Search results for "SEP"

Sermón, que en la solemne fiesta, que consagró la nobleza de la ... villa de Alcoi al ... hallazgo del SS. Sacramento ..., en la celebridad de la s…

1769

Sig. []2, A-B4, C5 Reclams. - Alguna capital grav. Notes a peu de pàg.

POROUS SCAFFOLDS BASED ON PLLA/FUNCTIONALISED POLYMERS BLENDS PRODUCED BY THERMALLY INDUCED PHASE SEPARATION

2014

Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review

2021

The fabrication of 3D scaffolds is under wide investigation in tissue engineering (TE) because of its incessant development of new advanced technologies and the improvement of traditional processes. Currently, scientific and clinical research focuses on scaffold characterization to restore the function of missing or damaged tissues. A key for suitable scaffold production is the guarantee of an interconnected porous structure that allows the cells to grow as in native tissue. The fabrication techniques should meet the appropriate requirements, including feasible reproducibility and time- and cost-effective assets. This is necessary for easy processability, which is associated with the large …

Synthesis, characterization and foaming of PHEA-PLLA, a new graft copolymer for biomedical engineering

2014

Abstract In this study a chemical grafting procedure was set up in order to link high molecular weight poly L-lactic acid (PLLA) chains to the hydrophilic α,β-poly(N-2-hydroxyethyl)-DL-aspartamide (PHEA) backbone. A graft copolymer named PHEA-g-PLLA (or simply PHEA–PLLA) was obtained bearing a degree of derivatization of 1.0 mol.% of PLLA as grafted chain. This new hybrid derivative offers both the opportune crystallinity necessary for the production of scaffolds trough a thermally induced phase separation (TIPS) technique and the proper chemical reactivity to perform further functionalizations with bio-effectors and drugs. PHEA–PLLA porous scaffolds for tissue engineering applications were…

Preparation and characterization of PLLA-HA scaffolds for bone tissue engineering

2013

In this work, the possibility to produce composite - Poly-L-lactic acid (PLLA) and Hydroxyapatite (HA) - porous scaffolds via Thermally Induced Phase Separation for bone tissue engineering applications was investigated. Several PLLA/HA ratios were tested (70/30, 50/50, 30/70 and 20/80 wt/wt) and the as-obtained scaffolds were characterized via Scanning Electron Microscopy (SEM), Wide Angle X-Ray Diffraction (WAXD) and compression test. The results showed that the presence of HA does not influence the phase separation process. Morphological analysis revealed an open structure with interconnected pores and HA embedded in the polymer matrix. This evidence was confirmed by WAXD analysis; where …

A COMPOSITE PLLA SCAFFOLD FOR REGENERATION OF COMPLEX TISSUES

2010

A composite biodegradable scaffold incorporating an integrated network of synthetic blood vessels was designed and prepared, in line with the requirements of a scaffold effectively supporting the regeneration of highly vascularized tissues. In other words, this composite scaffold should allow the regeneration of complex injured tissue (e.g. dermis) and, at the same time, favour the development of a vascular network on its inner, i.e. a 3D polymeric scaffolds embedding synthetic blood vessel-like structures for nutrient supply and metabolite removal. PLLA assures a high degree of biocompatibility and a low level of inflammation response upon implantation, while the embedded tubular vessel-li…

Re-Enchantment and Contemporary Demonology

2017

Implementasi Pembelajaran Fisika Berbasis Laboratorium Virtual terhadap Keterampilan Proses Sains dan Persepsi Mahasiswa

2018

Penelitian ini bertujuan untuk mengetahui penerapan pembelajaran fisika berbasis media laboratorium virtual , Keterampilan Proses Sains (KPS), dan persepsi mahasiswa pada mata kuliah fisika dasar. Metode penelitian menggunakan pre-eksperimental design dan teknik purposive sample digunakan untuk memilih sampel yaitu kelas pendidikan fisika dan pendidikan matematika Universitas Papua. Instrumen dalam penelitian ini yaitu lembar observasi dan penilaian KPS serta angket persepsi mahasiswa yang dinilai di akhir pembelajaran. Hasil penelitian menunjukkan persentase KPS yang diobservasi selama perkuliahan 86,4% ± SD 12,7 meliputi aspek keterampilan menggunakan alat, mengambil data, dan mengkomunik…

Giuseppe Ricca Salerno

2013

Scienza delle finanze

La statua della Augusta Regina by Giuseppe Valenti in Valletta

2022

The aim of this paper is for it to be a tribute to Queen Victoria through her monument in Valletta (1887-1891) by the sculptor Giuseppe Valenti from Palermo