Interface electronic engineering of molybdenum sulfide/MXene hybrids for highly efficient biomimetic sensors

Wu, Pengfei; You, Tianyan; Ren, Qing-Yuan; Xi, Hongyan; Liu, Qingqing; Qin, Fengjuan; Gu, Hongfei; Wang, Yu; Yan, Wensheng; Gao, Yukun; Yin, Ping

doi:10.1007/s12274-022-5038-3

Cited by 7 publications

(6 citation statements)

References 67 publications

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“…127 The MoS 2 /Ti 3 C 2 T x modified electrode shows a sensitivity of 1.2 mA mM À1 for dopamine detection with a low detection limit of 0.05 mM. 127 Vilian et al integrated gold nanoparticles (AuNPs) into polypyrrole (PPy) on titanium carbide MXene (Ti 3 C 2 T x ) using a sonochemical route involving the in situ, oxidant-free polymerization of pyrrole monomers in the presence of HAuCl 4 . 128 Au-PPy-MXene-GCE exhibited better electrocatalytic reduction performance at a higher cathodic signal intensity and a lower reduction overpotential of À0.38 V (vs. Ag/AgCl) for nitrofurantoin (NFT) than Au-MXene, Au-PPy, and PPy-MXene GCEs.…”

Section: The Applications Of Mxenes In Electrochemical (Bio)sensorsmentioning

confidence: 99%

“…126 Wu et al designed strongly coupled molybdenum sulfide (MoS 2 )/MXene hybrids for constructing an efficient electrocatalytic biomimetic sensor. 127 Their results show that interfacial stresses, atomic defects, and an adjustable intersheet spacing between MoS 2 /MXene nanosheets significantly promote biomolecular adsorption and rapid electron transfer, resulting in excellent electrochemical activity and reaction kinetics. 127 The MoS 2 /Ti 3 C 2 T x modified electrode shows a sensitivity of 1.2 μA μM −1 for dopamine detection with a low detection limit of 0.05 μM.…”

Section: The Applications Of Mxenes In Biosensorsmentioning

confidence: 99%

“…127 Their results show that interfacial stresses, atomic defects, and an adjustable intersheet spacing between MoS 2 /MXene nanosheets significantly promote biomolecular adsorption and rapid electron transfer, resulting in excellent electrochemical activity and reaction kinetics. 127 The MoS 2 /Ti 3 C 2 T x modified electrode shows a sensitivity of 1.2 μA μM −1 for dopamine detection with a low detection limit of 0.05 μM. 127 Vilian et al integrated gold nanoparticles (AuNPs) into polypyrrole (PPy) on titanium carbide MXene (Ti 3 C 2 T x ) using a sonochemical route involving the in situ , oxidant-free polymerization of pyrrole monomers in the presence of HAuCl 4 .…”

Section: The Applications Of Mxenes In Biosensorsmentioning

confidence: 99%

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Recent advances using MXenes in biomedical applications

Lee,

Li,

Thomas

et al. 2024

Mater. Horiz.

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Section: The Applications Of Mxenes In Electrochemical (Bio)sensorsmentioning

confidence: 99%

Section: The Applications Of Mxenes In Biosensorsmentioning

confidence: 99%

Section: The Applications Of Mxenes In Biosensorsmentioning

confidence: 99%

See 1 more Smart Citation

Recent advances using MXenes in biomedical applications

Lee,

Li,

Thomas

et al. 2024

Mater. Horiz.

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“…These changes suggested that the MnO 2 molecular chain is effectively intercalated between the layers of Ti 3 C 2 T x . 69 The Ti−O bond was formed between MnO 2 and the heterointerface, which was generated due to the substitution of the O atom in MnO 2 for the F atom in the Ti− F bond. It is worth noting that a similar self-assembly phenomenon has been found in the cross-linking of MXene with graphene oxide (GO) in a previous study.…”

Section: Xafs Analysis For Electronic Structurementioning

confidence: 99%

Manganese Oxides with Different Morphologies In Situ Anchored onto Ti₃C₂T_x Nanosheets: Highly Effective Decontamination toward Sulfur Mustard Simulants

Huang,

Chen,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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Manganese oxides with porous structure and abundant active sites show potential in degrading sulfur mustard (HD). However, there is an interface effect between the oily liquid HD and nano oxides, and the powder is prone to agglomeration, which leads to incomplete contact and limited degradation ability. Here, we demonstrate a simple hydrothermal method for preparing MnO 2 /Ti 3 C 2 composites to address this problem. The influence of morphology and crystal structure on performance are examined. Herein, flower-like MnO 2 is loaded onto the surface or interlayer of Ti 3 C 2 -MXene nanosheets during in situ formation, significantly expanding the specific surface area. It also provides abundant acid− base sites and oxygen vacancies for the degradation of simulants 2chloro-ethyl-ethyl thioether (2-CEES) without external energy, resulting in a reaction half-life as fast as 12.5 min. The relationship between structure and performance is clearly elaborated through temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS), and X-ray absorption fine structure (XAFS) analyses. Based on in situ attenuated total reflection−Fourier transform infrared (ATR−FTIR) analysis, gas chromatography−mass spectrometry (GC−MS) analysis, and density functional theory (DFT) calculation, the proposed degradation pathway of the 2-CEES molecule is a synergistic effect of hydrolysis, elimination, and oxidation. Furthermore, the products are nontoxic or low toxic. Metal oxide/MXene composites are first illustrated for their potential use in degrading sulfur mustard, suggesting new insights into these materials as novel decontamination for decomposing chemical warfare agents.

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“…A suitable support to anchor Cu NPs is also extremely vital for improving catalytic performance through the construction of EMSI. Ti 3 C 2 T x , as a common kind of MXene, possess a 2D nanosheet structure with high specific surface areas and abundant functional groups, providing an ideal platform to anchor metal NPs. , Moreover, Ti 3 C 2 T x has been employed in biomedical biosensors recently. − Therefore, constructing Cu NPs/Ti 3 C 2 T x hybrids and tuning their EMSI may achieve excellent performance in nanozyme activity and further biomedical biosensors.…”

Section: Introductionmentioning

confidence: 99%

Electronic Metal–Support Interactions between Copper Nanoparticles and Nitrogen-Doped Ti₃C₂T_x MXene to Boost Peroxidase-like Activity for Detecting Astaxanthin

Guo

et al. 2023

ACS Appl. Mater. Interfaces

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Nanozymes with high activity and stability have emerged as a potential alternative to natural enzymes in the past years, but the relationship between the electronic metal–support interactions (EMSI) and catalytic performance in nanozymes still remains unclear. Herein, a copper nanoparticle nanozyme supported on N-doped Ti3C2T x (Cu NPs@N-Ti3C2T x ) is successfully synthesized and the modulation of EMSI is achieved by introducing N species. The stronger EMSI between Cu NPs and Ti3C2T x , involving electronic transfer and an interface effect, is revealed by X-ray photoelectron spectroscopy, soft X-ray absorption spectroscopy, and hard X-ray absorption fine spectroscopy at the atomic level. Consequently, Cu NPs@N-Ti3C2T x nanozyme exhibits remarkable peroxidase-like activity, surpassing its counterpart (Cu NPs, Ti3C2T x , Cu NPs-Ti3C2T x ), suggesting that EMSI significantly enhances catalytic performance. Benefiting from the excellent performance, the colorimetric platform based on Cu NPs@N-Ti3C2T x nanozyme for detecting astaxanthin is constructed and shows a wide linear detection range of 0.01–50 μM and a limit of detection of 0.015 μM in the sunscreens. Density functional theory is further conducted to reveal that the excellent performance is ascribed to the stronger EMSI. This work opens an avenue for studying the influence of EMSI toward catalytic performance of nanozyme.

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Interface electronic engineering of molybdenum sulfide/MXene hybrids for highly efficient biomimetic sensors

Cited by 7 publications

References 67 publications

Recent advances using MXenes in biomedical applications

Recent advances using MXenes in biomedical applications

Manganese Oxides with Different Morphologies In Situ Anchored onto Ti₃C₂T_x Nanosheets: Highly Effective Decontamination toward Sulfur Mustard Simulants

Electronic Metal–Support Interactions between Copper Nanoparticles and Nitrogen-Doped Ti₃C₂T_x MXene to Boost Peroxidase-like Activity for Detecting Astaxanthin

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Interface electronic engineering of molybdenum sulfide/MXene hybrids for highly efficient biomimetic sensors

Cited by 7 publications

References 67 publications

Recent advances using MXenes in biomedical applications

Recent advances using MXenes in biomedical applications

Manganese Oxides with Different Morphologies In Situ Anchored onto Ti3C2Tx Nanosheets: Highly Effective Decontamination toward Sulfur Mustard Simulants

Electronic Metal–Support Interactions between Copper Nanoparticles and Nitrogen-Doped Ti3C2Tx MXene to Boost Peroxidase-like Activity for Detecting Astaxanthin

Contact Info

Product

Resources

About

Manganese Oxides with Different Morphologies In Situ Anchored onto Ti₃C₂T_x Nanosheets: Highly Effective Decontamination toward Sulfur Mustard Simulants

Electronic Metal–Support Interactions between Copper Nanoparticles and Nitrogen-Doped Ti₃C₂T_x MXene to Boost Peroxidase-like Activity for Detecting Astaxanthin