Blood purification column
US-2015374898-A1 · Dec 31, 2015 · US
Electrospun cactus mucilage nanofibers
US9555392B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9555392-B2 |
| Application number | US-201213532189-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2012 |
| Priority date | Jun 24, 2011 |
| Publication date | Jan 31, 2017 |
| Grant date | Jan 31, 2017 |
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Abstract
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Novel electrospun nanofibers and nanofibrous membranes, methods of manufacturing the same, and methods of using the same are provided. The nanofibers include a cactus mucilage, such as mucilage from Opuntia ficus - indica . An organic polymer can be added to the cactus mucilage before electrospinning. The nanofibrous membranes can be used in water filtration.
First claim
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We claim: 1. An electrospun nanofiber, comprising a cactus mucilage, wherein the cactus mucilage has a linear repeating chain of (1→4)-linked β-D-galacturonic acid and an α(1→2)-linked L-rhamnose with trisaccharide side chains of β(1→6)-linked D-galactose attached at O(4) of L-rhamnose residues. 2. The electrospun nanofiber according to claim 1 , wherein the cactus mucilage is Opuntia ficus - indica (Ofi) mucilage. 3. The electrospun nanofiber according to claim 2 , further comprising an organic polymer. 4. The electrospun nanofiber according to claim 3 , wherein the organic polymer is polyvinyl alcohol (PVA). 5. The electrospun nanofiber according to claim 1 , further comprising an organic polymer, wherein the organic polymer is polyvinyl alcohol (PVA), chitosan, polyethylene glycol (PEG), or poly lactic acid (PLA). 6. A nanofibrous membrane, comprising at least one electrospun nanofiber according to claim 1 . 7. The nanofibrous membrane according to claim 6 , wherein the cactus mucilage is Opuntia ficus - indica (Ofi) mucilage. 8. The nanofibrous membrane according to claim 6 , wherein the at least one electrospun nanofiber further comprises an organic polymer, wherein the organic polymer is polyvinyl alcohol (PVA), chitosan, polyethylene glycol (PEG), or poly lactic acid (PLA). 9. The electrospun nanofiber according to claim 1 , in which the cactus mucilage has 55 sugar residues. 10. The electrospun nanofiber according to claim 1 , in which the diameter is 10 nm to 10 μm. 11. The electrospun nanofiber according to claim 1 , in which the cactus mucilage has a xylose to arabinose ratio of about 1:2 in its peripheral chains. 12. The electrospun nanofiber according to claim 5 , in which the organic polymer and the cactus mucilage are present in a ratio of either 70:30 or 50:50 (organic polymer:cactus mucilage).
Assignees
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Classifications
Textiles: spinning, twisting, and twining · CPC title
Nanoparticles or nanotubes · CPC title
by nanofiltration · CPC title
Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton · CPC title
Membranes or mats made from fibers or filaments · CPC title
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Frequently asked questions
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- What does patent US9555392B2 cover?
- Novel electrospun nanofibers and nanofibrous membranes, methods of manufacturing the same, and methods of using the same are provided. The nanofibers include a cactus mucilage, such as mucilage from Opuntia ficus - indica . An organic polymer can be added to the cactus mucilage before electrospinning. The nanofibrous membranes can be used in water filtration.
- Who is the assignee on this patent?
- Thomas Sylvia W, Pais Yanay, Alcantar Norma A, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B01J20/28023. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 31 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).