A cellulose compound film containing a cellulose compound having two or more substituents whose polarizability anisotropies Δα calculated by mathematical formula (1) are different from each other, wherein substitution degrees of the following substituents A and B in the cellulose compound satisfy relationship as defined by mathematical formula (A1), in which the substituent A has the lowest Δα and the substituent B has the highest Δα:
Δ
α
=
α
x
-
α
y
+
α
z
2
Mathematical
formula
(
1
)
wherein, in characteristic values obtained after diagonalization of polarizability tensor, αx is the largest component, αy is the second largest component, and αz is the smallest component;
DS
B
2+
DS
B
3−
DS
B
6≧−0.1 Mathematical formula (A1)
wherein DS
B
2, DS
B
3, and DS
B
6 represent a substitution degree of the substituent B at the 2-, 3-, or 6-position of a β-glucose ring constituting unit of cellulose, respectively; and
an optical compensation film, a polarizing plate, and a liquid crystal display device, using the cellulose compound film.
Cellulose Acylate Film, Method of Producing the Same, Cellulose Derivative Film, Optically Compensatory Film Using the Same, Optically-Compensatory Film Incorporating Polarizing Plate, Polarizing Plate and Liquid Crystal Display Device
申请人:Haruta Hiromoto
公开号:US20090290100A1
公开(公告)日:2009-11-26
A method of producing a cellulose derivative film, the method comprising: forming a film with a solvent cast method from a dope including a cellulose derivative satisfying following conditions (a) and (b): (a) at least one among three hydroxyl groups included in a glucose unit of cellulose is substituted by a substituent of which a polarizability anisotropy Δα represented as following Expression (1) is 2.5×10
−24
cm
3
or higher: Expression (1): Δα=αx−(αy+αz)/2, wherein αx, αy and αz is as defined in the specification; and (b) when a substitution degree by a substituent of which Δα is 2.5×10
−24
cm
3
or higher is P
A
, and a substitution degree by a substituent of which Δα is lower than 2.5×10
−24
cm
3
is P
B
, the P
A
and P
B
satisfy following Expressions (3) and (4): Expression (3): 2P
A
+P
B
>3.0; and Expression (4): P
A
>0.2.
Synthesis, cytotoxicity and DNA-binding of novel bisnaphthalimidopropyl derivatives in breast cancer MDA-MB-231 cells
作者:Gemma A. Barron、Giovanna Bermano、Amanda Gordon、Paul Kong Thoo Lin
DOI:10.1016/j.ejmech.2009.12.047
日期:2010.4
New naphthalimidopropyl, bisphthalimidopropyl and bisnaphthalimidopropyl (BNIP) derivatives were synthesised and characterised. Their interactions with Calf Thymus DNA were studied by UV spectrophotometric analysis and a competitive Ethidium bromide displacement assay. Cytotoxicity was determined by MTT assay in a breast cell system (MDA-MB-231 and MCF-10A cells). All BNIPs exhibited strong DNA-binding properties and cytotoxic activity with IC(50) values in the range of 0.83-12.68 mu M (24 and 48 h treatment). In addition, the uptake of BNIP derivatives within cancer cells was not via utilisation of the MGBG polyamine transporter. Put together the results confirm that the presence of the bisnaphthalimidopropyl and alkyl linker functionality are crucial for exerting DNA-binding and cytotoxic properties, hence demonstrating promise in their further development as potential anti cancer agents. (C) 2009 Elsevier Masson SAS. All rights reserved.
Cellulose Acylate Film, and Polarizing Plate and Liquid-Crystal Display Device Using the Same
申请人:Sakurazawa Mamoru
公开号:US20080173215A1
公开(公告)日:2008-07-24
A cellulose acylate film comprising: at least one retardation regulator; and at least one UV absorber having at least one absorption maximum in a wavelength range of from 250 nm to 380 nm.
Cellulose Acylate Film, and Polarizing Plate and Liquid Crystal Display Device Using the Same
申请人:Sakurazawa Mamoru
公开号:US20090103014A1
公开(公告)日:2009-04-23
A cellulose acylate film comprising: (A) at least one retardation regulator that has an absorbance, in terms of a 1.0 g/liter solution, of 0.1 or less for a 1 cm path length within a wavelength region of 450 nm or greater but not greater than 800 nm; and (B) at least one near infrared absorber that has at least one maximum absorption wavelength at 700 nm or greater but not greater than 1200 nm and has an absorbance, in terms of a 1.0 g/liter solution, of 30.0 or less for a 1 cm path length within a wavelength region of 450 nm or greater but not greater than 650 nm.