4.6 Article

Photoinduced electron transfer of poly(o-phenylenediamine)-Rhodamine B copolymer dots: application in ultrasensitive detection of nitrite in vivo

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 14, Pages 7568-7574

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta00675a

Keywords

-

Funding

  1. China West Normal University [12B017]
  2. Major Project of Education Department in Sichan [14ZA0125]
  3. National Natural Science Foundation of China [11104303]
  4. Chinese Academy of Sciences [KGZD-EW-303, XDA02040000]

Ask authors/readers for more resources

We demonstrate a new semiconducting polymer dot: the poly(o-phenylenediamine)-Rhodamine B copolymer dot (Pp-RhB dot), which emits in the red wavelength range. The Pp-RhB dots can be used as an ultrasensitive fluorescence probe for NO2- in vivo and show high selectivity and ultrasensitivity (detection limit: 2.0 x 10(-11) M) for NO2-. The fluorescence of Pp-RhB dots is decreased (phi = 0.014) as a result of fast photoinduced electron transfer (PET) between the modulator (poly(o-phenylenediamine)) and the transducer (RhB), but the N-NO2 bonding mode prevents PET, causing the fluorescence emission to be enhanced (phi = 0.92). This probe effectively avoids the influence of auto-fluorescence in biological systems and gave positive results when tested in both aqueous solution and living

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available