摘要:
A drum type image scanning and recording apparatus, with a drum around whose cylindrical external surface a film is fixedly wrapped and a drum-driving apparatus mechanically coupled to the drum for rotating the drum, has a string tensionally stretched nearby and along the external surface of the drum in parallel with the drum axis by a string stretching device. A swing detecting device detects the swing of the string produced when part of the film and the string are in contact with each other, as when the drum is rotating and the film separates away from the drum external surface. The rotation of the drum is stopped in response to an abnormality detection signal from the swing detecting device, thus precluding significant physical separation of the film from the drum.
摘要:
Provided is: a cell culture membrane, which is free from materials derived from living organisms, can easily be industrially mass-produced, exhibits superior long-term storage properties and chemical resistance, has excellent cell adhesion properties and long-term culture properties and is capable of replicating a cell adhesion morphology that is similar to that of collagen derived from living organisms and being used for conventional cell cultivation. Also provided are a cell culture substrate, and a method for manufacturing the cell culture substrate. In the present invention, as a cell adhesion layer, a polymer membrane represented by formula (I) is formed on the base of a cell culture substrate so as to have a membrane thickness equal to or greater than 0.2 μm (in the formula, R1 and R2 represent a —(CH2)n—NH2 moiety (n is an integer of 1-10 inclusive.) or H, with at least one of R1 and R2 being a —(CH2)n—NH2 moiety. Moreover, l and m are positive integers expressing polymerization degree).
摘要:
A cell culture substrate which is durable and which can be readily produced in commercial scale at a low cost, and its production method are provided. The cell culture substrate comprises a substrate and a layer formed by surface modification, which comprises a polymer containing amino group produced by reacting a polymer represented by the following formula (II): (wherein n is 0 or a positive integer, and m is a positive integer, the n and m representing degree of polymerization) formed by chemical vapor deposition of formyl[2.2]paracyclophane represented by the following formula (I): (wherein k is 0 or 1) with a polymer having at least one amino group (—NH2) capable of forming Schiff base in its monomer. The production method of the cell culture substrate comprises the step of synthesizing such polymer on the substrate.
摘要:
A remote control system which is suitable for selective execution of any one of a plurality of functions of an automatic answering telephone apparatus by means of remote control over a telephone line. In the system, questioning speeches corresponding to the individual functions respectively are sequentially transmitted to the user of the apparatus, and the answer of the user to a specific question is detected to execute the specific function.
摘要:
A vibration detector of the seismic system comprisesa weight member;a support frame;at least two weight supporting members, each of the supporting members being fixed to the weight member at one end thereof and being substantially fixed to the support frame at one portion thereof in detecting the vibration; anda member for substantially fixing one portion to the support frame in detecting the vibration; wherein the weight member is vibratively supported by the tension of the supporting members, and at least a part of one of the supporting members is formed by a piezoelectric polymeric substance having a pair of vibration detecting electrodes, the part being at a position between the fixed end and one substantially fixed portion of the supporting member.
摘要:
A method for culturing hepatocytes, wherein hepatocytes embedded in an extracellular matrix is placed on a gas-permeable membrane and the hepatocytes are cultured while being supplied with oxygen from the gas-permeable membrane side. By this, the polarity in the hepatocytes can be induced and a bile canaliculus can be formed in a short period of time. Further, the formed polarity can be maintained for a longer period.
摘要:
Provided are a method and a device for synthesizing proteins from DNA molecules captured in microchambers, whereby the distance between microchambers can be shortened, thereby allowing the density of arrays to be increased. Microchambers (32) are arranged at a high density. A DNA solution (34) which has been diluted so as to capture one DNA molecule on average is enclosed in the microchambers (32). Then, mRNA is synthesized using one DNA molecule on average as a template. Based on this mRNA, a protein (37) is extracellularly synthesized.
摘要:
A method for culturing hepatocytes, wherein hepatocytes embedded in an extracellular matrix is placed on a gas-permeable membrane and the hepatocytes are cultured while being supplied with oxygen from the gas-permeable membrane side. By this, the polarity in the hepatocytes can be induced and a bile canaliculus can be formed in a short period of time. Further, the formed polarity can be maintained for a longer period.
摘要:
A cell culture chamber includes: a top compartment and a bottom compartment that are separated by a semi-permeable membrane inside a supporting body; a culture solution supply flow path that supplies culture solution to an interior of the bottom compartment; a culture solution discharge flow path that discharges culture solution from the interior of the bottom compartment; a circulation flow path that is used to circulate fluid within the interior of the top compartment; and a cell culturing portion is formed inside the top compartment by a sieve structure that is formed by aperture portions through which a fluid is able to pass but through which cultured cells cannot pass, and by wall portions.
摘要:
There is provided an optical system 8 for a micro analyzing system capable of precisely analyzing a sample. In the optical system 8, after light beams leaving the tip of an optical fiber 14 pass through a condensing part 13, a sample moving in a separation passage 6 due to electrophoresis is irradiated with the light beams. The condensing part 13 includes a first aspherically cylindrical surface 10 being convex toward the optical fiber 14, a second aspherically cylindrical surface 11 being convex on the opposite side to the first aspherically cylindrical surface 10, and a third aspherically cylindrical surface 12 being convex toward the second aspherically cylindrical surface 11. The first through third aspherically cylindrical surfaces 10 through 12 are arranged in that order from the side of the optical fiber 14 toward the separation passage 6. The sample moving due to electrophoresis is irradiated with light beams which are condensed by the first through third aspherically cylindrical surfaces 10 through 11 after leaving the optical fiber 14.