To our Readers; S. Braun, D. Avnir. Entrapment of Parathion Hydrolase from Pseudomonas spp. in Sol-Gel Glass; C. Dosoretz, et al. Immobilization of Urease on Composite Fibre by Using a Gel Formation of Cellulose Acetate and Titanium Iso-Propoxide; H. Hatayama, et al. Biogels of Cytochrome c: Cytochrome c Peroxidase Complex Studied by Electron Paramagnetic Resonance Spectroscopy; C.T. Lin, et al. Bioactive Ca10(PO4)6(OH)2-TiO2 Composite Coating Prepared by Sol-Gel Process; P. Li, et al. Characterization of Hydrophobic Sol-Gel Materials Containing Entrapped Lipases; M.T. Reetz, et al. Immunoassays in Sol-Gel Matrices; J. Livage, et al. Iodide Fluorescence Quenching of Sol-Gel Immobilized BSA; C.L. Wambolt, S.S. Saavedra. Mechanisms of Hydroxyapatite Formation on Porous Gel-Silica Substrates; M.M. Pereira, L.L. Hench. In vitro Protein Interactions with a Bioactive Gel-Glass; K.D. Lobel, L.L. Hench. Atrazine Degradation by Pseudomonas Strain ADP Entrapped in Sol-Gel Glass; M. Rietti-Shati, et al. Biological Activity of Functionalized SiO2 Thin Films Prepared by Sol-Gel Method; R. Collino, et al. Immobilization of Plant Cell in Hybrid Sol-Gel Materials; R. Campostrini, et al. Phycobiliproteins Encapsulated in Sol-Gel Glass; Zhongping Chen, et al. Encapsulation of the Ferritin Protein in Sol-Gel Derived Silica Glasses; E.H. Lan, et al. Enzymatic Activity of Oxalate Oxidase and Kinetic Measurements by Optical Methods in Transparent Sol-Gel Monoliths; S.A. Yamanaka, et al. Sol-Gel Derived Ceramic-Carbon Enzyme Electrodes: Glucose-Oxidase as a Test Case; S. Sampath, et al. Use of Sol-Gel Entrapment Techniques for the Resolution of Itaconic Acid Biosynthetic Pathway in Aspergillus terreus; E. Bresser, S. Braun. Sol-Gel Entrapment of Monoclonal Anti-Atrazine Antibodies; A. Turniansky, et al.