The harsh environment of diabetic wounds, including bacterial infection and wound hypoxia, is not conducive to wound healing. Herein, an enzyme-like photocatalytic octahedral Rh/AgMoO is developed to manage diabetic-infected wounds. The introduction of Rh nanoparticles with catalase-like catalytic activity can enhance the photothermal conversion and photocatalytic performance of Rh/AgMoO by improving near-infrared absorbance and promoting the separation of electron-hole pairs, respectively. Rh/AgMoO can effectively eliminate pathogens through a combination of photothermal and photocatalytic antibacterial therapy. After bacteria inactivation, Rh/AgMoO can catalyze hydrogen peroxide to produce oxygen to alleviate the hypoxic environment of diabetic wounds. The in vivo treatment effect demonstrated the excellent therapeutic performance of Rh/AgMoO on diabetic infected wounds by removing infectious pathogens and relieving oxygen deficiency, confirming the potential application of Rh/AgMoO in the treatment of diabetic infected wounds.
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http://dx.doi.org/10.1002/smll.202402723 | DOI Listing |
Sci Adv
November 2024
School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, Beijing Institute of Technology, Beijing 100081, China.
Sluggish surface reaction is a critical factor that strongly governs the efficiency of photocatalytic solar fuel production, particularly in CO-to-ethanol photoconversion. Here, inspired by the principles underlying enzyme catalytic proficiency and specificity, we report a biomimetic photocatalyst that affords superior CO-to-ethanol photoreduction efficiency (5.5 millimoles gram hour in average with 98.
View Article and Find Full Text PDFJ Colloid Interface Sci
February 2025
College of Chemistry and Materials Science, Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Chemical Biology Key Laboratory of Hebei Province, Hebei University, Baoding 071002, PR China; Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding 071002, PR China. Electronic address:
Mesoporous platinum (mPt) nanozyme possessed enzyme-like property of catalase (CAT) and peroxidase (POD), but the insufficient hydrogen peroxide (HO) concentration severely restricted its application in photodynamic therapy (PDT) and catalytic therapy. Herein, by depositing ultrasmall gold nanoparticles (AuNPs) and modifying photosensitizer IR808, a multifunctional nanozyme (mPt@Au-IR808) was designed to promote PDT/catalytic therapy through cascade enzyme-like reactions of glucose oxidase (GOx) and CAT/POD. In tumor microenvironment, the CAT-like oxygen (O) generation improved the PDT efficacy, and the POD-like hydroxyl radical (·OH) generation achieved endogenous catalytic therapy.
View Article and Find Full Text PDFSmall
October 2024
Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), School of Physical and Mathematical Sciences, Nanjing Tech University (NanjingTech), Nanjing, 211816, China.
The harsh environment of diabetic wounds, including bacterial infection and wound hypoxia, is not conducive to wound healing. Herein, an enzyme-like photocatalytic octahedral Rh/AgMoO is developed to manage diabetic-infected wounds. The introduction of Rh nanoparticles with catalase-like catalytic activity can enhance the photothermal conversion and photocatalytic performance of Rh/AgMoO by improving near-infrared absorbance and promoting the separation of electron-hole pairs, respectively.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2024
College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, China. Electronic address:
Interface engineering and vacancy engineering play an important role in the surface and electronic structure of nanomaterials. The combination of the two provides a feasible way for the development of efficient photocatalytic materials. Here, we use glutathione (GSH) as a coordination molecule to design a series of CuS nanomaterials (CuS-GSH) rich in sulfur vacancies using a simple ultrasonic-assisted method.
View Article and Find Full Text PDFJ Control Release
June 2024
Department of Prosthodontics, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School of Stomatology, Jilin University, Changchun, 130021, PR China. Electronic address:
The sulfate radical (SO), known for its high reactivity and long lifespan, has emerged as a potent antimicrobial agent. Its exceptional energy allows for the disruption of vital structures and metabolic pathways in bacteria that are usually inaccessible to common radicals. Despite its promising potential, the efficient generation of this radical, particularly through methods involving enzymes and photocatalysis, remains a substantial challenge.
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