JPH01229048A - Production of gel - Google Patents

Production of gel

Info

Publication number
JPH01229048A
JPH01229048A JP5383488A JP5383488A JPH01229048A JP H01229048 A JPH01229048 A JP H01229048A JP 5383488 A JP5383488 A JP 5383488A JP 5383488 A JP5383488 A JP 5383488A JP H01229048 A JPH01229048 A JP H01229048A
Authority
JP
Japan
Prior art keywords
gel
solution
sodium alginate
cells
animal cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5383488A
Other languages
Japanese (ja)
Other versions
JPH0571620B2 (en
Inventor
Kenji Hashimoto
健治 橋本
Yoshito Shirai
義人 白井
Shinji Irie
入江 慎二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kibun KK
Kikkoman Soyfoods Co
Original Assignee
Kibun Food Chemifa KK
Kibun KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kibun Food Chemifa KK, Kibun KK filed Critical Kibun Food Chemifa KK
Priority to JP5383488A priority Critical patent/JPH01229048A/en
Publication of JPH01229048A publication Critical patent/JPH01229048A/en
Publication of JPH0571620B2 publication Critical patent/JPH0571620B2/ja
Granted legal-status Critical Current

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  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain a gel capable of producing a large amount of preformed chemical mediators such as animal cells, etc., having a great number of voids in the gel, by blending a specific sodium alginate with a chelating agent, animal cells, etc., and molding the blend with calcium ion. CONSTITUTION:A 0.1-2% solution of sodium alginate having 0.2-1.5 M/G ratio and 10-1,500cp (at 25 deg.C) at 1% solution is blended with fine particles of one or more of animal cell, small organ in cell, vegetable cell, adventitious embryo, starch, glass beads, active carbon, silica gel, ion exchange resin, etc., and molded into a proper shape with calcium ion to give the aimed gel. Sodium hydrogen carbonate, etc., for example, may be cited as the chelating agent and the amount of the chelating agent added is 0.01-0.1%.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、アルギン酸カルシウムのゲルを製造する方法
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing a calcium alginate gel.

更に詳細には、本発明は、ゲル内に多数の空ゲキを有す
るアルギン酸カルシウムのゲルを製造する方法に関する
ものである。
More particularly, the present invention relates to a method for producing a calcium alginate gel having a large number of voids within the gel.

本発明によって製造されたゲルはゲル内に多数の空ゲキ
を有し、ここに動物細胞等の生理活性体を添加した場合
には、生理活性体が大量に増殖することができるために
、動物細胞等が生産する物質を大量に生産させることが
容易となり、発酵工業界、製薬界等に寄与するところ大
なるものがある。
The gel produced according to the present invention has a large number of empty cells within the gel, and when bioactive substances such as animal cells are added thereto, the bioactive substances can proliferate in large quantities. It will be easier to mass-produce substances produced by cells, etc., and this will greatly contribute to the fermentation industry, pharmaceutical industry, etc.

(従来技術) 一般に動物細胞、植物細胞その他これらに関連した生理
活性体などを固定化するには、これらの1種もしくは2
種以上をアルギン酸ナトリウムなどのゲル化能を有する
物質の水溶液に懸濁し、Ca”4などのゲル化剤中に滴
下してゲル化して、固定化が行なわれている。
(Prior art) Generally, in order to immobilize animal cells, plant cells, and other physiologically active substances related to these, one or two of these are used.
Immobilization is carried out by suspending the seeds in an aqueous solution of a substance having gelling ability such as sodium alginate, and dropping the suspension into a gelling agent such as Ca''4 to form a gel.

(発明が解決しようとする問題点) 従来技術によって、動物細胞等を固定化する場合、自由
に増殖するだけ多数の空ゲキが与えられることはなかっ
た。適当な空ゲキがないために一定の許容範囲まで増殖
すると、動物細胞等は増殖を停止してしまって、培養生
産物を生産することもなくなってしまうのであった。
(Problems to be Solved by the Invention) When animal cells and the like are immobilized using conventional techniques, they are not provided with enough cells to proliferate freely. Due to the lack of adequate energy, animal cells, etc., once they proliferate to a certain permissible range, stop proliferating and no longer produce any cultured products.

(問題点を解決するための手段) 本発明者らは、ゲルの中に多数の空ゲキを作ることがで
きれば、動物細胞等を固定化して培養する際、著しるし
く物質生産性を高めることができるとの考えから鋭意研
究したところ、特定の物性をそなえたアルギン酸ナトリ
ウムを使用すれば、固定化したとき自然に多数の空ゲキ
を形成させることができることを知ったのである。
(Means for Solving the Problems) The present inventors believe that if a large number of empty cells can be created in a gel, it will significantly increase material productivity when immobilizing and culturing animal cells, etc. After conducting intensive research with the idea that this could be done, he discovered that by using sodium alginate, which has specific physical properties, it is possible to spontaneously form a large number of air bubbles when immobilized.

本発明は、この知見から完成されたもので、M/G比が
0.2−1.5で、1%溶液で10〜1500cp (
25℃における)であるアルギン酸ナトリウムの001
〜2%の溶液に、キレート剤及び動物細胞、細胞内小器
官、植物細胞、植物の不定胚、デンプン、ガラスビーズ
、活性炭、シリカゲル、イオン交換樹脂などの微粒子の
1種以上を添加したものをカルシウムイオンで適宜形状
に成型することを特徴とする空ゲキを有するゲルの製造
方法である。
The present invention was completed based on this knowledge, and has an M/G ratio of 0.2-1.5 and a 1% solution of 10-1500 cp (
001 of sodium alginate) at 25°C
~2% solution to which one or more of a chelating agent and particulates such as animal cells, intracellular organelles, plant cells, plant somatic embryos, starch, glass beads, activated carbon, silica gel, and ion exchange resins are added. This is a method for producing a gel having an air bubble, which is characterized by molding it into an appropriate shape using calcium ions.

微粒子の大きさとしては0.1〜200μl程度がよい
The size of the fine particles is preferably about 0.1 to 200 μl.

本発明の空ゲキとは、ゲル中に微粒子が点在しており、
その微粒子からゲルの中心に向って空ゲキができている
ものであり、空ゲキの中は、水や培地などの液体が充満
しているものである。
The dry gel of the present invention has fine particles scattered in the gel,
An air bubble is formed from the fine particles toward the center of the gel, and the air bubble is filled with liquid such as water or a culture medium.

本発明においては、特定の物性をそなえたアルギン酸ナ
トリウムが使用される。
In the present invention, sodium alginate with specific physical properties is used.

一般に、アルギン酸はD−マンヌロン酸(M)とL−グ
ルロン酸(G)とから構成されていて、両者の成分比(
M/G比)が物性に大きな影響を与えている。
Generally, alginic acid is composed of D-mannuronic acid (M) and L-guluronic acid (G), and the ratio of the two components is (
M/G ratio) has a great influence on physical properties.

そして、Mのみからなる部分、Gのみからなる部分、M
とGが混在する部分などがあるがゲル化剤の金属イオン
と結合して強固なゲルを形成するのは主としてGブロッ
クの働きによることが明らかとなっている。
Then, a part consisting only of M, a part consisting only of G, M
Although there are parts where G and G are mixed, it is clear that it is mainly the function of the G block that forms a strong gel by combining with the metal ions of the gelling agent.

本発明では、アルギン酸を構成するD−マンヌロン酸(
M)とし−グルロン酸(G)の比、すなわちM/G比が
0.2〜1.5、好ましくは0.5〜1.2のものを選
んで用いる。
In the present invention, D-mannuronic acid (
M) Those having a ratio of ash and guluronic acid (G), that is, an M/G ratio of 0.2 to 1.5, preferably 0.5 to 1.2, are selected and used.

また、本発明に用いるアルギン酸ナトリウムは1%溶液
で、25℃で測定した粘度が10〜1500cp、好ま
しくは50〜500cpのものでなければならない。
Furthermore, the sodium alginate used in the present invention is a 1% solution and must have a viscosity of 10 to 1500 cp, preferably 50 to 500 cp, as measured at 25°C.

また、成型時のアルギン酸ナトリウムの溶液の濃度は0
.1〜2%、好ましくは0.5〜1.0%でなければな
らない。
Also, the concentration of sodium alginate solution during molding is 0.
.. It should be between 1 and 2%, preferably between 0.5 and 1.0%.

以上のM/G比、粘度及び溶液の濃度すべてが上記特定
の範囲にあるとき、キレート剤及び動物細胞等を添加混
合して、カルシウムイオンによって成型して、はじめて
ゲル内に多数の空ゲキを形成させることができる。多数
の空ゲキを形成させるための条件は多くの実験を重ねて
確認されたもので、これらの条件をはずれれば多数の空
ゲキは形成されないことも実験によって確認されたので
ある。
When the above M/G ratio, viscosity, and concentration of the solution are all within the above specified ranges, chelating agents, animal cells, etc. are added and mixed, and the gel is molded by calcium ions to form a large number of empty cells in the gel. can be formed. The conditions for forming a large number of air bubbles have been confirmed through many experiments, and it has also been confirmed through experiments that if these conditions are violated, large numbers of air bubbles will not form.

キレート剤は多数の空ゲキの形成を促進させるために添
加されるが、キレート剤の種類の例示と添加量は大約次
の通りである。
A chelating agent is added to promote the formation of a large number of voids, and examples of the types of chelating agents and amounts added are roughly as follows.

重炭酸ナトリウム0.001〜0.5%、好ましくは0
.01〜0.1%。
Sodium bicarbonate 0.001-0.5%, preferably 0
.. 01-0.1%.

ヘキサメタン酸Na 0.0001〜0.3%、好まし
くは0.0003〜0.03%。
Na hexamethanate 0.0001-0.3%, preferably 0.0003-0.03%.

E D T A 2Na O,0001〜2.0%、好
ましくは0.0002〜0.02%。
EDT A 2Na O, 0001-2.0%, preferably 0.0002-0.02%.

りん酸塩(Na、に) 0.001〜0.1%、好まし
くは0.01〜0.02゜ クエン酸塩(Na、 K) 0.0OL”0.1%、好
ましくは0.01〜0.02゜ シュウ酸0.001〜0.1%、 好ましくはo、oos〜0.02゜ その他のキレート剤として、硫酸、炭酸、リン酸、など
の無機酸、乳酸、クエン酸などの有機酸、縮合リン酸塩
、ジメチルオキシム、オキシン、ジチゾンなどの化合物
がある。
Phosphate (Na, Ni) 0.001-0.1%, preferably 0.01-0.02°Citrate (Na, K) 0.0OL"0.1%, preferably 0.01-0.02° 0.02゜oxalic acid 0.001 to 0.1%, preferably o, oos ~ 0.02゜Other chelating agents include inorganic acids such as sulfuric acid, carbonic acid, and phosphoric acid, and organic acids such as lactic acid and citric acid. Compounds include acids, condensed phosphates, dimethyl oxime, oxine, and dithizone.

固定化する生理活性体としては、動物細胞、細胞内の小
器官、植物細胞、植物の不定胚がある。
Physiologically active substances to be immobilized include animal cells, intracellular organelles, plant cells, and somatic embryos of plants.

動物細胞としては、各種生理活性物質を生産する細胞株
、抗体を生産するハイブリドーマなどがあり、単細胞で
もよく、細胞集合体でもよい、細胞内小器官としてはミ
トコンドリア、ミクロソームなどがある。また、植物細
胞としては各種物質を生産する細胞やカルスがあり、植
物の不定胚としてはカルス細胞、プロトプラスト、朽、
花粉、珠心、子房、胚珠などから誘導したものがある。
Animal cells include cell lines that produce various physiologically active substances, hybridomas that produce antibodies, etc., and may be single cells or cell aggregates, and intracellular organelles include mitochondria, microsomes, etc. In addition, plant cells include cells that produce various substances and callus, and somatic embryos of plants include callus cells, protoplasts, decay, and callus.
There are those derived from pollen, nucule, ovary, ovule, etc.

キレート剤動物細胞等はアルギン酸ナトリウム溶液に添
加され、混合してカルシウムイオンによって適宜形状に
成型される。使用する液としては0.025〜1.0モ
ル程度の塩化カルシウム溶液などがよい。
A chelating agent such as animal cells is added to a sodium alginate solution, mixed and molded into an appropriate shape by calcium ions. The liquid used is preferably a calcium chloride solution of about 0.025 to 1.0 mol.

1、 注射器やピペット等のノズルからカルシウムイオ
ンを含有する水溶液中に滴下することによりビーズ状の
ゲルが得られる。
1. Bead-shaped gel can be obtained by dropping it into an aqueous solution containing calcium ions from a nozzle such as a syringe or pipette.

2、 カルシウムイオンを含有する水溶液中で注射器、
ピペット等のノズルから連続的に吐出させることにより
繊維状のゲルが得られる。
2. Syringe in an aqueous solution containing calcium ions,
A fibrous gel can be obtained by continuously discharging it from a nozzle such as a pipette.

3、 平板上にキャストするか濾紙もしくはガーゼなど
に含浸させた後、水溶液中のカルシウムイオンと接触さ
せることにより膜状のゲルを得ることができる。
3. After casting on a flat plate or impregnating filter paper or gauze, a membrane-like gel can be obtained by contacting with calcium ions in an aqueous solution.

ここに得られた固定化ゲルはゲル内に安定化された多数
の空ゲキを有しており、動物細胞等をかなり長期間にわ
たって自由に増殖させることができ、各種生理活性物質
等を大量生産することができるものである。
The immobilized gel obtained here has a large number of cells stabilized within the gel, allowing animal cells to grow freely over a fairly long period of time, and making it possible to mass-produce various physiologically active substances. It is something that can be done.

次に本発明の実施例を示す。Next, examples of the present invention will be shown.

実施例1 重ソウ0.05%を含むアルギン酸ナトリウム(M/G
比1.0.1%粘度100cp/25℃)に、市販のマ
ウスミエローマ細胞(大日本製薬に、に製)にBリンパ
球を常法により融合したハイブリドーマ培養懸濁液を1
、OX 10’ケ/gゲルになるよう添加、混合し、最
終的にハイブリドーマを温潤させた1%アルギン酸ナト
リウム溶液を得た。
Example 1 Sodium alginate (M/G) containing 0.05% sodium chloride
A hybridoma culture suspension obtained by fusion of B lymphocytes to commercially available mouse myeloma cells (manufactured by Dainippon Pharmaceutical Co., Ltd.) using a conventional method was added to
, OX was added and mixed to give 10'kg of gel, and finally a 1% sodium alginate solution was obtained which warmed the hybridoma.

この1%アルギン酸ナトリウム溶液を注射器につめ、氷
水中の0.1M塩化カルシウム溶液に滴下し60分放置
し、空ゲキが多数できた粒状化ゲルを得た。
This 1% sodium alginate solution was filled into a syringe, and dropped into a 0.1M calcium chloride solution in ice water and left for 60 minutes to obtain a granulated gel with many hollow particles.

得られたゲルを、下記の組成の無血清RDF培地で3日
間37℃で静置培養し、グルコースの消費量をみたとこ
ろ、20日間定量的にグルコースを消費しているのが認
められた。
When the obtained gel was statically cultured at 37° C. for 3 days in a serum-free RDF medium having the following composition and the amount of glucose consumed was observed, it was observed that glucose was consumed quantitatively for 20 days.

RDF培地組成 RPMI 1640      5.46gDME  
        2.62gF12         
2.78g HEPES         0.357gNaHCO
31、05g Pen1cillin       10sun105
unitStrepto      0.1g uni
tInsulin        l0HTransf
errin      20BMonoethanol
amine    20 μmolSodium 5e
lenite    1 nmolWater    
     11iter実施例2 粒径84μmを有するデンプン粒0.1% V/V及び
ヘキサメタリン酸ナトリウム0.01%を含む1.0%
アルギン酸ナトリウム(M/G比0.2.1%粘度50
cp/ 25℃)溶液50dを0.1M塩化カルシウム
溶液に滴下し、ビーズ状のゲルを得た。
RDF medium composition RPMI 1640 5.46gDME
2.62gF12
2.78g HEPES 0.357g NaHCO
31, 05g Pen1cillin 10sun105
unitStrepto 0.1g uni
tInsulin l0HTTransf
errin 20B Monoethanol
amine 20 μmolSodium 5e
lenite 1 nmolWater
11iter Example 2 Starch granules with particle size 84 μm 0.1% V/V and 1.0% containing 0.01% sodium hexametaphosphate
Sodium alginate (M/G ratio 0.2.1% viscosity 50
cp/25°C) solution was dropped into a 0.1M calcium chloride solution to obtain a bead-shaped gel.

得られたゲル内には、デンプン粒から生成した針状の空
ゲキが中心部に向って多数みられた。
In the resulting gel, many needle-like cavities generated from starch granules were observed toward the center.

実施例3 重ソウO,OS%を含むアルギン酸ナトリウム(M/G
比0.2.1%粘度50cp/25℃)溶液100m1
2に市販のマウスミエローマ細胞(大日本製薬に、に製
)にBリンパ球を常法により融合したハイブリドーマ培
養懸濁液を1.OX 10@ケ/gゲルになるよう添加
し、更に平均粒径80μmを有するガラスビーズを0.
1%V/Vになるよう添加、両者を混合し、最終的にハ
イブリドーマ及びガラスビーズを懸濁させた1%アルギ
ン酸ナトリウム溶液を得た。 この1%アルギン酸ナト
リウム溶液を注射器につめ、氷水中の0.1M塩化カル
シウム溶液に滴下し、60分放置し、大きな空ゲキを多
数有する粒状化ゲルを得た。
Example 3 Sodium alginate (M/G
0.2.1% viscosity 50cp/25℃) solution 100ml
2. A hybridoma culture suspension in which B lymphocytes were fused to commercially available mouse myeloma cells (manufactured by Dainippon Pharmaceutical Co., Ltd.) using a conventional method was added to 1. OX was added to give 10 ml/g gel, and glass beads having an average particle size of 80 μm were added to 0.0 μm.
The mixture was added to give a 1% V/V and the two were mixed to finally obtain a 1% sodium alginate solution in which hybridomas and glass beads were suspended. This 1% sodium alginate solution was filled into a syringe, added dropwise to a 0.1M calcium chloride solution in ice water, and left to stand for 60 minutes to obtain a granulated gel having many large cavities.

得られたゲルを前述のRDF培地で3日間37℃で静地
培養し、グルコースの消費量をみたところ、20日間定
量的にグルコースを消費しているのが認められた。
When the obtained gel was statically cultured at 37° C. for 3 days in the above-mentioned RDF medium and the amount of glucose consumed was observed, it was observed that glucose was consumed quantitatively for 20 days.

代理人 弁理士 戸 1)親 男Agent Patent Attorney 1) Parent Male

Claims (1)

【特許請求の範囲】[Claims] (1)M/G比が0.2〜1.5で、1%溶液で10〜
1500cp(25℃における)であるアルギン酸ナト
リウムの0.1〜2%の溶液に、キレート剤及び動物細
胞、細胞内小器官、植物細胞、植物の不定胚、デンプン
、ガラスビーズ、活性炭、シリカゲル、イオン交換樹脂
などの微粒子の1種以上を添加したものをカルシウムイ
オンで適宜形状に成型することを特徴とする空ゲキを有
するゲルの製造方法。
(1) M/G ratio is 0.2 to 1.5, 1% solution is 10 to
Chelating agents and animal cells, intracellular organelles, plant cells, plant somatic embryos, starch, glass beads, activated carbon, silica gel, ions, in a 0.1-2% solution of sodium alginate that is 1500 cp (at 25 °C) A method for producing a gel having air bubbles, which comprises molding a gel containing one or more types of fine particles such as an exchange resin into an appropriate shape using calcium ions.
JP5383488A 1988-03-09 1988-03-09 Production of gel Granted JPH01229048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5383488A JPH01229048A (en) 1988-03-09 1988-03-09 Production of gel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5383488A JPH01229048A (en) 1988-03-09 1988-03-09 Production of gel

Publications (2)

Publication Number Publication Date
JPH01229048A true JPH01229048A (en) 1989-09-12
JPH0571620B2 JPH0571620B2 (en) 1993-10-07

Family

ID=12953819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5383488A Granted JPH01229048A (en) 1988-03-09 1988-03-09 Production of gel

Country Status (1)

Country Link
JP (1) JPH01229048A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011230A1 (en) * 1994-10-05 1996-04-18 Monsanto Company Alginate gels
JP2007505197A (en) * 2003-05-23 2007-03-08 ドクトル ズベラック スキン アンド ヘルス ケア アクチェンゲゼルシャフト Process for the preparation of alginate-containing porous articles
JP2007106965A (en) * 2005-10-17 2007-04-26 Asahi Kasei Corp Gel particle
CN114522157A (en) * 2022-02-23 2022-05-24 重庆大学 Application of calcium ion chelating agent in preparation of preparation for improving phagocytic capacity of vascular endothelial cells

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011230A1 (en) * 1994-10-05 1996-04-18 Monsanto Company Alginate gels
JP2007505197A (en) * 2003-05-23 2007-03-08 ドクトル ズベラック スキン アンド ヘルス ケア アクチェンゲゼルシャフト Process for the preparation of alginate-containing porous articles
JP2007106965A (en) * 2005-10-17 2007-04-26 Asahi Kasei Corp Gel particle
JP4623731B2 (en) * 2005-10-17 2011-02-02 旭化成株式会社 Gel particles
CN114522157A (en) * 2022-02-23 2022-05-24 重庆大学 Application of calcium ion chelating agent in preparation of preparation for improving phagocytic capacity of vascular endothelial cells
CN114522157B (en) * 2022-02-23 2023-08-15 重庆大学 Application of calcium ion chelating agent in preparation of preparation for improving phagocytic capacity of vascular endothelial cells

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