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Sakthiraj A. Synthesis of Silver Nanoparticles by Solanum trilobatum L. Aqueous Extract and Their Antibacterial Activity. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2024; 16:S1211-S1216. [PMID: 38882899 PMCID: PMC11174251 DOI: 10.4103/jpbs.jpbs_544_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 06/18/2024] Open
Abstract
Solanum trilobatum L. (Solanaceae), commonly known as nightshade, has been traditionally used by various populations to treat a variety of ailments. Environment-friendly alternatives to chemical and physical procedures for the synthesis of nanomaterials have been proposed. In this research, the hot plate combustion method is used to synthesize nickel oxide nanoparticles (AgNPs) from silver nitrate and S. trilobatum leaf extract. According to X-ray diffraction (XRD) tests, the cubic phase was face-centered, had good crystallinity, and had average crystallite sizes. According to morphological studies, the surface has a cylindrical and rod-like morphology, and average particle size estimates from UV-visible spectroscopy (UV), Fourier transform infrared (FT-IR), concur well with XRD, and the bio-reduced silver nanoparticles were characterized. Staphylococcus aureus, Enterococcus faecalis, Streptococcus mutans, Pseudomonas aeruginosa, and the human pathogenic microorganisms were used to investigate the antibacterial efficacy (12.5, 25, 50 μg/mL) of these biologically created silver nanoparticles.
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Affiliation(s)
- Aksitha Sakthiraj
- Under Graduate, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, India
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Mariappan A, Pandi P, Rajeswarapalanichamy R, Neyvasagam K, Sureshkumar S, Gatasheh MK, Hatamleh AA. Bandgap and visible-light-induced photocatalytic performance and dye degradation of silver doped HAp/TiO 2 nanocomposite by sol-gel method and its antimicrobial activity. ENVIRONMENTAL RESEARCH 2022; 211:113079. [PMID: 35276197 DOI: 10.1016/j.envres.2022.113079] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/14/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Silver doped hydroxyapatite and titanium oxide nanocomposites have been obtained by sol-gel techniques with novel antimicrobial activities for biomedical applications. The synthesis of Ca10-X AgX (PO4)6(OH)2 along with titanium oxide nanoparticles with XAg = 0 (HAp/TiO2), 0.1, 0.25 and 0.5 (Ag:HAp/TiO2-NCS) was performed. The developed crystalline phase was characterized via X-ray diffraction (XRD), and the morphological features were executed via scanning and transmission electron microscopy (SEM/TEM). The HAp/TiO2 and silver doped HAp/TiO2 nanocomposites were spherical grains, with needle and flower-like structures. XRD examination revealed the crystalline phases of HAp/TiO2 and Ag-doped HAp/TiO2 nanocomposites. The crystallite size of HAp/TiO2 and Ag-doped HAp/TiO2 nanocomposites determined from the XRD pattern was ranged between 16 nm and 20 nm. The FTIR analysis confirms the presence of stretching and vibrational peaks for the presence of silver doped HAp/TiO2. The EDAX analysis showed the existence of major elements of HAp/TiO2 and Ag-HAp/TiO2 nanostructured composites. HAp/TiO2 and silver doped HAp/TiO2 were active against both Gram-positive and Gram-negative bacteria such as, E. coli (MTCC 443), S. typhi (MTCC 733), and S. aureus (MTCC 3160). The photocatalytic absorption spectrum implied an increased absorption rate of methylene blue by HAp/TiO2 and silver doped HAp/TiO2 nanocomposites. The photocatalytic activity revealed that 50% Ag doped HAp/TiO2 optimally improved photocatalytic activity.
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Affiliation(s)
- A Mariappan
- Department of Physics and Research Centre, Malankara Catholic College, Mariagiri, Kaliakkavilai, 629 153, Tamil Nadu, India; ManonmaniamSundaranar University, Abishekapatti, 627012, Tirunelveli, Tamilnadu, India.
| | - P Pandi
- P.G and Research Department of Physics, The Madura College, Madurai, Tamil Nadu, India
| | - R Rajeswarapalanichamy
- P.G and Research Department of Physics, N.M.S.S.VellaichamyNadar College, Madurai, Tamil Nadu, India
| | - K Neyvasagam
- Department of Animal Resource & Science, Dankook University, Cheonan-si, Chungnam, South Korea
| | - Shanmugam Sureshkumar
- Department of Animal Resource & Science, Dankook University, Cheonan-si, Chungnam, South Korea
| | - Mansour K Gatasheh
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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Joe Princy SS, Joe Sherin JF, Vijayakumar C, Hentry C, Bindhu MR, Alarjani KM, Alghamidi NS, Hussein DS. Detection of heavy metals, SERS and antibacterial activity of polyvinylpyrolidone modified plasmonic nanoparticles. ENVIRONMENTAL RESEARCH 2022; 210:112883. [PMID: 35123973 DOI: 10.1016/j.envres.2022.112883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/17/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Selective and sensitive optical sensor based on surface plasmon resonance for detection of various heavy metals in water using polyvinylpyrolidone modified silver nanoparticles was explained in this present study. The prepared nanoparticles were characterized by UV-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR) and Transmission electron microscopy (TEM). UV-visible spectra show the surface plasmon resonance (SPR) peak at 409 nm corresponding to silver nanoparticles. Crystalline nature of the nanoparticles was evident from TEM images and XRD analysis. TEM images showed average size of 10 nm for prepared silver nanoparticles. FTIR analysis provides the presence of various functional groups responsible for the reduction and stability of the prepared silver nanoparticles. SERS gives the molecular orientation of the adsorbed pyridine molecules via its nitrogen lone pair of electrons on the surface of silver. Prepared polyvinylpyrolidone modified silver nanoparticles (AgNPs) are demonstrated to detect the concentration of heavy metal contaminant Fe3+ ions in water based on linear change in surface plasmon resonance absorption strength. In addition, AgNPs showed promising activity towards E.coli. These observed optical properties suggest the possible utilization of prepared nanoparticles in the application of water purification.
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Affiliation(s)
- S Smonia Joe Princy
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamilnadu, India
| | - J F Joe Sherin
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamilnadu, India
| | - C Vijayakumar
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamilnadu, India
| | - C Hentry
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamilnadu, India.
| | - M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - Khaloud Mohammed Alarjani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Nadaa Saeid Alghamidi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Dina S Hussein
- Department of Chemistry, College of Sciences and Health, Cleveland State University, Cleveland, 44115, USA
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Joe Sherin JF, Bessy TC, Asha S, Kumar CV, Huessien D, Bindhu MR, Rasheed RA, Alarjani KM. Microwave assisted hydrothermally synthesized cobalt doped zinc ferrites nanoparticles for the degradation of organic dyes and antimicrobial applications. ENVIRONMENTAL RESEARCH 2022; 208:112687. [PMID: 34999033 DOI: 10.1016/j.envres.2022.112687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/06/2021] [Accepted: 12/25/2021] [Indexed: 06/14/2023]
Abstract
A novel photocatalyst based cobalt doped zinc ferrites nanoparticles (Co-ZnFe2O4 NPs) was prepared to actively concentrate degradation of organic dyes in water. The aim this study is to investigate the effect of substitution of Co2+ for Zn2+ in zinc ferrites nanoparticles and is characterized with UV-visible spectroscopy, XRD, TEM, SEM, Photoluminescence and Vibrating sample magnetometer technique. When the calcinations temperature increases from 150 °C to 450 °C the amorphous ferrites begins to vanish and the characteristic reflections of cubic spinal Co-ZnFe2O4 phase are only observed at 450 °C. The band gap energy (Eg) of sample calcined at 250 °C is calculated at 5.2 eV and that of 450 °C is 4.5 eV. The observed value of band gap energy decreased with increasing calcinations temperature in the samples. The increase in PL peak intensity is due to collective emissions and light-scattering. The doping material, cobalt substitution at spinel zinc ferrites surface, and hence gradually decrease the amorphous effect, increase the saturation magnetization and decrease the coercivity while increasing the temperature. The compounds calcined at 250 °C and 450 °C were investigated for their in vitro antimicrobial activity against Staphylococcus aureus. A sample with 450 °C calcination temperature leads to higher efficiencies in the inhibition of growth of bacteria and degradation of organic dyes. Hence, this study provides a novel photocatalyst of Co-ZnFe2O4 NPs in the tile to degrade and analyze the environmentally ignored organic compounds.
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Affiliation(s)
- J F Joe Sherin
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti Tirunelveli, Tamilnadu, India
| | - T C Bessy
- Department of Physics, Annai Velankanni College, Tholayavattam, 629167, Tamilnadu, India
| | - S Asha
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti Tirunelveli, Tamilnadu, India
| | - C Vijaya Kumar
- Department of Physics, St. Jude's College, Thoothoor, Affiliated to Manonmaniam Sundaranar University, Abishekapatti Tirunelveli, Tamilnadu, India.
| | - Dina Huessien
- Department of Chemistry, College of Sciences and Health, Cleveland State University, 2501 Euclid Ave, Cleveland, OH, 44115, United States
| | - M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - Rabab Ahmed Rasheed
- Histology & Cell Biology Department, Faculty of Medicine, King Salman International University, South Sinai, Egypt
| | - Khaloud Mohammed Alarjani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Luo S, Kan X. A nanozyme-catalysis-based ratiometric electrochemical sensor for general detection of Cd 2+. Analyst 2022; 147:5437-5444. [DOI: 10.1039/d2an01480g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AuPt–rGO showed good peroxidase-like activity for the oxidation of OPD to DAP (a novel internal reference) and achieved sensitive and reliable detection of Cd2+ based on a ratiometric strategy.
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Affiliation(s)
- Shan Luo
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, China
| | - Xianwen Kan
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, China
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