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Biopolymer photonic crystals and method of manufacturing the same

a technology of photonic crystals and biopolymers, applied in the field of biopolymer photonic crystals, can solve the problems of non-biodegradable materials, materials that are not biodegradable, and remain in the environment, and achieve the effects of novel structure and resulting functions, impressive mechanical properties, and minimal environmental impa

Inactive Publication Date: 2010-02-25
TRUSTEES OF TUFTS COLLEGE TUFTS UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes an innovation in creating photonic crystals - which are optical devices used in many applications like communication technology - using biopolymers found in nature, specifically silk. Silk has unique characteristics like being strong and flexible, making it ideal for use in these types of crystals. Additionally, there are several other natural biopolymers that may be used instead of silk. The technical effect of this invention is that we provide better ways to make photonic crystals that are more eco-friendly and compatible with human bodies.

Problems solved by technology

The technical problem addressed in this patent is the need for optical devices made from more eco-friendly materials than traditional non-biodegradable ones, while still providing useful functions without adding excessive cost or damaging the environment. Additionally, it seeks to address the desire for improved functionality beyond what current photonic crystals offer.

Method used

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  • Biopolymer photonic crystals and method of manufacturing the same
  • Biopolymer photonic crystals and method of manufacturing the same
  • Biopolymer photonic crystals and method of manufacturing the same

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Embodiment Construction

[0049]Initially, it is noted that in view of the superior functional characteristics and processability that were noted above, biopolymer photonic crystals of the present invention are described herein below as being implemented with silk, which is biocompatible and biodegradable. In this regard, the silk utilized was silkworm silk. However, there are many different silks, including spider silk, transgenic silks, and genetically engineered silks, variants and combinations thereof and others, that may alternatively be used in accordance with the present invention to manufacture a biopolymer photonic crystal in accordance with the present invention.

[0050]In addition, other biodegradable polymers may be used instead of silk. For example, some biopolymers, such as chitosan, exhibit desirable mechanical properties, can be processed in water, and forms generally clear films for optical applications. Other biopolymers, such as collagen, cellulose, chitin, hyaluronic acid, amylose, and the ...

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Abstract

A method of manufacturing a biopolymer photonic crystal includes providing a biopolymer, processing the biopolymer to yield a biopolymer matrix solution, providing a substrate, casting the matrix solution on the substrate, and drying the biopolymer matrix solution to form a solidified biopolymer film. A surface of the film is formed with a nanopattern, or a nanopattern is machined on a surface of the film. In another embodiment, a plurality of biopolymer films is stacked together. A photonic crystal is also provided that is made of a biopolymer and has a nanopatterned surface. In another embodiment, the photonic crystal includes a plurality of nanopatterned films that are stacked together.

Description

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Claims

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Application Information

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Owner TRUSTEES OF TUFTS COLLEGE TUFTS UNIV
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