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

. 2021 Feb 8;11(2):430. doi: 10.3390/nano11020430

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

© 2021 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 (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Nanoparticles based on NAA. (A) (A-1–A-4) Schematic of the multi-step formation process of nanoporous anodic spheres and (A-5) optical microscope image of hollow spheres made of porous alumina obtained by removal of aluminum residues. Reprinted (adapted) with permission from [173]. Copyright 2018 The Royal Society of Chemistry. (B) Microscope images of HepG2 cells incubated with intrinsically photoluminescent nanoporous alumina particles obtained through grinding of NAA substrate. Reprinted (adapted) with permission from [166]. Copyright 2015 American Chemical Society.