Article
Multidisciplinary Sciences
Walelign Wubet Melkamu, Legesse Terefe Bitew
Summary: The green synthesis of silver nanoparticles using Hagenia Abyssinica plant leaf extract was successfully achieved through bio-reduction of silver nitrate. Characterization techniques such as UV-Vis spectroscopy, FTIR spectroscopy, and XRD analysis confirmed the structure and activities of the synthesized AgNPs. The AgNPs showed antimicrobial and antioxidant activities, indicating potential applications in water treatment, biomedicine, and nanotechnology.
Article
Nanoscience & Nanotechnology
Adisu Girma Zewudie, Enyew Amare Zereffa, Teshome Abdo Segne, H. C. Ananda Murthy, C. R. Ravikumar, Dhanalakshmi Muniswamy, Bayissa Bekele Binagdie
Summary: In this study, Ag/bentonite, ZnO/bentonite, and Ag/ZnO/bentonite nanocomposites were synthesized using Hagenia abyssinica plant extract and their antibacterial properties were investigated. The synthesized nanocomposites were characterized and confirmed to have different phases. The nanocomposites exhibited smaller average crystallite sizes compared to the pure nanoparticles and activated bentonite. The presence of functional groups on the surface of the nanocomposites was revealed by Fourier transform infrared spectral analysis. The nanocomposites showed promising antibacterial activities against E. coli and S. aureus strains, with Ag/ZnO/bentonite showing the highest inhibition zone and bactericidal concentration values.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2023)
Article
Water Resources
Belete Yilma Hirphaye, Nafikot Berhanu Bonka, Alemu Mekonnen Tura, Gada Muleta Fanta
Summary: The present study focuses on the synthesis of magnesium oxide nanoparticles using Hagenia abyssinica female flower aqueous extract. The nanoparticles were characterized by various methods, including visual observation, UV-Vis, XRD, FTIR, and SEM. The optimum parameters for synthesis were determined, and the nanoparticles exhibited antibacterial activity against Staphylococcus aureus and Escherichia coli.
APPLIED WATER SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Dagme Zewde, Belete Geremew
Summary: This study investigates the green synthesis and characterization of ZnO nanoparticles, as well as their applications in water treatment and dye degradation. The synthesized nanoparticles showed excellent photocatalytic degradation and antibacterial activity.
ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY
(2022)
Article
Biochemistry & Molecular Biology
Diego Alberto Lomeli-Rosales, Adalberto Zamudio-Ojeda, Oscar Kevin Reyes-Maldonado, Morelia Eunice Lopez-Reyes, Georgina Cristina Basulto-Padilla, Edgar Jose Lopez-Naranjo, Victor Manuel Zuniga-Mayo, Gilberto Velazquez-Juarez
Summary: In this study, the synthesis of metallic nanoparticles using extracts from Capsicum leaves was investigated. The leaf extract demonstrated the best results for the synthesis of gold and silver nanoparticles. The synthesized nanoparticles exhibited stability and ease of synthesis, and showed antioxidant and antimicrobial activities.
Article
Biotechnology & Applied Microbiology
Belete Geremew, Dagme Zewde
Summary: In this study, Hagenia abyssinica leaf powder (HALP) adsorbent was used to successfully remove methyl violet dye from aqueous solution. The optimum adsorption conditions were determined as 0.2 g adsorbent dose, 100 mg/L dye solution, 50 min contact time, and a solution pH of 6. The adsorption process followed the Langmuir model with a high adsorption capacity. The thermodynamic data indicated that the adsorption process is endothermic, spontaneous, and exhibits randomness at the HALP/solution interface.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Multidisciplinary
Temesgen Achamo, Enyew Amare Zereffa, H. C. Ananda Murthy, Venkatesha Perumal Ramachandran, Ruthramurthy Balachandran
Summary: Copper oxide nanoparticles (CONPs) with desirable properties, including semiconductor nature, antimicrobial and antioxidant potential, as well as DNA binding activity, were successfully synthesized using ethanolic leaf extract of the indigenous plant Artemisia abyssinica.
GREEN CHEMISTRY LETTERS AND REVIEWS
(2022)
Article
Biochemistry & Molecular Biology
Shifaa O. Alshammari, Sabry Younis Mahmoud, Eman Saleh Farrag
Summary: This study synthesized copper nanoparticles (CuNP) using the root extract of Rhatany as a reducing and capping agent. The maximum production of CuNP was observed at 70°C after a reaction time of 3 hours. The CuNP showed antimicrobial efficacy against drug-resistant bacteria and fungus, and also exhibited significant antioxidant capacity. The green synthesized CuNP are cost-effective and non-toxic, making them applicable in various fields such as agriculture and biomedical applications.
Article
Integrative & Complementary Medicine
Zemene Demelash Kifle, Seyfe Asrade Atnafie, Tesfaye Yimer Tadesse, Teshome Fentik Belachew, Birhanu Berihun Kidanu
Summary: The methanol crude extract of Hagenia abyssinica leaves showed significant antidiarrheal effects in mice, with a reduction in intestinal motility and volume of intestinal contents. The extract exhibited the highest antidiarrheal activity at a dose of 400 mg/kg, comparable to the standard drug loperamide.
EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE
(2021)
Article
Environmental Sciences
Abdulkerim Hatipoglu, Ayse Baran, Cumali Keskin, Mehmet Firat Baran, Aziz Eftekhari, Sabina Omarova, Dawid Janas, Rovshan Khalilov, Mehmet Tevfik Adican, Sevgi Irtegun Kandemir
Summary: In this study, plant-based silver nanoparticles were synthesized using white radish leaf extract and their antimicrobial and anticancer activities were evaluated. The results showed that the synthesized nanoparticles exhibited strong inhibition against pathogenic bacteria and cancer cell lines, indicating their promising potential in biomedical applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Ceramics
Z. Mohamed Riyas, R. Gayathri, M. Ramesh Prabhu, K. Velsankar, S. Sudhahar
Summary: Eco-friendly synthesis of Mg-doped ZnO nanoparticles using Ficus religiosa leaf extract was successfully achieved, and the nanoparticles showed good thermal stability and biomedical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
N. Revathi, M. Sankarganesh, J. Dhaveethu Raja, J. Rajakanna, O. Senthilkumar
Summary: Plectranthus amboinicus leaf extract was used to synthesize MnO2 nanoparticles, which showed spherical structures with a grain size of 7.5 nm. These nanoparticles exhibited strong antibacterial and antifungal activities, as well as free radical scavenging activity. The study highlights the simple and eco-friendly synthesis of MnO2 nanoparticles using plant extract.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Madeshwaran Karthik, Cholaraj Ragunath, Pavithara Krishnasamy, Darthi Queen Paulraj, Venkatachalam Ramasubramanian
Summary: The objective of this study was to examine the antibacterial and antioxidant properties of Zinc oxide (ZnO) nanoparticles synthesized using the Annona muricata (Am) plant extract. The results showed that the ZnO-Am nanoparticles demonstrated excellent antibacterial activity against various strains of bacteria, and also exhibited strong antioxidant properties. These findings may lead to the development of new antibacterial and antioxidant products.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Abdulaziz A. Al-Askar, Amr H. Hashem, Nadeem I. Elhussieny, Ebrahim Saied
Summary: In this study, zinc oxide nanoparticles (ZnONPs) were biosynthesized for the first time using the leaf extract of Pluchea indica. The biosynthesized ZnONPs showed antimicrobial efficacy against various microorganisms and exhibited excellent photocatalytic activity. These findings suggest that environmentally friendly synthesized ZnONPs can be applied in environmental and biomedical applications.
Article
Materials Science, Multidisciplinary
Jabbar Anshiba, Mani Poonkothai, Pushparaj Karthika, Raja Mythili
Summary: The present investigation confirmed the synthesis and characterization of AgNPs using Platycladus orientalis leaf extracts, with a measured average size of 8 nm. The synthesized AgNPs demonstrated effective antimicrobial activity against selected bacterial and fungal isolates.
Article
Chemistry, Inorganic & Nuclear
K. M. Mamatha, V. Srinivasa Murthy, C. R. Ravikumar, H. C. Ananda Murthy, Mir Waqas Alam, K. Vinutha, A. A. Jahagirdar
Summary: Lanthanum oxide nanoparticles (LONPs) were prepared and characterized for their morphology, crystallinity, and band gap. The electrochemical sensing ability of LONPs towards carboxymethyl cellulose material in eye drops was investigated and found to be promising.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kiflom Gebremedhn Kelele, H. C. Ananda Murthy, Ruthramurthy Balachandran, Aschalew Tadesse, Yosef Nikodimos, Lemma Teshome Tufa, Jaebeom Lee
Summary: Barium strontium titanate (BST) and Mo-doped BST nanopowders were synthesized and characterized in this study. The incorporation of Mo affected the crystal size, specific surface area, and pore structure of BST. The presence of Mo in BST was confirmed by XPS, EDS, Raman spectroscopy, and FTIR spectroscopy.
Article
Chemistry, Physical
Fekadu Muleta, Tegene Desalegn, Taye B. Demissie, Rajalakshmanan Eswaramoorthy, H. C. Ananda Murthy, Kah-Yoong Chan, Bianca L. Davids, Kennedy J. Ngwira
Summary: In this study, novel heteroleptic Cu(II) and Zn(II) complexes were synthesized using two semicarbazone-based derivative ligands. The complexes were characterized by various methods, and their potential for scavenging free radicals and antibacterial effects were examined. The results show that the complexes exhibit good antibacterial and antioxidant activities, with [Zn(L1)(L2)] complex showing the highest binding potential. This study highlights the significance of multi-semicarbazone ligands and their complexes for enhancing the biological activities of metal complexes.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
B. S. Surendra, K. Gurushantha, K. S. Anantharaju, M. Rudresh, N. Basavaraju, N. Raghavendra, A. A. Jahagirdar, H. M. Somashekar, H. C. Ananda Murthy
Summary: In this study, magnesia co-stabilized zirconia (ZrO2:Mg2+) nanoparticles were synthesized using a green combustion route and their tailored characteristics for thermal barrier coating (TBC) applications were investigated. The nanoparticles were coated on the surface of an IC engine using a plasma spread coating technique, resulting in excellent thermal insulation properties. Photocatalytic studies were conducted on the doped nanoparticles for the photodegradation of Acid Green (AG) dye, achieving high degradation rates under UV-Visible light irradiation. The doped nanoparticles also showed efficient photoluminescence emission properties and excellent capacitance measurements for potential use in display and chemical sensing applications.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Balachandran Ruthramurthy, Kiflom Gebremedhn Kelele, H. C. Ananda Murthy, Kar Ban Tan, Kah Yoong Chan, Dhanalakshmi Muniswamy, Aschalew Tadesse, Suresh Ghotekar
Summary: Due to the growing demand and wastage of energy, there is a need for storing energy efficiently. Capacitors are materials designed for this purpose, and ferroelectric materials, particularly perovskites, are preferred for capacitor applications. Barium strontium titanate (BST) nanomaterial, a type of perovskite material, has been found to possess improved dielectric properties when doped with metal/metal oxides. Multielement doping or codoping has shown even better dielectric properties in BST compared to unidoping. Studies on codoped BST capacitors have demonstrated their potential use as efficient and effective energy storage devices. We believe that this work contributes to the understanding of the enhancement of dielectric properties in codoped BST nanomaterials.
JOURNAL OF CHEMISTRY
(2023)
Article
Integrative & Complementary Medicine
Farideh Azarbani, Faranak Hadi, Samira Jafari, H. C. Ananda Murthy, Abul Kalam Azad
Summary: The essential oils (EOs) extracted from the flowers and leaves of Ferulago macrocarpa were analysed using GC-MS technique. The flower EOs exhibited potent activities against DPPH, Staphylococcus aureus, and Bacillus cereus, while the leaf EOs showed mild antiradical effects and no activity against the tested pathogens.
JOURNAL OF HERBAL MEDICINE
(2023)
Article
Materials Science, Multidisciplinary
Workneh Mechal Shume, Enyew Zereffa, C. R. Ravikumar, Sanaulla Pathapalya Fakrudeen, Kah-Yoong Chan, H. C. Ananda Murthy
Summary: Magnetically separable lanthanum modified Ni-Zn spinel ferrite nanoparticles and Ni0.75Zn0.25La0.06Fe1.94O4@rGO nanocomposites were synthesized for the degradation of binary organic pollutants. The nanoparticles exhibited a nearly spherical shape and homogeneous distribution on rGO sheets. The nanocomposites showed high photocatalytic activity in degrading both dyes (methyl orange and methylene blue) under visible light.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Haji Kedir, Dereje Tsegaye, Buzuayehu Abebe, H. C. Ananda Murthy, C. R. Ravikumar, S. Giridhar Reddy
Summary: Cobalt and copper co-doped ZnO composites were synthesized by the sol-gel solution combustion method and showed continuous electron-hole transfer and absorbance of visible light. These properties are crucial for pollutant catalytic reduction.
Article
Chemistry, Physical
A. Naveen Kumar, Ramachandra Naik, V. Revathi, H. C. Ananda Murthy, H. P. Nagaswarupa, C. R. Ravikumar, G. V. Ashok Reddy, Ramyakrishna Pothu, Rajender Boddula, H. B. Lokesh, Vijaya Shanbhag
Summary: La10Si6O27:Tb3+ (1-9 mol%) materials were synthesized and characterized for their photoluminescent, electrochemical, and photocatalytic properties. Even with Tb3+ doping, the materials maintained crystalline and single phases. PL analysis showed tunable emission and maximum intensity at optimized concentration. The La10Si6O27:Tb3+ (9 mol%) electrode demonstrated sensing properties for paracetamol and penegra with an average specific capacitance of 262 Fg(-1). Additionally, the La10Si6O27:Tb3+ (5 mol%) material exhibited photocatalytic activity for the degradation of direct green dyes.
APPLIED SURFACE SCIENCE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Adam Mengistu, Mohammed Naimuddin, Buzuayehu Abebe
Summary: This study used a nanometer-scale green synthesis method to obtain nanoparticles and nanocomposites with antibacterial properties. The synthesis approach was proven to be novel and successful in synthesizing a copper-doped ZnO nanocomposite. Various analyses confirmed the potential of the synthesized materials for biological applications, particularly in combating antibiotic-resistant bacteria.
Article
Chemistry, Physical
Hiwot Belay, Buzuayehu Abebe, Dereje Tsegaye, C. R. Ravikumar, S. Giridhar Reddy, H. C. Ananda Murthy
Summary: This study synthesized Fe and Cu co-doped ZnO nanocomposites using the AHS approach, resulting in stable metal oxides with enhanced light absorption properties. The inclusion of dopants into the ZnO lattice was confirmed by various analyses, and the doped nanocomposites exhibited higher light absorption and inhibition of electron-hole recombination compared to bare ZnO. The formation of heterojunctions between ZnO and CuO/Fe2O3 also contributed to the improved performance of the doped nanocomposites in pollutant reduction and degradation. Overall, the AHS approach provides a promising outlook for future environmental safety applications.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mekdes Tenkolu Maru, Bedasa Abdisa Gonfa, Osman Ahmed Zelekew, Sanaulla Pathapalya Fakrudeen, H. C. Ananda Murthy, Eneyew Tilahun Bekele, Fedlu Kedir Sabir
Summary: The photocatalytic degradation of organic pollutants using green synthesized catalysts is a safe method for wastewater treatment. In this study, ZnO and CuO nanoparticles and ZnO/CuO nanocomposites were synthesized using extract of Musa acuminata fruit peel. The nanomaterials were characterized using various techniques and their photocatalytic activities were evaluated. The ZnO/CuO nanocomposite exhibited the highest degradation efficiency of 90% for the methylene blue dye under visible light irradiation.
GREEN CHEMISTRY LETTERS AND REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
Adisu Girma Zewudie, Enyew Amare Zereffa, Teshome Abdo Segne, H. C. Ananda Murthy, C. R. Ravikumar, Dhanalakshmi Muniswamy, Bayissa Bekele Binagdie
Summary: In this study, Ag/bentonite, ZnO/bentonite, and Ag/ZnO/bentonite nanocomposites were synthesized using Hagenia abyssinica plant extract and their antibacterial properties were investigated. The synthesized nanocomposites were characterized and confirmed to have different phases. The nanocomposites exhibited smaller average crystallite sizes compared to the pure nanoparticles and activated bentonite. The presence of functional groups on the surface of the nanocomposites was revealed by Fourier transform infrared spectral analysis. The nanocomposites showed promising antibacterial activities against E. coli and S. aureus strains, with Ag/ZnO/bentonite showing the highest inhibition zone and bactericidal concentration values.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
K. Pompapathi, K. S. Anantharaju, B. S. Surendra, S. Meena, B. Uma, Arpita Paul Chowdhury, H. C. Ananda Murthy
Summary: There is a growing global concern about the energy crisis and environmental pollution. The fabrication of efficient catalysts has become a long-term goal. Green synthesis methods have attracted attention in catalyst fabrication. In this study, bismuth zirconate-hydroxyapatite (BZO-HA) nanocomposites were synthesized using mint leaves as a reducing agent via a combustion method. The BZO-HA composite showed superior photocatalytic activity, excellent optical performance, outstanding selectivity and performance towards sensing lead nitrate and dextrose, and enhanced antibacterial activity compared to bare BZO and HA catalysts.