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Alkayal NS, Ibrahim M, Tashkandi N, Alotaibi MM. Efficient Reduction in Methylene Blue Using Palladium Nanoparticles Supported by Melamine-Based Polymer. Materials (Basel) 2023; 16:5887. [PMID: 37687576 PMCID: PMC10488429 DOI: 10.3390/ma16175887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/30/2023] [Accepted: 08/09/2023] [Indexed: 09/10/2023]
Abstract
In this work, palladium nanoparticles, supported by polyaminals (Pd@PAN-NA), were synthesized via a reverse double solvent approach and used as a nano catalyst. The thermogravimetric and the elemental analysis revealed that the catalyst had good dispersity and improved thermal stability. The catalytic activity of the prepared Pd@PAN-NA catalyst was studied for a methylene blue chemical reaction in the presence of NaBH4 as a reducing agent. The effect of the catalyst dose, pH, and dye initial concentration were examined to optimize the chemical reduction conditions. The prepared catalyst Pd@PAN-NA removed 99.8% of methylene blue organic dye, indicating its potential effect for treating waste and contaminated water.
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Affiliation(s)
- Nazeeha S. Alkayal
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.); (M.M.A.)
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Ibrahim M, Tashkandi N, Hadjichristidis N, Alkayal NS. Synthesis of Naphthalene-Based Polyaminal-Linked Porous Polymers for Highly Effective Uptake of CO2 and Heavy Metals. Polymers (Basel) 2022; 14:polym14061136. [PMID: 35335467 PMCID: PMC8952010 DOI: 10.3390/polym14061136] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 11/22/2022] Open
Abstract
Studying the effect of functional groups on the porosity structure and adsorption efficiency of polymer materials is becoming increasingly interesting. In this work, a novel porous polyaminal-linked polymer, based on naphthalene and melamine (PAN-NA) building blocks, was successfully synthesized by a one-pot polycondensation method, and used as an adsorbent for both CO2 and heavy metals. Fourier transform infrared spectroscopy, solid-state 13 C NMR, powder X-ray diffraction, and thermogravimetry were used to characterize the prepared polymer. The porous material structure was established by field-emission scanning electron microscope and N2 adsorption–desorption methods at 77 K. The polymer exhibited excellent uptake of CO2, 133 mg/g at 273 K and 1 bar. In addition, the adsorption behavior of PAN-NA for different metal cations, including Pb(II), Cr(III), Cu(II), Cd(II), Ni(II), and Ba(II), was investigated; a significant adsorption selectivity toward the Pb(II) cation was detected. The influence of pH, adsorbent dose, initial concentrations, and contact time was also assessed. Our results prove that the introduction of naphthalene in the polymer network improves the porosity and, thus, CO2 adsorption, as well as the adsorption of heavy metals.
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Affiliation(s)
- Manal Ibrahim
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
| | - Nada Tashkandi
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, Polymer Synthesis Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia;
| | - Nazeeha S. Alkayal
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
- Correspondence:
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Almessiere M, Khan F, Auwal I, Sertkol M, Tashkandi N, Rehan I, Baykal A. Green synthesis, characterization and anti-cancer capability of Co0.5Ni0.5Nd0.02Fe1.98O4 nanocomposites. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103564] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Akhtar S, Almessiere M, Unal B, Korkmaz AD, Slimani Y, Tashkandi N, Baykal A, UL-Hamid A, Manikandan A. Electrical and dielectric properties of Ni0.5Co0.5Ga Fe1.8–O4 (x ≤ 1.0) spinel ferrite microspheres. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tashkandi N, Zhao Y, Mitchell-Lee G, Stephens D, Patel M, Motro M, Will LA, Kantarci A. Longitudinal assessment of salivary vitamin D binding protein during orthodontic tooth movement. BMC Oral Health 2021; 21:332. [PMID: 34225707 PMCID: PMC8256539 DOI: 10.1186/s12903-021-01689-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/14/2021] [Indexed: 01/25/2023] Open
Abstract
Background Vitamin D is critical for bone physiology. In this study, we quantified Vitamin D Binding Protein (VitDBP) levels in saliva as a measure of Vitamin D during orthodontic tooth movement. Methods In this longitudinal study, saliva samples were collected from 73 orthodontic patients for 4 timepoints for the first six months of orthodontic treatment, along with dental casts at the beginning and the end of the study period. The saliva was measured for VitDBP as a biological marker for bone apposition and clinical tooth movement. We used the absolute change in Little's Irregularity Index as a quantitative measure for alignment. In addition, we measured the levels of alkaline phosphatase (ALP) in saliva as a marker of bone turnover. Results Both low (< 2.75 ng/ml) and high (> 6.48 ng/ml) VitDBP levels were associated with reduced tooth movement. Significant (p < 0.05) seasonal changes in VitDBP using a two-season year model were found with lower levels observed in the summer (Apr–Sept) than in the winter (Oct–Mar). Conclusions Clinically significant orthodontic tooth movement is associated with an optimal range of VitDBP in saliva. Normal levels of VitDBP correlated with more orthodontic tooth movement, suggesting a "normal" range of salivary content of VitDBP. Given the strong trend that is independent of the confounding factors (ex. age, race or gender), the predictive value or salivary VitDBP for tooth movement should be studied in larger cohorts in future studies.
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Affiliation(s)
- Nada Tashkandi
- Department of Applied Oral Sciences, Forsyth Institute, 245 First St, Cambridge, MA, 02142, USA.,Department of Orthodontics and Dentofacial Orthopedics, Boston University Henry M Goldman School of Dental Medicine, Boston, MA, USA
| | - Yihong Zhao
- Department of Applied Psychology, Center of Alcohol and Substance Use Studies, School of Applied and Professional Psychology, Rutgers University, New Brunswick, Piscataway, NJ, USA
| | - Gabrielle Mitchell-Lee
- Department of Orthodontics and Dentofacial Orthopedics, Boston University Henry M Goldman School of Dental Medicine, Boston, MA, USA
| | - Danielle Stephens
- Department of Applied Oral Sciences, Forsyth Institute, 245 First St, Cambridge, MA, 02142, USA
| | - Michele Patel
- Department of Applied Oral Sciences, Forsyth Institute, 245 First St, Cambridge, MA, 02142, USA
| | - Melih Motro
- Department of Orthodontics and Dentofacial Orthopedics, Boston University Henry M Goldman School of Dental Medicine, Boston, MA, USA
| | - Leslie A Will
- Department of Orthodontics and Dentofacial Orthopedics, Boston University Henry M Goldman School of Dental Medicine, Boston, MA, USA
| | - Alpdogan Kantarci
- Department of Applied Oral Sciences, Forsyth Institute, 245 First St, Cambridge, MA, 02142, USA. .,School of Dental Medicine, Harvard University, Boston, MA, USA.
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Rehman S, Almessiere MA, Khan FA, Korkmaz AD, Tashkandi N, Slimani Y, Baykal A. Synthesis and biological characterization of Mn 0.5Zn 0.5Eu xDy xFe 1.8-2xO 4 nanoparticles by sonochemical approach. Mater Sci Eng C Mater Biol Appl 2019; 109:110534. [PMID: 32228890 DOI: 10.1016/j.msec.2019.110534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/03/2019] [Accepted: 12/06/2019] [Indexed: 02/07/2023]
Abstract
Metallic nanoparticles (NPs) possess unique properties which makes them attractive candidates for various applications especially in field of experimental medicine and drug delivery. Many approaches were developed to synthesize divers and customized metallic NPs that can be useful in many areas such as, experimental medicine, drug design, drug delivery, electrical and electronic engineering, electrochemical sensors, and biochemical sensors. Among different metallic nanoparticles, manganese (Mn) NPs are the most prominent materials, in the present study, we have synthetized unique Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs by using ultrasonication method (x ≤ 0.1). The structure, and surface morphology of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs was characterized by XRD, SEM, TEM and EDX methods. We have examined the biological effects of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs on both normal (HEK-293) and cancerous (HCT-116) cells. We have found that the treatment of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs post 48 h, showed significant decline in cancer cells population as revealed by MTT assay. The IC50 value of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs was ranged between (2.35 μg/mL to 2.33 μg/mL). To check the specificity of the actions, we found that the treatment of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs did not produce any effects on the normal cells, which suggest that Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs selectively targeted the cancerous cells. The anti-bacterial properties of Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs were also evaluated by MIC and MBC assays. We suggest that Mn0.5Zn0.5DyxEuxFe1.8-2xO4 NPs produced by sonochemical method possess potential anti-cancer and anti-bacterial capabilities.
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Affiliation(s)
- S Rehman
- Department of Epidemiology, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - M A Almessiere
- Department of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - F A Khan
- Department of Stem Cell Biology, Institute for Research & Medical Consultations (IRMC),Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - A Demir Korkmaz
- Department of Chemistry, Istanbul Medeniyet University, 34700, Istanbul, Uskudar, Turkey.
| | - N Tashkandi
- Department of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - Y Slimani
- Department of Biophysics, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
| | - A Baykal
- Department of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
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Alahmari AA, Sreekumar B, Patel V, Ashat M, Alexandre M, Uduman AK, Akinbiyi EO, Ceplenski A, Shugrue CA, Kolodecik TR, Tashkandi N, Messenger SW, Groblewski GE, Gorelick FS, Thrower EC. Cigarette toxin 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) induces experimental pancreatitis through α7 nicotinic acetylcholine receptors (nAChRs) in mice. PLoS One 2018; 13:e0197362. [PMID: 29870540 PMCID: PMC5988302 DOI: 10.1371/journal.pone.0197362] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/01/2018] [Indexed: 01/29/2023] Open
Abstract
Clinical studies have shown that cigarette smoking is a dose-dependent and independent risk factor for acute pancreatitis. Cigarette smoke contains nicotine which can be converted to the potent receptor ligand and toxin, NNK [4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone]. Previously, we have shown that NNK induces premature activation of pancreatic zymogens in rats, an initiating event in pancreatitis, and this activation is prevented by pharmacologic inhibition of nicotinic acetylcholine receptors (nAChR). In this study, we determined whether NNK mediates pancreatitis through the α7 isoform of nAChR using α7nAChR knockout mice. PCR analysis confirmed expression of non-neuronal α7nAChR in C57BL/6 (WT) mouse and human acinar cells. NNK treatment stimulated trypsinogen activation in acini from WT but not α7nAChR-/- mice. NNK also stimulated trypsinogen activation in human acini. To further confirm these findings, WT and α7nAChR-/- mice were treated with NNK in vivo and markers of pancreatitis were measured. As observed in acini NNK treatment induced trypsinogen activation in WT but not α7nAChR-/- mice. NNK also induced other markers of pancreatitis including pancreatic edema, vacuolization and pyknotic nuclei in WT but not α7nAChR-/- animals. NNK treatment led to increased neutrophil infiltration, a marker of inflammation, in WT mice and to a significantly lesser extent in α7nAChR-/- mice. We also examined downstream targets of α7nAChR activation and found that calcium and PKC activation are involved down stream of NNK stimulation of α7nAChR. In this study we used genetic deletion of the α7nAChR to confirm our previous inhibitor studies that demonstrated NNK stimulates pancreatitis by activating this receptor. Lastly, we demonstrate that NNK can also stimulate zymogen activation in human acinar cells and thus may play a role in human disease.
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Affiliation(s)
- A. A. Alahmari
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - B. Sreekumar
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - V. Patel
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - M. Ashat
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - M. Alexandre
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - A. K. Uduman
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - E. O. Akinbiyi
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - A. Ceplenski
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - C. A. Shugrue
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - T. R. Kolodecik
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - N. Tashkandi
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
| | - S. W. Messenger
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
| | - G. E. Groblewski
- Department of Nutritional Sciences, University of Wisconsin, Madison, Wisconsin, United States of America
| | - F. S. Gorelick
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT, United States of America
| | - E. C. Thrower
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, United States of America
- Veterans Affairs Connecticut Healthcare, West Haven, CT, United States of America
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