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Title: Green processing of nanofibers for regenerative medicine
Authors: Krishnan, R.
Sundarrajan, S. 
Ramakrishna, S. 
Keywords: aqueous electrospinning
polymer nanofibers
regenerative medicine
Issue Date: Oct-2013
Citation: Krishnan, R., Sundarrajan, S., Ramakrishna, S. (2013-10). Green processing of nanofibers for regenerative medicine. Macromolecular Materials and Engineering 298 (10) : 1034-1058. ScholarBank@NUS Repository.
Abstract: Electrospinning of polymer scaffolds is mostly carried out using organic solvents, but the drawbacks are: solvent costs, environmental hazards, and presence of traces of solvent impurities. The use of water-soluble polymers (WSPs), water or aqueous solutions as an electrospinning medium (green processing) is a very attractive method to avoid such issues. However, a few WSP such as polyelectrolytes are not spinnable as such, but have been electrospun by addition of WSPs, additives, and salts. This paper covers solution properties, polyelectrolyte nanofibrous scaffolds (polysaccharides, biopolymers, etc.), fabrication through green processing, and their regenerative medical applications such as wound dressing, drug delivery, and tissue engineering. This is the first review to cover the above issues, the drawbacks of current methods, and future challenges. The fabrication of polyelectrolyte nanofiber scaffolds from aqueous polymer solution via a green electrospinning process is described. Generation of different architectures under various spinning conditions, application of polysaccharides and biopolymers scaffolds (for skin, cartilage, heart, and bone applications), drawbacks of the current methods, and future challenges are reviewed. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Macromolecular Materials and Engineering
ISSN: 14387492
DOI: 10.1002/mame.201200323
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