Peptide nanophotonics – from bio-waveguides to integrated photonic devices
Journal Title: Proceedings of the International Conference on Advanced Materials and Systems (ICAMS) - Year 2018, Vol 1, Issue
Abstract
Optical waveguiding phenomena in bioinspired chemically synthesized peptide nanostructures can be used to revolutionize emerging fields of precision medical trials and health monitoring. New biomedical light therapy tools and implantable optical biochips can be produced using bioinspired peptide nanostructures due to a unique combination of their intrinsic biocompatibility and remarkable multifunctional optical properties. This essay highlights a new field of peptide nanophotonics. It covers peptide nanotechnology and fabrication processes of peptide integrated optical circuits, basic studies of linear and nonlinear optical phenomena in biological and bioinspired nanostructures, and passive and active optical waveguiding in peptide nanostructures. We show that optical properties of this new generation of biooptical materials are governed by fundamental biological processes. Refolding of the peptide secondary structure is followed by wideband optical absorption and visible tunable fluorescence. In peptide optical waveguides, such a new biooptical effect leads to switching from a passive waveguiding mode in native α-helical phase to an active one in β-sheet phase. Discovery of an active waveguiding effect in β-sheet fiber structures below the optical diffraction limit opens an avenue for future development of new bionanophotonics devices using ultrathin peptide/protein fibrillar structures for advanced biomedical and nanotechnology applications.
Authors and Affiliations
Amir Handelman, Boris Apter, Gil Rosenman
New products based on essential oils for finishing natural leathers with antifungal performances – part 2
Research aims the replacement of potentially toxic biocides with ecologic materials – essential oils extracted from plants. Some biocides used in the leather industry have a certain toxicity, and are prohibited by the d...
Patrimony textile materials short characterization
In this paper we aimed to characterize heritage samples trough different analyses such as physicochemical and microbiological bioburden assessment analyses. The characterization was made on two types of textile materials...
Physical and chemical assessment of a patrimony sample
The objective of this paper was to investigate the physical and chemical properties of a sample from a national heritage private collection from the beginning of the 20th century. The fibrous composition was determined b...
Study of wound-dressing materials based on collagen, sodium carboxymethylcellulose and silver nanoparticles used for their antibacterial activity in burn injuries
There are 2 types of bacteria that can produce serious infections and in many cases they lead to intestinal infections, meningitis or even toxic shock syndrome: Escherichia coli (E.coli) and Staphyloccocus aureus (S.aure...
Undergarment PPE with modular structure for staff working in the national defense, public order and security system
The protection of operational staff from defense, public order, security structures, with a personal protective equipment system adequate to the conditions of execution of specific missions is a major desiderate for opti...