Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles

Yuji Tsuchido, Aya Yamasawa, Takeshi Hashimoto, Takashi Hayashita

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Dipicolylamine-modified fluorescent silica nanoparticles were prepared by introducing dipicolylamine to the surface of silica nanoparticles possessing terminal amines. We examined the selectivities of dipicolylamine-hydroxycoumarin carbonate (dpa-HCC) and dpa-HCC/fluorescent silica nanoparticles (FSiNP) for metal ions and phosphate anions. The dipicolylamine-modified silica nanoparticles responded to PPi, Tri and Pb2+, indicating novel selectivity derived from the assembly effect of dpa-HCC on the silica nanoparticle surface. Surface-modified fluorescent silica nanoparticles are expected to be used as a sensor for environmental and biological applications.

Original languageEnglish
Pages (from-to)1125-1130
Number of pages6
JournalAnalytical Sciences
Volume34
Issue number10
DOIs
Publication statusPublished - 2018 Jan 1
Externally publishedYes

Fingerprint

Silicon Dioxide
Metals
Phosphates
Ions
Nanoparticles
Carbonates
Amines
Anions
Metal ions
2,2'-dipicolylamine
Sensors

Keywords

  • Dipicolylamine
  • Fluorescent probe
  • Metal ion
  • Molecular recognition
  • Phosphate
  • Silica nanoparticle

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles. / Tsuchido, Yuji; Yamasawa, Aya; Hashimoto, Takeshi; Hayashita, Takashi.

In: Analytical Sciences, Vol. 34, No. 10, 01.01.2018, p. 1125-1130.

Research output: Contribution to journalArticle

Tsuchido, Yuji ; Yamasawa, Aya ; Hashimoto, Takeshi ; Hayashita, Takashi. / Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles. In: Analytical Sciences. 2018 ; Vol. 34, No. 10. pp. 1125-1130.
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