Issue 21, 2023

In vivo biocompatibility of ZIF-8 for slow release via intranasal administration

Abstract

Zeolitic imidazolate framework-8 (ZIF-8) is becoming popular in research for its potential in antigen protection and for providing a thermally stable, slow-release platform. While papers applying this material for immunological applications are aplenty in the literature, studies that explore the biosafety of ZIF-8 in mammals—especially when administered intranasally—are not well represented. We checked the body clearance of uncoated and ZIF-8-coated liposomes and observed that the release slowed as ZIF-8 is easily degraded by mucosal fluid in the nasal cavity. We delivered varying doses of ZIF-8, checked its short- and long-term effects on diagnostic proteins found in blood serum, and found no noticeable differences from the saline control group. We also studied their lung diffusing capacity and tissue morphology; neither showed significant changes in morphology or function.

Graphical abstract: In vivo biocompatibility of ZIF-8 for slow release via intranasal administration

Supplementary files

Article information

Article type
Edge Article
Submitted
28 jan 2023
Accepted
28 apr 2023
First published
10 mei 2023
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2023,14, 5774-5782

In vivo biocompatibility of ZIF-8 for slow release via intranasal administration

S. Kumari, T. S. Howlett, R. N. Ehrman, S. Koirala, O. Trashi, I. Trashi, Y. H. Wijesundara and J. J. Gassensmith, Chem. Sci., 2023, 14, 5774 DOI: 10.1039/D3SC00500C

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