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S Y, N P, M C. Optimization and chemical free fabrication of green synthesized iron nanoparticles as potential MRI contrast agent. Biotechnol Appl Biochem 2024; 71:596-608. [PMID: 38298147 DOI: 10.1002/bab.2561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 01/14/2024] [Indexed: 02/02/2024]
Abstract
The current research article has investigated the synthesis and characterization of novel iron nanoparticles (INPs) from neem and betel leaves extract combination using response surface methodology-central composite design and coated with chitosan-curcumin (CCINPs) as a biocompatible and contrast agent for magnetic resonance imaging (MRI). The coating of INPs with chitosan and curcumin (CCINPs) was carried out using a simple, easy, chemical-free ultrasonication method and characteristics were confirmed by UV-visible (Vis) spectrophotometer (UV-Vis), Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, atomic force microscopy, and vibrating sample magnetometer. The biocompatibility of the particles was ensured by conducting hemolytic and cell viability assays. The nanoparticle was found to be nonhemolytic (<5%) up to 150 μg/mL for both INPs and CCINPs. The cell viability was stable (peripheral blood mononuclear cells-PBMCs) till 48 h at 150 μg/mL of INPs and CCINPs. Both the test results produced were found to be biocompatible and additionally, an in vitro MRI study of INPs and CCINPs demonstrated the efficiency of the nanoparticle as a negative contrast agent with enhanced contrast nature in CCINPs. Thus, overall results indicate that the green synthesized chemical-free novel CCINPs could be a potential candidate for a wide range of applications such as MRI, drug delivery, and in magnetic fluid hyperthermia.
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Affiliation(s)
- Yuwvaranni S
- St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
| | - Punitha N
- Department of Physics, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
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2
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Camparotto NG, de Figueiredo Neves T, de Souza Vendemiatti J, Dos Santos BT, Vieira MGA, Prediger P. Adsorption of contaminants by nanomaterials synthesized by green and conventional routes: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12683-12721. [PMID: 38253828 DOI: 10.1007/s11356-024-31922-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024]
Abstract
Nanomaterials, due to their large surface area and selectivity, have stood out as an alternative for the adsorption of contaminants from water and effluents. Synthesized from green or traditional protocols, the main advantages and disadvantages of green nanomaterials are the elimination of the use of toxic chemicals and difficulty of reproducing the preparation of nanomaterials, respectively, while traditional nanomaterials have the main advantage of being able to prepare nanomaterials with well-defined morphological properties and the disadvantage of using potentially toxic chemicals. Thus, based on the particularities of green and conventional nanomaterials, this review aims to fill a gap in the literature on the comparison of the synthesis, morphology, and application of these nanomaterials in the adsorption of contaminants in water. Focusing on the adsorption of heavy metals, pesticides, pharmaceuticals, dyes, polyaromatic hydrocarbons, and phenol derivatives in water, for the first time, a review article explored and compared how chemical and morphological changes in nanoadsorbents synthesized by green and conventional protocols affect performance in the adsorption of contaminants in water. Despite advances in the area, there is still a lack of review articles on the topic.
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Affiliation(s)
| | | | | | - Bruna Toledo Dos Santos
- School of Technology, University of Campinas - Unicamp, Limeira , São Paulo, CEP: 13484-332, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, Campinas, São Paulo, 13083-852, Brazil
| | - Patrícia Prediger
- School of Technology, University of Campinas - Unicamp, Limeira , São Paulo, CEP: 13484-332, Brazil.
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3
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Green Synthesis of Fe3O4 Nanoparticles and Its Applications in Wastewater Treatment. INORGANICS 2022. [DOI: 10.3390/inorganics10120260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In this paper, the extract of Citrus aurantium (CA) was used as a green approach for the preparation of Fe3O4 nanoparticles. The green Fe3O4 (Fe3O4/CA) was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy analysis (EDX), Fourier-transform infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller (BET) surface area measurement, and vibrating sample magnetometry (VSM). The synthesized Fe3O4/CA was used to remove methylene blue (MB) dye from an aqueous solution. A four-factor central composite design (CCD), combined with response surface modeling (RSM), was used to maximize the MB dye removal. The four independent variables, which were initial dye concentration (10–50 mg/L), solution pH (3–9), adsorbent dose (ranging from 200–1000 mg/L), and contact time (30–90 min), were used as inputs to the model of the perecentage dye removal. The results yielded by an analysis of variance (ANOVA) confirmed the high significance of the regression model. The predicted values of the MB dye removal were in agreement with the corresponding experimental values. Optimized conditions for the maximum MB dye removal (93.14%) by Fe3O4/CA were the initial dye concentration (10.02 mg/L), pH (8.98), adsorbent mass (997.99 mg/L), and contact time (43.71 min). The validity of the quadratic model was examined, and good agreement was found between the experimental and predicted values. Our findings demonstrated that green Fe3O4NPs is a good adsorbent for MB removal.
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Removal of Co(II) from Aqueous Solutions with Amino Acid-Modified Hydrophilic Metal-Organic Frameworks. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Visible-light-driven reduction of chromium (VI) by green synthesised cuprous oxide nanoparticles. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pang Z, Wang B, Yan X, Wang C, Yin S, Li H, Xia J. CdBiO2Br nanosheets in situ strong coupling to carbonized polymer dots and improved photocatalytic activity for organic pollutants degradation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Rahimi F, Anbia M, Farahi M. Aqueous synthesis of L- methionine capped PbS quantum dots for sensitive detection and quantification of arsenic (III). J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Mulu M, RamaDevi D, Belachew N, Basavaiah K. Hydrothermal green synthesis of MoS 2 nanosheets for pollution abatement and antifungal applications. RSC Adv 2021; 11:24536-24542. [PMID: 35481050 PMCID: PMC9036892 DOI: 10.1039/d1ra03815j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/08/2021] [Indexed: 11/21/2022] Open
Abstract
In this study, we report a green synthesis of MoS2 nanosheets (NSs) using a facile hydrothermal technique in the presence of l-cysteine. l-Cysteine can serve as a greener source of sulfur as well as a capping agent to help the growth of MoS2 nanosheets. The prepared materials were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), electron transmission microscopy (TEM), X-ray photoelectron microscopy (XPS), and Brunauer, Emmett, and Teller (BET) analysis. The results showed that MoS2 NSs are of high crystallinity with a lattice spacing of 0.61 nm. The optical bandgap of MoS2 NSs nanosheets prepared using l-cysteine as a source of sulfur was found to be 1.79 eV. The photocatalytic degradation of MoS2 NSs towards methylene orange (MO) and rhodamine blue (RB) dyes under sunlight was found to be promising for practical applications. The fast kinetics of degradation of MO and RhB was observed over a wide range of pH range. Moreover, MoS2 NSs showed excellent antifungal activities against Trichophyton mentagrophytes and Penicillium chrysogenum fungus.
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Affiliation(s)
- Mengistu Mulu
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
| | - Dharmasoth RamaDevi
- A.U. College of Pharmaceutical Sciences, Andhra University Visakhapatnam-530003 India
| | - Neway Belachew
- Department of Chemistry, Debre Birhan University Debre Berhan Ethiopia
| | - K Basavaiah
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
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Calcium Alginate Beads with Entrapped Iron Oxide Magnetic Nanoparticles Functionalized with Methionine-A Versatile Adsorbent for Arsenic Removal. NANOMATERIALS 2021; 11:nano11051345. [PMID: 34065311 PMCID: PMC8161252 DOI: 10.3390/nano11051345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/13/2021] [Accepted: 05/17/2021] [Indexed: 11/20/2022]
Abstract
A novel beads adsorbent, consisting of calcium alginate entrapped on magnetic nanoparticles functionalized with methionine (MFMNABs), was developed for effective elimination of arsenic from water. The material was characterized by FT-IR (Fourier Transform Infrared Spectroscopy), SEM (Scanning Electron Microscopic), XRD (X-ray Diffraction) and TEM (Transmission Electron Microscopy). The arsenic removal capacity of the material was studied by altering variables such as pH of the solution, contact time, adsorbent dose and adsorbate concentration. The maximal removal of As(III) was 99.56% under optimal conditions with an equilibrium time of 110 min and pH 7.0–7.5. The adsorption followed a second order kinetics and data best fitted the Langmuir isotherm with a correlation coefficient of R2 = 0.9890 and adsorption capacity (qm) of 6.6533 mg/g. The thermodynamic study showed entropy change (∆S) and enthalpy change (∆H) to be 34.32 J mol−1 K and 5.25 kJ mol−1, respectively. This study proved that it was feasible to treat an As(III) solution with MFMNABs. The synthesized adsorbent was cost-effective, environmentally friendly and versatile, compared to other adsorbents. The adsorption study was carried by low cost spectrophotometric method using N- bromosuccinimide and rhodamine-B developed in our laboratory.
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Din MI, Zahoor A, Hussain Z, Khalid R. A review on green synthesis of iron (Fe) nanomaterials, its alloys and oxides. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1862229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Ayesha Zahoor
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Zaib Hussain
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Rida Khalid
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
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Lavakusa B, Rama Devi D, Belachew N, Basavaiah K. Selective synthesis of visible light active γ-bismuth molybdate nanoparticles for efficient photocatalytic degradation of methylene blue, reduction of 4-nitrophenol, and antimicrobial activity. RSC Adv 2020; 10:36636-36643. [PMID: 35517965 PMCID: PMC9057020 DOI: 10.1039/d0ra07459d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 09/28/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, we have reported selective synthesis of bismuth molybdate (γ-Bi2M2O6) nanoparticles (NPs) under different pH conditions for photocatalytic degradation of methylene blue (MB), reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) and antimicrobial activities. The synthesis of pure phase γ-Bi2M2O6 at pH = 3 was confirmed by X-ray diffraction (XRD) and Raman analysis. A single hexagonal morphology was obtained at pH = 3 which shows the formation of the pure phase γ-Bi2M2O6 NPs. The mixed morphologies (hexagonal and spherical) were observed at different pH values other than pH = 3. The bandgap energy of all the synthesized Bi2M2O6 NPs is found in the visible region (2.48-2.59 eV). The photocatalytic activity of bismuth molybdate (BM) NPs was examined by the degradation of MB under visible light irradiation. Results show that 95.44% degradation efficiency was achieved by pure γ-Bi2M2O6 NPs compared to mixed phases (γ-Bi2M2O6, α-Bi2M2O6 and β-Bi2M2O6) synthesized at pH = 1.5 and 5. Moreover, the degradation efficiency of γ-Bi2M2O6 was enhanced to 98.89% by the addition of H2O2. The effective catalytic activity of γ-Bi2M2O6 was observed during the reduction of 4-NP to 4-AP by NaBH4. Potential antibacterial and antifungal activity of γ-Bi2M2O6 was observed, which gives a basis for further study in the development of antibiotics.
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Affiliation(s)
- B Lavakusa
- VKR College Buddhavaram Gannavaram-521101 India
| | - Dharmaoth Rama Devi
- A. U. College of Pharmaceutical Sciences, Andhra University Visakhapatnam-530003 India
| | - Neway Belachew
- Department of Chemistry, Debre Berhan University Debre Berhan Ethiopia /
| | - K Basavaiah
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam India-53000
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Kumar B, Smita K, Galeas S, Sharma V, Guerrero VH, Debut A, Cumbal L. Characterization and application of biosynthesized iron oxide nanoparticles using Citrus paradisi peel: A sustainable approach. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108116] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Laban B, Ralević U, Petrović S, Leskovac A, Vasić-Anićijević D, Marković M, Vasić V. Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles. J Inorg Biochem 2020; 204:110958. [DOI: 10.1016/j.jinorgbio.2019.110958] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/03/2019] [Accepted: 12/08/2019] [Indexed: 12/19/2022]
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14
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Kahsay MH, Belachew N, Tadesse A, Basavaiah K. Magnetite nanoparticle decorated reduced graphene oxide for adsorptive removal of crystal violet and antifungal activities. RSC Adv 2020; 10:34916-34927. [PMID: 35514406 PMCID: PMC9056840 DOI: 10.1039/d0ra07061k] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/09/2020] [Indexed: 01/09/2023] Open
Abstract
This work reports the synthesis and application of magnetic rGO/Fe3O4 NCs using a pod extract of Dolichos lablab L. as areducing agent. GO was synthesized by a modified Hummers method, however GO was reduced using the plant extract to produce rGO. The as-synthesized rGO/Fe3O4 NCs were characterized by UV-vis spectrophotometer, Fourier transform infrared (FT-IR) spectroscopy, FT-Raman spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy supported with energy dispersed X-ray spectroscopy (FESEM-EDX), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The synthesis of magnetic rGO/Fe3O4 NCs was confirmed from characterization results of FT-Raman, TEM and VSM. The FT-Raman results showed the D and G bands at 1306.92 cm−1 and 1591 cm−1 due to rGO and a peak at around 589 cm−1 due to Fe3O4 NPs that were anchored on rGO sheets; TEM results showed the synthesis of Fe3O4 with an average particle size of 8.86 nm anchored on the surface of rGO sheets. The VSM result confirmed the superparamagnetic properties of the rGO/Fe3O4 NCs with a saturation magnetization of 42 emu g−1. The adsorption capacity of rGO/Fe3O4 NCs towards crystal violet (CV) dye was calculated to be 62 mg g−1. The dye removal behavior fitted well with the Freundlich isotherm and the pseudo-second-order kinetic model implies possible chemisorption. Besides, rGO/Fe3O4 NCs showed antifungal activities against Trichophyton mentagrophytes and Candida albicans by agar-well diffusion method with a zone inhibition of 24 mm and 21 mm, respectively. Therefore, rGO/Fe3O4 NCs can be used as an excellent adsorbent to remove organic dye pollutants and kill pathogens. This work reports synthesis of magnetic rGO/Fe3O4 NCs using pod extract of Dolichos lablab L. as a reducing agent and its applications.![]()
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Affiliation(s)
| | - Neway Belachew
- Department of Chemistry
- Debre Berhan University
- Debre Berhan
- Ethiopia
| | - Aschalew Tadesse
- Department of Applied Chemistry
- Adama Science and Technology University
- Adama
- Ethiopia
| | - K. Basavaiah
- Department of Inorganic and Analytical Chemistry
- Andhra University
- Visakhapatnam
- India
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Yew YP, Shameli K, Miyake M, Ahmad Khairudin NBB, Mohamad SEB, Naiki T, Lee KX. Green biosynthesis of superparamagnetic magnetite Fe3O4 nanoparticles and biomedical applications in targeted anticancer drug delivery system: A review. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.04.013] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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16
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Vinoth K, Ganesh T, Senthil Kumar P, Maria Sylvester M, Anand Karunakaran D, Ramrao Deshmukh A, Kumbharkhane A. Molecular dynamics and dielectric relaxation by DRS, calorimetric analysis and spectral inferences of amino acid complexes. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Žalnėravičius R, Mikalauskaitė A, Niaura G, Paškevičius A, Jagminas A. Ultra-small methionine-capped Au 0/Au + nanoparticles as efficient drug against the antibiotic-resistant bacteria. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:646-652. [PMID: 31147036 DOI: 10.1016/j.msec.2019.04.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 03/14/2019] [Accepted: 04/20/2019] [Indexed: 12/17/2022]
Abstract
In this study we examined the influence of ultra-small gold and magnetite‑gold nanoparticles (NPs) stabilized with d,l-methionine, Fe3O4@Au@Met, on their antibacterial efficacy against three of twelve the worst bacterial family members included in the World Health Organization (WHO) list. In particular, gram-negative Acinetobacter baumannii, Salmonella enterica and gram-positive methicillin-resistant Staphylococcus aureus and Micrococcus luteus were tested. Apart from the synthesis, gold species reduction and NP stabilization, an excess of methionine has been used herein to detach ultra-small gold NPs from the Fe3O4@Au@Met surface, collect them and investigate. The antimicrobial efficiency of the ultra-small (Ø ~ 1.8 nm) Au@Met NPs and Fe3O4@Au@Met NPs was evaluated through the quantitative analysis by comparing with that of naked magnetite NPs, d,l-Met and BSA. It has been determined that compared with the control sample, 70 mg L-1 probe of Au@Met NPs exhibited the killing efficiency of 84.4-58.5% against gram-negative bacteria and 89.1-75.7% against gram-positive bacteria. The composition, structure, and morphology of the synthesized and tested herein NPs were investigated by inductively coupled plasma optical emission spectrometry, magnetic measurements, FTIR, XRD, XPS, AFM and HRTEM.
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Affiliation(s)
- Rokas Žalnėravičius
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Agnė Mikalauskaitė
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Gediminas Niaura
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos 2, LT-08412 Vilnius, Lithuania
| | - Arūnas Jagminas
- State Research Institute Centre for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania.
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Dash A, Ahmed MT, Selvaraj R. Mesoporous magnetite nanoparticles synthesis using the Peltophorum pterocarpum pod extract, their antibacterial efficacy against pathogens and ability to remove a pollutant dye. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.042] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Yadav P, Manjunath H, Selvaraj R. Antibacterial and dye degradation potential of zero‐valent silver nanoparticles synthesised using the leaf extract of
Spondias dulcis. IET Nanobiotechnol 2018; 13:84-89. [DOI: 10.1049/iet-nbt.2018.5058] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Priyanka Yadav
- Department of BiotechnologyManipal Institute of Technology (MIT), Manipal Academy of Higher EducationManipalKarnataka576104India
| | - Harshita Manjunath
- Department of BiotechnologyManipal Institute of Technology (MIT), Manipal Academy of Higher EducationManipalKarnataka576104India
| | - Raja Selvaraj
- Department of Chemical EngineeringManipal Institute of Technology (MIT), Manipal Academy of Higher EducationManipalKarnataka576104India
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Sirdeshpande KD, Sridhar A, Cholkar KM, Selvaraj R. Structural characterization of mesoporous magnetite nanoparticles synthesized using the leaf extract of Calliandra haematocephala and their photocatalytic degradation of malachite green dye. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0698-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Tadesse A, RamaDevi D, Hagos M, Battu G, Basavaiah K. Synthesis of nitrogen doped carbon quantum dots/magnetite nanocomposites for efficient removal of methyl blue dye pollutant from contaminated water. RSC Adv 2018; 8:8528-8536. [PMID: 35539823 PMCID: PMC9078528 DOI: 10.1039/c8ra00158h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 02/18/2018] [Indexed: 01/09/2023] Open
Abstract
As a remedy for environmental pollution, a simple synthesis approach has been developed to prepare nitrogen doped carbon quantum dot/magnetite nanocomposites (Fe3O4@NCQDs NCs) using non-toxic and cost effective lemon juice as precursor for removal of organic dye pollutant. Fe3O4@NCQDs NCs were characterized by using UV-Vis spectroscopy, FTIR, XRD, FESEM, EDS, TEM, VSM and TGA/DTA. TEM results show spherical shaped Fe3O4@NCQDs NCs with an average particle size of 5 nm. Batch adsorption studies were done to investigate the tendency of the nanocomposites to remove representative methyl blue (MB) dye from aqueous solution. The effects of MB dye concentration, dosage of Fe3O4@NCQDs NC adsorbent, pH, contact time and temperature were optimized by varying one variable while all the other parameters were kept constant. The experiment showed rapid removal of MB dye within 20 minutes with an adsorption efficiency of over 90.84% under optimum conditions. The adsorption process fits the Freundlich isotherm model well with R2 and n values of 0.993 and 1.842, respectively, at 298 K indicating the feasibility of the adsorption process. The adsorption process is spontaneous and involves exothermic behaviour as confirmed by thermodynamic studies. From a kinetic study, it was found that the pseudo-second order model is more suitable to describe the adsorption process than the pseudo-first order model for adsorption of MB dye onto Fe3O4@NCQDs NCs. Herein, we report the green synthesis of magnetic, nitrogen doped carbon quantum dot/Fe3O4 NPs using aqueous lemon extract for the efficient removal of organic dye pollutants from contaminated water.![]()
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Affiliation(s)
- Aschalew Tadesse
- Department of Inorganic and Analytical Chemistry
- Andhra University
- Visakhapatnam-530003
- India
- Department of Applied Chemistry
| | - Dharmasoth RamaDevi
- AU College of Pharmaceutical Sciences
- Andhra University
- Visakhapatnam-530003
- India
| | - Mabrahtu Hagos
- Department of Inorganic and Analytical Chemistry
- Andhra University
- Visakhapatnam-530003
- India
- Faculty of Natural and Computational Sciences
| | - GangaRao Battu
- AU College of Pharmaceutical Sciences
- Andhra University
- Visakhapatnam-530003
- India
| | - K. Basavaiah
- Department of Inorganic and Analytical Chemistry
- Andhra University
- Visakhapatnam-530003
- India
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Jagminas A, Mikalauskaitė A, Karabanovas V, Vaičiūnienė J. Methionine-mediated synthesis of magnetic nanoparticles and functionalization with gold quantum dots for theranostic applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:1734-1741. [PMID: 28904834 PMCID: PMC5588630 DOI: 10.3762/bjnano.8.174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 08/02/2017] [Indexed: 05/06/2023]
Abstract
Biocompatible superparamagnetic iron oxide nanoparticles (NPs) through smart chemical functionalization of their surface with fluorescent species, therapeutic proteins, antibiotics, and aptamers offer remarkable potential for diagnosis and therapy of disease sites at their initial stage of growth. Such NPs can be obtained by the creation of proper linkers between magnetic NP and fluorescent or drug probes. One of these linkers is gold, because it is chemically stable, nontoxic and capable to link various biomolecules. In this study, we present a way for a simple and reliable decoration the surface of magnetic NPs with gold quantum dots (QDs) containing more than 13.5% of Au+. Emphasis is put on the synthesis of magnetic NPs by co-precipitation using the amino acid methionine as NP growth-stabilizing agent capable to later reduce and attach gold species. The surface of these NPs can be further conjugated with targeting and chemotherapy agents, such as cancer stem cell-related antibodies and the anticancer drug doxorubicin, for early detection and improved treatment. In order to verify our findings, high-resolution transmission electron microscopy (HRTEM), atomic force microscopy (AFM), FTIR spectroscopy, inductively coupled plasma mass spectroscopy (ICP-MS), and X-ray photoelectron spectroscopy (XPS) of as-formed CoFe2O4 NPs before and after decoration with gold QDs were applied.
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Affiliation(s)
- Arūnas Jagminas
- State Research Institute Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT- 10222, Vilnius, Lithuania
| | - Agnė Mikalauskaitė
- State Research Institute Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT- 10222, Vilnius, Lithuania
| | | | - Jūrate Vaičiūnienė
- State Research Institute Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT- 10222, Vilnius, Lithuania
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