Thermally conducting composition and method for producing the same
US-2016319176-A1 · Nov 3, 2016 · US
Ultrafiltration membrane based on bacterial nanocellulose and graphene oxide
US10744461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10744461-B2 |
| Application number | US-201916276106-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2019 |
| Priority date | Aug 2, 2016 |
| Publication date | Aug 18, 2020 |
| Grant date | Aug 18, 2020 |
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- Title
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Abstract
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The present disclosure is directed to ultrafiltration membranes based on bacterial nanocellulose and graphene oxide. In particular, the present disclosure is directed to the novel design and incorporation of membranes for realizing new, highly efficient, and environmentally-friendly anti-biofouling membranes for water purification.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for the preparation of a bilayered biofilm comprising nanocellulose and a nanomaterial, the method comprising: providing a bacterial culture of Gluconacetobacter hansenii in a growth media; incubating the bacterial culture and the nanomaterial until a first biofilm layer forms; adding additional growth media on top of the first biofilm layer, said additional growth media comprising the bacterial culture; and, incubating the bacterial culture until a second biofilm layer forms thereby forming a bilayered biofilm, wherein one of the bacterial cultures in growth media further comprises a nanomaterial. 2. The method of claim 1 , further comprising one or more of the following: harvesting the bilayered biofilm, washing the bilayered biofilm, dialyzing the bilayered biofilm in water, or freeze-drying the bilayered biofilm. 3. The method of claim 1 wherein the nanomaterial is selected from the group consisting of graphene oxide, reduced graphene oxide, molybdenum disulfide, polydopamine, functionalized multiwalled carbon nanotubes and combinations thereof. 4. The method of claim 1 , wherein the nanomaterial is polydopamine. 5. The method of claim 1 , wherein the nanomaterial is selected from the group consisting of graphene oxide, reduced graphene oxide and a combination thereof.
Assignees
Inventors
Classifications
Fibril, or microfibril structures · CPC title
Pore size · CPC title
Renewable energy sources, e.g. sunlight · CPC title
Cellulose; Modified cellulose · CPC title
in-situ membrane formation · CPC title
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Frequently asked questions
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- What does patent US10744461B2 cover?
- The present disclosure is directed to ultrafiltration membranes based on bacterial nanocellulose and graphene oxide. In particular, the present disclosure is directed to the novel design and incorporation of membranes for realizing new, highly efficient, and environmentally-friendly anti-biofouling membranes for water purification.
- Who is the assignee on this patent?
- Singamaneni Srikanth, Jun Young-Shin, Jiang Qisheng, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B01D65/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 18 2020 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).