Monitoring of photoluminescence decay by alkali and alkaline earth metal cations using a photoluminescent bolaamphiphile self-assembly as an optical probe

Sunhyung Kim, Jinyoung Kwak, Sang Yup Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Photoluminescence (PL) decay induced by the displacement of an ionic fluorescence component, Tb3+, with alkali and alkaline earth metal cations was investigated using photoluminescent spherical self-assemblies as optical probes. The photoluminescent spherical self-assembly was prepared by the self-organization of a tyrosine-containing bolaamphiphile molecule with a photosensitizer and Tb3+ ion. The lanthanide ion, Tb3+, electrically bound to the carboxyl group of the bolaamphiphile molecule, was displaced by alkali and alkaline earth metal cations that had stronger electrophilicity. The PL of the self-assembly decayed remarkably due to the substitution of lanthanide ions with alkali and alkaline earth metal cations. The PL decay showed a positive correlation with cation concentration and was sensitive to the cation valency. Generally, the PL decay was enhanced by the electrophilicity of the cations. However, Ca2+ showed greater PL decay than Mg2+ because Ca2+ could create various complexes with the carboxyl groups of the bolaamphiphile molecule. Microscopic and spectroscopic investigations were conducted to study the photon energy transfer and displacement of Tb3+ by the cation exchange. This study demonstrated that the PL decay by the displacement of the ionic fluorescent compound was applied to the detection of various cations in aqueous media and is applicable to the development of future optical sensors.

Original languageEnglish
Pages (from-to)252-257
Number of pages6
JournalColloids and Surfaces B: Biointerfaces
Volume117
DOIs
Publication statusPublished - 2014 May 1

Fingerprint

Alkaline Earth Metals
Alkaline earth metals
alkaline earth metals
Alkalies
Self assembly
Cations
self assembly
alkalies
Photoluminescence
Positive ions
photoluminescence
cations
Monitoring
probes
decay
Lanthanoid Series Elements
carboxyl group
Ions
Rare earth elements
Molecules

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

@article{25ba0046746c4e6dbfe1288b5a758c44,
title = "Monitoring of photoluminescence decay by alkali and alkaline earth metal cations using a photoluminescent bolaamphiphile self-assembly as an optical probe",
abstract = "Photoluminescence (PL) decay induced by the displacement of an ionic fluorescence component, Tb3+, with alkali and alkaline earth metal cations was investigated using photoluminescent spherical self-assemblies as optical probes. The photoluminescent spherical self-assembly was prepared by the self-organization of a tyrosine-containing bolaamphiphile molecule with a photosensitizer and Tb3+ ion. The lanthanide ion, Tb3+, electrically bound to the carboxyl group of the bolaamphiphile molecule, was displaced by alkali and alkaline earth metal cations that had stronger electrophilicity. The PL of the self-assembly decayed remarkably due to the substitution of lanthanide ions with alkali and alkaline earth metal cations. The PL decay showed a positive correlation with cation concentration and was sensitive to the cation valency. Generally, the PL decay was enhanced by the electrophilicity of the cations. However, Ca2+ showed greater PL decay than Mg2+ because Ca2+ could create various complexes with the carboxyl groups of the bolaamphiphile molecule. Microscopic and spectroscopic investigations were conducted to study the photon energy transfer and displacement of Tb3+ by the cation exchange. This study demonstrated that the PL decay by the displacement of the ionic fluorescent compound was applied to the detection of various cations in aqueous media and is applicable to the development of future optical sensors.",
author = "Sunhyung Kim and Jinyoung Kwak and Lee, {Sang Yup}",
year = "2014",
month = "5",
day = "1",
doi = "10.1016/j.colsurfb.2014.02.046",
language = "English",
volume = "117",
pages = "252--257",
journal = "Colloids and Surfaces B: Biointerfaces",
issn = "0927-7765",
publisher = "Elsevier",

}

TY - JOUR

T1 - Monitoring of photoluminescence decay by alkali and alkaline earth metal cations using a photoluminescent bolaamphiphile self-assembly as an optical probe

AU - Kim, Sunhyung

AU - Kwak, Jinyoung

AU - Lee, Sang Yup

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Photoluminescence (PL) decay induced by the displacement of an ionic fluorescence component, Tb3+, with alkali and alkaline earth metal cations was investigated using photoluminescent spherical self-assemblies as optical probes. The photoluminescent spherical self-assembly was prepared by the self-organization of a tyrosine-containing bolaamphiphile molecule with a photosensitizer and Tb3+ ion. The lanthanide ion, Tb3+, electrically bound to the carboxyl group of the bolaamphiphile molecule, was displaced by alkali and alkaline earth metal cations that had stronger electrophilicity. The PL of the self-assembly decayed remarkably due to the substitution of lanthanide ions with alkali and alkaline earth metal cations. The PL decay showed a positive correlation with cation concentration and was sensitive to the cation valency. Generally, the PL decay was enhanced by the electrophilicity of the cations. However, Ca2+ showed greater PL decay than Mg2+ because Ca2+ could create various complexes with the carboxyl groups of the bolaamphiphile molecule. Microscopic and spectroscopic investigations were conducted to study the photon energy transfer and displacement of Tb3+ by the cation exchange. This study demonstrated that the PL decay by the displacement of the ionic fluorescent compound was applied to the detection of various cations in aqueous media and is applicable to the development of future optical sensors.

AB - Photoluminescence (PL) decay induced by the displacement of an ionic fluorescence component, Tb3+, with alkali and alkaline earth metal cations was investigated using photoluminescent spherical self-assemblies as optical probes. The photoluminescent spherical self-assembly was prepared by the self-organization of a tyrosine-containing bolaamphiphile molecule with a photosensitizer and Tb3+ ion. The lanthanide ion, Tb3+, electrically bound to the carboxyl group of the bolaamphiphile molecule, was displaced by alkali and alkaline earth metal cations that had stronger electrophilicity. The PL of the self-assembly decayed remarkably due to the substitution of lanthanide ions with alkali and alkaline earth metal cations. The PL decay showed a positive correlation with cation concentration and was sensitive to the cation valency. Generally, the PL decay was enhanced by the electrophilicity of the cations. However, Ca2+ showed greater PL decay than Mg2+ because Ca2+ could create various complexes with the carboxyl groups of the bolaamphiphile molecule. Microscopic and spectroscopic investigations were conducted to study the photon energy transfer and displacement of Tb3+ by the cation exchange. This study demonstrated that the PL decay by the displacement of the ionic fluorescent compound was applied to the detection of various cations in aqueous media and is applicable to the development of future optical sensors.

UR - http://www.scopus.com/inward/record.url?scp=84896540712&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896540712&partnerID=8YFLogxK

U2 - 10.1016/j.colsurfb.2014.02.046

DO - 10.1016/j.colsurfb.2014.02.046

M3 - Article

C2 - 24657611

AN - SCOPUS:84896540712

VL - 117

SP - 252

EP - 257

JO - Colloids and Surfaces B: Biointerfaces

JF - Colloids and Surfaces B: Biointerfaces

SN - 0927-7765

ER -