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Conference paperAmin HD, Brady MA, St-Pierre J-P, et al., 2013, , World Congress of the Osteoarthritis-Research-Society-International (OARSI), Publisher: ELSEVIER SCI LTD, Pages: S118-S118, ISSN: 1063-4584
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- Citations: 1
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Journal articleFrancis AW, Kagemann L, Wollstein G, et al., 2012, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 53, Pages: 5198-5207, ISSN: 0146-0404
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- Citations: 45
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Journal articleBoussommier-Calleja A, Bertrand J, Woodward DF, et al., 2012, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 53, Pages: 5838-5845, ISSN: 0146-0404
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- Citations: 71
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Journal articleWarboys CM, Overby DR, Weinberg PD, 2012, , CELLULAR AND MOLECULAR BIOENGINEERING, Vol: 5, Pages: 184-193, ISSN: 1865-5025
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- Citations: 7
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Journal articleSherwood JM, Dusting J, Kaliviotis E, et al., 2012, , Biomicrofluidics, Vol: 6, ISSN: 1932-1058
Red blood cell (RBC) aggregation is a multifaceted phenomenon, and whether it is generally beneficial or deleterious remains unclear. In order to better understand its effect on microvascular blood flow, the phenomenon must be studied in complex geometries, as it is strongly dependent on time, flow, and geometry. The cell-depleted layer (CDL) which forms at the walls of microvessels has been observed to be enhanced by aggregation; however, details of the characteristics of the CDL in complex regions, such as bifurcations, require further investigation. In the present study, a microchannel with a T-junction was used to analyze the influence of aggregation on the flow field and the CDL. Micro-PIV using RBCs as tracers provided high resolution cell velocity data. CDL characteristics were measured from the same data using a newly developed technique based on motion detection. Skewed and sharpened velocity profiles in the daughter branches were observed, contrary to the behavior of a continuous Newtonian fluid. RBC aggregation was observed to increase the skewness, but decrease the sharpening, of the velocity profiles in the daughter branches. The CDL width was found to be significantly greater, with a wider distribution, in the presence of aggregation and the mean width increased proportionally with the reciprocal of the fraction of flow entering the daughter branch. Aggregation also significantly increased the roughness of the interface between the CDL and the RBC core. The present results provide further insight into how RBC aggregation may affect the flow in complex geometries, which is of importance in both understanding its functions invivo, and utilizing it as a tool in microfluidic devices.
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Conference paperPedrigi RM, Gupta R, Braakman ST, et al., 2012,
PORE FORMATION IN SCHLEMM'S CANAL ENDOTHELIAL CELLS IS MECHANO-SENSITIVE AND IMPAIRED IN GLAUCOMA
, ASME Summer Bioengineering Conference (SBC), Publisher: AMER SOC MECHANICAL ENGINEERS, Pages: 1183-1184 -
Journal articleStamer WD, Lei Y, Boussommier-Calleja A, et al., 2011, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 52, Pages: 9438-9444, ISSN: 0146-0404
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- Citations: 144
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Journal articleLei Y, Rajabi S, Pedrigi RM, et al., 2011, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 52, Pages: 6329-6339, ISSN: 0146-0404
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- Citations: 25
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Journal articleLei Y, Overby DR, Boussommier-Calleja A, et al., 2011, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 52, Pages: 1865-1871, ISSN: 0146-0404
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- Citations: 94
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Journal articleVanderWyst SS, Perkumas KM, Read AT, et al., 2011,
Structural basement membrane components and corresponding integrins in Schlemm's canal endothelia
, MOLECULAR VISION, Vol: 17, Pages: 199-209, ISSN: 1090-0535- Cite
- Citations: 21
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Journal articlePedrigi RM, Simon D, Reed A, et al., 2011, , EXPERIMENTAL EYE RESEARCH, Vol: 92, Pages: 57-66, ISSN: 0014-4835
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- Citations: 41
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Book chapterOverby DR, 2011,
The mechanobiology of aqueous humor transport across Schlemm’s canal endothelium.
, Mechanobiology Handbook, Editors: Nigatomi, Publisher: CRC Press, Taylor & Francis Group, LLC -
Journal articleLei Y, Overby DR, Read AT, et al., 2010, , INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol: 51, Pages: 5744-5750, ISSN: 0146-0404
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- Citations: 31
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Conference paperWarboys CM, Overby DR, Weinberg PD, 2010, , Publisher: ELSEVIER IRELAND LTD, Pages: E17-E17, ISSN: 0021-9150
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Journal articleMatthews BD, Thodeti CK, Tytell JD, et al., 2010, , INTEGRATIVE BIOLOGY, Vol: 2, Pages: 435-442, ISSN: 1757-9694
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- Citations: 214
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Dr Darryl Overby
Principal Investigator and Senior Lecturer
Deptartment of Bioengineering.
51³Ô¹ÏÍø
d.overby@imperial.ac.uk
+44 (0)20 7594 6376