 Porous ceramic slides
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 Microstructure of Poreslide |
Poreslide is a thin ceramic slide that has nano- or micro- porous surfaces.
Key Feature: The sizes of nano-pores in Poreslides are comparable to the dimensions of the molecules, therefore the molecules can be trapped or immobilised in the porous structure at the surface of the Poreslides. Different pore sizes can accommodate different chemical species and bio-species for various applications.
General: Until now there have been only glass slides for applications in chemistry. Plain glass slides have impervious surfaces that allow any chemical to be spread over it and washed away conveniently. However, when a chemist or bio-scientist wants to immobilise or fix a chemical on a slide, the plain glass slides are clearly not suitable. The Poreslides with nano or micro porous surface structure can satisfy such requirements. The Poreslide containing a specific chemical can, for example, be immersed in another chemical solution, or exposed in a gas, for a deliberate reaction. After such a reaction, the slide is conveniently examined for the result of the reaction. Several fast analysis and screening methods have been successfully established with our Poreslides.
Over the last five years, as a result of rapid development in nanotechnology, HP Technical Ceramics have invented a series of ceramic substrates that have two-dimensional micro- or nano- porous structures. The pores have narrow size distributions, e.g. from 15 to 40 nm. The Poreslides, which are essentially novel nano-materials, provide simple and new ways for chemical processes.
Functions: The Poreslides meet the requirements of chemistry where one or more of the following functions are needed:
· Fixing or immobilising chemicals on to a reaction base.
· Storing a wet chemical in a solid surface with high surface area.
· The porous structure increases the surface areas by many folds, which can enhance a chemical reaction.
· The high surface area enhances the expression of reaction result.
· The Poreslides containing chemicals can be conveniently exposed in a reacting gas or immersed in a reacting solution for a chemical process.
· Like a normal glass slide, the Poreslide can be examined with a microscope, X-ray and scanning electron microscope.
· For certain application, expression of a chemical process may be detected as an optical (such as florescence) or magnetic signal.
· Using different pore sizes to trap different chemical species, including protein purification.
· Different Poreslides have different surface structures that chemical species travel through capillary action with different speeds. One can establish his own surface chromatography for a specific application.
General Properties:
· Poreslides are made of SiO2, Al2O3, ZrO2 and other inert oxides.
· Various pore size ranges to suit different applications.
· Interconnected pore structure.
· Enhanced surface areas (up to 300 m2/g), hence an enhanced surface expression.
· Interconnected pores can be regionalized, so that the chemical immobilised in one region does not defuse into other regions that may contain different chemicals for other functions.
· Narrow pore size distribution.
· The porous ceramic membrane structure is chemically durable, resistant in acid and alkaline conditions.
· The porous structure is stable to high temperature up to 1000oC, for easy cleaning and sterilisation.
· Both the porous structures and geometry of the Poreslides can be customised to suit specific applications.
Applications:
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Chemical reaction bed & Miniature surface reactor
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Miniaturized chemical support for quantitative and qualitative analysis
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Supports for chemical indicators & trace chemical detectors
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Supports for chemical trap through selective bonding & adsorption
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Surface chromatography
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High performance bio catalyst immobilisation bed (e.g. enzymes)
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Micro-chemical store (chemical array & DNA array)
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Chemical expression substrate.
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Chemical and bio sensors.
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DNA Chips, medical diagnosis and analysis kit
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High performance biocatalyst immobilisation for drug screening
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Forensic detecting devises
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Environmental monitoring devices
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Micro-blood sampling and storage
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Micro-platform for bio-fluid analysis including blood
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Micro-platform for drug function or performance analysis.
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Tissue engineering substrate
If you have a novel application in mind, please contact us.