摘要:
A problem to be resolved by the invention resides in providing a multifunction analyzing apparatus for detecting a shape with high resolution and physical property information capable of not only successively reading a base arrangement from end to end but also specifying a position hybridized by known RNA with regard to a single piece of DNA elongated in one direction on a board. A microscope system of the invention is provided with a fluorescence microscope, a scanning near field microscope and a scanning probe microscope as a detecting system, the microscopes are fixed to a switching mechanism and can be moved to a position at which the various microscopes can observe the same portion of a sample by switching operation of the mechanism. The microscope system of the invention is provided with a function capable of directly detecting a shape and physical property information of one piece of DNA by the scanning probe microscope by multifunction scanning.
摘要:
A problem to be resolved by the invention resides in providing a multifunction analyzing apparatus for detecting a shape with high resolution and physical property information capable of not only successively reading a base arrangement from end to end but also specifying a position hybridized by known RNA with regard to a single piece of DNA elongated in one direction on a board. A microscope system of the invention is provided with a fluorescence microscope, a scanning near field microscope and a scanning probe microscope as a detecting system, the microscopes are fixed to a switching mechanism and can be moved to a position at which the various microscopes can observe the same portion of a sample by switching operation of the mechanism. The microscope system of the invention is provided with a function capable of directly detecting a shape and physical property information of one piece of DNA by the scanning probe microscope by multifunction scanning.
摘要:
A signal having a resonant frequency of a cantilever is output by a first oscillator, and supplied to a vibrating element and a control unit to oscillate a probe. A low frequency signal having a large amplitude is output by a second oscillator and supplied to a piezoelectric scanning apparatus. The probe is periodically and relatively moved with respect to the sample between a position where the sample surface is penetrated by the probe and another position where the probe does not penetrate the sample surface and is outside the range of atomic forces caused by the sample. During this movement, the probe movement may be analyzed to obtain a plurality of physical characteristics about the sample, e.g., hardness information of the sample, surface shape information, information related to an adsorption layer of the sample, and information related to physical qualities (for example, electromagnetic field, adsorption force, surface reaction force, electric double layer force in fluid) irradiated from the sample surface along a depth direction.
摘要:
An internally reflective, dye sensitized, wet-type photocell suitably adaptable as a photosensitive element or a solar cell, comprising anodes and cathodes immersed in an electrolyte solution containing a reduction-oxidation agent and dye sensitizers. Each of the anodes is provided with a light inlet end adapted for the introduction of light into the interior thereof, and a surface layer portion of an n-type semiconductive substance so that light introduced through the light inlet end to the interior of the anode is reflected a plurality of times so as to absorb the energy of the light to generate a voltage. Thus, since the dye sensitizing effect is efficiently utilized, the photocell enables the conversion efficiency of photo energy to electric energy to improve sufficiently for practical uses.
摘要:
Enediyne compounds of the formula: (1) characterized in that the structure thereof is very simple and the production process is easy, and that the molecular length thereof is shorter than those of compounds having been proposed. Consequently, electrode assemblies comprising any of these enediyne compounds are highly promising in the application to nanomolecular wiring (nanomolecular wire) whose production has been difficult.
摘要:
There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole. Further, information is written and read with high density less than the wavelength of light using an apparatus for writing to and reading from an optical memory piezoelectric medium comprising the optical memory piezoelectric medium constituted by a piezoelectric element modified on the surface thereof by a photolytic residual group, an optical probe having a microscopic aperture on the leading end thereof, a light source, an X-Y-Z position control means, a means for measuring the resonance characteristics of the piezoelectric element and a controller for controlling the apparatus as a whole.
摘要:
An electrocatalyst for use in electrolytic reduction of carbon dioxide gas in an aqueous solution. The electrocatalyst is formed of nickel alkyl cyclam which is expressed by the general formula: ##STR1## where each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is selected from the group consisting of hydrogen atom and aliphatic saturated hydrocarbon group expressed by the formula of C.sub.n H.sub.2n+1 ; wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the aliphatic saturated hydrocarbon group in which n is a number ranging from 1 to 22. The nickel alkyl cyclam as the electrocatalyst is excellent in stability and energy consumption improving effect while exhibiting a high carbon dioxide gas reduction effect, as compared with conventional nickel cyclam.
摘要:
A chemically modified photoelectrochemical cell including at least one cathode and a plurality of anodes, at least said plurality of anodes being constituted with a semiconductor, each of said plurality of anodes being formed by fixing through covalent bonds molecules of at least one sensitizer dye on the surface of a light-transmissible flat plate of an n-type semiconductor or a light-transmissible flat plate covered with a thin film of an n-type semiconductor, and said plurality of anodes being disposed parallelly to each other and in the form of layers in an electrolyte solution, together with said at least one cathode. Thus, since this photoelectrochemical cell can convert photoenergy of a longer wavelength to electric energy with a high efficiency by making the use of the dye sensitization effect, sufficient practical utility to the photodevices is obtained.
摘要:
A patterning method for micro-contact printing involves the steps of: applying a resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying a molecular ink including hydrophobic molecules dispersed in a solvent on the stamp; forming micro-contact printed patterns of the hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied; dipping the substrate with micro-contact printed patterns in a hydrophilic molecule solution dispersed in a solvent to give chemical modification to the areas of the surface of the substrate around the micro-contact printed patterns, the solution including hydrophilic molecules having a chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution. According to the method, printed products having micro-contact printed patterns of a molecular level are obtained with a contrast between the micro-contact printed patterns and the area of the surface of the substrate around the micro-contact printed patterns.
摘要:
An optical scan type tunnel microscope based on a new principle, having higher resolution, is provided. The apparatus of the invention is comprised of at least an optical fiber 3 whose head portion is covered by an energy acceptor 6, a prism on which a sample which contains an energy donator 7 or is covered by the energy donator 7 is placed, a XY-axis transfer mechanism 9, XY-axis control mechanism 10, Z-axis transfer mechanism 11, Z-axis control mechanism 12, light source 13, optical system 14, and an optical detecting system 15.