Pollutant capturing SERS substrate: porous boron nitride microfibers with uniform silver nanoparticle decoration

Nanoscale ◽  
2015 ◽  
Vol 7 (45) ◽  
pp. 18992-18997 ◽  
Author(s):  
Pengcheng Dai ◽  
Yanming Xue ◽  
Xuebin Wang ◽  
Qunhong Weng ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Boron Nitride ◽  
Silver Nanoparticle ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

We designed a novel pollutant capturing surface enhanced Raman spectroscopy (SERS) substrate based on boron nitride microfibers uniformly decorated with silver nanoparticles.

scholarly journals Detection of a Sudan dye at low concentrations by surface-enhanced Raman spectroscopy using silver nanoparticles

2019 ◽  
Vol 29 (4) ◽  
pp. 521
Author(s):  
Tran Cao Dao ◽  
Truc Quynh Ngan Luong ◽  
Tuan Anh Cao ◽  
Ngoc Minh Kieu
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Good Method ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Sudan Dyes ◽  
Sudan I ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection

Sudan dyes are red colorants banned from use for food due to their toxic properties. However, because of the cheapness, they are sometimes adulterated into food illegally. Currently surface-enhanced Raman spectroscopy (SERS) is emerging as a good method to detect residues (including trace amounts) of Sudan dyes in food. In this report we present the SERS detection of Sudan I (a type of Sudan dyes) to concentrations as low as 1 ppb, using a very simple SERS substrate, which is made from silver nanoparticles chemically deposited on silicon surface.

scholarly journals Optimizing electroporation assisted silver nanoparticle delivery into living C666 cells for surface-enhanced Raman spectroscopy

2011 ◽  
Vol 25 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Yun Yu ◽  
Juqiang Lin ◽  
Yanan Wu ◽  
Shangyuan Feng ◽  
Yongzeng Li ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Silver Nanoparticle ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Spectrum ◽  
Electric Pulses ◽  
Nanoparticle Delivery ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Delivery Efficiency

Electroporation assisted metallic nanoparticle delivery has been shown by our previous work to significantly reduce the time of sample preparation for surface-enhanced Raman spectroscopy (SERS) measurements of biological cells. In this paper, we report our experimental work to optimize the electroporation parameters, including adjustment of the pulse pattern, operation temperature, and electroporation buffer, for fastest delivery of silver nanoparticles into living C666 cells (a human nasopharyngeal carcinoma cell line). The delivery efficiency was evaluated by the integrated intensity of whole cell SERS spectrum. Our work concluded that the silver nanoparticle delivery rate is best under the electroporation condition of using 4 consecutive 350 V (875 V/cm) rectangular electric pulses of 1, 10, 10 and 1 ms durations, respectively. Low temperature (0–4°C) is necessary for keeping cell viability during the electroporation process and it also improves the delivery efficiency of silver nanoparticles. The serum in the buffer has no obvious effect on the delivery efficiency.

Silver oxide model surface improves computational simulation of surface-enhanced Raman spectroscopy on silver nanoparticles

2021 ◽  
Author(s):  
Scott G. Harroun ◽  
Yaoting Zhang ◽  
Tzu-Heng Chen ◽  
Huan-Tsung Chang ◽  
Alexis Vallée-Bélisle
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Silver Oxide ◽  
Accurate Result ◽  
Computational Simulation ◽  
Surface Enhanced Raman Spectroscopy ◽  
Model Surface ◽  
Surface Enhanced ◽  
Model Surfaces ◽  
Surface Enhanced Raman

For simulation of SERS on silver nanoparticles, Ag2O can provide a more accurate result than standard model surfaces such as Ag+, Ag, Ag4+ and Ag4.

scholarly journals Reusable Surface-Enhanced Raman Spectroscopy Substrates Made of Silicon Nanowire Array Coated with Silver Nanoparticles Fabricated by Metal-Assisted Chemical Etching and Photonic Reduction

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1531 ◽  
Author(s):  
Shi Bai ◽  
Yongjun Du ◽  
Chunyan Wang ◽  
Jian Wu ◽  
Koji Sugioka
Keyword(s):  
Silver Nanoparticles ◽  
Chemical Etching ◽  
Silicon Nanowire ◽  
Nanowire Array ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Silicon Nanowire Array ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Metal Assisted Chemical Etching

Surface-enhanced Raman spectroscopy (SERS) has advanced over the last four decades and has become an attractive tool for highly sensitive analysis in fields such as medicine and environmental monitoring. Recently, there has been an urgent demand for reusable and long-lived SERS substrates as a means of reducing the costs associated with this technique To this end, we fabricated a SERS substrate comprising a silicon nanowire array coated with silver nanoparticles, using metal-assisted chemical etching followed by photonic reduction. The morphology and growth mechanism of the SERS substrate were carefully examined and the performance of the fabricated SERS substrate was tested using rhodamine 6G and dopamine hydrochloride. The data show that this new substrate provides an enhancement factor of nearly 1 × 108. This work demonstrates that a silicon nanowire array coated with silver nanoparticles is sensitive and sufficiently robust to allow repeated reuse. These results suggest that this newly developed technique could allow SERS to be used in many commercial applications.

scholarly journals Boron Nitride Nanosheets Improve Sensitivity and Reusability of Surface-Enhanced Raman Spectroscopy

2016 ◽  
Vol 55 (29) ◽  
pp. 8405-8409 ◽  
Author(s):  
Qiran Cai ◽  
Srikanth Mateti ◽  
Wenrong Yang ◽  
Rob Jones ◽  
Kenji Watanabe ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Boron Nitride ◽  
Surface Enhanced Raman Spectroscopy ◽  
Boron Nitride Nanosheets ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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