Multidimensional assembly using layer-by-layer deposition for synchronized cardiac macro tissues

Yongjun Jang, Da Jung Jung, Seung Cheol Choi, Do Sun Lim, Jong Hoon Kim, Gi Seok Jeoung, Jongseong Kim, Yongdoo Park

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The fabrication of biomimetic structures for tissues and organs is emerging in the fields of biomedical engineering and precision medicine. While current progress in biomedical research provides a number of biofabrication methods, the construction of multi-dimensional cardiac tissue is highly challenging due to difficulties in the maturation and synchronization of cardiomyocytes (CMs) in conjunction with other types of cells, such as myofibroblasts and endothelial cells. Here, we show a simple fabrication methodology to construct multi-dimensional cardiac macro tissue (mCMT) by layer-by-layer (LBL) deposition of cells on micro patterned PDMS. mCMTs formed by LBL deposition of pluripotent stem cell (PSC)-derived cardiomyocytes and cardiac fibroblasts formed 3D patterned structures with synchronized beating characteristics. We also demonstrate that cardiac maturation factors such as the gene expression of MLC2v and cTNI and formation of sarcomeres in mCMTs were significantly enhanced by LBL deposition and growth factors during the maturation process. Fabrication of matured mCMTs with synchronized beating enables providing an efficient platform for evaluating the efficacy and toxicity of drug candidates. These results have important implications because mCMTs are applicable to diversein vitrostudies and drug screening methods that require tissue-like structures and functions in a physiological environment.

Original languageEnglish
Pages (from-to)18806-18815
Number of pages10
JournalRSC Advances
Issue number32
Publication statusPublished - 2020 May 18

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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