Data underlying the publication: Microfluidic system for efficient molecular delivery to artificial cell membranes

DOI:10.4121/6d8a0dce-4e1d-4bd2-8afd-8574a5a83650.v1
The DOI displayed above is for this specific version of this dataset, which is currently the latest. Newer versions may be published in the future. For a link that will always point to the latest version, please use
DOI: 10.4121/6d8a0dce-4e1d-4bd2-8afd-8574a5a83650
Datacite citation style:
Yahyazadeh Shourabi, Arash; Iacona, Martina; Aubin-Tam, Marie-Eve (2025): Data underlying the publication: Microfluidic system for efficient molecular delivery to artificial cell membranes. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/6d8a0dce-4e1d-4bd2-8afd-8574a5a83650.v1
Other citation styles (APA, Harvard, MLA, Vancouver, Chicago, IEEE) available at Datacite

Dataset

The cell membrane represents a crucial interface to consider in biomedical research, as a significant proportion of drugs interacts with this barrier. While understanding membrane-drug interactions is important, existing in vitro platforms for drug screening predominantly focus on interactions with whole cells or tissues. This preference is partly due to the instability of membrane-based systems and the technical challenges associated with buffer replacement around lipid membranes formed on microfluidic chips. Here, we introduce a novel microfluidic design capable of forming stable freestanding lipid bilayers with efficient replacement of the media in their local environment for molecular delivery to the membrane. With the use of bubble traps and resistance channels, we achieved sufficient hydrodynamic control to maintain membrane stability during the membrane formation and the molecular delivery phases. As a proof of concept, we successfully formed 1-palmitoyl-2-oleoyl-glycero-3-phosphocholine (POPC) bilayers on the chip and delivered the antibiotic azithromycin at low (5 μM) and high (250 μM) doses. Using optical tweezers, we characterized how azithromycin influenced the membrane elastic properties, including tension and bending rigidity. This microfluidic device is a versatile tool that can deliver various buffers, molecules or nano-/microparticles to freestanding membranes, and study the resulting impact on the membranes’ properties.



History

  • 2025-01-29 first online
  • 2025-03-05 published, posted

Publisher

4TU.ResearchData

Format

spreadsheet/xslx, comsol/mph

Organizations

Kavli institute of Nanoscience, Department of Bionanoscience, Delft University of Technology

DATA

Files (2)