Abstract: Means for removing endotoxin is provided. Endotoxin is removed by contacting an endotoxin adsorbent including a cellulose nanofiber having an amino group with a liquid containing endotoxin.

Abstract: A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid.

Abstract: Means for removing endotoxin is provided. Endotoxin is removed by contacting an endotoxin adsorbent including a cellulose nanofiber having an amino group with a liquid containing endotoxin.

Abstract: A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid.

Abstract: A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid.

Abstract: A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid.

Abstract: A nucleic acid adsorbent in which a polymer having a constitutional unit represented by the following formula (I) is immobilized on a water-insoluble carrier is used as a nucleic acid adsorbent capable of selectively and efficiently adsorbing nucleic acids from complex mixtures, such as cell extract, wherein R1 represents hydrogen, fluoride, or methyl; R2 and R3 each independently represent alkyl of 1 to 6 carbon atoms; A is —NH— or —O—; and B represents alkylene of 2 to 18 carbon atoms. Nucleic acids are recovered from cell extract by allowing them to be adsorbed to the nucleic acid adsorbent by mixing this nucleic acid adsorbent with cell extract, removing the nucleic acids from the cell extract by separating the adsorbent therefrom, and dissociating the nucleic acids from the nucleic acid adsorbent by treating the separated nucleic acid adsorbent with alkali.

Abstract: A nucleic acid adsorbent in which a polymer having a constitutional unit represented by the following formula (I) is immobilized on a water-insoluble carrier is used as a nucleic acid adsorbent capable of selectively and efficiently adsorbing nucleic acids from complex mixtures, such as cell extract, wherein R1 represents hydrogen, fluoride, or methyl; R2 and R3 each independently represent alkyl of 1 to 6 carbon atoms; A is —NH— or —O—; and B represents alkylene of 2 to 18 carbon atoms. Nucleic acids are recovered from cell extract by allowing them to be adsorbed to the nucleic acid adsorbent by mixing this nucleic acid adsorbent with cell extract, removing the nucleic acids from the cell extract by separating the adsorbent therefrom, and dissociating the nucleic acids from the nucleic acid adsorbent by treating the separated nucleic acid adsorbent with alkali.

Abstract: A nucleic acid adsorbent in which a polymer having a constitutional unit represented by the following formula (I) is immobilized on a water-insoluble carrier is used as a nucleic acid adsorbent capable of selectively and efficiently adsorbing nucleic acids from complex mixtures, such as cell extract, wherein R1 represents hydrogen, fluoride, or methyl; R2 and R3 each independently represent alkyl of 1 to 6 carbon atoms; A is —NH— or —O—; and B represents alkylene of 2 to 18 carbon atoms. Nucleic acids are recovered from cell extract by allowing them to be adsorbed to the nucleic acid adsorbent by mixing this nucleic acid adsorbent with cell extract, removing the nucleic acids from the cell extract by separating the adsorbent therefrom, and dissociating the nucleic acids from the nucleic acid adsorbent by treating the separated nucleic acid adsorbent with alkali.

Abstract: A nucleic acid adsorbent in which a polymer having a constitutional unit represented by the following formula (I) is immobilized on a water-insoluble carrier is used as a nucleic acid adsorbent capable of selectively and efficiently adsorbing nucleic acids from complex mixtures, such as cell extract, wherein R1 represents hydrogen, fluoride, or methyl; R2 and R3 each independently represent alkyl of 1 to 6 carbon atoms; A is —NH— or —O—; and B represents alkylene of 2 to 18 carbon atoms. Nucleic acids are recovered from cell extract by allowing them to be adsorbed to the nucleic acid adsorbent by mixing this nucleic acid adsorbent with cell extract, removing the nucleic acids from the cell extract by separating the adsorbent therefrom, and dissociating the nucleic acids from the nucleic acid adsorbent by treating the separated nucleic acid adsorbent with alkali.

Abstract: This invention provides an adsorbent having a high ability to adsorb endotoxin selectively and a method of adsorbing endotoxin. The adsorbent comprises a basic substance bonded to a base material by means of a crosslinking agent.

Abstract: This invention provides an adsorbent having a high ability to adsorb endotoxin selectively and a method of adsorbing endotoxin. The adsorbent comprises a basic substance bonded to a base material by means of a crosslinking agent.