Results 61 to 70 of about 76,358 (304)

Pyrolysis Kinetic Study of Polylactic Acid

Polymers, 2022
Polylactic acid (PLA) is a biodegradable polymer and is mainly used in the textile and food packaging fields. The aim of this work is to build knowledge on the kinetics of the pyrolysis of PLA with the help of thermogravimetric analysis (TGA) using four model-free methods, namely Friedman, Flynn–Wall–Qzawa (FWO), Kissinger–Akahira–Sunose (KAS), and ...
Zaid Alhulaybi, Ibrahim Dubdub, Mohammed Al-Yaari, Abdulrahman Almithn, Abdullah F. Al-Naim, Haidar Aljanubi   +5 more
openaire   +2 more sources

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

Advanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert, Daniel Fougnier, Bo Van Durme, Jenna Grutzmacher, Ryan Clarke, Susan Cao, Zhenghao Li, Ujjwal Aryal, Jason A. Horton, Sandra Van Vlierberghe, Pranav Soman   +10 more
wiley   +1 more source

Polylactic/polyglycolic acid copolymer is a good carrier for BMP-2 on bone regeneration?

Bioscience Journal, 2017
The aim of this work was to evaluate the role of polylactic /polyglycolic acid copolymer as carrier for BMP-2 on bone regeneration in rat calvarium. Forty five adult male rats underwent 5-mm critical defects in bone calvaria to be divided into three ...
Alexandre Ladeira Veloso dos Anjos, Roble Casares Perez, Bárbara Maciel Braga, Mariza Akemi Matsumoto, Roberta Okamoto, Patrícia Pinto Saraiva, Andréia Aparecida da Silva, Thiago Amadei Pegoraro   +7 more
doaj   +3 more sources

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

The sustainability of communicative packaging concepts in the food supply chain. A case study: part 1. Life cycle assessment [PDF]

, 2011
Purpose In recent years, a new perspective for food packaging has emerged as a result of several issues like quality, safety, competitive prices or providing of useful information to consumers.
Cordero, P., Dobon, A., Hortal, M., Kreft, F., Ostergaard, S.R., Robertsson, M., Smolander, M.   +6 more
core   +3 more sources

Development of a Synthetic Hydrogel to Foster Microvascularization of an Endometriosis Microphysiological System

Advanced Healthcare Materials, EarlyView.
ABSTRACT The ascent of novel alternative methods in drug development spotlights the dual needs for improved biological fidelity to in vivo, along with reproducibility, especially in regulatory applications. The need for pre‐clinical models of patient‐derived endometriosis lesions motivates the development of a vascularizable, completely synthetic ...
Lauren Pruett, Laura Bahlmann, Ryan Ogi, Angela Jiao, Priyatanu Roy, Matthew Johnson, David Trumper, Linda Griffith   +7 more
wiley   +1 more source

Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Maderas: Ciencia y Tecnología, 2021
Polylactic acid is one of the most used biopolymers due to its overall properties and biodegradability. Nevertheless, polylactic acid  has important drawbacks such as brittleness, low thermal stability, and higher cost than most commodity polymers.
Aida Pérez-Fonseca, Verónica Ramírez-Herrera, Francisco Fuentes-Talavera, Denis Rodrigue, José Silva-Guzmán, Jorge Robledo-Ortíz   +5 more
doaj  

Influence of accelerated ageing on the physico-mechanical properties of alkali-treated industrial hemp fibre reinforced poly(lactic acid) (PLA) composites [PDF]

, 2010
30 wt% aligned untreated long hemp fibre/PLA (AUL) and aligned alkali treated long hemp fibre/PLA (AAL) composites were produced by film stacking and subjected to accelerated ageing. Accelerated ageing was carried out using UV irradiation and water spray
Foreman, Nic J., Islam, Mohammad Saiful, Pickering, Kim L.   +2 more
core   +2 more sources

Copolymers of Poly(Butylene Trans‐1,4‐Cyclohexanedicarboxylate)/Pripol as New Biomaterial Platform for Small Diameter Vascular Graft

Advanced Healthcare Materials, EarlyView.
Electrospun tubular scaffolds from novel PBCE‐based copolyesters and blends were designed as candidates for small‐diameter vascular grafts. They combine defect‐free architecture, blood‐compatible surfaces, and mechanical properties comparable to native vessels.
Edoardo Bondi, Gabriele Obino, Giulia Guidotti, Alberto Sensini, Martijn van Griensven, Antonio Junior Lepedda, Nadia Lotti, Lorenzo Moroni   +7 more
wiley   +1 more source

Polylactic Acid—Lemongrass Essential Oil Nanocapsules with Antimicrobial Properties

Pharmaceuticals, 2016
Polylactic acid was combined with lemongrass essential oil (EO) to produce functional nanocapsules (NCs). The obtained polylactic acid nanoparticles showed antimicrobial activity both with and without the presence of lemongrass oil; however, the presence
Ioannis L. Liakos, Alexandru Mihai Grumezescu, Alina Maria Holban, Iordache Florin, Francesca D’Autilia, Riccardo Carzino, Paolo Bianchini, Athanassia Athanassiou   +7 more
doaj   +1 more source