CN1145717A - Organism preserving technology - Google Patents
Organism preserving technology Download PDFInfo
- Publication number
- CN1145717A CN1145717A CN 96116981 CN96116981A CN1145717A CN 1145717 A CN1145717 A CN 1145717A CN 96116981 CN96116981 CN 96116981 CN 96116981 A CN96116981 A CN 96116981A CN 1145717 A CN1145717 A CN 1145717A
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- dehydration
- days
- biological sample
- silica gel
- fixing
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Abstract
The organism preserving technology includes fixation, stepped dewatering, vacuum infiltration in biological plasticizing silica gel solution comprising polydimethyl siloxane, chloroplatinic acid, compound organiosilicon modified silicane and ether and hardening shaping with organic alkoxyl silicane. All the said processes are performed at normal temp. Unlike available technology, the said one has low cost and long preservation period.
Description
What the present invention relates to is a kind of biological new technology of preserving that is used for.
The freezing cryogenic conditions of German Hagens is generally adopted in present each biological plasticized laboratory in the world, dehydration is freezing low temperature (25-30 ℃) evaporation, vacuum infiltration also carries out under-25～30 ℃ cryogenic conditions, therefore carry out the essential low temperature refrigerator of buying earlier of biological plasticized technology, investment large-scale low-temperature freezing equipment, whole plasticizing process needs long with the time, is generally 3-4 about the month.Ancient hydrometer method is then adopted in the test of acetone concentration in the dehydration, has not only bothered time-consumingly but also dangerous, can not judge the progress of dehydration fast.The vacuum infiltration process adopts and reaches 30-40 days continuous air extraction method, and vacuum equipment (especially vavuum pump) is required height, and it is many to expend the energy, and workload is big, and safety coefficient is low.Monitoring to vacuum infiltration process progress is then judged with the perusal acetone bubble situation of overflowing entirely.
The objective of the invention is to overcome the defective of above-mentioned existence, propose a kind of biological making new technology of preserving of under normal temperature condition, finishing.
Technical solution of the present invention:
Divide (1), fix, (2), dehydration, (3), vacuum infiltration, (4), hardened forming technology, wherein (1), technique for fixing are that biological sample was put into 5% formalin solution fixedly 10-20 days at normal temperatures, (2), dewatering process is that biological sample after will fixing at normal temperatures is placed in the acetone soln of different content and carries out the classification dehydration, promptly respectively dewatered in 50%, 60%, 70%, 80%, 90%, 95%, 97%, 98%, 99% acetone soln two days, dehydration is seven days in 100% acetone soln; (3), vacuum impregnation technique is with the biological sample after the dehydration at normal temperatures, input is in biological plasticized silica gel solution, adopt the discontinuous negative pressure of vacuum infiltration method of bleeding, biological plasticized silica gel is fully infiltrated, time 10-25 days, this biological plasticized silica gel composition was made up of dimethyl silicone polymer, chloroplatinic acid, composite organic modified silane, ether; (4) hardened forming technology, under normal temperature, the condition of humidity at 60-70%, unsettled shelving used the organoalkoxysilane air-set with the biological sample after fixing, dehydration, the infiltration.
Its each composition weight of biological plasticized silica gel in vacuum impregnation technique is respectively: get the 100kg example with dimethyl silicone polymer, get chloroplatinic acid 1-5kg, get composite organic modified silane 2-8kg, get ether 5-10kg, the organoalkoxysilane that is used for hardened forming technology is got 0-2kg.
Advantage of the present invention:
1. four biological plasticized basic steps (fixing, dehydration, vacuum infiltration, hardened forming) are all carried out at ambient temperature, have saved-25～30 ℃ of necessary freezing Cryo Equipments of cryogenic conditions.Thereby cost of investment is reduced significantly, and can shorten whole fusion time (from the 3-4 month shortening to the 2-3 month)
2. the progressively evaporation under the room temperature condition can guarantee that sample inside can not produce the cyto-architectural ice crystal of disorganize, and dehydrating effect is better than freezing low temperature dewatering method, (shrinkage is about 10%) dewatering time short (2-3 is about week).In addition at ambient temperature, dehydration is carried out simultaneously with degreasing, can save the essential additional degreasing time of freezing low temperature dewatering, thereby can shorten whole biological plasticized process time 1-2 week.
Embodiment:
Get kidney (human body)
(1) put into formalin solution (300ml), fix 10 days, normal temperature condition,
(2) kidney after fixing is put into 50%, 60%, 70%, 80%, 90%, 95%, 97%, 98%, 99% acetone soln (300ml) and was dewatered respectively two days, counts 18 days; Dehydration is seven days in 100% acetone soln.
(3) preparation plasticized silica gel solution: get dimethyl silicone polymer 0.5kg; Chloroplatinic acid 0.0025kg, composite organic modified silane 0.01kg, ether 0.025kg mixes, and takes out 300ml, and the kidney after the dehydration is put into, and under the normal temperature vacuum, carries out vacuum infiltration 10 days.
(4) get the organoalkoxysilane of 30ml, unsettled the shelving of kidney that vacuum infiltration is crossed is to carry out the air-set moulding under the condition of 60-70% in normal temperature, humidity.
Formalin of being got in the above-mentioned enforcement and biological plasticized silica gel solution, the preservation biological sample that their capacity is made for the energy submergence is as the criterion.The time of fixing, dehydration, vacuum infiltration with the volume size of biological sample itself and biological sample internal organizational structure thick, approach, loosen, tighten, dredge, close and decide.Generally to upper and lower two days of the time of human body specimen plasticizing process (promptly ± 2 day).
Claims (2)
1, a kind of new technology that is used for biological preservation, divide (1), fixing, (2), dehydration, (3), vacuum infiltration, (4), hardened forming technology, wherein (1), technique for fixing is that biological sample was put into 5% formalin solution fixedly 10-20 days at normal temperatures, feature of the present invention is (2), dewatering process is that the biological sample after will fixing at normal temperatures is placed on and carries out the classification dehydration in the acetone soln of different content, promptly 50%, 60%, 70%, 80%, 90%, 95%, 97%, 98%, respectively dewatered in 99% the acetone soln two days, dehydration is seven days in 100% acetone soln; (3), vacuum impregnation technique is with the biological sample after the dehydration at normal temperatures, drop in the biological plasticized silica gel solution, adopt the discontinuous negative pressure of vacuum infiltration method of bleeding, silica gel is fully infiltrated, time 10-25 days, this silica gel composition was made up of dimethyl silicone polymer, chloroplatinic acid, composite organic modified silane, ether; (4) hardened forming technology, under normal temperature, the condition of humidity at 60-70%, unsettled shelving is with organoalkoxysilane air-set moulding with the biological sample after fixing, dehydration, the infiltration.
2. a kind of new technology that biological sample is preserved that is used for according to claim 1, it is characterized in that each the composition weight of silica gel in the vacuum impregnation technique is: get the 100kg example with dimethyl silicone polymer, promptly get chloroplatinic acid 1-5kg, composite organic modified silane 2-8kg, ether 5-10kg, the organoalkoxysilane in (4) hardened forming technology is got 0-2kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116981A CN1055373C (en) | 1996-06-27 | 1996-06-27 | Organism preserving technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116981A CN1055373C (en) | 1996-06-27 | 1996-06-27 | Organism preserving technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1145717A true CN1145717A (en) | 1997-03-26 |
| CN1055373C CN1055373C (en) | 2000-08-16 |
Family
ID=5123927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116981A Expired - Fee Related CN1055373C (en) | 1996-06-27 | 1996-06-27 | Organism preserving technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055373C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397987C (en) * | 2006-04-17 | 2008-07-02 | 南京医科大学 | Manufacturing method of human body anatomy plastic specimen |
| CN102125025A (en) * | 2010-12-17 | 2011-07-20 | 滨州医学院 | Method for plasticizing biological specimen |
| CN104210311B (en) * | 2014-04-10 | 2017-03-29 | 河南科技大学 | A kind of preparation method of three-dimensional dry flower |
| CN110150263A (en) * | 2019-06-26 | 2019-08-23 | 广东药科大学 | A kind of Plastination method of unearthed mummy or anatomy |
| CN111213632A (en) * | 2019-11-19 | 2020-06-02 | 长春中医药大学 | Method and equipment for making animal medicine epoxy resin specimen |
| CN111449059A (en) * | 2020-05-12 | 2020-07-28 | 西南大学 | Orange fruit solidification specimen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4205059A (en) * | 1977-03-09 | 1980-05-27 | Hagens Gunther Von | Animal and vegetal tissues permanently preserved by synthetic resin impregnation |
| JP2777608B2 (en) * | 1989-08-16 | 1998-07-23 | 昭夫 井室 | Production of large resin-embedded specimens of living organisms |
| US5431952A (en) * | 1994-02-28 | 1995-07-11 | Board Of Trustees Operating Michigan State University | Method for preservation of biological tissue |
-
1996
- 1996-06-27 CN CN96116981A patent/CN1055373C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397987C (en) * | 2006-04-17 | 2008-07-02 | 南京医科大学 | Manufacturing method of human body anatomy plastic specimen |
| CN102125025A (en) * | 2010-12-17 | 2011-07-20 | 滨州医学院 | Method for plasticizing biological specimen |
| CN102125025B (en) * | 2010-12-17 | 2013-01-09 | 滨州医学院 | Method for plasticizing biological specimen |
| CN104210311B (en) * | 2014-04-10 | 2017-03-29 | 河南科技大学 | A kind of preparation method of three-dimensional dry flower |
| CN110150263A (en) * | 2019-06-26 | 2019-08-23 | 广东药科大学 | A kind of Plastination method of unearthed mummy or anatomy |
| CN111213632A (en) * | 2019-11-19 | 2020-06-02 | 长春中医药大学 | Method and equipment for making animal medicine epoxy resin specimen |
| CN111449059A (en) * | 2020-05-12 | 2020-07-28 | 西南大学 | Orange fruit solidification specimen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1055373C (en) | 2000-08-16 |
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