Green Synthesis of Copper Oxide Nanoparticles from Camellia sinensis Extract: Effects of Calcination Temperatures on Antimicrobial Activity DOI

U Manimehala,

Sneha Asha,

Merin Tomy

et al.

Biochemical and Biophysical Research Communications, Journal Year: 2025, Volume and Issue: unknown, P. 151963 - 151963

Published: May 1, 2025

Language: Английский

Biogenic Synthesis of Copper Oxide Nanoparticles from Aloe vera: Antibacterial Activity, Molecular Docking, and Photocatalytic Dye Degradation DOI Creative Commons

Sabeeha Jabeen,

Vasi Uddin Siddiqui,

Shashi Bala

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(28), P. 30190 - 30204

Published: July 1, 2024

Green synthesis methods offer a cost-effective and environmentally friendly approach to producing nanoparticles (NPs), particularly metal-based oxides. This study explores the green of copper oxide using Aloe vera (Aloe barbadensis Miller) leaf extract. The characterization revealed unique sago-shaped morphology by field-emission scanning electron microscopy X-ray diffraction analysis. Distinctive metal–oxygen bonds at 521 601 cm–1 were confirmed Fourier-transform infrared (FT-IR) spectroscopy. Furthermore, UV–visible spectroscopy absorbance 248 nm, suggesting transitions across energy bands varying surface conduction electrons. band gap value indicated presence quantum confinement effects, which probably caused distinctive structure biogenic NPs. Additionally, molecular docking studies carried out against key proteins Salmonella typhi Listeria monocytogenes, namely, listeriolysin O (PDB ID: 4CDB), internalin (InlA) 1O6T), effector protein (SopB) 4DID), YfdX 6A07) AutoDock 4.2. results binding energies S. L. monocytogenes proteins, indicating potential interactions establishing foundation for further in-depth understanding basis underlying observed antibacterial effects in vitro typhi, Klebsiella pneumoniae, Pseudomonas aeruginosa, monocytogenes. Antibacterial activity evaluation yielded impressive results, with CuO NPs displaying significant exhibiting zones inhibition values 13 ± 0.02 15 0.04 mm, respectively. Moreover, demonstrated remarkable photocatalytic efficacy, resulting degradation 77% methylene blue dye when exposed UV irradiation. highlighted green-synthesized derived from A. their morphology, interesting spectroscopic properties, promising activities.

Language: Английский

Citations

25
Green synthesis of Ag/CuO and Ag/ TiO2 nanoparticles for enhanced photocatalytic dye degradation, antibacterial, and antifungal properties DOI Creative Commons

V. Helen Rathi,

Ambrose Rejo Jeice, Kumarasamy Jayakumar

et al.

Applied Surface Science Advances, Journal Year: 2023, Volume and Issue: 18, P. 100476 - 100476

Published: Oct. 20, 2023

In the context of synthesizing metal doped oxide nanoparticles (NPs), green synthesis emerges as a reliable, sustainable, environmentally-friendly, and exceptional alternative to more efficient conventional chemical methods. this study, we explored co-precipitation method performed for Caesalpinia pulcherrima (C.pulcherrima) flower extract high percentage hydroxyl functional groups on terpenoid derivatives, reducing encapsulating agents, stability Ag/CuO Ag/ TiO2 NPs. The XRD patterns provided evidence highly crystalline structure monoclinic CuO, tetragonal crystal structure, face-centered cubic Ag metal, obtained improve nanosized 6 8 nm, which structural defects in materials were determined by scanning transmission electron microscopy (SEM TEM), well X-ray photoelectron spectroscopy (XPS) energy-dispersive (EDX) analyze. existence ions (Ag+), Ti4+ ions, Cu2+ CuO caused reduction carbonyl hydroxide groups, thereby facilitating formation nanostructures, demonstrated XPS Fourier transform infrared (FTIR). band gap analysis Ag/TiO2 NPs revealed that they increased catalytic activity methylene blue (MB) dye degradation efficiency achieved 86 94 %, respectively. Comparatively, with has synergistic effect leading effective antimicrobial against P. aeruginosa E. coli infections.

Language: Английский

Citations

31
Nano-green: Harnessing the potential of plant extracts for sustainable antimicrobial metallic nanoparticles DOI

Pratibha Kaushal,

Dipak Maity, Rajendra Awasthi

et al.

Journal of Drug Delivery Science and Technology, Journal Year: 2024, Volume and Issue: 94, P. 105488 - 105488

Published: Feb. 17, 2024

Language: Английский

Citations

17
Unveiling sustainable, greener synthesis strategies and multifaceted applications of copper oxide nanoparticles DOI
Maghimaa Mathanmohun, Suresh Sagadevan, Md Zillur Rahman

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1305, P. 137788 - 137788

Published: Feb. 11, 2024

Language: Английский

Citations

14
Visible light photocatalytic dye degradation, antimicrobial activities of green synthesized Ag/TiO2 nanoparticles DOI Creative Commons

H.S. Rathi,

Ambrose Rejo Jeice

Chemical Physics Impact, Journal Year: 2024, Volume and Issue: 8, P. 100537 - 100537

Published: Feb. 15, 2024

The co-precipitation approach was used in this study to synthesize Ag/TiO2 nanoparticles (NPs) using an extract of the flowers from C. pulcherrima. As a reducing agent and stabilizer during synthesis process, flower performed dual function. surface plasmon resonance diffuse reflectance spectroscopy spectrum provided assurance that Ag+, Ti4+ ions were significantly reduced. bandgap NPs revealed they are suitable for optical catalytic applications. analyzed X-ray diffraction (XRD) assess their size crystal structure. Through scanning transmission electron microscopy (SEM TEM), shape changes studied. Energy-dispersive (EDX) analysis employed investigate elements' chemical composition produced NPs. A Fourier transform infrared (FTIR) carried out identify functional groups might be present plant involved reduction, stabilization, bonding processes. photocatalytic disintegration hazardous organic dye pollutant methylene blue studied 40 minutes while being exposed visible light. create efficiency degradation rate 94%. Additionally, then antimicrobial capacity assessed, it discovered most effective against infections P. aeruginosa E. coli.

Language: Английский

Citations

12
Blood-liquid extract inhibits bacteria through diffusion-mediated nano-CuO DOI
Duha A. Kadhim, Muslim A. Abid,

L.A. Latif

et al.

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 37, P. 101105 - 101105

Published: Feb. 1, 2024

Language: Английский

Citations

12
Investigation of antibacterial, antioxidant, cytotoxicity and photocatalytic dye degradation activity of green synthesized copper oxide nanoparticles using Ceropegia debilis plant extract DOI

M. Dhanalakshmi,

Venkatramana Losetty

Clean Technologies and Environmental Policy, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 28, 2024

Language: Английский

Citations

12
Antibacterial Properties of Copper Oxide Nanoparticles (Review) DOI Open Access
Sergey V. Gudkov, Dmitriy E. Burmistrov,

Polina A. Fomina

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(21), P. 11563 - 11563

Published: Oct. 28, 2024

The use of metal and oxide nanoparticles is frequently regarded as a potential solution to the issue bacterial antibiotic resistance. Among proposed range with antibacterial properties, copper are particular interest. Although properties have been known for considerable period time, studies on effects nanomaterials respect biological systems attracted attention in recent years. This review presents summary nanoparticles, mechanisms by which effect realized, key reported methods modifying these improve their activity. A comparative analysis effectiveness presented depending type microorganism, shape Gram classification bacteria based data from published sources. In addition, addresses activities including antifungal cytotoxic well “antioxidant” According conducted literature data, it can be concluded that significant bacteriostatic wide microorganisms and, some cases, contribute inhibition fungal growth. At same sensitivity Gram-positive was often higher than Gram-negative bacteria.

Language: Английский

Citations

10
Biogenic nanoparticles for managing salinity stress-related crop and environmental risks: realistic applications and challenges DOI Creative Commons
Abhishek Singh,

Shreni Agrawal,

Vishnu D. Rajput

et al.

Discover Sustainability, Journal Year: 2025, Volume and Issue: 6(1)

Published: Feb. 19, 2025

Language: Английский

Citations

2
Green Synthesis and Characterization of Ag/CuO Nanoparticles: Exploring Their Antifungal, Antimicrobial, and Cytotoxic Properties DOI Creative Commons

Mohammad Javad Javid‐Naderi,

Zahra Sabouri, Amin Jalili

et al.

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104147 - 104147

Published: March 1, 2025

Language: Английский

Citations

2