DNA complex, adsorbent, adsorption column, purification system, liquid treatment method, and method for producing DNA complex

Patent metadata

Field	Value
Publication number	US-11633715-B2
Application number	US-202016830084-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Sep 29, 2017
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A DNA complex includes a carrier and DNA immobilized on the carrier. 80% or more by mass of the DNA is single-stranded DNA, the DNA has an average molecular weight of 500,000 or less, and the DNA content is more than 15% by mass and 50% or less by mass of the DNA complex. The carrier contains an inorganic material. The DNA complex has an average particle size of 10 μm or more.

First claim

What is claimed is:

1. A DNA complex comprising: a carrier; and DNA immobilized on the carrier,
wherein 80% or more by mass of the DNA is single-stranded DNA,
the DNA has an average molecular weight of 500,000 or less,
the carrier contains an inorganic material,
the DNA complex has an average particle size of 10 μm or more, the DNA content is more than 15% by mass and 50% or less by mass of the DNA complex, and
the carrier is an aggregate of primary particles, and
the primary particles have an average particle size in the range of 1 to 15 nm.

2. A DNA complex comprising: a carrier; and DNA immobilized on the carrier,
wherein 80% or more by mass of the DNA is single-stranded DNA,
the DNA has an average molecular weight of 500,000 or less, and
the carrier contains layered metal hydroxides.

3. The DNA complex according to claim 1 , wherein the carrier contains silica.

4. The DNA complex according to claim 1 , wherein the primary particles are cross-linked through a bond including a siloxane bond.

5. The DNA complex according to claim 2 , wherein the DNA complex has an average particle size of 10 μm or more.

6. The DNA complex according to claim 1 , wherein the DNA complex has an average particle size of 2000 μm or less.

7. The DNA complex according to claim 2 , wherein the DNA content ranges from 1% to 50% by mass of the DNA complex.

8. The DNA complex according to claim 2 , wherein the DNA content is more than 15% by mass and 50% or less by mass of the DNA complex.

9. An adsorption column comprising: a column; and an adsorbent filled in the column,
wherein the adsorbent contains the DNA complex according to claim 1 .

10. A purification system comprising: an adsorption column; and a liquid transfer unit for transferring a liquid containing ions containing at least one element selected from the group consisting of metallic elements and iodine into the adsorption column,
wherein the adsorption column is the adsorption column according to claim 9 .

11. A method for treating a liquid containing ions containing at least one element selected from the group consisting of metallic elements and iodine, comprising:
bringing the liquid into contact with an adsorbent,
wherein the adsorbent contains the DNA complex according to claim 1 .

12. A method for recovering a metal from a liquid containing a metallic element, comprising:
bringing the liquid into contact with an adsorbent; and
recovering the metal from the adsorbent,
wherein the adsorbent contains the DNA complex according to claim 1 .

13. A method for treating a heavy metal in incineration fly ash, comprising:
adding an adsorbent to the incineration fly ash,
wherein the adsorbent contains the DNA complex according to claim 1 .

14. The method for treating a heavy metal in incineration fly ash according to claim 13 , further comprising:
adding water to the incineration fly ash.

15. The DNA complex according to claim 2 , wherein the DNA complex has an average particle size of 2000 μm or less.

16. The DNA complex according to claim 1 , wherein the DNA complex has an average particle size of 500 μm or less.

17. The DNA complex according to claim 2 , wherein the DNA complex has an average particle size of 500 μm or less.

Assignees

• Canon Kk

Inventors

• Yamauchi Fumio
• Kanazaki Kengo
• Sakakibara Teigo
• Kotani Yoshinori
• Ueyama Ryoko

Classifications

• B01J20/28052

  Several layers of identical or different sorbents stacked in a housing, e.g. in a column · CPC title

• B09B2101/30

  Incineration ashes · CPC title

• B01J20/2803

  Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products · CPC title

• C12N15/00

  Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor (mutants or genetically engineered microorganisms, per se C12N1/00, C12N5/00, C12N7/00; new plants per se A01H; plant reproduction by tissue culture techniques A01H4/00; new animals per se A01K67/00; use of medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases, gene therapy A61K48/00) · CPC title

• C02F2103/08

  Seawater, e.g. for desalination · CPC title