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Pluronic-coated polylipoic acid-based nanoparticles (F127@PLA-NPs) have great potential as biodegradable nanovectors for delivering active molecules to different organs in complex diseases. In this study we describe the in vivo biodistribution, safety and ability to deliver molecules of F127@PLA-NPs in healthy rats following intravenous administration. Adult rats were injected with 10 mg/kg of rhodamine B-labeled F127@PLA-NPs, and NPs fluorescence and MFI rate were measured by confocal microscopy in whole collected organs. The NPs accumulation rate was maximal in the heart, compared to the other organs. At the cellular level, myocytes and kidney tubular cells showed the highest NPs uptake. Neither histopathological lesion nor thrombogenicity were observed after NPs injection. Finally, F127@PLA-NPs were tested in vitro as miRNAs delivery nanosystem, and they showed good ability in targeting cardiomyocytes. These results demonstrated that our F127@PLA-NPs constitute a biological, minimally invasive and safe delivery tool targeting organs and cells, such as heart and kidney.
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http://dx.doi.org/10.1016/j.nano.2022.102593 | DOI Listing |
Acta Biomater
August 2025
College of Chemistry and Materials Science, Fujian Normal University, Fujian 350007, China; Fujian-Taiwan Science and Technology Cooperation Base of Biomedical Materials and Tissue Engineering, Fujian 350007, China; Engineering Research Center of Industrial Biocatalysis, Fujian 350007, China. Electr
Strong and durable adhesion of bioadhesives on wet/underwater tissues is still challenging because of the hindrance of the hydration layer and swelling of the adhesive. Here a water-induced self-hardening bioadhesive (p(LA-ABO)) composed of poly(lipoic acid) (PolyLA) capped with 4-allyl-1,2-benzenediol (ABO), is prepared through a solvent evaporation-induced self-polymerization method. During underwater curing, the water-induced aggregation of the hydrophobic PolyLA chain of the bioadhesive leads to a soft-to-hard transition, therefore enhancing its cohesion and wet/underwater tissue adhesion.
View Article and Find Full Text PDFBiomaterials
January 2026
School of Material Science and Engineering, Tianjin University, Tianjin, 300350, China; State Key Laboratory of Precious Metal Functional Materials, Tianjin, 300350, China. Electronic address:
Diabetic wounds are notorious for their difficulty in healing and high recurrence rate, due to their harsh inflammatory microenvironment and the peripheral neuropathy caused by a hyperglycemic condition. However, current research often overlooks the impact of diabetic peripheral neuropathy on hindering wound healing. Here, we develop an adhesive elastomeric wound dressing by combining the natural active molecule lipoic acid (LA) with the clinically applied hypoglycemic drug metformin (Met), integrating the characteristics of remodeling the wound microenvironment and restoring peripheral nerve function, while stabilizing polyLA through the formation of strong salt bridge hydrogen bonds between guanidyl and carboxyl.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2024
Department of Emergency, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, P. R. China.
Developing a strongly adhesive, easily removable, and robust bandage is valuable in trauma emergencies. Poly(lipoic acid) (PLA)-based adhesives with good mechanical properties have been well-developed through a thermal ring-opening polymerization (ROP) method that is easiness. However, the additive manufacturing of PLA-based adhesives remains a challenge.
View Article and Find Full Text PDFBioact Mater
October 2024
School of Material Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300352, China.
Breast cancer is the most common cancer among women worldwide, and adjuvant radiotherapy (RT) following tumor removal is one of the most commonly used treatments for breast cancer. However, the high risk of tumor recurrence and inevitable radiation skin injury after RT remain fatal problems, seriously challenging the patient's postoperative rehabilitation. Herein, a multifunctional poly (lipoic acid)-based hydrogel is constructed through one-step heating the mixture of α-lipoic acid (LA)/arginine (Arg)/silk fibroin (SF), without introducing any non-natural molecules.
View Article and Find Full Text PDFJ Mater Chem B
May 2024
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
Lipoic acid (LA) is a versatile antioxidant that has been used in the treatment of various oxidation-reduction diseases over the past 70 years. Owing to its large five-membered ring tension, the dynamic disulfide bond of LA is highly active, enabling the formation of poly(lipoic acid) (PLA) ring-opening polymerization (ROP). Herein, we first summarize disulfide-mediated ROP polymerization strategies, providing basic routes for designing and preparing PLA-based materials.
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