WO2012017446A3 - Improved process for the preparation of stable suspension of nano silver particles having antibacterial activity - Google Patents

Improved process for the preparation of stable suspension of nano silver particles having antibacterial activity Download PDF

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Publication number
WO2012017446A3
WO2012017446A3 PCT/IN2011/000474 IN2011000474W WO2012017446A3 WO 2012017446 A3 WO2012017446 A3 WO 2012017446A3 IN 2011000474 W IN2011000474 W IN 2011000474W WO 2012017446 A3 WO2012017446 A3 WO 2012017446A3
Authority
WO
WIPO (PCT)
Prior art keywords
silver
solution
iii
preparation
antibacterial activity
Prior art date
Application number
PCT/IN2011/000474
Other languages
French (fr)
Other versions
WO2012017446A2 (en
Inventor
Revathi Janardhanan
Hebalkar Neha
Narsinga Rao Tata
Original Assignee
International Advanced Research Centre For Powder Metallurgy And New Materials (Arci)
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 International Advanced Research Centre For Powder Metallurgy And New Materials (Arci) filed Critical International Advanced Research Centre For Powder Metallurgy And New Materials (Arci)
Priority to GB1303768.4A priority Critical patent/GB2496089B/en
Publication of WO2012017446A2 publication Critical patent/WO2012017446A2/en
Publication of WO2012017446A3 publication Critical patent/WO2012017446A3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

This invention relates to an improved process for the preparation of stable suspension of nano silver particles having antibacterial activity, comprising the steps of: (i). Preparing a glucose solution and a silver salt solution in water separately wherein silver salt is selected from Silver Sulphate, Silver Accetate and Silver Nitrate; (ii) Mixing the two solutions, as prepared in step (i), and stirring the mixture for 5 to 10 minutes; (iii) Preparing a solution of surfactant in water and adding the solution, to the solution obtained in step (ii) and stirred slowly for 1 - 5 minutes; (iv) Adding the basic reagent diethyl amine to the solution obtained in step (iii) if silver sulphate or silver acetate is used, or adding the basic reagent Sodium carbonate to the solution obtained in step (iii) if silver salt, as mentioned in step(i), is used and (v) Adding anti foaming agent to the suspension obtained in step (iii).
PCT/IN2011/000474 2010-08-04 2011-07-19 Improved process for the preparation of stable suspension of nano silver particles having antibacterial activity WO2012017446A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1303768.4A GB2496089B (en) 2010-08-04 2011-07-19 Improved process for the preparation of stable suspension of nano silver particles having antibacterial activity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1835/DEL/2010 2010-08-04
IN1835DE2010 2010-08-04

Publications (2)

Publication Number Publication Date
WO2012017446A2 WO2012017446A2 (en) 2012-02-09
WO2012017446A3 true WO2012017446A3 (en) 2012-10-04

Family

ID=44645164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2011/000474 WO2012017446A2 (en) 2010-08-04 2011-07-19 Improved process for the preparation of stable suspension of nano silver particles having antibacterial activity

Country Status (2)

Country Link
GB (1) GB2496089B (en)
WO (1) WO2012017446A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014099525A1 (en) * 2012-12-21 2014-06-26 Danisco Us Inc. Paenibacillus curdlanolyticus amylase, and methods of use, thereof
CN113331208B (en) * 2020-03-03 2022-08-09 东北大学秦皇岛分校 Stable nano silver-titanium suspension and preparation method thereof
US20210402433A1 (en) * 2020-04-29 2021-12-30 Unique Equipment Solutions Llc System and method for impregnating a porous surface with antibacterial and antiviral compounds
CN111659900A (en) * 2020-05-09 2020-09-15 苏州英纳电子材料有限公司 Nano silver particle and preparation method thereof
CN112024906B (en) * 2020-08-26 2022-03-25 山东建邦胶体材料有限公司 Surface treatment liquid in silver powder preparation process and adding mode
CN112284851A (en) * 2020-10-26 2021-01-29 南开大学 Preparation method of nontoxic nano-scale plastic microparticles
CN114346252B (en) * 2021-12-30 2023-12-01 南通大学 Nano silver colloid solution, preparation method thereof and washing-resistant antibacterial antiviral fabric
CN115137681A (en) * 2022-06-23 2022-10-04 深圳市黄田荔枝品牌发展有限公司 Litchi mask and preparation method thereof
CN115753727B (en) * 2022-11-04 2023-07-11 中国科学院上海硅酸盐研究所 Ag nanoparticle reinforced phosphoene SARS-CoV-2 detection probe, chromatographic test strip, preparation method and application

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080064767A1 (en) * 2006-09-11 2008-03-13 National Tsing Hua University High-concentration nanoscale silver colloidal solution and preparing process thereof
WO2009145393A1 (en) * 2008-05-28 2009-12-03 Bioneer Corporation Nanocomposites consisting of carbon nanotube and metal and a process for preparing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6660058B1 (en) 2000-08-22 2003-12-09 Nanopros, Inc. Preparation of silver and silver alloyed nanoparticles in surfactant solutions
US9005663B2 (en) 2004-08-31 2015-04-14 The Curators Of The University Of Missouri Methods for producing silver nanoparticles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080064767A1 (en) * 2006-09-11 2008-03-13 National Tsing Hua University High-concentration nanoscale silver colloidal solution and preparing process thereof
WO2009145393A1 (en) * 2008-05-28 2009-12-03 Bioneer Corporation Nanocomposites consisting of carbon nanotube and metal and a process for preparing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JANARDHANAN R ET AL: "Synthesis and surface chemistry of nano silver particles", POLYHEDRON, PERGAMON PRESS, OXFORD, GB, vol. 28, no. 12, 5 August 2009 (2009-08-05), pages 2522 - 2530, XP026320069, ISSN: 0277-5387, [retrieved on 20090523], DOI: 10.1016/J.POLY.2009.05.038 *
P K SAHOO ET AL: "Synthesis of Silver Nanoparticles using Facile Wet Chemical Route", DEFENCE SCIENCE JOURNAL, vol. 59, no. 4, 1 July 2009 (2009-07-01), pages 447 - 455, XP055034375 *

Also Published As

Publication number Publication date
WO2012017446A2 (en) 2012-02-09
GB201303768D0 (en) 2013-04-17
GB2496089A (en) 2013-05-01
GB2496089B (en) 2014-06-18

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