Rapid homogeneous endothelialization of high aspect ratio microvascular networks

Verfasser / Beitragende:
[Nisarga Naik, Donny Hanjaya-Putra, Carolyn Haller, Mark Allen, Elliot Chaikof]
Ort, Verlag, Jahr:
2015
Enthalten in:
Biomedical Microdevices, 17/4(2015-08-01), 1-7
Format:
Artikel (online)
ID: 605479895
LEADER caa a22 4500
001 605479895
003 CHVBK
005 20210128100412.0
007 cr unu---uuuuu
008 210128e20150801xx s 000 0 eng
024 7 0 |a 10.1007/s10544-015-9990-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10544-015-9990-5 
245 0 0 |a Rapid homogeneous endothelialization of high aspect ratio microvascular networks  |h [Elektronische Daten]  |c [Nisarga Naik, Donny Hanjaya-Putra, Carolyn Haller, Mark Allen, Elliot Chaikof] 
520 3 |a Microvascularization of an engineered tissue construct is necessary to ensure the nourishment and viability of the hosted cells. Microvascular constructs can be created by seeding the luminal surfaces of microfluidic channel arrays with endothelial cells. However, in a conventional flow-based system, the uniformity of endothelialization of such an engineered microvascular network is constrained by mass transfer of the cells through high length-to-diameter (L/D) aspect ratio microchannels. Moreover, given the inherent limitations of the initial seeding process to generate a uniform cell coating, the large surface-area-to-volume ratio of microfluidic systems demands long culture periods for the formation of confluent cellular microconduits. In this report, we describe the design of polydimethylsiloxane (PDMS) and poly(glycerol sebacate) (PGS) microvascular constructs with reentrant microchannels that facilitates rapid, spatially homogeneous endothelial cell seeding of a high L/D (2cm/35μm; > 550:1) aspect ratio microchannels. MEMS technology was employed for the fabrication of a monolithic, elastomeric, reentrant microvascular construct. Isotropic etching and PDMS micromolding yielded a near-cylindrical microvascular channel array. A ‘stretch - seed - seal' operation was implemented for uniform incorporation of endothelial cells along the entire microvascular area of the construct yielding endothelialized microvascular networks in less than 24h. The feasibility of this endothelialization strategy and the uniformity of cellularization were established using confocal microscope imaging. 
540 |a Springer Science+Business Media New York, 2015 
690 7 |a Engineered microvascular construct  |2 nationallicence 
690 7 |a Endothelial cell seeding  |2 nationallicence 
690 7 |a MEMS  |2 nationallicence 
690 7 |a Micromolding  |2 nationallicence 
700 1 |a Naik  |D Nisarga  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
700 1 |a Hanjaya-Putra  |D Donny  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
700 1 |a Haller  |D Carolyn  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
700 1 |a Allen  |D Mark  |u School of Electrical and Computer Engineering, Georgia Institute of Technology, 30332, Atlanta, GA, USA  |4 aut 
700 1 |a Chaikof  |D Elliot  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
773 0 |t Biomedical Microdevices  |d Springer US; http://www.springer-ny.com  |g 17/4(2015-08-01), 1-7  |x 1387-2176  |q 17:4<1  |1 2015  |2 17  |o 10544 
856 4 0 |u https://doi.org/10.1007/s10544-015-9990-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10544-015-9990-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Naik  |D Nisarga  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hanjaya-Putra  |D Donny  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Haller  |D Carolyn  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Allen  |D Mark  |u School of Electrical and Computer Engineering, Georgia Institute of Technology, 30332, Atlanta, GA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chaikof  |D Elliot  |u Department of Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, 02115, Boston, MA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biomedical Microdevices  |d Springer US; http://www.springer-ny.com  |g 17/4(2015-08-01), 1-7  |x 1387-2176  |q 17:4<1  |1 2015  |2 17  |o 10544