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Adam AA, Michaux F, Dos Santos Morais R, Seiler A, Muniglia L, Khanji AN, Jasniewski J. Determination of the critical aggregation concentration in water of Gum Arabic functionalized with curcumin oxidation products by micro-scale thermophoresis approach. Int J Biol Macromol 2024; 271:132510. [PMID: 38821797 DOI: 10.1016/j.ijbiomac.2024.132510] [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: 02/13/2024] [Revised: 05/07/2024] [Accepted: 05/17/2024] [Indexed: 06/02/2024]
Abstract
Gum Arabic underwent enzymatic modification with curcumin oxidation products, prompting self-assembly in water at lower concentrations than native gum Arabic, which was fully soluble. The resulting particles displayed a narrow size distribution, suggestive of a micellization mechanism akin to Critical Micellization Concentration (CMC) in surfactants or Critical Aggregation Concentration (CAC) in polymers. Accurately determining CAC is vital for utilizing polymers in molecule encapsulation, but precise measurement is challenging, requiring multiple techniques. Initially, CAC was probed via turbidity measurements, dynamic light scattering (DLS), and isothermal calorimetric titration (ITC), yielding a range of 0.0015 to 0.01 %. Micro-scale thermophoresis (MST) was then employed for the first time to define CAC more precisely, facilitated by the intrinsic fluorescence of modified gum Arabic. Using MST, CAC was pinpointed at 0.001 % (w/v), a novel approach. Furthermore, MST revealed a low EC50 value of 0.007 % (w/t) for self-assembly, signifying uniformity among GAC sub-units and assembly stability upon dilution.
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Affiliation(s)
| | | | | | | | | | - Aya N Khanji
- Université de Lorraine, LIBio, F-54000 Nancy, France
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2
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Dellali M, Zanoune K, Hamcerencu M, Logigan CL, Popa M, Mahmoudi H. Superparamagnetic Hybrid Nanospheres Based on Chitosan Obtained by Double Crosslinking in a Reverse Emulsion for Cancer Treatment. Polymers (Basel) 2023; 15:4493. [PMID: 38231926 PMCID: PMC10708392 DOI: 10.3390/polym15234493] [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: 09/28/2023] [Revised: 10/24/2023] [Accepted: 11/16/2023] [Indexed: 01/19/2024] Open
Abstract
Nowadays, the Magnetically Targeted Drug Delivery System (MTDDS) is among the most attractive and promising strategies for delivering drugs to the target site. The present study aimed to obtain a biopolymer-magnetite-drug nanosystem via a double crosslinking (ionic and covalent) technique in reverse emulsion, which ensures the mechanical stability of the polymer support in the form of original hybrid nanospheres (NSMs) loaded with biologically active principles (the 5-Fluorouracil (5-FU)) as a potential treatment for cancer. Obtained NSMs were characterized in terms of structure (FT-IR), size (DLS), morphology (SEM), swelling, and 5-FU entrapment/release properties, which were dependent on the synthesis parameters (polymer concentration, dispersion speed, and amount of ionic crosslinking agent). SEM analysis results revealed that NSMs presented a spherical shape and are homogeneous and separated. Moreover, NSMs' ability to load/release 5-FU was tested in vitro, the results confirming, as expected, their dependence on the varied synthesis process and NSM swelling ability in physiological liquids. The drug transport mechanism through the polymer matrix of its release is the Fickian type. The morphological, bio-material characteristics and the ability to include and release an antitumor drug highlight the utility of the NSMs obtained for targeting and treating some tumor diseases.
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Affiliation(s)
- Mohammed Dellali
- Faculty of Technology, University Hassiba Benbouali of Chlef, Chlef BP 151 02000, Algeria; (M.D.); (K.Z.); (H.M.)
- Laboratory of Natural Bio-Resources, University Hassiba Benbouali of Chlef, Chlef BP 151 02000, Algeria
| | - Kheira Zanoune
- Faculty of Technology, University Hassiba Benbouali of Chlef, Chlef BP 151 02000, Algeria; (M.D.); (K.Z.); (H.M.)
- Laboratory of Natural Bio-Resources, University Hassiba Benbouali of Chlef, Chlef BP 151 02000, Algeria
| | - Mihaela Hamcerencu
- CQFD Composites, Village Industriel de la Fonderie, François Spoerry Street, No. 65, 68100 Mulhouse, France;
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Bld. Prof. Dr. Doc. Dimitrie Mangeron Street, No. 73, 700050 Iasi, Romania
| | - Corina-Lenuța Logigan
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Bld. Prof. Dr. Doc. Dimitrie Mangeron Street, No. 73, 700050 Iasi, Romania
| | - Marcel Popa
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Bld. Prof. Dr. Doc. Dimitrie Mangeron Street, No. 73, 700050 Iasi, Romania
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, Pacurari Street, No. 11, 700511 Iasi, Romania
- Academy of Romanian Scientists, Ilfov Street, No. 3, Sector 5, 050094 Bucharest, Romania
| | - Hacene Mahmoudi
- Faculty of Technology, University Hassiba Benbouali of Chlef, Chlef BP 151 02000, Algeria; (M.D.); (K.Z.); (H.M.)
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Salahuddin N, Awad S, Elfiky M. Vanillin-crosslinked chitosan/ZnO nanocomposites as a drug delivery system for 5-fluorouracil: study on the release behavior via mesoporous ZrO 2-Co 3O 4 nanoparticles modified sensor and antitumor activity. RSC Adv 2022; 12:21422-21439. [PMID: 35975070 PMCID: PMC9346502 DOI: 10.1039/d2ra02717h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/23/2022] [Indexed: 01/10/2023] Open
Abstract
Herein, a series of vanillin-crosslinked chitosan (Vn-CS) nanocomposites (NCs) containing various contents of ZnO nanoparticles (NPs) was prepared and characterized via FTIR spectroscopy, XRD, TGA, SEM and TEM. Changing the weight% of ZnO NPs in the prepared NCs resulted in an improvement in their antibacterial activity against Gram-negative and Gram-positive bacteria strains compared with the unmodified CS, and the encapsulation efficiency of 5-fluorouracil (5-FU) was found to be in the range of 61.4–69.2%. Subsequently, the release of 5-FU was monitored utilizing the mesoporous ZrO2–Co3O4 NPs modified carbon paste sensor via the square-wave adsorptive anodic stripping voltammetry (SW-AdASV) technique. Also, the release mechanism of 5-FU from each NC was studied by applying the zero-order, first-order, Hixson–Crowell and Higuchi models to the experimental results. The cytotoxicity of prepared NCs and 5-FU-encapsulated NCs was evaluated against the HePG-2, MCF-7 and HCT-116 cancer cell lines, in addition to the WI-38 and WISH normal cell lines using the MTT assay. Notably, 5-FU/CV10 NC exhibited the highest antitumor activity towards all tested cancer cell lines and a moderate activity against WI-38 and WISH normal cell lines with IC50 values of 28.02 ± 2.5 and 31.65 ± 2.7 μg mL−1, respectively. The obtained nanocomposites exhibited suitable selectivity with minimum toxicity against normal cells. Herein, a series of vanillin-crosslinked chitosan (Vn-CS) nanocomposites (NCs) containing various contents of ZnO nanoparticles (NPs) was prepared and characterized via FTIR spectroscopy, XRD, TGA, SEM and TEM.![]()
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Affiliation(s)
| | - Salem Awad
- Chemistry Department, Faculty of Science Tanta 31527 Egypt
| | - Mona Elfiky
- Chemistry Department, Faculty of Science Tanta 31527 Egypt
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Studies on Intermolecular Interaction of N-Glycidyltrimethyl Ammonium Chloride Modified Chitosan/ N, N-Dimethyl- N-dodecyl- N-(2,3-epoxy propyl) Ammonium Chloride and Curcumin Delivery. Polymers (Basel) 2022; 14:polym14101936. [PMID: 35631818 PMCID: PMC9147693 DOI: 10.3390/polym14101936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/28/2022] [Accepted: 05/07/2022] [Indexed: 12/04/2022] Open
Abstract
Chitosan has potential applications in many fields, due to its biocompatibility, biodegradability and reproducibility. However, the insolubility in water restricts its wide application. In order to expand the application of chitosan in the delivery of oil-soluble drugs and improve the efficacy of oil-soluble drugs, N-Glycidyltrimethyl ammonium chloride-modified chitosan (GTA-m-CS) and N,N-Dimethyl-N-dodecyl-N-(1,2-epoxy propyl) ammonium chloride (DDEAC), a kind of reactive surfactant, were synthesized and characterized by FTIR, NMR and XRD methods. The interactions between GTA-m-CS and DDEAC was studied by surface tension, viscosity, conductivity and fluorescence methods. The parameters, including equilibrium surface tension, critical micelle concentrations of DDEAC with different GTA-m-CS concentration, critical aggregation concentration of DDEAC, the amount of DDEAC adsorbed on GTA-m-CS, pc20 and πcmc were obtained from the surface tension curves. The influence of temperature on the above parameters were evaluated. The degree of counterion binding to micelle and the thermodynamic parameters of the system were calculated from the conductivity curves. According to the change of conductivity with temperature, the thermodynamic parameters of micellar formation were calculated. The aggregation number of DDEAC molecules in GTA-m-CS/DDEAC aggregates were calculated from steady-state fluorescence data. Based on the experimental results, the interaction models between GTA-m-CS and DDEAC were proposed. The GTA-m-CS/DDEAC aggregates could be used as curcumin carries, and achieved sustained release.
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Kumar H, Kaur G. Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review. Front Chem 2021; 9:667941. [PMID: 34055738 PMCID: PMC8158659 DOI: 10.3389/fchem.2021.667941] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/01/2021] [Indexed: 11/13/2022] Open
Abstract
The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.
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Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Gagandeep Kaur
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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7
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El Seoud OA, Keppeler N, Malek NI, Galgano PD. Ionic Liquid-Based Surfactants: Recent Advances in Their Syntheses, Solution Properties, and Applications. Polymers (Basel) 2021; 13:1100. [PMID: 33808369 PMCID: PMC8036849 DOI: 10.3390/polym13071100] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/16/2022] Open
Abstract
The impetus for the expanding interest in ionic liquids (ILs) is their favorable properties and important applications. Ionic liquid-based surfactants (ILBSs) carry long-chain hydrophobic tails. Two or more molecules of ILBSs can be joined by covalent bonds leading, e.g., to gemini compounds (GILBSs). This review article focuses on aspects of the chemistry and applications of ILBSs and GILBSs, especially in the last ten years. Data on their adsorption at the interface and micelle formation are relevant for the applications of these surfactants. Therefore, we collected data for 152 ILBSs and 11 biamphiphilic compounds. The head ions of ILBSs are usually heterocyclic (imidazolium, pyridinium, pyrrolidinium, etc.). Most of these head-ions are also present in the reported 53 GILBSs. Where possible, we correlate the adsorption/micellar properties of the surfactants with their molecular structures, in particular, the number of carbon atoms present in the hydrocarbon "tail". The use of ILBSs as templates for the fabrication of mesoporous nanoparticles enables better control of particle porosity and size, hence increasing their usefulness. ILs and ILBSs form thermodynamically stable water/oil and oil/water microemulsions. These were employed as templates for (radical) polymerization reactions, where the monomer is the "oil" component. The formed polymer nanoparticles can be further stabilized against aggregation by using a functionalized ILBS that is co-polymerized with the monomers. In addition to updating the literature on the subject, we hope that this review highlights the versatility and hence the potential applications of these classes of surfactants in several fields, including synthesis, catalysis, polymers, decontamination, and drug delivery.
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Affiliation(s)
- Omar A. El Seoud
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
| | - Nicolas Keppeler
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
| | - Naved I. Malek
- Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology, Surat 395 007, Gujarat, India;
| | - Paula D. Galgano
- Institute of Chemistry, The University of São Paulo, São Paulo 05508-000, Brazil; (N.K.); (P.D.G.)
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Pedro SN, R. Freire CS, Silvestre AJD, Freire MG. The Role of Ionic Liquids in the Pharmaceutical Field: An Overview of Relevant Applications. Int J Mol Sci 2020; 21:E8298. [PMID: 33167474 PMCID: PMC7663996 DOI: 10.3390/ijms21218298] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 01/12/2023] Open
Abstract
Solubility, bioavailability, permeation, polymorphism, and stability concerns associated to solid-state pharmaceuticals demand for effective solutions. To overcome some of these drawbacks, ionic liquids (ILs) have been investigated as solvents, reagents, and anti-solvents in the synthesis and crystallization of active pharmaceutical ingredients (APIs), as solvents, co-solvents and emulsifiers in drug formulations, as pharmaceuticals (API-ILs) aiming liquid therapeutics, and in the development and/or improvement of drug-delivery-based systems. The present review focuses on the use of ILs in the pharmaceutical field, covering their multiple applications from pharmaceutical synthesis to drug delivery. The most relevant research conducted up to date is presented and discussed, together with a critical analysis of the most significant IL-based strategies in order to improve the performance of therapeutics and drug delivery systems.
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Affiliation(s)
| | | | | | - Mara G. Freire
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal; (S.N.P.); (C.S.R.F.); (A.J.D.S.)
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9
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Silva SS, Gomes JM, Rodrigues LC, Reis RL. Marine-Derived Polymers in Ionic Liquids: Architectures Development and Biomedical Applications. Mar Drugs 2020; 18:E346. [PMID: 32629815 PMCID: PMC7401240 DOI: 10.3390/md18070346] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/23/2020] [Accepted: 06/27/2020] [Indexed: 01/05/2023] Open
Abstract
Marine resources have considerable potential to develop high-value materials for applications in different fields, namely pharmaceutical, environmental, and biomedical. Despite that, the lack of solubility of marine-derived polymers in water and common organic solvents could restrict their applications. In the last years, ionic liquids (ILs) have emerged as platforms able to overcome those drawbacks, opening many routes to enlarge the use of marine-derived polymers as biomaterials, among other applications. From this perspective, ILs can be used as an efficient extraction media for polysaccharides from marine microalgae and wastes (e.g., crab shells, squid, and skeletons) or as solvents to process them in different shapes, such as films, hydrogels, nano/microparticles, and scaffolds. The resulting architectures can be applied in wound repair, bone regeneration, or gene and drug delivery systems. This review is focused on the recent research on the applications of ILs as processing platforms of biomaterials derived from marine polymers.
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Affiliation(s)
- Simone S. Silva
- 3B´s Research Group, I3Bs- Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, 4805-017 Barco, Guimarães, Portugal; (J.M.G.); (L.C.R.); (R.L.R.)
- ICVS/3B´s – PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Joana M. Gomes
- 3B´s Research Group, I3Bs- Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, 4805-017 Barco, Guimarães, Portugal; (J.M.G.); (L.C.R.); (R.L.R.)
- ICVS/3B´s – PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Luísa C. Rodrigues
- 3B´s Research Group, I3Bs- Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, 4805-017 Barco, Guimarães, Portugal; (J.M.G.); (L.C.R.); (R.L.R.)
- ICVS/3B´s – PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B´s Research Group, I3Bs- Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Avepark, 4805-017 Barco, Guimarães, Portugal; (J.M.G.); (L.C.R.); (R.L.R.)
- ICVS/3B´s – PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal
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10
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Enzyme immobilization on porous chitosan hydrogel capsules formed by anionic surfactant gelation. Biotechnol Lett 2020; 42:845-852. [PMID: 32006352 DOI: 10.1007/s10529-020-02829-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/27/2020] [Indexed: 01/23/2023]
Abstract
OBJECTIVES Sodium dodecyl sulfate (SDS)-chitosan hydrogels have been employed for adsorption of anionic dyes and metallic substances. Two mutant forms of Thermoanaerobacter ethanolicus alcohol dehydrogenase (TeSADH) were used as model enzymes to develop a novel enzyme immobilization technique employing newly formulated porous chitosan hydrogels. RESULTS The enzyme immobilized on chitosan hydrogel capsules formed by 5 g/l SDS gelation and subsequent treatment with 0.05 M NaOH was 28-35% higher in NADPH production than that formed by 20 g/l SDS gelation only under the same conditions. A 48-h asymmetric biphasic reduction of acetophenone with immobilized TeSADH enzyme at 50 °C showed 68% increase in (R)-1-phenylethanol production than the free enzyme. Compared to the free enzyme which denatured and lost its activity at 80 °C, the immobilized enzyme retained about 25% of its initial activity after 2-h incubation. CONCLUSION In contrast to the conventional chitosan hydrogel which suffers thermal and operational stability, the newly formulated porous chitosan hydrogel capsules have excellent enzyme loading efficiency and stable at harsh temperatures. Especially, this newly developed enzyme immobilization method would be applicable for food processing.
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Rabelo RS, Tavares GM, Prata AS, Hubinger MD. Complexation of chitosan with gum Arabic, sodium alginate and κ-carrageenan: Effects of pH, polymer ratio and salt concentration. Carbohydr Polym 2019; 223:115120. [DOI: 10.1016/j.carbpol.2019.115120] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/17/2019] [Accepted: 07/21/2019] [Indexed: 12/20/2022]
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12
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Solvent strength and biopolymer blending effects on physicochemical properties of zein-chitosan-polyvinyl alcohol composite films. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.08.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Pal A, Yadav S. Investigation of physicochemical properties between poly(ethylene glycol)/poly(vinylpyrrolidone) and 1-butyl-3-methylimidazolium dodecyl sulfate in aqueous solution. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.10.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Pal A, Yadav S. Effect of cationic polyelectrolyte poly(diallyldimethylammonium chloride) on micellization behavior of anionic surface active ionic liquid 1-butyl-3-methylimidazolium dodecylsulfate [C4mim][C12SO4] in aqueous solutions. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4379-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Singh G, Singh G, Kang TS. Colloidal systems of surface active ionic liquids and sodium carboxymethyl cellulose: physicochemical investigations and preparation of magnetic nano-composites. Phys Chem Chem Phys 2018; 20:18528-18538. [DOI: 10.1039/c8cp02841a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Carboxymethyl cellulose-surface active ionic liquid colloidal formulations for preparation of magnetic nano-composites.
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Affiliation(s)
- Gagandeep Singh
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Gurbir Singh
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- UGC-Centre for Advance Studies – II
- Guru Nanak Dev University
- Amritsar
- India
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16
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Effect of a copolymer poly(4-styrenesufonic acid-co-maleic acid) sodium salt on aggregation behaviour of imidazolium based surface active ionic liquid in aqueous solution. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.09.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Rathi N, Gaikar VG. Optimization of Continuous Synthesis of Cross-Linked Chitosan Nanoparticles Using Microreactors. Chem Eng Technol 2017. [DOI: 10.1002/ceat.201600339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Noopur Rathi
- Institute of Chemical Technology; Department of Chemical Engineering; Nathalal Parekh Marg, Matunga 400019 Mumbai India
| | - Vilas G. Gaikar
- Institute of Chemical Technology; Department of Chemical Engineering; Nathalal Parekh Marg, Matunga 400019 Mumbai India
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18
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Qin L, Wang XH. Surface adsorption and thermodynamic properties of mixed system of ionic liquid surfactants with cetyltrimethyl ammonium bromide. RSC Adv 2017. [DOI: 10.1039/c7ra08915e] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The effects of temperature and concentration of CTAB added to imidazolium-based ionic liquids (CnmimBr, n = 10, 12, 16) were investigated, and surface active parameters and aggregation of these surfactants were explored by surface tension and conductivity measurements.
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Affiliation(s)
- Li Qin
- Jiangsu Key Laboratory for Bioresources of Saline Solis
- School of Chemistry and Environmental Engineering
- Yancheng Teachers University
- Yancheng 224051
- P. R. China
| | - Xin-Hong Wang
- Jiangsu Key Laboratory for Bioresources of Saline Solis
- School of Chemistry and Environmental Engineering
- Yancheng Teachers University
- Yancheng 224051
- P. R. China
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19
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Seyhan Bozkurt S, Erdogan D, Antep M, Tuzmen N, Merdivan M. Use of ionic liquid based chitosan as sorbent for preconcentration of fluoroquinolones in milk, egg, fish, bovine, and chicken meat samples by solid phase extraction prior to HPLC determination. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2015.1116010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Serap Seyhan Bozkurt
- Faculty of Science, Department of Chemistry, Dokuz Eylul University, Kaynaklar Campus, Izmir, Turkey
| | - Deniz Erdogan
- Faculty of Science, Department of Chemistry, Dokuz Eylul University, Kaynaklar Campus, Izmir, Turkey
| | - Mine Antep
- Faculty of Science, Department of Chemistry, Dokuz Eylul University, Kaynaklar Campus, Izmir, Turkey
| | - Nalan Tuzmen
- Faculty of Science, Department of Chemistry, Dokuz Eylul University, Kaynaklar Campus, Izmir, Turkey
| | - Melek Merdivan
- Faculty of Science, Department of Chemistry, Dokuz Eylul University, Kaynaklar Campus, Izmir, Turkey
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20
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Gehlot PS, Rao KS, Bharmoria P, Damarla K, Gupta H, Drechsler M, Kumar A. Spontaneous Formation of Multiarchitecture Vesicles of [C8mim]Br + [Na]DBS in Aqueous Medium: Synergic Interplay of Electrostatic, Hydrophobic, and π–π Stacking Interactions. J Phys Chem B 2015; 119:15300-9. [DOI: 10.1021/acs.jpcb.5b09850] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Praveen Singh Gehlot
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - K. Srinivasa Rao
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Pankaj Bharmoria
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Krishnaiah Damarla
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Hariom Gupta
- CSIR-Central Salt
and Marine Chemicals Research Institute, Council of Scientific and
Industrial Research (CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
| | - Markus Drechsler
- Universität Bayreuth, BIMF − Soft Matter Electron Microscopy, Bayreuth, D-95447, Germany
| | - Arvind Kumar
- Academy of Scientific
and Innovative Research (AcSIR)-Central Salt and Marine Chemicals
Research Institute, Council of Scientific and Industrial Research
(CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
- CSIR-Central Salt
and Marine Chemicals Research Institute, Council of Scientific and
Industrial Research (CSIR), G. B. Marg, Bhavnagar, 364002, Gujarat India
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21
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Zhang C, Yang X, Wang S, Li J, Cui Y, Li T. Interaction Between GMAC-m-CS and Surfactants: Surface Tension and Conductivity Methods. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2015.1015543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Sharma R, Kamal A, Kang TS, Mahajan RK. Interactional behavior of the polyelectrolyte poly sodium 4-styrene sulphonate (NaPSS) with imidazolium based surface active ionic liquids in an aqueous medium. Phys Chem Chem Phys 2015; 17:23582-94. [PMID: 26300416 DOI: 10.1039/c5cp02642c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present study aims to develop an understanding of the interactions between an anionic polyelectrolyte, poly sodium 4-styrene sulphonate (NaPSS), and cationic surface active imidazolium based ionic liquids (SAILs), [Cnmim][Cl] (n = 10, 12, 14) using a multi-technique approach. Various physicochemical and electrochemical techniques such as surface tension, conductivity, fluorescence, isothermal titration calorimetry (ITC), dynamic light scattering (DLS), turbidity, potentiometry, cyclic voltammetry (CV), and differential pulse voltammetry (DPV) are employed to obtain comprehensive information about NaPSS-SAIL interactions. Different stages of interaction, corresponding to the critical aggregation concentration (cac), critical saturation concentration (Cs) and critical micelle concentration (cmc) have been observed owing to the strong electrostatic and hydrophobic interactions, and the results obtained from different techniques complement each other very well. The results extracted from DLS and turbidity measurements clearly indicated that the size of the micelle like aggregates first decreases and then increases in the presence of polyelectrolyte. The binding isotherms obtained using potentiometry show a concentration dependence and the highly co-operative nature of the interactions which is attributed to aggregation of the polyelectrolyte-SAIL complexes. The diffusion coefficients (Dm) of the electroactive probe in the pure and NaPSS-SAIL mixed systems were obtained, which were further used to obtain the values of the micellar self-diffusion coefficients (D) and inter-micellar interaction parameters (kd).
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Affiliation(s)
- Renu Sharma
- Department of Chemistry, UGC-Centre for Advanced Studies-I, Guru Nanak Dev University, Amritsar-143005, India.
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23
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Chiappisi L, Gradzielski M. Co-assembly in chitosan-surfactant mixtures: thermodynamics, structures, interfacial properties and applications. Adv Colloid Interface Sci 2015; 220:92-107. [PMID: 25865361 DOI: 10.1016/j.cis.2015.03.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/23/2015] [Accepted: 03/23/2015] [Indexed: 01/23/2023]
Abstract
In this review, different aspects characterizing chitosan-surfactant mixtures are summarized and compared. Chitosan is a bioderived cationic polysaccharide that finds wide-ranged applications in various field, e.g., medical or food industry, in which synergistic effects with surfactant can play a fundamental role. In particular, the behavior of chitosan interacting with strong and weak anionic, nonionic as well as cationic surfactants is reviewed. We put a focus on oppositely charged systems, as they exhibit the most interesting features. In that context, we discuss the thermodynamic description of the interaction and in particular the structural changes as they occur as a function of the mixed systems and external parameters. Moreover, peculiar properties of chitosan coated phospholipid vesicles are summarized. Finally, their co-assembly at interfaces is briefly reviewed. Despite the behavior of the mentioned systems might strongly differ, resulting in a high variety of properties, few general rules can be pointed out which improve the understanding of such complex systems.
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24
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Sharma R, Kang TS, Mahajan RK. Complexation of triblock reverse copolymer 10R5 with surface active ionic liquids in aqueous medium: a physico-chemical study. RSC Adv 2015. [DOI: 10.1039/c5ra00515a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A comprehensive study on the interactions of surface active ionic liquids (SAILs) [Cnmim][Cl], where n = 8, 10, and 12, with a triblock reverse copolymer, 10R5, [(PPO)8–(PEO)22–(PPO)8] has been performed using various physico-chemical techniques.
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Affiliation(s)
- Renu Sharma
- Department of Chemistry
- UGC-Centre for Advanced Studies-I
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Tejwant Singh Kang
- Department of Chemistry
- UGC-Centre for Advanced Studies-I
- Guru Nanak Dev University
- Amritsar-143005
- India
| | - Rakesh Kumar Mahajan
- Department of Chemistry
- UGC-Centre for Advanced Studies-I
- Guru Nanak Dev University
- Amritsar-143005
- India
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25
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Li PW, Wang G, Yang ZM, Duan W, Peng Z, Kong LX, Wang QH. Development of drug-loaded chitosan-vanillin nanoparticles and its cytotoxicity against HT-29 cells. Drug Deliv 2014; 23:30-5. [PMID: 24712731 DOI: 10.3109/10717544.2014.900590] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Chitosan as a natural polysaccharide derived from chitin of arthropods like shrimp and crab, attracts much interest due to its inherent properties, especially for application in biomedical materials. Presently, biodegradable and biocompatible chitosan nanoparticles are attractive for drug delivery. However, some physicochemical characteristics of chitosan nanoparticles still need to be further improved in practice. In this work, chitosan nanoparticles were produced by crosslinking chitosan with 3-methoxy-4-hydroxybenzaldehyde (vanillin) through a Schiff reaction. Chitosan nanoparticles were 200-250 nm in diameter with smooth surface and were negatively charged with a zeta potential of - 17.4 mV in neutral solution. Efficient drug loading and drug encapsulation were achieved using 5-fluorouracil as a model of hydrophilic drug. Drug release from the nanoparticles was constant and controllable. The in vitro cytotoxicity against HT-29 cells and cellular uptake of the chitosan nanoparticles were evaluated by methyl thiazolyl tetrazolium method, confocal laser scanning microscope and flow cytometer, respectively. The results indicate that the chitosan nanoparticles crosslinked with vanillin are a promising vehicle for the delivery of anticancer drugs.
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Affiliation(s)
- Pu-Wang Li
- a Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences , Zhanjiang , P.R. China
| | - Guang Wang
- a Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences , Zhanjiang , P.R. China
| | - Zi-Ming Yang
- a Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences , Zhanjiang , P.R. China
| | - Wei Duan
- b Institute for Frontier Materials , Deakin University , Geelong Waurn Ponds Campus , Australia , and
| | - Zheng Peng
- a Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences , Zhanjiang , P.R. China
| | - Ling-Xue Kong
- b Institute for Frontier Materials , Deakin University , Geelong Waurn Ponds Campus , Australia , and
| | - Qing-Huang Wang
- a Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences , Zhanjiang , P.R. China .,c National Center for Important Tropical Crops Engineering and Technology Research , Haikou , P.R. China
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26
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Kong L, Chen W. Ionic liquid directed assembly of wrinkled and porous composite electrode for high-power flexible supercapacitors. RSC Adv 2014. [DOI: 10.1039/c4ra11188e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
By using carbon nanotube/ionic liquid as surfactant-like agent, flexible reduced graphene oxide/polyaniline composite electrode membranes with wrinkled and porous structure were fabricated for high performance supercapacitors.
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Affiliation(s)
- Lirong Kong
- i-Lab
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou, P. R. China
| | - Wei. Chen
- i-Lab
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou, P. R. China
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27
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Bharmoria P, Kumar A. Interactional behaviour of surface active ionic liquids with gelling biopolymer agarose in aqueous medium. RSC Adv 2013. [DOI: 10.1039/c3ra41980k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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