A fast self-cleaning SERS-active substrate based on an inorganic–organic hybrid nanobelt film

2015 ◽  
Vol 17 (32) ◽  
pp. 20840-20845 ◽  
Author(s):  
Rui Hao ◽  
Jie Lin ◽  
Hua Wang ◽  
Bo Li ◽  
Fengshi Li ◽  
...  
Keyword(s):  
Probe Molecules ◽  
Detection Process ◽  
Organic Hybrid ◽  
Sers Detection ◽  
Active Substrate ◽  
Self Cleaning ◽  
Sers Active Substrate

Ag@Ag(DMSO)xCl nanobelts can achieve fast self-cleaning by the photodegradation of probe molecules during the in situ SERS detection process.

Sensitive and label-free shell isolated Ag NPs@Si architecture based SERS active substrate: FDTD analysis and in-situ cellular DNA detection

2020 ◽  
Vol 515 ◽  
pp. 145955 ◽  
Author(s):  
Thankaraj Salammal Sheena ◽  
Vasanthan Devaraj ◽  
Jong-Min Lee ◽  
Perumalsamy Balaji ◽  
Paulraj Gnanasekar ◽  
...  
Keyword(s):  
Dna Detection ◽  
Label Free ◽  
Ag Nps ◽  
Active Substrate ◽  
Cellular Dna ◽  
Sers Active Substrate

scholarly journals Ag Nanostructures with Spikes on Adhesive Tape as a Flexible Sers-Active Substrate for In Situ Trace Detection of Pesticides on Fruit Skin

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1750 ◽  
Author(s):  
Jaya Sitjar ◽  
Jiunn-Der Liao ◽  
Han Lee ◽  
Li Peng Pan ◽  
Bernard Haochih Liu ◽  
...  
Keyword(s):  
Hot Spots ◽  
Flexible Substrate ◽  
Signal Enhancement ◽  
Raman Signal ◽  
Adhesive Tape ◽  
Trace Detection ◽  
Fruit Skin ◽  
Active Substrate ◽  
Sers Active Substrate

Nanostructures with spikes (NSPs) have been a subject of several surface-enhanced Raman scattering (SERS) applications owing to their significant Raman signal enhancement brought about by the combined effects of interspike coupling and the accumulated induction on the tips of spikes. Thus, NSPs offer great potential as a SERS-active substrate for relevant applications that require a high density of enhanced “hot spots”. In this study, Ag NSPs were synthesized in varying degrees of agglomeration and were thereafter deposited onto a transparent adhesive tape as a flexible substrate for SERS applications, specifically, in the detection of trace amounts of pesticides. These flexible substrates were referred to as Ag NSPs/tape and optimized with an enhancement factor (EF) of ca. 1.7 × 107. A strong resulting signal enhancement could be attributed to an optimal degree of agglomeration and, consequently, the distances among/between spikes. Long spikes on the synthesized core of Ag NSPs tend to be loosely spaced, which are suitable in detecting relatively large molecules that could access the spaces among the spikes where “hot spots” are generally formed. Since one side of the transparent tape is adhesive, the paste-and-peel off method was successful in obtaining phosmet and carbaryl residues from apple peels as reflected in the acquired SERS spectra. In situ trace detection of the pesticides at low concentrations down to 10−7 M could be demonstrated. In situ trace detection of mixed pesticides was possible as the characteristic peaks of both pesticides were observed in equimolar mixtures of the analytes at 10−2 to 10−4 M. This study is, thus, premised upon applying for in situ trace detection on e.g., fruit skin.

Ag-decorated TiO2 nanograss for 3D SERS-active substrate with visible light self-cleaning and reactivation

The Analyst ◽  
2013 ◽  
Vol 138 (16) ◽  
pp. 4519 ◽  
Author(s):  
S. C. Xu ◽  
Y. X. Zhang ◽  
Y. Y. Luo ◽  
S. Wang ◽  
H. L. Ding ◽  
...  
Keyword(s):  
Visible Light ◽  
Active Substrate ◽  
Self Cleaning ◽  
Sers Active Substrate

Ag-Deposited Porous Silicon as a SERS-Active Substrate for the Sensitive Detection of Catecholamine Neurotransmitters

2021 ◽  
Vol 17 (3) ◽  
pp. 292-298
Author(s):  
Van-The Vo ◽  
Youngju Gwon ◽  
Viet-Duc Phung ◽  
Young-Don Son ◽  
Jong-Hoon Kim ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Sensitive Detection ◽  
Active Substrate ◽  
Sers Active Substrate
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