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Organic polymer-inorganic fine particle antimicrobial composites and uses thereof

An antimicrobial and polymer technology, applied in the direction of inorganic active ingredients, plant growth regulators, medical preparations containing active ingredients, etc., can solve the problems of expensive chemicals

Inactive Publication Date: 2014-12-03
INDIAN INST OF TECH MADRAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are only a few methods for the synthesis of organic soluble silver nanoparticles-polymer composites (Ag-PNC), and all methods either involve multi-step synthetic procedures or involve expensive chemicals

Method used

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  • Organic polymer-inorganic fine particle antimicrobial composites and uses thereof
  • Organic polymer-inorganic fine particle antimicrobial composites and uses thereof
  • Organic polymer-inorganic fine particle antimicrobial composites and uses thereof

Examples

Experimental program
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Embodiment

[0037] In an exemplary embodiment, the polymerization reaction including reaction chemistry may be as follows:

[0038]

[0039] Alkoxybenzyl halide adsorbs on Ag nanoparticles, resulting in the formation of carbocations and halide anions. The carbocation reacts with the newly prepared methoxybenzyl halide to form the dimer shown in the scheme. The dimer and trimer formed during the reaction further react to form a polycondensation product on the nano surface to generate Ag-PNC. The synthesis method does not produce any harmful by-products, and most processing uses only water. Note that in the reported / patented case, the external catalyst required for monomer polymerization is avoided in the synthesis disclosed herein, because the nanoparticle itself can also act as a catalyst for the polycondensation reaction. In the polycondensation reaction shown above, the alkoxybenzyl halide undergoes a polycondensation reaction on the nano surface to produce Ag-PNC. The polymer formed is...

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Abstract

An embodiment relates to a composition comprising a noble-metal containing nanoparticle and a polymer located on a surface of the nanoparticle, wherein the polymer is a polycondensation product of a halogenated monomer. Other embodiments relate to the method of making a composition and providing antimicrobial treatment using the composition.

Description

[0001] Cross references to related applications [0002] The present invention claims the rights of U.S. Patent Application No. 12 / 639,403 filed on December 16, 2009, and U.S. Patent Application No. 12 / 639,403 requires Indian Patent Application No. 2052 / CHE filed on August 26, 2009 / 2009 priority, the entire contents of both are incorporated herein by reference. Background technique [0003] Silver (Ag) nanoparticles are used in fields ranging from health care, defense to daily life. For these applications, the stability and complete dispersibility of Ag nanoparticles in solvents are critical, and this is one of the most challenging issues that limit their wide application. One way to protect nanoparticles and enhance their solubility is through polymer stabilization. Polymer stabilization greatly increases the stability and processability of nanoparticles for industrial applications. However, there are only a few methods for the synthesis of organic soluble silver nanoparticle-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B1/00B01J23/38C08G61/00A61K33/38B01J23/48
CPCA01N59/16A01N25/26A01N25/34A01N2300/00
Inventor 塔拉皮·普拉迪普阿普库坦·斯里库马兰·奈尔
Owner INDIAN INST OF TECH MADRAS