Institute of Fundamental Technological Research
Polish Academy of Sciences


Daniel Rybak, MSc

Department of Biosystems and Soft Matter (ZBiMM)
position: PhD Student
PhD student
telephone: (+48) 22 826 12 81 ext.: 422
room: 227

Recent publications
1.  Haghighat Bayan Mohammad A., Dias Yasmin J., Rinoldi C., Nakielski P., Rybak D., Truong Yen B., Yarin A., Pierini F., Near-infrared light activated core-shell electrospun nanofibers decorated with photoactive plasmonic nanoparticles for on-demand smart drug delivery applications, Journal of Polymer Science, ISSN: 2642-4169, DOI: 10.1002/pol.20220747, pp.1-13, 2023

Over the last few years, traditional drug delivery systems (DDSs) have been transformed into smart DDSs. Recent advancements in biomedical nanotech-nology resulted in introducing stimuli-responsiveness to drug vehicles. Nano-
platforms can enhance drug release efficacy while reducing the side effects of drugs by taking advantage of the responses to specific internal or external stim-uli. In this study, we developed an electrospun nanofibrous photo-responsive DDSs. The photo-responsivity of the platform enables on-demand elevated drug release. Furthermore, it can provide a sustained release profile and pre-vent burst release and high concentrations of drugs. A coaxial electrospinning setup paired with an electrospraying technique is used to fabricate core-shell PVA-PLGA nanofibers decorated with plasmonic nanoparticles. The fabricated
nanofibers have a hydrophilic PVA and Rhodamine-B (RhB) core, while the shell is hydrophobic PLGA decorated with gold nanorods (Au NRs). The presence of plasmonic nanoparticles enables the platform to twice the amount of drug release besides exhibiting a long-term release. Investigations into the photo-responsive release mechanism demonstrate the system's potential as a “smart” drug delivery platform.

electrospun core-shell nanofibers,NIR-light activation,on-demand drug release,plasmonic nanoparticles,stimuli-responsive nanomaterials

Haghighat Bayan Mohammad A. - IPPT PAN
Dias Yasmin J. - other affiliation
Rinoldi C. - IPPT PAN
Nakielski P. - IPPT PAN
Rybak D. - IPPT PAN
Truong Yen B. - other affiliation
Yarin A. - Technion-Israel Institute of Technology (IL)
Pierini F. - IPPT PAN
2.  Nakielski P., Rinoldi C., Pruchniewski M., Pawłowska S., Gazińska M., Strojny B., Rybak D., Jezierska-Woźniak K., Urbanek O., Denis P., Sinderewicz E., Czelejewska W., Staszkiewicz-Chodor J., Grodzik M., Ziai Y., Barczewska M., Maksymowicz W., Pierini F., Laser-assisted fabrication of injectable nanofibrous cell carriers, Small, ISSN: 1613-6810, DOI: 10.1002/smll.202104971, Vol.18, No.2, pp.2104971-1-18, 2022

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.

Nakielski P. - IPPT PAN
Rinoldi C. - IPPT PAN
Pruchniewski M. - other affiliation
Pawłowska S. - IPPT PAN
Gazińska M. - other affiliation
Strojny B. - other affiliation
Rybak D. - IPPT PAN
Jezierska-Woźniak K. - other affiliation
Urbanek O. - IPPT PAN
Denis P. - IPPT PAN
Sinderewicz E. - other affiliation
Czelejewska W. - other affiliation
Staszkiewicz-Chodor J. - other affiliation
Grodzik M. - other affiliation
Ziai Y. - IPPT PAN
Barczewska M. - University of Warmia and Mazury in Olsztyn (PL)
Maksymowicz W. - University of Warmia and Mazury in Olsztyn (PL)
Pierini F. - IPPT PAN

Conference abstracts
1.  Nakielski P., Rinoldi C., Pruchniewski M., Rybak D., Jezierska-Woźniak K., Gazińska M., Strojny B., Grodzik M., Maksymowicz W., Pierini F., Injectable nanofibrous microscaffolds, EHDAES, European Symposium on Electrohydrodynamic Atomization and Electrospinning, 2022-04-27/04-29, Napoli (IT), pp.1, 2022
2.  Nakielski P., Rinoldi C., Pruchniewski M., Rybak D., Jezierska-Woźniak K., Gazińska M., Strojny B., Grodzik M., Maksymowicz W., Pierini F., Injectable nanofibrous microscaffolds for cell and drug delivery, TERMIS-EU 2022, Tissue Engineering and Regenerative Medicine International Society European Chapter Conference 2022, 2022-06-28/07-01, Kraków (PL), pp.1, 2022
3.  Nakielski P., Rinoldi C., Pruchniewski M., Rybak D., Urbanek O., Jezierska- Woźniak K., Grodzik M., Maksymowicz W., Pierini F., Injectable microscaffolds for IVD regeneration, 2022 eCM20: Cartilage and Disc Repair and Regeneration, 2022-06-15/06-18, Davos (CH), pp.33-33, 2022

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