Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles

Yuji Tsuchido; Aya Yamasawa; Takeshi Hashimoto; Takashi Hayashita

doi:10.2116/analsci.18P153

Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles

Yuji Tsuchido, Aya Yamasawa, Takeshi Hashimoto, Takashi Hayashita^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 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 Pb ²⁺ , 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 language	English
Pages (from-to)	1125-1130
Number of pages	6
Journal	Analytical Sciences
Volume	34
Issue number	10
DOIs	https://doi.org/10.2116/analsci.18P153
Publication status	Published - 2018
Externally published	Yes

Keywords

Dipicolylamine
Fluorescent probe
Metal ion
Molecular recognition
Phosphate
Silica nanoparticle

ASJC Scopus subject areas

Analytical Chemistry

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10.2116/analsci.18P153

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title = "Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles",

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 Pb 2+ , 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.",

keywords = "Dipicolylamine, Fluorescent probe, Metal ion, Molecular recognition, Phosphate, Silica nanoparticle",

author = "Yuji Tsuchido and Aya Yamasawa and Takeshi Hashimoto and Takashi Hayashita",

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year = "2018",

doi = "10.2116/analsci.18P153",

language = "English",

volume = "34",

pages = "1125--1130",

journal = "Analytical Sciences",

issn = "0910-6340",

publisher = "Japan Society for Analytical Chemistry",

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TY - JOUR

T1 - Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles

AU - Tsuchido, Yuji

AU - Yamasawa, Aya

AU - Hashimoto, Takeshi

AU - Hayashita, Takashi

N1 - Funding Information: This work was financially supported by Grants-in-Aid for Publisher Copyright: © The Japan Society for Analytical Chemistry.

PY - 2018

Y1 - 2018

N2 - 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 Pb 2+ , 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.

AB - 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 Pb 2+ , 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.

KW - Dipicolylamine

KW - Fluorescent probe

KW - Metal ion

KW - Molecular recognition

KW - Phosphate

KW - Silica nanoparticle

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JO - Analytical Sciences

JF - Analytical Sciences

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Metal and phosphate ion recognition using dipicolylaminemodified fluorescent silica nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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