Rational design, synthesis, and applications of carbon dots@metal–organic frameworks (CD@MOF) based sensors

As promising sensory materials, metal–organic frameworks have been extensively studied; however, the development of fluorescent MOFs relies heavily on the complex organic ligands and lanthanide metal ions, which remains a challenge. To overcome this barrier, carbon dots@metal–organic frameworks (CD@...

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Bibliographic Details
Published in:TrAC, Trends in analytical chemistry (Regular ed.) Trends in analytical chemistry (Regular ed.), 2021-02, Vol.135, p.116163, Article 116163
Main Authors: Li, Bingzhi, Suo, Tiying, Xie, Siying, Xia, Anqi, Ma, Yu-jie, Huang, He, Zhang, Xing, Hu, Qin
Format: Article
Language:English
Subjects:
Aptamers
Biomarkers
Carbon dots
Electrochemistry
Fluorescence
Immobolization
Metal–organic frameworks
Nanocomposite
Sensors
Tunable fluorescence
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Summary:As promising sensory materials, metal–organic frameworks have been extensively studied; however, the development of fluorescent MOFs relies heavily on the complex organic ligands and lanthanide metal ions, which remains a challenge. To overcome this barrier, carbon dots@metal–organic frameworks (CD@MOF) have been proposed and developed. CD@MOF composites are newly emerging as fluorescent sensors due to their ease of synthesis, high selectivity and sensitivity to analytes. CD@MOF sensors combine the advantages of both CDs and MOFs, including excellent optical properties of CDs (such as tunable emission lights and photochemical stability) and high surface areas, tunable porosity, and designable functionalities of MOFs, resulting in enhanced sensing performance. This review focuses on recent progresses in the rational design and synthesis of CD@MOF sensors and their applications in sensing of metal ions, nitroaromatic compounds, water and humidity, temperature, biomarkers, and drugs. We also briefly discuss the present challenges and future research directions for CD@MOF sensors. •CD@MOF sensors take advantages of both CDs (optical properties) and MOFs (accumulation ability).•The introduction of CDs greatly extends the availability of MOFs as host matrix.•CD@MOF sensors have tunable optical properties and enhanced sensing performance.•Recent progress of the strategies for design and synthesis of CD@MOF sensors is summarized.•The sensing applications of CD@MOF sensors are classified and discussed.
ISSN:0165-9936
1879-3142
DOI:10.1016/j.trac.2020.116163