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Cryostructurization of polymeric systems for developing macroporous cryogel as a foundational framework in bioengineering applications

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Abstract

Among various fabrication techniques to produce a porous scaffold, thermally-induced phase separation at controlled cryogenic condition leads to the formation of a porous polymeric cryostructure alias cryogel or cryomatrix. Cryostructurization is one of the simple and versatile methods of synthesizing a highly porous and interconnected architecture. The process of cryostructurization is present in comparable fabrication approach of fabricating advanced porous biomaterials with precise control over multiple compositions of precursor units, spatial distributions for accomplishing effective recapitulation of mechanical properties and architectural accuracy at micron-scale with bioactive functionality. The cryogenically-structured polymeric scaffolds are of noteworthy fundamental and applied interest in multi-disciplinary areas of science and showed promising matrices in various biotechnological and biomedical areas. The large interconnected pores in cryogels open up a range of applications like the three-dimensional substrate for cell growth, bioreactor for continuous production of scarce molecules, bio-processing and protein purification, an adsorbent for environmental remediation, and biosensor fabrication. Over the past two decades, significant attention to these materials with rigorous expansion in their new designs, and remarkable growth in the number of the publications and patents on cryostructured porous materials has been noticed. This article is covering the progress in cryostructurization technology in the last few decades with principles underlying the mechanism of cryogelation, process optimization, and the recent trend in cryogel for biomedical and bioengineering applications.

Graphic abstract

The genesis of a highly porous interconnected architecture by the process of thermally-induced phase separation under cryo-temperature which is commonly known as cryostructurization of polymeric systems to produce porous scaffolds can be synthesized using a variety of polymer precursors for multidisciplinary applications in the fields of biomedicine, environment and bioengineering.

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Acknowledgement

Authors would like to acknowledge the Department of Atomic Energy, Government of India, for financial assistance.

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  1. Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, 400 085, Maharashtra, India

    Anuj Tripathi & Jose Savio Melo

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  1. Anuj Tripathi
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Correspondence to Anuj Tripathi.

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Tripathi, A., Melo, J.S. Cryostructurization of polymeric systems for developing macroporous cryogel as a foundational framework in bioengineering applications. J Chem Sci 131, 92 (2019). https://doi.org/10.1007/s12039-019-1670-1

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