Bioinspired Cyclic Dipeptide Functionalized Nanofibers for Thermal Sensing and Energy Harvesting

• DOI: 10.20944/preprints202302.0365.v1
• Publication Date: 2023-02-22T10:25:13Z
• Authors: Daniela Santos; Rosa M. F. Baptista; Adelino Handa; Bernardo Almeida; Pedro V. Rodrigues; Ana R. Torres; Ana Machado; Michael Belsley; Etelvina De Matos...
• Keywords: energy harvesting; Science & Technology; nanotechnology; Ciências Naturais::Ciências Físicas; biopolymers; 02 engineering and technology; 7. Clean energy; Article; cyclic dipeptides; nanofibers; photoluminescence; cyclic dipeptides; biopolymers; electrospinning; photoluminescence; nanofibers; energy harvesting; 0210 nano-technology; electrospinning

Nanostructured dipeptide self-assemblies exhibiting quantum confinement are of great interest due to their potential applications in the field materials science as optoelectronic for energy harvesting devices. Among those, aromatic cyclo-dipeptides containing amino acid tryptophan wide-band gap semiconductors displaying high mechanical rigidity, photoluminescence and piezoelectric properties be used power generation. In this work, we report fabrication hybrid systems based on chiral cyclo-dipeptide L-Tryptophan- L-Tryptophan incorporated into biopolymer electrospun fibers. The micro/nanofibers contain self-assembled nanospheres embedded polymer matrix (gap 3.8 eV), display blue relevant pyroelectric with coefficients 57 pCN-1 35×10-6 Cm-2k-1, respectively. They therefore promise thermal sensing applications.