The antitumor effects of disulfiram (DSF) -a conventional medication used to treat alcohol dependence-have been documented in numerous studies. However, because of its low water solubility and Cu-dependent anticancer effects, the application of DSF in cancer therapy has been limited. Nanofibrous membranes produced via electrospinning have large specific surface areas. Consequently, they have been extensively used in biomedical applications, such as tissue scaffolding, drug delivery. In this study, a polylactic acid nanofibrous membrane was designed to encapsulate Cu and DSF. The encapsulated drug was released when the membranes came into contact with the tumor tissue. DSF functioned as a Cu-ion carrier and combined with Cu to induce tumor-cell apoptosis. The anticancer properties of the drug-loaded nanofibrous membrane were verified at the cellular level using in vitro experiments with cells. The results indicated that DSF and Cu were released from the fiber membrane, and the combination of DSF and Cu exhibited a better of cancer are proposed.
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http://dx.doi.org/10.1016/j.ijbiomac.2024.137469 | DOI Listing |
Macromol Rapid Commun
December 2024
Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, St. Gallen, 9014, Switzerland.
Facemask materials have been under constant development to optimize filtration performance, wear comfort, and general resilience to chemical and mechanical stress. While single-use polypropylene meltblown membranes are the established go-to material for high-performing mask filters, they are neither sustainable nor particularly resistant to sterilization methods. Herein an in-depth analysis is provided of the sterilization efficiency, filtration efficiency, and breathing resistance of selected aerosol filters commonly implemented in facemasks, with a particular focus on the benefits of nanofibrous filters.
View Article and Find Full Text PDFSmall
December 2024
School of Materials Science and Engineering, State Key Laboratory of Material Processing and Die and Mold Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China.
The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are key processes in numerous oxygen-involved applications over a wide temperature range. Despite advances in nanofiber engineering to increase active site density and catalytic efficiency for ORR/OER, conventional electrode fabrication methods often compromise the integrity of nanofibrous structures. Herein, a robust strategy is presented for the fabrication of LaCoNiO (LCN) nanofibrous membranes using optimized electrospinning techniques.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China. Electronic address:
Particulate matters (PMs), one of the major airborne pollutants, continue to seriously threaten human health and the environment. Here, a self-crystal-induced electret enhancement (SCIEE) strategy was developed to promote the in-situ electret effect and polarization properties of electrospun poly(L-lactic acid) (PLLA) nanofibers. The strategy specifically involved the elaborate pre-structuring of stereocomplex crystals (SCs) with uniform dimensions (∼300 nm), which were introduced into PLLA electrospinning solution as the electrets and physical cross-linking points of high density.
View Article and Find Full Text PDFEnviron Res
December 2024
State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, PR China; College of Petroleum and Gas Engineering Southwest Petroleum University, Chengdu, 610500, PR China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, 610500, PR China. Electronic address:
Adjusting the structure of the membrane and improving its performance proved to be an effective technique for accomplishing efficient dye wastewater purification. Water erosion of polyvinylpyrrolidone (PVP) core in polyacrylonitrile (PAN) nanofiber membrane modified with UiO-66-NH was successfully achieved, in this study, using coaxial electrospinning, and ZIF-8 with excellent performance was further epitaxy-grown in situ. Two differently shaped and positively charged MOFs confer strong adsorption capacity (adsorption capacity >2042 mg/g) on cationic dyes.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai 201620, China.
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