Reduction of silver (I) using defatted cashew nut shell starch and its structural comparison with commercial product.
In this current study, we report on the reduction of noble metal silver into silver nanoparticles using defatted cashew nut shell (CNS) starch as both the reducing and capping agents. Furthermore, it was compared with commercially available silver nanopowder for the first time. Color changes, ultraviolet-visible spectra (433.76nm), X-ray diffraction peaks (2θ=37.8, 46.3, 66.2, and 77.92) revealed the face-centered cubic (fcc) geometry of silver nanoparticles, scanning electron microscopy-energy dispersive spectroscopy confirmed the presence of elemental silver nanoparticles and the defatted CNS starch silver nanoparticle structures was in accordance to commercial silver nanopowder. The size of both the nanoparticles was found to be similar in the range of 10-50nm as analyzed using high resolution-transmission electron micrographs. The FT-IR spectroscopy revealed the shifting of NH and OH of defatted CNS starch, starch based silver nanoparticle and commercial silver nanopowder has parallel functional groups. The use of environmentally benign and renewable materials like defatted CNS starch offers an alternative to large scale synthesis of silver nanoparticle and includes numerous benefits like eco-friendly and compatibility for pharmaceutical and biomedical applications.
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea.
Palanivel
P
Velmurugan
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea.
Jung-Hee
JH
Park
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea.
Sang-Myeong
SM
Lee
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea.
Jum-Suk
JS
Jang
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea.
Young-Joo
YJ
Yi
Department of Forest Environment Science, College of Agriculture & Life Sciences, Chonbuk National University, Jeonju 561-756, South Korea.
Sang-Sub
SS
Han
Department of Forest Environment Science, College of Agriculture & Life Sciences, Chonbuk National University, Jeonju 561-756, South Korea.
Sang-Hyun
SH
Lee
National Institute of Crop Science, RDA, Iksan, Jeonbuk 570-080, South Korea.
Kwang-Min
KM
Cho
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea. Electronic address: cho317@jbnu.ac.kr.
Min
M
Cho
Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk 570-752, South Korea. Electronic address: btoh@jbnu.ac.kr.
Byung-Taek
BT
Oh
D031021:Anacardium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry; D009754:Nuts / Q000737:chemistry*; D010084:Oxidation-Reduction; D012834:Silver / Q000737:chemistry*; D013213:Starch / Q000737:chemistry*
D012834:Silver; D013213:Starch
Characterization; Commercial; Defatted cashew nut shell; Nanoparticles; Silver; Starch