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Venezia V, Pota G, Argenziano R, Alfieri ML, Moccia F, Ferrara F, Pecorelli A, Esposito R, Di Girolamo R, D'Errico G, Valacchi G, Luciani G, Panzella L, Napolitano A. Design of a hybrid nanoscaled skin photoprotector by boosting the antioxidant properties of food waste-derived lignin through molecular combination with TiO 2 nanoparticles. Int J Biol Macromol 2024; 280:135946. [PMID: 39332570 DOI: 10.1016/j.ijbiomac.2024.135946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 08/21/2024] [Accepted: 09/21/2024] [Indexed: 09/29/2024]
Abstract
TiO2 nanoparticles loaded with pistachio shell lignin (8 % and 29 % w/w) were prepared by a hydrothermal wet chemistry approach. The efficient interaction at the molecular level of the biomacromolecule and inorganic component was demonstrated by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-Visible (UV-Vis), Fourier transform infrared (FT-IR), dynamic light scattering (DLS), and electron paramagnetic resonance (EPR) analysis. The synergistic combination of lignin and TiO2 nanoparticles played a key role in the functional properties of the hybrid material, which exhibited boosted features compared to the separate organic and inorganic phase. In particular, the hybrid TiO2-lignin nanoparticles showed a broader UV-Vis protection range and remarkable antioxidant performance in aqueous media. They could also better protect human skin explants from the DNA damaging effect of UV radiations compared to TiO2 as indicated by lower levels of p-H2A.X, a marker of DNA damage, at 6 h from exposure. In addition, the samples could protect the skin against the structural damage occurring 24 h post UV radiations by preventing the loss of keratin 10. These results open new perspectives in the exploitation of food-waste derived phenolic polymers for the design of efficient antioxidant materials for skin photoprotection in a circular economy perspective.
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Affiliation(s)
- Virginia Venezia
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
| | - Giulio Pota
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Rita Argenziano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Maria Laura Alfieri
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Federica Moccia
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Francesca Ferrara
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Borsari 46, I-44121 Ferrara, Italy
| | - Alessandra Pecorelli
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Borsari 46, I-44121 Ferrara, Italy
| | - Rodolfo Esposito
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
| | - Giuseppe Valacchi
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Borsari 46, I-44121 Ferrara, Italy; Plants for Human Health Institute, NC Research Campus, NC State University, 600 Laureate Wy., Kannapolis, NC 28081, USA; Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, South Korea
| | - Giuseppina Luciani
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy.
| | - Lucia Panzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy.
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Naples, Italy
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Shahriari-Khalaji M, Sattar M, Cao R, Zhu M. Angiogenesis, hemocompatibility and bactericidal effect of bioactive natural polymer-based bilayer adhesive skin substitute for infected burned wound healing. Bioact Mater 2023; 29:177-195. [PMID: 37520303 PMCID: PMC10384635 DOI: 10.1016/j.bioactmat.2023.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Thermal wounds are complex and lethal with irregular shapes, risk of infection, slow healing, and large surface area. The mortality rate in patients with infected burns is twice that of non-infected burns. Developing multifunctional skin substitutes to augment the healing rate of infected burns is vital. Herein, we 3D printed a hydrogel scaffold comprising carboxymethyl chitosan (CMCs) and oxidized alginate grafted catechol (O-AlgCat) on a hydrophobic electrospun layer, forming a bilayer skin substitute (BSS). The functional layer (FL) was fabricated by physiochemical crosslinking to ensure favorable biodegradability. The gallium-containing hydrophobic electrospun layer or backing layer (BL) could mimic the epidermis of skin, avoiding fluid penetration and offering antibacterial activity. 3D printed FL contains catechol, gallium, and biologically active platelet rich fibrin (PRF) to adhere to both tissue and BL, show antibacterial activity, encourage angiogenesis, cell growth, and migration. The fabricated bioactive BSS exhibited noticeable adhesive properties (P ≤ 0.05), significant antibacterial activity (P ≤ 0.05), faster clot formation, and the potential to promote proliferation (P ≤ 0.05) and migration (P ≤ 0.05) of L929 cells. Furthermore, the angiogenesis was significantly higher (P ≤ 0.05) when evaluated in vivo and in ovo. The BSS-covered wounds healed faster due to low inflammation and high collagen density. Based on the obtained results, the fabricated bioactive BSS could be an effective treatment for infected burn wounds.
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Affiliation(s)
- Mina Shahriari-Khalaji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Mamoona Sattar
- Research Group of Microbiological Engineering and Medical Materials, College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, China
| | - Ran Cao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai, 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
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Hanna DH, Aziz MM, Shafee EE. Effective-by-method for the preparation of folic acid-coated TiO 2 nanoparticles with high targeting potential for apoptosis induction against bladder cancer cells (T24). Biotechnol Appl Biochem 2023; 70:1597-1615. [PMID: 36905187 DOI: 10.1002/bab.2456] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 02/25/2023] [Indexed: 03/12/2023]
Abstract
The research's goal is to create the surfaces of titanium dioxide nanoparticles (TiO2 NPs) in a layer of folic acid (FA) that can effectively target human bladder cancer cells (T24). An efficient method for creating FA-coated TiO2 NPs was used, and many tools have been used to analyze its physicochemical properties. The cytotoxic effects of FA-coated NPs on T24 cells and the mechanisms of apoptosis generation were examined employing a variety of methodologies. The prepared FA-coated TiO2 NPs suspensions with a hydrodynamic diameter around 37 nm and a negative surface charge of -30 mV reduced T24 cell proliferation with stronger IC50 value (21.8 ± 1.9 μg/ml) than TiO2 NPs (47.8 ± 2.5 μg/ml). This toxicity resulted in apoptosis induction (16.63%) that was caused through enhanced reactive oxygen species formation and stopping the cell cycle over G2/M phase. Moreover, FA-TiO2 NPs raised the expression levels of P53, P21, BCL2L4, and cleaved Caspase-3, while decreasing Bcl-2, Cyclin B, and CDK1 in treated cells. Overall, these findings revealed efficient targeting of the FA-TiO2 NPs resulted in increasing cellular internalization caused increased apoptosis in T24 cells. As a result, FA-TiO2 NPs might be a viable treatment for human bladder cancer.
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Affiliation(s)
- Demiana H Hanna
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Marina M Aziz
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - E El Shafee
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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4
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Sonström A, Boldrini B, Werner D, Maichle-Mössmer C, Rebner K, Casu MB, Anwander R. Titanium(IV) Surface Complexes Bearing Chelating Catecholato Ligands for Enhanced Band-Gap Reduction. Inorg Chem 2023; 62:715-729. [PMID: 36595489 DOI: 10.1021/acs.inorgchem.2c02838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Protonolysis reactions between dimethylamido titanium(IV) catecholate [Ti(CAT)(NMe2)2]2 and neopentanol or tris(tert-butoxy)silanol gave catecholato-bridged dimers [(Ti(CAT)(OCH2tBu)2)(HNMe2)]2 and [Ti(CAT){OSi(OtBu)3}2(HNMe2)2]2, respectively. Analogous reactions using the dimeric dimethylamido titanium(IV) (3,6-di-tert-butyl)catecholate [Ti(CATtBu2-3,6)(NMe2)2]2 yielded the monomeric Ti(CATtBu2-3,6)(OCH2tBu)2(HNMe2)2 and Ti(CATtBu2-3,6)[OSi(OtBu)3]2(HNMe2)2. The neopentoxide complex Ti(CATtBu2-3,6)(OCH2tBu)2(HNMe2)2 engaged in further protonolysis reactions with Si-OH groups and was consequentially used for grafting onto mesoporous silica KIT-6. Upon immobilization, the surface complex [Ti(CATtBu2-3,6)(OCH2tBu)2(HNMe2)2]@[KIT-6] retained the bidentate chelating geometry of the catecholato ligand. This convergent grafting strategy was compared with a sequential and an aqueous approach, which gave either a mixture of bidentate chelating species with a bipodally anchored Ti(IV) center along with other physisorbed surface species or not clearly identifiable surface species. Extension of the convergent and aqueous approaches to anatase mesoporous titania (m-TiO2) enabled optical and electronic investigations of the corresponding surface species, revealing that the band-gap reduction is more pronounced for the bidentate chelating species (convergent approach) than for that obtained via the aqueous approach. The applied methods include X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and solid-state UV/vis spectroscopy. The energy-level alignment for the surface species from the aqueous approach, calculated from experimental data, accounts for the well-known type II excitation mechanism, whereas the findings indicate a distinct excitation mechanism for the bidentate chelating surface species of the material [Ti(CATtBu2-3,6)(OCH2tBu)2(HNMe2)2]@[m-TiO2].
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Affiliation(s)
- Andrea Sonström
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
| | - Barbara Boldrini
- Lehr- und Forschungszentrum "Process Analysis and Technology", Fakultät Angewandte Chemie, Hochschule Reutlingen, Alteburgstraße 150, Reutlingen 72762, Germany
| | - Daniel Werner
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
| | - Cäcilia Maichle-Mössmer
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
| | - Karsten Rebner
- Lehr- und Forschungszentrum "Process Analysis and Technology", Fakultät Angewandte Chemie, Hochschule Reutlingen, Alteburgstraße 150, Reutlingen 72762, Germany
| | - Maria Benedetta Casu
- Institut für Physikalische und Theoretische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
| | - Reiner Anwander
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen 72076, Germany
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Laisney J, Chevallet M, Fauquant C, Sageot C, Moreau Y, Predoi D, Herlin-Boime N, Lebrun C, Michaud-Soret I. Ligand-Promoted Surface Solubilization of TiO 2 Nanoparticles by the Enterobactin Siderophore in Biological Medium. Biomolecules 2022; 12:1516. [PMID: 36291725 PMCID: PMC9599204 DOI: 10.3390/biom12101516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 03/08/2024] Open
Abstract
Titanium dioxide nanoparticles (TiO2-NPs) are increasingly used in consumer products for their particular properties. Even though TiO2 is considered chemically stable and insoluble, studying their behavior in biological environments is of great importance to figure their potential dissolution and transformation. The interaction between TiO2-NPs with different sizes and crystallographic forms (anatase and rutile) and the strong chelating enterobactin (ent) siderophore was investigated to look at a possible dissolution. For the first time, direct evidence of anatase TiO2-NP surface dissolution or solubilization (i.e., the removal of Ti atoms located at the surface) in a biological medium by this siderophore was shown and the progressive formation of a hexacoordinated titanium-enterobactin (Ti-ent) complex observed. This complex was characterized by UV-visible and Fourier transform infrared (FTIR) spectroscopy (both supported by Density Functional Theory calculations) as well as electrospray ionization mass spectrometry (ESI-MS) and X-ray photoelectron spectroscopy (XPS). A maximum of ca. 6.3% of Ti surface atoms were found to be solubilized after 24 h of incubation, releasing Ti-ent complexes in the micromolar range that could then be taken up by bacteria in an iron-depleted medium. From a health and environmental point of view, the effects associated to the solubilization of the E171 TiO2 food additive in the presence of enterobactin and the entrance of the Ti-enterobactin complex in bacteria were questioned.
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Affiliation(s)
- Jérôme Laisney
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | | | - Caroline Fauquant
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Camille Sageot
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Yohann Moreau
- Université Grenoble Alpes, CNRS CEA, IRIG-LCBM, 38000 Grenoble, France
| | - Daniela Predoi
- National Institute of Materials Physics, Atomistilor 105 bis, 077125 Magurele, Romania
| | | | - Colette Lebrun
- Université Grenoble Alpes, IRIG-SyMMES, CEA, CNRS, CEA-Grenoble, 38000 Grenoble, France
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6
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Sredojević D, Lazić V, Pirković A, Periša J, Murafa N, Spremo-Potparević B, Živković L, Topalović D, Zarubica A, Jovanović Krivokuća M, Nedeljković JM. Toxicity of Silver Nanoparticles Supported by Surface-Modified Zirconium Dioxide with Dihydroquercetin. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3195. [PMID: 36144978 PMCID: PMC9502449 DOI: 10.3390/nano12183195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
The antibacterial performance and cytotoxic examination of in situ prepared silver nanoparticles (Ag NPs), on inorganic-organic hybrid nanopowder consisting of zirconium dioxide nanoparticles (ZrO2 NPs) and dihydroquercetin (DHQ), was performed against Gram (-) bacteria Escherichia coli and Gram (+) bacteria Staphylococcus aureus, as well as against human cervical cancer cells HeLa and healthy MRC-5 human cells. The surface modification of ZrO2 NPs, synthesized by the sol-gel method, with DHQ leads to the interfacial charge transfer (ICT) complex formation indicated by the appearance of absorption in the visible spectral range. The prepared samples were thoroughly characterized (TEM, XRD, reflection spectroscopy), and, in addition, the spectroscopic observations are supported by the density functional theory (DFT) calculations using a cluster model. The concentration- and time-dependent antibacterial tests indicated a complete reduction of bacterial species, E. coli and S. aureus, for all investigated concentrations of silver (0.10, 0.25, and 0.50 mg/mL) after 24 h of contact. On the other side, the functionalized ZrO2 NPs with DHQ, before and after deposition of Ag NPs, do not display a significant decrease in the viability of HeLa MRC-5 cells in any of the used concentrations compared to the control.
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Affiliation(s)
- Dušan Sredojević
- Centre of Excellence for Photoconversion, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
- Department of Science, Texas A&M University at Qatar, Doha P.O. Box 23874, Qatar
| | - Vesna Lazić
- Centre of Excellence for Photoconversion, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Andrea Pirković
- Department for Biology of Reproduction, INEP Institute for Application of Nuclear Energy, University of Belgrade, 11000 Belgrade, Serbia
| | - Jovana Periša
- Centre of Excellence for Photoconversion, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Natalija Murafa
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68 Husinec-Řež, Czech Republic
| | | | - Lada Živković
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia
| | - Dijana Topalović
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia
| | - Aleksandra Zarubica
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Milica Jovanović Krivokuća
- Department for Biology of Reproduction, INEP Institute for Application of Nuclear Energy, University of Belgrade, 11000 Belgrade, Serbia
| | - Jovan M. Nedeljković
- Centre of Excellence for Photoconversion, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
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Synthesis, spectroscopic characterizations, conductometric titration and investigation of potent antioxidant activities of gallic acid complexes with Ca (II), Cu (II), Zn(III), Cr(III) and Se (IV) metal ions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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8
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Yu SY, Liu Y, Ren HT, Liu ZY, Han X. Importance of the ligand-to-metal charge transfer (LMCT) pathway in the photocatalytic oxidation of arsenite by TiO 2. Phys Chem Chem Phys 2022; 24:13661-13670. [PMID: 35611917 DOI: 10.1039/d1cp04752c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photooxidation of As(III) by TiO2 is a complicated process in which the oxidation mechanisms are always controversial. In this study, the enhanced photooxidation rates of As(III) with increasing pH values from 8.0 to 11.0 indicate the high photocatalytic reactivity of TiO2 under alkaline conditions. Moreover, As(III) improves the production of H2O2, indicating H-abstraction from As(III) (soluble or adsorbed) for H2O2 production. Although O2˙-, h+, ˙OH and -OOH are always regarded as the reactive oxygen species in the UV-TiO2 system, the superoxo and peroxo species formed on the surface of TiO2 also contribute to As(III) oxidation. The As(III)-O-Ti(IV) surface complexes formed on TiO2, as well as the decreased bandgaps of TiO2 with increasing concentrations of As(III) indicate that the ligand-to-metal charge transfer (LMCT) pathway also contributes to the oxidation of As(III) under alkaline conditions. Electrochemical analyses further reveal that As(III) enhances the electron density on the surface of TiO2, thereby improving the catalytic reactivity of TiO2. We therefore suggest that H-abstraction from As(III) or H2O to the formed superoxo and peroxo species results in the formation of H2O2, accompanied by the oxidation of As(III). This enriches our knowledge on the oxidation of As(III), as well as other contaminants rich in -OH groups during the photocatalytic oxidation processes.
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Affiliation(s)
- Si-Yuan Yu
- School of Environmental Science and Engineering, Tiangong University, Tianjin, P. R. China
| | - Ying Liu
- School of Environmental Science and Engineering, Tiangong University, Tianjin, P. R. China
| | - Hai-Tao Ren
- School of Textile Science and Engineering, Tiangong University, Tianjin, P. R. China.
| | - Zhao-Yu Liu
- School of Environmental Science and Engineering, Tiangong University, Tianjin, P. R. China
| | - Xu Han
- Key Lab of Indoor Air Environment Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, P. R. China.
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Gao CM, Cai JN, Liu SH, Ji SF, Xing YQ, Chen JC, Chen HY, Zou P, Wu JJ, Wu TY. Superhydrophilic polyethersulfone (PES) membranes with high scale inhibition properties obtained through bionic mineralization and RTIPS. ENVIRONMENTAL RESEARCH 2022; 204:112177. [PMID: 34717945 DOI: 10.1016/j.envres.2021.112177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/29/2021] [Accepted: 10/02/2021] [Indexed: 06/13/2023]
Abstract
Reverse thermally induced separation (RTIPS) was used to obtain a separation membrane with a better internal structure for a higher water flux and a surface that could easily form a hydration layer. In comparison to the traditional modification method, this work focused on the aspect that the internal structure obtained by changing the membrane-making method provided easier adhesion conditions for the dopamine/TiO2 hybrid nanoparticles (DA/TiO2 HNPs) obtained by biomimetic mineralization. It provided a basis for exploring the variation in adhesion with the water bath temperature and the amount of titanium added through the study of turbidity point, SEM images, water contact angle, thermogravimetric test, EDX, AFM, XPS, FTIR and other test results. The SEM images proved that the membrane obtained through the RTIPS method had a porous surface and spongy internal structure, furthermore, additional polymers were adsorbed. Use of EDX demonstrated that biomimetic mineralization prevented the production of agglomerated titanium dioxide. XPS and FTIR spectra confirmed the introduction and immobilization of HNP aggregation. Moreover, a decrease in the surface roughness and water contact angle further suggested an improvement in the hydrophilicity of the modified membrane. The introduction of HNP at a higher water bath temperature helped increase the water flux up to ten times, moreover, the oil-water separation efficiency could still reach over 99.50%. Lastly, a cycle test of the modified membrane under the optimal conditions helped confirm that the membrane forming conditions at this time could provide a better environment for the formation of the hydrophilic layer, which was conducive to the recycling of the separation membrane. In summary, more fixed more hydrophilic particles could be obtained through the RTIPS method based on biomimetic mineralization to prevent the accumulation of titanium dioxide, thus helping improve permeability and anti-fouling of the membrane.
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Affiliation(s)
- Chun-Mei Gao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Center for Polar Research, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Jiao-Nan Cai
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Sheng-Hui Liu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China.
| | - Shi-Feng Ji
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Yun-Qing Xing
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Jin-Chao Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Hong-Yu Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Peng Zou
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jin-Jian Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Tian-Yang Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
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10
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Jacob-Dolan J, Capobianco M, Liu HY, Decavoli C, Crabtree RH, Brudvig G. BODIPY and Dipyrrin as Unexpected Robust Anchoring Groups on TiO 2 Nanoparticles. Dalton Trans 2022; 51:14260-14266. [DOI: 10.1039/d2dt02116a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalent attachment of molecules to metal oxide surfaces typically demands the presence of an anchoring group that in turn requires synthetic steps to introduce. BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) chromophores have long been...
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11
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Catalytic Pyrolysis of Lignin Model Compounds (Pyrocatechol, Guaiacol, Vanillic and Ferulic Acids) over Nanoceria Catalyst for Biomass Conversion. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Understanding the mechanisms of thermal transformations of model lignin compounds (MLC) over nanoscale catalysts is important for improving the technologic processes occurring in the pyrolytic conversion of lignocellulose biomass into biofuels and value-added chemicals. Herein, we investigate catalytic pyrolysis of MLC (pyrocatechol (P), guaiacol (G), ferulic (FA), and vanillic acids (VA)) over nanoceria using FT-IR spectroscopy, temperature-programmed desorption mass spectrometry (TPD MS), and thermogravimetric analysis (DTG/DTA/TG). FT-IR spectroscopic studies indicate that the active groups of aromatic rings of P, G, VA, and FA as well as carboxylate groups of VA and FA are involved in the interaction with nanoceria surface. We explore the general transformation mechanisms of different surface complexes and identify their decomposition products. We demonstrate that decomposition of carboxylate acid complexes occurs by decarboxylation. When FA is used as a precursor, this reaction generates 4-vinylguaiacol. Complexes of VA and FA formed through both active groups of the aromatic ring and decompose on the CeO2 surface to generate hydroxybenzene. The formation of alkylated products accompanies catalytic pyrolysis of acids due to processes of transalkylation on the surface.
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12
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S. Alneyadi S. Mini Review: Antioxidant Application of Metal-Organic Frameworks and Their Composites. HETEROCYCLES 2021. [DOI: 10.3987/rev-20-942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Zhou J, Lin Z, Ju Y, Rahim MA, Richardson JJ, Caruso F. Polyphenol-Mediated Assembly for Particle Engineering. Acc Chem Res 2020; 53:1269-1278. [PMID: 32567830 DOI: 10.1021/acs.accounts.0c00150] [Citation(s) in RCA: 178] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Polyphenols are naturally occurring compounds that are ubiquitous in plants and display a spectrum of physical, chemical, and biological properties. For example, they are antioxidants, have therapeutic properties, absorb UV radiation, and complex with metal ions. Additionally, polyphenols display high adherence, which has been exploited for assembling nanostructured materials. We previously reviewed the assembly of different phenolic materials and their applications (Angew. Chem. Int. Ed. 2019, 58, 1904-1927); however, there is a need for a summary of the fundamental interactions that govern the assembly, stability, and function of polyphenol-based materials. A detailed understanding of interactions between polyphenols and various other building blocks will facilitate the rational design and assembly of advanced polyphenol particles for specific applications. This Account discusses how different interactions and bonding (i.e., hydrogen, π, hydrophobic, metal coordination, covalent, and electrostatic) can be leveraged to assemble and stabilize polyphenol-based particles for diverse applications. In polyphenol-mediated assembly strategies, the polyphenols typically exert more than one type of stabilizing attractive force. However, one interaction often dominates the assembly process and dictates the physicochemical behavior of the particles, which in turn influences potential applications. This Account is thus divided into sections that each focus on a key interaction with relevant examples of applications to highlight structure-function relationships. For example, metal coordination generally becomes weaker at lower pH, which makes it possible to engineer metal-phenolic materials with a pH-responsive disassembly profile suitable for drug delivery. Engineered particles, such as hollow capsules, mesoporous and core-shell particles, and self-assembled nanoparticles are some of the systems that are covered to highlight how polyphenols interact with other building blocks and therefore make up the major focus of this Account. Some of the applications of these materials exemplified in this Account include drug delivery, catalysis, environmental remediation, and forensics. Finally, a perspective is provided on the current challenges and trends in polyphenol-mediated particle assembly, and viable near-term strategies for further elucidating the interplay of various competing interactions in particle formation are discussed. This Account is also expected to serve as a reference to guide fundamental research and facilitate the rational design of polyphenol-based materials for diverse emerging applications.
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Affiliation(s)
- Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Zhixing Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yi Ju
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Md. Arifur Rahim
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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14
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Shi H, Wang M, Wang B, Huang Q, Gao S. Insights on photochemical activities of organic components and minerals in dissolved state biochar in the degradation of atorvastatin in aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122277. [PMID: 32086092 DOI: 10.1016/j.jhazmat.2020.122277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
This study systematically investigated the photocatalytic activity of dissolved state biochar (DSB) with different pyrolysis temperature to the degradation of atorvastatin (ATV), a medicine widely used to combat hyperlipidemia. It was found that the photocatalytic efficiency of DSB increased with the decrease of pyrolysis temperature, that is, DSB300 (DSB with 300 °C of pyrolysis temperature) had the greatest photocatalytic activity in same condition, which was attributed to the dual role of DSB300 as heterogeneous photocatalyst and photosensitizer. The mineral components were responsible for the heterogeneous photocatalytic activity of DSB300. Organic carbon components could synergistically enhance the heterogeneous photocatalytic activity by enhancement of electron-hole separation, and contribute to the formation of singlet oxygen (1O2) and triplet-excited state (3DSB*) as well. The identification of intermediate products and X-ray photoelectron spectroscopy (XPS) analysis of irradiated DSB300/ATV revealed that cross-coupling reaction between ATV and DSB existed in the photodegradation process of ATV. The detailed photodegradation pathways of ATV were proposed, which was triggered by oxygen insertion of pyrrole ring and hydroxyl addition. Meanwhile, the modification of DSB300 under irradiation was evidently attenuated with ATV as shown by multiple characterizations, which helped to keep the stability of DSB300 in photochemical reaction process.
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Affiliation(s)
- Huanhuan Shi
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Mengjie Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Beibei Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Qingguo Huang
- College of Agricultural and Environmental Sciences, Department of Crop and Soil Sciences, University of Georgia, Griffin, GA, 30223, United States
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
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15
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Centurion F, Saborío MG, Allioux FM, Cai S, Ghasemian MB, Kalantar-Zadeh K, Rahim MA. Liquid metal dispersion by self-assembly of natural phenolics. Chem Commun (Camb) 2019; 55:11291-11294. [DOI: 10.1039/c9cc06081b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Liquid metal dispersion stabilized by natural phenolics for conductive paper composites has been demonstrated.
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Affiliation(s)
- Franco Centurion
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Maricruz G. Saborío
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Francois-Marie Allioux
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Shengxiang Cai
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Mohammad B. Ghasemian
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Kourosh Kalantar-Zadeh
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
| | - Md. Arifur Rahim
- School of Chemical Engineering
- University of New South Wales (UNSW)
- Sydney Campus
- Australia
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16
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Multifunctional magnetic cargo-complexes with radical scavenging properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:608-618. [PMID: 30423746 DOI: 10.1016/j.msec.2018.10.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/31/2018] [Accepted: 10/02/2018] [Indexed: 11/22/2022]
Abstract
Core-shell magnetic nanoparticle synthesis offers the opportunity to engineering their physical properties for specific applications when the intrinsic magnetic properties can be associated with other interesting ones. The purpose of this study was to design, synthesize, and characterize core-shell magnetic nanoparticles that mimic superoxide dismutase activity offering the possibility of guidance and therapeutic action. We proposed, for the first time, the synthesis and characterization of the nanocarriers comprised of magnetite nanoparticles functionalized with branched polyethyleneimine of low molecular weight (1.8 kDa) permitting the loading of the protocatechuic acid or its inclusion complex with anionic sulfobutylether-β-cyclodextrin for active drug delivery, in order to combine the useful properties of the magnetite and the protocatechuic acid antioxidant effect. NMR and DSC analyses confirmed the formation of the inclusion complex between sulfobutylether-β-cyclodextrin and protocatechuic acid, while structural and compositional analyses (FT-IR, TEM, XRD) revealed the synthesis of the multifunctional magnetic systems. Due to the possibility of being formulated as blood system injectable suspensions, antioxidant activity (using DPPH test) and cytotoxicity (using MTS assay on normal human dermal fibroblasts cells) were also measured, showing adequate properties to be used in biomedical applications. Moreover, we proposed a nanocarrier that would be able to load unstable active principles and with very low solubility in biological fluids to increase their biological ability.
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17
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Dekanski D, Spremo-Potparević B, Bajić V, Živković L, Topalović D, Sredojević DN, Lazić V, Nedeljković JM. Acute toxicity study in mice of orally administrated TiO2 nanoparticles functionalized with caffeic acid. Food Chem Toxicol 2018; 115:42-48. [DOI: 10.1016/j.fct.2018.02.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/26/2018] [Accepted: 02/28/2018] [Indexed: 12/12/2022]
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18
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Zhao B, Yang T, Zhang Z, Hickey ME, He L. A Triple Functional Approach To Simultaneously Determine the Type, Concentration, and Size of Titanium Dioxide Particles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:2863-2869. [PMID: 29384662 DOI: 10.1021/acs.est.7b05403] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The large-scale manufacturing and use of titanium dioxide (TiO2) particles in food and consumer products significantly increase the likelihood of human exposure and release into the environment. We present a simple and innovative approach to rapidly identify the type (anatase or rutile), as well as to estimate, the size and concentration of TiO2 particles using Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS). The identification and discrimination of rutile and anatase were based on their intrinsic Raman signatures. The concentration of the TiO2 particles was determined based on Raman peak intensity. Particle sizes were estimated based on the ratio between the Raman intensity of TiO2 and the SERS intensity of myricetin bound to the nanoparticles (NPs), which was proven to be independent of TiO2 nanoparticle concentrations. The ratio that was calculated from the 100 nm particles was used as a cutoff value when estimating the presence of nanosized particles within a mixture. We also demonstrated the practical use of this approach when determining the type, concentration, and size of E171: a mixture that contains TiO2 particles of various sizes which are commonly used in many food products as food additives. The presence of TiO2 anatase NPs in E171 was confirmed using the developed approach and was validated by transmission electron micrographs. TiO2 presence in pond water was also demonstrated to be an analytical capability of this method. Our approach shows great promise for the rapid screening of nanosized rutile and anatase TiO2 particles in complex matrixes. This approach will strongly improve the measurement of TiO2 quality during production, as well as the survey capacity and risk assessment of TiO2 NPs in food, consumer goods, and environmental samples.
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Affiliation(s)
- Bin Zhao
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Tianxi Yang
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Zhiyun Zhang
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Michael E Hickey
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Lili He
- Department of Food Science , University of Massachusetts , Amherst , Massachusetts 01003 , United States
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19
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Yang J, Shen F, Deng J, Cai J, Zhang Q, Liu W. Laccase-catalyzed polymerization drying of Chinese lacquer sap with TiO 2
nanoparticles. J Appl Polym Sci 2017. [DOI: 10.1002/app.45865] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jianhong Yang
- School of Environmental and Safety Engineering; Changzhou University; Changzhou 213164 China
- Key Laboratory of Fermentation Engineering (Ministry of Education); Hubei University of Technology; Wuhan 430068 China
| | - Fengqin Shen
- Changzhou Liu Guojun Vocational Technology College; Changzhou 213025 China
| | - Jianping Deng
- School of Environmental and Safety Engineering; Changzhou University; Changzhou 213164 China
| | - Jun Cai
- Key Laboratory of Fermentation Engineering (Ministry of Education); Hubei University of Technology; Wuhan 430068 China
| | - Qiuhua Zhang
- College of Resource and Environmental Science; Wuhan University; Wuhan 430079 China
| | - Wanghui Liu
- School of Environmental and Safety Engineering; Changzhou University; Changzhou 213164 China
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20
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Wu W, Shan G, Xiang Q, Zhang Y, Yi S, Zhu L. Effects of humic acids with different polarities on the photocatalytic activity of nano-TiO 2 at environment relevant concentration. WATER RESEARCH 2017; 122:78-85. [PMID: 28595123 DOI: 10.1016/j.watres.2017.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 04/30/2017] [Accepted: 05/06/2017] [Indexed: 06/07/2023]
Abstract
Large volume production and application of nano-TiO2 make it inevitably release to natural waters and its environmental behaviors would be affected by natural organic matters. In this study, the mechanisms of humic acid (HA) affecting the photocatalytic performance of nano-TiO2 were elucidated by using three HA fractions from the same source but with different polarities. Bulk HA was fractionated on a silica gel column to get three fractions with polarity increasing in the order of FA, FB and FC. FA was fulvic acid-like while FB and FC were humic acid-like. All the three fractions (at 0.1 mg/L) promoted the generation of hydroxyl radicals (OHs) by nano-TiO2, and thus in turn facilitated the photocatalytic degradation of bispheol A (BPA). FA and FC displayed a stronger promotion effect than FB and the bulk HA. Online in situ flow cell ATR-FTIR and XPS analyses indicated that HA fractions could form charge-transfer complex with nano-TiO2 surface through the phenolic hydroxyl and carboxylic groups, which favored the separation of photogenerated electron-hole pairs. Through step methylation experiments, it was verified that the phenolic hydroxyl and carboxylic groups of HA fractions played important roles in promoting the photocatalytic performance of nano-TiO2, and the effect of carboxylic group was more significant than the phenolic hydroxyl group.
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Affiliation(s)
- Wei Wu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Guoqiang Shan
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Qian Xiang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Yinqing Zhang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Shujun Yi
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China
| | - Lingyan Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, PR China; College of Natural Resources and Environment, Northwest A&F University, Yangling, Shanxi, 712100, PR China.
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21
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Sredojević DN, Kovač T, Džunuzović E, Ðorđević V, Grgur BN, Nedeljković JM. Surface-modified TiO2 powders with phenol derivatives: A comparative DFT and experimental study. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.08.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Lee SK, Mills A, O’Rourke C. The P25 TiO 2 /4-chlorophenol photocatalytic system: Spectral sensitivity or lamp artefact? J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Shoeb M, Mobin M, Ali A, Zaman S, Naqvi AH. Graphene-mesoporous anatase TiO2
nanocomposite: A highly efficient and recyclable heterogeneous catalyst for one-pot multicomponent synthesis of benzodiazepine derivatives. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3961] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mohd Shoeb
- Interdisciplinary Nanotechnology Centre (INC); Aligarh Muslim University; Aligarh 202002 Uttar Pradesh India
| | - Mohammad Mobin
- Department of Applied Chemistry, Z.H. College of Engg. & Tech.; Aligarh Muslim University; Aligarh Uttar Pradesh India
| | - Abad Ali
- Steroid Research Laboratory, Department of Chemistry; Aligarh Muslim University; Aligarh 202002 India
| | - Shamsuz Zaman
- Steroid Research Laboratory, Department of Chemistry; Aligarh Muslim University; Aligarh 202002 India
| | - Alim H. Naqvi
- Interdisciplinary Nanotechnology Centre (INC); Aligarh Muslim University; Aligarh 202002 Uttar Pradesh India
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24
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Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro. Colloids Surf B Biointerfaces 2017; 155:323-331. [DOI: 10.1016/j.colsurfb.2017.04.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/29/2022]
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25
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Othman A, Andreescu D, Karunaratne DP, Babu SV, Andreescu S. Functional Paper-Based Platform for Rapid Capture and Detection of CeO 2 Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12893-12905. [PMID: 28340293 DOI: 10.1021/acsami.7b02823] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Development of systems for capture, sequestration, and tracking of nanoparticles (NPs) is becoming a significant focus in many aspects of nanotechnology and environmental research. These systems enable a broad range of applications for evaluating concentration, distribution, and effects of NPs for environmental, clinical, epidemiological, and occupational exposure studies. Herein, we describe the first example of a ligand-graft multifunctional platform for capture and detection of cerium oxide (CeO2 or ceria) NPs. The approach involves the use of redox-active ligands containing o-dihydroxy functionality, enabling multivalent binding, surface retention, and formation of charge transfer complexes between the grafted ligand and the NPs. Using this strategy, paper-based and microarray-printed platforms with NP-capture ability involving either catechol or ascorbic acid as ligands were successfully fabricated. Surface modification was determined by infrared spectroscopy, electron microscopy, X-ray spectroscopy, and thermogravimetric analysis. Functionality was demonstrated for the rapid assessment of NPs in chemical mechanical planarization (CMP) slurries and CMP wastewaters. This novel approach can enable further development of devices and separation technologies including platforms for retention and separation of NPs and measurement tools for detection of NPs in various environments.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Dinusha P Karunaratne
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - S V Babu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, ‡Department of Chemical and Biomolecular Engineering, and §Center for Advanced Materials Processing, Clarkson University , Potsdam, New York 13699, United States
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26
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Mills A, Wells N, O’Rourke C. Probing the activities of UV and visible-light absorbing photocatalyst powders using a resazurin-based photocatalyst activity indicator ink (Rz Paii ). J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Hidalgo T, Cooper L, Gorman M, Lozano-Fernández T, Simón-Vázquez R, Mouchaham G, Marrot J, Guillou N, Serre C, Fertey P, González-Fernández Á, Devic T, Horcajada P. Crystal structure dependent in vitro antioxidant activity of biocompatible calcium gallate MOFs. J Mater Chem B 2017; 5:2813-2822. [PMID: 32264168 DOI: 10.1039/c6tb03101c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two novel 3-D coordination polymers, denoted MIL-155 and MIL-156 (MIL stands for Materials Institute Lavoisier), built up from calcium and the naturally occurring gallic acid (H4gal), have been hydrothermally synthesized and their crystal structures were determined by single-crystal X-ray diffraction. These solids are based on different inorganic subunits: infinite chains of edge-sharing dimers of CaO7 polyhedra linked through partially deprotonated gallate ligands (H2gal2-) for MIL-155 or [Ca2(H2O)(H2gal)2]·2H2O, and ribbon-like inorganic subunits containing both eight-fold or six-fold coordinated CaII ions linked through fully deprotonated gallate ligands (gal4-) for MIL-156 or [Ca3K2(H2O)2(gal)2]·nH2O (n∼ 5). Both solids contain small channels filled with water molecules, with, however no accessible porosity towards N2 at 77 K. MIL-155 and MIL-156 were proven to be biocompatible, as evidenced by in vitro assays (viability and cell proliferation/death balance). While the high chemical stability of MIL-156 makes it almost bioinert, the progressive degradation of MIL-155 leads to an important protective antioxidant effect, associated with the release of the bioactive gallate ligand.
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Affiliation(s)
- Tania Hidalgo
- Institut Lavoisier, UMR 8180 CNRS Université de Versailles Saint-Quentin-en-Yvelines, 45 avenue des Etats-Unis, 78035 Versailles cedex, France.
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28
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Zhao B, Cao X, De La Torre-Roche R, Tan C, Yang T, White JC, Xiao H, Xing B, He L. A green, facile, and rapid method for microextraction and Raman detection of titanium dioxide nanoparticles from milk powder. RSC Adv 2017. [DOI: 10.1039/c7ra02520c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green, facile, and rapid method for microextraction and Raman detection of titanium dioxide nanoparticles from milk powder is reported.
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Affiliation(s)
- B. Zhao
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | - X. Cao
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | - R. De La Torre-Roche
- Department of Analytical Chemistry
- The Connecticut Agricultural Experiment Station
- New Haven
- USA
| | - C. Tan
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | - T. Yang
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | - J. C. White
- Department of Analytical Chemistry
- The Connecticut Agricultural Experiment Station
- New Haven
- USA
| | - H. Xiao
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | - B. Xing
- Stockbridge School of Agriculture
- University of Massachusetts
- Amherst
- USA
| | - L. He
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
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29
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Kim C, Ejima H, Yoshie N. Non-swellable self-healing polymer with long-term stability under seawater. RSC Adv 2017. [DOI: 10.1039/c7ra01778b] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A non-swellable and highly self-healable polymer in seawater is obtained. Dynamic crosslinking of catechol-based polymers with p-phenyldiboronic acid through non-ionic boronate ester bonds is the key to realizing these two properties simultaneously.
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Affiliation(s)
- Chaehoon Kim
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
| | - Hirotaka Ejima
- Department of Materials Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Naoko Yoshie
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
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30
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Wang Y, Chai M, Zhao H, Zhao X, Ji P. Improvement of dispersion of carbon nanotubes in epoxy resin through pyrogallol functionalization. POLYM ENG SCI 2016. [DOI: 10.1002/pen.24340] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yanhui Wang
- Department of Chemical Engineering; Beijing University of Chemical Technology; Beijing China
| | - Mengsha Chai
- Department of Chemical Engineering; Beijing University of Chemical Technology; Beijing China
| | - Hongjie Zhao
- Department of Chemical Engineering; Beijing University of Chemical Technology; Beijing China
| | - Xueying Zhao
- Department of Chemical Engineering; Beijing University of Chemical Technology; Beijing China
| | - Peijun Ji
- Department of Chemical Engineering; Beijing University of Chemical Technology; Beijing China
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31
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Medić MM, Vasić M, Zarubica AR, Trandafilović LV, Dražić G, Dramićanin MD, Nedeljković JM. Enhanced photoredox chemistry in surface-modified Mg2TiO4 nano-powders with bidentate benzene derivatives. RSC Adv 2016. [DOI: 10.1039/c6ra16284c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The absorption of Mg2TiO4 nano-powder was extended to visible spectral region upon surface modification with salicylate-and catecholate-type of ligands. Degradation of crystal violet over synthesized powders indicated their photocatalytic ability.
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Affiliation(s)
- Mina M. Medić
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Marija Vasić
- Department of Chemistry
- Faculty of Science and Mathematics
- University of Niš
- 18000 Niš
- Serbia
| | - Aleksandra R. Zarubica
- Department of Chemistry
- Faculty of Science and Mathematics
- University of Niš
- 18000 Niš
- Serbia
| | | | - Goran Dražić
- Laboratory for Materials Chemistry
- National Institute of Chemistry
- 1000 Ljubljana
- Slovenia
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32
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Bülbül G, Hayat A, Liu X, Andreescu S. Reactivity of nanoceria particles exposed to biologically relevant catechol-containing molecules. RSC Adv 2016. [DOI: 10.1039/c6ra07279h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The interaction of nanoceria with catecholic molecules was investigated to obtain mechanistic information of the surface reactivity of these particles, and develop predictive models of their behavior and potential effects in complex environments.
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Affiliation(s)
- Gonca Bülbül
- Department of Chemistry and Biomolecular Science
- Clarkson University
- New York 13699-5810
- USA
| | - Akhtar Hayat
- Department of Chemistry and Biomolecular Science
- Clarkson University
- New York 13699-5810
- USA
- Interdisciplinary Research Centre in Biomedical Materials
| | - Xiaobo Liu
- Department of Chemistry and Biomolecular Science
- Clarkson University
- New York 13699-5810
- USA
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science
- Clarkson University
- New York 13699-5810
- USA
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33
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Enhanced Dispersion of TiO2 Nanoparticles in a TiO2/PEDOT:PSS Hybrid Nanocomposite via Plasma-Liquid Interactions. Sci Rep 2015; 5:15765. [PMID: 26497265 PMCID: PMC4620561 DOI: 10.1038/srep15765] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 09/29/2015] [Indexed: 01/14/2023] Open
Abstract
A facile method to synthesize a TiO2/PEDOT:PSS hybrid nanocomposite material in aqueous solution through direct current (DC) plasma processing at atmospheric pressure and room temperature has been demonstrated. The dispersion of the TiO2 nanoparticles is enhanced and TiO2/polymer hybrid nanoparticles with a distinct core shell structure have been obtained. Increased electrical conductivity was observed for the plasma treated TiO2/PEDOT:PSS nanocomposite. The improvement in nanocomposite properties is due to the enhanced dispersion and stability in liquid polymer of microplasma treated TiO2 nanoparticles. Both plasma induced surface charge and nanoparticle surface termination with specific plasma chemical species are proposed to provide an enhanced barrier to nanoparticle agglomeration and promote nanoparticle-polymer binding.
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34
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Muñoz-García AB, Sannino F, Vitiello G, Pirozzi D, Minieri L, Aronne A, Pernice P, Pavone M, D'Errico G. Origin and Electronic Features of Reactive Oxygen Species at Hybrid Zirconia-Acetylacetonate Interfaces. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21662-7. [PMID: 26394654 DOI: 10.1021/acsami.5b06988] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The hybrid sol-gel zirconia-acetylacetonate amorphous material (HSGZ) shows high catalytic activity in oxidative degradation reactions without light or thermal pretreatment. This peculiar HSGZ ability derives from the generation of highly reactive oxygen radical species (ROS) upon exposure to air at room conditions. We disclose the origin of such unique feature by combining EPR and DRUV measurements with first-principles calculations. The organic ligand acetylacetonate (acac) plays a pivotal role in generating and stabilizing the superoxide radical species at the HSGZ-air interfaces. Our results lead the path toward further development of HSGZ and related hybrid materials for ROS-based energy and environmental applications.
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Affiliation(s)
- Ana B Muñoz-García
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Filomena Sannino
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Giuseppe Vitiello
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Domenico Pirozzi
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Luciana Minieri
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Antonio Aronne
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Pasquale Pernice
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Michele Pavone
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
| | - Gerardino D'Errico
- Dipartimento di Scienze Chimiche, ‡Dipartimento di Agraria and §Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli "Federico II" , Napoli, Italia
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35
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Photocatalysis of titanium dioxide modified by catechol-type interfacial surface complexes (ISC) with different substituted groups. J Catal 2015. [DOI: 10.1016/j.jcat.2015.05.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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Sannino F, Pernice P, Imparato C, Aronne A, D'Errico G, Minieri L, Perfetti M, Pirozzi D. Hybrid TiO2–acetylacetonate amorphous gel-derived material with stably adsorbed superoxide radical active in oxidative degradation of organic pollutants. RSC Adv 2015. [DOI: 10.1039/c5ra21176j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
˙O2−superoxide radicals are firmly adsorbed on the surface of the hybrid material giving oxidative degradation without any light irradiation.
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Affiliation(s)
- Filomena Sannino
- Università di Napoli Federico II
- Dipartimento di Agraria
- I-80055 Portici
- Italy
- Centro Interdipartimentale di Ricerca sulla Risonanza Magnetica Nucleare per l'Ambiente, l'Agro-Alimentare ed I Nuovi Materiali (CERMANU)
| | - Pasquale Pernice
- Università di Napoli Federico II
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
- Italy
- Centro Interdipartimentale di Ricerca sulla Risonanza Magnetica Nucleare per l'Ambiente, l'Agro-Alimentare ed I Nuovi Materiali (CERMANU)
- Università di Napoli Federico II
| | - Claudio Imparato
- Università di Napoli Federico II
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
- Italy
| | - Antonio Aronne
- Università di Napoli Federico II
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
- Italy
- Centro Interdipartimentale di Ricerca sulla Risonanza Magnetica Nucleare per l'Ambiente, l'Agro-Alimentare ed I Nuovi Materiali (CERMANU)
- Università di Napoli Federico II
| | - Gerardino D'Errico
- Università di Napoli Federico II
- Dipartimento di Scienze Chimiche
- Italy
- Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase
- Unità di Napoli
| | - Luciana Minieri
- Università di Napoli Federico II
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
- Italy
| | - Marco Perfetti
- Università di Napoli Federico II
- Dipartimento di Scienze Chimiche
- Italy
| | - Domenico Pirozzi
- Università di Napoli Federico II
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
- Italy
- Centro Interdipartimentale di Ricerca sulla Risonanza Magnetica Nucleare per l'Ambiente, l'Agro-Alimentare ed I Nuovi Materiali (CERMANU)
- Università di Napoli Federico II
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37
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Jaušovec D, Božič M, Kovač J, Štrancar J, Kokol V. Synergies of phenolic-acids’ surface-modified titanate nanotubes (TiNT) for enhanced photo-catalytic activities. J Colloid Interface Sci 2015; 438:277-290. [DOI: 10.1016/j.jcis.2014.09.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 09/28/2014] [Accepted: 09/30/2014] [Indexed: 10/24/2022]
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38
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Aguayo T, Carolina Araya M, Mónica Icaza T, Campos-Vallette M. A vibrational approach for the study of historical weighted and dyed silks. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Radoman TS, Džunuzović JV, Jeremić KB, Grgur BN, Miličević DS, Popović IG, Džunuzović ES. Improvement of epoxy resin properties by incorporation of TiO2 nanoparticles surface modified with gallic acid esters. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.matdes.2014.05.015] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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Savić TD, Čomor MI, Nedeljković JM, Veljković DŽ, Zarić SD, Rakić VM, Janković IA. The effect of substituents on the surface modification of anatase nanoparticles with catecholate-type ligands: a combined DFT and experimental study. Phys Chem Chem Phys 2014; 16:20796-805. [DOI: 10.1039/c4cp02197e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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41
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Hayat A, Gonca Bulbul, Andreescu S. Probing phosphatase activity using redox active nanoparticles: A novel colorimetric approach for the detection of enzyme activity. Biosens Bioelectron 2014; 56:334-9. [DOI: 10.1016/j.bios.2014.01.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/18/2013] [Accepted: 01/01/2014] [Indexed: 10/25/2022]
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42
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Ahmad W, Zhang L, Zhou Y. 2-D lanthanide–organic complexes constructed from 6,7-dihydropyrido(2,3-d)pyridazine-5,8-dione: synthesis, characterization and photoluminescence for sensing small molecules. CrystEngComm 2014. [DOI: 10.1039/c3ce42575d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The 2-D lanthanide–organic complex [(EuHPDH)(ox)(H2O)]n, synthesized under hydrothermal conditions, shows high potential for sensing small molecules by its luminescence properties in different emulsions.
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Affiliation(s)
- Waqar Ahmad
- State Key Laboratory of Chemical Resource Engineering
- Institute of Science
- Beijing University of Chemical Technology
- Beijing 100029, P. R. China
| | - Lijuan Zhang
- State Key Laboratory of Chemical Resource Engineering
- Institute of Science
- Beijing University of Chemical Technology
- Beijing 100029, P. R. China
| | - Yunshan Zhou
- State Key Laboratory of Chemical Resource Engineering
- Institute of Science
- Beijing University of Chemical Technology
- Beijing 100029, P. R. China
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43
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Bolley J, Lalatonne Y, Haddad O, Letourneur D, Soussan M, Pérard-Viret J, Motte L. Optimized multimodal nanoplatforms for targeting α(v)β3 integrins. NANOSCALE 2013; 5:11478-11489. [PMID: 24154564 DOI: 10.1039/c3nr03763k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Magnetic Resonance Imaging (MRI) using contrast agents is a very powerful technique for diagnosis in clinical medicine and biomedical research. The synthesis of ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles targeting αvβ3 integrins and acting as new MRI contrast agents seems to be a promising way for cancer diagnosis. Indeed, it is well established that αvβ3 integrin plays a key role in tumor angiogenesis acting like a receptor for the extracellular matrix proteins like vitronectin, fibronectin through the arginine-glycine-aspartic acid (RGD) sequence. Up-regulation of αvβ3 has been found to be associated with a wide range of cancers, making it a broad-spectrum tumor-marker. In this study, USPIO nanocrystals were synthesized and surface passivated with caffeic acid. The large number of the carboxylic acid functions at the outer surface of the nanoplatforms was used for the covalent coupling of Rhodamine123, polyethylene glycol (PEG) and cyclic RGD. Soluble carbodiimide (EDC) and N-hydroxysuccinimide (NHS) were used to crosslink carboxylic acid with the amino group of the ligands. We examined the design of the nanoplatforms with each individual entity and then the combination of two and three of them. Several methods were used to characterize the nanoparticle surface functionalization and the magnetic properties of these contrast agents were studied using a 1.5 T clinical MRI scanner. The affinity towards integrins was evidenced by surface plasmon resonance and solid-phase receptor-binding assay.
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Affiliation(s)
- Julie Bolley
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 74 avenue M. Cachin, 93017 Bobigny, France.
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44
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Masoud MS, Ali AE, Haggag SS, Nasr NM. Spectroscopic studies on gallic acid and its azo derivatives and their iron(III) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:505-511. [PMID: 24211811 DOI: 10.1016/j.saa.2013.10.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 10/08/2013] [Accepted: 10/10/2013] [Indexed: 06/02/2023]
Abstract
Azo gallic derivatives and their iron(III) complexes were synthesized and characterized. The stereochemistry and the mode of bonding of the complexes were achieved based on elemental analysis, UV-Vis and IR. The thermal behaviors of the complexes were studied. The effect of pH on the electronic absorption spectra of gallic acid and its azo derivatives are discussed. Different spectroscopic methods (molar ratio, straight line method, continuous variation, slope ratio and successive method) are applied for determination of stoichiometry and pK values for the complex formation of gallic acid with iron(III) in aqueous media. Iron(III) complexes of gallic acid is formed with different ratio: 1:1, 1:2, 1:3 and 1:4 (M:L).
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Affiliation(s)
- Mamdouh S Masoud
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Alaa E Ali
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt.
| | - Sawsan S Haggag
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Nessma M Nasr
- Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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45
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Ovissipour M, Sablani SS, Rasco B. Engineered nanoparticle adhesion and removal from tomato surfaces. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10183-10190. [PMID: 24079610 DOI: 10.1021/jf4018228] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Engineered nanoparticles (NPs) are being used in different industries due to their unique physicochemical properties. NPs may be toxic and could pose both public health and environmental contamination risks. In this study, two concentrations (50 and 500 μg mL(-1)) of titania (TiO2), silica (SiO2), and alumina (Al2O3) were applied to contaminate the surface of cherry tomato as a food model, followed by washing with deionized water (DI) to remove the NPs from the tomato surfaces. The NP surface charge and hydrodynamic diameter results showed that the isoelectric point (IEP) for alumina was at pH 9-9.6, for silica at pH <3, and for titania was at pH 6.5-6.8; in addition, the highest hydrodynamic size for all NPs was observed at the IEP. Inductively coupled plasma mass spectrometry (ICP-MS) indicated that the highest NP concentration was observed on tomato surfaces contaminated at the higher concentration (500 μg mL(-1)) (P < 0.05). After the tomatoes had been washed with DI, alumina levels decreased significantly, whereas for titania and silica, no significant difference in NP concentration on tomato surface was observed following the washing treatment. This study shows that removal of NPs may be possible with a simple washing treatment but that removal of NPs is likely to be more effective when the moment ratio is >1, which can occur if the pH of the washing solution is significantly different from the IEP of NPs.
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Affiliation(s)
- Mahmoudreza Ovissipour
- School of Food Science, Washington State University , Pullman, Washington 99164, United States
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46
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Savić TD, Šaponjić ZV, Čomor MI, Nedeljković JM, Dramićanin MD, Nikolić MG, Veljković DŽ, Zarić SD, Janković IA. Surface modification of anatase nanoparticles with fused ring salicylate-type ligands (3-hydroxy-2-naphthoic acids): a combined DFT and experimental study of optical properties. NANOSCALE 2013; 5:7601-7612. [PMID: 23842592 DOI: 10.1039/c3nr01277h] [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
The surface modification of nanocrystalline TiO2 particles (45 Å) with salicylate-type ligands consisting of an extended aromatic ring system, specifically 3-hydroxy-2-naphthoic acid, 3,5-dihydroxy-2-naphthoic acid and 3,7-dihydroxy-2-naphthoic acid, was found to alter the optical properties of nanoparticles in a similar way to salicylic acid. The formation of the inner-sphere charge-transfer (CT) complexes results in a red shift of the semiconductor absorption compared to unmodified nanocrystallites and a reduction in the band gap upon the increase in the electron delocalization when including an additional ring. The investigated ligands have the optimal geometry for binding to surface Ti atoms, resulting in ring coordination complexes of a salicylate-type (binuclear bidentate binding-bridging) thus restoring the six-coordinated octahedral geometry of surface Ti atoms. From both absorption measurements in methanol/water = 90/10 solutions and steady-state quenching measurements of modifier fluorescence upon binding to TiO2 in aqueous solutions, stability constants in the order of 10(3) M(-1) have been determined at pH 2 and pH 3. Fluorescence lifetime measurements, in the presence and absence of colloidal TiO2 nanoparticles, indicated that the fluorescence quenching process is primarily static quenching, thus proving the formation of a nonfluorescent CT complex. The binding structures were investigated by using FTIR spectroscopy. Quantum chemical calculations on model systems using density functional theory (DFT) were performed to obtain the vibrational frequencies of charge transfer complexes, and the calculated values were then compared with the experimental data.
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Affiliation(s)
- Tatjana D Savić
- University of Belgrade, Vinča Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia
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47
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Lee HJ, Koo AN, Lee SW, Lee MH, Lee SC. Catechol-functionalized adhesive polymer nanoparticles for controlled local release of bone morphogenetic protein-2 from titanium surface. J Control Release 2013; 170:198-208. [PMID: 23727196 DOI: 10.1016/j.jconrel.2013.05.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 05/02/2013] [Accepted: 05/22/2013] [Indexed: 01/17/2023]
Abstract
We report on a novel surface functionalization approach to equip the titanium (Ti) surfaces with osteogenic properties. A key feature of the approach is the treatment of the Ti surfaces with Ti-adhesive nanoparticles that can stably load and controllably release bone morphogenetic protein-2 (BMP-2). Ti-adhesive nanoparticles were prepared by self-assembly of a catechol-functionalized poly(amino acid) diblock copolymer, catechol-poly(L-aspartic acid)-b-poly(L-phenylalanine) (Cat-PAsp-PPhe). The nanoparticles consist of Ti-adhesive peripheral catechol groups, anionic PAsp shells, and PPhe inner cores. Field-emission scanning electron microscopy (Fe-SEM) images showed that the Ti-adhesive nanoparticles could be uniformly immobilized on Ti surfaces. X-ray photoelectron spectroscopy (XPS) confirmed the successful anchoring of nanoparticles onto Ti surfaces. After surface immobilization of the nanoparticles, the static water contact angle of the Ti substrate decreased from 75.3° to 50.0° or 36.4°, depending on the surface nanoparticle. Fluorescence microscopic analysis showed that BMP-2 could be effectively incorporated onto the Ti surface with adhesive nanoparticles. BMP-2 was controllably released for up to 40 days. The Ti substrate functionalized with BMP-2-incorporated nanoparticles significantly promoted attachment, proliferation, spreading, and alkaline phosphatase (ALP) activity of human adipose-derived stem cell (hADSC). The catechol-functionalized adhesive nanoparticles may be applied to various medical devices to create surfaces for improved performance.
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Affiliation(s)
- Hong Jae Lee
- Department of Maxillofacial Biomedical Engineering & Institute of Oral Biology, School of Dentistry, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Republic of Korea
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48
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Richter K, Diaconu G, Rischka K, Amkreutz M, Müller FA, Hartwig A. Adsorption studies of mussel-inspired peptides. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2013. [DOI: 10.1680/bbn.12.00022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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49
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Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 824] [Impact Index Per Article: 74.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
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50
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Sharpe E, Frasco T, Andreescu D, Andreescu S. Portable ceria nanoparticle-based assay for rapid detection of food antioxidants (NanoCerac). Analyst 2013; 138:249-62. [PMID: 23139929 PMCID: PMC3518284 DOI: 10.1039/c2an36205h] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With increased awareness of nutrition and the advocacy for healthier food choices, there exists a great demand for a simple, easy-to-use test that can reliably measure the antioxidant capacity of dietary products. We report development and characterization of a portable nanoparticle based-assay, similar to a small sensor patch, for rapid and sensitive detection of food antioxidants. The assay is based on the use of immobilized ceria nanoparticles, which change color after interaction with antioxidants by means of redox and surface chemistry reactions. Monitoring corresponding optical changes enables sensitive detection of antioxidants in which the nanoceria provides an optical 'signature' of antioxidant power, while the antioxidants act as reducing agents. The sensor has been tested for the detection of common antioxidant compounds including ascorbic acid, gallic acid, vanillic acid, quercetin, caffeic acid, and epigallocatechin gallate and its function has been successfully applied for the assessment of antioxidant activity in real samples (teas and medicinal mushrooms). The colorimetric response was concentration dependent, with detection limits ranging from 20 to 400 μM depending on the antioxidant involved. Steady-state color intensity was achieved within seconds upon addition of antioxidants. The results are presented in terms of Gallic Acid Equivalents (GAE). The sensor performed favorably when compared with commonly used antioxidant detection methods. This assay is particularly appealing for remote sensing applications, where specialized equipment is not available, and also for high throughput analysis of a large number of samples. Potential applications for antioxidant detection in remote locations are envisioned.
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Affiliation(s)
- Erica Sharpe
- Department of Chemistry and Biomolecular Science Potsdam, NY 13699-5810
| | - Thalia Frasco
- Department of Chemistry and Biomolecular Science Potsdam, NY 13699-5810
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science Potsdam, NY 13699-5810
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science Potsdam, NY 13699-5810
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