2D bimetallic Ni/Fe MOF nanosheet composites as a peroxidase-like nanozyme for colorimetric assay of multiple targets

Abstract

In this contribution, the 2D Ni/Fe MOF nanosheets were synthesized by a simple two-step ultrasound strategy at room temperature, i.e. the 2D Ni-MOF with lamellar structure was first synthesized by...

Recent advances in Fe-based metal–organic framework derivatives for battery applications

“…48 For example, Li et al synthesized 2D Ni/Fe MOF nanosheets at room temperature via a simple two-step ultrasonic strategy. 49 2D Ni/Fe MOF nanosheets with weak oxidase-like and strong peroxidase-like properties were formed by introducing Fe 3+ ions as metal nodes and terephthalic acid as an organic ligand. Compared with the Ni-MOF and Fe-MOF, the peroxide mimicking ability of 2D Ni/Fe-MOF nanosheets was increased by 14 and 3 fold, respectively.…”

2D MOF nanosheets as an artificial light-harvesting system with enhanced photoelectric switching performance

“…[1][2][3][4][5][6][7][8][9][10][11] Apart from traditional inorganic materials, hybrid metal-organic framework (MOF) nanosheets have emerged as a new type of 2D nanomaterial. 12,13 Their excellent advantages of ordered crystalline structures, tailorable molecular structures, intrinsic long-range orders, and large surface areas give MOFs great potential in gas storage, drug delivery, catalysis, optoelectronic devices, and so on. [14][15][16][17][18][19][20][21][22][23][24][25] Despite promising results achieved on the synthesis of bulk MOFs with fascinating structures and functions, it still remains a significant challenge to precisely control the size, shape, and morphology of such materials in a technically simple way.…”

“…Meanwhile, the large specific surface area and unsaturated metal sites can enhance their performance in separation, catalysis, and sensing. 12,13,[27][28][29][30][31][32] On the other hand, artificial light-harvesting systems/ materials have become an emerging topic to fulfill the specific requirements for conversion of solar energy into chemical energy for replacing nonrenewable resources, such as coal and petroleum. 33 Efficient fluorescence resonance energy transfer involves a non-energy radiation process between energy donors and energy acceptors, which is the key factor to realize energy storage and conversion in artificial light-harvesting systems.…”

“…Meanwhile, the large specific surface area and unsaturated metal sites can enhance their performance in separation, catalysis, and sensing. 12,13,27–32…”

Enhanced peroxidase-like activity of bimetal (Fe/Co) MIL-101 for determination of tetracycline and hydrogen peroxide

“…1,2,23–26 In previous studies, nano-sized MOF materials were often used as peroxidase mimics to construct colorimetric methods for detecting H 2 O 2 as well as related biomolecules including glucose 27,28 and cholesterol. 29,30 Commonly, a colorimetric sensing platform constructed of single-metal MOFs was used to detect reducing substances including ascorbic acid 31,32 and glutathione, 33,34 which restricted the oxidation of the chromogenic substrate (TMB) and resulted in the blue color fading. Nevertheless, there are few reports on the further increase of oxTMB absorbance after adding of MOFs as well as tetracycline.…”