Volume 18, Issue 2 2104971
Research Article

Laser-Assisted Fabrication of Injectable Nanofibrous Cell Carriers

Paweł Nakielski

Corresponding Author

Paweł Nakielski

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

E-mail: [email protected], [email protected]

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Chiara Rinoldi

Chiara Rinoldi

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Michał Pruchniewski

Michał Pruchniewski

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, 02-787 Poland

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Sylwia Pawłowska

Sylwia Pawłowska

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Małgorzata Gazińska

Małgorzata Gazińska

Department of Engineering and Technology of Polymers, Wrocław University of Science and Technology, Wrocław, 50-370 Poland

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Barbara Strojny

Barbara Strojny

Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, 02-787 Poland

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Daniel Rybak

Daniel Rybak

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Katarzyna Jezierska-Woźniak

Katarzyna Jezierska-Woźniak

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Olga Urbanek

Olga Urbanek

Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Piotr Denis

Piotr Denis

Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Emilia Sinderewicz

Emilia Sinderewicz

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Wioleta Czelejewska

Wioleta Czelejewska

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Joanna Staszkiewicz-Chodor

Joanna Staszkiewicz-Chodor

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Marta Grodzik

Marta Grodzik

Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, 02-787 Poland

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Yasamin Ziai

Yasamin Ziai

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

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Monika Barczewska

Monika Barczewska

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Wojciech Maksymowicz

Wojciech Maksymowicz

Laboratory for Regenerative Medicine, Department of Neurosurgery, School of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, 10-082 Poland

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Filippo Pierini

Corresponding Author

Filippo Pierini

Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 02-106 Poland

E-mail: [email protected], [email protected]

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First published: 21 November 2021
Citations: 19

Abstract

The use of injectable biomaterials for cell delivery is a rapidly expanding field which may revolutionize the medical treatments by making them less invasive. However, creating desirable cell carriers poses significant challenges to the clinical implementation of cell-based therapeutics. At the same time, no method has been developed to produce injectable microscaffolds (MSs) from electrospun materials. Here the fabrication of injectable electrospun nanofibers is reported on, which retain their fibrous structure to mimic the extracellular matrix. The laser-assisted micro-scaffold fabrication has produced tens of thousands of MSs in a short time. An efficient attachment of cells to the surface and their proliferation is observed, creating cell-populated MSs. The cytocompatibility assays proved their biocompatibility, safety, and potential as cell carriers. Ex vivo results with the use of bone and cartilage tissues proved that NaOH hydrolyzed and chitosan functionalized MSs are compatible with living tissues and readily populated with cells. Injectability studies of MSs showed a high injectability rate, while at the same time, the force needed to eject the load is no higher than 25 N. In the future, the produced MSs may be studied more in-depth as cell carriers in minimally invasive cell therapies and 3D bioprinting applications.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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