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Optimization and comparison of two different 3D culture methods to prepare cell aggregates as a bioink for organ printing

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BIOCELL 2012年第1期36卷 37-45页

作者： RANA IMANI shahriar hojjati emami HOSSEIN FAKHRZADEH NAFISEH BAHEIRAEI ALI M SHARIFI Department of Biomedical Engineering Amirkabir University of TechnologyTehranIran Endocrinology and Metabolism Research Institute Tehran University of Medical SciencesTehranIran Razi Institute for Drug research Department of PharmacologySchool of MedicineTehran University of Medical SciencesTehranIran Department of Tissue Engineering and Cell therapy School of advanced sciences in MedicineTehran University of Medical Sciences.TehranIran

The ultimate goal of tissue engineering is to design and fabricate functional human tissues that are similar to natural cells and are capable of *** of cell aggregates is one of the important steps in 3D tissue engineering technology,particularly in organ *** simple methods,hanging drop(HD)and conical tube(CT)were utilized to prepare cell *** size and viability of the aggregates obtained at different initial cell densities and pre-culture duration were *** proliferative ability of the cell aggregates and their ability to spread in culture plates were also *** both methods,the optimum average size of the aggregates was less than 500μ*** aggregates were smaller than HD aggregates.5,000 cells per drop HD aggregates showed a marked ability to attach and spread on the culture *** proliferative ability reduced when the initial cell density was *** these methods,we found that the HD method having better size controlling ability as well as enhanced ability to maintain higher rates of viability,spreading,and *** conclusion,smaller HD aggregates might be a suitable choice as building blocks for making bioink particles in bioprinting technique.

关键词： tissue engineering hanging drop conical tube bioprinting

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