Macromol. Mater. Eng. 3/2009

Gladitz, Michael; Reinemann, Stefan; Radusch, Hans‐Joachim

doi:10.1002/mame.200990004

Cited by 12 publications

(18 citation statements)

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“…The ratio between the metal ions and the capping agents are crucial in determining the size of the metal nanoparticles [29]. In this work, the molar ratio of silver ions to nitrogen atoms of the polymer backbone was controlled to be 1:5.…”

Section: Methodsmentioning

confidence: 99%

In situ synthesis of silver nanoparticles on silk fabric with PNP for antibacterial finishing

et al. 2012

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This research presents a generic strategy to fabricate antibacterial textile through in situ synthesis of silver nanoparticles on the fabric with smart polymeric molecules. Silk fabric and polyamide network polymer (PNP) were chosen for this study. PNP which has numerous amino groups and three-dimensional structure was applied to entrap silver ions into silk fabric. The pretreated silk fabrics were heated by steam method to make silver nanoparticles synthesized in situ on them without any other reductant and linker to provide silk fabric with antibacterial properties. The results indicated that the treated silk fabrics had excellent antibacterial activity and laundering durability. The quantitative bacterial tests showed the bacterial reduction rates of Staphylococcus aureus and Escherichia coli were able to reach above 99 % with not more than 0.05 mmol/L of AgNO 3 . The whiteness of silk fabric only changed from 90.47 to 86.49. The antibacterial activity of the treated silk fabric was maintained at 98.86 % reduction even after being exposed to 30 consecutive home laundering conditions. In addition, the results of scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy confirmed that silver nanoparticles had generated and dispersed well in Ag 0 form on the surface of silk fibers. The understanding acquired from this work will allow one to work with the preparation of other silver nanoparticles functional textiles with excellent antibacterial activities and laundering durability through this facile, eco-friendly in situ synthesis method.

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Section: Methodsmentioning

confidence: 99%

In situ synthesis of silver nanoparticles on silk fabric with PNP for antibacterial finishing

et al. 2012

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“…Reinemann and coworkers used the modifi ed HPEI by palmitic acids to control the synthesis of silver nanohybrids with highspecifi c surface area and narrow particle size distribution. [ 191 ] These hybrid materials were utilized to form regular thin fi lm coatings with antibacterial effects. The antibacterial activity was tested using relevant species of human pathogens ( Staphylococcus aureus, Klebsiella pneumoniae ), and the results showed it was controlled by the silver release rate from the fi lms.…”

Section: Reviewmentioning

confidence: 99%

Self‐Assembly of Hyperbranched Polymers and Its Biomedical Applications

et al. 2010

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Hyperbranched polymers (HBPs) are highly branched macromolecules with a three-dimensional dendritic architecture. Due to their unique topological structure and interesting physical/chemical properties, HBPs have attracted wide attention from both academia and industry. In this paper, the recent developments in HBP self-assembly and their biomedical applications have been comprehensively reviewed. Many delicate supramolecular structures from zero-dimension (0D) to three-dimension (3D), such as micelles, fibers, tubes, vesicles, membranes, large compound vesicles and physical gels, have been prepared through the solution or interfacial self-assembly of amphiphilic HBPs. In addition, these supramolecular structures have shown promising applications in the biomedical areas including drug delivery, protein purification/detection/delivery, gene transfection, antibacterial/antifouling materials and cytomimetic chemistry. Such developments promote the interdiscipline researches among surpramolecular chemistry, biomedical chemistry, nano-technology and functional materials.

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“…These bacteria have the ability to survive and proliferate on common surfaces for up to nine weeks, and can be easily spread through direct contact. [7][8][9] While this approach can be effective, some limitations include the release of toxic species into the environment, and the gradual exhaustion of the biocide, resulting in inactivity as well as subinhibitory concentrations of biocide near the surface and in the environment that will facilitate the development of bacterial resistance. Coatings for medical devices such catheters and implants also have great potential to reduce the bacterial infections that result from these objects.…”

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confidence: 99%