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 isotopes

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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
Application number
DEK14585A
Other languages
German (de)
Inventor
Helmut Richard Dr Kanitz
Albert Koch
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Individual
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Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEK14585A priority Critical patent/DE933885C/en
Application granted granted Critical
Publication of DE933885C publication Critical patent/DE933885C/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K51/00Preparations containing radioactive substances for use in therapy or testing in vivo
    • A61K51/12Preparations 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
    • A61K51/1217Dispersions, suspensions, colloids, emulsions, e.g. perfluorinated emulsion, sols
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2121/00Preparations for use in therapy

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  • 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)

PATENTANSPRUCH: Verfahren zur Herstellung von kolloidalen Lösungen radioaktiver Metalle wie radioaktiver Goldisotope, dadurch gekennzeichnet, daß als Schutzkolloid Polyvinylpyrrolidon und als Reduktionsmittel für die Metalle Ascorbinsäure verwendet wird. PATENT CLAIM: Process for the production of colloidal solutions radioactive metals such as radioactive gold isotopes, characterized in that as Protective colloid polyvinylpyrrolidone and as a reducing agent for the metals ascorbic acid is used. Angezogene Druckschriften: Schweizerische Patentschrift Nr. I98 O0I; deutsche Patentschrift Nr. 696 794. Attached publications: Swiss patent specification No. I98 O0I; German patent specification No. 696 794.
DEK14585A 1952-06-22 1952-06-22 Process for the production of colloidal solutions of radioactive metals such as radioactive gold isotopes Expired DE933885C (en)

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

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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

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DE (1) DE933885C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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