Using a visible light-triggered pH switch to activate nanozymes for antibacterial treatment

Xi, Juqun; Zhang, Jingjing; Qian, Xiaodong; An, Lanfang; Fan, Lei

doi:10.1039/c9ra09343e

Cited by 26 publications

(13 citation statements)

References 27 publications

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“…An mPAH has been combined with CuS nanoparticles, which mimicked peroxidase, for the treatment of a bacteria-infected wound. 47 The photo-induced pH drop by the mPAH enhanced the antibacterial activity of the nanozyme.…”

Section: Recent Applicationsmentioning

confidence: 99%

“…It is well-known that the properties of biological systems change with pH. Since mPAHs are capable of changing pH significantly under light, they have found applications in biotechnology and biomedical areas, 32,33,38,46–50 which are described in Section 3. It is worth mentioning that the pH of biological systems is often maintained by pH buffers.…”

Section: Coupling Mpahs With Functional Systemsmentioning

confidence: 99%

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Reversible photo control of proton chemistry

Liao

2022

Phys. Chem. Chem. Phys.

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Section: Recent Applicationsmentioning

confidence: 99%

Section: Coupling Mpahs With Functional Systemsmentioning

confidence: 99%

Reversible photo control of proton chemistry

Liao

2022

Phys. Chem. Chem. Phys.

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“…Au [19][20][21][22][23][24][25][26], Pt [27], Cu [28], Ir [29], Ag [30], Au-Pt [31,32], Pd-Cu [33], Pd-Pt [34], Au-Ag [35], etc), transition metal oxide or sulfide (e.g. Fe 3 O 4 [36][37][38], CuO [39], CeO 2 [40], V 2 O 5 [41], Co-V mixed metal oxide (MMO) [42], MoS 2 [43][44][45][46][47], NiS 2 [48], CuS [49][50][51][52], Co 4 S 3 [53], MnO 2 [54] etc), and nanocarbon (e.g. boron doped graphdiyne (B-GDY) [8], N-doped sponge-like carbon spheres (N-SCSs) [55], graphene quantum dots [56,57], etc)-based nanozymes, to recentlyadvanced metal organic framework (MOF) (e.g.…”

Section: Future Perspectivesmentioning

confidence: 99%

Efficient nanozyme engineering for antibacterial therapy

et al. 2022

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Antimicrobial resistance (AMR) has posed a huge threat to human health. It is urgent to explore efficient ways to suppress the spread of AMR. Antibacterial nanozymes has become one of the powerful weapons to combat AMR due to their enzyme-like catalytic activity with a broad-spectrum antibacterial performance. However, the inherent low catalytic activity of nanozymes limits their expansion into antibacterial applications. In this regard, a variety of advanced chemical design strategies have been developed to improve the antimicrobial activity of nanozymes. In this review, we have summarized the recent progress of advanced strategies to engineering efficient nanozymes for fighting against AMR, which can be mainly classified into catalytic activity improvement, external stimuli, bacterial affinity enhancement, and multifunctional platform construction according to the basic principles of engineering efficient nanocatalysts and the mechanism of nanozyme catalysis. Moreover, the deep insights into the effects of these enhancing strategies on the nanozyme structures and properties are highlighted. Finally, current challenges and future perspectives of antibacterial nanozymes are discussed for their future clinical potential.

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“…Various metal sulfide nanoparticles such as sphere-like CoS nanostructures, [18] WS 2 nanosheets, [19,20] MoS 2 , [21] FeS 2 , [22] CuS, [23] MoS 2 sheets, [24] FeS [25] and CuS nanoclusters [26] have been used as catalyst for peroxidase-like activity. Only a few reports are available on the peroxidase-like activity of doped metal sulfide nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Novel Thermal Decomposition Method for the Synthesis of Iron‐doped SnS₂ Nanoparticles and Studies on their Peroxidase‐like Activity

Lather

Jeevanandam

2022

ChemNanoMat

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Iron‐doped SnS2 nanoparticles (Sn1‐xFexS2) have been synthesized by a novel thermal decomposition method. Phase analysis was done using powder XRD. FE‐SEM and TEM studies show flake‐like morphology for iron doped SnS2 nanoparticles. Diffuse reflectance spectroscopy results demonstrate blue shift of band gap of Sn1‐xFexS2 nanoparticles with respect to pure SnS2 nanoparticles. M−H measurements of iron doped SnS2 nanoparticles at 300 K and 2 K show weak ferromagnetic behaviour when x=0.10 and 0.15. When x=0.20, paramagnetic behaviour at 300 K and superparamagnetic behaviour at 2 K are observed. ZFC‐FC measurements were also carried out for the iron doped SnS2 nanoparticles. The Sn1‐xFexS2 nanoparticles were used as catalyst for peroxidase‐like activity and for the detection of H2O2.

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Using a visible light-triggered pH switch to activate nanozymes for antibacterial treatment

Abstract: An in situ pH decrease is achieved under visible-light illumination on a photoacid generator, and thus activates the peroxidase-like activity of CuS nanoparticles to treat bacteria-infected wounds.

Cited by 26 publications

References 27 publications

Reversible photo control of proton chemistry

Reversible photo control of proton chemistry

Efficient nanozyme engineering for antibacterial therapy

Novel Thermal Decomposition Method for the Synthesis of Iron‐doped SnS₂ Nanoparticles and Studies on their Peroxidase‐like Activity

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Using a visible light-triggered pH switch to activate nanozymes for antibacterial treatment

Abstract: An in situ pH decrease is achieved under visible-light illumination on a photoacid generator, and thus activates the peroxidase-like activity of CuS nanoparticles to treat bacteria-infected wounds.

Cited by 26 publications

References 27 publications

Reversible photo control of proton chemistry

Reversible photo control of proton chemistry

Efficient nanozyme engineering for antibacterial therapy

Novel Thermal Decomposition Method for the Synthesis of Iron‐doped SnS2 Nanoparticles and Studies on their Peroxidase‐like Activity

Contact Info

Product

Resources

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Novel Thermal Decomposition Method for the Synthesis of Iron‐doped SnS₂ Nanoparticles and Studies on their Peroxidase‐like Activity