Abstract:
An object information acquiring apparatus includes: a light source radiating first light having a first wavelength λ1 and second light having a second wavelength λ2; a detection unit detecting an acoustic wave generated from an object irradiated with the light, and converting the acoustic wave into a detection signal; and a signal processing unit acquiring characteristic information of the inside of the object based on the detection signal. The signal processing unit acquires the characteristic information by performing subtraction processing between a signal generated as a result of the first light being absorbed by hemoglobin and a signal generated as a result of the second light being absorbed by hemoglobin.
Abstract:
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.
Abstract:
The present invention provides a compound which exhibits a high degree of accumulation into a tumor even when some extent of time has passed after performing administration and which facilitates an increase in the intensity of photoacoustic signal produced by the tumor. A compound produced by bonding of a polyethylene glycol and a specific cyanine based compound.
Abstract:
There is provided an electron-emitting device of a field emission type, with which the spot size of an electron beam is small, an electron emission area is large, highly efficient electron emission is possible with a low voltage, and a manufacturing process is easy. The electron-emitting device includes a layer 2 which is electrically connected to a cathode electrode 5, and a plurality of particles 3 which contains a material having resistivity lower than that of a material constituting the layer 2, and is wherein a density of particles 3 in the layer 2 is 1 x 10 14 /cm 3 or more and 5 x 10 18 /cm 3 or less.
Abstract translation:提供了一种场致发射型电子发射装置,其电子束的光点尺寸小,电子发射面积大,电子发射能够以低电压发射,制造工艺容易 。 电子发射器件包括电连接到阴极电极5的层2和包含比构成层2的材料的电阻率低的材料的多个颗粒3,其中颗粒3的密度 在层2中为1×10 14 / cm 3以上且5×10 18 / cm 3以下。
Abstract:
To provide a compound of formulaes (I), (II) and (III) having high T/B and a contrast agent for optical imaging. The compound has a molecular weight of a specific range, the compound in which two polyethylene glycols are bonded to a specific cyanine pigment through a linker. The present invention provides a compound which has a high T/B and which can be used as a contrast agent capable of imaging a tumor portion with high contrast.
Abstract:
There is provided a contrast agent for photoacoustic imaging, the contrast agent exhibiting high tumor accumulation and high photoacoustic signal intensity even when time has passed since administration. A contrast agent for photoacoustic imaging comprises a complex including albumin covalently bound to an organic dye that absorbs light in the near-infrared wavelength region.