Bioencapsulation via sol-gel process in silica-based materials : method, materials, bioapplications, and characterization techniques -- Parameters influencing the protein conformation in nanoporous silica-based sol-gel glasses -- Enhancing the protein folding by introducing and associating hydrophobic and steric effects in modified silica-based porous glasses -- Emerging techniques for a better understanding of protein interactions and conformations in nanoporous sol-gel glasses