Spatially controlled multicellular differentiation of stem cells using triple factor-releasing metal–organic framework-coated nanoline arrays

Yeon-Woo Cho, Min-Ji Kang, Joon-Ha Park, Yun-Sik Eom and Tae-Hyung Kim ()
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Yeon-Woo Cho: Sungkyunkwan University (SKKU)
Min-Ji Kang: Sungkyunkwan University (SKKU)
Joon-Ha Park: Sungkyunkwan University (SKKU)
Yun-Sik Eom: Sungkyunkwan University (SKKU)
Tae-Hyung Kim: Sungkyunkwan University (SKKU)

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract Improved in vitro models are needed for regenerative therapy and drug screening. Here, we report on functionally aligned nanoparticle-trapped nanopattern arrays for spatially controlled, precise mesenchymal stem cell differentiation on a single substrate. The arrays comprise nanohole and nanoline arrays fabricated through interference lithography and selectively capture of UiO-67 metal–organic frameworks on nanoline arrays with a 99.8% efficiency using an optimised asymmetric spin-coating method. The UiO-67 metal–organic frameworks contain three osteogenic differentiation factors for sustained release over four weeks. The combination of differentiation factors and patterned array allows for generation of adipocytes, osteoblasts, and adipocyte–osteoblast mixtures on nanohole arrays, nanoline arrays, and at the nanohole–nanoline interface, respectively, with mature osteoblasts exhibiting higher marker expression and mineralisation. The sustained release patterned array holds potential for constructing advanced therapeutic and disease state in vitro cellular models.

Date: 2025
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DOI: 10.1038/s41467-025-56373-0

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