Alkaline Phosphatase Immobilization on New Chitosan Membranes with Mg 2+ for Biomedical Applications

• Published in: Marine drugs Vol. 16; no. 8
• Main Authors: Tihan, Gratiela Teodora, Zgarian, Roxana Gabriela, Berteanu, Elena, Ionita, Daniela, Totea, Georgeta, Iordachel, Catalin, Tatia, Rodica, Prodana, Mariana, Demetrescu, Ioana
• Format: Journal Article
• Language: English
• Published: Switzerland 18.08.2018
• Subjects: Alkaline Phosphatase - chemistry; Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; Chitosan - chemistry; Escherichia coli - drug effects; Ions - chemistry; Magnesium - chemistry; Microscopy, Electron, Scanning - methods; Polymers - chemistry; Spectroscopy, Fourier Transform Infrared - methods; Staphylococcus aureus - drug effects; chitosan; cell viability; hemolytic index; alkaline phosphatase; metal ion
• ISSN: 1660-3397

In this paper, we present the fabrication and characterization of new chitosan-based membranes while using a new biotechnology for immobilizing alkaline phosphatase (ALP). This technology involved metal ions incorporation to develop new biopolymeric supports. The chemical structure and morphological characteristics of proposed membranes were evaluated by infrared spectroscopy (FT-IR) and the scanning electron microscopy technique (SEM). The inductively coupled plasma mass spectrometry (ICP-MS) evidenced the metal ion release in time. Moreover, the effect of Mg on the enzymatic activity and the antibacterial investigations while using Gram-negative and Gram-positive bacteria, hemolysis, and biocompatibility behavior were studied. Immobilizing ALP into the chitosan membranes composition followed by the incorporation of Mg led to polymeric supports with enhanced cellular viability when comparing to chitosan-based membranes without Mg . The results obtained evidenced promising performance in biomedical applications for the new biopolymeric supports that are based on chitosan, ALP, and metal ions.