Ratiometric fluorescent detection of Cu2+ with carbon dots chelated Eu-based metal-organic frameworks

Hao, Jie; Liu, Fenfen; Liu, Nan; Zeng, Mulang; Song, Yonghai; Wang, Li

doi:10.1016/j.snb.2017.02.029

Cited by 130 publications

(46 citation statements)

References 37 publications

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“…88 Similarly, fluorescent CNDs have been encapsulated in NMOF with potential to serve as a multifunctional platform for biological applications. [89][90][91][92] Fluorescent CNDs have also been decorated on the surface of silver nanoparticles for bio-detection. 93 Compared to the GQDs and CNDs, PDs are very novel and not yet explored very well.…”

Section: Optical Encodingmentioning

confidence: 99%

Versatile design and synthesis of nano-barcodes

et al. 2017

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Encoded nano-structures/particles have been used for barcoding and are in great demand for the simultaneous analysis of multiple targets. Due to their nanoscale dimension(s), nano-barcodes have been implemented favourably for bioimaging, in addition to their security and multiplex bioassay application. In designing nano-barcodes for a specific application, encoding techniques, synthesis strategies, and decoding techniques need to be considered. The encoding techniques to generate unique multiple codes for nano-barcodes are based on certain encoding elements including optical (fluorescent and non-fluorescent), graphical, magnetic, and phase change properties of nanoparticles or their different shapes and sizes. These encoding elements can generally be embedded inside, decorated on the surface of nanostructures or self-assembled to prepare the nano-barcodes. The decoding techniques for each encoding technique are different and need to be suitable for the desired applications. This review will provide a thorough discussion on designing nano-barcodes, focusing on the encoding techniques, synthesis methods, and decoding for applications including bio-detection, imaging, and anti-counterfeiting. Additionally, associated challenges in the field and potential solutions will also be discussed. We believe that a comprehensive understanding on this topic could significantly contribute towards the advancement of nano-barcodes for a broad spectrum of applications.

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Section: Optical Encodingmentioning

confidence: 99%

Versatile design and synthesis of nano-barcodes

et al. 2017

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“…It is worth noting that the pH values of the endosomal and lysosomal compartments may be as low as 5.5-6.0 and 4.5-5.0, respectively. 22,23 Moreover, the GSH concentration in normal cells is about 5 mM, and the concentration in cancer cells is about four times Scheme 2 Schematic illustration of the reaction mechanism of Zr-MOF/AMC in the sensing of GSH. that of normal cells.…”

Section: Drug-loading and Release Behaviormentioning

confidence: 99%

Acetaldehyde-modified-cystine functionalized Zr-MOFs for pH/GSH dual-responsive drug delivery and selective visualization of GSH in living cells

Lin

Zhang

et al. 2020

RSC Adv.

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“…Primarily, metal nanomaterials inset into MOFs can expect improved thermodynamic stability with minimized agglomeration [145][146][147]. In 2017, Hao et al [148] developed a kind of MOF hybrid material, encapsulating the fluorescent carbon dots (CDs) into Eu-2,6-pyridinedicarboxylic acid (DPA) metal organic frameworks (Eu-DPA MOFs) for the sensitive ratiometric fluorescent detection of Cu 2+ (Figure 3), Eu-DPA MOFs displayed the uniform nanoscaled ball-flower-like structures so that they were very stable in aqueous solution. The CDs@Eu-DPA MOFs had two kinds of fluorescence emission peaks which derived from CDs and Eu-DPA MOFs.…”

Section: Heavy Metal Detectionmentioning

confidence: 99%

mentioning

confidence: 99%

Recent Progress on Luminescent Metal-Organic Framework-Involved Hybrid Materials for Rapid Determination of Contaminants in Environment and Food

et al. 2020

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The high speed of contaminants growth needs the burgeoning of new analytical techniques to keep up with the continuous demand for monitoring and legislation on food safety and environmental pollution control. Metal-organic frameworks (MOFs) are a kind of advanced crystal porous materials with controllable apertures, which are self-assembled by organic ligands and inorganic metal nodes. They have the merits of large specific surface areas, high porosity and the diversity of structures and functions. Latterly, the utilization of metal-organic frameworks has attracted much attention in environmental protection and the food industry. MOFs have exhibited great value as sensing materials for many targets. Among many sensing methods, fluorometric sensing is one of the widely studied methods in the detection of harmful substances in food and environmental samples. Fluorometric detection based on MOFs and its functional materials is currently one of the most key research subjects in the food and environmental fields. It has gradually become a hot research direction to construct the highly sensitive rapid sensors to detect harmful substances in the food matrix based on metal-organic frameworks. In this paper, we introduced the synthesis and detection application characteristics (absorption, fluorescence, etc.) of metal-organic frameworks. We summarized their applications in the MOFs-based fluorometric detection of harmful substances in food and water over the past few years. The harmful substances mainly include heavy metals, organic pollutants and other small molecules, etc. On this basis, the future development and possible application of the MOFs have prospected in this review paper.

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Ratiometric fluorescent detection of Cu2+ with carbon dots chelated Eu-based metal-organic frameworks

Cited by 130 publications

References 37 publications

Versatile design and synthesis of nano-barcodes

Versatile design and synthesis of nano-barcodes

Acetaldehyde-modified-cystine functionalized Zr-MOFs for pH/GSH dual-responsive drug delivery and selective visualization of GSH in living cells

Recent Progress on Luminescent Metal-Organic Framework-Involved Hybrid Materials for Rapid Determination of Contaminants in Environment and Food

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