Label-free drug screening assay multiplexed with an orthogonal time-resolved fluorescence labeled assay

Kiss, László; Cselenyák, Attila; Visegrády, András

doi:10.1016/j.ab.2018.11.012

Cited by 1 publication

(1 citation statement)

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“…In the latter case, commercial systems based on grating coupler technologies such as EnSpire® Multimode Plate Reader from PerkinElmer or Epic® are used quite frequently. In this specific case, the signal changes are measured as changes of the refractive index within the range of the evanescent field—a process also called as dynamic mass redistribution—caused by receptor activation in Chinese hamster ovary cells [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Parallelized label-free monitoring of cell adhesion on extracellular matrix proteins measured by single colour reflectometry

et al. 2021

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The understanding of the initial cell adhesion to biomaterials is crucial for the survival of implants. The manifold possibilities to tailor an implant surface and the diverse requirements for different implant applications necessitate a timesaving and highly parallelized analytical methodology. Due to its intrinsic advantages (label-free, time-resolved, robust against temperature fluctuations, and particularly the multiplexing possibilities), single colour reflectometry (SCORE) is used for the first time to investigate cell adhesion to different extracellular matrix protein–coated surfaces. The excellent correlation between the novel SCORE technology and well-established reference methods proves that the results obtained by using this direct optical method are able to reflect the cell binding processes at the transducer surface. Additionally, the high time resolution of SCORE revealed the differences in the adhesion behaviour of the cells on the different extracellular matrix protein–coated glass slides during the initial adsorption phase and during the spreading of the cells on the surfaces. Therefore, we conclude that SCORE is a perfectly suited methodology for studying the entire cell adsorption process, including morphological changes, and shows great potential for other cell-based sensing applications. Graphical abstract

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Section: Introductionmentioning

confidence: 99%