Chemical Communications
Abstract
Significant progress was achieved throughout this project. The automatization of silk solution was developed. Examination of different processing conditions for the raw material showed promise for higher durability and higher flexibility optical substrates. Progress on interfaces was solidified. The previous findings on silk-metal interfaces were successfully exploited for the development of structures for use in integrated silk protein devices. We succeeded in demonstrating parallel transfer on microstructured gold structures onto silk films for large-area manufacturing of micro- and nanoscale structures. Demonstration of a combination of structural color imprinting on doped (fluorescent) films was pursued for structure-dependent fluorescence enhancement. We also demonstrated the first use of silk as a gate dielectric in an organic semiconductor device and a variety of metamaterial structures. The latter function as environmental sensors by wirelessly transducing environmental perturbations. In addition, the direct inclusion of dopants or the use of surface chemistries to add function to silk, were successful directions pursued. Among the most interesting modifications of silk were the explorations of silk solution doped with Au-nanoparticles (NP). This silk can be transformed in multiple material formats maintaining a high concentration of Au-NP without aggregation, and allowing for thermal management of the film via optical excitation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 26, 2012
- Accession Number
- ADA577840
Entities
People
- David L. Kaplan
- Fiorenzo G Omenetto
Organizations
- Tufts University