摘要:
A polypeptide thin film obtained by polymerizing a monomolecular film comprising a monomer mixture of(a) an amphiphilic compound having a hydrophobic moiety and a hydrophilic moiety having an amino acid ester structure per molecule, the conjugated acid of the elimination group of the ester having a pKa of not higher than 14, and(b) an amphiphilic compound having two amino groups per molecule or an amphiphilic compound having two ester structures per molecule, the conjugated acid of the elimination group of the ester having a pKa of not higher than 16,or a built-up film of the monomolecular film; and a process for preparing a material carrying the polypeptide thin film.
摘要:
A peptide derivative containing 1 to 20 units of peptide unit represented by the following general formula [I] or a pharmaceutically acceptable salt thereof;[Z]--Arg--X--Asp--[Y] [I]wherein Arg represents L- or D-arginine residue, Asp represents L-aspartic acid residue, X represents L- or D-leucine, D-isoleucine, L- or D-norleucine, L- or D-phenylalanine, D-phenylglycine or D-alanine residue, and [Z] and [Y] each represents an amino acid or a peptide residue, which may be present or absent, selected from glycine, L-serine, L-threonine, L- and D-aspartic acid, L-alanine, L- and D-glutamic acid, L-proline residues and a peptide residue constituted by the foregoing amino acid residues, and a pharmaceutical composition comprising the peptide derivative. The composition of the present invention is useful as an agent for inhibiting tumor metastasis.
摘要:
A polypeptide thin film produced by polymerizing a monomolecular film or a built-up film comprising an amphipatic phospholipid compound, wherein the amphipatic phospholipid compound has a hydrophobic portion and a hydrophilic portion having an amino acid ester structure in the molecule, the amino acid ester structure containing a splitting-off group with a pKa value of the conjugated acid thereof being 16 or below.
摘要:
A surface-modifiable liposome comprising a compound represented by formula (I) or (II): ##STR1## and a lipid capable of forming a liposome, wherein R.sub.1 represents a hydrophobic group;R.sub.2 and R.sub.3 represent each an organic group including a hydrogen atom) R.sub.2 and R.sub.3 optionally combined with each other to form a double bond or a ring;X and Y each represents an oxygen atom or a sulfur atom; R.sub.2 ' and R.sub.3 ' each represents a hydrogen atom or an organic group; W represents a linking group; n represents 0 or 1; and Z represents a hydrophilic group;and a process for producing a surface-modified liposome by using the surface-modifiable liposome.
摘要:
A polypeptide thin film obtained by polymerizing a monomolecular film comprising an amphiphilic compound having a hydrophobic moiety and a hydrophilic moiety having an amino acid ester structure per molecule, the conjugated acid of the elimination group of said ester having a pKa of not higher than 14, or a built-up film of said monomolecular film; and a process for preparing a material on which said polypeptide thin film is carried.
摘要:
A method for image processing executed by an image processing apparatus includes sequentially receiving PDL data and transferring a figure included in the PDL data to processing in a subsequent stage, assigning edge extraction processing as a unit of processing for extracting edge information for each transferred figure, merging the edge information extracted from each figure, spooling the merged data in a tile format as intermediate data, and reading out the intermediate data in the tile format from spooling process and performing processing on each tile to generate a pixel from the intermediate data.
摘要:
An optically driven actuator includes a crosslinked polymer obtained by crosslinking at least part of the side chains of a condensation polymer having, on its backbone chain, a photoisomerizable group that undergoes structural change under optical stimulation. The crosslinked polymer deforms reversibly depending on optical stimulation, thereby performing the function of an actuator.
摘要:
A surface treating agent for resist pattern formation comprises a compound having two or more nucleophilic functional groups in each of the molecules thereof, or its salt, and a solvent.
摘要:
An organic electroluminescent device including a pair of electrodes and a layer that is disposed between the pair of electrodes and includes a compound represented by the following formula (1): wherein each of A1, A2, B, C, n1 and n2 is given the definition as set forth in the specification and claims.
摘要:
A novel nonlinear optical material is disclosed. The nonlinear optical material comprises a nonlinear optically-responsive layer formed by exposing a layer of a composition to light under an external electric field or an external magnetic field. The composition comprises a liquid crystalline/nonlinear optically-responsive compound having a polymerizable group and a nonlinear optically-responsive group, and a compound having at least one photoresponsive isomerization group, or comprises a polymer having a nonlinear optically-responsive group and a photoresponsive isomerization group.