CN1830908A - Method for preparing composite carrier material contg, nanometer porous glass and aluminium oxide ceramic substrate - Google Patents
Method for preparing composite carrier material contg, nanometer porous glass and aluminium oxide ceramic substrate Download PDFInfo
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- CN1830908A CN1830908A CN 200610018699 CN200610018699A CN1830908A CN 1830908 A CN1830908 A CN 1830908A CN 200610018699 CN200610018699 CN 200610018699 CN 200610018699 A CN200610018699 A CN 200610018699A CN 1830908 A CN1830908 A CN 1830908A
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Abstract
A composite nanopore glass-alumina ceramic substrate carrier material is prepared through preparing nanopore glass, pulverizing, preparing transition layer, combining said powder with alumina ceramic substrate, heat treating and etching. It can be used for storing a lot of biologic specimens and chemical specimens.
Description
Technical field
The present invention relates to a kind of method that the nano aperture dot matrix is arranged solid support material that on aluminium oxide ceramic substrate, prepares.
Background technology
21 century is the century of life science, and the biotechnology application aspect medical diagnosis is tending towards ripe gradually.Meanwhile, relevant biological and chemical device technique has also obtained development fast, as biosensor, biology information technology, chemical sensor etc.Just become whole world life science worker common problem yet how to go to study the function that numerous gene like this and protein born in vital process, biochip arises at the historic moment under such background just.
Along with biotechnology and engineered fast development, be badly in need of a kind of solid support material (substrate) of microcosmic ordered arrangement, but its fixed biologically chemical sample, the substrate of microcosmic ordered arrangement will have following performance and size characteristic simultaneously:
1, substrate should be prepared by inert material, has suitable physical strength (breaking tenacity is greater than 40MPa) simultaneously, and size is less.
2, on substrate, can prepare independently porous dot matrix arrangement.
3, each dot matrix is arranged and is had up to a million nanoporouss, can store or isolate the biological chemistry sample.
4, the controllable size system in hole is to satisfy the needs that different researchs are used.
5, the shape of substrate is easy to design and makes, to reduce preparation cost.
Summary of the invention
The object of the present invention is to provide the big nanometer porous glass of a kind of intensity height, microcosmic ordered arrangement, storage capacity and the preparation method of aluminium oxide ceramic substrate composite carrier.
The object of the present invention is achieved like this: the preparation method of a kind of nanometer porous glass and aluminium oxide ceramic substrate composite carrier comprises the following steps:
1) nanoporous substrate glass preparation; 2) nanoporous substrate glass powdered preparation; 3) transition layer preparation; 4) nanoporous substrate glass powder and aluminium oxide ceramic substrate are compound; 5) thermal treatment and erosion.
The nanoporous substrate glass preparation of described step 1): getting glass system is SiO
2-B
2O
3-Na
2O, its weight percent is respectively 64.0-74.0,20.0-27.0,4.0-11.0; Outer doping, additive are TiO
2, ZrO
2In any one or two kinds of mixing, TiO
2, ZrO
2Addition be respectively 0-2.0%, the 0-2.0% of glass system weight, by mixing after the proportioning weighing, 1450-1520 ℃ of fusing, moulding down, 420～460 ℃ of annealing, the nanoporous substrate glass; The preparation of nanoporous substrate glass powder described step 2): the pulverizing of nanoporous substrate glass is the powder of granular size 38～74 μ m (200-400 order); The transition layer preparation of described step 3): adopting concentration is the water glass colloidal sol of 0.5～1mol/L, and coating thickness is the transition layer of 100-200nm on aluminium oxide ceramic substrate; The nanoporous substrate glass powder of described step 4) is compound with aluminium oxide ceramic substrate: nanoporous substrate glass powder is mixed by weight 100: 1～50: 1 scope with binding agent polyvinyl alcohol (PVA), with extrusion process with mixture with scribble the aluminium oxide ceramic substrate moulding of transition layer, forming pressure is 3-6MPa, composite base plate after the moulding is at 1100-1300 ℃ of sintering 10-60min, temperature rise rate 5-10 ℃/min; The thermal treatment of described step 5) and erosion: the composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 580-710 ℃ of thermal treatment 6-48h
4Among the Cl, its concentration is respectively 1～2mol/L and 0.1～0.2mol/L, mixes in 1: 1 by volume, acid treatment 12～48h in 85～97 ℃ of oil bath pans, distilled water cleans, and behind 120 ℃ of dry 24h, forms nanometer porous glass and aluminium oxide ceramic substrate composite carrier.
Described TiO
2, ZrO
2Optimum addition be respectively 0.5-2.0%, the 0.5-2.0% of glass system weight.
The present invention is baseplate material with the alumina-ceramic, behind its surface-coated water glass colloidal sol transition layer, mixture with glass powder and binding agent polyvinyl alcohol adopts extrusion process again, sintering after pressing certain aligning method moulding on the baseplate material, then with the composite carrier behind the sintering heat-treat under the suitable temp, after the acid attack, the glass powder that applies can form has nano level aperture, by control thermal treatment temp, time, acid corrosion parameter, can make pore structure connection or independent, its aperture can be adjustable in the 10-100 nanometer range simultaneously.Select the ratio of glass powder in different arrangement modes and glass powder and the binding agent polyvinyl alcohol mixture, can realize the storage density of composite carrier, thereby reach the composite carrier of different pore sizes of preparation and storage density.
It is substrate that the present invention proposes with the alumina-ceramic, and nanoporous substrate glass powder and aluminium oxide ceramic substrate are compound, combines the advantage of glass and pottery.Biggest advantage is: intensity height, extensive, little manufacturing, microcosmic ordered arrangement; On the unit surface of composite carrier (chip), can detect multiple disease simultaneously or analyze multiple biological specimen, but and storage capacity big; And advantages such as its fluorescence background is low, low cost of manufacture, application convenience; Tolerate the erosion of some reagent in synthesis cycle and the test experience simultaneously, can not cause coming off of sample, can be used for fixing or isolation biological chemistry sample, satisfy the needs of biotechnology research and the development of other related discipline.Open up new application approach again for compound science, the development of related science and the progress of industry are had great importance.
Description of drawings
Fig. 1 is a process flow sheet of the present invention
Fig. 2 is the structural representation of nanometer porous glass and aluminium oxide ceramic substrate composite carrier
Among the figure: 1-nanoporous substrate glass powder and polyvinyl alcohol mixture, 2-aluminium oxide ceramic substrate.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1: as shown in Figure 1, the preparation method of a kind of nanometer porous glass and aluminium oxide ceramic substrate composite carrier comprises the following steps:
Getting glass system is SiO
2-B
2O
3-Na
2O, its weight percent is respectively 64,27,9; , by mixing after the proportioning weighing.With the compound fusing, 1450 ℃ of temperature of fusion, the glass metal that homogenizing is good is annotated becomes blank in the shaping mould, 460 ℃ of annealing, get the nanoporous substrate glass.Adopt the water glass colloidal sol of concentration 0.8mol/L, coating thickness is the transition layer of 100nm on aluminium oxide ceramic substrate, gets sample 2.The nanoporous substrate glass for preparing is pulverized, is got granular size powder between 38～74 μ m, with binding agent polyvinyl alcohol (PVA) by weight 100: 1 thorough mixing, sample 1.Sample 1 is used the extrusion process moulding above being positioned at the transition layer of sample 2, and forming pressure is 4MPa, and the composite base plate after the moulding is warming up to 1200 ℃ of sintering 30min with 10 ℃/min of temperature rise rate.Composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 680 ℃ of thermal treatment 12h
4Among the Cl, its concentration is respectively 2mol/L and 0.1mol/L mixed acid treatment 24h in 95 ℃ of oil bath pans in 1: 1 by volume.Corrode the back and clean with distilled water, can make nanometer porous glass and aluminium oxide ceramic substrate composite carrier behind 120 ℃ of dry 24h, its structure as shown in Figure 2.
Embodiment 2: a kind of nanometer porous glass and aluminium oxide ceramic substrate compound solid support material preparation method comprise the following steps:
Getting glass system is SiO
2-B
2O
3-Na
2O, its weight percent is respectively 74,20,6; Getting additive is TiO
2, TiO
2Addition be 1.0% (adding) of glass system weight, by mixing after the proportioning weighing.With the compound fusing, 1500 ℃ of temperature of fusion, the glass metal that homogenizing is good is annotated becomes blank in the shaping mould, 460 ℃ of annealing, get the nanoporous substrate glass.Adopt the water glass colloidal sol of concentration 1.0mol/L, coating thickness is the transition layer of 150nm on aluminium oxide ceramic substrate, gets sample 2.The nanoporous substrate glass for preparing is pulverized, is got granular size powder between 38～74 μ m, with binding agent polyvinyl alcohol (PVA) by weight 80: 1 thorough mixing, sample 1.Sample 1 is used the extrusion process moulding above being positioned at the transition layer of sample 2, and forming pressure is 5MPa, and the composite base plate after the moulding is warming up to 1250 ℃ of sintering 20min with 10 ℃/min of temperature rise rate.Composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 710 ℃ of thermal treatment 12h
4Among the Cl, its concentration is respectively 2mol/L and 0.2mol/L mixed acid treatment 12h in 90 ℃ of oil bath pans in 1: 1 by volume.Corrode the back and clean, can make nanometer porous glass and aluminium oxide ceramic substrate composite carrier behind 120 ℃ of dry 24h with distilled water.
Embodiment 3: a kind of nanometer porous glass and aluminium oxide ceramic substrate compound solid support material preparation method comprise the following steps:
Getting glass system is SiO
2-B
2O
3-Na
2O, its weight percent is respectively 70,19,11; Get additive ZrO
2, ZrO
2Addition be 2.0% (adding) of glass system weight, by mixing after the proportioning weighing.With the compound fusing, 1510 ℃ of temperature of fusion, the glass metal that homogenizing is good is annotated becomes blank in the shaping mould, 450 ℃ of annealing, get the nanoporous substrate glass.Adopt the water glass colloidal sol of concentration 1.0mol/L, coating thickness is the transition layer of 150nm on aluminium oxide ceramic substrate, gets sample 2.The nanoporous substrate glass for preparing is pulverized, is got granular size powder between 38～74 μ m, with binding agent polyvinyl alcohol (PVA) by weight 80: 1 thorough mixing, sample 1.Sample 1 is used the extrusion process moulding above being positioned at the transition layer of sample 2, and forming pressure is 5MPa, and the composite base plate after the moulding is warming up to 1150 ℃ of sintering 20min with 10 ℃/min of temperature rise rate.Composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 650 ℃ of thermal treatment 12h
4Among the Cl, its concentration is respectively 1.0mol/L and 0.1mol/L mixed acid treatment 8h in 90 ℃ of oil bath pans in 1: 1 by volume.Corrode the back and clean, can make nanometer porous glass and aluminium oxide ceramic substrate composite carrier behind 120 ℃ of dry 24h with distilled water.
Embodiment 4: a kind of nanometer porous glass and aluminium oxide ceramic substrate compound solid support material preparation method comprise the following steps:
Getting glass system is SiO
2-B
2O
3-Na
2O-TiO
2, its weight percent is respectively 74,20,6; Getting additive is TiO
2And ZrO
2, TiO
2, ZrO
2Addition be respectively 1.0%, 0.75% (adding) of glass system weight, by mixing after the proportioning weighing.With the compound fusing, 1520 ℃ of temperature of fusion, the glass metal that homogenizing is good is annotated becomes blank in the shaping mould, 420 ℃ of annealing, get the nanoporous substrate glass.Adopt the water glass colloidal sol of concentration 0.5mol/L, coating thickness is the transition layer of 180nm on aluminium oxide ceramic substrate, gets sample 2.Prepared nanoporous substrate glass is pulverized, is got granular size powder between 38～74 μ m, with binding agent polyvinyl alcohol (PVA) by weight 60: 1 thorough mixing, sample 1.Sample 1 is used the extrusion process moulding above being positioned at the transition layer of sample 2, and forming pressure is 3MPa, and the composite base plate after the moulding is warming up to 1300 ℃ of sintering 15min with 10 ℃/min of temperature rise rate.Composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 650 ℃ of thermal treatment 48h
4Among the Cl, its concentration is respectively 1mol/L and 0.2mol/L mixed acid treatment 48h in 95 ℃ of oil bath pans in 1: 1 by volume.Corrode the back and clean, can make nanometer porous glass and aluminium oxide ceramic substrate composite carrier behind 120 ℃ of dry 24h with distilled water.
Claims (3)
1. the preparation method of nanometer porous glass and aluminium oxide ceramic substrate composite carrier is characterized in that comprising the following steps:
1) nanoporous substrate glass preparation; 2) nanoporous substrate glass powdered preparation; 3) transition layer preparation; 4) nanoporous substrate glass powder and aluminium oxide ceramic substrate are compound; 5) thermal treatment and erosion.
2. the preparation method of a kind of nanometer porous glass according to claim 1 and aluminium oxide ceramic substrate composite carrier, it is characterized in that the nanoporous substrate glass preparation of described step 1): getting glass system is SiO
2-B
2O
3-Na
2O, its weight percent is respectively 64.0-74.0,20.0-27.0,4.0-11.0; Outer doping, additive are TiO
2, ZrO
2In any one or two kinds of mixing, TiO
2, ZrO
2Addition be respectively 0-2.0%, the 0-2.0% of glass system weight, by mixing after the proportioning weighing, 1450-1520 ℃ of fusing, moulding down, 420～460 ℃ of annealing, the nanoporous substrate glass; The preparation of nanoporous substrate glass powder described step 2): the pulverizing of nanoporous substrate glass is the powder of granular size 38～74 μ m; The transition layer preparation of described step 3): adopting concentration is the water glass colloidal sol of 0.5～1mol/L, and coating thickness is the transition layer of 100-200nm on aluminium oxide ceramic substrate; The nanoporous substrate glass powder of described step 4) is compound with aluminium oxide ceramic substrate: nanoporous substrate glass powder is mixed by weight 100: 1～50: 1 scope with the binding agent polyvinyl alcohol, with extrusion process with mixture with scribble the aluminium oxide ceramic substrate moulding of transition layer, forming pressure is 3-6MPa, composite base plate after the moulding is at 1100-1300 ℃ of sintering 10-60min, temperature rise rate 5-10 ℃/min; The thermal treatment of described step 5) and erosion: the composite base plate behind the sintering places composite base plate mixing acid HCl+NH then at 580-710 ℃ of thermal treatment 6-48h
4Among the Cl, its concentration is respectively 1～2mol/L and 0.1～0.2mol/L, mixes in 1: 1 by volume, acid treatment 12～48h in 85～97 ℃ of oil bath pans, distilled water cleans, and behind 120 ℃ of dry 24h, forms nanometer porous glass and aluminium oxide ceramic substrate composite carrier.
3. the preparation method of a kind of nanometer porous glass according to claim 2 and aluminium oxide ceramic substrate composite carrier is characterized in that described TiO
2, ZrO
2Addition be respectively 0.5-2.0%, the 0.5-2.0% of glass system weight.
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| CNB200610018699XA CN100418928C (en) | 2006-04-04 | 2006-04-04 | Method for preparing composite carrier material contg, nanometer porous glass and aluminium oxide ceramic substrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875136A (en) * | 2012-11-05 | 2013-01-16 | 上海师范大学 | Recovery method of mullite and recovery preparation of mullite |
| CN104064478A (en) * | 2014-06-24 | 2014-09-24 | 南京航空航天大学 | Preparation method for copper/aluminium nitride ceramic composite heat-conductive substrate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003903295A0 (en) * | 2003-06-30 | 2003-07-10 | Raustech Pty Ltd | Substrate for combinatorial chemistry |
| CN2699279Y (en) * | 2004-04-16 | 2005-05-11 | 武汉理工大学 | Carrier for securing biological samples |
| CN1262500C (en) * | 2004-04-16 | 2006-07-05 | 武汉理工大学 | Method for preparing microcrystalline glass/glass carrier material having nano holes in high density |
-
2006
- 2006-04-04 CN CNB200610018699XA patent/CN100418928C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875136A (en) * | 2012-11-05 | 2013-01-16 | 上海师范大学 | Recovery method of mullite and recovery preparation of mullite |
| CN104064478A (en) * | 2014-06-24 | 2014-09-24 | 南京航空航天大学 | Preparation method for copper/aluminium nitride ceramic composite heat-conductive substrate |
| CN104064478B (en) * | 2014-06-24 | 2016-08-31 | 南京航空航天大学 | A kind of manufacture method of copper/aluminium nitride ceramics composite heat-conducting substrate |
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| CN100418928C (en) | 2008-09-17 |
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