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Nanostructured Casting of Organic and Biopolymers in Porous Silicon Templates

Detailed Technology Description

Researchers at UC San Diego have demonstrated the templating of solution-cast and injection molded thermoplastic organic, inorganic, and biopolymers in porous Si multilayer (Rugate, Bragg filter) structures. The castings retain the photonic structure of the template. Demonstrated uses of the castings include vapor sensors, deformable and tunable optical filters, as well as self-reporting, bioresorbable drug-delivery materials.

Supplementary Information

Patent Number: US7713778B2
Application Number: US2003544801A
Inventor: Li, Yang Yang | Cunin, Frederique | Sailor, Michael J. | Link, Jamie R. | Gao, Ting
Priority Date: 13 Feb 2003
Priority Number: US7713778B2
Application Date: 11 Jan 2006
Publication Date: 11 May 2010
IPC Current: H01L002100
US Class: 438099 | 438753 | 977921
Assignee Applicant: Univ California
Title: Nanostructured casting of organic and bio-polymers in porous silicon templates
Usefulness: Nanostructured casting of organic and bio-polymers in porous silicon templates
Summary: The method is used for generating three-dimensional nanostructures, such as freestanding porous polymer film, freestanding mechanically deformable filter, biocompatible bioresorbable polymer nanostructures, and biodegradable nanostructures for controlled drug delivery system (claimed). The nanostructure includes vapor sensors, chemical sensors, biological sensors, bioimplant materials, optical switching devices, information displays (cathode ray tube, liquid crystal displays (LCDs), photonic crystals, dielectrical mirrors, microcavities and other optical structures.
Novelty: Generating three-dimensional nanostructures e.g. chemical sensors and optical filters, involves creating porous silicon template from silicon substrate, depositing material into the template, and removing the porous silicon template

Industry

Electronics

Sub Category

Display

Application No.

7713778

Others

Related Materials

• View inventor's Smart Dust presentation from 2005.
• Visit inventor's lab link at http://chem-faculty.ucsd.edu/sailor/research.

Intellectual Property Info

This technology is available for licensing.

Tech ID/UC Case

19584/2003-024-0

Related Cases

2003-024-0

*Abstract

Synthesis of materials inside templates has emerged as a useful and versatile technique to generate three-dimensional nanostructures. Previous approaches use templates consisting of microporous membranes, zeolites, and crystalline colloidal arrays. These have been used to construct elaborate electronic, mechanical, or optical structures. Porous Si is an attractive candidate as a template because the porosity and average pore size can be readily tuned by adjustment of the electrochemical preparation conditions. Additionally, elaborate 2- and 2.5-dimentional photonic crystals are readily prepared in porous Si.

*IP Issue Date

May 11, 2010

*Principal Investigator

Name: Frederique Cunin

Department:

Name: Ting Gao

Department:

Name: Yang Yang Li

Department:

Name: Jamie Link

Department:

Name: Michael Sailor

Department:

Country/Region

USA