Abstract: Provided are a liquid injection method, a liquid injection device, and a liquid cartridge capable of suppressing a wasteful consumption of a liquid. To this end, the liquid injection method is to eject a liquid from a liquid injector to a liquid cartridge including a liquid ejection head that ejects the liquid, a channel that is connected to the liquid ejection head and is capable of supplying the liquid to the liquid ejection head, and an opening portion that is connected to the channel and is provided to be wider than the channel. The methods includes directly injecting the liquid into the channel.

Abstract: There is provided an epoxy resin composition including: an epoxy resin, a thixotropic agent, a photobase generator, and an ether skeleton polythiol.

Abstract: Provided is a cell processing method including: preparing a cell suspension containing a cell to be processed and a target substance; and introducing the target substance into the cell to be processed by allowing a shear force to act on the cell to be processed, wherein the cell to be processed is a cell, which is selected from a cell group including cells in a proliferation process, and which has a cell diameter larger than a mode in a cell diameter distribution of the cell group.

Abstract: An ink jet recording head that includes a substrate having an ejection orifice for ejecting a liquid and a member provided with a recessed portion for accommodating the substrate, the head including a gap formed between a wall of the recessed portion of the member and the substrate, and a sealing material that seals the gap, in which the sealing material contains a cured product of a composition containing at least a hydrogenated bisphenol A type epoxy resin, a solid basic compound, and polythiol.

Abstract: A liquid ejection head to be sterilized includes: an ejection element substrate with an ejection port surface in which an ejection port for ejecting a liquid is formed; and a liquid storage part that stores the liquid to be supplied to the ejection port. A method of sterilizing the liquid ejection head includes: covering at least the ejection port surface with a protection member in a non-contact manner; making a liquid ejection head assembly by housing the protection member and the liquid ejection head or covering the protection member's opening portion with a sheet member that is vapor permeable at least at one portion so as to block entry of bacteria into the liquid ejection head; and performing vapor sterilization on the assembly.

Abstract: Provided is a liquid ejection apparatus, liquid ejection method, dispensing apparatus, and compound introduction apparatus capable of inhibiting contamination of a liquid after being ejected. The liquid ejection apparatus has an ejection unit having an ejection part and an ejection energy generation element that ejects a liquid from the ejection part by using a principle of inkjet ejection into an internal space in a storage part capable of storing the ejected liquid. When ejecting the liquid, the ejection unit covers an opening portion of the storage part to thereby screen the internal space in the storage part from an external space.

Abstract: Provided is a compound introduction apparatus including: a processing chamber; a first heater that introduces an introduction-target compound into a cell inside the processing chamber; a supply flow channel for supplying a cell suspension containing the cell and the introduction-target compound to the processing chamber; a discharge flow channel for discharging the cell suspension from the processing chamber; a second heater that prevents backflow of the cell suspension from the processing chamber into the supply flow channel; and a third heater that pressurizes the discharge flow channel.

Abstract: One embodiment of the present invention provides a compound introduction apparatus for introducing a compound into a cell, including: a supply flow channel for supplying a cell suspension containing the cell and the compound; an introduction unit configured to introduce the compound into the cell; and an ejection port for ejecting the cell suspension containing the cell in which the compound has been introduced. A height of the channel relative to a flow direction of the cell suspension through the channel is more than 1.0 times a diameter of the cell and less than 2.0 times the diameter, and a width of the channel relative to the flow direction is more than 1.0 times the diameter of the cell and less than 2.0 times the diameter, and a diameter of the ejection port is more than 1.0 times the diameter of the cell and less than 2.0 times the diameter.

Abstract: A unit for electrostatic filter includes: a repeated structure of patterns that are respectively formed of one selected from at least two different substances having different work functions. The patterns formed of the different substances are put in contact with each other. The work functions differ by 1 eV or greater between the different substances put in contact with each other in the patterns.

Abstract: There is provided an epoxy resin composition including: an epoxy resin, a thixotropic agent, a photobase generator, and an ether skeleton polythiol.

Abstract: There is provided an epoxy resin composition containing an epoxy resin, a solid basic compound, and a polythiol. By preparing a mixture 1 by kneading the epoxy resin with the solid basic compound, and then kneading the polythiol therewith, the dissolution of the solid basic compound into the polythiol is rate-limited to ensure the pot life, and due to a catalyst action by the dissolution of the solid basic compound at a time of heating, heat curability in a short time is realized.

Abstract: A liquid ejection head includes a substrate having an ejection opening through which a liquid is ejected, a recessed member having a wall defining a recess in which the substrate is disposed away from the wall with a gap therebetween, and a sealing member filling the gap. The sealing member includes a cured product of a composition containing a first polyol compound, an isocyanate compound having an isocyanate group, and a second polyol compound that is more reactive with the isocyanate group than the first polyol compound.

Abstract: A liquid ejection head includes a substrate having an ejection opening through which a liquid is ejected, a recessed member having a wall defining a recess in which the substrate is disposed away from the wall with a gap therebetween, and a sealing member filling the gap. The sealing member includes a cured product of a composition containing a first polyol compound, an isocyanate compound having an isocyanate group, and a second polyol compound that is more reactive with the isocyanate group than the first polyol compound.

Abstract: An object of the present invention is to provide an identification method for a macrophage subtype using an organic compound. Another object of the present invention is to provide a macrophage identification agent containing an organic compound in which a spectral characteristic obtained when the organic compound is added is different depending on a macrophage subtype. Still another object of the present invention is to provide an evaluation method for a macrophage subtype using a macrophage identification agent, an analysis method for correlation between a macrophage subtype and a test substance, a screening method for correlation between a macrophage subtype and a test substance, and a kit. An identification method for a macrophage subtype utilizing that a spectral characteristic obtained with an organic compound added is different depending on a macrophage subtype is provided.

Abstract: An iron oxide particle constituting a Resovist (trademark) absorbs a small quantity of light in a near infrared region and emits a weak photoacoustic signal. According to a particle having a catechol-like compound and iron atoms, the particle having a ratio of the number of moles of the catechol-like compound to the number of moles of the iron atoms of 270/10,000 or more, light absorption in the near infrared region increases and a strong photoacoustic signal can be transmitted.

Abstract: An object of the present invention is to provide an identification method for a macrophage subtype using an organic compound. Another object of the present invention is to provide a macrophage identification agent containing an organic compound in which a spectral characteristic obtained when the organic compound is added is different depending on a macrophage subtype. Still another object of the present invention is to provide an evaluation method for a macrophage subtype using a macrophage identification agent, an analysis method for correlation between a macrophage subtype and a test substance, a screening method for correlation between a macrophage subtype and a test substance, and a kit. An identification method for a macrophage subtype utilizing that a spectral characteristic obtained with an organic compound added is different depending on a macrophage subtype is provided.

Abstract: An iron oxide particle constituting a Resovist (trademark) absorbs a small quantity of light in a near infrared region and emits a weak photoacoustic signal. According to a particle having a catechol-like compound and iron atoms, the particle having a ratio of the number of moles of the catechol-like compound to the number of moles of the iron atoms of 270/10,000 or more, light absorption in the near infrared region increases and a strong photoacoustic signal can be transmitted.

Abstract: Indocyanine green-containing particles each include a metal oxide particle or a metal particle and an aggregate of indocyanine green. The aggregate of indocyanine green has a relative maximum absorbance at 880 nm or more and 910 nm or less.

Abstract: Provided is the following indocyanine green (ICG)-containing particle to be used as, for example, a contrast agent for fluorescent imaging or photoacoustic imaging. The leakage of ICG from the particle in a serum is prevented and hence the particle can stably retain ICG. According to a particle characterized by having an aggregate of indocyanine green and a phospholipid, the leakage of ICG from the particle in a serum or the like is prevented and hence ICG can be stably retained in the particle.