Due to their excellent properties, antimicrobial fiber membranes are widely applied in bioprotective materials. This work addresses the preparation of thermoplastic polyurethane (TPU)-based fiber membranes with active antimicrobial properties. 2-hydroxypropyl trimethyl ammonium chloride-terminated hyperbranched polymer (HBP-HTC) was synthesized and used as an antimicrobial agent. The fiber membranes were obtained by electrospinning a mixed solution of HBP-HTC and TPU. Different electrospinning conditions were investigated, such as the spinning voltage and drum rotation speed. The fiber membrane prepared under a 22 kV anode voltage and 100 rpm rotation speed had an average fiber diameter of 1.66 μm with a concentrated diameter distribution. Antibacterial tests showed that when the fiber membrane was loaded with 1500 mg/kg of HBP-HTC, the antibacterial rates of as well as both reached 99.99%, exhibiting excellent proactive antimicrobial performance. Moreover, the protective performance of the fiber membrane was outstanding, with a filtration efficiency of 99.9%, a hydrostatic pressure resistance greater than 16,758 Pa, and a moisture permeability of 2711.0 g⋅(m⋅d).
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11313460 | PMC |
| http://dx.doi.org/10.3390/ma17153761 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Nociceptor sodium channels shape subthreshold phase, upstroke, and shoulder of action potentials.
J Gen Physiol
March 2025
Institute for Neurophysiology, Uniklinik RWTH Aachen University, Aachen, Germany.
Voltage-gated sodium channels (VGSCs) in the peripheral nervous system shape action potentials (APs) and thereby support the detection of sensory stimuli. Most of the nine mammalian VGSC subtypes are expressed in nociceptors, but predominantly, three are linked to several human pain syndromes: while Nav1.7 is suggested to be a (sub-)threshold channel, Nav1.
View Article and Find Full Text PDFPhysicochemical profiles of mixed ruminal microbes in response to surface tension and specific surface area.
Front Vet Sci
January 2025
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Mexico.
Introduction: In ruminants, a symbiotic rumen microbiota is responsible for supporting the digestion of dietary fiber and contributes to health traits closely associated with meat and milk quality. A holistic view of the physicochemical profiles of mixed rumen microbiota (MRM) is not well-illustrated.
Methods: The experiment was performed with a 3 × 4 factorial arrangement of the specific surface area (SSA: 3.
Tumor and intratumoral pathogen cascade-targeting photothermal nanotherapeutics for boosted immunotherapy of colorectal cancer.
J Control Release
January 2025
State Key Laboratory of Separation Membranes and Membrane Processes & Key Laboratory of Hollow Fiber Membrane Materials and Membrane Processes (MOE) & Tianjin Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China. Electronic address:
Clinical benefits of immunotherapy in colorectal cancer (CRC) are limited due to the low immunogenicity and immunosuppressive tumor microenvironment. Fusobacterium nucleatum (Fn) is discovered to colonize CRC tumors and dampen immunotherapy by fostering an immunosuppressive TME. Herein, a controllable "Shielding-deshielding" N-acetylgalactosamine (GalNAc)-derived photothermal nanotherapeutic is developed to mediate cascade targeting toward tumor and intratumoral Fn for enhanced photothermal-immunotherapy.
View Article and Find Full Text PDFExploration of low-sulfonate lignin electrospinning conditions for the development of new renewable lubricant formulations.
Nanoscale
January 2025
Pro2TecS - Chemical Product and Process Technology Research Center. Department of Chemical Engineering and Materials Science. Universidad de Huelva. ETSI, Campus de "El Carmen", 21071 Huelva, Spain.
This study explores the preparation of lubricating oleo-dispersions using electrospun nanofibrous mats made from low-sulfonate lignin (LSL) and polycaprolactone (PCL). The rheological and tribological properties of the oleo-dispersions were significantly modulated for the first time through the exploration of LSL/PCL ratio and electrospinning conditions such as applied voltage, distance between the tip and collector, flow rate, ambient humidity, and collector configuration. Adequate uniform ultrathin fibers and Small-amplitude oscillatory shear (SAOS) functions of the oleo-dispersions, with storage modulus values ranging from 10 to 10 Pa at 25 °C, were obtained with a flow rate of 0.
View Article and Find Full Text PDFCollagen deposition in lung parenchyma driven by depletion of interstitial Lyve-1 macrophages prevents cigarette smoke-induced emphysema and loss of airway function.
Front Immunol
January 2025
Immunology Translational Research Programme, Yong Loo Lin School of Medicine, Department of Microbiology & Immunology, National University of Singapore, Singapore, Singapore.
Introduction: Collagen is essential for maintaining lung structure and function and its remodeling has been associated with respiratory diseases including chronic obstructive pulmonary disease (COPD). However, the cellular mechanisms driving collagen remodeling and the functional implications of this process in the pathophysiology of pulmonary diseases remain poorly understood.
Methods: To address this question, we employed ; mice with specific depletion of Lyve-1 macrophages and assessed the content, types and organization of collagen in lung compartments at steady state and after chronic exposure to cigarette smoke (CS).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!