1
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Falanga AP, Massaro M, Borbone N, Notarbartolo M, Piccialli G, Liotta LF, Sanchez-Espejo R, Viseras Iborra C, Raymo FM, Oliviero G, Riela S. Carrier capability of halloysite nanotubes for the intracellular delivery of antisense PNA targeting mRNA of neuroglobin gene. J Colloid Interface Sci 2024; 663:9-20. [PMID: 38387188 DOI: 10.1016/j.jcis.2024.02.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Peptide nucleic acid (PNA) is a DNA mimic that shows good stability against nucleases and proteases, forming strongly recognized complementary strands of DNA and RNA. However, due to its feeble ability to cross the cellular membrane, PNA activity and its targeting gene action is limited. Halloysite nanotubes (HNTs) are a natural and low-cost aluminosilicate clay. Because of their peculiar ability to cross cellular membrane, HNTs represent a valuable candidate for delivering genetic materials into cells. Herein, two differently charged 12-mer PNAs capable of recognizing as molecular target a 12-mer DNA molecule mimicking a purine-rich tract of neuroglobin were synthetized and loaded onto HNTs by electrostatic attraction interactions. After characterization, the kinetic release was also assessed in media mimicking physiological conditions. Resonance light scattering measurements assessed their ability to bind complementary single-stranded DNA. Furthermore, their intracellular delivery was assessed by confocal laser scanning microscopy on living MCF-7 cells incubated with fluorescence isothiocyanate (FITC)-PNA and HNTs labeled with a probe. The nanomaterials were found to cross cellular membrane and cell nuclei efficiently. Finally, it is worth mentioning that the HNTs/PNA can reduce the level of neuroglobin gene expression, as shown by reverse transcription-quantitative polymerase chain reaction and western blotting analysis.
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Affiliation(s)
- Andrea P Falanga
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Nicola Borbone
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.
| | - Monica Notarbartolo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Gennaro Piccialli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Leonarda F Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, Via Ugo La Malfa 153, Palermo 90146, Italy
| | - Rita Sanchez-Espejo
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain
| | - Cesar Viseras Iborra
- University of Granada, Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, 18071 Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-UGR, 18100 Armilla, Granada, Spain
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables 33146-0431, FL, United States
| | - Giorgia Oliviero
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Serena Riela
- Dipartimento di Scienze Chimiche, Viale Andrea Doria 6, 95125 Catania, Italy.
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2
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Serien D, Narazaki A, Sugioka K. Towards understanding the mechanism of 3D printing using protein: femtosecond laser direct writing of microstructures made from homopeptides. Acta Biomater 2023; 164:139-150. [PMID: 37062438 DOI: 10.1016/j.actbio.2023.04.007] [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: 06/16/2022] [Revised: 03/17/2023] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
Femtosecond laser direct write (fs-LDW) is a promising technology for three-dimensional (3D) printing due to its high resolution, flexibility, and versatility. A protein solution can be used as a precursor to fabricate 3D proteinaceous microstructures that retain the protein's native function. The large diversity of protein molecules with different native functions allows diverse applications of this technology. However, our limited understanding of the mechanism of the printing process restricts the design and generation of 3D microstructures for biomedical applications. Therefore, we used eight commercially available homopeptides as precursors for fs-LDW of 3D structures. Our experimental results show that tyrosine, histidine, glutamic acid, and lysine contribute more to the fabrication process than do proline, threonine, phenylalanine, and alanine. In particular, we show that tyrosine is highly beneficial in the fabrication process. The beneficial effect of the charged amino acids glutamic acid and lysine suggests that the printing mechanism involves ions in addition to the previously proposed radical mechanism. Our results further suggest that the uneven electron density over larger amino acid molecules is key in aiding fs-LDW. The findings presented here will help generate more desired 3D proteinaceous microstructures by modifying protein precursors with beneficial amino acids. STATEMENT OF SIGNIFICANCE: Femtosecond laser direct write (fs-LDW) offers a three-dimensional (3D) printing capability for creating well-defined micro-and nanostructures. Applying this technology to proteins enables the manufacture of complex biomimetic 3D micro-and nanoarchitectures with retention of their original protein functions. To our knowledge, amino acid homo-polymers themselves have never been used as precursor for fs-LDW so far. Our studygainsseveral new insights into the 3D printing mechanism of pure protein for the first time. We believe that the experimental evidence presented greatly benefits the community of 3D printing of proteinin particular and the biomaterial science community in general. With the gained insight, we aspire toexpand the possibilitiesof biomaterial and biomedical applications of this technique.
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Affiliation(s)
- Daniela Serien
- National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 305-8568, Japan
| | - Aiko Narazaki
- National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 305-8568, Japan
| | - Koji Sugioka
- The Institute of Physical and Chemical Research (RIKEN), Saitama 351-01, Japan
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3
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Fragou F, Theofanous A, Deligiannakis Y, Louloudi M. Nanoantioxidant Materials: Nanoengineering Inspired by Nature. MICROMACHINES 2023; 14:383. [PMID: 36838085 PMCID: PMC9963756 DOI: 10.3390/mi14020383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Oxidants are very active compounds that can cause damage to biological systems under specific environmental conditions. One effective way to counterbalance these adverse effects is the use of anti-oxidants. At low concentrations, an antioxidant is defined as a compound that can delay, control, or prevent an oxidative process. Antioxidants exist in plants, soil, and minerals; therefore, nature is a rich source of natural antioxidants, such as tocopherols and polyphenols. In nature, antioxidants perform in tandem with their bio-environment, which may tune their activity and protect them from degradation. In vitro use of antioxidants, i.e., out of their biomatrix, may encounter several drawbacks, such as auto-oxidation and polymerization. Artificial nanoantioxidants can be developed via surface modification of a nanoparticle with an antioxidant that can be either natural or synthetic, directly mimicking a natural antioxidant system. In this direction, state-of-the-art nanotechnology has been extensively incorporated to overcome inherent drawbacks encountered in vitro use of antioxidants, i.e., out of their biomatrix, and facilitate the production and use of antioxidants on a larger scale. Biomimetic nanoengineering has been adopted to optimize bio-medical antioxidant systems to improve stability, control release, enhance targeted administration, and overcome toxicity and biocompatibility issues. Focusing on biotechnological sciences, this review highlights the importance of nanoengineering in developing effective antioxidant structures and comparing the effectiveness of different nanoengineering methods. Additionally, this study gathers and clarifies the different antioxidant mechanisms reported in the literature and provides a clear picture of the existing evaluation methods, which can provide vital insights into bio-medical applications.
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Affiliation(s)
- Fotini Fragou
- Laboratory of Biomimetic Catalysis & Hybrid Materials, Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
| | - Annita Theofanous
- Laboratory of Biomimetic Catalysis & Hybrid Materials, Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
| | - Yiannis Deligiannakis
- Laboratory of Physical Chemistry of Materials & Environment, Department of Physics, University of Ioannina, GR-45110 Ioannina, Greece
| | - Maria Louloudi
- Laboratory of Biomimetic Catalysis & Hybrid Materials, Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
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4
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Alizadeh SR, Ebrahimzadeh MA. O-substituted quercetin derivatives: Structural classification, drug design, development, and biological activities, a review. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Shah ST, Chowdhury ZZ, Johan MRB, Badruddin IA, Khaleed HMT, Kamangar S, Alrobei H. Surface Functionalization of Magnetite Nanoparticles with Multipotent Antioxidant as Potential Magnetic Nanoantioxidants and Antimicrobial Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030789. [PMID: 35164054 PMCID: PMC8840749 DOI: 10.3390/molecules27030789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 11/29/2022]
Abstract
Functionalized magnetite nanoparticles (Fe3O4) were prepared using the coprecipitation method followed by functionalization with a multipotent antioxidant (MPAO). The MPAO was synthesized and analyzed using FTIR and NMR techniques. In this study, the functionalized nanoparticles (IONP@AO) were produced and evaluated using the FTIR, XRD, Raman, HRTEM, FESEM, VSM, and EDX techniques. The average determined particle size of IONP@AO was 10 nanometers. In addition, it demonstrated superparamagnetic properties. The magnitude of saturation magnetization value attained was 45 emu g−1. Virtual screenings of the MPAO’s potential bioactivities and safety profile were performed using PASS analysis and ADMET studies before the synthesis step. For the DPPH test, IONP@AO was found to have a four-fold greater ability to scavenge free radicals than unfunctional IONP. The antimicrobial properties of IONP@AO were also demonstrated against a variety of bacteria and fungi. The interaction of developed nanoantioxiants with biomolecules makes it a broad-spectrum candidate in biomedicine and nanomedicine.
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Affiliation(s)
- Syed Tawab Shah
- Nanotechnology and Catalysis Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.S.); (M.R.B.J.)
| | - Zaira Zaman Chowdhury
- Nanotechnology and Catalysis Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.S.); (M.R.B.J.)
- Correspondence: or ; Tel.: +60-37-967-2929 or +60-10-267-5621
| | - Mohd. Rafie Bin Johan
- Nanotechnology and Catalysis Research Center, University of Malaya, Kuala Lumpur 50603, Malaysia; (S.T.S.); (M.R.B.J.)
| | - Irfan Anjum Badruddin
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia; (I.A.B.); (S.K.)
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - H. M. T. Khaleed
- Department of Mechanical Engineering, Faculty of Engineering, Islamic University of Madinah, Medina 42351, Saudi Arabia;
| | - Sarfaraz Kamangar
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia; (I.A.B.); (S.K.)
| | - Hussein Alrobei
- Department of Mechanical Engineering, Faculty of Engineering, Prince Sattam Bin Abdulaziz University, Al-Kharj 16278, Saudi Arabia;
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Alizadeh SR, Ebrahimzadeh MA. O-Glycoside quercetin derivatives: Biological activities, mechanisms of action, and structure-activity relationship for drug design, a review. Phytother Res 2021; 36:778-807. [PMID: 34964515 DOI: 10.1002/ptr.7352] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/27/2021] [Accepted: 11/10/2021] [Indexed: 02/06/2023]
Abstract
Quercetin as a valuable natural flavonoid has shown extensive biological activities, including anticancer, antioxidant, antibacterial, antiinflammatory, anti-Alzheimer, antifungal, antiviral, antithalassemia, iron chelation, antiobesity, antidiabetic, antihypertension, and antiphospholipase A2 (PLA2) activities, by the modulation of various targets and signaling pathways that have attracted much attention. However, the low solubility and poor bioavailability of quercetin have limited its applications; therefore, the researchers have tried to design and synthesize many new derivatives of quercetin through different strategies to modify quercetin restrictions and improve its biological activities. This review categorized the O-glycoside derivatives of Quercetin into two main classes, 3-O-glycoside and other O-glycoside derivatives. Also, it studied biological activities, structure-activity relationship (SAR), and the action mechanism of O-glycoside quercetin derivatives. Overall, we summarized past and present research for discovering new potent lead compounds.
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Affiliation(s)
- Seyedeh Roya Alizadeh
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ali Ebrahimzadeh
- Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
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7
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Baschieri A, Amorati R. Methods to Determine Chain-Breaking Antioxidant Activity of Nanomaterials beyond DPPH •. A Review. Antioxidants (Basel) 2021; 10:1551. [PMID: 34679687 PMCID: PMC8533328 DOI: 10.3390/antiox10101551] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
This review highlights the progress made in recent years in understanding the mechanism of action of nanomaterials with antioxidant activity and in the chemical methods used to evaluate their activity. Nanomaterials represent one of the most recent frontiers in the research for improved antioxidants, but further development is hampered by a poor characterization of the ''antioxidant activity'' property and by using oversimplified chemical methods. Inhibited autoxidation experiments provide valuable information about the interaction with the most important radicals involved in the lipid oxidation, namely alkylperoxyl and hydroperoxyl radicals, and demonstrate unambiguously the ability to stop the oxidation of organic materials. It is proposed that autoxidation methods should always complement (and possibly replace) the use of assays based on the quenching of stable radicals (such as DPPH• and ABTS•+). The mechanisms leading to the inhibition of the autoxidation (sacrificial and catalytic radical trapping antioxidant activity) are described in the context of nanoantioxidants. Guidelines for the selection of the appropriate testing conditions and of meaningful kinetic analysis are also given.
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Affiliation(s)
- Andrea Baschieri
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche (ISOF-CNR), Via P. Gobetti 101, 40129 Bologna, Italy;
| | - Riccardo Amorati
- Department of Chemistry “G. Ciamician”, University of Bologna, Via S. Giacomo 11, 40126 Bologna, Italy
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8
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Fizir M, Dahiru NS, Cui Y, Zhi H, Dramou P, He H. Simple and Efficient Detection Approach of Quercetin from Biological Matrix by Novel Surface Imprinted Polymer Based Magnetic Halloysite Nanotubes Prepared by a Sol-Gel Method. J Chromatogr Sci 2021; 59:681-695. [PMID: 33395480 DOI: 10.1093/chromsci/bmaa120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Indexed: 12/25/2022]
Abstract
Molecular imprinted polymers coated magnetic halloysite nanotubes (MHNTs-MIPs) were prepared through sol-gel method by using quercetin (Que), APTES and TEOS as template, monomer and cross-linker agent, respectively. The synthesized MHNTs-MIPs were characterized by fourier transform infrared, scanning electron microscope, transmission electron microscope, XRD and vibrating sample magnetometer. Various parameters influencing the binding capacity of the MHNTs-MIPs were investigated with the help of response surface methodology. Selectivity experiments showed that the MHNTs-MIPs exhibited the maximum selective rebinding to Que. Therefore, the MHNTs-MIPs was applied as a solid-phase extraction adsorbent for the extraction and preconcentration of quercetin and luteolin in serum and urine samples. The limits of detection for quercetin and luteolin range from 0.51 to 1.32 ng mL-1 in serum and from 0.23 to 1.05 ng mL-1 in urine, the recoveries are between 95.20 and 103.73% with the RSD less than 5.77%. While the recovery hardly decreased after several cycles. The designed MHNTs-MIP with high affinity, sensitivity and maximum selectivity toward Que in SPE might recommend a novel method for the extraction of flavonoids in other samples like natural products.
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Affiliation(s)
- Meriem Fizir
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China.,Laboratoire de Valorisation des Substances Naturelles, Université Djilali Bounaâma, Khemis-Miliana, Algeria
| | - Nasiru Sintali Dahiru
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China
| | - Yanru Cui
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China
| | - Hao Zhi
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China
| | - Pierre Dramou
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China
| | - Hua He
- Department of Analytical Chemistry, School of Sciences, China Pharmaceutical University, 24 Tongjia Alley, Nanjing 210009, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance, Pharmaceutical University, Ministry of Education, 639 Longmian Avenue, Nanjing, 211198, Jiangsu Province, China
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9
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Flieger J, Flieger W, Baj J, Maciejewski R. Antioxidants: Classification, Natural Sources, Activity/Capacity Measurements, and Usefulness for the Synthesis of Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4135. [PMID: 34361329 PMCID: PMC8347950 DOI: 10.3390/ma14154135] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023]
Abstract
Natural extracts are the source of many antioxidant substances. They have proven useful not only as supplements preventing diseases caused by oxidative stress and food additives preventing oxidation but also as system components for the production of metallic nanoparticles by the so-called green synthesis. This is important given the drastically increased demand for nanomaterials in biomedical fields. The source of ecological technology for producing nanoparticles can be plants or microorganisms (yeast, algae, cyanobacteria, fungi, and bacteria). This review presents recently published research on the green synthesis of nanoparticles. The conditions of biosynthesis and possible mechanisms of nanoparticle formation with the participation of bacteria are presented. The potential of natural extracts for biogenic synthesis depends on the content of reducing substances. The assessment of the antioxidant activity of extracts as multicomponent mixtures is still a challenge for analytical chemistry. There is still no universal test for measuring total antioxidant capacity (TAC). There are many in vitro chemical tests that quantify the antioxidant scavenging activity of free radicals and their ability to chelate metals and that reduce free radical damage. This paper presents the classification of antioxidants and non-enzymatic methods of testing antioxidant capacity in vitro, with particular emphasis on methods based on nanoparticles. Examples of recent studies on the antioxidant activity of natural extracts obtained from different species such as plants, fungi, bacteria, algae, lichens, actinomycetes were collected, giving evaluation methods, reference antioxidants, and details on the preparation of extracts.
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Affiliation(s)
- Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland
| | - Wojciech Flieger
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
| | - Jacek Baj
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
| | - Ryszard Maciejewski
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (W.F.); (J.B.); (R.M.)
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10
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Genovese D, Baschieri A, Vona D, Baboi RE, Mollica F, Prodi L, Amorati R, Zaccheroni N. Nitroxides as Building Blocks for Nanoantioxidants. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31996-32004. [PMID: 34156238 PMCID: PMC8289242 DOI: 10.1021/acsami.1c06674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nitroxides are an important class of radical trapping antioxidants whose promising biological activities are connected to their ability to scavenge peroxyl (ROO•) radicals. We have measured the rate constants of the reaction with ROO• (kinh) for a series of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) derivatives as 5.1 × 106, 1.1 × 106, 5.4 × 105, 3.7 × 105, 1.1 × 105, 1.9 × 105, and 5.6 × 104 M-1 s-1 for -H, -OH, -NH2, -COOH, -NHCOCH3, -CONH(CH2)3CH3, and ═O substituents in the 4 position, with a good Marcus relationship between log (kinh) and E° for the R2NO•/R2NO+ couple. Newly synthesized Pluronic-silica nanoparticles (PluS) having nitroxide moieties covalently bound to the silica surface (PluS-NO) through a TEMPO-CONH-R link and coumarin dyes embedded in the silica core, has kinh = 1.5 × 105 M-1 s-1. Each PluS-bound nitroxide displays an inhibition duration nearly double that of a structurally related "free" nitroxide. As each PluS-NO particle bears an average of 30 nitroxide units, this yields an overall ≈60-fold larger inhibition of the PluS-NO nanoantioxidant compared to the molecular analogue. The implications of these results for the development of novel nanoantioxidants based on nitroxide derivatives are discussed, such as the choice of the best linkage group and the importance of the regeneration cycle in determining the duration of inhibition.
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Affiliation(s)
- Damiano Genovese
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Andrea Baschieri
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), via Gobetti 101, 40129 Bologna, Italy
| | - Danilo Vona
- Department
of Chemistry, University of Bari, via Orabona 4, I-70126 Bari, Italy
| | - Ruxandra Elena Baboi
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via San Giacomo 11, 40126 Bologna, Italy
| | - Fabio Mollica
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via San Giacomo 11, 40126 Bologna, Italy
| | - Luca Prodi
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Riccardo Amorati
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via San Giacomo 11, 40126 Bologna, Italy
| | - Nelsi Zaccheroni
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
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11
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New Nanomaterials with Intrinsic Antioxidant Activity by Surface Functionalization of Niosomes with Natural Phenolic Acids. Pharmaceutics 2021; 13:pharmaceutics13060766. [PMID: 34063874 PMCID: PMC8224007 DOI: 10.3390/pharmaceutics13060766] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 12/25/2022] Open
Abstract
Nanoantioxidants have emerged as smart devices able to provide improved stability and biocompatibility and sustained and targeted release of conventional antioxidants. In the current research, a new family of nanoantioxidants has been developed by covalently grafting gallic (GA), caffeic (CF) and ferulic (FR) acid on the surfaces of Tween 80 niosomes. First, empty and curcumin (CUR)-loaded vesicles were prepared using a thin-layer evaporation technique and then functionalized with phenolic acids using carbodiimide chemistry. Nanoantioxidants obtained were characterized in terms of size, polydispersity index, zeta potential, and loading efficiency. Their antioxidant activity was studied by ABTS and DPPH assays. Surface functionalization of empty and CUR-loaded vesicles provided stable vesicles with intrinsic antioxidant properties. In vitro antioxidant assays highlighted that vesicles functionalized with FR or GA exhibited better antioxidant activity compared to CF-grafted niosomes. Furthermore, vesicles loaded with CUR and functionalized with GA and CF showed an enhanced scavenging ability of ABTS and DPPH radicals, compared to the single antioxidant-loaded formulations, highlighting an important synergic effect of CUR when used in combination with GA ad CF.
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12
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Massaro M, Noto R, Riela S. Past, Present and Future Perspectives on Halloysite Clay Minerals. Molecules 2020; 25:E4863. [PMID: 33096852 PMCID: PMC7587942 DOI: 10.3390/molecules25204863] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/16/2020] [Accepted: 10/17/2020] [Indexed: 02/07/2023] Open
Abstract
Halloysite nanotubes (HNTs), clay minerals belonging to the kaolin groups, are emerging nanomaterials which have attracted the attention of the scientific community due to their interesting features, such as low-cost, availability and biocompatibility. In addition, their large surface area and tubular structure have led to HNTs' application in different industrial purposes. This review reports a comprehensive overview of the historical background of HNT utilization in the last 20 years. In particular it will focus on the functionalization of the surfaces, both supramolecular and covalent, following applications in several fields, including biomedicine, environmental science and catalysis.
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Affiliation(s)
- Marina Massaro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy;
| | | | - Serena Riela
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo Viale delle Scienze, Ed. 17, 90128 Palermo, Italy;
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13
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Marrazzo P, O’Leary C. Repositioning Natural Antioxidants for Therapeutic Applications in Tissue Engineering. Bioengineering (Basel) 2020; 7:E104. [PMID: 32887327 PMCID: PMC7552777 DOI: 10.3390/bioengineering7030104] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 12/15/2022] Open
Abstract
Although a large panel of natural antioxidants demonstrate a protective effect in preventing cellular oxidative stress, their low bioavailability limits therapeutic activity at the targeted injury site. The importance to deliver drug or cells into oxidative microenvironments can be realized with the development of biocompatible redox-modulating materials. The incorporation of antioxidant compounds within implanted biomaterials should be able to retain the antioxidant activity, while also allowing graft survival and tissue recovery. This review summarizes the recent literature reporting the combined role of natural antioxidants with biomaterials. Our review highlights how such functionalization is a promising strategy in tissue engineering to improve the engraftment and promote tissue healing or regeneration.
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Affiliation(s)
- Pasquale Marrazzo
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso d’Augusto 237, 47921 Rimini (RN), Italy
| | - Cian O’Leary
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, 2 D02 Dublin, Ireland;
- Science Foundation Ireland Advanced Materials and Bioengineering (AMBER) Centre, RCSI, 2 D02 Dublin, Ireland
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14
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Villa CC, Galus S, Nowacka M, Magri A, Petriccione M, Gutiérrez TJ. Molecular sieves for food applications: A review. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.05.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Antipin AV, Grabovskii SA, Grabovskaya YS, Kabal’nova NN. Synergistic Effect for a Mixture of 3-Butyl-5-Amino-6-Methyluracil and Butylated Hydroxytoluene during Inhibited Styrene Autoxidation. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420030027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Arriagada F, Günther G, Morales J. Nanoantioxidant-Based Silica Particles as Flavonoid Carrier for Drug Delivery Applications. Pharmaceutics 2020; 12:E302. [PMID: 32224905 PMCID: PMC7238062 DOI: 10.3390/pharmaceutics12040302] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/21/2020] [Accepted: 03/21/2020] [Indexed: 01/09/2023] Open
Abstract
Nanosystems used in pharmaceutical formulations have shown promising results in enhancing the administration of drugs of difficult formulations. In particular, porous silica nanoparticles have demonstrated excellent properties for application in biological systems; however, there are still several challenges related to the development of more effective and biocompatible materials. An interesting approach to enhance these nanomaterials has been the development of nanoantioxidant carriers. In this work, a hybrid nanoantioxidant carrier based on porous silica nanoplatform with rosmarinic acid antioxidant immobilized on its surface were developed and characterized. Techniques such as dynamic light scattering (DLS), zeta potential, transmission electron microscopy (TEM), N2 adsorption-desorption measurements, differential scanning calorimetry (DSC), Fourier transform-infrared spectroscopy (FT-IR), and 2,2-diphenyl-1-picrylhydrazyl (DPPH●) assay were used to characterize and evaluate the antioxidant activity of nanocarriers. In addition, drug release profile was evaluated using two biorelevant media. The antioxidant activity of rosmarinic acid was maintained, suggesting the correct disposition of the moiety. Kinetic studies reveal that more morin is released in the simulated intestinal fluid than in the gastric one, while an anomalous non-Fickian release mechanism was observed. These results suggest a promising antioxidant nanocarrier suitable for future application in drug delivery.
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Affiliation(s)
- Francisco Arriagada
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, 5110033 Valdivia, Chile
| | - Germán Günther
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, 8380494 Santiago, Chile;
| | - Javier Morales
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, 8380494 Santiago, Chile;
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17
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Halloysite nanotubes: a green resource for materials and life sciences. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2020. [DOI: 10.1007/s12210-020-00886-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Abstract
Taking into account the excellent catalytic performance of halloysite nanotubes, the main focus of this review article is to unveil the research on halloysite nanotubes for the preparation of solid acids and their applications in acid catalysis.
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Affiliation(s)
- Aman Mahajan
- Department of Applied Sciences and Humanities
- Model Institute of Engineering and Technology
- Kot Bhalwal
- India
| | - Princy Gupta
- Department of Chemistry and Chemical Sciences
- Central University of Jammu
- Rahya-Suchani (Bagla)
- Jammu-181143
- India
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19
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Khalil I, Yehye WA, Etxeberria AE, Alhadi AA, Dezfooli SM, Julkapli NBM, Basirun WJ, Seyfoddin A. Nanoantioxidants: Recent Trends in Antioxidant Delivery Applications. Antioxidants (Basel) 2019; 9:E24. [PMID: 31888023 PMCID: PMC7022483 DOI: 10.3390/antiox9010024] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022] Open
Abstract
Antioxidants interact with free radicals, terminating the adverse chain reactions and converting them to harmless products. Antioxidants thus minimize the oxidative stress and play a crucial role in the treatment of free radicals-induced diseases. However, the effectiveness of natural and/or synthetic antioxidants is limited due to their poor absorption, difficulties to cross the cell membranes, and degradation during delivery, hence contributing to their limited bioavailability. To address these issues, antioxidants covalently linked with nanoparticles, entrapped in nanogel, hollow particles, or encapsulated into nanoparticles of diverse origin have been used to provide better stability, gradual and sustained release, biocompatibility, and targeted delivery of the antioxidants with superior antioxidant profiles. This review aims to critically evaluate the recent scientific evaluations of nanoparticles as the antioxidant delivery vehicles, as well as their contribution in efficient and enhanced antioxidant activities.
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Affiliation(s)
- Ibrahim Khalil
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603, Malaysia; (I.K.); (N.B.M.J.); (W.J.B.)
| | - Wageeh A. Yehye
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603, Malaysia; (I.K.); (N.B.M.J.); (W.J.B.)
| | - Alaitz Etxabide Etxeberria
- Drug Delivery Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 0627, New Zealand; (A.E.E.); (S.M.D.)
| | - Abeer A. Alhadi
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
- Drug Design and Development Research Group, Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Seyedehsara Masoomi Dezfooli
- Drug Delivery Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 0627, New Zealand; (A.E.E.); (S.M.D.)
| | - Nurhidayatullaili Binti Muhd Julkapli
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603, Malaysia; (I.K.); (N.B.M.J.); (W.J.B.)
| | - Wan Jefrey Basirun
- Nanotechnology and Catalysis Research Centre (NANOCAT), Institute for Advanced Studies, University of Malaya, Kuala Lumpur 50603, Malaysia; (I.K.); (N.B.M.J.); (W.J.B.)
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Ali Seyfoddin
- Drug Delivery Research Group, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 0627, New Zealand; (A.E.E.); (S.M.D.)
- School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 1142, New Zealand
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20
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Konopko A, Kusio J, Litwinienko G. Antioxidant Activity of Metal Nanoparticles Coated with Tocopherol-Like Residues-The Importance of Studies in Homo- and Heterogeneous Systems. Antioxidants (Basel) 2019; 9:E5. [PMID: 31861581 PMCID: PMC7022694 DOI: 10.3390/antiox9010005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 01/10/2023] Open
Abstract
Functionalized nanoparticles (NPs) attract great attention in pharmacy, diagnostics, and biomedical areas due to benefits like localization and unique interactions of NPs with biocomponents of living cells. In the present paper, we prepared and characterized two kinds of gold nanoparticles (AuNPs) coated with α-tocopherol-like residues: 1A were soluble in non-polar solvents and their antioxidant activity was tested during the peroxidation of a model hydrocarbon in a homogeneous system, whereas nanoparticles 1B were soluble in polar solvents and were applied as antioxidants in micellar and liposomal systems. The effectiveness of 1A is comparable to 2,2,5,7,8-pentamethylchroman-6-ol (PMHC, an analogue of α-tocopherol). Taking the results of the kinetic measurements, we calculated an average number of 2150 chromanol residues per one NP, suggesting a thick organic coating around the metal core. In heterogeneous systems, the peroxidation of methyl linoleate dispersed in Triton X-100 micelles or DMPC liposomes resulted in the observation that 1B (545 chromanol residues per one NP) was active enough to effectively inhibit peroxidation in a micellar system, but in a liposomal system, 1B behaved as a retardant (no clear induction period). The importance of microenvironment in heterogeneous systems on the overall antioxidant activity of nanoparticles is discussed.
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Affiliation(s)
- Adrian Konopko
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (A.K.); (J.K.)
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St, 02-093 Warsaw, Poland
| | - Jaroslaw Kusio
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (A.K.); (J.K.)
| | - Grzegorz Litwinienko
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (A.K.); (J.K.)
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, ul. Żwirki i Wigury 101, 02-089 Warsaw, Poland
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21
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Viglianisi C, Scarlini A, Tofani L, Menichetti S, Baschieri A, Amorati R. Magnetic nanoantioxidants with improved radical-trapping stoichiometry as stabilizers for inhibition of peroxide formation in ethereal solvents. Sci Rep 2019; 9:17219. [PMID: 31748620 PMCID: PMC6868006 DOI: 10.1038/s41598-019-53531-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/31/2019] [Indexed: 01/22/2023] Open
Abstract
Graphite-coated magnetic cobalt nanoparticles (CoNPs) decorated with hindered phenolic antioxidant analogues of 2,6-di-tert-butyl-4-methylphenol (BHT, E321) provided easily removable nanoantioxidants capable of preventing the autoxidation of organic solvents as tetrahydrofuran (THF).
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Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Firenze, Italy.
| | - Alessia Scarlini
- Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Firenze, Italy
| | - Lorenzo Tofani
- Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Firenze, Italy
| | - Stefano Menichetti
- Department of Chemistry "U. Schiff", University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Firenze, Italy
| | - Andrea Baschieri
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
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22
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Fontana A, Guernelli S, Di Crescenzo A, Di Profio P, Palomba F, De Crescentini L, Baschieri A, Amorati R. Cardanol-like co-surfactants solubilized in pegylated micelles keep their antioxidant activity and preserve polyethylene glycol chains from oxidation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Baschieri A, Pizzol R, Guo Y, Amorati R, Valgimigli L. Calibration of Squalene, p-Cymene, and Sunflower Oil as Standard Oxidizable Substrates for Quantitative Antioxidant Testing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6902-6910. [PMID: 31132263 DOI: 10.1021/acs.jafc.9b01400] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The autoxidation kinetics of stripped sunflower oil (SSO), squalene (SQ), and p-cymene ( p-C) initiated by 2,2'-azobis(isobutyronitrile) at 303 K were investigated under controlled conditions by differential oximetry in order to build reference model systems that are representative of the natural variability of oxidizable materials, for quantitative antioxidant testing. Rate constants for oxidative chain propagation ( kp) and chain termination (2 kt) and the oxidizability ( kp/√2 kt) were measured using 2,6-di- tert-butyl-4-methoxyphenol, 2,2,5,7,8-pentamethyl-6-chromanol, BHT, and 4-methoxyphenol as reference antioxidants. Measured values of kp (M-1 s-1)/2 kt (M-1 s-1)/oxidizability (M-1/2 s-1/2) at 303 K in chlorobenzene were 66.9/3.45 × 106/3.6 × 10-2, 68.0/7.40 × 106/2.5 × 10-2, and 0.83/2.87 × 106/4.9 × 10-4, respectively, for SSO, SQ, and p-C. Quercetin, magnolol, caffeic acid phenethyl ester, and 2,4,6-trimethylphenol were investigated to validate calibrations. The distinctive usefulness of the three substrates in testing antioxidants is discussed.
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Affiliation(s)
- Andrea Baschieri
- Department of Chemistry "G. Ciamician" , University of Bologna , Via S. Giacomo 11 , 40126 Bologna , Italy
| | - Romeo Pizzol
- Department of Chemistry "G. Ciamician" , University of Bologna , Via S. Giacomo 11 , 40126 Bologna , Italy
| | - Yafang Guo
- Department of Chemistry "G. Ciamician" , University of Bologna , Via S. Giacomo 11 , 40126 Bologna , Italy
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician" , University of Bologna , Via S. Giacomo 11 , 40126 Bologna , Italy
| | - Luca Valgimigli
- Department of Chemistry "G. Ciamician" , University of Bologna , Via S. Giacomo 11 , 40126 Bologna , Italy
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24
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Massaro M, Barone G, Biddeci G, Cavallaro G, Di Blasi F, Lazzara G, Nicotra G, Spinella C, Spinelli G, Riela S. Halloysite nanotubes-carbon dots hybrids multifunctional nanocarrier with positive cell target ability as a potential non-viral vector for oral gene therapy. J Colloid Interface Sci 2019; 552:236-246. [PMID: 31129295 DOI: 10.1016/j.jcis.2019.05.062] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/10/2019] [Accepted: 05/19/2019] [Indexed: 10/26/2022]
Abstract
HYPOTHESIS The use of non-viral vectors for gene therapy is hindered by their lower transfection efficiency and their lacking of self-track ability. EXPERIMENTS This study aims to investigate the biological properties of halloysite nanotubes-carbon dots hybrid and its potential use as non-viral vector for oral gene therapy. The morphology and the chemical composition of the halloysite hybrid were investigated by means of high angle annular dark field scanning TEM and electron energy loss spectroscopy techniques, respectively. The cytotoxicity and the antioxidant activity were investigated by standard methods (MTS, DPPH and H2O2, respectively) using human cervical cancer HeLa cells as model. Studies of cellular uptake were carried out by fluorescence microscopy. Finally, we investigated the loading and release ability of the hybrid versus calf thymus DNA by fluorescence microscopy, circular dichroism, dynamic light scattering and ζ-potential measurements. FINDINGS All investigations performed confirmed the existence of strong electrostatic interactions between the DNA and the halloysite hybrid, so it shows promise as a multi-functional cationic non-viral vector that has also possesses intracellular tracking capability and promising in vitro antioxidant potential.
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Affiliation(s)
- Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Giuseppa Biddeci
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy; Institute of Biomedicine and Molecular Immunology, CNR, IBIM, Via Ugo La Malfa, 153, 90146 Palermo, Italy
| | - Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica (DiFC), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Francesco Di Blasi
- Institute of Biomedicine and Molecular Immunology, CNR, IBIM, Via Ugo La Malfa, 153, 90146 Palermo, Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica (DiFC), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | | | | | - Gaetano Spinelli
- Institute of Biomedicine and Molecular Immunology, CNR, IBIM, Via Ugo La Malfa, 153, 90146 Palermo, Italy
| | - Serena Riela
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.
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25
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Massaro M, Buscemi G, Arista L, Biddeci G, Cavallaro G, D’Anna F, Di Blasi F, Ferrante A, Lazzara G, Rizzo C, Spinelli G, Ullrich T, Riela S. Multifunctional Carrier Based on Halloysite/Laponite Hybrid Hydrogel for Kartogenin Delivery. ACS Med Chem Lett 2019; 10:419-424. [PMID: 30996773 PMCID: PMC6466553 DOI: 10.1021/acsmedchemlett.8b00465] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 10/22/2018] [Indexed: 12/14/2022] Open
Abstract
A novel carrier system based on halloysite nanotubes (HNT), for the potential intraarticular delivery of kartogenin (KGN) by means laponite (Lap) hydrogel (HNT/KGN/Lap), is developed. The drug was first loaded into HNT, and the hybrid composite obtained was used as filler for laponite hydrogel. Both the filler and the hydrogel were thoroughly investigated by several techniques and the hydrogel morphology was imaged by transmission electron microscopy. Furthermore, the gelating ability of laponite in the presence of the filler and the rheological properties of the hybrid hydrogel were also investigated. The kinetic release of kartogenin from HNT and HNT/Lap hybrid hydrogel was studied both in physiological conditions and in ex vivo synovial fluid. In the last case, the kinetic results highlighted that HNT carrier can effectively release KGN in a sustained manner for at least 38 days. Finally, a preliminary biological assays showed that the HNT/KGN/Lap hybrid hydrogel did not exhibit any cytotoxic effect.
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Affiliation(s)
- Marina Massaro
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Gabriella Buscemi
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Luca Arista
- Global
Discovery Chemistry, Novartis Institutes
for BioMedical Research, CH-4002 Basel, Switzerland
| | - Giuseppa Biddeci
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
- Istituto
di Biomedicina ed Immunologia Molecolare - Consiglio Nazionale delle
Ricerche, Via Ugo La
Malfa 153, 90146 Palermo, Italy
| | - Giuseppe Cavallaro
- Dipartimento
di Fisica e Chimica, Università degli
Studi di Palermo, Viale
delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Francesca D’Anna
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Francesco Di Blasi
- Istituto
di Biomedicina ed Immunologia Molecolare - Consiglio Nazionale delle
Ricerche, Via Ugo La
Malfa 153, 90146 Palermo, Italy
| | - Angelo Ferrante
- Dipartimento
Biomedico di Medicina Interna e Specialistica, Sezione di Reumatologia, Università degli Studi di Palermo, 90128 Palermo, Italy
| | - Giuseppe Lazzara
- Dipartimento
di Fisica e Chimica, Università degli
Studi di Palermo, Viale
delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Carla Rizzo
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
| | - Gaetano Spinelli
- Istituto
di Biomedicina ed Immunologia Molecolare - Consiglio Nazionale delle
Ricerche, Via Ugo La
Malfa 153, 90146 Palermo, Italy
| | - Thomas Ullrich
- Global
Discovery Chemistry, Novartis Institutes
for BioMedical Research, CH-4002 Basel, Switzerland
| | - Serena Riela
- Dipartimento
STEBICEF, Sez. Chimica, Università
degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy
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26
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Arriagada F, Günther G, Nos J, Nonell S, Olea-Azar C, Morales J. Antioxidant Nanomaterial Based on Core⁻Shell Silica Nanospheres with Surface-Bound Caffeic Acid: A Promising Vehicle for Oxidation-Sensitive Drugs. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E214. [PMID: 30736331 PMCID: PMC6409729 DOI: 10.3390/nano9020214] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 01/30/2019] [Accepted: 02/01/2019] [Indexed: 01/13/2023]
Abstract
The design of efficient, biocompatible, and easily prepared vehicles for drug delivery is a subject of great interest for medicine and pharmaceutical sciences. To achieve the above goals, surface functionalization is critical. Here, we report a hybrid nanocarrier consisting of core⁻shell silica nanospheres and the antioxidant caffeic acid linked to the surface, to evaluate their in vitro antioxidant capacity, their capability to protect oxidation-sensitive compounds incorporated in nanoparticles, and to study the interaction with bovine serum albumin protein. The results show that the radical-scavenging activity of immobilized caffeic acid is attenuated in the silica nanospheres; however, other antioxidant properties such as Fe2+-chelating activity and singlet oxygen quenching are enhanced. In addition, caffeic acid is protected from binding to proteins by the nanoparticle, suggesting that this nanosystem is more likely to maintain the antioxidant activity of caffeic acid in biological media. Finally, the natural antioxidant barrier on the nanocarrier is able to delay the degradation of a compound incorporated into this nanovehicle. Considering all findings, this work proposes a suitable tool for pharmaceutical and cosmetic industries as an antioxidant nanocarrier for oxidation-sensitive drugs.
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Affiliation(s)
- Francisco Arriagada
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile.
| | - Germán Günther
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile.
| | - Jaume Nos
- Institut Químic de Sarrià (IQS), University Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
| | - Santi Nonell
- Institut Químic de Sarrià (IQS), University Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
| | - Claudio Olea-Azar
- Departamento de Química Inorgánica y Analítica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile.
| | - Javier Morales
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile.
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27
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Baschieri A, Amorati R, Benelli T, Mazzocchetti L, D'Angelo E, Valgimigli L. Enhanced Antioxidant Activity under Biomimetic Settings of Ascorbic Acid Included in Halloysite Nanotubes. Antioxidants (Basel) 2019; 8:E30. [PMID: 30691231 PMCID: PMC6406349 DOI: 10.3390/antiox8020030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 12/31/2022] Open
Abstract
Antioxidant activity of native vitamin C (ascorbic acid, AH₂) is hampered by instability in solution. Selective loading of AH₂ into the inner lumen of natural halloysite nanotubes (HNT) yields a composite nanoantioxidant (HNT/AH₂), which was characterized and investigated for its reactivity with the persistent 1,1-diphenyl-2-picrylhydrazyl (DPPH•) radical and with transient peroxyl radicals in the inhibited autoxidation of organic substrates, both in organic solution (acetonitrile) and in buffered (pH 7.4) water in comparison with native AH₂. HNT/AH₂ showed excellent antioxidant performance being more effective than native ascorbic acid by 131% in acetonitrile and 290% (three-fold) in aqueous solution, under identical settings. Reaction with peroxyl radicals has a rate constant of 1.4 × 10⁶ M-1 s-1 and 5.1 × 10⁴ M-1 s-1, respectively, in buffered water (pH 7.4) and acetonitrile, at 30 °C. Results offer physical understanding of the factors governing HNT/AH₂ reactivity. Improved performance of HNT/AH₂ is unprecedented among forms of stabilized ascorbic acid and its relevance is discussed on kinetic grounds.
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Affiliation(s)
- Andrea Baschieri
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, I-40126 Bologna, Italy.
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, I-40126 Bologna, Italy.
| | - Tiziana Benelli
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Laura Mazzocchetti
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Emanuele D'Angelo
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy.
| | - Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, I-40126 Bologna, Italy.
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Massaro M, Riela S. Organo-Clay Nanomaterials Based on Halloysite and Cyclodextrin as Carriers for Polyphenolic Compounds. J Funct Biomater 2018; 9:E61. [PMID: 30400319 PMCID: PMC6306943 DOI: 10.3390/jfb9040061] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 11/17/2022] Open
Abstract
Hybrid material based on halloysite covalently linked to a hyper-reticulated cyclodextrin network was investigated as a potential carrier for polyphenolic compounds. The absorption ability of the hybrid system was studied in different pH conditions as well as the kinetic release of curcumin, chosen as a drug model. A preliminary study was performed to assess the antioxidant capacity of the obtained carrier. The obtained results highlighted that the curcumin molecule can have sustained release from the carrier over the time, retaining its antioxidant properties due to the combination of two different host systems that give rise to an hyper-reticulated structure, allowing an increase in the drug loading and stabilization. Therefore, this work puts forward an efficient strategy to prepare organic-inorganic hybrids with three different cavities that could encapsulate two or more drug molecules with different physico-chemical properties.
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Affiliation(s)
- Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University o Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.
| | - Serena Riela
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University o Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.
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29
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Wardhono EY, Wahyudi H, Agustina S, Oudet F, Pinem MP, Clausse D, Saleh K, Guénin E. Ultrasonic Irradiation Coupled with Microwave Treatment for Eco-friendly Process of Isolating Bacterial Cellulose Nanocrystals. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E859. [PMID: 30347805 PMCID: PMC6215109 DOI: 10.3390/nano8100859] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/17/2018] [Accepted: 10/17/2018] [Indexed: 12/02/2022]
Abstract
The isolation of crystalline regions from fibers cellulose via the hydrolysis route generally requires corrosive chemicals, high-energy demands, and long reaction times, resulting in high economic costs and environmental impact. From this basis, this work seeks to develop environment-friendly processes for the production of Bacterial Cellulose Nanocrystals (BC-NC). To overcome the aforementioned issues, this study proposes a fast, highly-efficient and eco-friendly method for the isolation of cellulose nanocrystals from Bacterial Cellulose, BC. A two-step processes is considered: (1) partial depolymerization of Bacterial Cellulose (DP-BC) under ultrasonic conditions; (2) extraction of crystalline regions (BC-NC) by treatment with diluted HCl catalyzed by metal chlorides (MnCl₂ and FeCl₃.6H₂O) under microwave irradiation. The effect of ultrasonic time and reactant and catalyst concentrations on the index crystallinity (CrI), chemical structure, thermal properties, and surface morphology of DP-BC and BC-NC were evaluated. The results indicated that the ultrasonic treatment induced depolymerization of BC characterized by an increase of the CrI. The microwave assisted by MnCl₂-catalyzed mild acid hydrolysis enhanced the removal of the amorphous regions, yielding BC-NC. A chemical structure analysis demonstrated that the chemical structures of DP-BC and BC-NC remained unchanged after the ultrasonic treatment and MnCl₂-catalyzed acid hydrolysis process.
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Affiliation(s)
| | - Hadi Wahyudi
- University of Sultan Ageng Tirtayasa, Cilegon 42435, Banten, Indonesia.
| | - Sri Agustina
- University of Sultan Ageng Tirtayasa, Cilegon 42435, Banten, Indonesia.
| | - François Oudet
- Physico-Chemical Analysis Services, University of Technology of Compiègne, Sorbonne Universities, 60200 Compiègne, France.
| | - Mekro Permana Pinem
- Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM), University of Technology of Compiègne, Sorbonne Universities, 60200 Compiègne, France.
| | - Danièle Clausse
- Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM), University of Technology of Compiègne, Sorbonne Universities, 60200 Compiègne, France.
| | - Khashayar Saleh
- Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM), University of Technology of Compiègne, Sorbonne Universities, 60200 Compiègne, France.
| | - Erwann Guénin
- Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM), University of Technology of Compiègne, Sorbonne Universities, 60200 Compiègne, France.
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30
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Chitosan-functionalized supermagnetic halloysite nanotubes for covalent laccase immobilization. Carbohydr Polym 2018; 194:208-216. [DOI: 10.1016/j.carbpol.2018.04.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/10/2018] [Accepted: 04/10/2018] [Indexed: 11/23/2022]
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Baschieri A, Del Secco B, Zaccheroni N, Valgimigli L, Amorati R. The Role of Onium Salts in the Pro-Oxidant Effect of Gold Nanoparticles in Lipophilic Environments. Chemistry 2018; 24:9113-9119. [PMID: 29689123 DOI: 10.1002/chem.201801110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/06/2018] [Indexed: 01/11/2023]
Abstract
Metal nanoparticles are reported to be toxic due to the generation of free radicals at their surface. Relatively inert thiol-capped gold nanoparticles (AuNPs) have been reported to induce radical formation in the presence of hydroperoxides, which would conflict with their potential use as inert scaffolds for the design of novel nano-antioxidants. With the aim of clarifying this aspect, we investigated the pro-oxidant activity of dodecanethiol-capped AuNPs (∼5 nm diameter), prepared through the Brust-Schiffrin synthesis, by oxygen-uptake kinetic studies. The pro-oxidant activity was found to be proportional to the impurities of the transfer agent tetraoctylammonium bromide (TOAB) left from the synthesis and decreased on repeated washing of the nanoparticles. Under identical settings similar batches of AuNP (∼9 nm diameter) prepared through the Ulman method without onium salts showed no pro-oxidant behavior. The alternative onium phase-transfer agents Oct4 NBF4 (Oct=octyl), Hex4 NBF4 (Hex=hexyl), and Hex4 NPF6 were comparatively investigated and showed lower pro-oxidant activity depending on the counterion (Br- >PF6- >BF4- ).
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Affiliation(s)
- Andrea Baschieri
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Benedetta Del Secco
- Department of Chemistry "G. Ciamician", University of Bologna, Via F. Selmi 2, 40126, Bologna, Italy
| | - Nelsi Zaccheroni
- Department of Chemistry "G. Ciamician", University of Bologna, Via F. Selmi 2, 40126, Bologna, Italy
| | - Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
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Massaro M, Cavallaro G, Colletti CG, Lazzara G, Milioto S, Noto R, Riela S. Chemical modification of halloysite nanotubes for controlled loading and release. J Mater Chem B 2018; 6:3415-3433. [PMID: 32254440 DOI: 10.1039/c8tb00543e] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Clay minerals have been used for medical purposes from ancient times. Among them, the halloysite nanotube, an aluminosilicate of the kaolin group, is an emerging nanomaterial which possesses peculiar chemical characteristics. By means of suitable modifications, such as supramolecular functionalization or covalent modifications, it is possible to obtain novel nanomaterials with tunable properties for several applications. In this context the covalent grafting of suitable organic moieties on the external surface or in the halloysite lumen has been exploited to improve the loading and release of several biologically active molecules. The resulting hybrid nanomaterials have been applied as drug carrier and delivery systems, as fillers for hydrogels, in tissue regeneration and in the gene delivery field. Furthermore the loading and release of specific molecules have been also investigated for environmental purposes. This review summarizes the main developments in the halloysite modifications in the last 20 years with a particular attention to the development in the past two years.
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Affiliation(s)
- Marina Massaro
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 17, 90128 Palermo, Italy.
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33
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Wang X, Gong J, Rong R, Gui Z, Hu T, Xu X. Halloysite Nanotubes-Induced Al Accumulation and Fibrotic Response in Lung of Mice after 30-Day Repeated Oral Administration. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2925-2933. [PMID: 29470912 DOI: 10.1021/acs.jafc.7b04615] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Natural halloysite (Al2Si2O5(OH)4· nH2O) nanotubes (HNT) are clay materials with hollow tubular structure and are widely applied in many fields. Many in vitro studies indicate that HNTs exhibit a high level of biocompatibility; however, the in vivo toxicity of HNTs remains unclear. In this study, the biodistribution and pulmonary toxicity of the purified HNTs in mice were investigated after intragastric administration for 30 days. HNTs have high stability in biological conditions. Oral administration of HNTs caused significant Al accumulation predominantly in the lung with relative slight effects on Si biodistribution. Oral administration of HNTs stimulated the growth of the mice at low dose (5 mg/kg BW) with no pulmonary toxicity but inhibited the mouse growth and resulted in oxidative stress and inflammation in lung at high dose (50 mg/kg BW). In addition, oral HNTs at high dose could be absorbed from the gastrointestinal tract and deposited in lung and could also induce pulmonary fibrosis.
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Affiliation(s)
- Xue Wang
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Jiachun Gong
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Rui Rong
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Zongxiang Gui
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Tingting Hu
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Xiaolong Xu
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
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Abstract
Nanomaterials represent one of the most promising frontiers in the research for improved antioxidants. Some nanomaterials, including organic (i.e. melanin, lignin) metal oxides (i.e. cerium oxide) or metal (i.e. gold, platinum) based nanoparticles, exhibit intrinsic redox activity that is often associated with radical trapping and/or with superoxide dismutase-like and catalase-like activities. Redox inactive nanomaterials can be transformed into antioxidants by grafting low molecular weight antioxidants on them. Herein, we propose a classification of nanoantioxidants based on their mechanism of action, and we review the chemical methods used to measure antioxidant activity by providing a rationale of the chemistry behind them.
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Affiliation(s)
- Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, Bologna 40126, Italy.
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35
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Abstract
The review provides an overview of the mesoporous inorganic particles employed as drug delivery systems for controlled and sustained release of drugs. We have classified promising nanomaterials for drug delivery on the basis of their natural or synthetic origin. Nanoclays are available in different morphologies (nanotubes, nanoplates and nanofibers) and they are typically available at low cost from natural resources. The surface chemistry of nanoclays is versatile for targeted modifications to control loading and release properties. Synthetic nanomaterials (imogolite, laponite and mesoporous silica) present the advantages of well-established purity and availability with size features that are finely controlled. Both nanoclays and inorganic synthetic nanoparticles can be functionalized forming organic/inorganic architectures with stimuli-responsive features.
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36
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Cavallaro G, Lazzara G, Milioto S, Parisi F. Halloysite Nanotubes for Cleaning, Consolidation and Protection. CHEM REC 2018; 18:940-949. [PMID: 29320613 DOI: 10.1002/tcr.201700099] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 01/02/2018] [Indexed: 11/06/2022]
Abstract
Herein, we report our recent research concerning the development of halloysite based protocols for cleaning, consolidation and protection purposes. Surface modification of halloysite cavity by anionic surfactants was explored to fabricate inorganic micelles able to solubilize hydrophobic contaminants. Hybrid dispersions based on halloysite and ecocompatible polymers were tested as consolidants for paper and waterlogged archaeological woods. Encapsulation of deacidifying and flame retardant agents within the halloysite lumen was conducted with aim to obtain nanofiller with a long-term protection ability. The results prove the suitability and versatility of halloysite nanotubes, which are perspective inorganic nanoparticles within materials science, remedation and conservation of cultural heritage fields.
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Affiliation(s)
- Giuseppe Cavallaro
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Giuseppe Lazzara
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Stefana Milioto
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Filippo Parisi
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
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37
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Massaro M, Colletti CG, Buscemi G, Cataldo S, Guernelli S, Lazzara G, Liotta LF, Parisi F, Pettignano A, Riela S. Palladium nanoparticles immobilized on halloysite nanotubes covered by a multilayer network for catalytic applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj02932f] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Halloysite nanotubes were functionalized with bis-vinyl imidazolium salts and PdNPs to obtain an efficient catalyst for fine chemical synthesis.
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Affiliation(s)
- Marina Massaro
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Carmelo G. Colletti
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Gabriella Buscemi
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Salvatore Cataldo
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Susanna Guernelli
- Dipartimento di Chimica “Giacomo Ciamician”
- University of Bologna
- 40126 Bologna
- Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR
- 90146 Palermo
- Italy
| | - Filippo Parisi
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Alberto Pettignano
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
| | - Serena Riela
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- 90128 Palermo
- Italy
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38
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Khodzhaeva V, Makeeva A, Ulyanova V, Zelenikhin P, Evtugyn V, Hardt M, Rozhina E, Lvov Y, Fakhrullin R, Ilinskaya O. Binase Immobilized on Halloysite Nanotubes Exerts Enhanced Cytotoxicity toward Human Colon Adenocarcinoma Cells. Front Pharmacol 2017; 8:631. [PMID: 28955235 PMCID: PMC5600959 DOI: 10.3389/fphar.2017.00631] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 08/28/2017] [Indexed: 01/02/2023] Open
Abstract
Many ribonucleases (RNases) are considered as promising tools for antitumor therapy because of their selective cytotoxicity toward cancer cells. Binase, the RNase from Bacillus pumilus, triggers apoptotic response in cancer cells expressing RAS oncogene which is mutated in a large percentage of prevalent and deadly malignancies including colorectal cancer. The specific antitumor effect of binase toward RAS-transformed cells is due to its direct binding of RAS protein and inhibition of downstream signaling. However, the delivery of proteins to the intestine is complicated by their degradation in the digestive tract and subsequent loss of therapeutic activity. Therefore, the search of new systems for effective delivery of therapeutic proteins is an actual task. This study is aimed to the investigation of antitumor effect of binase immobilized on natural halloysite nanotubes (HNTs). Here, we have developed the method of binase immobilization on HNTs and optimized the conditions for the enzyme loading and release (i); we have found the non-toxic concentration of pure HNTs which allows to distinguish HNTs- and binase-induced cytotoxic effects (ii); using dark-field and fluorescent microscopy we have proved the absorption of binase-loaded HNTs on the cell surface (iii) and demonstrated that binase-halloysite nanoformulations possessed twice enhanced cytotoxicity toward tumor colon cells as compared to the cytotoxicity of binase itself (iv). The enhanced antitumor activity of biocompatible binase-HNTs complex confirms the advisability of its future development for clinical practice.
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Affiliation(s)
- Vera Khodzhaeva
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Anna Makeeva
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Pavel Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Vladimir Evtugyn
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Martin Hardt
- Imaging Unit, Biomedical Research Center Seltersberg, Justus Liebig University GiessenGiessen, Germany
| | - Elvira Rozhina
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Yuri Lvov
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
- Institute for Micromanufacturing, Louisiana Tech University, RustonLA, United States
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
- Institute for Micromanufacturing, Louisiana Tech University, RustonLA, United States
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
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Abstract
Clays for drug delivery have been used from ancient time due to the large availability of clay minerals and their unprecedented properties. The empirical use of nanoclays from the past is converted in a stimulating scientific task aimed at building up nanoarchitectonic vehicles for drug delivery in a targeted and stimuli-responsive fashion. Here the historical aspects are discussed; next the modern examples of applications of different clay-based materials are discussed. A special focus is given to halloysite clay nanotubes, which are an emerging and very promising nanomaterial for drug-delivery purposes due to its special morphology and unique chemical properties. Advantages and limitations of these natural nanomaterials are critically discussed pointing out the future perspectives and directions for further research.
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40
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Amorati R, Baschieri A, Cowden A, Valgimigli L. The Antioxidant Activity of Quercetin in Water Solution. Biomimetics (Basel) 2017; 2:E9. [PMID: 31105172 PMCID: PMC6352608 DOI: 10.3390/biomimetics2030009] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/19/2017] [Accepted: 06/22/2017] [Indexed: 01/11/2023] Open
Abstract
Despite its importance, little is known about the absolute performance and the mechanism for quercetin's antioxidant activity in water solution. We have investigated this aspect by combining differential oxygen-uptake kinetic measurements and B3LYP/6311+g (d,p) calculations. At pH = 2.1 (30 °C), quercetin had modest activity (kinh = 4.0 × 103 M-1 s-1), superimposable to catechol. On raising the pH to 7.4, reactivity was boosted 40-fold, trapping two peroxyl radicals in the chromen-4-one core and two in the catechol with kinh of 1.6 × 105 and 7.0 × 104 M-1 s-1. Reaction occurs from the equilibrating mono-anions in positions 4' and 7 and involves firstly the OH in position 3, having bond dissociation enthalpies of 75.0 and 78.7 kcal/mol, respectively, for the two anions. Reaction proceeds by a combination of proton-coupled electron-transfer mechanisms: electron⁻proton transfer (EPT) and sequential proton loss electron transfer (SPLET). Our results help rationalize quercetin's reactivity with peroxyl radicals and its importance under biomimetic settings, to act as a nutritional antioxidant.
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Affiliation(s)
- Riccardo Amorati
- University of Bologna, Department of Chemistry "G. Ciamician", Via S. Giacomo 11, 40126 Bologna, Italy.
| | - Andrea Baschieri
- University of Bologna, Department of Chemistry "G. Ciamician", Via S. Giacomo 11, 40126 Bologna, Italy.
| | - Adam Cowden
- School of Chemistry (Rm 267), University of Edinburgh, West Mains Road, Edinburgh EH9 3FJ, UK.
| | - Luca Valgimigli
- University of Bologna, Department of Chemistry "G. Ciamician", Via S. Giacomo 11, 40126 Bologna, Italy.
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41
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Gaaz TS, Sulong AB, Kadhum AAH, Al-Amiery AA, Nassir MH, Jaaz AH. The Impact of Halloysite on the Thermo-Mechanical Properties of Polymer Composites. Molecules 2017; 22:E838. [PMID: 28531126 PMCID: PMC6154593 DOI: 10.3390/molecules22050838] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/02/2022] Open
Abstract
Nanotubular clay minerals, composed of aluminosilicate naturally structured in layers known as halloysite nanotubes (HNTs), have a significant reinforcing impact on polymer matrixes. HNTs have broad applications in biomedical applications, the medicine sector, implant alloys with corrosion protection and manipulated transportation of medicines. In polymer engineering, different research studies utilize HNTs that exhibit a beneficial enhancement in the properties of polymer-based nanocomposites. The dispersion of HNTs is improved as a result of pre-treating HNTs with acids. The HNTs' percentage additive up to 7% shows the highest improvement of tensile strength. The degradation of the polymer can be also significantly improved by doping a low percentage of HNTs. Both the mechanical and thermal properties of polymers were remarkably improved when mixed with HNTs. The effects of HNTs on the mechanical and thermal properties of polymers, such as ultimate strength, elastic modulus, impact strength and thermal stability, are emphasized in this study.
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Affiliation(s)
- Tayser Sumer Gaaz
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
- Department of Machinery Equipment Engineering Techniques, Technical College Al-Musaib, Al-Furat Al-Awsat Technical University, Al-Musaib, Babil 51009, Iraq.
| | - Abu Bakar Sulong
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Abdul Amir H Kadhum
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Ahmed A Al-Amiery
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
| | - Mohamed H Nassir
- Program of Chemical Engineering, Taylor's University-Lakeside Campus, Subang Jaya, Selangor 47500, Malaysia.
| | - Ahed Hameed Jaaz
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia.
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Cataldo VA, Cavallaro G, Lazzara G, Milioto S, Parisi F. Coffee grounds as filler for pectin: Green composites with competitive performances dependent on the UV irradiation. Carbohydr Polym 2017; 170:198-205. [PMID: 28521987 DOI: 10.1016/j.carbpol.2017.04.092] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/24/2017] [Accepted: 04/27/2017] [Indexed: 12/11/2022]
Abstract
Novel composite bioplastics were successfully prepared by filling pectin matrix with treated coffee grounds. The amount of coffee dispersed into the pectin was changed within a wide filler range. The morphology of the pectin/coffee hybrid films was studied by microscopic techniques in order to investigate their mesoscopic structure as well as the sizes distribution of the particles dispersed into the matrix. The micrographs showed that the coffee grounds are uniformly dispersed within the polymeric matrix. The morphological characteristics of the biocomposite films were correlated to their properties, such as wettability, water uptake, thermal behavior and mechanical performances. Dynamic mechanical test were conducted as a function of the humidity conditions. As a general result, a worsening of the mechanical performances was induced by the addition of the coffee grounds into the pectin. An additional UV curing treatment was conducted on the pectin/coffee films with the aim to improve their tensile and viscoelastic features. The cured films showed promising and tunable properties that are dependent on both the filler content and the UV irradiation. In particular, the presence of single coffee particles into the pectin matrix renders the UV curing treatment effective in the enhancement of the elasticity as well as the traction resistance, whereas the cured composite films containing coffee clusters showed only more elastic characteristics. With this study, we fabricated pectin/coffee bioplastics with controlled behavior appealing for specific application within the food packaging.
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Affiliation(s)
- Vincenzo Alessandro Cataldo
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy
| | - Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy.
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy
| | - Stefana Milioto
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy
| | - Filippo Parisi
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy
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Amorati R, Valgimigli L, Viglianisi C, Schmallegger M, Neshchadin D, Gescheidt G. Proton-Coupled Electron Transfer from Hydrogen-Bonded Phenols to Benzophenone Triplets. Chemistry 2017; 23:5299-5306. [DOI: 10.1002/chem.201605931] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Indexed: 01/15/2023]
Affiliation(s)
- Riccardo Amorati
- University of Bologna; Department of Chemistry “G. Ciamician”; Via S. Giacomo 11 40126 Bologna Italy
| | - Luca Valgimigli
- University of Bologna; Department of Chemistry “G. Ciamician”; Via S. Giacomo 11 40126 Bologna Italy
| | - Caterina Viglianisi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Max Schmallegger
- Institute of Physical and Theoretical Chemistry; Graz University of Technology, NAWI Graz; Stremayrgasse 9 8010 Graz Austria
| | - Dmytro Neshchadin
- Institute of Physical and Theoretical Chemistry; Graz University of Technology, NAWI Graz; Stremayrgasse 9 8010 Graz Austria
| | - Georg Gescheidt
- Institute of Physical and Theoretical Chemistry; Graz University of Technology, NAWI Graz; Stremayrgasse 9 8010 Graz Austria
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44
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Massaro M, Lazzara G, Milioto S, Noto R, Riela S. Covalently modified halloysite clay nanotubes: synthesis, properties, biological and medical applications. J Mater Chem B 2017; 5:2867-2882. [DOI: 10.1039/c7tb00316a] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Halloysite (HNT) is a promising natural nanosized tubular clay mineral that has many important uses in different industrial fields.
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Affiliation(s)
- M. Massaro
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- Viale delle Scienze
- Parco d'Orleans II
| | - G. Lazzara
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Viale delle Scienze
- Parco d'Orleans II
- Ed. 17
| | - S. Milioto
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Viale delle Scienze
- Parco d'Orleans II
- Ed. 17
| | - R. Noto
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- Viale delle Scienze
- Parco d'Orleans II
| | - S. Riela
- Dipartimento STEBICEF
- Sez. Chimica
- Università degli Studi di Palermo
- Viale delle Scienze
- Parco d'Orleans II
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45
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Rizzo C, Arrigo R, D'Anna F, Di Blasi F, Dintcheva NT, Lazzara G, Parisi F, Riela S, Spinelli G, Massaro M. Hybrid supramolecular gels of Fmoc-F/halloysite nanotubes: systems for sustained release of camptothecin. J Mater Chem B 2017; 5:3217-3229. [DOI: 10.1039/c7tb00297a] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Novel supramolecular gel hybrids were prepared by self-assembly of Fmoc-l-phenylalanine in the presence of functionalized halloysite nanotubes and employed as carriers for the delivery of camptothecin molecules.
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46
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Measuring Antioxidant Activity in Bioorganic Samples by the Differential Oxygen Uptake Apparatus: Recent Advances. J CHEM-NY 2017. [DOI: 10.1155/2017/6369358] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The measure of O2 consumption during the inhibited autoxidation of an easily oxidizable substrate is one of the most reliable and predictive methods to assess antioxidant activity, especially for structure-activity relationship studies, for food and industrial applications. The differential oxygen uptake apparatus described herein represents a powerful and cost-effective way to obtain antioxidant activity from inhibited autoxidation studies. These experiments provide the rate constant and the stoichiometry of the reaction between antioxidants and peroxyl radicals (ROO∙), which are involved in the propagation of radical damage. We show the operation principles and the utility of this instrumentation in the bioorganic laboratory, with regard to the recent advances in this field, ranging from the study of natural antioxidants in biomimetic system, to the use of substrates generating hydroperoxyl radicals, and to the evaluation of novel nanoantioxidants.
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47
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Halloysite nanotubes loaded with peppermint essential oil as filler for functional biopolymer film. Carbohydr Polym 2016; 152:548-557. [DOI: 10.1016/j.carbpol.2016.07.041] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/28/2016] [Accepted: 07/11/2016] [Indexed: 12/20/2022]
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48
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Massaro M, Riela S, Baiamonte C, Blanco JLJ, Giordano C, Lo Meo P, Milioto S, Noto R, Parisi F, Pizzolanti G, Lazzara G. Dual drug-loaded halloysite hybrid-based glycocluster for sustained release of hydrophobic molecules. RSC Adv 2016. [DOI: 10.1039/c6ra14657k] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A dual drug-loaded HNT–CD glycocluster delivery system based on halloysite nanotubes and carbohydrate functionalized cyclodextrin for delivery of natural drugs was developed.
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