PMID- 32806256
OWN - NLM
STAT- MEDLINE
DCOM- 20210426
LR  - 20210426
IS  - 1873-0191 (Electronic)
IS  - 0928-4931 (Linking)
VI  - 116
DP  - 2020 Nov
TI  - Single-step green route synthesis of Au/Ag bimetallic nanoparticles using clove 
      buds extract: Enhancement in antioxidant bio-efficacy and catalytic activity.
PG  - 111153
LID - S0928-4931(20)30605-6 [pii]
LID - 10.1016/j.msec.2020.111153 [doi]
AB  - In present work, we demonstrate a single step environmentally benign approach to 
      synthesize Au/Ag bimetallic nanoparticles (BMNPs) using aqueous extract of Clove 
      buds for the first time. Clove bud's (CB) extract has proficiency to act as a 
      reducing and stabilizing agent for the formation of Au/Ag BMNPs. In presence of 
      extract, Au(III) and Ag(I) are reduced competitively within same solution and 
      produce Au/Ag alloy NPs. The kinetics besides the formation of NPs was studied 
      using UV-visible spectroscopy and efficiency of the extract was monitored by 
      varying contact time, temperature, pH and extract concentration. The electron 
      microscopic studies revealed the presence of NPs with peculiar morphology at 
      alkaline pH. Further, the existence of Au and Ag atoms was investigated using 
      energy dispersive X-ray (EDX), X-ray diffraction (XRD) and cyclic voltammetry 
      (CV) techniques. Fourier transform infrared spectroscopy (FTIR) showed that 
      Eugenol in the extract is mainly responsible for the production of NPs which are 
      also surrounded by various phytochemicals. Zeta potential of all the NPs is found 
      to be negative which prevents their agglomeration due to inter-repulsion and the 
      biosynthesized Au/Ag BMNPs revealed greater catalytic efficiency for the 
      degradation of methyl orange (MO), methylene blue (MB) and reduction of 
      p-nitrophenol (p-NP). Significant enhancement induced by BMNPs compared to 
      individual monometallic nanoparticles (MMNPs) was assigned to the synergistic 
      effect of MMNPs and coating of phytochemicals present in the CB extract.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Sharma, Chanchal
AU  - Sharma C
AD  - Department of Chemistry, Faculty of Science, Dayalbagh Educational Institute, 
      Agra 282005, India.
FAU - Ansari, Sana
AU  - Ansari S
AD  - Department of Chemistry, Faculty of Science, Dayalbagh Educational Institute, 
      Agra 282005, India.
FAU - Ansari, Mohammad Shahnawaze
AU  - Ansari MS
AD  - Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; 
      Advanced Membrane Technology Research Centre (AMTEC), UniversitiTeknologi 
      Malaysia, 81310 Skudai, Johor, Malaysia; School of Chemical and Energy 
      Engineering, UniversitiTeknologi Malaysia, 81310 Skudai, Johor, Malaysia. 
      Electronic address: shah.csengg@gmail.com.
FAU - Satsangee, Soami P
AU  - Satsangee SP
AD  - Department of Chemistry, Faculty of Science, Dayalbagh Educational Institute, 
      Agra 282005, India. Electronic address: deiusic@gmail.com.
FAU - Srivastava, M M
AU  - Srivastava MM
AD  - Department of Chemistry, Faculty of Science, Dayalbagh Educational Institute, 
      Agra 282005, India.
LA  - eng
PT  - Journal Article
DEP - 20200605
PL  - Netherlands
TA  - Mater Sci Eng C Mater Biol Appl
JT  - Materials science & engineering. C, Materials for biological applications
JID - 101484109
RN  - 0 (Antioxidants)
RN  - 0 (Plant Extracts)
RN  - 3M4G523W1G (Silver)
RN  - 7440-57-5 (Gold)
SB  - IM
MH  - Antioxidants
MH  - Gold
MH  - *Metal Nanoparticles
MH  - Plant Extracts
MH  - Silver
MH  - *Syzygium
OTO - NOTNLM
OT  - Au/Ag bimetallic nanoparticles
OT  - Catalytic efficiency
OT  - Clove buds
OT  - Eugenol
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/08/19 06:00
MHDA- 2021/04/27 06:00
CRDT- 2020/08/19 06:00
PHST- 2020/02/11 00:00 [received]
PHST- 2020/05/23 00:00 [revised]
PHST- 2020/06/02 00:00 [accepted]
PHST- 2020/08/19 06:00 [entrez]
PHST- 2020/08/19 06:00 [pubmed]
PHST- 2021/04/27 06:00 [medline]
AID - S0928-4931(20)30605-6 [pii]
AID - 10.1016/j.msec.2020.111153 [doi]
PST - ppublish
SO  - Mater Sci Eng C Mater Biol Appl. 2020 Nov;116:111153. doi: 
      10.1016/j.msec.2020.111153. Epub 2020 Jun 5.