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Bioresource and Agricultural Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2014

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Articles 151 - 152 of 152

Full-Text Articles in Bioresource and Agricultural Engineering

Water-Stable Three-Dimensional Ultrafine Fibrous Scaffolds From Keratin For Cartilage Tissue Engineering, Helan Xu, Shaobo Cai, Lan Xu, Yiqi Yang Jan 2014

Water-Stable Three-Dimensional Ultrafine Fibrous Scaffolds From Keratin For Cartilage Tissue Engineering, Helan Xu, Shaobo Cai, Lan Xu, Yiqi Yang

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Intrinsically water-stable scaffolds composed of ultrafine keratin fibers oriented randomly and evenly in three dimensions were electrospun for cartilage tissue engineering. Keratin has been recognized as a biomaterial that could substantially support the growth and development of multiple cell lines. Besides, three-dimensional (3D) ultrafine fibrous structures were preferred in tissue engineering due to their structural similarity to native extracellular matrices in soft tissues. Recently, we have developed a nontraditional approach to developing 3D fibrous scaffolds from alcohol-soluble corn protein, zein, and verified their structural advantages in tissue engineering. However, keratin with highly cross-linked molecular structures could not be readily dissolved …


Intrinsically Water-Stable Keratin Nanoparticles And Their In Vivo Biodistribution For Targeted Delivery, Helan Xu, Zhen Shi, Narendra Reddy, Yiqi Yang Jan 2014

Intrinsically Water-Stable Keratin Nanoparticles And Their In Vivo Biodistribution For Targeted Delivery, Helan Xu, Zhen Shi, Narendra Reddy, Yiqi Yang

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Highly water-stable nanoparticles of around 70 nm and capable of distributing with high uptake in certain organs of mice were developed from feather keratin. Nanoparticles could provide novel veterinary diagnostics and therapeutics to boost efficiency in identification and treatment of livestock diseases to improve protein supply and ensure safety and quality of food. Nanoparticles could penetrate easily into cells and small capillaries, surpass detection of the immune system, and reach targeted organs because of their nanoscale sizes. Proteins with positive and negative charges and hydrophobic domains enable loading of various types of drugs and, hence, are advantageous over synthetic polymers …