Correction for “Microscale technologies for tissue engineering and biology,” by Ali Khademhosseini, Robert Langer, Jeffrey Borenstein, and Joseph P. Vacanti, which published February 13, 2006; 10.1073/pnas.0507681102 (Proc. Natl. Acad. Sci. U.S.A. 103, 2480–2487).
The editors note that a duplication in Fig. 4B was mistakenly introduced during the journal production process. The microwells in the first two columns of the second row were duplicated in the first two columns of the first row of the figure when the panel label was adjusted and repositioned by journal staff to conform with the journal’s style guidelines. PNAS regrets the error.
Fig. 4.
Microscale tissue engineering using template-based cell assembly. (A) A schematic diagram of the template-based assembly method. PEG microwells were fabricated so that cells could dock within the low-shear-stress regions generated within the microstructures. Once cells had immobilized within the microwells, other cells were washed away, and the cells within the microwells formed aggregates of controlled properties. (B) A light microscope image of 100-μm PEG wells that were seeded with ES cells and washed. (C) A scanning electron micrograph of cells within PEG microwells (A.K., J. Yeh, G. Eng, J. Fukuda, O. Farokhzad, J. J. Cheng, J. Bumbling, and R.L., unpublished data).
The original figure as supplied by the authors and its legend appear below.