Research articles
ScienceAsia 48 (2022):ID 847-854 |doi:
10.2306/scienceasia1513-1874.2022.122
Facile and green synthesis of AgNPs by microwave-assisted
method using curcumin biomaterial for improving
antibacterial activities of NR/Ag composite sheets
Warot Chotpatiwetchkula, Monthol Saengsawanga, Chaval Sriwonga,b,*
ABSTRACT: Natural rubber (NR)-based composites or hybrid products obtained from NR and several nano-materials
are of interest due to their wide range of applications. However, they are easily contaminated with bacteria or fungi
that can affect human health, especially those used in food container and on human skin. Herein, we present the
composite sheets of NR latex and silver nanoparticles (AgNPs) with exceptionally high antibacterial activities. AgNPs
were firstly synthesized by a facile, rapid, and green microwave-assisted method using curcumin as a biomaterial
reductant and stabilizer. Then, natural rubbers loaded with AgNPs (NR/Ag) composite sheets were prepared via a
simple direct latex mixing-casting process of NR latex and various contents of AgNPs. The result demonstrated that the
synthesized AgNPs had a spherical-like shape of 12.25?3.13 nm. All the prepared NR/Ag composite sheets exhibited
high performance in antibacterial properties against Staphylococcus aureus and Escherichia coli, and the antibacterial
activities were dependent on the loaded AgNPs content. In this study, it is anticipated that these rapid, simple, green,
and effective methods can suitably be scaled up for large-scale preparation of the stabilized AgNPs colloid and NR/Ag
composite products.
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| a |
Department of Chemistry, School of Science, King Mongkut?s Institute of Technology Ladkrabang,
Bangkok 10520 Thailand |
| b |
Center of Excellence in Smart Materials Research and Innovation, King Mongkut?s Institute of Technology
Ladkrabang, Bangkok 10520 Thailand |
* Corresponding author, E-mail: chaval.sr@kmitl.ac.th
Received 14 Nov 2021, Accepted 15 Jun 2022
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