surface engineering of macroporous polypropylene

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Biodegradable FeMnSi Sputter-Coated Macroporous Polypropylene Membranes for the Sustained Release of Drugs Jordina Fornell 1 Jorge Soriano 2 Miguel Guerrero 1 * Juan de Dios Sirvent 1 Marta Ferran-Marqus 1 Elena Ibez 2 Leonardo Barrios 2 Maria Dolors Bar 1 Santiago Suriach 1 Carme Nogus 2 * Jordi Sort 1 3 * and Eva Pellicer 1 1 Departament de Fsica Universitat The surface properties of polymer membranes are crucial to their application This Review provides concise comments on surface engineering strategies for macroporous polypropylene membranes The applications of surface engineering concepts in membrane-based bioreactors bioseparation biosensing biosynthesis environmental analysis water purification energy technology medical devices

Grafting Branch Length and Density Dependent

Branch length and density have critical effects on membrane performances however it is regarded to be traditionally difficult to investigate the relationship due to the uncontrolled membrane modification methods In this study zwitterionic polymer with controlled grafting branch chain length (degree of polymerization) and grafting density (grafting chains per membrane area) was tethered to

PEI polypropylene and polyamide with multiwall carbon nanotubes The effects of blooming photoluminescence increase and surface bond passivation by nanocoatings of "PEI-multiwall carbon nanotubes" on macroporous silicon structures are evaluated 2 Materials and Methods Carbon high purity multiwall nanotubes (CNTs) of

The structure of the title copolymers was investigated with small angle X ray scattering It was found that fractal structure existed in the macroporous resins with crosslinking degree exceeding 20% and the fractal dimension was 2 2 to 2 8 in the range of several Angtroms to several hundred Angstroms

VitaMESH™ Macroporous PP Surgical Mesh is an implant suitable for different types of fascial defects VitaMESH™ provides the favourable ingrowth and healed strength characteristics of a large pore monofilament polypropylene mesh with optimised handling and biocompatibility attributes in one high performance implant of condensed polypropylene (cPP)

VitaMESH™ Macroporous PP Surgical Mesh is an implant suitable for different types of fascial defects VitaMESH™ provides the favourable ingrowth and healed strength characteristics of a large pore monofilament polypropylene mesh with optimised handling and biocompatibility attributes in one high performance implant of condensed polypropylene (cPP)

Highly permeable macroporous polymers via controlled

E-mail addresses: alexander bismarckunivie ac at a bismarckimperial ac uk Bismarck) Chemical Engineering Science 137 (2015) 786–795 formation mechanicalrupture thinpolymeric walls between pores post synthesis (Menner Bismarck 2006) monomericfilm between droplets during polymerisation (Cameron et al 1996) haseven been possible produceemulsion templated macroporous polymers

The structure of the title copolymers was investigated with small angle X ray scattering It was found that fractal structure existed in the macroporous resins with crosslinking degree exceeding 20% and the fractal dimension was 2 2 to 2 8 in the range of several Angtroms to several hundred Angstroms

Decoloring methyl orange (MeOr) under sunlight was conducted in a photocatalytic membrane reactor (PMR) Zinc oxide nanoparticles (ZnO NPs) were suspended in the solution or immobilized on the membrane The membrane was modified by grafting 2-hydroxyethyl methacrylate (HEMA) to enhance the adsorption of ZnO NPs on the hydrophobic membrane surface and improve the membrane permeability

Surface modification of polypropylene macroporous membrane was carried out by the UV induced graft-polymerization with and without the use of the chain transfer agent benzyl dithiobenzoate The antifouling performance was characterized by the filtration of protein dispersion The results demonstrate that the degree of grafting increased with the prolongation of UV irradiation time in the

Evaluation of peritoneal adhesions formation and tissue response to polypropylene – poli (2-hydroxyethyl methacrylate)-(polyHEMA) implant on rats' abdominal wall Acta Cirrgica Brasileira - Vol 25 (4) 2010 - 338 This is the process of mesh incorporation However this same process represents the stimulus to definitive adhesion formation

Co-deposition of tannic acid and diethlyenetriamine for surface hydrophilization of hydrophobic polymer membranes Appl Surf Sci 2016 360: 291-297 06 Qi-Zhi Zhong Xiang Yu Ming-Xu Cui Ling-Shu Wan * Zhi-Kang Xu Conformal and non-conformal surface modification of honeycomb-patterned porous films via tunable Cassie-Wenzel transition

Facile synthesis of flexible macroporous polypropylene sponges for separation of oil and water and the geometrical rough surface caused by the macroporous structure of the sponge The sponge could float in water without sinking because of its light weight and hydrophobicity At the same time most of crude oils having lower densities than water tend to form a separated layer on the top of

Pigment Resin Technology available volumes and issues Advanced search Pigment Resin Technology Issue(s) available: 417 – From Volume: 1 Issue: 1 to Volume: 49 Issue: 4 Strapline: The international journal of colorants polymers and colour applications Category: Mechanical and Materials Engineering Search All Issues EarlyCite Volume 49 Issue 4 2020 Issue 3 2020 Issue 2 2020

VitaMESH™ BLUE Lightweight Macroporous PP Surgical

VitaMESH™ BLUE Lightweight Macroporous PP Surgical Mesh is an implant suitable for different types of fascial defects VITAMESH BLUE provides the favourable compliance and healed strength characteristics of a large pore monofilament polypropylene mesh with optimised handling and biocompatibility attributes in one high performance implant of lightweight condensed polypropylene

Mussel-inspired chemistry has received widespread attention in material surface engineering due to its universal adhesion property and powerful functionalization capacity This comprehensive review summarizes the recent advances of mussel-inspired surface engineering strategies for water-remediation materials such as filters adsorbents catalysts and photothermal evaporation devices

We present many examples of surface engineered polymeric biomaterials with nanosize modified layers controlled protein adsorption and cellular interactions potentially applicable for tissue and/or blood contacting devices scaffolds for cell culture and tissue engineering biosensors biological microchips as well as approaches to their preparation

The investigation on the adsorption behaviors of theanine on HD-8 macroporous anion resin were conducted Effect of PH on adsorption of theanine was not obvious within range of 2~7 The adsorption data fit well into the Freundlich isotherm equation within temperature range of 303~323 K and investigative concentration range The rate of adsorption was under control by some factors

The laser-induced surface textures on the metal mold substrates were then replicated onto polypropylene substrates via the polymer injection molding process The surface wettability of the molded polypropylene was found to be changed from the original hydrophilicity to super-hydrophobicity This developed process holds the potential to improve the performance of fabricated plastic products

Facile synthesis of flexible macroporous polypropylene sponges for separation of oil and water and the geometrical rough surface caused by the macroporous structure of the sponge The sponge could float in water without sinking because of its light weight and hydrophobicity At the same time most of crude oils having lower densities than water tend to form a separated layer on the top of

Surface Topology and Cytocompatibility of Polyphosphate Macroporous Ceramics with Recoating LIU Bin 1 DONG Yin-Sheng 2 WU Hong-Yan 1 SU Jing 1 LIN Ping-Hua 2 GUO Zong-Ke 3 (1 School of Physics and Optoelectronic Engineering Nanjing University of Information Technology Nanjing 210044 China 2 School of Materials Science and Engineering Southeast University Nanjing

Engineering 2018 4(6): 816-821 : http a molded polypropylene surface measured surface profiles on (c) laser-textured Stavax steel and (d) molded polypropylene Fig 8 WCA of (a) original and (b) molded textured polypropylene surface [1] R E Jr Johnson R H Dettre D A Brandreth Dynamic contact angles and contact-angle hysteresis J Colloid Interface Sci 1977 62(2): 205-212

Surface modification of polypropylene macroporous membrane was carried out by the UV induced graft-polymerization with and without the use of the chain transfer agent benzyl dithiobenzoate The antifouling performance was characterized by the filtration of protein dispersion The results demonstrate that the degree of grafting increased with the prolongation of UV irradiation time in the