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Kaur B, Chaudhary GR, Kaur G. Cholesterol vs Ergosterol: Influence on the Dynamic and Structural Properties of the Cobalt-Based Metallosomal Bilayer Membrane. Mol Pharm 2024; 21:3643-3660. [PMID: 38885973 DOI: 10.1021/acs.molpharmaceut.4c00376] [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] [Indexed: 06/20/2024]
Abstract
Sterol derivatives are a crucial part of liposomes, as their concentration and nature can induce significant alternations in their characteristic features. For natural liposomal-based (phospholipid-based) studies, the bulk literature is already present depicting the role of the concentration or nature of different sterol derivatives in modulation of membrane properties. However, the studies aiming at evaluating the effect of sterol derivatives on synthetic liposomal assemblies are limited to cholesterol (Chl), and a comparative effect with other sterol derivatives, such as ergosterol (Erg), has never been studied. To fill this research gap, through this work, we intend to provide insights into the concentration-dependent effect of two sterol derivatives (Chl and Erg) on a synthetic liposomal assembly (i.e., metallosomes) prepared via thin film hydration route using a double-tailed metallosurfactant fabricated by modifying cetylpyridinium chloride with cobalt (Co) (i.e., Co:CPC II). The morphological evaluations with cryogenic-transmission electron microscopy (cryo-TEM), atomic force microscopy (AFM), and field emission-scanning electron microscopy (FE-SEM) indicated that metallosomes retained their spherical morphology irrespective of the nature and concentration of sterol derivatives. However, the size, ζ-potential, and lamellar width values were significantly modified with the incorporation of sterol derivatives in a concentration-dependent manner. In-depth studies affirmed that the extent of modulation of the bilayer in terms of hydrophobicity, fluidity, and rigidity was more severe with Chl than Erg. Such differences in the membrane properties lead to their contrasting behavior in the delivery of the broad-spectrum active compound "curcumin". From entrapment to in vitro behavior, the metallosomes demonstrated dissimilar behavior as even though Erg-modified metallosomes (at higher concentrations of Erg) exhibited low entrapment efficiency, they still could easily release >80% of the entrapped drug. In vitro studies conducted with Staphylococcus aureus bacterial cultures further revealed an interesting pattern of activity as the incorporation of Chl reduced the toxicity of the self-assembly, whereas their Erg-modified counterparts yielded slightly augmented toxicity toward these bacterial cells. Furthermore, Chl- and Erg-modified assemblies also exhibited contrasting behavior in their interaction studies with bacterial DNA.
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Affiliation(s)
- Baljinder Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Gurpreet Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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Kaur B, Kaur N, Sharma T, Kaur G, Chaudhary GR. Metallosurfactant based synthetic liposomes as a substitute for phospholipids to safely store curcumin. Colloids Surf B Biointerfaces 2022; 217:112621. [PMID: 35714508 DOI: 10.1016/j.colsurfb.2022.112621] [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: 02/11/2022] [Revised: 05/26/2022] [Accepted: 06/07/2022] [Indexed: 10/18/2022]
Abstract
Curcumin has shown remarkable therapeutic utilization for various medical conditions. Still, its limited chemical stability and rapid hydrolysis capped its applications to a certain extent. Approaches have been made in the past to surpass these shortcomings by encapsulating the drug in surfactant-based micelles or liposomes and so far, natural surfactants have been used to do this bidding. Through this report, we are presenting curcumin entrapped inside synthetic metal-based liposomal assembly (metallosomes) based on hybrid-surfactants known as metallosurfactants (MS). Three metallosomes i.e. metallosomes (a), (b), and (c) were synthesized with increasing cholesterol (Chl) ratio w.r.t MS (MS:Chl 1:0, 1:0.5, and 1:1). Firstly, the membrane properties of the metallosomes were studied in the absence of the drug. The studies confirmed the direct influence of Chl concentration on the membrane properties and the metallosomes were found to be more hydrophobic, rigid, homogenous, stable, and less fluid with Chl incorporation. These studies were proven beneficial when drug-loaded metallosomes were studied and metallosomes (c), with the highest Chl content, emerged as the maximum drug loader due to their most hydrophobic nature. However, the drug was released at the slowest rate for this metallosomal system due to its less fluid and more rigid nature. On the other hand, these metallosomes were more efficient for shielding entrapped drug from acidic and alkaline environs as lesser drug degradation was observed in the experiments compared to the free curcumin. These metallosomes also exhibited efficient interactional behavior with bacterial (MRSA) DNA.
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Affiliation(s)
- Baljinder Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Navdeep Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Tanvi Sharma
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Gurpreet Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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3
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Hu L, Xie G, Lan Q, Yu Z, Hu L, Zhu L. Quantitative UPLC-MS/MS to Detect DMPC and DPPC Applied to Paraquat Poisoning in Cells and Serum. Chromatographia 2022. [DOI: 10.1007/s10337-021-04113-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Sahu AK, Mishra AK. Curcumin-Induced Membrane Property Changes in DMPC Multilamellar Vesicles and the Effects of Membrane-Destabilizing Molecules on Curcumin-Loaded Multilamellar Vesicles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12753-12766. [PMID: 34694126 DOI: 10.1021/acs.langmuir.1c02407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Curcumin (CUR) is the major bioactive component of turmeric (Curcuma longa), commonly used as a spice and traditional medicine in India. CUR possesses a wide range of pharmacological benefits, including antioxidant, anticarcinogenic, antimutagenic, anti-inflammatory, anti-Alzheimer, and anti-Parkinson effects. The CUR-membrane interaction is believed to be the reason for such biological activity of CUR. Several research groups have modeled the interaction of CUR with artificial model lipid membranes using various techniques such as nuclear magnetic resonance (NMR), small-angle X-ray scattering (SAXS), and differential scanning calorimetry (DSC). However, the mechanism of its action is still unclear. A fluorescent-probe-based technique could be advantageous to study the CUR-lipid membrane interaction due to its sensitivity toward the local environment and its multiparametric nature. In this work, we have used the intrinsic fluorescence properties of CUR to investigate CUR-induced physical property changes in 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) multilamellar vesicles (MLVs) at various CUR concentrations. By rationalizing the results of steady-state fluorescence intensity, fluorescence anisotropy, temperature-dependent fluorescence intensity, temperature-dependent fluorescence anisotropy, and quenching experiments, we have proposed a model showing concentration-dependent effects of CUR on the DMPC bilayer membrane. We suggest that at low concentrations (≤1 mol %), CUR is homogeneously distributed in the DMPC bilayer membrane in both the solid gel (SG) and liquid crystalline (LC) phases. At high concentrations (>1 mol %), CUR molecules form segregated domains that fluidize both membrane phases. However, the CUR-induced fluidization is less pronounced in the LC phase as some CUR molecules from the domain partition into the bilayer core. Further, the effects of membrane-destabilizing molecules such as bile salts, capsaicin (CAP), and piperine (PIP) on CUR-loaded DMPC multilamellar vesicles were studied. Our work also shows that CUR has a stabilizing effect on the DMPC membrane at high concentrations.
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Affiliation(s)
- Anand Kumar Sahu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ashok Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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5
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Curcumin Modulates 1,2-dibehenoyl-sn-glycero-3-phosphocholine (DBPC) Liposomes: Chitosan Oligosaccharide Lactate Influences Membrane Fluidity But Does Not Alter Phase Transition Temperature of DBPC Liposomes. J Fluoresc 2021; 32:155-163. [PMID: 34648127 DOI: 10.1007/s10895-021-02828-8] [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: 07/25/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
1,2-dibehenoyl-sn-glycero-3-phosphocholine (DBPC) is one of the important phospholipids found in cell membrane but not studied well. Importance of curcumin as a dietary supplement and for its medicinal properites is getting widely recoginsed. The present study for the first time explores the effect of curcumin on properties of DBPC liposomes by monitoring the fluorescence properties of curcumin. The phase transition temperature (Tm) of DBPC is assessed which confirms increase in curcumin concentration causes a slight drop in the Tm value. Chitosan is being applied for various drug delivery uses. The study establishes new insight on effect of chitosan oligosaccharide lactate on DBPC liposomes. It is found that in the absence of chitosan oligosaccharide lactate, curcumin partitions more strongly in the liquids crystalline phase than in the solid gel phase, however, the opposite result is obtained with the presence of chitosan oligosaccharide lactate which penetrates into the DBPC liposomes membranes at higher temperature, blocking thus the passage of curcumin into the lipid bilayer. However, addition of chitosan oligosaccharide lactate had no effect on the Tm. Fluorescence quenching study of curcumin establishes that the location of curcumin to be in the hydrophobic cavity of DBPC membrane.
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Sadeghi Mohammadi S, Vaezi Z, Naderi-Manesh H. Improvement of anti-biofilm activities via co-delivery of curcumin and gentamicin in lipid-polymer hybrid nanoparticle. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:174-196. [PMID: 34605363 DOI: 10.1080/09205063.2021.1982159] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Pseudomonas aeruginosa is the most common pathogen that causes chronic lung infections and recurrence of the disease in cystic fibrosis patients by hiding inside cells and biofilm matrix. Herein, we developed gentamicin and curcumin-loaded lipid-polymer hybrid nanoparticle- (termed CG-HNPs) to evaluate in vitro activities against biofilm-embedded P. aeruginosa and compared with lipid nanoparticles containing the same drugs (CG-Lip). The nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), fluorescence spectroscopy, and ultraviolet-visible (UV-vis) spectroscopy, which demonstrated that HNPs with a diameter of approximately 340 nm were uniform. The optimal CG-HNPs formulation illustrated high encapsulation (∼70%) and controlled release characteristics (gradually released in 72 h). The antibacterial activities of generated nanoparticles are maintained against planktonic and biofilm bacteria and it is effective in damage established biofilms. Besides, HNPs were biocompatible and nontoxic to J774 and HFF cell lines and uptake by the macrophages (J774), which facilitated the killing of intracellular bacteria in macrophages. These results introduced CG-HNPs as a promising antibacterial agent for the treatment of chronic infections and intracellular bacteria due to excellent antibacterial activity.
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Affiliation(s)
- Sanam Sadeghi Mohammadi
- Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Zahra Vaezi
- Department of Bioactive compounds, Faculty of Interdisciplinary Science and Technologies, Tarbiat Modares University, Tehran, Iran
| | - Hossein Naderi-Manesh
- Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran.,Department of Bioactive compounds, Faculty of Interdisciplinary Science and Technologies, Tarbiat Modares University, Tehran, Iran
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7
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Hamd W, Patra D, El-Rassy H. Curcumin-loaded metal oxide aerogels: supercritical drying and stability. RSC Adv 2021; 11:34479-34486. [PMID: 35494760 PMCID: PMC9042724 DOI: 10.1039/d1ra06693e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/18/2021] [Indexed: 11/21/2022] Open
Abstract
Curcumin, known as a potential antioxidant and anti-inflammatory agent, has major limitations for its therapeutic use because of its lack of water solubility and relatively low bioavailability. We report for the first time the loading of different metal oxide aerogels with curcumin. The aerogels were prepared via the sol–gel process and dried under supercritical conditions. Mixing curcumin with the metal precursors prior to the formation of the solid network ensures maximum entrapment. The curcumin–network interactions stabilize the organic moiety and create hybrid aerogels as potential vehicles for curcumin in various media. The aerogels were characterized by FTIR spectroscopy, thermogravimetric analysis, electron microscopy, and fluorescence spectroscopy to confirm their hybrid nature. The stability study by fluorescence spectroscopy revealed three distinct behaviors depending on the nature of the metal oxide: (i) a minor interaction between curcumin and the solid network slightly affecting the microenvironment; (ii) a quenching phenomenon when iron is present explained by a coordination between the iron ions and curcumin; and (iii) a strong complexation of the metal ions with curcumin after gelation. Metal oxide aerogels are investigated as encapsulation media for curcumin, a polyphenol having potential uses in medicine, probing, and sensing.![]()
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Affiliation(s)
- Wael Hamd
- Department of Chemistry, American University of Beirut, P. O. Box 11-0236, Riad El-Solh 1107 2020, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, P. O. Box 11-0236, Riad El-Solh 1107 2020, Beirut, Lebanon
| | - Houssam El-Rassy
- Department of Chemistry, American University of Beirut, P. O. Box 11-0236, Riad El-Solh 1107 2020, Beirut, Lebanon
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8
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Estephan M, El Kurdi R, Patra D. Interaction of curcumin with diarachidonyl phosphatidyl choline (DAPC) liposomes: Chitosan protects DAPC liposomes without changing phase transition temperature but impacting membrane permeability. Colloids Surf B Biointerfaces 2020; 199:111546. [PMID: 33373846 DOI: 10.1016/j.colsurfb.2020.111546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
The developing public interest in traditional medicine, especially plants-based drug, has prompted extensive research on the potential of naturally existing compounds. Among these compounds, curcumin is currently one of the most studied substances. In this study, we elaborate the physical properties of diarachidonyl phosphatidyl choline (DAPC) liposome using fluorescence method, where curcumin at low concentration was used as a probe molecule. In the first place, the phase transition temperature of DAPC was determined by following the fluorescence intensity of curcumin as a function of temperature, along with evaluating the effect of concentration of curcumin in the presence or absence of chitosan oligosaccharide lactate as an additional protective layer. On the other hand, quenching reactions using CPB and KI as quenchers reflected the ease of entry of different concentrations of these quenchers to the curcumin located in the hydrophobic core of the liposome which give new insight about the lipophilicity and permeability of the DAPC membrane. Finally, the partition coefficient analysis was investigated. It was concluded that curcumin has a higher partition coefficient at a temperature above the phase transition temperature of DAPC liposomes where the liposome is in the fluid liquid crystalline phase. Modulation of liposomes properties in the presence of chitosan oligosaccharide lactate layer was for the first time investigated. Chitosan oligosaccharide lactate acts as protecting layer without changing the phase transition temperature, but it affects the membrane permeability depending on solid gel and liquid crystalline phase.
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Affiliation(s)
- Maria Estephan
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Riham El Kurdi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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9
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Sahu AK, Mishra J, Mishra AK. Introducing Tween-curcumin niosomes: preparation, characterization and microenvironment study. SOFT MATTER 2020; 16:1779-1791. [PMID: 31970372 DOI: 10.1039/c9sm02416f] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this work, we report unusual niosomes (non-ionic surfactant based vesicles), prepared using non-ionic surfactant Tween 80 (T80) as well as Tween 20 (T20) and curcumin. Conventional niosomes consist of non-ionic surfactant and cholesterol. We found that, despite being a probiotic, curcumin plays a similar role to cholesterol in the formation and stabilization of niosomes. The prepared Tween-curcumin niosomes were characterised using Dynamic Light Scattering (DLS), zeta potential, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and Transmission Electron Microscopy (TEM) techniques. The curcumin-induced micelle to vesicle transition in the Tween surfactants was investigated by DLS, zeta potential, fluorescence anisotropy, and fluorescence lifetime studies. At room temperature (298 K), the prepared niosomes were found to be stable; however, at a higher temperature (333 K), the niosomes degrade gradually and irreversibly to form micelles. The temperature-dependent vesicle to micelle degradation was monitored using fluorescence anisotropy, absorption, DLS and Differential Scanning Calorimetry (DSC) measurements. Further, the Tween-curcumin niosomes show a controlled release of curcumin, which could open up the possibility of multidrug therapy.
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Affiliation(s)
- Anand Kumar Sahu
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Jhili Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Ashok Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
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10
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Nakama KA, dos Santos RB, da Rosa Silva CE, Izoton JC, Savall ASP, Gutirrez MEZ, Roman SS, Luchese C, Pinton S, Haas SE. Establishment of analytical method for quantification of anti-inflammatory agents co-nanoencapsulated and its application to physicochemical development and characterization of lipid-core nanocapsules. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.05.011] [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] Open
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11
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Al-Namil DS, Khoury EE, Patra D. Solid-State Green Synthesis of Ag NPs: Higher Temperature Harvests Larger Ag NPs but Smaller Size Has Better Catalytic Reduction Reaction. Sci Rep 2019; 9:15212. [PMID: 31645616 PMCID: PMC6811623 DOI: 10.1038/s41598-019-51693-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 09/19/2019] [Indexed: 12/28/2022] Open
Abstract
In this work a novel solid-state green approach without using any solvent environment has been proposed to synthesize Ag NPs. The synthetic condition has been investigated in 4 °C, 20 °C, 40 °C and 60 °C and at ten different time intervals. This synthesis process gives different size and shape of curcumin conjugated Ag NPs, which have been confirmed by various morphological and spectroscopic techniques. It is found that higher temperature and longer time produces larger particles size and different varieties in shapes. For example, Ag NPs prepared at 4 °C are spherical shapes whereas that prepared at 60 °C are of spherical, rods, and many hexagonal shapes. At 60 °C and after 5 and 7 days the size of the prepared Ag NPs exceed the nano scale to reach micro scale level. This size and shape distribution are well reflected in the optical properties as absorbance, fluorescence intensity and SFS intensity of Ag NPs consistently increase with increase in temperature during synthesis. Ag NPs obtained in different temperature and various time intervals have been subsequently tested as catalysts for the reduction reaction, where 4-nitrophenol is reduced to 4-aminophenol in the presence of NaBH4. It is found that smaller particles have better catalytic properties for the reduction reaction.
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Affiliation(s)
| | - Elsy El Khoury
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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12
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Kargozar S, Baino F, Hoseini SJ, Verdi J, Asadpour S, Mozafari M. Curcumin: footprints on cardiac tissue engineering. Expert Opin Biol Ther 2019; 19:1199-1205. [DOI: 10.1080/14712598.2019.1650912] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Francesco Baino
- Applied Science and Technology Department, Institute of Materials Physics and Engineering, Torino, Italy
| | - Seyed Javad Hoseini
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Javad Verdi
- Tissue Engineering & Applied Cell Sciences Department, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shiva Asadpour
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Masoud Mozafari
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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13
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Sadeghi Mohammadi S, Vaezi Z, Shojaedin-Givi B, Naderi-Manesh H. Chemiluminescent liposomes as a theranostic carrier for detection of tumor cells under oxidative stress. Anal Chim Acta 2019; 1059:113-123. [DOI: 10.1016/j.aca.2019.01.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 01/20/2019] [Accepted: 01/23/2019] [Indexed: 10/27/2022]
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14
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Sharma A, Yadav A, Gupta N, Sharma S, Kakkar R, Cwiklinski K, Quaye E, Mahajan SD, Schwartz SA, Kumar Sharma R. Multifunctional mesoporous curcumin encapsulated iron-phenanthroline nanocluster: A new Anti-HIV agent. Colloids Surf B Biointerfaces 2019; 180:289-297. [PMID: 31071568 DOI: 10.1016/j.colsurfb.2019.04.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/02/2019] [Accepted: 04/27/2019] [Indexed: 01/16/2023]
Abstract
A new strategy to encapsulating the drug curcumin into the hydrophobic core of the iron-phenanthroline nanocomplex (NIP) and eventually its release is signified. NIP was prepared via coordinate interaction between Fe2+ and the lone pairs present on the N atoms of the bidentate phenanthroline ligand (spherical morphology, diameter 18.8 nm, mesoporous with pore size 2.443 nm, amorphous). Thereafter, curcumin was successfully encapsulated (NCIP) in NIP, resulting in its enhanced stability (spherical morphology, diameter 46.8 nm). The nanocomplex NIP was used for drug delivery applications. We evaluated the anti-HIV effects of NCIP in vitro on cultures of HIV infected human microglia. The treatment of HIV-1 infected microglia with NCIP significantly decreased the expression of HIV-p24 by 41% and pro-inflammatory mediators TNF-α, IL-8 and NO by 61.2%, 41% and 50.2%, respectively, compared to NIP. Flow cytometry data also support the decrease in TNF-α and IL-8 expression in case of NCIP. NCIP induced antioxidative effects by increasing the gene expression of catalase (CAT) and simulatenously decreasing hemeoxygenase-1 (HMOX-1) gene expression, thereby maintaining homeostasis which reduces neuroinflammation. These results support our premise that NCIP may be a significant adjuvant when used with traditional anti-retroviral regimens and may ameliorate HIV-1 associated neurotoxicity.
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Affiliation(s)
- Anu Sharma
- Department of Chemistry, Nanotechnology and Drug Delivery Research Lab, University of Delhi, India
| | - Anita Yadav
- Department of Chemistry, Nanotechnology and Drug Delivery Research Lab, University of Delhi, India
| | - Nikesh Gupta
- Department of Chemistry, Nanotechnology and Drug Delivery Research Lab, University of Delhi, India
| | - Sandeep Sharma
- Department of Chemistry, Nanotechnology and Drug Delivery Research Lab, University of Delhi, India
| | - Rita Kakkar
- Department of Chemistry, Computational chemistry Lab, University of Delhi, India
| | - Katherine Cwiklinski
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Elizabeth Quaye
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Supriya D Mahajan
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA.
| | - Stanley A Schwartz
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA.
| | - Rakesh Kumar Sharma
- Department of Chemistry, Nanotechnology and Drug Delivery Research Lab, University of Delhi, India.
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15
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He Y, Zhang W, Guo T, Zhang G, Qin W, Zhang L, Wang C, Zhu W, Yang M, Hu X, Singh V, Wu L, Gref R, Zhang J. Drug nanoclusters formed in confined nano-cages of CD-MOF: dramatic enhancement of solubility and bioavailability of azilsartan. Acta Pharm Sin B 2019; 9:97-106. [PMID: 30766781 PMCID: PMC6361728 DOI: 10.1016/j.apsb.2018.09.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/10/2018] [Accepted: 07/30/2018] [Indexed: 01/01/2023] Open
Abstract
Tremendous efforts have been devoted to the enhancement of drug solubility using nanotechnologies, but few of them are capable to produce drug particles with sizes less than a few nanometers. This challenge has been addressed here by using biocompatible versatile γ-cyclodextrin (γ-CD) metal-organic framework (CD-MOF) large molecular cages in which azilsartan (AZL) was successfully confined producing clusters in the nanometer range. This strategy allowed to improve the bioavailability of AZL in Sprague-Dawley rats by 9.7-fold after loading into CD-MOF. The apparent solubility of AZL/CD-MOF was enhanced by 340-fold when compared to the pure drug. Based on molecular modeling, a dual molecular mechanism of nanoclusterization and complexation of AZL inside the CD-MOF cages was proposed, which was confirmed by small angle X-ray scattering (SAXS) and synchrotron radiation-Fourier transform infrared spectroscopy (SR-FTIR) techniques. In a typical cage-like unit of CD-MOF, three molecules of AZL were included by the γ-CD pairs, whilst other three AZL molecules formed a nanocluster inside the 1.7 nm sized cavity surrounded by six γ-CDs. This research demonstrates a dual molecular mechanism of complexation and nanoclusterization in CD-MOF leading to significant improvement in the bioavailability of insoluble drugs.
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Affiliation(s)
- Yuanzhi He
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Wei Zhang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Tao Guo
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Guoqing Zhang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Wei Qin
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Liu Zhang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Caifen Wang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Weifeng Zhu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Xiaoxiao Hu
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Vikramjeet Singh
- Institut des Sciences Moléculaires d׳Orsay, UMR 8214 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay 91400, France
| | - Li Wu
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, China
- Corresponding author. Tel./fax: +86-0-20231980.
| | - Ruxandra Gref
- Institut des Sciences Moléculaires d׳Orsay, UMR 8214 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay 91400, France
- Corresponding author. Tel./fax: +33-0-169158247.
| | - Jiwen Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, China
- Corresponding author. Tel./fax: +86-21-20231980.
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Wehbe N, Patra D, Abdel-Massih RM, Baydoun E. Modulation of membrane properties by silver nanoparticles probed by curcumin embedded in 1,2-Dimyristoyl-sn-glycero-3-phosphocholine liposomes. Colloids Surf B Biointerfaces 2019; 173:94-100. [DOI: 10.1016/j.colsurfb.2018.09.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 11/28/2022]
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17
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Sadeq Al-Namil D, Patra D. Green solid-state based curcumin mediated rhamnolipids stabilized silver nanoparticles: Interaction of silver nanoparticles with cystine and albumins towards fluorescence sensing. Colloids Surf B Biointerfaces 2019; 173:647-653. [DOI: 10.1016/j.colsurfb.2018.10.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/26/2018] [Accepted: 10/13/2018] [Indexed: 12/11/2022]
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Zhang W, Shi H, Chen C, Ren K, Xu Y, Liu X, He L. Curcumin enhances cisplatin sensitivity of human NSCLC cell lines through influencing Cu-Sp1-CTR1 regulatory loop. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 48:51-61. [PMID: 30195880 DOI: 10.1016/j.phymed.2018.04.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/10/2018] [Accepted: 04/22/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Curcumin is a naturally occurring polyphenol which has been demonstrated to possess diverse biological activities. We previously reported that curcumin is a biologically active copper chelator with antitumor activity. Copper transporter 1 (CTR1) on the plasma membrane of eukaryotic cells mediates both copper as well as anticancer drug cisplatin uptake. PURPOSE This study aims to investigate whether curcumin enhances cisplatin sensitivity of human non-small cell lung cancer (NSCLC) through influencing Cu-Sp1-CTR1 regulatory loop. METHODS The combination effect of curcumin and cisplatin on cell proliferation and apoptosis was determined in vitro and in vivo. Platinum level in A549 cells and tumor tissue was measured by atomic absorption spectrometry (AAS). The binding ability of specificity protein 1 (Sp1) to CTR1 and Sp1 promoters was detected by ChIP assay and luciferase reporter assay system. RESULTS Here we show that combined curcumin and cisplatin treatment markedly inhibited A549 cells proliferation and induced its apoptosis. Using a mouse model of A549 xenograft, we demonstrated that curcumin inhibits copper influx and increases uptake of platinum ion in tumor. Curcumin treatment enhances the binding of Sp1 to CTR1 and Sp1 promoters, thus induces CTR1 expression and chemosensitization to cisplatin treatment. This process is regulated by the Cu-Sp1-CTR1 regulatory loop. Moreover, the enhancement mediated by curcumin on cisplatin therapeutic efficacy in cultured human NSCLC cell lines (A549, H460, H1299) was dependent on CTR1. CONCLUSIONS Our results demonstrated copper chelator curcumin enhances the benefits of platinum-containing chemotherapeutic agents and CTR1 could be a promising therapeutic target for non-small cell lung cancer treatment.
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Affiliation(s)
- Wei Zhang
- Department of Pathogen Biology and Immunology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Hengfei Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Medical School, Nanjing University, Nanjing, China
| | - Changmai Chen
- School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Ke Ren
- School of Basic Medical Sciences, Chengdu Medical College, Sichuan, China
| | - Yujun Xu
- State Key Laboratory of Pharmaceutical Biotechnology and Medical School, Nanjing University, Nanjing, China
| | - Xiaoyi Liu
- Department of Pathogen Biology and Immunology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Long He
- Department of Pathogen Biology and Immunology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
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El Kurdi R, Patra D. Capping of supramolecular curcubit[7]uril facilitates formation of Au nanorods during pre-reduction by curcumin. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.05.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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20
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Ferguson JJA, Stojanovski E, MacDonald-Wicks L, Garg ML. Curcumin potentiates cholesterol-lowering effects of phytosterols in hypercholesterolaemic individuals. A randomised controlled trial. Metabolism 2018; 82:22-35. [PMID: 29291429 DOI: 10.1016/j.metabol.2017.12.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/24/2017] [Accepted: 12/08/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Dietary phytosterols (PS) are well-known hypocholesterolaemic agents. Curcumin elicits hypolipidaemic and anti-inflammatory effects in preclinical studies, however, consistent findings in humans are lacking. OBJECTIVE Concurrent PS and curcumin supplementation may exhibit enhanced hypocholesterolaemic and anti-inflammatory effects to optimise cardio-protection. The objective of this trial was to investigate the effects of dietary intervention with PS with or without curcumin on blood lipids (primary outcome) in hypercholesterolaemic individuals. METHODS A double-blinded, randomised, placebo-controlled, 2 × 2 factorial trial was conducted in hypercholesterolaemic individuals. Participants received either placebo (PL, no phytosterols or curcumin), phytosterols (PS, 2 g/d), curcumin (CC, 200 mg/d) or a combination of PS and curcumin (PS-CC, 2 g/d-200 mg/d respectively) for four weeks. Primary outcomes included fasting total cholesterol (TC), LDL-cholesterol, HDL-cholesterol, triglycerides (TG), TC-to-HDL-C ratio (TC:HDL-C). Secondary outcomes included anthropometrics and fasting blood glucose concentrations. RESULTS Seventy participants with a mean (±SEM) fasting TC concentration of 6.57 ± 0.13 mmol/L completed the study (PL, n = 18; PS, n = 17; CC, n = 18; PS-CC, n = 17). PS and PS-CC supplementation significantly lowered TC, LDL-cholesterol and TC:HDL-C post-intervention (p < 0.05). Reductions from baseline in the PS group were 4.8% and 8.1% for TC and LDL-cholesterol respectively (p < 0.05). CC exhibited non-significant reduction (2.3% and 2.6%) in TC and LDL-C respectively, however, the PS-CC resulted in a greater reduction in TC (11.0%) and LDL-cholesterol (14.4%) than either of the treatments alone (p < 0.0001). The reduction in the PS-CC treatment was significantly greater compared to those for CC (p < 0.05) or PL (p < 0.01) alone. Plasma HDL-cholesterol and TG concentrations remained unchanged across all groups. No adverse side effects were reported. CONCLUSIONS The addition of curcumin to phytosterol therapy provides a complementary cholesterol-lowering effect that is larger than phytosterol therapy alone. Implications of these findings include the development of a single functional food containing both the active ingredients for enhanced lipid-lowering and compliance in hypercholesterolaemic individuals. ANZCTR identifier: 1261500095650.
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Affiliation(s)
- Jessica J A Ferguson
- Nutraceuticals Research Program, School of Biomedical Sciences & Pharmacy, 305C Medical Science Building, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Elizabeth Stojanovski
- School of Mathematics and Physical Sciences, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Lesley MacDonald-Wicks
- School of Health Sciences, Faculty of Health & Medicine, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Manohar L Garg
- Nutraceuticals Research Program, School of Biomedical Sciences & Pharmacy, 305C Medical Science Building, University of Newcastle, Callaghan, NSW 2308, Australia.
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Vasudevan S, Prabhune AA. Photophysical studies on curcumin-sophorolipid nanostructures: applications in quorum quenching and imaging. ROYAL SOCIETY OPEN SCIENCE 2018; 5:170865. [PMID: 29515826 PMCID: PMC5830715 DOI: 10.1098/rsos.170865] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 01/04/2018] [Indexed: 05/02/2023]
Abstract
Sophorolipid biosurfactants are biodegradable, less toxic and FDA approved. The purified acidic form of sophorolipid is stimuli-responsive with self-assembling properties and used for solubilizing hydrophobic drugs. This study encapsulated curcumin (CU) with acidic sophorolipid (ASL) micelles and analysed using photophysical studies like UV-visible spectroscopy, photoluminescence (PL) spectroscopy and time-correlated single photon counting (TCSPC). TEM images have revealed ellipsoid micelles of approximately 100 nm size and were confirmed by dynamic light scattering. The bacterial fluorescence uptake studies showed the uptake of formed CUASL nanostructures into both Gram-positive and Gram-negative bacteria. They also showed quorum quenching activity against Pseudomonas aeruginosa. The results have demonstrated this system has potential theranostic applications.
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Affiliation(s)
| | - Asmita A. Prabhune
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi-Bhabha Road, Pune 411008, India
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22
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El Kurdi R, Patra D. The role of OH - in the formation of highly selective gold nanowires at extreme pH: multi-fold enhancement in the rate of the catalytic reduction reaction by gold nanowires. Phys Chem Chem Phys 2018; 19:5077-5090. [PMID: 28134362 DOI: 10.1039/c6cp08607a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a quest to understand the mechanism governing the morphology and geometry control of the particle growth of nanomaterials for their optical and catalytic applications. In the available literature, the role of OH- in dictating the size and shape of Au nanowires is unknown. As one of the first examples, herein, we explore how excess OH- ions in CTAB micelles play a significant role during the highly selective formation of gold nanowires having controlled diameters of ∼20-25 nm and length >1 μm, by reducing Au3+ to Au0 in a one pot, simple synthesis procedure in the presence of Ag+ ions. At pH 4-11, the same procedure does not harvest Au NWs, but Au NPs of diameter 50-70 nm, indicating that excess OH- is needed for nanowire formation. XRD, TGA, DSC, EDX, FT-IR and fluorescence spectroscopic analysis confirm that both CTAB and curcumin act as capping and stabilizing agents for Au NWs as well as Au NPs - there is no remarkable difference in the curcumin/CTAB content between Au NWs and NPs prepared in different pH environments. However, changing the CTAB micellar media to DPPC liposome media inhibits the formation of nanowires at pH ∼13; the growth of the Au NPs diminishes in DPPC liposomes, offering smaller NPs of diameter ∼25 to 30 nm, suggesting that the role of CTAB is necessary in nanowire formation. The rate of NW formation has been found to be 0.13 h-1 and the growth mechanism advocates elongation in the [110] facet of Au [110] as opposed to the [100] or [111] facets. Curcumin capped Au nanowires serve as excellent nano-catalysts for the reduction of nitro-compounds and the rate of reduction of 4-nitrophenol, a model compound, by curcumin capped Au NWs is found to be ∼10 fold higher, compared to Au NPs, which signifies that catalytic activities can be dictated by the size and shape of Au NPs.
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Affiliation(s)
- Riham El Kurdi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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Gómez-Mascaraque LG, Casagrande Sipoli C, de La Torre LG, López-Rubio A. Microencapsulation structures based on protein-coated liposomes obtained through electrospraying for the stabilization and improved bioaccessibility of curcumin. Food Chem 2017; 233:343-350. [DOI: 10.1016/j.foodchem.2017.04.133] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 03/22/2017] [Accepted: 04/20/2017] [Indexed: 01/23/2023]
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Varshney GK, Kintali SR, Das K. Effect of Curcumin Addition on the Adsorption and Transport of a Cationic Dye across DPPG-POPG Liposomes Probed by Second Harmonic Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8302-8310. [PMID: 28742369 DOI: 10.1021/acs.langmuir.7b01783] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effect of addition of curcumin on the adsorption and transport characteristics of a cationic dye, LDS+, across negatively charged bilayers composed of POPG and DPPG lipids were investigated by the interface selective second harmonic (SH) spectroscopic technique. Curcumin induced changes in the SH electric field signal of the LDS+ ions (E2ω (LDS+)) were observed to depend critically on the bilayer acyl chain saturation/unsaturation ratio (S/U). Following earlier works, the increase in the E2ω (LDS+) signal is attributed to the release of the Na+ counterions present in the head group region of the bilayer by curcumin and the decay of the E2ω (LDS+) signal is attributed to the bilayer intercalated state of curcumin. While the changes observed in the E2ω (LDS+) signal in the presence of POPG liposomes were consistent with our earlier study ( Varshney, G. K. et al. Langmuir , 2016 , 32 , 10415 - 10421 ), they were significantly different for DPPG liposomes, following curcumin addition. While the increase in the E2ω (LDS+) signal in the presence of POPG liposomes, is marginal (∼10-20%) and instantaneous (<1 s) followed by a rapid decay (completed within ∼100 s), in the presence of DPPG liposomes it was observed to increase slowly and at saturation shows a substantial increase (100-200%), following curcumin addition. When liposomes consisting of a mixture of POPG and DPPG lipids are used, curcumin induced kinetic characteristics of the E2ω (LDS+) signal showed a mixture of the individual kinetic characteristics observed for the unsaturated (POPG) and saturated (DPPG) liposomes. The observed kinetic trends of the E2ω (LDS+) signal following curcumin addition are explained on the basis of the relative strength of the Na+-POPG and Na+-DPPG interaction. Higher ordering of the lipid acyl chain region in DPPG liposome makes the Na+-DPPG interaction much stronger than the Na+-POPG interaction. Further, it is proposed that, in POPG-DPPG liposomes, individual domains of POPG and DPPG lipids exist at low temperature as suggested by the observed temperature dependent kinetic characteristics of the E2ω (LDS+) signal following curcumin addition. These domains are dependent on the S/U ratio and phase state of the bilayer. The gel phase was observed to be more conducive for individual domain formation. Results presented in this work not only support the notion that biological activity of curcumin is associated with its bilayer altering properties, but more interestingly it provides a qualitative insight about how bilayer phase separation can be achieved by modulating the hydrophobic interactions between the lipid acyl chains.
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Affiliation(s)
- G K Varshney
- Photochem. & Photophys. Appl. Lab, Laser Bio-Medical Applications Section, Raja Ramanna Center for Advanced Technology , Indore, M.P. India 452013
- Homi Bhabha National Institute , Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - S R Kintali
- Photochem. & Photophys. Appl. Lab, Laser Bio-Medical Applications Section, Raja Ramanna Center for Advanced Technology , Indore, M.P. India 452013
- Homi Bhabha National Institute , Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - K Das
- Photochem. & Photophys. Appl. Lab, Laser Bio-Medical Applications Section, Raja Ramanna Center for Advanced Technology , Indore, M.P. India 452013
- Homi Bhabha National Institute , Training School Complex, Anushakti Nagar, Mumbai 400094, India
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25
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Moussa Z, Chebl M, Patra D. Fluorescence of tautomeric forms of curcumin in different pH and biosurfactant rhamnolipids systems: Application towards on-off ratiometric fluorescence temperature sensing. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017. [DOI: 10.1016/j.jphotobiol.2017.06.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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26
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Chebl M, Moussa Z, Peurla M, Patra D. Polyelectrolyte mediated nano hybrid particle as a nano-sensor with outstandingly amplified specificity and sensitivity for enzyme free estimation of cholesterol. Talanta 2017; 169:104-114. [DOI: 10.1016/j.talanta.2017.03.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 02/08/2023]
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27
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Bondì ML, Emma MR, Botto C, Augello G, Azzolina A, Di Gaudio F, Craparo EF, Cavallaro G, Bachvarov D, Cervello M. Biocompatible Lipid Nanoparticles as Carriers To Improve Curcumin Efficacy in Ovarian Cancer Treatment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:1342-1352. [PMID: 28111949 DOI: 10.1021/acs.jafc.6b04409] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Curcumin is a natural molecule with proved anticancer efficacy on several human cancer cell lines. However, its clinical application has been limited due to its poor bioavailability. Nanocarrier-based drug delivery approaches could make curcumin dispersible in aqueous media, thus overtaking the limits of its low solubility. The aim of this study was to increase the bioavailability and the antitumoral activity of curcumin, by entrapping it into nanostructured lipid carriers (NLCs). For this purpose here we describe the preparation and characterization of three kinds of curcumin-loaded NLCs. The nanosystems allowed the achievement of a controlled release of curcumin, the amounts of curcumin released after 24 h from Compritol-Captex, Compritol-Miglyol, and Compritol NLCs being, respectively, equal to 33, 28, and 18% w/w on the total entrapped curcumin. Considering the slower curcumin release profile, Compritol NLCs were chosen to perform successive in vitro studies on ovarian cancer cell lines. The results show that curcumin-loaded NLCs maintain anticancer activity, and reduce cell colony survival more effectively than free curcumin. As an example, the ability of A2780S cells to form colonies was decreased after treatment with 5 μM free curcumin by 50% ± 6, whereas, at the same concentration, the delivery of curcumin with NLC significantly (p < 0.05) inhibited colony formation to approximately 88% ± 1, therefore potentiating the activity of curcumin to inhibit A2780S cell growth. The obtained results clearly suggest that the entrapment of curcumin into NLCs increases curcumin efficacy in vitro, indicating the potential use of NLCs as curcumin delivery systems.
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Affiliation(s)
- Maria Luisa Bondì
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), CNR, U.O.S. Palermo , via Ugo La Malfa, 153, 90146 Palermo, Italy
| | - Maria Rita Emma
- Istituto di Biomedicina ed Immunologia Molecolare (IBIM) "Alberto Monroy", CNR , via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Chiara Botto
- Laboratorio di Polimeri Biocompatibili, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) , Via Archirafi 32, 90123 Palermo, Italy
| | - Giuseppa Augello
- Istituto di Biomedicina ed Immunologia Molecolare (IBIM) "Alberto Monroy", CNR , via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Antonina Azzolina
- Istituto di Biomedicina ed Immunologia Molecolare (IBIM) "Alberto Monroy", CNR , via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Francesca Di Gaudio
- Dipartimento di Biopatologia e Biotecnologie Mediche (DIBIMED), Scuola di Medicina e Chirurgia , via Del Vespro 129, 90127 Palermo, Italy
| | - Emanuela Fabiola Craparo
- Laboratorio di Polimeri Biocompatibili, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) , Via Archirafi 32, 90123 Palermo, Italy
| | - Gennara Cavallaro
- Laboratorio di Polimeri Biocompatibili, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) , Via Archirafi 32, 90123 Palermo, Italy
| | - Dimcho Bachvarov
- Cancer Research Centre, Hôpital L'Hotel-Dieu de Québec, Centre Hospitalier Universitaire de Québec , Quebec City, Quebec, Canada
- Department of Molecular Medicine, Faculty of Medicine, Laval University , Quebec City, Quebec, Canada
| | - Melchiorre Cervello
- Istituto di Biomedicina ed Immunologia Molecolare (IBIM) "Alberto Monroy", CNR , via Ugo La Malfa 153, 90146 Palermo, Italy
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Moussa Z, Chebl M, Patra D. Interaction of curcumin with 1,2-dioctadecanoyl-sn-glycero-3-phosphocholine liposomes: Intercalation of rhamnolipids enhances membrane fluidity, permeability and stability of drug molecule. Colloids Surf B Biointerfaces 2016; 149:30-37. [PMID: 27716529 DOI: 10.1016/j.colsurfb.2016.10.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/31/2016] [Accepted: 10/03/2016] [Indexed: 11/18/2022]
Abstract
Stability of curcumin in neutral and alkaline buffer conditions has been a serious concern for its medicinal applications. We demonstrate that the stability of curucmin can be improved in 1,2-Dioctadecanoyl-sn-glycero-3-phosphocholine (DSPC) liposomes. Curcumin strongly partition into liquid crystalline phase compared to solid gel phase of DSPC liposomes. Variation of fluorescence intensity of curcumin associated with liposomes with temperature successfully determines phase transition temperature of DSPC liposomes. However, at higher molar ratio curcumin can influence phase transition temperature by intercalating into deep hydrophobic layer of liposomes and facilitating fusion of two membrane phases. Rhamnolipids (RLs) are recently being applied for various biomedical applications. Here, we have explored new insight on intercalation of rhamnolipids with DSPC liposomes. Intercalation of rhamnolipids exceptionally increases partition of curcumin into solid gel phase of DSPC liposomes, whereas this increase is moderate in liquid crystalline phase. Fluorescence quenching study establishes that permeability and fluidity of the DSPC liposomes are enhanced in the presence of RLs. Membrane permeability and fluidity can be improved further by increasing the percentage of RLs in DSPC liposomes. The phase transition temperature of DSPC liposomes decreases with increase in percentage of RLs in DSPC liposomes by encouraging fusion between solid gel and liquid crystalline phases. Intercalation of RLs is found to further boost stability of drug, curcumin, in DSPC liposomes. Thus, mixing RLs with DSPC liposomes could potentially serve as a good candidate for drug delivery application.
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Affiliation(s)
- Zeinab Moussa
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Mazhar Chebl
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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Mihono K, Ohtsu T, Ohtani M, Yoshimoto M, Kamimura A. Modulation of cellulase activity by charged lipid bilayers with different acyl chain properties for efficient hydrolysis of ionic liquid-pretreated cellulose. Colloids Surf B Biointerfaces 2016; 146:198-203. [PMID: 27318965 DOI: 10.1016/j.colsurfb.2016.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 01/17/2023]
Abstract
The stability of cellulase activity in the presence of ionic liquids (ILs) is critical for the enzymatic hydrolysis of insoluble cellulose pretreated with ILs. In this work, cellulase was incorporated in the liposomes composed of negatively charged 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol (POPG) and zwitterionic phosphatidylcholines (PCs) with different length and degree of unsaturation of the acyl chains. The liposomal cellulase-catalyzed reaction was performed at 45°C in the acetate buffer solution (pH 4.8) with 2.0g/L CC31 as cellulosic substrate. The crystallinity of CC31 was reduced by treating with 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) at 120°C for 30min. The liposomal cellulase continuously catalyzed hydrolysis of the pretreated CC31 for 48h producing glucose in the presence of 15wt% [Bmim]Cl. The charged lipid membranes were interactive with [Bmim](+), as elucidated by the [Bmim]Cl-induced alterations in fluorescence polarization of the membrane-embedded 1,6-diphenyl-1,3,5-hexatriene (DPH) molecules. The charged membranes offered the microenvironment where inhibitory effects of [Bmim]Cl on the cellulase activity was relieved. The maximum glucose productivity GP of 10.8 mmol-glucose/(hmol-lipid) was obtained at the reaction time of 48h with the cellulase incorporated in the liposomes ([lipid]=5.0mM) composed of 50mol% POPG and 1,2-dilauroyl-sn-glycero-3-phosohocholine (DLPC) with relatively short and saturated acyl chains.
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Affiliation(s)
- Kai Mihono
- Department of Applied Molecular Bioscience, Yamaguchi University, 2-16-1 Tokiwadai, Ube, 755-8611, Japan
| | - Takeshi Ohtsu
- Department of Applied Molecular Bioscience, Yamaguchi University, 2-16-1 Tokiwadai, Ube, 755-8611, Japan
| | - Mai Ohtani
- Department of Applied Molecular Bioscience, Yamaguchi University, 2-16-1 Tokiwadai, Ube, 755-8611, Japan
| | - Makoto Yoshimoto
- Department of Applied Molecular Bioscience, Yamaguchi University, 2-16-1 Tokiwadai, Ube, 755-8611, Japan.
| | - Akio Kamimura
- Department of Applied Molecular Bioscience, Yamaguchi University, 2-16-1 Tokiwadai, Ube, 755-8611, Japan
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Moussa Z, Hmadeh M, Abiad MG, Dib OH, Patra D. Encapsulation of curcumin in cyclodextrin-metal organic frameworks: Dissociation of loaded CD-MOFs enhances stability of curcumin. Food Chem 2016; 212:485-94. [PMID: 27374559 DOI: 10.1016/j.foodchem.2016.06.013] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/10/2016] [Accepted: 06/06/2016] [Indexed: 12/14/2022]
Abstract
Curcumin has been successfully encapsulated in cyclodextrin-metal organic frameworks (CD-MOFs) without altering their crystallinity. The interaction between curcumin and CD-MOFs is strong through hydrogen bond type interaction between the OH group of cyclodextrin of CD-MOFs and the phenolic hydroxyl group of the curcumin. Interestingly, dissolving the curcumin loaded CD-MOFs crystals in water results in formation of a unique complex between curcumin, γCD and potassium cations. In fact, the initial interaction between curcumin and CD-MOF is crucial for the formation of the latter. This new complex formed in alkaline media at pH 11.5 has maximum absorbance at 520nm and emittance at 600nm. Most importantly, the stability of curcumin in this complex was enhanced by at least 3 orders of magnitude compared to free curcumin and curcumin:γ-CD at pH 11.5. These results suggest a promising benign system of CD-MOFs, which can be used to store and stabilize curcumin for food applications.
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Affiliation(s)
- Zeinab Moussa
- Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, P.O. Box 11-0236 Riad El Solh, Beirut 1107-2020, Lebanon
| | - Mohamad Hmadeh
- Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, P.O. Box 11-0236 Riad El Solh, Beirut 1107-2020, Lebanon.
| | - Mohamad G Abiad
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, P.O. Box 11-0236 Riad El Solh, Beirut 1107-2020, Lebanon
| | - Omar H Dib
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, P.O. Box 11-0236 Riad El Solh, Beirut 1107-2020, Lebanon
| | - Digambara Patra
- Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, P.O. Box 11-0236 Riad El Solh, Beirut 1107-2020, Lebanon.
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Moussawi RN, Patra D. Nanoparticle Self-Assembled Grain Like Curcumin Conjugated ZnO: Curcumin Conjugation Enhances Removal of Perylene, Fluoranthene, and Chrysene by ZnO. Sci Rep 2016; 6:24565. [PMID: 27080002 PMCID: PMC4832214 DOI: 10.1038/srep24565] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 03/24/2016] [Indexed: 01/31/2023] Open
Abstract
Curcumin conjugated ZnO, referred as Zn(cur)O, nanostructures have been successfully synthesized, these sub-micro grain-like structures are actually self-assemblies of individual needle-shaped nanoparticles. The nanostructures as synthesized possess the wurtzite hexagonal crystal structure of ZnO and exhibit very good crystalline quality. FT-Raman and TGA analysis establish that Zn(cur)O is different from curcumin anchored ZnO (ZnO@cur), which is prepared by physically adsorbing curcumin on ZnO surfaces. Chemically Zn(cur)O is more stable than ZnO@cur. Diffuse reflectance spectroscopy indicates Zn(cur)O have more impurities compared to ZnO@cur. The solid-state photoluminescence of Zn(cur)O has been investigated, which demonstrates that increase of curcumin concentration in Zn(cur)O suppresses visible emission of ZnO prepared through the same method, this implies filling ZnO defects by curcumin. However, at excitation wavelength 425 nm the emission is dominated by fluorescence from curcumin. The study reveals that Zn(cur)O can remove to a far extent high concentrations of perylene, fluoranthene, and chrysene faster than ZnO. The removal depends on the extent of curcumin conjugation and is found to be faster for PAHs having smaller number of aromatic rings, particularly, it is exceptional for fluoranthene with 93% removal after 10 minutes in the present conditions. The high rate of removal is related to photo-degradation and a mechanism has been proposed.
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Affiliation(s)
- Rasha N Moussawi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
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El Khoury E, Patra D. Length of hydrocarbon chain influences location of curcumin in liposomes: Curcumin as a molecular probe to study ethanol induced interdigitation of liposomes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 158:49-54. [PMID: 26945646 DOI: 10.1016/j.jphotobiol.2016.02.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 02/23/2016] [Indexed: 11/17/2022]
Abstract
Using fluorescence quenching of curcumin in 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) liposomes by brominated derivatives of fatty acids, the location of curcumin has been studied, which indicates length of hydrocarbon chain has an effect on the location of curcumin in liposomes. Change of fluorescence intensity of curcumin with temperature in the presence of liposomes helps to estimate the phase transition temperature of these liposomes, thus, influence of cholesterol on liposome properties has been studied using curcumin as a molecule probe. The cooperativity due to the interactions between the hydrocarbon chains during melting accelerates the phase transition of DPPC liposomes in the presence of high percentage of cholesterol whereas high percentage of cholesterol generates a rather rigid DMPC liposome over a wide range of temperatures. We used ethanol to induce interdigitation between the hydrophobic chains of the lipids and studied this effect using curcumin as fluorescence probe. As a result of interdigitation, curcumin fluorescence is quenched in liposomes. The compact arrangement of the acyl chains prevents curcumin from penetrating deep near the midplane. In the liquid crystalline phase ethanol introduces a kind of order to the more fluid liposome, and does not leave space for curcumin to be inserted away from water.
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Affiliation(s)
- Elsy El Khoury
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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33
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Moussawi RN, Patra D. Modification of nanostructured ZnO surfaces with curcumin: fluorescence-based sensing for arsenic and improving arsenic removal by ZnO. RSC Adv 2016. [DOI: 10.1039/c5ra20221c] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Synthesis of nanostructured zinc oxide surfaces modified with curcumin for fluorescence sensing and removal of arsenic in water.
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Affiliation(s)
| | - Digambara Patra
- Department of Chemistry
- American University of Beirut
- Beirut
- Lebanon
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El Khoury E, Abiad M, Kassaify ZG, Patra D. Green synthesis of curcumin conjugated nanosilver for the applications in nucleic acid sensing and anti-bacterial activity. Colloids Surf B Biointerfaces 2015; 127:274-80. [PMID: 25687098 DOI: 10.1016/j.colsurfb.2015.01.050] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/27/2015] [Accepted: 01/28/2015] [Indexed: 12/11/2022]
Abstract
Silver nanoparticles (Ag NPs) are often synthesized by chemical and physical methods. Natural and non-toxic molecules are recently being replaced for nanoparticles preparation. In this paper we have used curcumin, which interacts with Ag+ and subsequently synthesizes silver nanoparticles. Further continuation of the reaction often makes aggregation and forms dark brown/black silver oxide. Presence of glycerol in the reaction mixture gives mono-disperse curcumin conjugated Ag NPs, which can be made stable by capping with polyvinylpyrolidone (PVP). XRD data confirm that curcumin conjugated Ag NPs are crystalline in nature with a mean crystalline size of 13.27 nm. The Ag NPs are spherical and in the range of 10-50 nm though their hydrodynamic radius is found to be higher, ∼294 nm, due to polyvinylpyrolidone capping and aggregation of nanoparticles in solution. The production of curcumin conjugated Ag NPs follows first order kinetics and the effect of curcumin concentration during formation of Ag NPs indicates a linear enhancement in the production of Ag NPs with an increase in concentration of curcumin. These curcumin conjugated silver nanoparticles show anti-bacterial activity and can successfully determine nucleic acid (DNA and RNA) in the concentration range 100-1000 ng/mL with a linear regression coefficient >0.997 using Resonance Rayleigh Scattering spectra.
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Affiliation(s)
- Elsy El Khoury
- Department of Chemistry, American University of Beirut, Beirut, Lebanon
| | - Mohamad Abiad
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Zeina G Kassaify
- Department of Nutrition and Food Sciences, Faculty of Agricultural and Food Sciences, American University of Beirut, Beirut, Lebanon
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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Application of curcumin nanoparticles in a lab-on-paper device as a simple and green pH probe. Talanta 2015; 131:136-41. [DOI: 10.1016/j.talanta.2014.07.063] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/20/2014] [Accepted: 07/21/2014] [Indexed: 12/19/2022]
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36
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Galletti P, Malferrari D, Samorì C, Sartor G, Tagliavini E. Effects of ionic liquids on membrane fusion and lipid aggregation of egg-PC liposomes. Colloids Surf B Biointerfaces 2014; 125:142-50. [PMID: 25483843 DOI: 10.1016/j.colsurfb.2014.11.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/13/2014] [Accepted: 11/16/2014] [Indexed: 12/01/2022]
Abstract
In this study we have explored the effects of different groups of ionic liquids (ILs) on membrane fusion. The ILs used contain different head groups: N-methylimidazolium, 3-methylpyridinium and N-methylpyrrolidinium; short alkyl or ether functionalized side chains (with one or two ethoxy functionalities), paired with chloride anion. These ILs have been compared with 1-dodecyl-3-methylimidazolium bromide as example of a highly lipophilic IL. The effect of ILs on membrane fusion was investigated through pyrene steady state fluorescence probing, using the IE factor and excimer/monomer ratio (IE/IM) as parameters. The ratio between the vibronic bands of pyrene (I1/I3 ratio) has been used to monitor the effect of ILs on the aggregation properties of egg-PC liposomes. The effect of different ILs' families was evident; the pyridinium ILs induced a greater extent of fusion than pyrrolidinium and imidazolium ILs having the same side chain. Marginal effect could be attributed to different anions. ILs with short alkyl chains were usually more effective than ether functionalized ones. The aggregation behaviors of ILs having dioxygenated chains have been measured in buffer solution.
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Affiliation(s)
- Paola Galletti
- Dipartimento di Chimica "G. Ciamician" Alma Mater Studiorum, Università di Bologna, via Selmi 2, 40126 Bologna, Italy; Centro Interdipartimentale di Ricerca Industriale Energia e Ambiente (CIRI), via S. Alberto 163, 48123 Ravenna, Italy
| | - Danilo Malferrari
- Centro Interdipartimentale di Ricerca Industriale Energia e Ambiente (CIRI), via S. Alberto 163, 48123 Ravenna, Italy.
| | - Chiara Samorì
- Centro Interdipartimentale di Ricerca Industriale Energia e Ambiente (CIRI), via S. Alberto 163, 48123 Ravenna, Italy
| | - Giorgio Sartor
- Centro Interdipartimentale di Ricerca Industriale Energia e Ambiente (CIRI), via S. Alberto 163, 48123 Ravenna, Italy; Dipartimento di Farmacia e Biotecnologie (FaBiT), via Irnerio 48, 40126 Bologna, Italy
| | - Emilio Tagliavini
- Dipartimento di Chimica "G. Ciamician" Alma Mater Studiorum, Università di Bologna, via Selmi 2, 40126 Bologna, Italy; Centro Interdipartimentale di Ricerca Industriale Energia e Ambiente (CIRI), via S. Alberto 163, 48123 Ravenna, Italy
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Xu W, Jin W, Zhang C, Li Z, Lin L, Huang Q, Ye S, Li B. Curcumin loaded and protective system based on complex of κ-carrageenan and lysozyme. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.01.059] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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38
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Mandal S, Ghosh S, Banik D, Banerjee C, Kuchlyan J, Sarkar N. An Investigation into the Effect of the Structure of Bile Salt Aggregates on the Binding Interactions and ESIHT Dynamics of Curcumin: A Photophysical Approach To Probe Bile Salt Aggregates as a Potential Drug Carrier. J Phys Chem B 2013; 117:13795-807. [PMID: 24102639 DOI: 10.1021/jp407824t] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sarthak Mandal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Surajit Ghosh
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Chiranjib Banerjee
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Jagannath Kuchlyan
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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