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Photodynamic and photothermal bacteria targeting nanosystems for synergistically combating bacteria and biofilms.
J Nanobiotechnology
January 2025
Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
The escalating hazards posed by bacterial infections underscore the imperative for pioneering advancements in next-generation antibacterial modalities and treatments. Present therapeutic methodologies are frequently impeded by the constraints of insufficient biofilm infiltration and the absence of precision in pathogen-specific targeting. In this current study, we have used chlorin e6 (Ce6), zeolitic imidazolate framework-8 (ZIF-8), polydopamine (PDA), and UBI peptide to formulate an innovative nanosystem meticulously engineered to confront bacterial infections and effectually dismantle biofilm architectures through the concerted mechanism of photodynamic therapy (PDT)/photothermal therapy (PTT) therapies, including in-depth research, especially for oral bacteria and oral biofilm.
View Article and Find Full Text PDFBioorthogonal reaction-mediated photosensitizer-peptide conjugate anchoring on cell membranes for enhanced photodynamic therapy.
Biomater Sci
January 2025
School of Engineering, Westlake University, Hangzhou, Zhejiang 310023, China.
Photodynamic therapy (PDT), utilizing a photosensitizer (PS) to induce tumor cell death, is an effective modality for cancer treatment. PS-peptide conjugates have recently demonstrated remarkable antitumor potential in preclinical trials. However, the limited cell membrane binding affinity and rapid systemic clearance have hindered their transition to clinical applications.
View Article and Find Full Text PDFPhotodynamic therapy combined with quaternized chitosan antibacterial strategy for instant and prolonged bacterial infection treatment.
Carbohydr Polym
March 2025
Key Laboratory of Coal Conversion and New Carbon Materials of Hubei Province, Institute of Advanced Materials and Nanotechnology, School of Chemistry and Chemical Engineering, School of Medicine, Wuhan University of Science and Technology, Wuhan, China.
Drug-resistant bacterial infections represent a critical global public health challenge, driven largely by the misuse and overuse of antibiotics. Tackling the growing threat of bacterial resistance necessitates the development of innovative antibacterial agents that function independently of traditional antibiotics. In this study, novel antibacterial nano-micelles were rationally designed by conjugating quaternized chitosan with the photosensitizer chlorin e6.
View Article and Find Full Text PDFA powerful organic photosensitizer for effective treatment of malignant tumor via activating antitumor immune response.
Chembiochem
January 2025
Peking University Cancer Hospital: Beijing Cancer Hospital (inner mongolia campus), Department of Interventional Therapy, CHINA.
Photodynamic therapy (PDT) has emerged as an innovative approach in cancer treatment, effectively inducing tumor cell death through light-triggered reactive oxygen species (ROS) generation. Additionally, PDT can also trigger antitumor immune responses, thereby reducing the risk of postoperative tumor recurrence. However, the development of highly efficient photosensitizers aimed at activating immune responses for comprehensive tumor eradication remains at an early stage.
View Article and Find Full Text PDFEncapsulation of synthesized purpurin-18-N-aminoimide methyl ester in lipid nanovesicles for use as agents in photodynamic cancer therapy.
J Pharm Sci
January 2025
Center for Nano Manufacturing and Department of Nanoscience and Engineering, Inje University, Gimhae 50834, Republic of Korea. Electronic address:
This study aimed to synthesize purpurin-18-N-aminoimide methyl ester (P18 N AI ME) and encapsulate it into lipid nanovesicles (LNVs) for potential application as photodynamic therapy (PDT) agents in cancer therapy. PDT, a light-induced treatment, offers several advantages over conventional cancer treatments, such as minimal invasiveness and localized action. P18 N AI ME, a chlorine class photosensitizer model drug, was synthesized in an attempt to treat tumor in deeper tissues by interacting long-wavelength light.
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