典型文献
4-Mercaptopyridine Modified Fiber Optic Plasmonic Sensor for Sub-nM Mercury(Ⅱ)Detection
文献摘要：
In this paper,we propose and demonstrate a high-performance mercury ion sensor with sub-nM detection limit,high selectivity,and strong practicability based on the small molecule of the 4-mercaptopyridine(4-MPY)modified tilted fiber Bragg grating surface plasmon resonance(TFBG-SPR)sensing platform.The TFBG-SPR sensor has a rich mode field distribution and a narrow bandwidth,which can detect the microscopic physical and chemical reactions on the sensor surface with high sensitivity without being disturbed by the external temperature.For the environmental compatibility and highly efficient capture of the toxic mercury ion,4-MPY is modified on the sensor surface forming a stable(4-MPY)-Hg-(4-MPY)structure due to the specific combination between the nitrogen of the pyridine moiety and the Hg2+via multidentate N-bonding.Moreover,gold nanoparticles(AuNPs)are connected to the sensor surface through the(4-MPY)-Hg-(4-MPY)structure,which could play an important role for signal amplification.Under the optimized conditions,the limit of detection of the sensor for mercury ions detection in the solution is as low as 1.643×10-10M(0.1643nM),and the detection range is 1×10-9M-1×10-5M.At the same time,the mercury ion spiked detection with tap water shows that the sensor has the good selectivity and reliability in actual water samples.We develop a valuable sensing technology for on-time environmental Hg2+detection and in-vivo point of care testing in clinic applications.
文献关键词：
中图分类号：
作者姓名：
Yifan DUAN;Yang ZHANG;Fang WANG;Yuting SUN;Ming CHEN;Zhenguo JING;Qiao WANG;Mengdi LU;Wei PENG
作者机构：
School of Optoelectronics Engineering and Instrument Science,Dalian University of Technology,Dalian 116000,China;School of Physics,Dalian University of Technology,Dalian 116000,China;Hebei Institute for Drug and Medical Device Control,Shijiazhuang 050000,China
文献出处：
引用格式：
[1]Yifan DUAN;Yang ZHANG;Fang WANG;Yuting SUN;Ming CHEN;Zhenguo JING;Qiao WANG;Mengdi LU;Wei PENG-.4-Mercaptopyridine Modified Fiber Optic Plasmonic Sensor for Sub-nM Mercury(Ⅱ)Detection)[J].光子传感器（英文版）,2022(01):23-30
A类：
Mercaptopyridine,mercaptopyridine,MPY,Hg2+via,multidentate,1643nM,Hg2+detection
B类：
Modified,Fiber,Optic,Plasmonic,Sensor,Sub,Mercury,Detection,In,this,paper,propose,demonstrate,performance,mercury,sensor,sub,limit,selectivity,strong,practicability,small,molecule,modified,tilted,fiber,Bragg,grating,surface,plasmon,resonance,TFBG,SPR,sensing,platform,has,rich,mode,field,distribution,narrow,bandwidth,which,can,microscopic,physical,chemical,reactions,sensitivity,without,being,disturbed,by,external,temperature,For,environmental,compatibility,highly,efficient,capture,toxic,forming,stable,structure,due,specific,combination,between,nitrogen,moiety,bonding,Moreover,gold,nanoparticles,AuNPs,connected,through,could,play,important,role,signal,amplification,Under,optimized,conditions,solution,low,10M,range,9M,5M,At,same,spiked,tap,water,shows,that,good,reliability,actual,samples,We,develop,valuable,technology,vivo,point,care,testing,clinic,applications
AB值：
0.535072
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