Imperial College London

Professor Molly Stevens

Faculty of EngineeringDepartment of Materials

Professor of Biomedical Materials and Regenerative Medicine



+44 (0)20 7594 6804m.stevens




208Royal School of MinesSouth Kensington Campus






BibTex format

author = {Armstrong, J and Maynard, S and Pence, I and Franklin, AC and Drinkwater, BW and Stevens, M},
doi = {10.1039/C8LC01108G},
journal = {Lab on a Chip},
pages = {562--573},
title = {Spatiotemporal quantification of acoustic cell patterning using Voronoi Tessellation},
url = {},
volume = {19},
year = {2019}

RIS format (EndNote, RefMan)

AB - Acoustic patterning using ultrasound standing waves has recently emerged as a potent biotechnology enabling the remote generation of ordered cell systems. This capability has opened up exciting opportunities, for example, in guiding the development of organoid cultures or the organization of complex tissues. The success of these studies is often contingent on the formation of tightly-packed and uniform cell arrays; however, a number of factors can act to disrupt or prevent acoustic patterning. Yet, to the best of our knowledge, there has been no comprehensive assessment of the quality of acoustically-patterned cell populations. In this report we use a mathematical approach, known as Voronoï tessellation, to generate a series of metrics that can be used to measure the effect of cell concentration, pressure amplitude, ultrasound frequency and biomaterial viscosity upon the quality of acoustically-patterned cell systems. Moreover, we extend this approach towards the characterization of spatiotemporal processes, namely, the acoustic patterning of cell suspensions and the migration of patterned, adherent cell clusters. This strategy is simple, unbiased and highly informative, and we anticipate that the methods described here will provide a systematic framework for all stages of acoustic patterning, including the robust quality control of devices, statistical comparison of patterning conditions, the quantitative exploration of parameter limits and the ability to track patterned tissue formation over time.
AU - Armstrong,J
AU - Maynard,S
AU - Pence,I
AU - Franklin,AC
AU - Drinkwater,BW
AU - Stevens,M
DO - 10.1039/C8LC01108G
EP - 573
PY - 2019///
SN - 1473-0189
SP - 562
TI - Spatiotemporal quantification of acoustic cell patterning using Voronoi Tessellation
T2 - Lab on a Chip
UR -
UR -
VL - 19
ER -