving these problems can turn the laboratory use of SERS into real-world application. In this regard, soft SERS-active substrates can enable portable instrumentation and reduce costs in the fabrication of SERS-based sensors. Here, plasmonic free-standing films made of biocompatible chitosan nanofibers and gold nanoparticles are engineered by a simple protocol varying the concentration of chloroauric acid. The concentration and distribution of gold nanoparticles in films are controlled in a predictable way, and SERS spectra for the standard 2-naphthalenethiol with concentration less than 10(-15) M are acquired in a reproducible way. The statistical analysis reveals a relatively high and locally uniform performance of SERS with an enhancement factor of 2 × 10(5) for 86% of the points on the imaged area of the SERS substrate. Potential SERS detection of small molecules, both Rhodamine 6G and d-Glucose, in the micromolar range is demonstrated.
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Affiliation(s)
- Alexandra N Severyukhina
- †Remote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, 410012 Russia
| | - Bogdan V Parakhonskiy
- †Remote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, 410012 Russia
- ‡A.V. Shubnikov Institute of Crystallography RAS, Moscow, 119333 Russia
| | - Ekaterina S Prikhozhdenko
- †Remote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, 410012 Russia
| | - Dmitry A Gorin
- †Remote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, 410012 Russia
| | - Gleb B Sukhorukov
- §School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, U.K
| | - Helmuth Möhwald
- ∥Max-Planck Institute for Colloids and Interfaces, Potsdam, 14424 Germany
| | - Alexey M Yashchenok
- †Remote Controlled Theranostic Systems Lab, Institute of Nanostructures and Biosystem, Saratov State University, Saratov, 410012 Russia
- ∥Max-Planck Institute for Colloids and Interfaces, Potsdam, 14424 Germany
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Yang T, Zou HY, Huang CZ. Synergetic catalytic effect of Cu2-xSe nanoparticles and reduced graphene oxide coembedded in electrospun nanofibers for the reduction of a typical refractory organic compound. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15447-15457. [PMID: 26114332 DOI: 10.1021/acsami.5b03645] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new heterogeneous catalytic composite composed of nonstoichiometric Cu2-xSe nanoparticles (NPs) with high copper deficiency and graphene oxide (GO) is prepared by coembedding in electrospun nanofibers of a poly(vinylpyrrolidone) (PVP) support, wherein GO in the nanofibers is converted into reduced GO (rGO) via heat treatment. The as-prepared composite Cu2-xSe/rGO/PVP nanofibers have demonstrated superior catalytic activity toward the reduction of a refractory organic compound by taking 4-nitrophenol (4-NP) as an example. In the presence of NaBH4, the Cu2-xSe/rGO/PVP nanofibers display a synergetic effect between Cu2-xSe and rGO in PVP nanofibers compared to their independent components or corresponding nanofibers. Furthermore, the Cu2-xSe/rGO/PVP nanofibers exhibit a favorable water-stable property via heat treatment to solidify the hydrophilic PVP matrix, which makes the composite display good reusability, stability in aqueous solution, and separability from a water medium. This work not only presents a direct, convenient, and effective approach to doping semiconductor nanomaterials into polymer nanofibers but also provides fundamental routes for further investigations about the synergetic effect between different materials based on the platform of electrospun nanofibers.
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Affiliation(s)
- Tong Yang
- †Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Hong Yan Zou
- ‡College of Pharmaceutical Science, Southwest University, Chongqing 400716, P. R. China
| | - Cheng Zhi Huang
- †Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
- ‡College of Pharmaceutical Science, Southwest University, Chongqing 400716, P. R. China
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Yang T, Yang H, Zhen SJ, Huang CZ. Hydrogen-bond-mediated in situ fabrication of AgNPs/agar/PAN electrospun nanofibers as reproducible SERS substrates. ACS APPLIED MATERIALS & INTERFACES 2015; 7:1586-1594. [PMID: 25546719 DOI: 10.1021/am507010q] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Reproducibility in surface enhanced Raman scattering (SERS) measurements is a challenge. This work developed a facile way to make highly dispersed uniform silver nanoparticles (AgNPs) loaded in the agar/polyacrylonitrile (PAN) nanofibers by the coupling the electrospinning technology from metal complex-containing polymer solution and in situ photoreductive technique. Agar, as hydrophilic component, was introduced into the electrospinning solution considering that its abundant hydroxyl group sites could greatly improve the contents of silver ions in the polymers because of the rich silver ion chelated with the hydroxyl group, whereas hydrophilic agar was integrated with hydrophobic PAN by -OH···N≡C- hydrogen bonds as a bridge. Meanwhile, the in situ photoreductive reaction was made under different light irradiations such as desk lamp, 365 nm UV-lamp, and 254 nm UV-lamp. High yield of stable AgNPs with highly uniform and dispersion are available in the agar/PAN nanofibers after the in situ photoreductive reaction, supplying the possibility of reproducible SERS signals. To identify that concept of proof, a facile approach for the determination of malachite green (MG) in three environmental practical samples was demonstrated by using the composite nanofibrous material irradiated by 365 nm UV-lamp, giving the minimum detection concentration of MG as low as 0.1 μmol/L with a good linear response ranging from 0.1-100 μmol/L (R(2) = 0.9960).
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Affiliation(s)
- Tong Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University) Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
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15
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Zhong L, Yang T, Wang J, Huang CZ. A study of the catalytic ability of in situ prepared AgNPs–PMAA–PVP electrospun nanofibers. NEW J CHEM 2015. [DOI: 10.1039/c5nj01519g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalysis of nanomaterials is interesting and attractive. Herein, electrospinning was employed to afford poly(methyl acrylate) (PMAA)–poly(vinyl pyrrolidone) (PVP) electrospun nanofibers.
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Affiliation(s)
- Lin Zhong
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
| | - Tong Yang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
| | - Jian Wang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry
- Ministry of Education
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400715
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