Nanoscale Metal-Organic Frameworks as Fluorescence Sensors for Food Safety

Food safety has attracted attention worldwide, and how to detect various kinds of hazardous substances in an efficient way has always been a focus. Metal-Organic Frameworks (MOFs) are a class of hybrid porous materials formed by organic ligand and metal ions. Nanoscale MOFs (NMOFs) exhibit great potential in serving as fluorescence sensors for food safety due to their superior properties including high accuracy, great stability, fast response, etc. In this review, we focus on the recent development of NMOFs sensing for food safety. Several typical methods of NMOFs synthesis are presented. NMOFs-based fluorescence sensors for contaminants and adulterants, such as antibiotics, food additives, ions and mycotoxin etc. are summarized, and the sensing mechanisms are also presented. We explore these challenges in detail and provide suggestions about how they may be surmounted. This review could help the exploration of NMOFs sensors in food related work.

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Novel alkaline earth metal–organic frameworks with thiophene groups for selective detection of Fe3+

CrystEngComm ◽

10.1039/d0ce00990c ◽

2020 ◽

Vol 22 (36) ◽

pp. 5970-5979

Author(s):

Jun Yao ◽

Yan-E Liu ◽

Li-Bo Yang ◽

Ai-Na Dou ◽

Cheng-Fu Hou ◽

...

Keyword(s):

Alkaline Earth ◽

Metal Organic Frameworks ◽

Earth Metal ◽

Fast Response ◽

Alkaline Earth Metal ◽

Selective Detection ◽

Fluorescence Sensors ◽

Coordination Numbers ◽

Metal Organic

This work demonstrates that the alkaline earth ion radii play an important role in coordination numbers and topologies for constructing MOFs, and these MOFs can be used as fast-response fluorescence sensors for the detection of Fe3+.

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Two-dimensional Metal-Organic Frameworks applied to fast-response luminescent sensing for nitro compounds in solution

10.26226/morressier.5f6c5f439b74b699bf390b0e ◽

2020 ◽

Author(s):

Caroline Moraes da Silva ◽

Guilherme Arroyos ◽

Regina Célia Galvão Frem

Keyword(s):

Metal Organic Frameworks ◽

Fast Response ◽

Nitro Compounds ◽

Two Dimensional ◽

Metal Organic ◽

Luminescent Sensing

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Interplay of Metalloligand and Organic Ligand to Tune Micropores within Isostructural Mixed-Metal Organic Frameworks (M′MOFs) for Their Highly Selective Separation of Chiral and Achiral Small Molecules

Journal of the American Chemical Society ◽

10.1021/ja302380x ◽

2012 ◽

Vol 134 (20) ◽

pp. 8703-8710 ◽

Cited By ~ 256

Author(s):

Madhab C. Das ◽

Qunsheng Guo ◽

Yabing He ◽

Jaheon Kim ◽

Cong-Gui Zhao ◽

...

Keyword(s):

Small Molecules ◽

Metal Organic Frameworks ◽

Organic Ligand ◽

Selective Separation ◽

Mixed Metal ◽

Metal Organic

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Syntheses and structures of two novel fluorescent metal–organic frameworks generated from a tridentate donor–acceptor motif ligand

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229620006488 ◽

2020 ◽

Vol 76 (6) ◽

pp. 605-615

Author(s):

Yong-Jin Zhao ◽

Jian-Ping Ma ◽

Jianzhong Fan ◽

Yan Geng ◽

Yu-Bin Dong

Keyword(s):

Solid State ◽

Hydrogen Bonds ◽

Weak Interactions ◽

Metal Organic Frameworks ◽

3D Structure ◽

Organic Ligand ◽

Bidentate Ligand ◽

Donor Acceptor ◽

Metal Organic ◽

3D Networks

The tridentate organic ligand 4,4′,4′′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6,10-triyl)tribenzoic acid (H3L) has been synthesized (as the methanol 1.25-solvate, C48H39NO6·1.25CH3OH). As a donor–acceptor motif molecule, H3L possess strong intramolecular charge transfer (ICT) fluorescence. Through hydrogen bonds, H3L molecules construct a two-dimensional (2D) network, which pack together into three-dimensional (3D) networks with an ABC stacking pattern in the crystalline state. Based on H3L and M(NO3)2 salts (M = Cd and Zn) under solvothermal conditions, two metal–organic frameworks (MOFs), namely, catena-poly[[triaquacadmium(II)]-μ-10-(4-carboxyphenyl)-4,4′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6-diyl)dibenzoato], [Cd(C48H37NO6)(H2O)3] n , I, and poly[[μ3-4,4′,4′′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6,10-triyl)tribenzoato](μ3-hydroxido)zinc(II)], [Zn2(C48H36NO6)(OH)] n , II, were synthesized. Single-crystal analysis revealed that both MOFs adopt a 3D structure. In I, partly deprotonated HL 2− behaves as a bidentate ligand to link a CdII ion to form a one-dimensional chain. In the solid state of I, the existence of weak interactions, such as O—H...O hydrogen bonds and π–π interactions, plays an essential role in aligning 2D nets and 3D networks with AB packing patterns for I. The deprotonated ligand L 3− in II is utilized as a tridentate building block to bind ZnII ions to construct 3D networks, where unusual Zn4O14 clusters act as connection nodes. As a donor–acceptor molecule, H3L exhibits fluorescence with a photoluminescence quantum yield (PLQY) of 70% in the solid state. In comparison, the PL of both MOFs is red-shifted with even higher PLQYs of 79 and 85% for I and II, respectively.

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Size-controlled synthesis of metal–organic frameworks and their performance as fluorescence sensors

The Analyst ◽

10.1039/d0an01566k ◽

2020 ◽

Vol 145 (22) ◽

pp. 7349-7356 ◽

Cited By ~ 1

Author(s):

Kui Ren ◽

Xiao-Feng Guo ◽

Ying-Jie Tang ◽

Bo-Hui Huang ◽

Hong Wang

Keyword(s):

Folic Acid ◽

Metal Organic Frameworks ◽

Controlled Synthesis ◽

Fluorescence Sensors ◽

Fluorescent Sensing ◽

Metal Organic ◽

Size Controlled ◽

Sensing Performance

Fluorescent sensing experiments were carried out to compare the sensing performance for folic acid between bulk and nano Tb-MOFs.

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Metal–Organic Frameworks for Food Safety

Chemical Reviews ◽

10.1021/acs.chemrev.9b00257 ◽

2019 ◽

Vol 119 (18) ◽

pp. 10638-10690 ◽

Cited By ~ 80

Author(s):

Pei-Long Wang ◽

Lin-Hua Xie ◽

Elizabeth A. Joseph ◽

Jian-Rong Li ◽

Xiao-Ou Su ◽

...

Keyword(s):

Food Safety ◽

Metal Organic Frameworks ◽

Metal Organic

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The influence of the enantiomeric ratio of an organic ligand on the structure and chirality of metal–organic frameworks

Chemical Communications ◽

10.1039/c4cc06190j ◽

2014 ◽

Vol 50 (89) ◽

pp. 13829-13832 ◽

Cited By ~ 19

Author(s):

Iván Burneo ◽

Kyriakos C. Stylianou ◽

Inhar Imaz ◽

Daniel Maspoch

Keyword(s):

Metal Organic Frameworks ◽

Organic Ligand ◽

Enantiomeric Ratio ◽

Metal Organic

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Growth inhibition ofMicrocystic aeruginosaby metal–organic frameworks: effect of variety, metal ion and organic ligand

RSC Advances ◽

10.1039/c8ra05608k ◽

2018 ◽

Vol 8 (61) ◽

pp. 35314-35326 ◽

Cited By ~ 3

Author(s):

Gongduan Fan ◽

Liang Hong ◽

Xiaomei Zheng ◽

Jinjin Zhou ◽

Jiajun Zhan ◽

...

Keyword(s):

Growth Inhibition ◽

Metal Ions ◽

Metal Ion ◽

Metal Organic Frameworks ◽

Organic Ligand ◽

Organic Ligands ◽

Metal Organic

MOFs have been applied in the inactivation ofMicrocystic aeruginosa. The algal suppression by MOFs depends on the presence of different metal ions and organic ligands.

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