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Dubey S, Mishra RK, Kaya S, Rene ER, Giri BS, Sharma YC. Microalgae derived honeycomb structured mesoporous diatom biosilica for adsorption of malachite green: Process optimization and modeling. CHEMOSPHERE 2024; 355:141696. [PMID: 38499077 DOI: 10.1016/j.chemosphere.2024.141696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/20/2024]
Abstract
The present study investigated the removal of malachite green dye from aquifers by means of microalgae-derived mesoporous diatom biosilica. The various process variables (dye concentration, pH, and adsorbent dose) influencing the removal of the dye were optimized and their interactive effects on the removal efficiency were explored by response surface methodology. The pH of the solution (pH = 5.26) was found to be the most dominating among other tested variables. The Langmuir isotherm (R2 = 0.995) best fitted the equilibrium adsorption data with an adsorption capacity of 40.7 mg/g at 323 K and pseudo-second-order model (R2 = 0.983) best elucidated the rate of dye removal (10.6 mg/g). The underlying mechanism of adsorption was investigated by Weber-Morris and Boyd models and results revealed that the film diffusion governed the overall adsorption process. The theoretical investigations on the dye structure using DFT-based chemical reactivity descriptors indicated that malachite green cations are electrophilic, reactive and possess the ability to accept electrons, and are strongly adsorbed on the surface of diatom biosilica. Also, the Fukui function analysis proposed the favorable adsorption sites available on the adsorbent surface.
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Affiliation(s)
- Shikha Dubey
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University, Srinagar (Garhwal) 246174, India; Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India.
| | - Rakesh K Mishra
- Department of Chemistry, National Institute of Technology, Uttarakhand (NITUK), Srinagar (Garhwal) 246174, India
| | - Savaş Kaya
- Department of Pharmacy, Health Services Vocational School, Sivas Cumhuriyet University, Sivas 58140, Turkey
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, Delft 2601DA, the Netherlands
| | - Balendu Shekher Giri
- Sustainability Cluster, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand 248007, India
| | - Yogesh C Sharma
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India
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2
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Jahani G, Malmir M, Heravi MM. Catalytic Oxidation of Alcohols over a Nitrogen- and Sulfur-Doped Graphitic Carbon Dot-Modified Magnetic Nanocomposite. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ghazaleh Jahani
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, P.O. Box 1993891176 Vanak, Tehran, Iran
| | - Masoume Malmir
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, P.O. Box 1993891176 Vanak, Tehran, Iran
| | - Majid M. Heravi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, P.O. Box 1993891176 Vanak, Tehran, Iran
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3
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Al-Jameel SS, Almessiere MA, Khan FA, Taskhandi N, Slimani Y, Al-Saleh NS, Manikandan A, Al-Suhaimi EA, Baykal A. Synthesis, Characterization, Anti-Cancer Analysis of Sr 0.5Ba 0.5Dy xSm xFe 8-2xO 19 (0.00 ≤ x ≤ 1.0) Microsphere Nanocomposites. NANOMATERIALS 2021; 11:nano11030700. [PMID: 33799552 PMCID: PMC7998806 DOI: 10.3390/nano11030700] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 02/26/2021] [Accepted: 03/08/2021] [Indexed: 12/11/2022]
Abstract
There is enormous interest in combining two or more nanoparticles for various biomedical applications, especially in anti-cancer agent delivery. In this study, the microsphere nanoparticles were prepared (MSNPs) and their impact on cancer cells was examined. The MSNPs were prepared by using the hydrothermal method where strontium (Sr), barium (Ba), dysprosium (Dy), samarium (Sm), and iron oxide (Fe8−2xO19) were combined, and dysprosium (Dy) and samarium (Sm) was substituted with strontium (Sr) and barium (Ba), preparing Sr0.5Ba0.5DyxSmxFe8−2xO19 (0.00 ≤ x ≤ 1.0) MSNPs. The microspheres were characterized by X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) techniques. The diffraction pattern of nanohexaferrites (NHFs) reflected the signature peaks of the hexagonal structure. The XRD revealed a pure hexagonal structure without any undesired phase, which indicated the homogeneity of the products. The crystal size of the nanoparticles were in the range of 22 to 36 nm by Scherrer’s equation. The SEM of MSNPs showed a semi-spherical shape with a high degree of aggregation. TEM and HR-TEM images of MSNPs verified the spherical shape morphology and structure that approved an M-type hexaferrite formation. The anti-cancer activity was examined on HCT-116 (human colorectal carcinoma) and HeLa (cervical cancer cells) using MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and post-48 h treatment of MSNPs caused a dose-dependent inhibition of HCT-116 and HeLa cell proliferation and growth. Conversely, no significant cytotoxic effect was observed on HEK-293 cells. The treatments of MSNPs also induced cancer cells DNA disintegration, as revealed by 4′,6-diamidino-2-phenylindole (DAPI) staining. Finally, these findings suggest that synthesized MSNPs possess potential inhibitory actions on cancerous cells without harming normal cells.
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Affiliation(s)
- Suhailah S. Al-Jameel
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Munirah A. Almessiere
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (M.A.A.); (Y.S.)
| | - Firdos A. Khan
- Department of Stem Cell Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
- Correspondence:
| | - Nedaa Taskhandi
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (N.T.); (A.B.)
| | - Yassine Slimani
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (M.A.A.); (Y.S.)
| | - Najat S. Al-Saleh
- Consultant Family and Community Medicine, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Ayyar Manikandan
- Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER), Bharath University, Chennai 600 073, Tamil Nadu, India;
| | - Ebtesam A. Al-Suhaimi
- Biology Department, Science College, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Abdulhadi Baykal
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (N.T.); (A.B.)
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4
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Sadjadi S, Koohestani F. Char‐Supported Pd Complex of
N
‐Heterocyclic Carbene: A Novel Recyclable Catalyst for Coupling Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.202001850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department, Faculty of Petrochemic Gas Conversion Department Faculty of Petrochemicals Iran Polymer and Petrochemicals Institute PO Box 14975–112 Tehran Iran
| | - Fatemeh Koohestani
- Gas Conversion Department, Faculty of Petrochemic Gas Conversion Department Faculty of Petrochemicals Iran Polymer and Petrochemicals Institute PO Box 14975–112 Tehran Iran
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Taufiq A, Nikmah A, Hidayat A, Sunaryono S, Mufti N, Hidayat N, Susanto H. Synthesis of magnetite/silica nanocomposites from natural sand to create a drug delivery vehicle. Heliyon 2020; 6:e03784. [PMID: 32322741 PMCID: PMC7163320 DOI: 10.1016/j.heliyon.2020.e03784] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/19/2020] [Accepted: 04/09/2020] [Indexed: 12/18/2022] Open
Abstract
In this study, we report the synthesis of the magnetite/silica nanocomposites and their structural and functional groups, magnetic properties, morphology, antimicrobial activity, and drug delivery performance. The X-ray diffraction characterization showed that magnetite formed a spinel phase and that silica formed an amorphous phase. The particle sizes of magnetite increased from 8.2 to 13.2 nm with increasing silica content, and the particles were observed to be superparamagnetic. The nanocomposites tended to agglomerate based on the scanning electron microscopy images. The antimicrobial activity of the magnetite/silica nanocomposites revealed that the increasing silica content increased the inhibition zones by 74%, 77%, and 143% in case of Gram-positive bacteria (B. subtilis), Gram-negative bacteria (E. coli), and fungus (C. albicans), respectively. Furthermore, doxorubicin was used as the model compound in the drug loading and release study, and drug loading was directly proportional to the silica content. Thus, the increasing silica content increased the drug loading owing to the increasing number of OH- bonds in silica, resulting in strong bonds with doxorubicin. Based on this study, the magnetite/silica nanocomposites could be applied as drug delivery vehicles.
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Affiliation(s)
- Ahmad Taufiq
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Ainun Nikmah
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Arif Hidayat
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Sunaryono Sunaryono
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Nandang Mufti
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Nurul Hidayat
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
| | - Hendra Susanto
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia
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6
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Sadjadi S, Malmir M, Heravi MM, Raja M. Magnetic hybrid of cyclodextrin nanosponge and polyhedral oligomeric silsesquioxane: Efficient catalytic support for immobilization of Pd nanoparticles. Int J Biol Macromol 2019; 128:638-647. [DOI: 10.1016/j.ijbiomac.2019.01.181] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 12/31/2018] [Accepted: 01/28/2019] [Indexed: 01/09/2023]
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7
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Madduluri VR, Katari NK, Peddinti N, Prathap C, Burri DR, Kamaraju SRR, Jonnalagadda SB. Unique Lewis and Bronsted acidic sites texture in the selective production of tetrahydropyran and oxepanefrom1,5-pentanediol and 1,6-hexanediol over sustainable red brick clay catalyst. Heliyon 2019; 5:e01212. [PMID: 30809597 PMCID: PMC6376155 DOI: 10.1016/j.heliyon.2019.e01212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/14/2018] [Accepted: 02/01/2019] [Indexed: 12/03/2022] Open
Abstract
Activated red brick (ARB) clay material proved superb catalyst for selective conversion of 1,5-pentanediol (1,5-PDO) to tetrahydropyran (THP) and 1,6-hexanediol (1,6-HDO) to oxepane (OP) via dehydration under vapor phase conditions in a continuous flow reactor. As per scanning electron microscopy (SEM), SEM-EDX and X-ray fluorescence (XRF) techniques, ARB clay catalyst majorly possessed silica (quartz), and iron oxide (hematite) species, and synergistic texture contributed to the catalytic efficiency for prolonged time-on-stream (TOS). The combination of active Lewis and Bronsted acidic sites with weak to mild acidic nature in the ARB clay obviously facilitates the dehydration reaction with high selectivity, tetrahydropyran (82%) and oxepane (89%). ARB clay displayed superior catalytic properties in the dehydration of alcohols compared with activities of commercial silica and α-Fe2O3 as catalysts. Commercial silica and α-Fe2O3 catalysts possessing the Lewis acidic sites only did not facilitate synchronous dehydration mechanism.
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Affiliation(s)
- Venkata Rao Madduluri
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Naresh Kumar Katari
- Department of Chemistry, GITAM School of Technology, GITAM Deemed to be University, HTP Campus, Rudraram, Medak, Telangana 502 329, India
- School of Chemistry & Physics, University of KwaZulu-Natal, P Bag X 54001, Durban 4000, South Africa
- Corresponding author.
| | - Nagaiah Peddinti
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Challa Prathap
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - David Raju Burri
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Seetha Rama Rao Kamaraju
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, P Bag X 54001, Durban 4000, South Africa
- Corresponding author.
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8
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Madduluri VR, Katari NK, Peddinti N, Velpula VK, Burri DR, Kamaraju SRR, Jonnalagadda SB. Facile redbrick clay as splendid catalyst for selective dehydration of alcohols. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3577-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Sadjadi S, Heravi MM, Malmir M. Pd(0) nanoparticle immobilized on cyclodextrin-nanosponge-decorated Fe 2 O 3 @SiO 2 core-shell hollow sphere: An efficient catalyst for C C coupling reactions. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.02.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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10
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Gessner I, Krakor E, Jurewicz A, Wulff V, Kling L, Christiansen S, Brodusch N, Gauvin R, Wortmann L, Wolke M, Plum G, Schauss A, Krautwurst J, Ruschewitz U, Ilyas S, Mathur S. Hollow silica capsules for amphiphilic transport and sustained delivery of antibiotic and anticancer drugs. RSC Adv 2018; 8:24883-24892. [PMID: 35542120 PMCID: PMC9082457 DOI: 10.1039/c8ra03716g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/21/2018] [Indexed: 11/21/2022] Open
Abstract
Hollow mesoporous silica capsules were used as amphiphilic drug delivery vehicles and sustained release systems for antimicrobial and anticancer drugs.
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11
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Sadjadi S, Heravi MM, Malmir M. Green bio‐based synthesis of Fe
2
O
3
@SiO
2
‐IL/Ag hollow spheres and their catalytic utility for ultrasonic‐assisted synthesis of propargylamines and benzo[
b
]furans. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4029] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Samahe Sadjadi
- Gas Conversion Department, Faculty of PetrochemicalsIran Polymer and Petrochemicals Institute PO Box 14975‐112 Tehran Iran
| | - Majid M. Heravi
- Department of Chemistry, School of ScienceAlzahra University PO Box 1993891176 Vanak Tehran Iran
| | - Masoumeh Malmir
- Department of Chemistry, School of ScienceAlzahra University PO Box 1993891176 Vanak Tehran Iran
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12
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Xu DD, Deng YL, Li CY, Lin Y, Tang HW. Metal-enhanced fluorescent dye-doped silica nanoparticles and magnetic separation: A sensitive platform for one-step fluorescence detection of prostate specific antigen. Biosens Bioelectron 2017; 87:881-887. [DOI: 10.1016/j.bios.2016.09.034] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/06/2016] [Accepted: 09/10/2016] [Indexed: 10/21/2022]
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Sadjadi S, Malmir M, Heravi MM. A green approach to the synthesis of Ag doped nano magnetic γ-Fe2O3@SiO2-CD core–shell hollow spheres as an efficient and heterogeneous catalyst for ultrasonic-assisted A3 and KA2 coupling reactions. RSC Adv 2017. [DOI: 10.1039/c7ra04635a] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using a green approach and ultrasonic-assisted template-free five-step process, a novel heterogeneous catalyst, γ-Fe2O3@SiO2-CD/Ag hollow spheres (h-Fe2O3@SiO2-CD/Ag), was fabricated.
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Affiliation(s)
- S. Sadjadi
- Gas Conversion Department
- Faculty of Petrochemicals
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
| | - M. Malmir
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - M. M. Heravi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
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Saleh TA. Isotherm, kinetic, and thermodynamic studies on Hg(II) adsorption from aqueous solution by silica- multiwall carbon nanotubes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:16721-31. [PMID: 26087931 DOI: 10.1007/s11356-015-4866-z] [Citation(s) in RCA: 244] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/08/2015] [Indexed: 05/20/2023]
Abstract
Silica combined with 2% multiwall carbon nanotubes (SiO2-CNT) was synthesized and characterized. Its sorption efficacy was investigated for the Hg(II) removal from an aqueous solution. The effect of pH on the percentage removal by the prepared material was examined in the range from 3 to 7. The adsorption kinetics were well fitted by using a pseudo-second-order model at various initial Hg(II) concentrations with R (2) of >0.99. The experimental data were plotted using the interparticle diffusion model, which indicated that the interparticle diffusion is not the only rate-limiting step. The data is well described by the Freundlich isotherm equation. The activation energy (Ea) for adsorption was 12.7 kJ mol(-1), indicating the process is to be physisorption. Consistent with an endothermic process, an increase in the temperature resulted in increasing mercury removal with a ∆H(o) of 13.3 kJ/mol and a ∆S(o) 67.5 J/mol K. The experimental results demonstrate that the combining of silica and nanotubes is a promising alternative material, which can be used to remove the mercury from wastewaters.
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Affiliation(s)
- Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
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15
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Targeting of Apoptotic Cells Using Functionalized Fe₂O₃ Nanoparticles. NANOMATERIALS 2015; 5:874-884. [PMID: 28347041 PMCID: PMC5312913 DOI: 10.3390/nano5020874] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 05/20/2015] [Indexed: 11/25/2022]
Abstract
Fe2O3 nanoparticles (NPs) have been synthesized and functionalized with SiO2 and -NH2 group, respectively. Conjugation to fluorescently-labeled poly-caspase inhibitor (SR-FLIVO) has been carried out for better cellular uptake studies of apoptosis arising from brain focal cerebral ischemia. Highest conjugation affinity to SR-FLIVO was found to be ca. 80% for Fe2O3-SiO-NH2 functionalized nanoparticles (FNPs). Tracking of SR-FLIVO conjugated functionalized nanoparticles (SR-FLIVO-FNPs) in vivo and in vitro has been carried out and detected using microscopic techniques after histochemical staining methods. Experimental results revealed that SR-FLIVO-FNPs probe could passively cross the blood brain barrier (BBB) and accumulated within the apoptotic cell. Optimization of SR-FLIVO-FNPs probe can effectively promise to open a new era for intracellular drug delivery and brain diagnosis.
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Xiao L, Mertens M, Wortmann L, Kremer S, Valldor M, Lammers T, Kiessling F, Mathur S. Enhanced in vitro and in vivo cellular imaging with green tea coated water-soluble iron oxide nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2015; 7:6530-6540. [PMID: 25729881 DOI: 10.1021/am508404t] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fully green and facile redox chemistry involving reduction of colloidal iron hydroxide (Fe(OH)3) through green tea (GT) polyphenols produced water-soluble Fe3O4 nanocrystals coated with GT extracts namely epigallocatechin gallate (EGCG) and epicatechin (EC). Electron donating polyphenols stoichiometrically reduced Fe(3+) ions into Fe(2+) ions resulting in the formation of magnetite (Fe3O4) nanoparticles and corresponding oxidized products (semiquinones and quinones) that simultaneously served as efficient surface chelators for the Fe3O4 nanoparticles making them dispersible and stable in water, PBS, and cell culture medium for extended time periods. As-formed iron oxide nanoparticles (2.5-6 nm) displayed high crystallinity and saturation magnetization as well as high relaxivity ratios manifested in strong contrast enhancement observed in T2-weighted images. Potential of green tea-coated superparamagnetic iron oxide nanocrystals (SPIONs) as superior negative contrast agents was confirmed by in vitro and in vivo experiments. Primary human macrophages (J774A.1) and colon cancer cells (CT26) were chosen to assess cytotoxicity and cellular uptake of GT-, EGCGq-, and ECq-coated Fe3O4 nanoparticles, which showed high uptake efficiencies by J774A.1 and CT26 cells without any additional transfection agent. Furthermore, the in vivo accumulation characteristics of GT-coated Fe3O4 nanoparticles were similar to those observed in clinical studies of SPIONs with comparable accumulation in epidermoid cancer-xenograft bearing mice. Given their promising transport and uptake characteristics and new surface chemistry, GT-SPIONs conjugates can be applied for multimodal imaging and therapeutic applications by anchoring further functionalities.
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Affiliation(s)
- Lisong Xiao
- †Institute of Inorganic Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Marianne Mertens
- ‡Department of Experimental Molecular Imaging, RWTH Aachen University Hospital, D-52074 Aachen, Germany
| | - Laura Wortmann
- †Institute of Inorganic Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Silke Kremer
- †Institute of Inorganic Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Martin Valldor
- §Max-Planck-Institute for Chemical Physics and Solids, D-01187 Dresden, Germany
| | - Twan Lammers
- ‡Department of Experimental Molecular Imaging, RWTH Aachen University Hospital, D-52074 Aachen, Germany
| | - Fabian Kiessling
- ‡Department of Experimental Molecular Imaging, RWTH Aachen University Hospital, D-52074 Aachen, Germany
| | - Sanjay Mathur
- †Institute of Inorganic Chemistry, University of Cologne, D-50939 Cologne, Germany
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Wortmann L, Ilyas S, Niznansky D, Valldor M, Arroub K, Berger N, Rahme K, Holmes J, Mathur S. Bioconjugated iron oxide nanocubes: synthesis, functionalization, and vectorization. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16631-16642. [PMID: 25184762 DOI: 10.1021/am503068r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A facile bottom-up approach for the synthesis of inorganic/organic bioconjugated nanoprobes based on iron oxide nanocubes as the core with a nanometric silica shell is demonstrated. Surface coating and functionalization protocols developed in this work offered good control over the shell thickness (8-40 nm) and enabled biovectorization of SiO2@Fe3O4 core-shell structures by covalent attachment of folic acid (FA) as a targeting unit for cellular uptake. The successful immobilization of folic acid was investigated both quantitatively (TGA, EA, XPS) and qualitatively (AT-IR, UV-vis, ζ-potential). Additionally, the magnetic behavior of the nanocomposites was monitored after each functionalization step. Cell viability studies confirmed low cytotoxicity of FA@SiO2@Fe3O4 conjugates, which makes them promising nanoprobes for targeted internalization by cells and their imaging.
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Affiliation(s)
- Laura Wortmann
- Institute of Inorganic Chemistry, University of Cologne , Greinstrasse 6, Cologne 50939, Germany
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18
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Zulhijah R, Dani Nandiyanto AB, Ogi T, Iwaki T, Nakamura K, Okuyama K. Gas phase preparation of spherical core-shell α''-Fe16N2/SiO2 magnetic nanoparticles. NANOSCALE 2014; 6:6487-91. [PMID: 24834445 DOI: 10.1039/c3nr06867f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Well-dispersed spherical core-shell α''-Fe16N2/SiO2 ferro-magnetic nanoparticles were successfully synthesized from core-shell α-Fe/SiO2 nanoparticles. Introduction of oxidation prior to the nitridation process gives 90% of α''-Fe16N2 phase contained in the core while no phase change is observed without oxidation. Saturation magnetization and coercivity are 148 emu g(-1) and 1.82 kOe, respectively.
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Affiliation(s)
- Rizka Zulhijah
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, Japan.
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Guo S, Zhang H, Huang L, Guo Z, Xiong G, Zhao J. Porous material-immobilized iodo-Bodipy as an efficient photocatalyst for photoredox catalytic organic reaction to prepare pyrrolo[2,1-a]isoquinoline. Chem Commun (Camb) 2014; 49:8689-91. [PMID: 23949367 DOI: 10.1039/c3cc44486d] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Iodo-Bodipy immobilized on porous silica was used as an efficient recyclable photocatalyst for photoredox catalytic tandem oxidation-[3+2] cycloaddition reactions of tetrahydroisoquinoline with N-phenylmaleimides to prepare pyrrolo[2,1-a]isoquinoline.
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Affiliation(s)
- Song Guo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, E-208 West Campus, Dalian University of Technology, Dalian 116024, P. R. China.
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Ding W, Guo L. Immobilized transferrin Fe3O4@SiO2 nanoparticle with high doxorubicin loading for dual-targeted tumor drug delivery. Int J Nanomedicine 2013; 8:4631-9. [PMID: 24348038 PMCID: PMC3857267 DOI: 10.2147/ijn.s51745] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Transferrin (Tf) was immobilized onto Fe3O4@SiO2 nanoparticles with high doxorubicin (DOX) loading (TfDMP), for dual targeting of cancer, by chemically coupling both Tf and DOX with dual-function magnetic nanoparticles (DMPs) using a multi-armed crosslinker, poly-L-glutamic acid. With high trapping efficiency for magnetic targeting, TfDMP exhibits a Tf receptor-targeting function. Moreover, the DOX loading percentage of TfDMP is high, and can be controlled by adjusting the reactant ratio. TfDMP presents a narrow size distribution, and is sensitive to pH for drug release. Compared with DOX-coupled DMP without Tf modification (DDMP), TfDMP exhibits enhanced uptake by Tf receptor-expressing tumor cells, and displays stronger cancer cell cytotoxicity. This study provides an efficient method for the dual-targeted delivery of therapeutic agents to tumors, with controlled low carrier toxicity and high efficiency.
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Affiliation(s)
- Wence Ding
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Lin Guo
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
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Griffete N, Ahmad R, Benmehdi H, Lamouri A, Decorse P, Mangeney C. Elaboration of hybrid silica particles using a diazonium salt chemistry approach. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.071] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ilyas S, Ilyas M, van der Hoorn RAL, Mathur S. Selective conjugation of proteins by mining active proteomes through click-functionalized magnetic nanoparticles. ACS NANO 2013; 7:9655-9663. [PMID: 24143894 DOI: 10.1021/nn402382g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) coated with azide groups were functionalized at the surface with biotin (biotin@SPIONs) and cysteine protease inhibitor E-64 (E-64@SPIONs) with the purpose of developing nanoparticle-based assays for identifying cysteine proteases in proteomes. Magnetite particles (ca. 6 nm) were synthesized by microwave-assisted thermal decomposition of iron acetylacetonate and subsequently functionalized following a click chemistry protocol to obtain biotin and E-64 labeled particulate systems. Successful surface modification and covalent attachment of functional groups and molecules were confirmed by FT-IR spectroscopy and thermal gravimetric analysis. The ability of the surface-grafted biotin terminal groups to specifically interact with streptavidin (either horseradish peroxidase [(HRP)-luminol-H2O2] or rhodamine) was confirmed by chemiluminescent assay. A quantitative assessment showed a capture limit of 0.55-1.65 μg protein/100 μg particles. Furthermore, E-64@SPIONs were successfully used to specifically label papain-like cysteine proteases from crude plant extracts. Owing to the simplicity and versatility of the technique, together with the superparamagnetic behavior of FeOx-nanoparticles, the results demonstrate that click chemistry on surface anchored azide group is a viable approach toward bioconjugations that can be extended to other nanoparticles surfaces with different functional groups to target specific therapeutic and diagnostic applications.
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Affiliation(s)
- Shaista Ilyas
- Institute of Inorganic Chemistry, University of Cologne , Greinstraße 6, D-50939 Cologne, Germany
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Zhang L, Dong WF, Sun HB. Multifunctional superparamagnetic iron oxide nanoparticles: design, synthesis and biomedical photonic applications. NANOSCALE 2013; 5:7664-7684. [PMID: 23877222 DOI: 10.1039/c3nr01616a] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have shown great promise in biomedical applications. In this review, we summarize the recent advances in the design and fabrication of core-shell and hetero-structured SPIONs and further outline some exciting developments and progresses of these multifunctional SPIONs for diagnosis, multimodality imaging, therapy, and biophotonics.
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Affiliation(s)
- Lu Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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Grumezescu AM, Ghitulica CD, Voicu G, Huang KS, Yang CH, Ficai A, Vasile BS, Grumezescu V, Bleotu C, Chifiriuc MC. New silica nanostructure for the improved delivery of topical antibiotics used in the treatment of staphylococcal cutaneous infections. Int J Pharm 2013; 463:170-6. [PMID: 23871740 DOI: 10.1016/j.ijpharm.2013.07.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 07/05/2013] [Accepted: 07/08/2013] [Indexed: 11/19/2022]
Abstract
In this paper, we report the synthesis, characterization (FT-IR, XRD, BET, HR-TEM) and bioevaluation of a novel γ-aminobutiric acid/silica (noted GABA-SiO₂ or γ-SiO₂) hybrid nanostructure, for the improved release of topical antibiotics, used in the treatment of Staphylococcus aureus infections. GABA-SiO₂ showed IR bands which were assigned to Si-O-Si (stretch mode). The XRD pattern showed a broad peak in the range of 18-30° (2θ), indicating an amorphous structure. Based on the BET analysis, estimations about surface area (438.14 m²/g) and pore diameters (4.76 nm) were done. TEM observation reveals that the prepared structure presented homogeneity and an average size of particles not exceeding 10nm. The prepared nanostructure has significantly improved the anti-staphylococcal activity of bacitracin and kanamycin sulfate, as demonstrated by the drastic decrease of the minimal inhibitory concentration of the respective antibiotics loaded in the GABA-SiO₂ nanostructure. These results, correlated with the high biocompatibility of this porous structure, are highlighting the possibility of using this carrier for the local delivery of the antimicrobial substances in lower active doses, thus reducing their cytotoxicity and side-effects.
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Affiliation(s)
- Alexandru Mihai Grumezescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania
| | - Cristina Daniela Ghitulica
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania
| | - Georgeta Voicu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania
| | - Keng-Shiang Huang
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 82445, Taiwan
| | - Chih-Hui Yang
- Department of Biological Science and Technology, I-Shou University, Taiwan
| | - Anton Ficai
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania.
| | - Bogdan Stefan Vasile
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania
| | - Valentina Grumezescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Department of Science and Engineering of Oxide Materials and Nanomaterials, Polizu Street no 1-7, 011061 Bucharest, Romania; Laser-Surface-Plasma Interactions Laboratory, Lasers Department National Institute for Lasers, Plasma, and Radiation Physics, 77125 Magurele, Romania
| | - Coralia Bleotu
- Stefan S. Nicolau Institute of Virology, 285 Mihai Bravu, 030304 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- University of Bucharest, Faculty of Biology, Microbiology Immunology Department, Aleea Portocalelor no 1-3, 060101 Bucharest, Romania
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El-Gamel NEA. Silver(i) complexes as precursors to produce silver nanowires: structure characterization, antimicrobial activity and cell viability. Dalton Trans 2013; 42:9884-92. [DOI: 10.1039/c3dt33092c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Qian WY, Sun DM, Zhu RR, Du XL, Liu H, Wang SL. pH-sensitive strontium carbonate nanoparticles as new anticancer vehicles for controlled etoposide release. Int J Nanomedicine 2012. [PMID: 23185118 PMCID: PMC3506155 DOI: 10.2147/ijn.s34773] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Strontium carbonate nanoparticles (SCNs), a novel biodegradable nanosystem for the pH-sensitive release of anticancer drugs, were developed via a facile mixed solvent method aimed at creating smart drug delivery in acidic conditions, particularly in tumor environments. Structural characterization of SCNs revealed that the engineered nanocarriers were uniform in size and presented a dumbbell-shaped morphology with a dense mass of a scale-like spine coating, which could serve as the storage structure for hydrophobic drugs. Chosen as a model anticancer agent, etoposide was effectively loaded into SCNs based on a simultaneous process that allowed for the formation of the nanocarriers and for drug storage to be accomplished in a single step. The etoposide-loaded SCNs (ESCNs) possess both a high loading capacity and efficient encapsulation. It was found that the cumulative release of etoposide from ESCNs is acid-dependent, and that the release rate is slow at a pH of 7.4; this rate increases significantly at low pH levels (5.8, 3.0). Meanwhile, it was also found that the blank SCNs were almost nontoxic to normal cells, and ESCN systems were evidently more potent in antitumor activity compared with free etoposide, as confirmed by a cytotoxicity test using an MTT assay and an apoptosis test with fluorescence-activated cell sorter (FACS) analysis. These findings suggest that SCNs hold tremendous promise in the areas of controlled drug delivery and targeted cancer therapy.
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Affiliation(s)
- Wen-Yu Qian
- Shanghai Tenth People's Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China
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Griffete N, Dechézelles JF, Scheffold F. Dense covalent attachment of magnetic iron oxide nanoparticles onto silica particles using a diazonium salt chemistry approach. Chem Commun (Camb) 2012; 48:11364-6. [DOI: 10.1039/c2cc35462d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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El-Gamel NEA, Mohamed RR, Zayed MA. Synthesis, characterization and application of enrofloxacin complexes as thermal stabilizers for rigid poly(vinyl chloride). Dalton Trans 2012; 41:1824-31. [DOI: 10.1039/c1dt11928a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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