Pyridinium-conjugated polynorbornenes for nanomolar ATP sensing using an indicator displacement assay and a PET strategy
- Authors
- Huang, Ling-Xi; He, Yue-Bo; Kim, Jaewon; Sharma, Amit; Cao, Qian-Yong; Kim, Jong Seung
- Issue Date
- 14-12월-2021
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- CHEMICAL COMMUNICATIONS, v.57, no.99, pp.13530 - 13533
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMICAL COMMUNICATIONS
- Volume
- 57
- Number
- 99
- Start Page
- 13530
- End Page
- 13533
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135426
- DOI
- 10.1039/d1cc05500c
- ISSN
- 1359-7345
- Abstract
- An indicator displacement assay, namely polymeric PNPY-n/UD consisting of a cationic polynorbornene backbone with pyridinium functional groups (PNPY-1,2,3) and an anionic uranine dye (UD) as an indicator, has been developed for highly sensitive "turn-on'' fluorescence sensing of ATP. While PNPY-1/UD itself is non-emissive, a bright green fluorescence signal was observed in the presence of ATP [K-a = 2.17 x 10(5) M-1, LOD = 5.7 nM]. The potential of a highly photostable system PNPY-1/UD was also validated in detecting ATP levels in live-cell imaging applications.
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