Institute of Fundamental Technological Research
Polish Academy of Sciences

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Qiusheng Wang

Donghua University (CN)

Recent publications
1.  Liu Y., Wang Q., Liu X., Nakielski P., Pierini F., Li X., Yu J., Ding B., Highly adhesive, stretchable and breathable gelatin methacryloyl-based nanofibrous hydrogels for wound dressings, ACS Applied Bio Materials, ISSN: 2576-6422, DOI: 10.1021/acsabm.1c01087, Vol.5, No.3, pp.1047-1056, 2022

Abstract:
Adhesive and stretchable nanofibrous hydrogels have attracted extensive attraction in wound dressings, especially for joint wound treatment. However, adhesive hydrogels tend to display poor stretchable behavior. It is still a significant challenge to integrate excellent adhesiveness and stretchability in a nanofibrous hydrogel. Herein, a highly adhesive, stretchable, and breathable nanofibrous hydrogel was developed via an in situ hybrid cross-linking strategy of electrospun nanofibers comprising dopamine (DA) and gelatin methacryloyl (GelMA). Benefiting from the balance of cohesion and adhesion based on photocross-linking of methacryloyl (MA) groups in GelMA and the chemical/physical reaction between GelMA and DA, the nanofibrous hydrogels exhibited tunable adhesive and mechanical properties through varying MA substitution degrees of GelMA. The optimized GelMA60-DA exhibited 2.0 times larger tensile strength (2.4 MPa) with an elongation of about 200%, 2.3 times greater adhesive strength (9.1 kPa) on porcine skin, and 3.1 times higher water vapor transmission rate (10.9 kg m–2 d–1) compared with gelatin nanofibrous hydrogels. In parallel, the GelMA60-DA nanofibrous hydrogels could facilitate cell growth and accelerate wound healing. This work presented a type of breathable nanofibrous hydrogels with excellent adhesive and stretchable capacities, showing great promise as wound dressings.

Keywords:
nanofibrous hydrogels, hybrid cross-linking, adhesivity, stretchability, breathable capability

Affiliations:
Liu Y. - Forschugszentrum Jülich, Institute of Complex Systems (DE)
Wang Q. - Donghua University (CN)
Liu X. - Imperial College London (GB)
Nakielski P. - IPPT PAN
Pierini F. - IPPT PAN
Li X. - Donghua University (CN)
Yu J. - Donghua University (CN)
Ding B. - Donghua University (CN)
2.  Rinoldi C., Zargarian S.S., Nakielski P., Li X., Liguori A., Petronella F., Presutti D., Wang Q., Costantini M., De Sio L., Gualandi C., Ding B., Pierini F., Nanotechnology-assisted RNA delivery: from nucleic acid therapeutics to COVID-19 vaccines, Small Methods, ISSN: 2366-9608, DOI: 10.1002/smtd.202100402, Vol.5, No.9, pp.2100402-1-49, 2021

Abstract:
In recent years, the main quest of science has been the pioneering of the groundbreaking biomedical strategies needed for achieving a personalized medicine. Ribonucleic acids (RNAs) are outstanding bioactive macromolecules identified as pivotal actors in regulating a wide range of biochemical pathways. The ability to intimately control the cell fate and tissue activities makes RNA-based drugs the most fascinating family of bioactive agents. However, achieving a widespread application of RNA therapeutics in humans is still a challenging feat, due to both the instability of naked RNA and the presence of biological barriers aimed at hindering the entrance of RNA into cells. Recently, material scientists’ enormous efforts have led to the development of various classes of nanostructured carriers customized to overcome these limitations. This work systematically reviews the current advances in developing the next generation of drugs based on nanotechnology-assisted RNA delivery. The features of the most used RNA molecules are presented, together with the development strategies and properties of nanostructured vehicles. Also provided is an in-depth overview of various therapeutic applications of the presented systems, including coronavirus disease vaccines and the newest trends in the field. Lastly, emerging challenges and future perspectives for nanotechnology-mediated RNA therapies are discussed.

Affiliations:
Rinoldi C. - IPPT PAN
Zargarian S.S. - IPPT PAN
Nakielski P. - IPPT PAN
Li X. - Donghua University (CN)
Liguori A. - University of Bologna (IT)
Petronella F. - other affiliation
Presutti D. - Institute of Physical Chemistry, Polish Academy of Sciences (PL)
Wang Q. - Donghua University (CN)
Costantini M. - Sapienza University of Rome (IT)
De Sio L. - Sapienza University of Rome (IT)
Gualandi C. - University of Bologna (IT)
Ding B. - Donghua University (CN)
Pierini F. - IPPT PAN

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