US2012134917A1PendingUtilityA1

Dermatological composition

53
Individually held — no corporate assignee on recordPriority: Aug 18, 2000Filed: Jan 27, 2012Published: May 31, 2012
Est. expiryAug 18, 2020(expired)· nominal 20-yr term from priority
Inventors:Leigh CanhamRoger Aston
A61P 39/00A61P 17/14A61P 17/08Y10T428/2982A61P 17/00A61P 17/02A61Q 19/00A61K 2800/56A61K 33/00A61P 17/16A61P 17/10A61K 8/25A61P 17/06A61Q 17/04
53
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Claims

Abstract

Dermatological methods of cosmetic, therapeutic, prophylactic, and/or diagnostic treatment by topically applying compositions comprising a multiplicity of particles, at least one of the particles comprising porous and/or polycrystalline silicon. Included are methods and compositions for sun protection applications. The use of porous silicon, polycrystalline silicon, and porous silicon oxide mirrors is disclosed.

Claims

exact text as granted — not AI-modified
1 .- 13 . (canceled) 
     
     
         14 . A method of protecting the skin or a human or animal from UV radiation comprising the step of topically applying a dermatological composition comprising a plurality of particles comprising polycrystalline silicon. 
     
     
         15 . A method according to  claim 14  wherein the polycrystalline silicon has a particle size in a range of 0.01 to 250 μm. 
     
     
         16 . A method according to  claim 14  wherein the composition comprises a dermatologically acceptable carrier. 
     
     
         17 . A method according to  claim 14  wherein the polycrystalline silicon is resorbable. 
     
     
         18 . A method according to  claim 14  wherein the composition comprises a plurality of mirrors made from a plurality of layers of polycrystalline silicon, each mirror comprising a plurality of layers, each layer comprising polycrystalline silicon. 
     
     
         19 . A method according to  claim 18  wherein the composition comprises a plurality of groups of mirrors, each group reflecting radiation over a wavelength range that differs from that of the other groups. 
     
     
         20 . A method according to  claim 14  wherein the composition further comprises at least one beneficial substance. 
     
     
         21 . A method according to  claim 20  wherein the at least one beneficial substance is selected from the group consisting of a biological material, a genetic material, a radioactive material, an antibacterial and a luminescent material. 
     
     
         22 . A method according to  claim 14  wherein the polycrystalline silicon is present in the form of polycrystalline silicon oxide. 
     
     
         23 . A dermatological composition comprising a multiplicity of particles, each particle comprising polycrystalline silicon. 
     
     
         24 . A dermatological composition according to  claim 23  wherein the polycrystalline silicon has a particle size in a range of 0.01 to 250 μm. 
     
     
         25 . A dermatological composition according to  claim 23  wherein the composition comprises a dermatologically acceptable carrier. 
     
     
         26 . A dermatological composition according to  claim 23  wherein the polycrystalline silicon is resorbable. 
     
     
         27 . A dermatological composition according to  claim 23  wherein the composition comprises a plurality of mirrors made from a plurality of layers of polycrystalline silicon, each mirror comprising a plurality of layers, each layer comprising polycrystalline silicon. 
     
     
         28 . A dermatological composition according to  claim 23  wherein the composition comprises a plurality of groups of mirrors, each group reflecting radiation over a wavelength range that differs from that of the other groups. 
     
     
         29 . A dermatological composition according to  claim 23  wherein the composition further comprises at least one beneficial substance. 
     
     
         30 . A dermatological composition according to  claim 29  wherein the at least one beneficial substance is selected from the group consisting of a biological material, a genetic material, a radioactive material, an antibacterial and a luminescent material. 
     
     
         31 . A dermatological composition according to  claim 23  wherein the polycrystalline silicon is present in the form of polycrystalline silicon oxide.

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