The study of FeO@SiO-NH nano-magnetic composite modified by glutaraldehyde to immobilized penicillin G acylase.

Preparation of biocatalyst dependent on immobilized penicillin G acylase (PGA) was of substantial importance for proteomic research, organic synthesis, and industrial applications. Herein, we developed an easy method for nano-magnetic composite to immobilize PGA. FeO nano-magnetic particles were co-precipitated with Fe and Fe in an ammonia solution (NH) and treated with silicon dioxide (SiO), which was developed using the sol-gel process.

Design, synthesis, and study of Pd(II) ion-imprinted functionalized polymer.

Selective metal ions' extraction and recovery has various applications in the analytical field. Metal ions need to be extracted, detected, and quantified. For that purpose, ion-imprinted polymers have earned a great deal of attention during the past two decades.

Fabrication and investigation of gold (III) ion-imprinted functionalized silica particles.

Au (III) ion-imprinted mesoporous silica particles (Au-Si-Py) was manufactured by the condensation reaction of (3-Aminopropyl)triethoxysilane (AT)and 2-pyridinecarboxaldehyde (Py). The obtained AT-Py Schiff base ligand was then coordinate with the template gold ions and the polymerizable gold-complex was allowed to gel in presence of tetraethoxysilane (TEOS) and then the coordinated gold ions were leached out of the obtained silica matrix using acidified thiourea solution. During the synthetic steps, the obtained materials were investigated utilizing advanced instrumental and spectral methods.