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Effect of Organomontmorillonite-Cloisite ® 20A Incorporation on the Structural and Drug Release Properties of Ureasil-PEO Hybrid. Pharmaceutics 2022; 15:pharmaceutics15010033. [PMID: 36678662 PMCID: PMC9866471 DOI: 10.3390/pharmaceutics15010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
This paper presents the influence of the presence of a modified organoclay, Cloisite® 20A (MMTA) on the structural and drug release properties of ureasil organic-inorganic hybrid. Sol-gel process was used to prepare the hybrid nanocomposites containing sodium diclofenac (DCF) at 5% wt. The effect of the amount of MMTA incorporated into the ureasil hybrid matrix was evaluated and characterized in depth by different techniques such as X-ray diffraction (XRD), small angle X-ray scattering (SAXS), differential scanning calorimetry (DSC), and swelling properties. The influence of MMTA on ureasil nanocomposites release profile was evaluated by in situ UV-vis. The diffraction patterns of the UPEO-MMTA nanocomposites showed a synergistic contribution effect that led to an intensity increase and narrowed the diffraction peaks, evidencing a crystallite PEO growth as a function of the modified nanoclay content. The interactions between polyether chains and the hydrogenated tallow of MMTA led to an easy intercalation process, as observed in UPEO-MMTA nanocomposites containing low (1% wt) or high (20% wt) nanoclay content. The waterway (channels) created in UPEO-MMTA nanocomposites contributed to a free volume increase in the swollen network compared to UPEO without MMTA. The hypothesis of the channels created after intercalation of the PEO phase in the interlayer of MMTA containing organoammonium ions corroborates with the XRD results, swelling studies by SAXS, and release assays. Furthermore, when these clay particles were dispersed in the polymeric matrix by an intercalation process, water uptake improvement was observed, with an increased amount of DCF release. The design of ureasil-MMTA nanocomposites containing modified nanoclay endows them with tunable properties; for example, swelling degree followed by amount of controlled drug release, opening the way for more versatile biomedical applications.
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Resende MA, Pedroza GA, Macêdo LHGMC, Oliveira R, Amela‐Cortes M, Molard Y, Molina EF. Design of polyurea networks containing anticancer and anti‐inflammatory drugs for dual drug delivery purposes. J Appl Polym Sci 2022. [DOI: 10.1002/app.51970] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | - Ricardo Oliveira
- Department of Chemistry Universidade de Franca Franca São Paulo Brazil
| | - Maria Amela‐Cortes
- CNRS, ISCR ‐ UMR 6226, ScanMAT ‐ UMS 2001 Université Rennes Rennes France
| | - Yann Molard
- CNRS, ISCR ‐ UMR 6226, ScanMAT ‐ UMS 2001 Université Rennes Rennes France
| | - Eduardo F. Molina
- Department of Chemistry Universidade de Franca Franca São Paulo Brazil
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Palácio G, Pulcinelli SH, Santilli CV. Fingerprint of semi-crystalline structure memory in the thermal and ionic conduction properties of amorphous ureasil-polyether hybrid solid electrolytes. RSC Adv 2022; 12:5225-5235. [PMID: 35425554 PMCID: PMC8981479 DOI: 10.1039/d1ra09138g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/04/2022] [Indexed: 11/21/2022] Open
Abstract
Correlations among the structure, thermal properties, and ionic conductivity of solid polymer electrolytes (SPEs) were studied using a ureasil-polyethylene oxide (U-PEO) organic-inorganic hybrid prepared according to a simple sol-gel route, employing a low molecular weight PEO macromer (M w = 1900 g mol-1). The behavior of an amorphous sample loaded with lithium triflate (LiTFSI) at an optimum ratio between ether oxygen and lithium (EO/Li+ = 15) was compared with that of a semicrystalline sample prepared without salt loading. The temperature range investigated by differential scanning calorimetry (DSC), Raman spectroscopy, small angle X-ray scattering (SAXS), and complex impedance spectroscopy covered both the glass transition and the melting temperature of the U-PEO. The gauche to trans conformational transformation of the (O-C-C-O)Li+ sequence showed similarity between the temperature evolution of the semi-crystalline U-PEO and amorphous U-PEO:Li+ samples, providing an indication of the local structural memory of crystalline state in the amorphous SPE. The linear thermal expansion of the average correlation distance between the siloxane crosslink nodes and the long-distance period of the lamellar semi-crystalline edifice were determined by SAXS. Comparison of the expansion curves suggested that although the siloxane nodes were excluded from the PEO crystalline edifice, the sharp expansion of the amorphous region between the lamellae during melting permitted modulation of the free volume of the hybrid network. In addition, the temperature-induced Li+-EO decomplexation observed by Raman spectroscopy explained the change of the average activation energy of the conduction process revealed by the different Arrhenius regimes. These results evidence the key role of the ionic conductivity decoupling from the segmental motion of chain pair channels on the improvement of ion mobility through the free volume between chains. This concept may inspire materials chemistry researchers to design optimized structures of polymer electrolytes with minimized structural memory of crystaline building blocks and improved ionic conductivity.
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Affiliation(s)
- Gustavo Palácio
- Chemistry Institute of the São Paulo State University, UNESP 14800-060 Araraquara São Paulo Brazil
| | - Sandra H Pulcinelli
- Chemistry Institute of the São Paulo State University, UNESP 14800-060 Araraquara São Paulo Brazil
| | - Celso V Santilli
- Chemistry Institute of the São Paulo State University, UNESP 14800-060 Araraquara São Paulo Brazil
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Medeiros Salviano Santos MK, Sousa MH, Chaker JA. Drug dual-release matrix proprieties and the correlations with nanostructure aggregation kinetics for siloxane-polyether/hydrogel nanocomposites. RSC Adv 2021; 11:3863-3869. [PMID: 35424348 PMCID: PMC8694224 DOI: 10.1039/d0ra08270h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 01/05/2021] [Indexed: 11/21/2022] Open
Abstract
The influence of hydrogels on the nanostructural formation of siloxane-polyether nanocomposites was examined. The nanostructure was studied with small-angle X-ray scattering (SAXS) to determine the siloxane nanostructure aggregation mechanisms. The interactions between matrix and drug were examined by infrared spectroscopy to verify the compatibility of the drug with the matrix. For in vitro release tests Piroxicam was used as a model molecule. The variation of the different types of hydrogels, bis-acrylamide (BIS), poly(acrylamide-co-acrylic acid) (PAM) and polyvinylpyrrolidone (PVP) can modify the drug release profiles. The release behaviour was determined to be composed of two concomitant release mechanisms. The first is in the early stages of drug release, governed by erosion, diffusion and swelling and the second, in advanced stages of release, typical of diffusion through pores. These dependencies were found to be correlated to the physical and chemical properties of the nanocomposites, including the interactions disturbing polycondensation formation. The release rate depends on intramolecular matrix-matrix and intermolecular drug-matrix interactions, as well as a crystalline state of the matrix.
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Affiliation(s)
- Mac-Kedson Medeiros Salviano Santos
- Institute of Biological Sciences, University of Brasilia Brasilia Brazil
- Faculty of Ceilandia, University of Brasilia Brasilia Brazil
- Centro Universitário Unieuro Brasília DF Brazil
| | - Marcelo Henrique Sousa
- Institute of Biological Sciences, University of Brasilia Brasilia Brazil
- Faculty of Ceilandia, University of Brasilia Brasilia Brazil
| | - Juliano Alexandre Chaker
- Institute of Biological Sciences, University of Brasilia Brasilia Brazil
- Faculty of Ceilandia, University of Brasilia Brasilia Brazil
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de Jesus NAM, de Oliveira R, Amela-Cortes M, Dumait N, Cordier S, Molard Y, Molina EF. Facile and scalable design of light-emitting and ROS-generating hybrid materials made of polyurea gels embedding a molybdenum cluster-based salt. Dalton Trans 2021; 50:8907-8916. [PMID: 34105549 DOI: 10.1039/d1dt00962a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we demonstrate a facile and scalable preparation via sol-gel chemistry of hybrid polyurea gels containing various amounts of a phosphorescent inorganic octahedral molybdenum cluster-based ternary salt, namely Cs2Mo6Br14. The influence of the Cs2Mo6Br14 content (1-10 wt%) on the polyurea matrix and its physical properties are studied in depth by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and X-ray fluorescence microanalysis (μ-XRF). Regardless of the amount of cluster loaded into the polyurea, the integrity of these species was preserved and their dispersion is homogeneous as shown by μ-XRF mapping. Spectroscopic-structural analyses reveal a significant increase of the chain mobility (glass transition temperature Tg) from -65 °C to -55 °C after the incorporation of Cs2Mo6Br14 (DSC analyses). The FTIR studies show that the homogeneity of the dispersion is ensured by supramolecular interactions between the ether-type oxygen atoms of the PEO chains and the cluster compound. Photoluminescence studies show that the metal cluster emission properties are well retained within the host matrix whatever the loaded content. Such a combination of materials demonstrates the feasibility to fabricate a rubber NIR-emitting device. Moreover, the loaded polyurea is also able to produce reactive oxygen species (ROS) upon irradiation in the UV-A region, opening new perspectives as versatile membranes in the field of photodynamic therapy.
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Affiliation(s)
- Natana A M de Jesus
- Universidade de Franca, Av. Dr Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil.
| | - Ricardo de Oliveira
- Universidade de Franca, Av. Dr Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil.
| | - Maria Amela-Cortes
- Univ Rennes, CNRS, ISCR - UMR 6226, ScanMAT - UMS 2001, F-35000 Rennes, France.
| | - Noée Dumait
- Univ Rennes, CNRS, ISCR - UMR 6226, ScanMAT - UMS 2001, F-35000 Rennes, France.
| | - Stéphane Cordier
- Univ Rennes, CNRS, ISCR - UMR 6226, ScanMAT - UMS 2001, F-35000 Rennes, France.
| | - Yann Molard
- Univ Rennes, CNRS, ISCR - UMR 6226, ScanMAT - UMS 2001, F-35000 Rennes, France.
| | - Eduardo F Molina
- Universidade de Franca, Av. Dr Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil.
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Misturini A, Heinzelmann G, Parreira RLT, Molina EF, Caramori GF. Probing the potential of ureasil-poly(ethylene oxide) as a glyphosate scavenger in aqueous milieu: force-field parameterization and MD simulations. NEW J CHEM 2021. [DOI: 10.1039/d1nj01145f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intensive use of glyphosate in conventional agriculture and its high solubility in water have led to contamination of aqueous systems worldwide.
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Affiliation(s)
- Alechania Misturini
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil
- Universitat Politècnica de València, Instituto de Tecnología Química, Avenida de los Naranjos, s/n Valencia, Valencia, ES 46022, Spain
| | - Germano Heinzelmann
- Departamento de Física, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil
| | - Renato L. T. Parreira
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, 14404-600, Brazil
| | - Eduardo F. Molina
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, 14404-600, Brazil
| | - Giovanni F. Caramori
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil
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Zhao W, Yi J, He P, Zhou H. Solid-State Electrolytes for Lithium-Ion Batteries: Fundamentals, Challenges and Perspectives. ELECTROCHEM ENERGY R 2019. [DOI: 10.1007/s41918-019-00048-0] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Caravieri BB, de Jesus NAM, de Oliveira LK, Araujo MD, Andrade GP, Molina EF. Ureasil Organic–Inorganic Hybrid as a Potential Carrier for Combined Delivery of Anti-Inflammatory and Anticancer Drugs. ACS APPLIED BIO MATERIALS 2019; 2:1875-1883. [DOI: 10.1021/acsabm.8b00798] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Beatriz B. Caravieri
- Universidade de Franca, Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil
| | - Natana A. M. de Jesus
- Universidade de Franca, Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil
| | - Lilian K. de Oliveira
- UEMG − Universidade do Estado de Minas Gerais, Unidade de Passos, Av. Juca Stockler 1130, Passos, MG, Brazil
| | - Marina D. Araujo
- Universidade de Franca, Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil
| | - Gabriele P. Andrade
- Universidade de Franca, Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil
| | - Eduardo F. Molina
- Universidade de Franca, Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca, SP, Brazil
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Palácio G, Pulcinelli SH, Mahiou R, Boyer D, Chadeyron G, Santilli CV. Coupling Photoluminescence and Ionic Conduction Properties Using the Different Coordination Sites of Ureasil-Polyether Hybrid Materials. ACS APPLIED MATERIALS & INTERFACES 2018; 10:37364-37373. [PMID: 30346685 DOI: 10.1021/acsami.8b11149] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this article, we demonstrate that each functional group of ureasil organic-inorganic hybrid (OIH) materials can act as a specific coordination site for a given active guest species, hence allowing the possibility of combining different functional properties. To illustrate this concept, the sol-gel process was used to produce diurea cross-linked siloxane-polyethylene oxide (U-PEO) and siloxane-polypropylene oxide (U-PPO) hybrid host frameworks with similar molecular weights (1900 and 2000 g mol-1 for PEO and PPO, respectively), with Li+ and Eu3+ as active guest ions providing ionic conduction and photoluminescence (PL) properties, respectively. Comparison of Fourier transform infrared spectra and small-angle X-ray scattering results for single-doped (using Li+ or Eu3+) and co-doped (using Li+ and Eu3+) U-PEO and U-PPO hosts showed that in every case, there was specific coordination of Eu3+ by the carbonyl group of the urea bridge and of Li+ by ether-type oxygen of the PEO and PPO chains. Optical analyses demonstrated that loading with Li+ did not affect the luminescence properties of the Eu3+-loaded OIH. Although loading with Eu3+ had a small effect on ionic transport, co-doping with Li+ ions ensured macroscopic ion-conduction of the transparent and luminescent hybrid material. The results suggested that the combination of both properties in a transparent elastomeric material could be useful for the development of multifunctional devices. The results suggested that the combination of both properties in a transparent elastomeric material could be useful for the development of multifunctional polyelectrolytes applied in the field of dual luminescent devices such as photoelectrochromic smart windows.
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Affiliation(s)
- Gustavo Palácio
- Chemistry Institute of the São Paulo State University - UNESP , 14800-060 Araraquara , São Paulo , Brazil
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand , F-63000 Clermont-Ferrand , France
| | - Sandra H Pulcinelli
- Chemistry Institute of the São Paulo State University - UNESP , 14800-060 Araraquara , São Paulo , Brazil
| | - Rachid Mahiou
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand , F-63000 Clermont-Ferrand , France
| | - Damien Boyer
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand , F-63000 Clermont-Ferrand , France
| | - Geneviève Chadeyron
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand , F-63000 Clermont-Ferrand , France
| | - Celso V Santilli
- Chemistry Institute of the São Paulo State University - UNESP , 14800-060 Araraquara , São Paulo , Brazil
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Jesus CRN, Molina EF, Pulcinelli SH, Santilli CV. Highly Controlled Diffusion Drug Release from Ureasil-Poly(ethylene oxide)-Na +-Montmorillonite Hybrid Hydrogel Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19059-19068. [PMID: 29749723 DOI: 10.1021/acsami.8b04559] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, we report the effects of incorporation of variable amounts (1-20 wt %) of sodium montmorillonite (MMT) into a siloxane-poly(ethylene oxide) hybrid hydrogel prepared by the sol-gel route. The aim was to control the nanostructural features of the nanocomposite, improve the release profile of the sodium diclofenac (SDCF) drug, and optimize the swelling behavior of the hydrophilic matrix. The nanoscopic characteristics of the siloxane-cross-linked poly(ethylene oxide) network, the semicrystallinity of the hybrid, and the intercalated or exfoliated structure of the clay were investigated by X-ray diffraction, small-angle X-ray scattering, and differential scanning calorimetry. The correlation between the nanoscopic features of nanocomposites containing different amounts of MMT and the swelling behavior revealed the key role of exfoliated silicate in controlling the water uptake by means of a flow barrier effect. The release of the drug from the nanocomposite displayed a stepped pattern kinetically controlled by the diffusion of SDCF molecules through the mass transport barrier created by the exfoliated silicate. The sustained SDCF release provided by the hybrid hydrogel nanocomposite could be useful for the prolonged treatment of painful conditions, such as arthritis, sprains and strains, gout, migraine, and pain after surgical procedures.
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Affiliation(s)
- Celso R N Jesus
- Instituto de Química, UNESP , Rua Professor Francisco Degni 55 , Araraquara , São Paulo 14800-900 , Brazil
| | - Eduardo F Molina
- Universidade de Franca , Av. Dr. Armando Salles Oliveira 201 , Franca , São Paulo 14404-600 , Brazil
| | - Sandra H Pulcinelli
- Instituto de Química, UNESP , Rua Professor Francisco Degni 55 , Araraquara , São Paulo 14800-900 , Brazil
| | - Celso V Santilli
- Instituto de Química, UNESP , Rua Professor Francisco Degni 55 , Araraquara , São Paulo 14800-900 , Brazil
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Truffault L, Rodrigues DF, Salgado HRN, Santilli CV, Pulcinelli SH. Loaded Ce-Ag organic-inorganic hybrids and their antibacterial activity. Colloids Surf B Biointerfaces 2016; 147:151-160. [PMID: 27500358 DOI: 10.1016/j.colsurfb.2016.07.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 06/28/2016] [Accepted: 07/28/2016] [Indexed: 11/30/2022]
Abstract
There are requirements for surfaces with antibacterial properties in various technological fields. U-PEO hybrids with antibacterial properties were synthesized by the sol-gel process, incorporating combinations of cerium and silver salts at different silver molar fractions (0, 0.02, 0.05, 0.10, and 1) relative to the total amount of doped cations. The loaded hybrids were characterized by TGA, XRD, and Raman spectroscopy. Release tests were performed using UV-vis spectroscopy, and the antibacterial properties of the hybrids were studied in agar tests and turbidimetry assays. The nanostructural evolution of the hybrids during the release of the antibacterial agents was investigated by in situ SAXS. XRD results showed the presence of the AgCl crystalline phase in the loaded hybrids from a silver molar fraction of 0.05. Raman spectroscopy evidenced the interaction of silver cations with the polymeric part of the hybrid. SAXS results confirmed these interactions and showed that cerium species interacted with both organic and inorganic parts of the hybrids. The loaded U-PEO hybrids were found to release all the incorporated cerium in 1h, while the hybrid containing 100% of silver released only 78% of the incorporated silver. All the loaded hybrids displayed antibacterial activity against the Pseudomonas aeruginosa bacterium. The antibacterial activity was found to increase with silver molar fraction. Due to its high antibacterial activity and low silver molar fraction, the loaded hybrid with silver molar fraction of 0.10 seemed to be a good compromise between efficiency, esthetic transparency, and photostability.
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Affiliation(s)
- Laurianne Truffault
- Institute of Chemistry, Physico-Chemistry Department, University of São Paulo State, Rua Prof. Francisco Degni n(o) 55, PO Box 335, Quitandinha, 14800-900 Araraquara, SP, Brazil.
| | - Danilo Fernando Rodrigues
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, University of São Paulo State, Rodovia Araraquara, Jaú km 1, 14801-902 Araraquara, SP, Brazil
| | - Hérida Regida Nunes Salgado
- School of Pharmaceutical Sciences, Department of Drugs and Medicines, University of São Paulo State, Rodovia Araraquara, Jaú km 1, 14801-902 Araraquara, SP, Brazil
| | - Celso Valentim Santilli
- Institute of Chemistry, Physico-Chemistry Department, University of São Paulo State, Rua Prof. Francisco Degni n(o) 55, PO Box 335, Quitandinha, 14800-900 Araraquara, SP, Brazil
| | - Sandra Helena Pulcinelli
- Institute of Chemistry, Physico-Chemistry Department, University of São Paulo State, Rua Prof. Francisco Degni n(o) 55, PO Box 335, Quitandinha, 14800-900 Araraquara, SP, Brazil
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Molina EF, Parreira RLT, De Faria EH, de Carvalho HWP, Caramori GF, Coimbra DF, Nassar EJ, Ciuffi KJ. Ureasil-poly(ethylene oxide) hybrid matrix for selective adsorption and separation of dyes from water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3857-3868. [PMID: 24625117 DOI: 10.1021/la404812e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Herein, we present a cross-linked ureasil-polyether-siloxane hybrid (labeled PEO500) that can function as a stimuli-sensitive material; it swells or shrinks in response to changes in the environmental conditions and it can also, effectively and selectively, remove dyes from water solution. We also developed a methodology to separate a mixture of cationic and anionic dyes present in water. Addition of PEO500 to an aqueous solution of the anionic orange II (OII) or the ponceau S (PS) dye rendered the solution colorless, but an aqueous solution of cationic methylene blue (MB) remained unchanged after 2 h of contact with the insoluble matrix. In situ small-angle X-ray scattering (SAXS) showed that the distance of siloxane nanodomains are strongly affected by the swelling or shriking. By in situ UV-vis adsorption experiments, we found that the kinetics of OII and PS removal followed a pseudo-first-order rate equation. We accomplished B3LYP calculations, to establish which sites on the matrix interacted with the dyes and to investigate the nature of the matrix-dye chemical bonds. On the basis of the experimental and theoretical investigations, we proposed some mechanisms to explain how PEO500 adsorbs anionic dyes efficiently. This "smart" matrix is potentially applicable as an efficient, fast, selective, and convenient device in water treatment and stimuli-sensitive response materials.
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Affiliation(s)
- Eduardo F Molina
- Universidade de Franca , Av. Dr. Armando Salles Oliveira 201, 14404-600 Franca-SP, Brazil
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Arzoumanian E, Ronzani F, Trivella A, Oliveros E, Sarakha M, Richard C, Blanc S, Pigot T, Lacombe S. Transparent organosilica photocatalysts activated by visible light: photophysical and oxidative properties at the gas-solid interface. ACS APPLIED MATERIALS & INTERFACES 2014; 6:275-288. [PMID: 24304089 DOI: 10.1021/am404175y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The photophysical properties of several photosensitizers (PSs) included or grafted in silica monoliths were compared to their properties in solution. The effects of the solid support on their steady-state and transient absorption spectra, on their quantum yields of singlet oxygen ((1)O2) production, and on their ability to photoinduce the oxidation of dimethylsulfide (DMS) were investigated. Two cyanoanthracene derivatives (9,14-dicyanobenzo[b]triphenylene, DBTP, and 9,10-dicyanoanthracene, DCA), as well as three phenothiazine dyes (methylene blue, MB(+), new methylene blue, NMB(+), methylene violet, MV), were encapsulated in silica, analyzed and compared to two reference PSs (perinaphthenone, PN and rose bengal, RB). A DBTP derivative (3-[N-(N″-triethoxysilylpropyl-N'-hexylurea)]carboxamido-9,14-dicyanobenzo[b]triphenylene, 3) was also prepared and grafted onto silica. Thanks to the transparency and the free-standing shape of the monoliths, the complete spectroscopic characterization of the supported PSs was carried out directly at the gas-solid interface. The influence of the silica network, the PS, and the adsorption/grafting link between the PS and silica was investigated. The effects of PS concentration, gaseous atmosphere, humidity, and hydrophobicity on the production of (1)O2 were analyzed. With all PSs, (1)O2 production was very efficient (quantum yields of (1)O2 production, relative to PN, between 0.6 and 1), and this species was the only one involved in the pollutant photooxidation. The influence of the matrix on the PSs' photophysics could be considered as negligible. In contrast, the matrix effect on DMS photooxidation was extremely important: the gas diffusion inside the porous structure, and thus, the photoactivity of the materials, strictly depended on silica's surface area and porosity. Our results highlight the suitability of these silica structures as inert supports for the study of the photosensitizing properties at the gas-solid interface. Moreover, thanks to the adsorption properties of the matrix, the synthesized materials can be used as microphotoreactor for the (1)O2-mediated oxidation of volatile pollutants.
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Affiliation(s)
- Emmanuel Arzoumanian
- Laboratoire des IMRCP, UMR CNRS 5623, Université Toulouse III (Paul Sabatier, UPS) , 118 route de Narbonne F-31062 Toulouse Cedex 9, France
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Molina EF, Pulcinelli SH, Briois V, Santilli CV. Fine-tuning of a nanostructure, swelling, and drug delivery profile by blending ureasil–PEO and ureasil–PPO hybrids. Polym Chem 2014. [DOI: 10.1039/c3py01126g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Molina EF, Marçal L, Pereira de Carvalho HW, Nassar EJ, Ciuffi KJ. Tri-ureasil gel as a multifunctional organic–inorganic hybrid matrix. Polym Chem 2013. [DOI: 10.1039/c2py21049e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Molina EF, Pulcinelli SH, Santilli CV, Briois V. Ligand Exchange Inducing Efficient Incorporation of CisPt Derivatives into Ureasil–PPO Hybrid and Their Interactions with the Multifunctional Hybrid Network. J Phys Chem B 2012; 116:7931-9. [DOI: 10.1021/jp302606b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eduardo F. Molina
- Instituto
de Química, UNESP, Rua Professor
Francisco Degni, 55, 14800-900
Araraquara, SP, Brazil
- Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192
Gif-sur Yvette, France
| | - Sandra H. Pulcinelli
- Instituto
de Química, UNESP, Rua Professor
Francisco Degni, 55, 14800-900
Araraquara, SP, Brazil
| | - Celso V. Santilli
- Instituto
de Química, UNESP, Rua Professor
Francisco Degni, 55, 14800-900
Araraquara, SP, Brazil
| | - Valérie Briois
- Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192
Gif-sur Yvette, France
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Lopes L, Molina EF, Chiavacci LA, Santilli CV, Briois V, Pulcinelli SH. Drug–matrix interaction of sodium diclofenac incorporated into ureasil–poly(ethylene oxide) hybrid materials. RSC Adv 2012. [DOI: 10.1039/c2ra01216b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Zhao Y, Yan B. Photoluminescent Properties of Novel Rare Earth Organic-Inorganic Nanocomposite with TiO2 Modified Silica via Double Crosslinking Units. Photochem Photobiol 2011; 88:21-31. [DOI: 10.1111/j.1751-1097.2011.01033.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Yan B, Kai Q, Wang XL. Photofunctional Eu3+/Tb3+ hybrid material with inorganic silica covalently linking polymer chain through their double functionalization. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yan B, Wang XL, Liu JL. Photophysical Properties of Ternary Hybrid System of Lanthanide Center Linking Organically Modified Silica and Polymeric Chain. Photochem Photobiol 2011; 87:602-10. [DOI: 10.1111/j.1751-1097.2011.00891.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yan B, Wang XL, Qian K, Lu HF. Coordination bonding assembly, characterization and photophysical properties of lanthanide (Eu, Tb)/zinc centered hybrid materials through sulfide bridge. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Molina EF, Pulcinelli SH, Santilli CV, Blanchandin S, Briois V. Controlled Cisplatin Delivery from Ureasil−PEO1900 Hybrid Matrix. J Phys Chem B 2010; 114:3461-6. [DOI: 10.1021/jp9097638] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eduardo F. Molina
- Instituto de Química, UNESP, Rua Professor Francisco Degni, s/n°, 14800-900 Araraquara, SP, Brazil, and Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France
| | - Sandra H. Pulcinelli
- Instituto de Química, UNESP, Rua Professor Francisco Degni, s/n°, 14800-900 Araraquara, SP, Brazil, and Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France
| | - Celso V. Santilli
- Instituto de Química, UNESP, Rua Professor Francisco Degni, s/n°, 14800-900 Araraquara, SP, Brazil, and Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France
| | - Stéphanie Blanchandin
- Instituto de Química, UNESP, Rua Professor Francisco Degni, s/n°, 14800-900 Araraquara, SP, Brazil, and Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France
| | - Valérie Briois
- Instituto de Química, UNESP, Rua Professor Francisco Degni, s/n°, 14800-900 Araraquara, SP, Brazil, and Synchrotron SOLEIL L’Orme des Merisiers, BP48, Saint Aubin, 91192 Gif-sur Yvette, France
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Gulino A, Lupo F, Condorelli GG, Motta A, Fragalà IL. Tunable luminescent properties of a europium complex monolayer. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b901552c] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu JL, Yan B. Lanthanide (Eu3+, Tb3+) centered hybrid materials using modified functional bridge chemical bonded with silica: molecular design, physical characterization, and photophysical properties. J Phys Chem B 2008; 112:10898-907. [PMID: 18698700 DOI: 10.1021/jp803915g] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1,3-Bis(2-formylphenoxy)-2-propanol (BFPP) was first synthesized and then grafted to 3-(triethoxysilyl)propyl isocyanate (TESPIC) to achieve a molecular precursor BFPP-Si through the hydrogen-transfer nucleophilic addition reaction between the hydroxyl group of BFPP and the isocyanate group of TESPIC. Then, a chemically bonded lanthanide/inorganic/organic hybrid material (BFPP-Si-Ln) was constructed using BFPP-Si as a bridge molecule that can both coordinate to lanthanide ions (Eu3+ or Tb3+) and form an inorganic Si-O network with tetraethoxysilane (TEOS) after cohydrolysis and copolycondensation processes. Furthermore, two types of ternary rare-earth/inorganic/organic hybrids (BFPP-Si-Dipy-Ln and BFPP-Si-Phen-Ln) were assembled by the introduction of the second ligands (4,4'-bipyridyl and 1,10-phenanthroline) into the above system. All of these hybrid materials exhibit homogeneous microstructures and morphologies, suggesting the occurrence of self-assembly of the inorganic network and organic chain. Measurements of the photoluminescent properties of these materials show that the ternary rare-earth/inorganic/organic hybrids present stronger luminescent intensities, longer lifetimes, and higher luminescent quantum efficiencies than the binary hybrids, indicating that the introduction of the second ligands can sensitize the luminescence emission of the lanthanide ions in the ternary hybrid systems.
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Affiliation(s)
- J L Liu
- Department of Chemistry, Tongji University, Siping Road 1239 Shanghai 200092, PR China
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Anisotropic self-organization of hybrid silica based xerogels containing bridged positively charged 1,4-diazoniabicycle[2.2.2]octane chloride group. J Colloid Interface Sci 2008; 318:96-102. [DOI: 10.1016/j.jcis.2007.09.073] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2007] [Revised: 08/28/2007] [Accepted: 09/26/2007] [Indexed: 11/17/2022]
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