Transforming Nanofibers into Woven Nanotextiles for Vascular Application
| Autor: | Shantikumar V. Nair, John Joseph, Praveen Kerala Varma, Aleena Mary Cherian, Rajesh Jose, Deepthy Menon, Sivanarayanan Balakrishnan, Balasubramoniam Kavumkal Rajagopalan, Vijayakumar Maniyal, Aarya G. Krishnan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Fabrication Tissue Engineering Tissue Scaffolds Textiles Nanofibers Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Robotic systems Superhydrophilicity Biological property Nanofiber General Materials Science Adsorption 0210 nano-technology Porosity Protein adsorption |
| Zdroj: | ACS applied materialsinterfaces. 10(23) |
| ISSN: | 1944-8252 |
| Popis: | This study investigates the unique properties, fabrication technique, and vascular applications of woven nanotextiles made from low-strength nanoyarns, which are bundles of thousands of nanofibers. An innovative robotic system was developed to meticulously interweave nanoyarns in longitudinal and transverse directions, resulting in a flexible, but strong woven product. This is the only technique for producing seamless nanotextiles in tubular form from nanofibers. The porosity and the mechanical properties of nanotextiles could be substantially tuned by altering the number of nanoyarns per unit area. Investigations of the physical and biological properties of the woven nanotextile revealed remarkable and fundamental differences from its nonwoven nanofibrous form and conventional textiles. This enhancement in the material property was attributed to the multitude of hierarchically arranged nanofibers in the woven nanotextiles. This patterned woven nanotextile architecture leads to a superhydrophilic behavior in an otherwise hydrophobic material, which in turn contributed to enhanced protein adsorption and consequent cell attachment and spreading. Short-term in vivo testing was performed, which proved that the nanotextile conduit was robust, suturable, kink proof, and nonthrombogenic and could act as an efficient embolizer when deployed into an artery. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|