Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Dec 8;15(24):8768. doi: 10.3390/ma15248768

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

FT-IR spectra of the (a)FA-CaCO₃, (b) Aminated FA-CaCO₃, (c) Carboxylated FA-CaCO₃, (d) FA-CaCO₃/PEI, (e) FA-CaCO₃/PEI@DOX, (f) FA-CaCO₃/PEI@DOX/HA, and (g) CaCO₃ microspheres after drug release.