Green Synthesis of Silver Nanoparticles Using Cosmos Sulphureus and Evaluation of Their Antimicrobial and Antioxidant Properties

Malaka, Rajkumari; Hema, Jerusha A; Muthukumarasamy, Narayanan P.; Sambandam, Akilandeswari; Subramanian, Subakanmani; Sevanan, Murugan

doi:10.5101/nbe.v7i4.p160-168

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Our results are supported by different reported studies with sharp peaks at 3 keV in EDX (34)(35)(36)(37). As these AgNPs were synthesized with different plant materials, Acacia nilotica, Citrus sinensis, Cosmos Sulphureus, and Dracocephalum moldavica, still the resultant Ag availability was determined at around 3 keV through EDX analysis.…”

Section: Edx Detectionsupporting

confidence: 92%

Pinus wallichiana-synthesized silver nanoparticles as biomedical agents: in-vitro and in-vivo approach

Khan

Nadhman

et al. 2020

Green Chemistry Letters and Reviews

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The current study aims to assess the aqueous extract of Pinus wallichiana stem for the synthesis of small spherical-shaped (10-30 nm) silver nanoparticles (AgNPs) and their in-vitro and in-vivo biomedical applications. The biosynthesized AgNPs were nonmutagenic and safe at all test doses as per Ames and acute toxicity assay (20, 40, 60, and 80 mg/kg). The percent writhing inhibitory effect generated by AgNPs was 42.51, 50.84, and 59.06 at test doses of 10, 20, and 30 mg/kg, respectively. The percent decreased in gastrointestinal tract motility observed was 41.34%, 32.69%, and 28.48% at 10, 20, and 30 mg/kg, respectively. They also showed a significant antipyretic effect after 1, 2, and 3 h in comparison to normal saline. The AgNPs of P. wallichiana showed good antibacterial activity against Acinetobacter baumannii (60% with MIC 50 = 2.36 mg/ ml and MBC = 5.0 mg/ml). These nanoparticles also possessed good antioxidant activity of 61.77 ± 0.828% and 70.25 ± 0.56% at 400 and 500 µg/ml, respectively and lack phytoagglutinin potential. Because of their high potency as biomedical agents, these nanoparticles can be a good alternative to the currently available drugs and approaches.

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Section: Edx Detectionsupporting

confidence: 92%

Pinus wallichiana-synthesized silver nanoparticles as biomedical agents: in-vitro and in-vivo approach

Khan

Nadhman

et al. 2020

Green Chemistry Letters and Reviews

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“…According to the analysis, the extract P1-L-M, obtained from leaves of Population 1 with 70% methanol, exhibited the strongest DPPH • radical scavenging activity with an IC 50 value of 0.196 ± 0.03 mg/mL ( Table 2 ). Previous studies reported an IC 50 of 135.53 ± 1.78 μg/mL in aqueous leaf extract [ 33 ] and an IC 50 of 129.21 μg/mL in ethyl acetate fractions from C. sulphureus [ 34 ]. The concentration required to inhibit the DPPH • radical shown by the extracts of C. sulphureus was similar to that previously reported.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Cosmos sulphureus Cav. (Asteraceae): Phytochemical Screening, Antioxidant Activity and Chromatography Analysis

Ortega-Medrano

Ceja-Torres

Vázquez-Sánchez

et al. 2023

Plants

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Cosmos sulphureus Cav. (Asteraceae), and endemic plant of Mexico is used in herbal medicine. In this study, the phytochemical composition, phenolic content, and antioxidant activity of ethanolic and methanolic extracts from C. sulphureus leaves and flowers were determined. The phytochemical analysis showed the presence of compounds such as terpenoids, phenolic compounds, tannins, and flavonoids and the absence of alkaloids, saponins, glycosides, and anthraquinones. The experimental results showed that the extracts have high contents of phenolic, flavonoid, and condensed tannins contents. The phenolic compounds identified in the C. sulphureus extracts by high-performance thin-layer chromatography (HPTLC) include phenolic acids such as chlorogenic acid and caffeic acid as well flavonoids such as rutin and quercetin. The C. sulphureus extracts showed a relevant free radical scavenging activity, ferric-reducing antioxidant power, lipid peroxidation inhibition ability, and oxygen radical antioxidant capacity. This research highlights the phytochemical profile and antioxidant activity of phenolic compounds-rich extracts from C. sulphureus leaves and flowers.

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“…Помимо эфирных масел, в литературных источниках описано наличие в космее дваждыперистой других классов соединений, потенциально обладающих антимикробной активностью (флавоноиды, фенолокислоты, дубильные вещества и др.). Однако не описано экспериментальных исследований антимикробной активности суммарных водных и водно-спиртовых экстрактов космеи дваждыперистой [Menut et al, 2000;Malaka et al, 2015;Saleem et al, 2019].…”

Section: Introductionunclassified

Antibacterial activity of extracts from the flowers of the double-feathered cosmea (Cosmos bipinnatus Cav.) in relation to some clin-ical isolates

Yurtayeva,

Utyaganova,

Kulichenko

et al. 2023

Вест. ПГУ. Биол.

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The article is devoted to study the antibacterial activity of alcoholic and aqueous extracts from the flowers of two varieties of double-feathered cosmea (Cosmos bipinnatus Cav.) – ‘Rosea’ and ‘Dazzler’ in relation to clinical strains of S. aureus II, S. pneumonia UEV-1, E. coli 89, K. rpeimopiae SES 11/02. The conducted studies have shown that the studied extracts, both with respect to gram-positive and gram-negative strains, exhibit bacteriostatic activity. High bacteriostatic activity of extracts No. 5, 11, 12 was detected with respect to S. aureus at a concentration of 0.08 mcg/ml. Extract No. 6 showed antimicrobial action only at high concentrations of 0.96-0.8 mcg/ml. The activity against S. pneumoniae was shown by extract No. 6 in the concentration range of 0.96-0.32 mcg/ml, it was inferior in antibacterial effect to the comparison drug in high dosages. High bacteriostatic activity was detected in extract No. 12, with respect to E. coli, where the degree of growth suppression relative to the control was 70%, which corresponded to the minimum studied concentration (0.02 mcg/ml). The comparison drug was inferior in action to extract No. 12 and demonstrated a comparable effect at a concentration of 128 mcg/ml. In relation to K. pneumoniae, extract No. 12 showed the best result at the lowest concentration of 0.02 mcg/ml, it showed a growth suppression percentage of 60%, which is comparable to the comparison drug ceftriaxone at a concentration of 32 mcg/ml. The leader was an aqueous extract No. 12 obtained from the flowers of the double-feathered cosmea of the Dazzler variety, which showed bacteriostatic activity against gram-positive and gram-negative test cultures. The most intense effect of the studied extracts was shown in relation to gram-negative flora.

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Green Synthesis of Silver Nanoparticles Using Cosmos Sulphureus and Evaluation of Their Antimicrobial and Antioxidant Properties

Cited by 4 publications

References 23 publications

Pinus wallichiana-synthesized silver nanoparticles as biomedical agents: in-vitro and in-vivo approach

Pinus wallichiana-synthesized silver nanoparticles as biomedical agents: in-vitro and in-vivo approach

Characterization of Cosmos sulphureus Cav. (Asteraceae): Phytochemical Screening, Antioxidant Activity and Chromatography Analysis

Antibacterial activity of extracts from the flowers of the double-feathered cosmea (Cosmos bipinnatus Cav.) in relation to some clin-ical isolates

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