Surface-enhanced Raman scattering effect of ordered gold nanoparticle array for rhodamine B with different morphologies

Zu, Xihong; Jian, Zhi-hui; Yi, Guobin; Huang, Hailiang; Zhong, Benbin; Luo, Hongsheng; Huang, Jianhui; Wang, Cui

doi:10.1007/s10118-015-1690-3

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…The Raman bands at 620 cm −1 is attributed to C-C-C stretch, and the peak at 1186 cm −1 corresponds to C-H in-plane bend, while the four peaks at 1280 cm −1 , 1358 cm −1 , 1506 cm −1 , and 1650 cm −1 are designated to stretching vibration of aromatic C-C bond. The peak positions of different substrates were nearly the same and were coincident with the characteristic peaks of RB [37], and no obvious band shift was observed. The Raman signal from AgNWs@AgNPs film substrate increased dramatically with the increase of particle size.…”

Section: Resultsmentioning

confidence: 99%

Flexible and Superhydrophobic Silver Nanoparticles Decorated Aligned Silver Nanowires Films as Surface-Enhanced Raman Scattering Substrates

Wang

2019

Nanoscale Res Lett

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Flexible and superhydrophobic silver nanoparticles decorated aligned silver nanowires (AgNWs@AgNPs) films were employed as efficient surface-enhanced Raman scattering (SERS) substrates to investigate the SERS properties of the Rhodamine B (RB). Aligned silver nanowires were fabricated via interface self-assembly technique and incorporated into shape memory polyurethane (SMPU) by hot-press method, which not only endow the composites with ordered array characteristics but also flexibility due to the presence of polymer. After an electrochemical deposition combined with a galvanic reaction, AgNWs@AgNPs was obtained. At last, the substrate was functioned with perfluorodecanethiol (PFDT), and the target flexible and superhydrophobic silver nanoparticles decorated aligned silver nanowires substrate was obtained. The substrate confines water droplet in a small area, and the analytes were enriched owing to the concentrating effect. The SERS assay using the as-synthesized flexible and superhydrophobic silver films as substrates can detect Rhodamine B as low as10 −10 M. The mechanism is thought to relate to the formation of robust superhydrophobic film, which is based on micro- and nanoscaled hierarchical structure provided by the AgNWs@AgNPs layer, strong adhesion between the SMPU film and the AgNWs@AgNPs layer, and the low surface energy molecule adsorption on the silver surface. The combined superhydrophobic and flexible properties endow the SERS substrate with improved detection limit for practical SERS applications.

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Section: Resultsmentioning

confidence: 99%

Flexible and Superhydrophobic Silver Nanoparticles Decorated Aligned Silver Nanowires Films as Surface-Enhanced Raman Scattering Substrates

Wang

2019

Nanoscale Res Lett

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“…Gold-based nanoparticles with biomedical imaging features have been extensively investigated as gene delivery systems. − Among various nanoparticles, gold nanorods (GNRs) possess interesting properties because of their unique shape effects. For example, GNRs yield a strong longitudinal surface plasmon resonance (LSPR) band that enables them to absorb near-infrared (near-IR) light effectively .…”

Section: Introductionmentioning

confidence: 99%

Gold-Nanorods-Based Gene Carriers with the Capability of Photoacoustic Imaging and Photothermal Therapy

Chen

Liang

Lin

et al. 2016

ACS Appl. Mater. Interfaces

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Multifunctional nanoparticles with high gene transfection activity, low cytotoxicity, photoacoustic imaging ability, and photothermal therapeutic properties were prepared by conjugating low-molecular-weight polyethylenimine onto the surfaces of gold nanorods through the formation of stable S-Au bonded conjugates. Results revealed that the gene transfection efficiency of the prepared polyethylenimine-modified gold nanorods (GNRs-PEI1.8k) was higher and their cytotoxicity was less than those of the commercial reagent PEI25k. GNRs-PEI1.8k could also be potentially used as a photoacoustic and photothermal reagent to evaluate the pharmacokinetics, biodistribution, and antitumor effects of gene/drug nanoparticles. Therefore, GNRs-PEI1.8k can be considered a promising candidate for the clinical diagnosis and treatment of tumors.

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Recycling Iron‐Containing Sludges from the Electroflocculation of Printing and Dyeing Wastewater into Anode Materials for Lithium‐Ion Batteries

Gang

Shen

Ma³

et al. 2020

ChemSusChem

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Iron‐containing sludges (DW/Fe) were prepared by the electroflocculation of industrial printing and dyeing wastewater (DW). To investigate the formation process and the properties of the DW/Fe sludges and their application in anode materials in Li‐ion batteries, the DW/Fe sludges were compared to three other sludges (MB/Fe, RB/Fe, Ta/Fe) prepared from model solutions that contained either methyl blue (MB), rhodamine B (RB), or tartrazine (Ta). The DW/Fe sludges were calcined at 500 °C under N2 to form iron oxide/carbon composite C‐DW/Fe. The composition and structure of the sludges and the C‐DW/Fe composite were analyzed by using FTIR spectroscopy, XRD, thermogravimetric analysis, SEM, TEM, and X‐ray photoelectron spectroscopy, and their performances as anodes of Li‐ion batteries were studied by adding different proportions of conductive agent (super P® conductive carbon black). Our results show that the sludges are a complex mixture of Fe3O4 and organic matter. The specific capacity and stability can be improved during the charge–discharge test by increasing the amount of carbon black. Importantly, this improvement is more pronounced on DW/Fe that does not require high‐temperature carbonization, which means that the sludges cannot only protect the environment and avoid the waste of resources but also can be used directly and widely in decentralized energy storage devices.

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Surface-enhanced Raman scattering effect of ordered gold nanoparticle array for rhodamine B with different morphologies

Cited by 9 publications

References 27 publications

Flexible and Superhydrophobic Silver Nanoparticles Decorated Aligned Silver Nanowires Films as Surface-Enhanced Raman Scattering Substrates

Flexible and Superhydrophobic Silver Nanoparticles Decorated Aligned Silver Nanowires Films as Surface-Enhanced Raman Scattering Substrates

Gold-Nanorods-Based Gene Carriers with the Capability of Photoacoustic Imaging and Photothermal Therapy

Recycling Iron‐Containing Sludges from the Electroflocculation of Printing and Dyeing Wastewater into Anode Materials for Lithium‐Ion Batteries

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