Microwave dielectric and reflection characterization on silver grunter (Pomadasys hasta) and tilapia (Oreochromisniloticus) fish scale for potential use as scaffold

Hydroxyapatite from fish scale was studied and reported of its potential in bone scaffold or regenerative material. Fish scale as a source of collagen and valuable matrix proteins in the pharmaceutical and cosmetic industries is overwhelmingly studied among researchers. In this work, dielectric and reflection measurement was conducted on fish scale from Silver Grunter (Pomadasys hasta) and Tilapia (Oreochromisniloticus) fish ranging from 200 MHz to 20 GHz using Agilent E8362B PNA Network Analyzer in conjunction with an Agilent 85070E High Temperature Probe. The fish scale was prepared as sample under test prior to measurements. Dielectric constant, and loss factor increase with frequency. Meanwhile, the measured magnitude and phase of reflection coefficient that acquired through reflection measurement decrease when frequency increases. On the other hand, both fish scales were characterized as crystalline structure via X-ray diffraction analysis. It is important in analyzing dielectric mechanism occurs in fish scale.