DE933885C - Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes - Google Patents
Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopesInfo
- Publication number
- DE933885C DE933885C DEK14585A DEK0014585A DE933885C DE 933885 C DE933885 C DE 933885C DE K14585 A DEK14585 A DE K14585A DE K0014585 A DEK0014585 A DE K0014585A DE 933885 C DE933885 C DE 933885C
- Authority
- DE
- Germany
- Prior art keywords
- radioactive
- metals
- production
- solution
- colloidal solutions
- 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.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
- A61K51/12—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules
- A61K51/1217—Dispersions, suspensions, colloids, emulsions, e.g. perfluorinated emulsion, sols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2121/00—Preparations for use in therapy
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Optics & Photonics (AREA)
- Dispersion Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung kolloidaler Lösungen radioaktiver Metalle wie radioaktiver Goldisotope Die Erfindung betrifft ein Verfahren zur Herstellung von kolloidalen Lösungen radioaktiver Metalle, beispielsweise radioaktiver Goldisotope.Process for the preparation of colloidal solutions of radioactive metals like radioactive gold isotopes The invention relates to a method of manufacture of colloidal solutions of radioactive metals, for example radioactive gold isotopes.
Es ist bereits bekannt, kolloidale Lösungen von Metall unter Verwendung von Gelatine herzustellen.It is already known to use colloidal solutions of metal of gelatin manufacture.
Diese Lösung läßt sich nicht in der Hitze sterilisieren und ist daher nicht für Heizzwecke verwendbar. Sie kann insbesondere nicht steril in Ampullen aufbewahrt werden, weil sie sich unter Abscheidung von Metallsalzen zersetzt.This solution cannot be sterilized in the heat and is therefore cannot be used for heating purposes. In particular, it cannot be sterile in ampoules must be kept because it decomposes with the separation of metal salts.
Es ist auch bereits bekannt, wäßrige kolloidale Lösungen von Metallen durch Reduktion einer wäßrigen Metallsalzlösung in Gegenwart von Dispergierungsmitteln wie Alkylcellulose (Zelluloseäther) herzustellen. Derartige Dispersionen sind jedoch für sich allein nicht dauernd stabil. Die Zelluloseäther sind zudem für intravenöse Injektionen nicht geeignet. It is also already known, aqueous colloidal solutions of metals by reducing an aqueous metal salt solution in the presence of dispersants how to produce alkyl cellulose (cellulose ether). However, such dispersions are not permanently stable on its own. The cellulose ethers are also for intravenous use Injections not suitable.
Schließlich ist noch bekannt, kolloidalen Metalllösungen nach erfolgter Reduktion als Stabilisator Ascorbinsäure zuzusetzen. Finally, it is also known to use colloidal metal solutions after Add reduction as a stabilizer ascorbic acid.
Demgegenüber kennzeichnet sich die vorliegende Erfindung dadurch, daß als Schutzkolloid Polyvinylpyrrolidon ohne jeden weiteren Zusatz und als Reduktionsmittel für die Metalle zur Herstellung einer kolloidalen Lösung Ascorbinsäure verwendet wird. In contrast, the present invention is characterized in that that as a protective colloid polyvinylpyrrolidone without any further additives and as a reducing agent Ascorbic acid for the metals used to make a colloidal solution will.
Diese Lösungen lassen sich durch Hitze sterilisieren und eignen sich für alle Verabreichungsarten, insbesondere auch für intravenöse Injektionen. These solutions can be heat sterilized and are suitable for all types of administration, especially for intravenous injections.
Bei Verwendung dieses synthetischen Kolloid und der Ascorbinsäure als Reduktionsmittel erhält man eine kolloidale Lösung radioaktiver Goldisotope mit Mengen bis zu 3 mg Gold in I ccm der Lösung. Mit Gelatine als Schutzkolloid können diese therapeutisch notwendigen großen Mengen von radioaktiven kolloiden Goldisotopen in einem Kubikzentimeter Lösung nicht untergebracht werden. Die kolloidale Lösung gemäß der Erfindung kann sterilisiert werden und ist dann unbegrenzt haltbar. When using this synthetic colloid and ascorbic acid as a reducing agent one colloidal solution is radioactive Gold isotopes with amounts up to 3 mg gold in 1 cc of the solution. With gelatin as a protective colloid can these therapeutically necessary large amounts of radioactive colloids Gold isotopes cannot be accommodated in a cubic centimeter of solution. The colloidal Solution according to the invention can be sterilized and can then be kept indefinitely.
Ein Ausführungsbeispiel ist folgendes: Zu 5 ccm einer zweiprozentigen wäßrigen Goldchlorid- oder Goldchloridchlorwasserstoffsäurelösung, die sich von einem Goldisotop herleiten, werden IO ccm Wasser und 5 ccm Polyvinylpyrrolidonlösung zugegeben. Dabei wird eine Polyvinylpyrrolidonlösung verwendet, wie sie handelsüblich ist und als Blutersatzflüssigkeit verwendet wird. Die Lösung wird mit Lauge, beispielsweise Natronlauge, neutralisiert bzw. ein PH bis etwa 8 eingestellt. Dieser Lösung werden nunmehr 5 ccm Ascorbinsäurelösung zugesetzt, die so viel Ascorbinsäure enthält, beispielsweise 0,I5 g Ascorbinsäure in IO ccm Wasser, daß alles Gold reduziert wird und somit eine kolloidale Goldlösung entsteht. An exemplary embodiment is as follows: To 5 cc of a two percent aqueous gold chloride or gold chloride hydrochloric acid solution, which is from derive from an isotope of gold, 10 cc of water and 5 cc of polyvinylpyrrolidone solution are used admitted. A polyvinylpyrrolidone solution is used, as is commercially available and is used as a blood substitute fluid. The solution is made with lye, for example Sodium hydroxide solution, neutralized or a pH of up to about 8 is set. This solution will be now 5 cc of ascorbic acid solution added, which contains so much ascorbic acid, for example 0.15 g of ascorbic acid in 10 cc of water, so that all the gold is reduced and thus a colloidal gold solution is created.
An Stelle der Natronlauge können zur Neutralisation auch andere basische Stoffe, z. B. Amine, Pyridine, Piperidine, Koffein, Chinin, verwendet werden. Instead of sodium hydroxide solution, other basic ones can also be used for neutralization Substances, e.g. B. amines, pyridines, piperidines, caffeine, quinine, can be used.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK14585A DE933885C (en) | 1952-06-22 | 1952-06-22 | Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK14585A DE933885C (en) | 1952-06-22 | 1952-06-22 | Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE933885C true DE933885C (en) | 1955-10-06 |
Family
ID=7214351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK14585A Expired DE933885C (en) | 1952-06-22 | 1952-06-22 | Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE933885C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154442B (en) * | 1960-03-31 | 1963-09-19 | California Research Corp | Process for the production of stable metal dispersions |
WO1998055154A1 (en) * | 1997-06-03 | 1998-12-10 | Coulter Pharmaceutical, Inc. | Radioprotectant for peptides labeled with radioisotope |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH198001A (en) * | 1935-12-18 | 1938-05-31 | Ig Farbenindustrie Ag | Process for the preparation of stable aqueous colloidal dispersions of metals. |
DE696794C (en) * | 1935-09-21 | 1940-09-30 | Madaus & Co Dr | Process for the stabilization of injection liquids containing colloidal bismuth |
-
1952
- 1952-06-22 DE DEK14585A patent/DE933885C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE696794C (en) * | 1935-09-21 | 1940-09-30 | Madaus & Co Dr | Process for the stabilization of injection liquids containing colloidal bismuth |
CH198001A (en) * | 1935-12-18 | 1938-05-31 | Ig Farbenindustrie Ag | Process for the preparation of stable aqueous colloidal dispersions of metals. |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154442B (en) * | 1960-03-31 | 1963-09-19 | California Research Corp | Process for the production of stable metal dispersions |
WO1998055154A1 (en) * | 1997-06-03 | 1998-12-10 | Coulter Pharmaceutical, Inc. | Radioprotectant for peptides labeled with radioisotope |
US5961955A (en) * | 1997-06-03 | 1999-10-05 | Coulter Pharmaceutical, Inc. | Radioprotectant for peptides labeled with radioisotope |
US6338835B1 (en) | 1997-06-03 | 2002-01-15 | Coulter Pharmaceutical, Inc. | Radioprotectant for peptides labeled with radioisotope |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE933885C (en) | Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes | |
EP0044050A2 (en) | Process for preparing ferrihydroxide-dextran complexes, and a pharmaceutical sterile solution containing them | |
DE1135921B (en) | Process for the preparation of heterocyclically substituted morphinans and their salts | |
DE734957C (en) | Process for the production of p-aminobenzenesulfonamide pellets | |
DE638030C (en) | Process for the production of a concentrated, durable, aqueous theophylline solution | |
DE1467980C3 (en) | Process for the production of injectable, durable iron (III) hydroxide-polymaltose complexes and pharmaceutical preparations containing them | |
DE829166C (en) | Process for the preparation of N- (p-arsenosobenzyl) glycine amide and its salts | |
DE940060C (en) | Process for the production of aqueous solutions of drugs that are poorly soluble in water | |
DE858455C (en) | Process for the production of neutral or weakly acidic solutions of substituted xanthines | |
DE852855C (en) | Process for the preparation of new diquartaric salts of pyrimidylaminoquinolines | |
DE873087C (en) | Process for the production of easily soluble halopyridone compounds | |
DE372246C (en) | Process for the production of long-lasting alkaline alumina salt solutions | |
DE712162C (en) | Process for the preparation of new derivatives of p-aminobenzenesulfonamide | |
DE690111C (en) | more sensitive solutions for sterilization | |
DE801839C (en) | Process for preparing an organic salt of ª-methylmercapto-ª-aminobutyric acid | |
DE950555C (en) | Process for the preparation of oxybenzoic acid-azo-benzenesulfonamides substituted on the amide nitrogen by a heterocyclic radical | |
DE383774C (en) | Process for the production of yellow iodine mercury | |
DE966373C (en) | Process for the production of stable, aqueous solutions from a streptomycin and a sulfanilamide | |
AT226702B (en) | Process for the production of new flavone-7-oxy-acetic acid amides | |
DE325640C (en) | Process for the preparation of an aggregation of p-aminophenylarsinic acid | |
DE731216C (en) | Molded bodies made from regenerated cellulose or water-swellable cellulose derivatives | |
DE684977C (en) | Process for the production of durable solutions of phenylazodiaminopyridine and its derivatives | |
DE618973C (en) | Process for the preparation of compounds of salts of 6-methylamino-2-methyl-2-heptene which are readily soluble in water | |
AT205668B (en) | ||
DE294436C (en) |