摘要:
The present invention provides a composite particle having a high molar absorption coefficient for detection with higher detection sensitivity in photoacoustic imaging. In the present invention, a composite particle having a particle, a single-chain antibody which includes an antigen recognition region and a region other than the antigen recognition region and which is conjugated with the particle, and an organic dye conjugated with the single-chain antibody, in which the region other than the antigen recognition region of the single-chain antibody has thiol group, and a functional group of the particle is bound to the thiol group, is provided.
摘要:
It is intended to provide a novel contrast agent for photoacoustic imaging that is highly capable of binding to a target molecule and generates high photoacoustic signals. The present invention provides a contrast agent for photoacoustic imaging represented by Formula 1: MNP−((L)l−(P)m)n (Formula 1) (wherein MNP represents a particle containing an iron oxide particle; L represents a linker molecule; P represents a ligand molecule; l represents 0 or 1; and m and n represent an integer of 1 or larger), the contrast agent for photoacoustic imaging including: a particle containing an iron oxide particle that absorbs light in a near-infrared region; and at least one or more ligand molecule(s) immobilized on the particle containing an iron oxide particle, wherein the immobilization density of the ligand molecule is equal to or higher than the cell surface density of a target molecule.
摘要:
It is an object of the present invention to obtain a labeled protein, and specifically, to separate a labeled protein and the same unlabeled protein. There is provided a labeled protein including: a protein to be labeled having a target protein, at least one or more affinity interaction domains for binding to an affinity support, and at least one or more labeling sites; and a labeling reagent binding to at least one of the labeling sites; wherein the affinity of the labeled protein for the affinity support is difference from that of the protein to be labeled for the affinity support.
摘要:
A compound including a polymer is represented by general formula (1): L-Y-A (1) wherein, A is a single-chain antibody moiety, which is a polypeptide including an antigen-binding site, L is a linker moiety, which is a polypeptide including a protease cleavage site, Y is a peptide moiety, which includes 0 or more amino acids connecting the linker moiety L with the single-chain antibody moiety A, and the linker moiety L binds to an N terminus of the peptide moiety Y or an N terminus of the single-chain antibody moiety A.
摘要:
It is an object of the present invention to obtain a labeled protein, and specifically, to separate a labeled protein and the same unlabeled protein. There is provided a labeled protein including: a protein to be labeled having a target protein, at least one or more affinity interaction domains for binding to an affinity support, and at least one or more labeling sites; and a labeling reagent binding to at least one of the labeling sites; wherein the affinity of the labeled protein for the affinity support is difference from that of the protein to be labeled for the affinity support.
摘要:
There is provided an ICG-loaded polymer nanoparticle that is dynamically stable, prevents the leakage of contained ICG and the resulting discoloration, and has a high molar absorbance coefficient. The particle contains a hydrophilic dye having a sulfonate group and a hydrophobic polymer, and the particle further contains at least one of a lipid having a positively charged region, a nicotinic acid derivative and a thiamine derivative.
摘要:
Regarding a composite particle in the related art, an antibody and a dye are bound to the surface of the particle. Therefore, it is not possible to bind both the antibody and the dye high in number. Accordingly, the present invention provides a composite particle, wherein a large acoustic wave can be emitted and both the antibody and the dye can be bound high in number. A composite particle including a core particle, a dye bound to the above described core particle, and an antibody, wherein the above described antibody is bound to the above described dye, is suitable for use.
摘要:
It is intended to provide a novel contrast agent for photoacoustic imaging that is highly capable of binding to a target molecule and generates high photoacoustic signals. The present invention provides a contrast agent for photoacoustic imaging represented by Formula 1: MNP-((L)l-(P)m)n (Formula 1) (wherein MNP represents a particle containing an iron oxide particle; L represents a linker molecule; P represents a ligand molecule; l represents 0 or 1; and m and n represent an integer of 1 or larger), the contrast agent for photoacoustic imaging including: a particle containing an iron oxide particle that absorbs light in a near-infrared region; and at least one or more ligand molecule(s) immobilized on the particle containing an iron oxide particle, wherein the immobilization density of the ligand molecule is equal to or higher than the cell surface density of a target molecule.
摘要:
When an antigen present at lesion sites is detected using a compound containing a single-chain antibody moiety, the single-chain antibody moiety binds to the antigen present at sites other than lesion sites. As a result, the detection of the lesion sites with high sensitivity and high contrast is difficult, and a compound solving this problem is demanded.The present invention provides a compound including a polymer represented by general formula (1): L-Y-A (1) wherein, A is a single-chain antibody moiety, which is a polypeptide including an antigen-binding site; L is a linker moiety, which is a polypeptide including a protease cleavage site; Y is a peptide moiety, which including 0 or more amino acids connecting the linker moiety L with the single-chain antibody moiety A; and the linker moiety L binds to an N terminus of the peptide moiety Y or an N terminus of the single-chain antibody moeity A.
摘要:
There is provided an ICG-loaded polymer nanoparticle that is dynamically stable, prevents the leakage of contained ICG and the resulting discoloration, and has a high molar absorbance coefficient. The particle contains a hydrophilic dye having a sulfonate group and a hydrophobic polymer, and the particle further contains at least one of a lipid having a positively charged region, a nicotinic acid derivative and a thiamine derivative.