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BIOMIMETIC MECHANICAL TENSION DRIVEN FABRICATION OF NANOFIBRILLAR ARCHITECTURE

This present disclosure provides methods for utilizing such forces in when generating nanofibrillar constructs with engineered morphology from the nano- to macro-scales. Using for example, a biopolymer silk fibroin as a base material, patterns of an intermediate hydrogel were generated within a deformable mold. Subsequently, mechanical tension was introduced via either hydrogel contraction or mold deformation, and finally a material is reentrapped in this transformed shape via beta-sheet crystallization and critical point drying. Topdown engineered anchorages, cables, and shapes act in concert to mediate precision changes in nanofiber alignment/orientation and a macroscale form of provided nanofibrillar structure. An ability of this technique to engineer large gradients of nano- and micro-scale order, manipulate mechanical properties (such as plasticity and thermal transport), and the in-situ generation of 2D and 3D, multi-tiered and doped, nanofibrillar constructs was demonstrated.


» Number: WO2018026853A1 (A1)

» Publication Date: 18//2/08/0

» Applicant: TUFTS COLLEGE?[US]

» Inventor: OMENETTO FIORENZO G?[US]; TSENG PETER?[US]

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n [310187].