Lippia javanica: a cheap natural source for the synthesis of antibacterial silver nanocolloid

Kumar, Santosh; Singh, Mukesh; Halder, Dipankar; Mitra, Atanu

doi:10.1007/s13204-015-0507-6

Cited by 17 publications

(6 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This can be attributed to minimum polydispersion of the synthesized nanoparticles. Similar results were obtained when silver nanoparticles were synthesized from Lippia javanica (Kumar et al, 2015) implying that stabilizing molecules or functional groups from the two plants could be the same, or the size and shape of the synthesized nanoparticles at the specified conditions were the same. UV-Vis analysis was also done for the silver nanoparticles synthesized at different pH and the nanoparticles at different pH were given maximum formation time before scanning them under UV-vis.…”

Section: Ultra Violet-visible Analysissupporting

confidence: 69%

Synthesis of silver nanoparticles using wild Cucumis anguria: Characterization and antibacterial activity

Netai¹,

Joyce²,

Nyoni³

et al. 2017

Afr. J. Biotechnol.

View full text Add to dashboard Cite

In the present study silver nanoparticles were synthesized using wild Cucumis anguria leaf extract using the green route which is a simple, cost-effective and an environmentally friendly technique. When the aqueous silver ions were exposed to the wild C. anguria leaf extract, they were reduced and this resulted in the formation of silver nanoparticles. The conditions of synthesis were optimized by adjusting the pH, time and amount of leaf extract. The synthesized silver nanoparticles were characterized by different techniques, namely ultra-violet visible spectroscopy, Fourier Transform Infrared Spectroscopy, X-ray diffraction and transmission electron microscopy. The ultra violet-visible spectrum of the synthesized silver nanoparticles shows a maximum peak at 420 nm. Fourier transform infrared spectroscopy results show the presence of alcohols, aromatics and amines suggesting the presence and binding of proteins with silver nanoparticles. Transmission electron microscopy analysis shows that the silver nanoparticles synthesized were spherical in shape with their sizes ranging between 11 and 27 nm depending on the pH conditions. X-ray diffraction analysis results show the presence of silver metal nanoparticles and their crystalline nature. The antibacterial activity of the silver nanoparticles synthesized was evaluated against Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) bacterial and kanamycin was used as a control. The green chemistry route has proven that silver nanoparticles can be synthesized using C. anguria leaf extract in which biomolecules effectively act as reducing and capping agents.

show abstract

Section: Ultra Violet-visible Analysissupporting

confidence: 69%

Synthesis of silver nanoparticles using wild Cucumis anguria: Characterization and antibacterial activity

Netai¹,

Joyce²,

Nyoni³

et al. 2017

Afr. J. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…are used as reducing agents and stabilizers to control the crystal growth (Bhuyan et al., 2015; Çolak & Karakose, 2017; Davar et al., 2015; Santhoshkumar et al., 2017; Zare et al., 2017). The extracts of various plant parts are rich in polyphenols and amino acids that act as reducing agents and stabilizers, respectively (Stan et al., 2015; Kumar et al., 2016; Kumari et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Bionanocomposite films of agar incorporated with ZnO nanoparticles as an active packaging material for shelf life extension of green grape

Kumar

Boro

Ray

et al. 2019

Heliyon

Self Cite

180

View full text Add to dashboard Cite

Zinc oxide nanoparticles (ZnONPs) were synthesized by green protocol using Mimusops elengi fruit extract as a novel natural resource. The synthesized particles were polyhedral (mostly hexagonal) in shape between 14 - 48 nm with an average size of 24.75 ± 0.78 nm. Nano zinc oxide (ZnO) at concentrations of 2% (w/w) and 4% (w/w), were incorporated into agar matrix. Solution casting method was used to fabricate the bionanocomposite films with ZnONPs in agar. Surface morphology, particle size, crystallinity, thermal stability and functional groups were determined using SEM, TEM, XRD, TGA and FTIR, respectively. Loading of ZnONPs in composite films improved thermal stability, elongation and film thickness, whereas tensile strength and transparency decreased. The films were used for packaging of green grapes, and appearance of the fruit was observed during ambient storage. Grapes packaged in composite films showed fresh appearance up to 14 and 21 days in ambient conditions for 2% (w/w) and 4% (w/w) ZnONPs in films, respectively. The results showed the potential of the fabricated agar-ZnO nanocomposite film as a promising packaging material to enhance postharvest shelf-life of fresh fruits like green grapes.

show abstract

“…The antibacterial effectiveness of AgNPs is likewise highly correlated with their concentration. The higher the NP concentration, the stronger the antibacterial action, and vice versa [ 174 , 175 ]. MICs of AgNPs are at odds with bacterial food pathogens, such as Lactobacillus acidophilus and Lactobacillus fermentum , and have recently varied from 15 to 90 mg/mL [ 176 ].…”

Section: Applications Of Plant-derived Nanoparticles In the Food Indu...mentioning

confidence: 99%

Application of Plant-Derived Nanoparticles (PDNP) in Food-Producing Animals as a Bio-Control Agent against Antimicrobial-Resistant Pathogens

et al. 2022

View full text Add to dashboard Cite

Antibiotics are regularly used in animal husbandry to treat diseases. This practice is beneficial to animals’ health and helps ensure food security. However, the misuse of antibiotics, especially in food-producing animals, has resulted in the advent of antimicrobial resistance (AMR) and its dissemination among foodborne pathogens. The occurrence of AMR in bacteria pathogens that cause infections in animals and those associated with food spoilage is now considered a global health concern affecting humans, animals and the environment. The search for alternative antimicrobial agents has kindled the interest of many researchers. Among the alternatives, using plant-derived nanoparticles (PDNPs) for treating microbial dysfunctions in food-producing animals has gained significant attention. In traditional medicine, plant extracts are considered as safe, efficient and natural antibacterial agents for various animal diseases. Given the complexity of the AMR and concerns about issues at the interface of human health, animal health and the environment, it is important to emphasize the role of a One Health approach in addressing this problem. This review examines the potential of PDNPs as bio-control agents in food-producing animals, intending to provide consumers with microbiologically safe food while ensuring food safety and security, better health for animals and humans and a safe environment.

show abstract

Lippia javanica: a cheap natural source for the synthesis of antibacterial silver nanocolloid

Cited by 17 publications

References 35 publications

Synthesis of silver nanoparticles using wild Cucumis anguria: Characterization and antibacterial activity

Synthesis of silver nanoparticles using wild Cucumis anguria: Characterization and antibacterial activity

Bionanocomposite films of agar incorporated with ZnO nanoparticles as an active packaging material for shelf life extension of green grape

Application of Plant-Derived Nanoparticles (PDNP) in Food-Producing Animals as a Bio-Control Agent against Antimicrobial-Resistant Pathogens

Contact Info

Product

Resources

About