Abstract We present a study of the controlled biodegradation polylactic acid (PLA) reinforced with high lignin containing microfibrillated cellulose (MFLC) isolated from chemi-thermomechanical pulp. The surface MFLC was modified using an acetylation method to decrease its polarity. Biocomposites different and acetylated (Ac-MFLC) contents were fabricated via solvent casting method. biocomposite...

Highly biocompatible polylactic acid (PLA)-derived polymers are used for different biomedical applications such as orthopaedic screws and drug delivery devices. Nevertheless their clinical use is limited by their proinflammatory characteristics. Vitamin E (α-tocopherol, Vit. E), a natural antioxidant and anti-inflammatory agent has been used to improve different biomaterials biostability [1], a...

OBJECTIVE To investigate the inhibitory effects of 25-hydroxyvitamin D3 (25(OH)D3)-loaded polylactic acid (PLA) microspheres on inflammatory response in diabetic periodontitis. METHODS 25(OH)D3-loaded PLA microspheres were produced using emulsion-solvent evaporation method. Rat bone marrow stromal cells (BMSCs) cultured with Aggregatibacter actinomycetemcomitans in high glucose medium were ch...

Polymer composites filled with high thermal and electrical conductivity nanofillers show enhanced thermo-electric properties which encourage their use in heat transfer applications. In the present study, nanocomposites based on polylactic acid (PLA) containing up to 9 wt% of multi-walled carbon nanotubes (trade name: N7000) graphene nanoplates TNIGNP) are produced via melt compounding then morp...

In the automotive sector, which is one of sectors where polymers are mostly used, their behaviour and compatibility in secondary processes such as painting coating applications important preference according to usage areas well mechanical thermal properties. this context, it known that surface wettability a polymer material great importance for different application can be stated wetting non-we...

Introduction: The received dose to the surface of tumor bed is one of the main issues in beast intraopeative radiotherapy (IORT). Totally, the administered dose to the surface is usually lower than that of radiotherapy reference point (distal end of tumor bed). Employing a buildup bolus can effectively increase the surface dose and therefore, eliminate such created cold points ...

The use of biodegradable polymers in the field of orthopaedic surgery has gained increased popularity, as surgical pins and screws, and as potential biological scaffolds for repairing cartilage and bone defects. One such group of polymers that has gained considerable attention are the polyesters, poly(lactide-co-glycolide) (PLAGA) and polylactic acid (PLA), because of their minimal tissue infla...

In this work, a new methodology was developed to disperse nanofibrillated cellulose (CNF) in polylactic acid (PLA) composites for 3D printing. The nanofibres were modified by grafting PLA onto their surface through in-situ polymerisation of L-lactide. This modification changed subsequent fibre/PLA interaction and enabled the production reinforced microparticles Pickering emulsion approach. We d...