Polymers of lactic and glycolic acid are attractive candidates to fabricate devides to transplant cells and engineer new tissues. These polymers are biocompatible, and exhibit a wide range of erosion times and mechanical properties. This manuscript describes the fabrication and characterization, in vitro and in vivo, of hollow, tubular devices from porous films of various polymers of this famil...

The formation of structures in poly(lactic acid) has been investigated with respect to producing areas of regular, superficial features with dimensions comparable to those of cells or biological macromolecules. Nanoembossing, a novel method of pattern replication in polymers, has been used for the production of features ranging from tens of micrometers, covering areas up to 1 cm(2), down to hun...

Development of eco-friendly and biodegradable package materials is an important goal modern science international industry. Poly(lactic)-co-glycolic acid (PLGA) suitable for this purpose. However, biocompatible may be contaminated with bacteria. This problem solved by the addition metal oxides nanoparticles (NPs) antibacterial properties. Although NPs often show cytotoxicity against plant mamma...

Fibrous-based composite polyester mats have gained importance in the biomedical area due to their morphological characteristics and mechanical performance. These materials can be modified by incorporating different inorganic micro- or nano-particles, thus leading promising potential applications as medical devices with antimicrobial and/or bioactive properties. In this regard, chapter reports a...

Abstract High temperature rubbing is a fast and low‐cost method that can align semi‐crystalline polymers such as poly(lactic acid) (PLA) by application of shear‐force via rotating cylinder covered with microfiber cloth on thin film maintained at high temperature. A multi technique approach uncovers the role thickness PLA structure. Both poly( l ‐lactic (PLLA) stereo‐complex (SC‐PLA) be readily ...

Continuous-state variable conductivity of nickel oxide/porous silicon nanocomposite thin films indicative of memristance is reported and a mathematical model for the observed behavior is proposed. The variable conductivity phenomena observed are shown to depend on the composition of the films. A generalized composite material conductivity model that explains the time-varying, field-dependent co...

The present review deals with the recent progress made in field of electrochemical detection serotonin by means sensors based on various nanomaterials incorporated sensitive element. Due to unique chemical and physical properties these nanomaterials, it was possible develop excellent analytical performances, useful practice. main used are carbon electrodes modified nanotubes materials, such as ...

The structure and properties of nanocomposites of poly(ethylene oxide), with Ag and Au nanoparticles, surface modified with a 1:1 (by volume) oleylamine/oleic acid mixture, were investigated via transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry (DSC), infrared spectroscopy, dynamic mechanical analysis, and static mechan...

We used a sol–gel spin coating technique to synthesize nanocomposite thin films based on zinc oxide (ZnO) loaded with silver nanoparticles (NPs). tested these ZnO/Ag NPs photocatalysts, thickness of about 100 nm, for the photodegradation indigo carmine dye solution. The study focused effects Ag ZnO matrix as well impact their concentration photocatalytic performance nanocomposite. also highligh...

In the past few years, an increasing number of in situ-forming systems have been reported in the literature for various biomedical applications, including drug delivery, cell encapsulation, and tissue repair. There are several possible mechanisms that lead to in situ gel formation: solvent exchange, UV-irradiation, ionic cross-linkage, pH change, and temperature modulation. The thermosensitive ...