The present invention provides heteroatom-doped nanodiamond particles having a fluorescence emission peak derived from the Si-Vacancy (Si-V) center and satisfying the following conditions: (i) when 1 ?L of an aqueous suspension of 1 mass% of said particles is added dropwise onto a glass substrate, and fluorescence spectra at 101×101 points with a spatial resolution of 1 ?m and in a sample range of 100 ?m×100 ?m are acquired using a microscopic Raman device, the proportion of the number of bright spots that emit fluorescence having a ZPL peak at ZPL±X nm (0?X?5) of the heteroatom-V center is at least 50%; and (ii) the average size of primary particles is 2-70 nm.
[Problem] To provide an isolation and purification method for isolating and purifying extracellular vesicles. [Solution] An isolation and purification method of extracellular vesicles, said method being for obtaining a concentrated solution having an increased concentration of extracellular vesicles by a filtration process using a hollow fiber membrane, wherein: the hollow fiber membrane has an inner diameter of 0.2-1.4 mm and a fractional molecular weight of 100,000-1,000,000; the filtration process uses alternating tangential flow filtration, which includes a first filtration step for pressurizing a mesenchymal stem cell culture supernatant solution through a first opening at one end of the hollow fiber membrane, filtering and thus separating into a permeate and a first concentrated solution, and a second filtration step for pressurizing the first concentrated solution through a second opening at the other end of the hollow fiber membrane, filtering and thus separating into a permeate and a second concentrated solution, and in which the first and second filtration steps are alternately performed multiple times; and the membrane surface velocity in the first and second filtration steps is 0.3-2 m/sec.
C12N 1/00 - Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
[Problem] To provide a method for separating and purifying a minute useful substance. [Solution] A method for separating and purifying a minute useful substance involves filtering a liquid containing the minute useful substance by means of a hollow fiber membrane which has an inner diameter of 0.2-1.4 mm and a molecular weight cut-off of 100,000-1,000,000, wherein: the filtering process comprises a first filtering step for pressing and filtering the liquid containing the minute useful substance from a first opening on one end side of the hollow fiber membrane and separating the liquid into a permeate and a first concentrate, and a second filtering step for pressing and filtering the first concentrate from a second opening on the other end side of the hollow fiber membrane, and separating the first concentrate into a permeate and a second concentrate; and a concentrate having an increased concentration of the minute useful substance is obtained by filtration in which the first filtering step and the second filtering step are alternately carried out multiple times at a membrane surface rate of 0.3-2 m/sec.
B01D 69/00 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
This thermoplastic resin composition contains a cellulose ester, a polyester, and a plasticizer. The number average molecular weight of the plasticizer is no higher than 1000. The amount of the polyester is no more than 120 parts by weight per 100 parts by weight of the cellulose ester. The amount of the plasticizer is less than 100 parts by weight per 100 parts by weight of the cellulose ester.
The present invention provides a temperature-sensitive probe containing a group 14 element-doped nanodiamond having an average particle size of 1 to 100 nm and including SiV centers.
In this cellulose acetate, the total degree of acetyl substitution is from 1.75 to 2.55 and the degree of 2-position acetyl substitution and/or 3-position acetyl substitution is 0.7 or less. This cellulose acetate composition includes this cellulose acetate and additives. The additives are one or more selected from the group consisting of (a) substances a 1 wt% aqueous solution of which at 20°C has a pH of 8 or higher, (b) substances 2 wt% or more of which dissolves in 20°C water, and (c) substances that are biodegradable in seawater.
A partitioning member (40) for a total heat exchange element includes a sheet-shaped porous base (41) and a moisture permeable membrane (42) provided on the porous base (41). The moisture permeable membrane (42) contains a functional material (46) producing at least one of an antifungal effect, an antibacterial effect, or an antiviral effect.
F24F 7/08 - Ventilation with ducting systems with forced air circulation, e.g. by fan with separate ducts for supplied and exhausted air
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28F 3/00 - Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
F28F 13/18 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by surface treatment, e.g. polishing
F28F 21/00 - Constructions of heat-exchange apparatus characterised by the selection of particular materials
This cellulose acetate resin composition comprises (A) cellulose acetate having a total degree of acetyl substitution of 2.60 or less, (B) a filler and (C) a plasticizer. The filler (B) is selected from the group consisting of (b1) a specific inorganic compound, (b2) a specific metal salt, (b3) cellulose or hemicellulose, and (b4) a wood powder. The plasticizer (C) is selected from (c1) a glycerin ester-based plasticizer, (c2) an ether-based plasticizer and (c3) a glycol ester-based plasticizer. The content of the component (A) is 45 to 90% by mass. The total content of the component (B) is 5 to 50% by mass. The total content of the component (C) is 5 to 35% by mass.
A laminate body which has low air permeability and excellent moisture permeability, a partition member for total heat exchange elements which comprises said laminate body, a total heat exchange element which is provided with a plurality of said partition members for total heat exchange elements, and a ventilation device which is provided with said total heat exchange element are provided. This laminate body is characterized by being provided with a porous substrate and a moisture-permeable membrane disposed on one surface of the porous substrate, wherein the moisture-permeable membrane is provided with a porous substrate and a moisture-permeable membrane disposed on at least one surface of the porous substrate, and the moisture-permeable membrane is formed from a thermoplastic copolymer having a side chain containing a hydrophilic group as a functional group.
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
F24F 7/08 - Ventilation with ducting systems with forced air circulation, e.g. by fan with separate ducts for supplied and exhausted air
F28F 3/00 - Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F 3/08 - Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
Provided is a method for efficiently generating hydrogen by using a renewable resource as a raw ingredient. [Solution] A hydrogen production method according to the present disclosure generates hydrogen from a sugar in the presence of a solvent and the catalyst described below. Catalyst: Contains at least one metal element selected from group 8, group 9, and group 10. A complex or salt of the metal element is preferable as the catalyst; in particular, a complex comprising at least one metal element selected from group 8, group 9, and group 10 and at least one ligand selected from a pentamethylcyclopentadienyl, a cyclopentadienyl, p-cymene, and 1,5-cyclooctadiene is preferable. The use of at least one selected from organic acids and ionic liquids is preferable for the solvent. The sugar may be a lignin-sugar complex, and cellulose is preferable as the sugar.
The present invention provides a heteroatom-doped nanodiamond, which has been doped with at least one species of heteroatom and meets the requirements of (i) and/or (ii): (i) The BET specific surface area is 20 to 900 m2/g. (ii) The primary particle mean size is 2 to 70 nm.
The present invention provides an explosive composition containing at least one explosive and at least one heteroatom compound, the heteroatom compound including at least one type of heteroatom selected from the group consisting of B, P, Si, S, Cr, Sn, Al, Ge, Li, Na, K, Cs, Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Ta, Mo, W, Mn, Ni, Cu, Ag, Cd, Hg, Ga, In, Tl, As, Sb, Bi, Se, Te, Co, Xe, F, Y, and lanthanoids.
The present invention provides a method for producing nanodiamonds doped with a Group 14 element which includes: a detonation step for obtaining nanodiamonds which have been doped with one or more Group 14 elements selected from the group consisting of Si, Ge, Sn and Pb by causing the explosion in a sealed container of an explosive composition which contains one or more types of explosives and one or more Group 14 element compounds; and a step for removing the Group 14 element and/or oxide thereof by subjecting the nanodiamonds which have been doped with a Group 14 element to an alkali treatment.
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
DAICEL CORPORATION (Japan)
Inventor
Miyako, Eijiro
Yu, Yue
Nishikawa, Masahiro
Liu, Ming
Tei, Takahiro
Abstract
The present invention provides a nanocluster which is composed of self-assembled carbon nanomaterials that are modified with higher alkyl groups or higher alkenyl groups.
B82Y 5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y 40/00 - Manufacture or treatment of nanostructures
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
DAICEL CORPORATION (Japan)
Inventor
Miyako, Eijiro
Yu, Yue
Nishikawa, Masahiro
Liu, Ming
Tei, Takahiro
Abstract
The present invention provides an optically heat-generating composite material which is represented by formula (I) CNM-(Y1-R)n1 (wherein CNM represents a carbon nanomaterial; Y1 represents a divalent linking group; R represents a group derived from a fluorescent substance or a pigment; and n1 represents an integer of 1 or more).
A61K 45/00 - Medicinal preparations containing active ingredients not provided for in groups
A61K 47/52 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an inorganic compound, e.g. an inorganic ion that is complexed with the active ingredient
Provided is a polyoxyalkylene chain surface-modified nanodiamond demonstrating excellent productivity and excellent safety during production. This surface-modified nanodiamond contains a nanodiamond particle and a surface-modification group having a polyoxyalkylene chain and a silicon atom for modifying the surface of the nanodiamond particle. This nanodiamond dispersion composition contains a dispersion medium and the surface-modified nanodiamond dispersed in the dispersion medium.
The present invention provides a fluorescent diamond containing a fluorescent MV center (M is a metal or metalloid, and V represents a hole) at a concentration of at least 1×1014/cm3.
C09K 11/66 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing germanium, tin or lead
Provided is an electrolyte composition containing iodine (A), a sulfur compound (B) other than an organic salt, and a basic nitrogen compound (C). With respect to the electrolyte composition, the luminous transmittance of light having a wavelength of 400 nm in an optical path length of 1 cm may be 30% or more. The sulfur compound (B) may be at least one component selected from the group consisting of a thiol, a sulfide and a disulfide (particularly a thiol having a linear or cyclic alkane backbone, such as a linear or branched C4-18 alkanethiol). The basic nitrogen compound (C) may be an amine (particularly a pyridine compound). The content ratio of the sulfur compound (B) may be about 0.1- to 2-fold moles relative to the amount of the basic nitrogen compound (C). The electrolyte composition may additionally contain a iodide salt (D). The electrolyte composition may be an electrolytic solution for a dye-sensitized solar cell. The electrolyte composition can be prepared easily, and has high transparency and is rarely discolored even when an iodine is contained.
NATIONAL UNIVERSITY CORPORATION KOCHI UNIVERSITY (Japan)
DAICEL CORPORATION (Japan)
Inventor
Miyata, Tsuyoshi
Oshima, Syun-Ichirou
Kato, Motomi
Miki, Katsuya
Iwatani, Masao
Fujisawa, Suguru
Abstract
An object of the present invention is to provide a system for monitoring a cardiac condition of a fish wherein the system comprises: a container and a processor, wherein the container is provided with a plurality of detectors on an inner wall surface of said container, and has a space where the fish can swim on an opposite side from said detectors side as viewed from the fish in said container, the processor includes: an acquisition section that acquires photoelectric pulse waves in a plurality of areas of the fish under signal synchronization in time sequence for a specified detection period via measurement equipment having the detectors; and an extraction section that extracts a portion reflecting the photoelectric pulse wave in a heart area of the fish the most from the photoelectric pulse waves in the areas that are acquired in the detection period.
Provided is a composition that can form a photoelectric conversion layer having superior adhesion to a substrate without requiring a sintering step. The composition is configured from at least a semiconductor (for example, titanium oxide particles) and an ionic polymer (for example, a fluororesin having a sulfo group, or the like) and the fraction of the ionic polymer is 0.1-30 parts by weight for every 1 part by weight of the semiconductor. The composition may further contain a dye (sensitizing dye). A photoelectric conversion layer can be formed without sintering a semiconductor by means of the composition coating a conductive substrate.
Provided is a composition that can form a photoelectric conversion layer provided with electricity-storing functionality. The composition is configured from at least a semiconductor (for example, titanium oxide particles) and an ionic polymer (for example, a fluororesin having sulfo groups, or the like), and the fraction of the ionic polymer is at least 0.05 parts by weight for every 1 part by weight of the semiconductor. The composition may further contain a dye (sensitizing dye). An electrode provided with a photoelectric conversion layer formed from the composition can configure a photoelectric conversion element provided with superior electricity-storing functionality, particularly in a combination with an electrode having a porous layer.
[Problem] To provide a cigarette filter that can achieve both strength when dry and disintegrability when wet. [Solution] This cigarette filter comprises a filter plug including short cellulose ester fibers, pulp, and an alkali metal salt of a water-soluble anionic polymer. The alkali metal content in said filter plug is 2-100 µmol per 1 g of said filter plug. Said water-soluble anionic polymer may be at least one type of compound selected from polyacrylic acids and polysaccharides having a carboxyl group.
patents
