Eco-Friendly Synthesis and Antimicrobial Activity of Silver Nanoparticles Using Dracocephalum moldavica Seed Extract

Pak, Zahra Haghighi; Abbaspour, Hossein; Karimi, Naser; Fattahi, Ali

doi:10.3390/app6030069

Cited by 43 publications

(8 citation statements)

References 49 publications

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“…Their efficiency to improve solubility, half-life, and sustained release of drugs find its application more appropriate in drug delivery [5]. In the current situation, the nano-biotechnology is one among the most energetic platform, explore the contemporary substantial discipline where the plants and various plant products find an imperious use in the fabrication of nanoparticles [6]. As vast applications of nanomaterials in various fields such as electronic, magnetic, optoelectronics, and information storage are well established.…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly approach in synthesis of silver nanoparticles and evaluation of optical, surface morphological and antimicrobial properties

Selvaraj¹,

Sagadevan

Muthukrishnan

et al. 2019

J Nanostruct Chem

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Silver nanoparticles (Ag NPs) were synthesized using Alternanthera sessilis leaf and Oregano root extract in an eco-friendly fashion and their significant physicochemical and optochemical properties were ascertained for nano-defined characteristics. The UV-visible spectrum showed a single and distinct absorbance peak at 433 nm (Alternanthera sessilis) and 425 nm (Oregano), typical SPR (surface plasmon resonance) for silver. Structural studies revealed nano-crystal with face centre cubic (FCC) symmetry with monodispersed nature. SEM studies showed spherical-shaped particles and the purity determined from EDX spectrum. The synthesized Ag NPs showed that antibacterial activity was studied. There was a significant inhibitory effect toward clinically important pathogens viz. B. subtilis, S. aureus, P. aeruginosa, and E. coli exposed to Ag NPs at different concentrations.

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Section: Introductionmentioning

confidence: 99%

Eco-friendly approach in synthesis of silver nanoparticles and evaluation of optical, surface morphological and antimicrobial properties

Selvaraj¹,

Sagadevan

Muthukrishnan

et al. 2019

J Nanostruct Chem

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“…The bands at 1450 to 1258 cm −1 were because of the CC, CN, and CO bonds and these functionalities were present in the Rocephin structure. The band at 1015.52 cm −1 indicated OAgO vibration (Haghighi Pak et al, 2016) while the band at 749.52 cm −1 was due to stretching vibration of AgOAg bonds (Vanaja et al, 2014). The two small bands positioned at 609.13 and 513.97 cm −1 were linked to AgO and the linkage between AgNPs and Rocephin at the active site However, the interaction and merging of the Rocephin with silver nanocomposite absorption bands reduced the absorption intensities in the CO, NH, and OH groups (Kumari et al, 2020).…”

Section: Resultslts and Discussionmentioning

confidence: 99%

Rocephin‐graphene oxide‐silver nanocomposites: A versatile platform for biomedical applications

Kashif,

Ahmed,

Altaf

et al. 2024

Microscopy Res & Technique

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For many years, the synthesis of graphene oxide (GO) had involved exfoliating graphite flakes, and the methods applied were expensive and time‐consuming. Thus, an attempt had been made to create an inventive, less expensive method for the synthesis of GO using unrefined, raw carbon‐containing material. Modified Hummer's method was used to prepare GO from banana peel. In addition, the metallic silver nanocomposite was also synthesized along with laoding of drug Rocephin where they interact with each other through electrostatic hydrogen bond interaction. The degree of crystallinity and the crystallite size were through x‐ray diffraction (XRD) analysis and the crystallite size of AgNPs was found to be 40.40 nm. The scanning electron microscopy (SEM) analysis shows that the morphology of the GO gradually changes with the addition of AgNPs and Rocephin. A blue shift was seen in the absorbance maxima of the raw carbon upon the conjugation of Rocephin in UV analysis. The Fourier‐transform infrared spectroscopy, and energy dispersive X‐ray (EDX) spectroscopy were used to determine the chemical composition of the samples. Furthermore, a broad biological screening of the synthesized samples had been carried out following the total reducing power (TRP), total antioxidant capacity (TAC), antibacterial, antifungal, MTT (Cytotoxicity of biologically synthesized silver nanoparticles in MDA‐MB‐231 human breast cancer cells) cell viability, brine shrimp lethality, and hemolytic protocols. Significant results were obtained, and the Rocephin‐GO‐AgNPs had depicted promising activity as compared with their counterparts.Research Highlights The GO was prepared from the raw carbon extracted from banana peels and was used as a substrate for the synthesis Graphene oxide silver nanoparticles (GO‐AgNPs) and Rocephin‐loaded graphene oxide silver nanoparticles (Rocephin‐GO‐AgNPs) The structural and compositional analysis of the nanomaterial was carried out, and they were screened for several biomedical applications. The Rocephin‐GO‐AgNPs exhibit the highest activity as compared with their counterparts.

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“…al. 13 . The activity of synthesized compounds (in %) was compared with the activity of the standard drug considering its activity as 100%.…”

Section: Antibacterial Analysismentioning

confidence: 99%

Silver nanorod: green synthesis and their electronic, optical and antibacterial properties

Pant,

Shrestha

2024

Sci World

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Synthesis of nanomaterials has been the subject of a lot of interests due to its commercial demands and wide applicability in various fields such as chemistry, physics, biology, material science, engineering, medicine etc. This paper reports the green synthesis of silver nanorod. For synthesis, silver nitrate solution was used as a metal precursor and aqueous extract of root of Beta vulgaris was used as a reducing agent. Four different sets of samples were synthesized by varying the reduction time to study the size dependent electronic and optical properties. The formation of nanostructure was confirmed by presence of surface plasmon resonance in absorption spectra. Optical band gap calculation was done by using absorption spectroscopy. Absorption spectroscopy showed that the maximum absorption was red shifted when the reaction time was increased, indicating the increasing size of material. Similarly, it was found that the optical band gap was decreased with increasing reduction time. Moreover, the antimicrobial activity of synthesized nano silver was studied against both the gram negative (Pseudomonas aeruginosa, Escherichia coli) as well as gram positive bacteria (Staphylococcus aureus).

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Eco-Friendly Synthesis and Antimicrobial Activity of Silver Nanoparticles Using Dracocephalum moldavica Seed Extract

Cited by 43 publications

References 49 publications

Eco-friendly approach in synthesis of silver nanoparticles and evaluation of optical, surface morphological and antimicrobial properties

Eco-friendly approach in synthesis of silver nanoparticles and evaluation of optical, surface morphological and antimicrobial properties

Rocephin‐graphene oxide‐silver nanocomposites: A versatile platform for biomedical applications

Silver nanorod: green synthesis and their electronic, optical and antibacterial properties

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