Polydopamine-coated magnetic nanoparticles for enrichment and direct detection of small molecule pollutants coupled with MALDI-TOF-MS.

@article{Ma2013PolydopaminecoatedMN,
  title={Polydopamine-coated magnetic nanoparticles for enrichment and direct detection of small molecule pollutants coupled with MALDI-TOF-MS.},
  author={Yu-rong Ma and Xiao-le Zhang and Tao Zeng and Dong Cao and Zhen Zhou and Wen-hui Li and Hongyun Niu and Ya-qi a Cai},
  journal={ACS applied materials & interfaces},
  year={2013},
  volume={5 3},
  pages={1024-30}
}
Polydopamine-coated Fe(3)O(4) nanoparticles (Fe(3)O(4)@PDA NPs) were synthesized and applied as matrix for the detection of pollutants by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The synthesis of Fe(3)O(4)@PDA NPs was accomplished in 30 min by in situ polymerization of dopamine without any toxic reagent. Using Fe(3)O(4)@PDA NPs as matrix of MALDI-TOF, eleven small molecule pollutants (molecular weight from 251.6 to 499.3), including Benzo(a… CONTINUE READING