Highly sensitive interfacial fluorescence sensing of deoxyribonucleic acid based on self-assembled multilayers

2010 ◽  
Vol 518 (15) ◽  
pp. 4437-4441
Author(s):  
Xiangying Sun ◽  
Bin Liu ◽  
Ping Hu ◽  
Wenying Hu
Keyword(s):  
Deoxyribonucleic Acid ◽  
Fluorescence Sensing ◽  
Highly Sensitive ◽  
Self Assembled

scholarly journals Highly sensitive and selective detection of PCB 77 using an aptamer-catalytic hairpin assembly in an aquatic environment

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5506-5511
Author(s):  
Lin Yuan ◽  
Qiang Fu ◽  
Maojuan Zhou ◽  
Yunqian Ma ◽  
Lihua Zang ◽  
...  
Keyword(s):  
Aquatic Environment ◽  
Selective Detection ◽  
Fluorescence Sensing ◽  
Highly Sensitive ◽  
Catalytic Hairpin Assembly

The fluorescence sensing strategy was used to detect PCB77 based on the aptamer-complex and catalytic hairpin assembly.

Novel optical oxygen sensing by phosphorescence quenching of palladium porphyrin self-assembled film on alumina plate

2000 ◽  
Vol 04 (02) ◽  
pp. 179-184 ◽  
Author(s):  
YUTAKA AMAO ◽  
KEISUKE ASAI ◽  
ICHIRO OKURA
Keyword(s):  
Oxygen Pressure ◽  
Oxygen Sensor ◽  
Response Times ◽  
Oxygen Sensing ◽  
Fast Response ◽  
Phosphorescence Quenching ◽  
Highly Sensitive ◽  
Optical Oxygen Sensor ◽  
Self Assembled ◽  
Quenching By Oxygen

An optical oxygen sensor based on the phosphorescence quenching of palladium tetrakis(4-carboxyphenyl)porphyrin (PdTCPP) self-assembled film (SAM) on alumina plate was developed. The phosphorescence intensity of PdTCPP film decreased with increasing oxygen pressure, indicating that the film can be used as an optical oxygen-sensing device based on phosphorescence quenching by oxygen. The ratio I0/I100 as a sensitivity measure of the sensing film is estimated to be 17.7, showing that the film is a highly sensitive device for oxygen pressure. The film obeyed Stern–Volmer plots with a multisite model and possessed good operational stability and a fast response. Response times are 36 s for deoxygenated to oxygenated conditions and 148 s for the reverse conditions.

Redox-induced target-dependent ratiometric fluorescence sensing strategy and logic gate operation for detection of α-glucosidase activity and its inhibitor

2021 ◽  
Author(s):  
Xucan Yuan ◽  
Yi Sun ◽  
Pengfei Zhao ◽  
Longshan Zhao ◽  
Zhili Xiong
Keyword(s):  
Redox Reaction ◽  
Logic Gate ◽  
Sensitive Detection ◽  
Ratiometric Fluorescence ◽  
Fluorescence Sensing ◽  
Gate Operation ◽  
Glucosidase Activity ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Ratiometric Fluorescence Sensing

A target-dependent ratiometric fluorescence sensing strategy was designed and fabricated based on redox reaction for highly sensitive detection of α-glucosidase (α-Glu) activity and its inhibitor. In this study, silicon quantum...

A metal-organic framework featuring highly sensitive fluorescence sensing for Al3+ ion

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yang Qiao ◽  
Zeqi Li ◽  
Mei-Hui Yu ◽  
Ze Chang ◽  
Xian-He Bu
Keyword(s):  
Metal Ions ◽  
Human Health ◽  
Metal Organic Framework ◽  
High Sensitivity ◽  
Fluorescence Sensing ◽  
Sensing Material ◽  
Highly Sensitive ◽  
Sensitivity And Selectivity ◽  
Metal Organic ◽  
Organic Framework

High sensitivity and selectivity for detection of metal ions are very important to protect human health. Fluorescent metal-organic framework (MOF) as a new sensing material has attracted more and more...

A highly sensitive humidity sensor based on an aggregation-induced emission luminogen-appended hygroscopic polymer microresonator

2021 ◽  
Author(s):  
Airong Qiagedeer ◽  
Hiroshi Yamagishi ◽  
Minami Sakamoto ◽  
Hanako Hasebe ◽  
Fumitaka Ishiwari ◽  
...  
Keyword(s):  
Humidity Sensor ◽  
High Sensitivity ◽  
Aggregation Induced Emission ◽  
Highly Sensitive ◽  
Self Assembled

A self-assembled microsphere resonator, comprising a hygroscopic polymer with aggregation-induced emission luminogen pendants, can sense humidity with high sensitivity and repeatability.

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