scholarly journals Large-scale preparation of flexible and reusable surface-enhanced Raman scattering platform based on electrospinning AgNPs/PCL nanofiber membrane

RSC Advances ◽  
2017 ◽  
Vol 7 (75) ◽  
pp. 47373-47379 ◽  
Author(s):  
Jihua Shi ◽  
Tingting You ◽  
Yukun Gao ◽  
Xiu Liang ◽  
Chenling Li ◽  
...  

A flexible and reusable SERS substrates were prepared by electrospinning Ag nanoparticles in reversed micelle into poly(ε-caprolactone) nanofibers.

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 520 ◽  
Author(s):  
Jia Zhu ◽  
Guanzhou Lin ◽  
Meizhang Wu ◽  
Zhuojie Chen ◽  
Peimin Lu ◽  
...  

Technology transfer from laboratory into practical application needs to meet the demands of economic viability and operational simplicity. This paper reports a simple and convenient strategy to fabricate large-scale and ultrasensitive surface-enhanced Raman scattering (SERS) substrates. In this strategy, no toxic chemicals or sophisticated instruments are required to fabricate the SERS substrates. On one hand, Ag nanoparticles (NPs) with relatively uniform size were synthesized using the modified Tollens method, which employs an ultra-low concentration of Ag+ and excessive amounts of glucose as a reducing agent. On the other hand, when a drop of the colloidal Ag NPs dries on a horizontal solid surface, the droplet becomes ropy, turns into a layered structure under gravity, and hardens. During evaporation, capillary flow was burdened by viscidity resistance from the ropy glucose solution. Thus, the coffee-ring effect is eliminated, leading to a uniform deposition of Ag NPs. With this method, flat Ag NPs-based SERS active films were formed in array-well plates defined by hole-shaped polydimethylsiloxane (PDMS) structures bonded on glass substrates, which were made for convenient detection. The strong SERS activity of these substrates allowed us to reach detection limits down to 10−14 M of Rhodamine 6 G and 10−10 M of thiram (pesticide).


RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4404-4410 ◽  
Author(s):  
Andrea Lamberti ◽  
Alessandro Virga ◽  
Angelo Angelini ◽  
Alessandro Ricci ◽  
Emiliano Descrovi ◽  
...  

Stretchable plasmonic nanostructures constituted by Ag nanoparticles on flexible elastomeric matrices are synthesized and used as surface-enhanced Raman scattering (SERS) substrates.


Nanoscale ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 9405-9410 ◽  
Author(s):  
Aron Hakonen ◽  
Mikael Svedendahl ◽  
Robin Ogier ◽  
Zhong-Jian Yang ◽  
Kristof Lodewijks ◽  
...  

Nanoplasmonic substrates with optimized field-enhancement properties is a key component in the continued development of surface-enhanced Raman scattering (SERS) molecular analysis but are challenging to produce inexpensively in large scale.


2015 ◽  
Vol 7 (24) ◽  
pp. 10359-10363 ◽  
Author(s):  
Qiang Wang ◽  
Xingchen Zhao ◽  
Zhuanni Yu ◽  
Ruiqin Tan ◽  
Jing Lan

Surface enhanced Raman spectroscopy (SERS) substrates based on silver nanowires can be easily and precisely prepared one time. These SERS substrates presented good uniformity and performance for the detection of crystal violet and 1,2-di(4-pyridyl)ethylene.


RSC Advances ◽  
2014 ◽  
Vol 4 (38) ◽  
pp. 19654-19657 ◽  
Author(s):  
Haibin Tang ◽  
Guowen Meng ◽  
Qing Huang ◽  
Chuhong Zhu ◽  
Zhulin Huang ◽  
...  

Large-scale ordered urchin-like Au-nanoparticles decorated Ag-nanohemisphere nanodot arrays show highly active surface-enhanced Raman scattering effect for rapid recognition of PCB-3.


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