VIRUS REMOVAL MEMBRANE

摘要

A virus removal membrane is formed from cellulose, in which, when a solution containing gold colloids having a diameter of 20 nm is applied through a primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area is 0.01 or more and 1.5 or less; and a thickness of a portion, where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured, in the cross section of the virus removal membrane in a wet state is 10.0 μm or more and 30.0 μm or less.

主权项

1. A virus removal membrane for removing viruses from a protein-containing solution,
the virus removal membrane comprising a primary surface to which the protein-containing solution is applied, and a secondary surface from which a liquid that permeates through the virus removal membrane is flowed, wherein, when a solution containing gold colloids having a diameter of 20 nm is applied through the primary surface to the virus removal membrane to allow the virus removal membrane to capture the gold colloids for measurement of brightness in a cross section of the virus removal membrane, a value obtained by dividing a standard deviation of a value of an area of a spectrum of variation in the brightness by an average of the value of the area of the spectrum of variation in the brightness is 0.01 or more and 1.50 or less; a thickness of a portion where gold colloids having a diameter of 20 nm or more and 30 nm or less are captured in the cross section of the virus removal membrane in a wet state is 10.0 μm or more and 30.0 μm or less; and the virus removal membrane is formed of cellulose.