Journal
BIOMATERIALS SCIENCE
Volume 3, Issue 4, Pages 581-585Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4bm00411f
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Funding
- FCT-Fundacao para a Ciencia e para a Tecnologia through the Ph.D. grants [SFRH/BD/73119/2010, SFRH/BD/69529/2010, SFRH/BD/71396/2010]
- FEDER through the program Operacional Factores de Competitividade - COMPETE
- FCT - the Fundacao para a Ciencia e a Tecnologia [PTDC/CTM-BIO/1814/2012]
- European Research Council [ERC-2012-ADG 20120216-321266]
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We propose a novel hanging spherical drop system for anchoring arrays of droplets of cell suspension based on the use of biomimetic superhydrophobic flat substrates, with controlled positional adhesion and minimum contact with a solid substrate. By facing down the platform, it was possible to generate independent spheroid bodies in a high throughput manner, in order to mimic in vivo tumour models on the lab-on-chip scale. To validate this system for drug screening purposes, the toxicity of the anti-cancer drug doxorubicin in cell spheroids was tested and compared to cells in 2D culture. The advantages presented by this platform, such as feasibility of the system and the ability to control the size uniformity of the spheroid, emphasize its potential to be used as a new low cost toolbox for high-throughput drug screening and in cell or tissue engineering.
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