Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal-Organic Framework

Sunhwi Eom; Han Geul Lee; Dong Won Kang; Minjung Kang; Hyojin Kim; Youngseo Kim; Sungnam Park; Dohyun Moon; Chang Seop Hong

doi:10.1021/acsami.8b16926

Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal-Organic Framework

Sunhwi Eom, Han Geul Lee, Dong Won Kang, Minjung Kang, Hyojin Kim, Youngseo Kim, Sungnam Park, Dohyun Moon, Chang Seop Hong

Department of Chemistry

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

15 Citations (Scopus)

Abstract

Distinguishing specific molecules from similar chemical species with minor structural differences is challenging, and differentiation has typically been based on analyte-dependent host-guest interactions upon irradiation with a single wavelength. In this study, we prepared a Cd-based metal-organic framework exhibiting nearly constant emission intensity over a wide range of excitations. Because of its unique emission characteristics, this material facilitated the differentiation of specific molecules amidst structurally similar chemical species via competitive absorption. Such discriminative identification was uniquely achieved based on the use of different excitation wavelengths and is demonstrated to be applicable to the recognition of a target analyte in sensory applications.

Original language	English
Pages (from-to)	40372-40377
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	47
DOIs	https://doi.org/10.1021/acsami.8b16926
Publication status	Published - 2018 Nov 28

Keywords

competitive absorption
constant emission intensity
discriminative detection
metal-organic framework
photoluminescence

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsami.8b16926

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title = "Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal-Organic Framework",

abstract = "Distinguishing specific molecules from similar chemical species with minor structural differences is challenging, and differentiation has typically been based on analyte-dependent host-guest interactions upon irradiation with a single wavelength. In this study, we prepared a Cd-based metal-organic framework exhibiting nearly constant emission intensity over a wide range of excitations. Because of its unique emission characteristics, this material facilitated the differentiation of specific molecules amidst structurally similar chemical species via competitive absorption. Such discriminative identification was uniquely achieved based on the use of different excitation wavelengths and is demonstrated to be applicable to the recognition of a target analyte in sensory applications.",

keywords = "competitive absorption, constant emission intensity, discriminative detection, metal-organic framework, photoluminescence",

author = "Sunhwi Eom and Lee, {Han Geul} and Kang, {Dong Won} and Minjung Kang and Hyojin Kim and Youngseo Kim and Sungnam Park and Dohyun Moon and Hong, {Chang Seop}",

note = "Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT, & Future Planning (MSIP)) (NRF-2012-0008901), the Basic Science Research Program (NRF-2018R1A2A1A05079297), and PAL. Publisher Copyright: {\textcopyright} Copyright 2018 American Chemical Society.",

year = "2018",

month = nov,

day = "28",

doi = "10.1021/acsami.8b16926",

language = "English",

volume = "10",

pages = "40372--40377",

journal = "ACS Applied Materials and Interfaces",

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AU - Eom, Sunhwi

AU - Lee, Han Geul

AU - Kang, Dong Won

AU - Kang, Minjung

AU - Kim, Hyojin

AU - Kim, Youngseo

AU - Park, Sungnam

AU - Moon, Dohyun

AU - Hong, Chang Seop

N1 - Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT, & Future Planning (MSIP)) (NRF-2012-0008901), the Basic Science Research Program (NRF-2018R1A2A1A05079297), and PAL. Publisher Copyright: © Copyright 2018 American Chemical Society.

PY - 2018/11/28

Y1 - 2018/11/28

N2 - Distinguishing specific molecules from similar chemical species with minor structural differences is challenging, and differentiation has typically been based on analyte-dependent host-guest interactions upon irradiation with a single wavelength. In this study, we prepared a Cd-based metal-organic framework exhibiting nearly constant emission intensity over a wide range of excitations. Because of its unique emission characteristics, this material facilitated the differentiation of specific molecules amidst structurally similar chemical species via competitive absorption. Such discriminative identification was uniquely achieved based on the use of different excitation wavelengths and is demonstrated to be applicable to the recognition of a target analyte in sensory applications.

AB - Distinguishing specific molecules from similar chemical species with minor structural differences is challenging, and differentiation has typically been based on analyte-dependent host-guest interactions upon irradiation with a single wavelength. In this study, we prepared a Cd-based metal-organic framework exhibiting nearly constant emission intensity over a wide range of excitations. Because of its unique emission characteristics, this material facilitated the differentiation of specific molecules amidst structurally similar chemical species via competitive absorption. Such discriminative identification was uniquely achieved based on the use of different excitation wavelengths and is demonstrated to be applicable to the recognition of a target analyte in sensory applications.

KW - competitive absorption

KW - constant emission intensity

KW - discriminative detection

KW - metal-organic framework

KW - photoluminescence

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 47

ER -

Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal-Organic Framework

Abstract

Keywords

ASJC Scopus subject areas

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