DERIVATIZED POROUS SILICON

Biomaterial comprising derivatized porous silicon is described. Derivatizati on of the porous silicon has been found to increase its stability. The porous silicon is preferably derivatized by a technique that does not involve oxidation of the silicon, e.g. by hydrosilylation. The derivatized porous...

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Bibliographic Details
Main Authors CANHAM, LEIGH TREVOR, BARRETT, CHRISTOPHER PAUL
Format Patent
LanguageEnglish
French
Published 09.11.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
DIAGNOSIS
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
ELECTRICITY
ELECTROTHERAPY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MAGNETOTHERAPY
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
RADIATION THERAPY
SURGERY
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
ULTRASOUND THERAPY
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Summary:Biomaterial comprising derivatized porous silicon is described. Derivatizati on of the porous silicon has been found to increase its stability. The porous silicon is preferably derivatized by a technique that does not involve oxidation of the silicon, e.g. by hydrosilylation. The derivatized porous silicon is stable to boiling in aerated water for preferably at least two hours. The derivatized porous silicon is preferably at least substantially stable to boiling in aerated basic solutions of aqueous KOH (pH 10) and solutions of 25 % EtOH/75 % aqueous KOH (pH 10) for one hour. The corrosion rate of the derivatized porous silicon material in simultated human plasma, is a factor of at least two orders of magnitude lower than underivatized porous silicon. The porosity of the derivatized porous silicon is preferably at lea st 5 %. Devices comprising the derivatized porous silicon are also described. These include immunoisolation devices, biobattery devices, and optical devic es.
Bibliography:Application Number: CA20002368679