Abstract:
A method for manufacturing a divanadium pentaoxide nano wire thin film with improved alignment is provided to conveniently cut manufactured nano wires in order to secure reproducibility and characteristic of devices. A method for manufacturing a divanadium pentaoxide nano wire thin film comprises the following steps of: preparing a divanadium pentaoxide nano wire(V2O5 nano-wire) solution; diluting the solution in water and inputting the diluted solution into the Langmuir-Blodgett trough; adding a dispersing agent to the diluted solution; diluting a halogenated dioctadecyl dimethylammonium solution in an organic solvent and coating the diluted halogenated dioctadecyl dimethylammonium solution on the surface of the diluted solution prepared in previous step; adjusting the interface pressure of the halogenated dioctadecyl dimethylammonium solution by using a barrier in the Langmuir-Blodgett trough; fixing a substrate on a dipping rod of the Langmuir-Blodgett trough and contacting the substrate with the interface of the halogenated dioctadecyl dimethylammonium solution; and separating the substrate from the dipping rod.
Abstract:
This invention relates to method and system for forming a film. The method including providing a trough containing water defining an air-water interface between air and the water; providing a solution containing a material of interest; and electrospraying the solution onto the air-water interface of water to form a film of the material of interest at the air-water interface. The system includes a trough containing water defining an air-water interface between air and the water; and means for spreading a solution containing a material of interest onto the air-water interface of water by electrospray, to form a film of the material of interest at the air-water interface. The spreading means comprises an electrospraying device.
Abstract:
L'invention concerne un procédé de fabrication d'une colonne d'enrichissement de chromatographie. Le procédé de l'invention comprend les étapes de : a) dépôt d'au moins une couche des particules voulues, identiques ou différentes, destinées à constituer la phase stationnaire, en assemblage compact, sur la surface plane d'un support, b) réticulation de ladite couche dans au moins les zones correspondant à la forme voulue de la colonne d'enrichissement à obtenir, c) imprégnation de ladite couche avec un matériau sensible à un rayonnement lumineux, d) insolation de la couche obtenue à l'étape c) pour former des zones insolées dont la forme correspond à la forme interne voulue de la colonne d'enrichissement, lorsque le matériau sensible à un rayonnement lumineux se comporte comme une résine positive ou pour former des zones non insolées dont la forme correspond à la forme interne voulue de la colonne d'enrichissement lorsque le matériau sensible à un rayonnement lumineux se comporte comme une résine négative, et e) élimination du matériau sensible à un rayonnement lumineux dans les zones correspondant à la forme interne de la colonne d'enrichissement. L'invention trouve application dans le domaine de l'analyse chimique, en particulier.
Abstract:
The invention provides materials and methods for forming coatings on substrates. The coatings are durable and resistant to damage from environmental, chemical, thermal, and/or radiative sources. In some embodiments, the coatings comprise bilayers of electrostatically charged materials. The bilayers are created by alternately applying solutions comprising water-soluble, electrostatically charged materials. Durability is imparted to the coatings by the formation of crosslinks that are formed within and between layers after deposition of the coatings
Abstract:
The present invention relates to a method for attaching nanomaterials by using a Langmuir- Blodgett method, wherein a Langmuir-Blodgett (LB) film, which is comprised of nanomaterials, is formed from a dispersed solution where the nanomaterials are stably dispersed in a volatile organic solvent, and then the nanomaterials of the LB film are transferred to a substrate or a holder. The method according to the present invention may be desirably applied to fabrication of a nanopattern structure, or manufacture of a probe, as a mechanical and electric device, for detecting signals such as surface or chemical signals.
Abstract:
A method and an apparatus (10) for making thin layers from particles, wherein the particles are deposited on a carrier fluid flowing by gravity along a ramp (12) leading to a dam (18). The particles are held back at the bottom of the ramp (12), thereby causing the particles to be piled up one against the other in a monolayer configuration.
Abstract:
A method for the self assembly of a macroscopic stucture with a pre-formed nano object is provided. The method includes processing a nano object to a desired aspect ratio and chemical functional ity and mixing the processed nano object with a solvent to form a suspension. Upon formation of the suspension, a substrate is inserted into the suspension. By either evaporation of the solvent, changing the pH value of the suspension, or changing the temperature of the suspension, the nano objects within the suspension deposit onto the substrate in an orientational order. In addition, a seed crystal may be used in place of the substrate thereby forming single-crystals and fee-standing membranes of the nano-objects.
Abstract:
A gravimetric biosensor based on two quartz resonators with immobilised layers of antibodies was developed. The active oscillator is covered by antibodies specific to a given antigen, while the reference oscillator is covered by antibodies non-specific to the antigen, in order to compensate the physical absorption effects. In a second aspect the invention provides a method and instrument for depositing films of alternating monomolecular layers, which can contain monolayers of surfactant molecules and monolayers of soluble adsorbed compounds. The first and second aspect in combination can provide a biosensor having alternating monomolecualr layers with at least one layer being biosensitive, e.g. immunosensitive.