Results 31 to 40 of about 165,650 (289)

Maintenance of chondrocyte phenotype during expansion on PLLA microtopographies

open access: yesJournal of Tissue Engineering, 2018
Articular chondrocytes are difficult to grow, as they lose their characteristic phenotype following expansion on standard tissue culture plates. Here, we show that culturing them on surfaces of poly(L-lactic acid) of well-defined microtopography allows ...
Elisa Costa   +3 more
doaj   +1 more source

Synthesis and Characterizations of Poly (Lactic Acid) by Ring-Opening Polymerization for Biomedical Applications

open access: yesChemical Engineering Transactions, 2014
The development of biomaterials for application in medicine is one of the great challenges of research in material science. The poly (a-hydroxy acids) are the principal biodegradable and bioresorbable polymers used in tissue engineering.
M. Savioli Lopes   +2 more
doaj   +1 more source

Journal of Materials Science / Reduced polarity and improved dispersion of microfibrillated cellulose in poly(lactic-acid) provided by residual lignin and hemicellulose [PDF]

open access: yes, 2016
in deutscher Sprache nicht verf\ufcgbarThe surface chemistry and dispersion in poly(lactic-acid) of microfibrillated wood and microfibrillated lignocellulose prepared from untreated and partially delignified beech were compared with conventional ...
Andorfer, L.   +8 more
core   +2 more sources

Biocomposite from polylactic acid and lignocellulosic fibers: structure-property correlations [PDF]

open access: yes, 2013
PLA biocomposites were prepared using three corncob fractions and a wood fiber as reference. The composites were characterized by tensile testing, scanning electron (SEM) and polarization optical (POM) microscopy.
Ahmed   +50 more
core   +1 more source

Microbial production of D-lactic acid from dried distillers grains with solubles [PDF]

open access: yes, 2019
D-Lactic acid production is gaining increasing attention due to the thermostable properties of its polymer, poly-D-lactic acid (PDLA). In this study, Lactobacillus coryniformis subsp. torquens, was evaluated for its ability to produce D-lactic acid using
Abdel-Rahman   +55 more
core   +1 more source

Branched PLGA derivatives with tailored drug delivery properties

open access: yesActa Pharmaceutica, 2020
Despite several shortcomings such as extreme hydrophobicity, low drug capacity, characteristic triphasic drug release pattern with a high burst effect, poly(lactic-co-glycolic acid derivatives are widely used in drug delivery.
Snejdrova Eva   +4 more
doaj   +1 more source

Compositions and medical devices for controlled release of nitric oxide and methods of production thereof [PDF]

open access: yes, 2015
The present disclosure describes compositions providing for controlled release of nitric oxide (NO) and methods for production of these compositions. In some embodiments, the compositions may include a biodegradable polymer and a nitric oxide-releasing ...
Balkus, Kenneth J., Jr., Liu, Harvey A.
core   +1 more source

Effect of Zinc Oxide Addition on Antibacterial Behavior of Hydroxyapatite-Poly lactic-co-glycolic acid Scaffold for Bone Tissue Engineering Applications [PDF]

open access: yesBiological Journal of Microorganism, 2018
Introduction: Infection after the surgery is one of the problems of bone scaffolds implants which is normally treated by systemic administration of antibiotics. But due to the poor blood circulation in bone tissue, large antibiotic doses are needed which
Narges Abotalebi   +2 more
doaj   +1 more source

Hemocompatibility poly (lactic acid) nanostructures: A bird’s eye view [PDF]

open access: yesNanomedicine Journal, 2020
The usage of clinical devices in the cardiovascular treatment, hemodialyze system and other biomedical applications has improved recently. Direct contacts of biomaterials like poly(lactic acid) biopolymer with blood result in the activating of platelets,
Farnaz-sadat Fattahi, Tahereh Zamani
doaj   +1 more source

PLA/WOOD BIOCOMPOSITES: IMPROVING COMPOSITE STRENGTH BY CHEMICAL TREATMENT OF THE FIBERS [PDF]

open access: yes, 2013
A resol type phenolic resin was prepared for the impregnation of wood particles used for the reinforcement of PLA. A preliminary study showed that the resin penetrates wood with rates depending on the concentration of the solution and on temperature ...
Acha   +44 more
core   +1 more source

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