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Gomes DM, Meirelles LMA, Araujo PM, de Sousa RWR, Ferreira PMP, Gutierrez SJC, de Medeiros MDGF, Raffin FN. Improving Riparin-A Dissolution through a Laponite Based Nanohybrid. Pharmaceutics 2023; 15:2136. [PMID: 37631350 PMCID: PMC10458571 DOI: 10.3390/pharmaceutics15082136] [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: 06/13/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
(1) Background: Riparin-A presents several pharmacological activities already elucidated, such as antimicrobial modulator, antileishmania, anxiolytic, anti-inflammatory, antinociceptive, and antioxidant. Even with important bioactive effects, the applicability of Riparin-A is limited due to its low solubility in water, impairing its dissolution in biological fluids. Thus, the objective of this study was to develop a nanohybrid based on Riparin-A and Laponite to obtain a better dissolution profile and evaluate its cytotoxic potential. (2) Methods: The formation of a hybrid system was highlighted by X-ray powder diffraction, infrared spectroscopy, and thermal analysis. Solubility, dissolution, and cytotoxicity studies were performed; (3) Results: An increase in the solubility and aqueous dissolution rate of Riparin-A was observed in the presence of clay. Diffractometric analysis of the hybrid system suggests the amorphization of Riparin-A, and thermal analyses indicated attenuation of decomposition and melting of the Riparin-A after interaction with clay. Furthermore, the nanosystem did not exhibit cytotoxic activity on normal and tumorigenic lines. (4) Conclusions: These results are promising for the development of the Riparin-A/Laponite nanosystem for therapeutic purposes, suggesting an increase in the range of possible routes of administration and bioavailability of this bioactive compound.
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Affiliation(s)
- Duanne Mendes Gomes
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Lyghia Maria Araújo Meirelles
- Department of Pharmacy, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil
- Health and Quality of Life Research Laboratory (LAPESQV), University Center Santo Agostinho—UNIFSA, Teresina 64049-550, Piauí, Brazil
| | - Paulo Monteiro Araujo
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Rayran Walter Ramos de Sousa
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Paulo Michel Pinheiro Ferreira
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Stanley Juan Chavez Gutierrez
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | | | - Fernanda Nervo Raffin
- Post—Program on Development and Technological Innovation in Medications, Federal University of Rio Grande do Norte—UFRN, Natal 59012-570, Rio Grande do Norte, Brazil
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Giovannini G, Rossi RM, Boesel LF. Changes in Optical Properties upon Dye-Clay Interaction: Experimental Evaluation and Applications. NANOMATERIALS 2021; 11:nano11010197. [PMID: 33466754 PMCID: PMC7830015 DOI: 10.3390/nano11010197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 02/07/2023]
Abstract
The development of hybrid materials with unique optical properties has been a challenge for the creation of high-performance composites. The improved photophysical and photochemical properties observed when fluorophores interact with clay minerals, as well as the accessibility and easy handling of such natural materials, make these nanocomposites attractive for designing novel optical hybrid materials. Here, we present a method of promoting this interaction by conjugating dyes with chitosan. The fluorescent properties of conjugated dye–montmorillonite (MMT) hybrids were similar to those of free dye–MMT hybrids. Moreover, we analyzed the relationship between the changes in optical properties of the dye interacting with clay and its structure and defined the physical and chemical mechanisms that take place upon dye–MMT interactions leading to the optical changes. Conjugation to chitosan additionally ensures stable adsorption on clay nanoplatelets due to the strong electrostatic interaction between chitosan and clay. This work thus provides a method to facilitate the design of solid-state hybrid nanomaterials relevant for potential applications in bioimaging, sensing and optical purposes.
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Cheikh D, Martín-Sampedro R, Majdoub H, Darder M. Alginate bionanocomposite films containing sepiolite modified with polyphenols from myrtle berries extract. Int J Biol Macromol 2020; 165:2079-2088. [DOI: 10.1016/j.ijbiomac.2020.10.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/22/2020] [Accepted: 10/07/2020] [Indexed: 01/26/2023]
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Coelho Leandro G, Capello C, Luiza Koop B, Garcez J, Rodrigues Monteiro A, Ayala Valencia G. Adsorption-desorption of anthocyanins from jambolan (Syzygium cumini) fruit in laponite® platelets: Kinetic models, physicochemical characterization, and functional properties of biohybrids. Food Res Int 2020; 140:109903. [PMID: 33648205 DOI: 10.1016/j.foodres.2020.109903] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 10/30/2020] [Accepted: 11/07/2020] [Indexed: 01/09/2023]
Abstract
This study aims to develop and characterize biohybrids (BH) based on anthocyanins (ACNs) from jambolan (Syzygium cumini) and laponite® (Lap). ACNs from jambolan fruit were extracted using an acidified water solution at pH 1. ACNs were recovered from extract using Lap as adsorbent between 5 °C and 40 °C. There was no significant effect (p > 0.05) of the temperature on the adsorption process of ACNs. Thus, the process was classified as physical adsorption in heterogeneous sites where ACNs were stabilized by means of van der Waals force, π - π force, and hydrogen bonding on the Lap surface. After adsorption, the BH powder appeared to have an amorphous structure and red color. However, the color changed at pH ≥ 7. In addition, the obtained BH showed antioxidant properties and high stability when exposed to visible light irradiation. This research reports new information about the valorization and application of ACNs from jambolan for food industrial applications.
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Affiliation(s)
- Gabriel Coelho Leandro
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Cristiane Capello
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Betina Luiza Koop
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Jussara Garcez
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Alcilene Rodrigues Monteiro
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Germán Ayala Valencia
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil.
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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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Guimarães V, Lucas MS, Peres JA. Combination of adsorption and heterogeneous photo-Fenton processes for the treatment of winery wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:31000-31013. [PMID: 31452122 DOI: 10.1007/s11356-019-06207-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
The performance of both adsorption and heterogeneous photo-Fenton processes, combined for the first time for the treatment of a real winery wastewater (WW), was evaluated under different operational conditions. A Portuguese natural Ca-smectite (Ca-Sm) was applied in both processes, however, with different purposes: (1) as an adsorbent, which reveals great capacity to retain organic acids, and (2) as catalyst support for the production of an iron-based catalyst (Fe-Sm). Both Ca-Sm and Fe-Sm materials were characterized by XRD, FTIR, low temperature N2 adsorption isotherms, and SEM-EDX. The adsorption process was investigated under different experimental conditions, namely, different pH, adsorbent dosages, and different concentrations of the organic contaminant. The adsorption isotherm was successfully described by Jovanovich isothermal model (R2 = 0.990), which predicted a maximum adsorption capacity of 161 mg C/g. Regarding to the heterogeneous photo-Fenton process, the higher TOC removal percentage obtained (78.7% - 240 min) was achieved at pH 4.0, with a H2O2 concentration of 98 mM and a catalyst dosage (S:L, solid:liquid ratio) corresponding to 6.00 g/L (UV-C). As a result, the combination of both treatment processes, using the optimized conditions, allowed a total TOC removal of 90%, where the initial TOC0 (825 mg C/L) was reduced by 54%, through the adsorption process, and by 36% by means of heterogeneous photo-Fenton process [TOC0 = 825 mg C/L (1) - TOCf-ads = 380 mg C/L (2) - TOCf-pF = 81 mg C/L (3)].
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Affiliation(s)
- Vanessa Guimarães
- Centro de Química de Vila Real, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - Marco S Lucas
- Centro de Química de Vila Real, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - José A Peres
- Centro de Química de Vila Real, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
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Marzec A, Szadkowski B, Rogowski J, Maniukiewicz W, Rybiński P, Prochoń M. New Organic/Inorganic Pigments Based on Azo Dye and Aluminum-Magnesium Hydroxycarbonates with Various Mg/Al Ratios. MATERIALS 2019; 12:ma12081349. [PMID: 31027185 PMCID: PMC6515457 DOI: 10.3390/ma12081349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 01/19/2023]
Abstract
This study set out to investigate the impact of aluminum-magnesium hydroxycarbonates (LHs) with various Mg/Al ratios on the formation of hybrid pigments. The colorants were also evaluated for their flame-retardant properties. In the first part of the study, the hybrid pigments were submitted to comprehensive characterization using time-of-flight secondary ion mass spectrometry (TOF-SIMS), 27Al solid-state nuclear magnetic resonance (NMR) spectroscopy, powder X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA), and N2 adsorption as well as scanning and transmission electron microscopy (SEM/STEM). The relationship between the Mg/Al ratios of the LH carriers and the formation of lake pigments was explored. The TOF-SIMS spectrum of LH modified with azo chromophore (AC) showed an intense peak for the C19H15O5N2Mg+ ion, confirming metal-dye interactions. Incorporation of the organic colorant into the LH host enhanced its resistance to dissolution in organic solvent (butyl acetate), as well as improving its color stability under elevated temperatures. The second part of the study evaluated the flammability of ethylene-norbornene (EN) composites, in which the pigments had been applied as colorants. Cone calorimetry revealed that addition of the organic-inorganic pigments resulted in a substantial improvement of the flame retardancy, reflected by the decreased values of the heat release rate (HRRMAX) and total heat release parameter (THR) of the EN composites in comparison to a neat sample (unfilled EN).
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Affiliation(s)
- Anna Marzec
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland.
| | - Bolesław Szadkowski
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland.
| | - Jacek Rogowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Waldemar Maniukiewicz
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
| | - Przemysław Rybiński
- Department of Management and Environmental Protection, Jan Kochanowski University, Zeromskiego 5, 25-369 Kielce, Poland.
| | - Mirosława Prochoń
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland.
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Ribeiro HL, Oliveira AVD, Brito ESD, Ribeiro PR, Souza Filho MDSM, Azeredo HM. Stabilizing effect of montmorillonite on acerola juice anthocyanins. Food Chem 2018; 245:966-973. [DOI: 10.1016/j.foodchem.2017.11.076] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 12/30/2022]
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Silva VO, Freitas AA, Maçanita AL, Quina FH. Chemistry and photochemistry of natural plant pigments: the anthocyanins. J PHYS ORG CHEM 2016. [DOI: 10.1002/poc.3534] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Volnir O. Silva
- Instituto de Química; Universidade de São Paulo; São Paulo CP 26077, 05513-970 Brazil
| | - Adilson A. Freitas
- Centro de Química Estrutural, Instituto Superior Técnico; Universidade de Lisboa; Lisbon Portugal
| | - António L. Maçanita
- Centro de Química Estrutural, Instituto Superior Técnico; Universidade de Lisboa; Lisbon Portugal
| | - Frank H. Quina
- Instituto de Química; Universidade de São Paulo; São Paulo CP 26077, 05513-970 Brazil
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