Micro-coffee-ring-patterned fiber SERS probes and their in situ detection application in complex liquid environments
Sensors and Actuators B: Chemical(2019)
摘要
•Micro-coffee-ring patterns are fabricated on fiber facet using a self-developed laser-induced dynamic dip-coating method.•The formation mechanisms of micro-coffee-rings on fiber facet are analyzed.•These fiber SERS probes simultaneously show high detection sensitivity and good reproducibility in SERS detections.•In situ trace SERS detections in complex liquids, e.g. pesticide residues in juice and antibiotics in milk, are achieved.
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关键词
Surface-enhanced Raman scattering,Fiber probes,Coffee rings,Pesticide residues,Antibiotics,Complex liquid environments
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