Oxidative Functionalization of Polypropylene Mesh Surface by Radio Frequency Plasma

Development of Surface Plasmon Resonance Sensor Utilizing GaSe and WS2 for Ultra-Sensitive Early Detection of Dengue Virus

In this study, we developed an efficient method to prepare a crosslinked poly(vinyl pyrrolidone)/poly(ethylene glycol) diacrylate) (PVP/PEGDA) copolymer-grafted non-woven polypropylene (PP) sheet for which water can be used as a green solvent while providing a large amount of grafting functional groups on the PP matrix without diminishing mechanical properties. It was demonstrated that subsequent iodine complexation of the PP-g-PVP/PEGDA produces a strong antibacterial activity desirable for wound dressings. Efficient functionalization of hydrophobic non-woven PP sheet was achieved using electron beam (EB)-induced graft polymerization of vinyl pyrrolidone (VP) with the addition of hydrophilic crosslinker (PEGDA), resulting in the PP-g-PVP/PEGDA. In this preparation method, the grafting degree was remarkably increased up to 3-fold, even in the water solvent, and was found to be controlled by the concentration of VP and PEGDA. To impart antibacterial activity, the PP-g-PVP/PEGDA subsequently underwent iodine complexation, yielding PP-g-PVP/PEGDA-I. Structural analysis and water absorptivity studies confirmed that excellent water-absorbing PVP/PEGDA-I complexes were successfully introduced in the non-woven PP sheet without significant change in the porous structure of the PP sheet. Moreover, the PP-g-PVP/PEGDA-I exhibited strong antibacterial activities against Gram-negative E. coli, Gram-positive S. aureus, and MRSA bacterial species in a time-killing assay, and the activities showed high dependence on the grafting degree. This finding demonstrates that the PP-g-PVP/PEGDA-I can effectively and immediately inactivate external bacteria upon invasion. This green and efficient strategy is thus promising to produce PVP-I complex-based wound dressings with rapid antibacterial activity. 

Green and efficient radiation-based preparation of crosslinked poly(vinyl pyrrolidone)-iodine (PVP-I)-introduced polypropylene (PP) sheets for antibacterial wound dressing application

A Tantalum Disulfide (TaS_2) Mediated Long-Range Surface Plasmon Resonance Refractive Index Sensor with Improved Performance

Enhancing the Coloration of Polypropylene Surfaces through Low-Frequency Plasma Modification with Disperse Dyes

Development of cost effective, breathable & biocompatible nanosilver impregnated, acrylic acid grafted non-woven polypropylene (NWPP) wound dressing material with long lasting antimicrobial efficacy

Silver Nanoparticles-Immobilized-Radiation Grafted Polypropylene Fabric as Breathable, Antibacterial Wound Dressing

Gamma Radiation Induced Mutual Grafting of Quaternary Ammonium-Based Monomer on to Rayon Fibers to Improve its Water Absorbency and Antibacterial Efficacy

Tantalum Disulfide (TaS2)–Based Symmetrical Long-Range Surface Plasmon Resonance Biosensor with Ultrahigh Imaging Sensitivity and Figure of Merit

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Development of cost effective, breathable & biocompatible nanosilver impregnated, acrylic acid grafted non-woven polypropylene (NWPP) wound dressing material with long lasting antimicrobial efficacy

Silver Nanoparticles-Immobilized-Radiation Grafted Polypropylene Fabric as Breathable, Antibacterial Wound Dressing

Gamma Radiation Induced Mutual Grafting of Quaternary Ammonium-Based Monomer on to Rayon Fibers to Improve its Water Absorbency and Antibacterial Efficacy

Tantalum Disulfide (TaS2)–Based Symmetrical Long-Range Surface Plasmon Resonance Biosensor with Ultrahigh Imaging Sensitivity and Figure of Merit