Preparation and Characterization of Biodegradable Blend Membranes of PBS/CA

Ghaffarian, Vahideh; Mousavi, Seyed Mahmoud; Bahreini, Masoumeh; Afifi, Mahnaz

doi:10.1007/s10924-012-0551-1

Cited by 46 publications

(32 citation statements)

References 22 publications

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“…It is known that for hydrophobic materials (i. a. PCL) surface roughness enhances the hydrophobicity [39,40]. On the other hand, the water droplet can be spread easier on the more porous surface of membrane, which results in higher hydrophilicity [41]. It was previously shown that bioactive glass particles, as a hydrophilic material, remarkably improve the hydrophilicity of PCL matrix [9,18].…”

Section: Discussionmentioning

confidence: 99%

Poly(ε-caprolactone)-based membranes with tunable physicochemical, bioactive and osteoinductive properties

Dziadek¹,

Zagrajczuk²,

Menaszek

et al. 2017

J Mater Sci

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In contrast to currently used materials, membranes for the treatment of bone defects should actively promote regeneration of bone tissue beyond their physical barrier function. What is more, both material properties and biological features of membranes should be easily adaptable to meet the needs of particular therapeutic applications. Therefore, the role of preparation methods (nonsolvent-induced phase separation and thermal-induced phase separation) of poly(ε-caprolactone)-based membranes and their modification with gel-derived bioactive glass (BG) particles of two different sizes (\45 and \3 μm) in modulating material morphology, polymer matrix crystallinity, surface wettability, kinetics of in vitro bioactivity and also osteoblast response was investigated. Both surfaces of membranes were characterised in terms of their properties. Our results indicated a possibility to modulate microstructure (pore size ranging from submicron to hundreds of micrometres), wettability (from hydrophobic to fully wettable surface) and polymer crystallinity (from 19 to 60%) in a wide range by the use of various preparation methods and different BG particle sizes. Obtained composite membranes showed excellent in vitro hydroxyapatite forming ability after incubation in simulated body fluid. Here we demonstrated that bioactive layer formation on the surface of membranes occurred through ACP-OCP-CDHA-HCA transformation, that mimic in vivo bone biomineralization process. Composite membranes supported human osteoblast proliferation, stimulated cell differentiation and matrix mineralization. We proved that kinetics of bioactivity process and also osteoinductive properties of membranes can be easily modulated with the use of proposed variables. This brings new

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Section: Discussionmentioning

confidence: 99%

Poly(ε-caprolactone)-based membranes with tunable physicochemical, bioactive and osteoinductive properties

Dziadek¹,

Zagrajczuk²,

Menaszek

et al. 2017

J Mater Sci

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“…The schematic of experimental setup applied in this research can be found elsewhere [15]. The effective membrane area in the module is 70.88 cm 2 .…”

Section: Experimental Design and Proceduresmentioning

confidence: 99%

Factorial experimental design for treatment of an industrial wastewater using micellar-enhanced ultrafiltration

Namaghi

Mousavi

2015

Desalination and Water Treatment

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In the present study, micellar-enhanced ultrafiltration (MEUF) using linear alkylbenzene sulfonate (LAS) surfactant was applied in order to treat soft drink processing wastewater. The effects of two parameters of LAS surfactant concentration and transmembrane pressure (TMP) on the separation performance and flux were studied by applying a full factorial design. It was found that LAS concentration and TMP had negative and positive effect on the flux, respectively. The results showed that the optimum TMP for rejection of pollution indices of the wastewater was equal to 3.5 bars at the surfactant concentrations above critical micelle concentration (CMC). In addition, the stable flux and rejections were precisely predicted by the full factorial design models.

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“…Flux and rejection tests were carried out using a laboratory‐scale setup. The details of the experimental setup can be found elsewhere 28. Pure water and wastewater from a bakery products factory were used as feeds in the tests.…”

Section: Methodsmentioning

confidence: 99%

Polyethersulfone/Poly(D,L‐lactide) Blend Membranes: Preparation, Characterization, and Performance

et al. 2014

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Polyethersulfone (PES) was blended with poly(D,L-lactide) (PDLLA) to prepare asymmetric membranes using the phase inversion method. The effects of the blend ratios and poly(ethylene glycol) (PEG) as additive on the membrane structure, properties, and performance were investigated. The membranes were characterized by contact angle determination, scanning electron microscopy, porosity measurement, thermogravimetric analysis, degradation tests in compost, and dynamic tests for pure water flux and bakery product wastewater treatment. PES and PEG slightly reduced the membrane contact angle. Increasing the PDLLA concentration in the blend membranes enhanced the membrane degradation in compost and also the membrane porosity. The permeate flux of the membranes was improved, but the rejection of pollution indices did not change noticeably.

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Preparation and Characterization of Biodegradable Blend Membranes of PBS/CA

Cited by 46 publications

References 22 publications

Poly(ε-caprolactone)-based membranes with tunable physicochemical, bioactive and osteoinductive properties

Poly(ε-caprolactone)-based membranes with tunable physicochemical, bioactive and osteoinductive properties

Factorial experimental design for treatment of an industrial wastewater using micellar-enhanced ultrafiltration

Polyethersulfone/Poly(D,L‐lactide) Blend Membranes: Preparation, Characterization, and Performance

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