AUTHOR=Di Stolfo Luigi , Lee Wang Sik , Vanhecke Dimitri , Balog Sandor , Taladriz-Blanco Patricia , Petri-Fink Alke , Rothen-Rutishauser Barbara TITLE=The impact of cell density variations on nanoparticle uptake across bioprinted A549 gradients JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1584635 DOI=10.3389/fbioe.2025.1584635 ISSN=2296-4185