1
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Virat G, Maiti KK, Amal Raj RB, Gowd EB. Impact of polymer chain packing and crystallization on the emission behavior of curcumin-embedded poly(L-lactide)s. SOFT MATTER 2023; 19:6671-6682. [PMID: 37609667 DOI: 10.1039/d3sm00853c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The development of biodegradable and biocompatible fluorescent materials with tunable emission in the solid state has become increasingly relevant for smart packaging and biomedical applications. Molecular packing and conformations play a critical role in tuning the solid-state photophysical properties of fluorescent materials. In this work, tunable emission of bioactive curcumin was achieved through the manipulation of the crystallization conditions and the polymorphic form of covalently linked poly(L-lactide) in the curcumin-embedded poly(L-lactide) (curcumin-PLLA). In the melt-crystallized curcumin-PLLA, with the increase in the isothermal crystallization temperature, a bathochromic shift in the fluorescence of curcumin-PLLA was observed due to the change in the intramolecular conjugation length of curcumin. The change in the isothermal crystallization temperature of curcumin-PLLA resulted in the rotation of the terminal phenyl rings of curcumin with respect to the central keto-enol group due to the covalently linked helical PLLA chains. In addition, solvent-induced single crystals and a gel of curcumin-PLLA were prepared and the influence of the polymorphic form of PLLA on the emission behavior of curcumin-PLLA was investigated. The results suggest that the polymer chain packing, crystallization conditions, morphology, and polymorphic form could play an influential role in dictating the fluorescence properties of fluorophore-embedded polymers.
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Affiliation(s)
- G Virat
- Materials Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019, Kerala, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Kaustabh Kumar Maiti
- Chemical Sciences and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019, Kerala, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - R B Amal Raj
- Materials Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019, Kerala, India.
| | - E Bhoje Gowd
- Materials Science and Technology Division CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695 019, Kerala, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
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2
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Balafouti A, Pispas S. Hyperbranched Polyelectrolyte Copolymers as Novel Candidate Delivery Systems for Bio-Relevant Compounds. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16031045. [PMID: 36770053 PMCID: PMC9921860 DOI: 10.3390/ma16031045] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/12/2023]
Abstract
In this study, reversible addition-fragmentation chain transfer (RAFT) polymerization is utilized in order to synthesize novel hyperbranched poly(oligoethylene glycol) methyl ether methacrylate-co-tert-butyl methacrylate-co-methacrylic acid) (H-[P(OEGMA-co-tBMA-co-MAA)]) copolymers in combination with selective hydrolysis reactions. The copolymers showing amphiphilicity induced by the polar OEGMA and hydrophobic tBMA monomeric units, and polyelectrolyte character due to MAA units, combined with unique macromolecular architecture were characterized by physicochemical techniques, such as size exclusion chromatography (SEC) and 1H-NMR spectroscopy. The hyperbranched copolymers were investigated in terms of their ability to self-assemble into nanostructures when dissolved in aqueous media. Dynamic light scattering and fluorescence spectroscopy revealed multimolecular aggregates of nanoscale dimensions with low critical aggregation concentration, the size and mass of which depend on copolymer composition and solution conditions, whereas zeta potential measurements indicated pH sensitive features. In addition, aiming to evaluate their potential use as nanocarriers, the copolymers were studied in terms of their drug encapsulation and protein complexation ability utilizing curcumin and lysozyme, as a model hydrophobic drug and a model cationic protein, respectively.
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3
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Buliga DI, Diacon A, Calinescu I, Popa I, Rusen E, Ghebaur A, Tutunaru O, Boscornea CA. Enhancing the light fastness of natural dyes by encapsulation in silica matrix. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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4
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Kadamannil NN, Heo JM, Jang D, Zalk R, Kolusheva S, Zarivach R, Frank GA, Kim JM, Jelinek R. High-Resolution Cryo-Electron Microscopy Reveals the Unique Striated Hollow Structure of Photocatalytic Macrocyclic Polydiacetylene Nanotubes. J Am Chem Soc 2022; 144:17889-17896. [PMID: 36126329 DOI: 10.1021/jacs.2c06710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High-resolution structures are crucial for understanding the functional properties of nanomaterials. We applied single-particle cryo-electron microscopy (cryo-EM), a method traditionally used for structure determination of biological macromolecules, to obtain high-resolution structures of synthetic non-biological filaments formed by photopolymerization of macrocyclic diacetylene (MDA) amphiphilic monomers. Tomographic analysis showed that the MDA monomers self-assemble into hollow nanotubes upon dispersion in water. Single-particle analysis revealed tubes consisting of six pairs of covalently bonded filaments held together by hydrophobic interactions, where each filament is composed of macrocyclic rings stacked in parallel "chair" conformations. The hollow MDA nanotube structures we found may account for the efficient scavenging of amphiphilic pollutants in water and subsequent photodegradation of the guest species.
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Affiliation(s)
| | - Jung-Moo Heo
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Korea
| | - Daewoong Jang
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Korea
| | - Ran Zalk
- Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
| | - Sofiya Kolusheva
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
| | - Raz Zarivach
- Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
| | - Gabriel A Frank
- Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,Department of Life Sciences, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
| | - Jong-Man Kim
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Korea
| | - Raz Jelinek
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel.,Ilse Katz Institute for Nanotechnology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
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5
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Mondal D, Mandal RP, De S. Addressing the Superior Drug Delivery Performance of Bilosomes─A Microscopy and Fluorescence Study. ACS APPLIED BIO MATERIALS 2022; 5:3896-3911. [PMID: 35924346 DOI: 10.1021/acsabm.2c00435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The global health scenario in present times has raised human awareness about drug delivery strategies. Among colloidal drug delivery vehicles, vesicular nanocarriers such as liposomes and niosomes are popular. However, liposomes and niosomes get disrupted in the harsh environment of the gastrointestinal tract. In this context, the drug delivery community has reported the superior performance of vesicles containing bile salts, that is, bilosomes. The present work attempts to examine the structural/morphological aspects underlying the superior performance of bilosomes. Optical microscopy, electron microscopy, and light scattering give a definite proof of the enhanced stability of bilosomes compared to niosomes, both prepared from the same amphiphilic molecule. Fluorescence probing of the vesicles provides detailed insight into the bilayer characteristics and the differences between bilosomes and niosomes. Fluorescence resonance energy transfer studies lend further support to the findings that bilosomes have a more flexible bilayer structure than niosomes. The entrapment efficiency of the vesicles for the well-known antioxidant curcumin (whose bioavailability is a matter of concern due to low water solubility) was also studied. Bilosomes show higher curcumin entrapment efficiency than niosomes. For use in drug delivery, one needs to establish a trade-off between cargo/drug entrapment and release. Thus, a flexible bilayer structure is an advantage.
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Affiliation(s)
- Durga Mondal
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Ranju Prasad Mandal
- Scientist Novel Hair Dyes, Henkel Beauty Care, Henkel AG & Co. KGaA, Henkelstraße 67, 40589 Düsseldorf, Germany
| | - Swati De
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
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6
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Physicochemical Study of Albumin Nanoparticles with Chlorambucil. Processes (Basel) 2022. [DOI: 10.3390/pr10061170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Currently, nanotechnology is considered a promising strategy to enhance drug solubility and other physicochemical properties. Albumin is a biopolymer that can be used in drug delivery systems due to its biodegradability and biocompatibility. The aim of this study was to prepare and characterize albumin nanoparticles with chlorambucil as a controlled drug delivery system. Different concentrations of chlorambucil were incubated with bovine serum albumin (BSA) in order to prepare nanoparticles using the desolvation method. As a result, nanoparticles in sizes ranging from 199.6 to 382.6 nm exhibiting high encapsulation efficiency of chlorambucil were obtained. A spectroscopic study revealed concentration-dependent changes in secondary structure of the albumin chain and in the hydrophobicity of chlorambucil. Based on the results obtained, it was concluded that the investigated structures may be used in the development of a drug delivery system.
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7
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Ionic liquid-based catanionic vesicles: A de novo system to judiciously improve the solubility, stability and antimicrobial activity of curcumin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117396] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Liang F, Wang M, Hu Y, Guo Z, Yang W. Cetyltrimethylammonium bromide promoted dispersing and incorporation of curcumin into silica particles in alkaline ethanol/water mixture. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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9
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Vittala Murthy NT, Paul SK, Chauhan H, Singh S. Polymeric Nanoparticles for Transdermal Delivery of Polyphenols. Curr Drug Deliv 2021; 19:182-191. [PMID: 34288837 DOI: 10.2174/1567201818666210720144851] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 11/22/2022]
Abstract
Polyphenols comprises of a large group of naturally occurring plant secondary metabolites having various nutritional and health benefits. They are safe and are found abundantly in the diet. Current research on polyphenols focuses on their mechanism and their benefits on the human health. However, due to their low solubility and bioavailability, delivery from conventional route has been a challenge and their translation into clinical applications has been limited. Topical and transdermal delivery of polymeric nanoparticles will act as a novel therapeutic approach for promising delivery of polyphenols. In this review, we have evaluated the existing scientific literature and summarized the potential use of polymeric nanoparticles as a carrier for polyphenolic compounds for delivery via topical and transdermal routes for the treatment of skin cancers such as melanoma.
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Affiliation(s)
| | | | - Harsh Chauhan
- Creighton University, Omaha, NE 68178, United States
| | - Somnath Singh
- School of Pharmacy and Health Professionals Creighton University, Omaha, NE 68178, United States
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10
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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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11
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Soto-Quintero A, Guarrotxena N, García O, Quijada-Garrido I. Curcumin to Promote the Synthesis of Silver NPs and their Self-Assembly with a Thermoresponsive Polymer in Core-Shell Nanohybrids. Sci Rep 2019; 9:18187. [PMID: 31796864 PMCID: PMC6890765 DOI: 10.1038/s41598-019-54752-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 11/19/2019] [Indexed: 12/11/2022] Open
Abstract
This work presents a simple one-pot protocol to achieve core-doped shell nanohybrids comprising silver nanoparticles, curcumin and thermoresponsive polymeric shell taking advantage of the reducing properties of phenolic curcumin substance and its ability to decorate metallic surfaces. Silver nanoparticles were synthesized, via sodium citrate and silver nitrate addition into a boiling aqueous solution of curcumin, monomers and surfactant. Curcumin and sodium citrate promoted silver nucleation, acting as reducing and stabilizing agents. These curcumin-capped AgNPs enabled, after adding the radical polymerization initiator, the assembling of the growing polymer chains around the hydrophobic AgNP surface. The resultant core-doped shell nanohybrids exhibit plasmonic, luminescent and volume thermoresponsive properties, with improved possibilities to be used as successful therapeutic platforms. In fact, the possibility to nanoconfine the synergistic antioxidant, antiviral, antibacterial features of silver and curcumin in one bioavailable hybrid paves the way to promising applications in the biomedical field.
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Affiliation(s)
- Albanelly Soto-Quintero
- Instituto de Ciencia y Tecnología de Polímeros. Consejo Superior de Investigaciones Científicas (ICTP-CSIC) c/Juan de la Cierva, 3 E-28006, Madrid, Spain
| | - Nekane Guarrotxena
- Instituto de Ciencia y Tecnología de Polímeros. Consejo Superior de Investigaciones Científicas (ICTP-CSIC) c/Juan de la Cierva, 3 E-28006, Madrid, Spain.
| | - Olga García
- Instituto de Ciencia y Tecnología de Polímeros. Consejo Superior de Investigaciones Científicas (ICTP-CSIC) c/Juan de la Cierva, 3 E-28006, Madrid, Spain
| | - Isabel Quijada-Garrido
- Instituto de Ciencia y Tecnología de Polímeros. Consejo Superior de Investigaciones Científicas (ICTP-CSIC) c/Juan de la Cierva, 3 E-28006, Madrid, Spain.
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12
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Mathew M, Vinod K, Jayaram PS, Jayasree RS, Joseph K. Improved Bioavailability of Curcumin in Gliadin-Protected Gold Quantum Cluster for Targeted Delivery. ACS OMEGA 2019; 4:14169-14178. [PMID: 31508538 PMCID: PMC6732771 DOI: 10.1021/acsomega.9b00917] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/05/2019] [Indexed: 05/13/2023]
Abstract
This study deals with the synthesis of a gliadin-stabilized gold quantum cluster (AuQC) for the encapsulation of curcumin (CUR) and its targeted delivery to the cancer cell. CUR is an anticancer drug containing a hydrophobic polyphenol derived from the rhizome of Curcuma longa. The utilization of CUR in cancer treatment is limited because of suboptimal pharmacokinetics and poor bioavailability at the tumor site. In order to improve the bioavailability of CUR, we have encapsulated it into AuQCs stabilized by a proline-rich protein gliadin because proline-rich protein has the ability to bind a hydrophobic drug CUR. The encapsulation of CUR into the hydrophobic cavity of the protein was confirmed by various spectroscopic techniques. Compared to CUR alone, the encapsulated CUR was stable against degradation and showed higher pH stability up to pH 8.5. The encapsulation efficiency of CUR in AuQCs was calculated as 98%, which was much higher than the other reported methods. In vitro drug release experiment exhibited a controlled and pH-dependent CUR release over a period of 60 h. The encapsulated CUR-QCs exhibited less toxicity in the normal cell line (L929) and high toxicity in breast cancer (MDA-MB239). Thus, it can be used as a potential material for anticancer therapy and bioimaging.
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Affiliation(s)
- Meegle
S. Mathew
- Department
of Chemistry, Indian Institute of Space
Science and Technology, Valiamala, Thiruvananthapuram, Kerala 695547, India
| | - Kavya Vinod
- Department
of Chemistry, Pondicherry University, Pondicherry, Tamilnadu 605014, India
| | - Prasad S. Jayaram
- Division
of Biophotonics and Imaging, Sree Chitra
Tirunal Institute for Medical Sciences and Technology (SCTIMST), Bio-Medical Technology Wing, Trivandrum 695012, India
| | - Ramapurath S. Jayasree
- Division
of Biophotonics and Imaging, Sree Chitra
Tirunal Institute for Medical Sciences and Technology (SCTIMST), Bio-Medical Technology Wing, Trivandrum 695012, India
| | - Kuruvilla Joseph
- Department
of Chemistry, Indian Institute of Space
Science and Technology, Valiamala, Thiruvananthapuram, Kerala 695547, India
- E-mail: . Phone: +914712568632
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13
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Lübtow MM, Marciniak H, Schmiedel A, Roos M, Lambert C, Luxenhofer R. Ultra-High to Ultra-Low Drug-Loaded Micelles: Probing Host-Guest Interactions by Fluorescence Spectroscopy. Chemistry 2019; 25:12601-12610. [PMID: 31291028 PMCID: PMC6790594 DOI: 10.1002/chem.201902619] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Indexed: 12/13/2022]
Abstract
Polymer micelles are an attractive means to solubilize water insoluble compounds such as drugs. Drug loading, formulations stability and control over drug release are crucial factors for drug-loaded polymer micelles. The interactions between the polymeric host and the guest molecules are considered critical to control these factors but typically barely understood. Here, we compare two isomeric polymer micelles, one of which enables ultra-high curcumin loading exceeding 50 wt.%, while the other allows a drug loading of only 25 wt.%. In the low capacity micelles, steady-state fluorescence revealed a very unusual feature of curcumin fluorescence, a high energy emission at 510 nm. Time-resolved fluorescence upconversion showed that the fluorescence life time of the corresponding species is too short in the high-capacity micelles, preventing an observable emission in steady-state. Therefore, contrary to common perception, stronger interactions between host and guest can be detrimental to the drug loading in polymer micelles.
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Affiliation(s)
- Michael M. Lübtow
- Functional Polymer Materials, Chair for Advanced Materials SynthesisDepartment of Chemistry and Pharmacy and Bavarian Polymer InstituteUniversity of WürzburgRöntgenring 1197070WürzburgGermany
| | - Henning Marciniak
- Institute of Organic Chemistry and Center for Nanosystems ChemistryUniversity of WürzburgAm Hubland97070WürzburgGermany
| | - Alexander Schmiedel
- Institute of Organic Chemistry and Center for Nanosystems ChemistryUniversity of WürzburgAm Hubland97070WürzburgGermany
| | - Markus Roos
- Institute of Organic Chemistry and Center for Nanosystems ChemistryUniversity of WürzburgAm Hubland97070WürzburgGermany
| | - Christoph Lambert
- Institute of Organic Chemistry and Center for Nanosystems ChemistryUniversity of WürzburgAm Hubland97070WürzburgGermany
| | - Robert Luxenhofer
- Functional Polymer Materials, Chair for Advanced Materials SynthesisDepartment of Chemistry and Pharmacy and Bavarian Polymer InstituteUniversity of WürzburgRöntgenring 1197070WürzburgGermany
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14
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Effect of casein on pure lecithin liposome: Mixed biomacromolecular system for providing superior stabilization to hydrophobic molecules. Colloids Surf B Biointerfaces 2019; 180:298-305. [DOI: 10.1016/j.colsurfb.2019.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/19/2019] [Accepted: 04/16/2019] [Indexed: 01/26/2023]
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15
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Rohman MA, Sutradhar D, Bangal PR, Chandra AK, Mitra S. Excited State Decay Dynamics in 3‐Formyl‐4‐hydroxy Benzoic Acid: Understanding the Global Picture of an ESIPT‐Driven Multiple‐Emissive Species. ChemistrySelect 2019. [DOI: 10.1002/slct.201901570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mostofa Ataur Rohman
- Centre for Advanced StudiesDepartment of ChemistryNorth-Eastern Hill University Shillong – 793022 India
| | - Dipankar Sutradhar
- Centre for Advanced StudiesDepartment of ChemistryNorth-Eastern Hill University Shillong – 793022 India
| | - Prakriti Ranjan Bangal
- Inorganic & Physical Chemistry DivisionCSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad- 500007, Telangana India
| | - Asit K. Chandra
- Centre for Advanced StudiesDepartment of ChemistryNorth-Eastern Hill University Shillong – 793022 India
| | - Sivaprasad Mitra
- Centre for Advanced StudiesDepartment of ChemistryNorth-Eastern Hill University Shillong – 793022 India
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16
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Jutkova A, Chorvat D, Miskovsky P, Jancura D, Datta S. Encapsulation of anticancer drug curcumin and co-loading with photosensitizer hypericin into lipoproteins investigated by fluorescence resonance energy transfer. Int J Pharm 2019; 564:369-378. [DOI: 10.1016/j.ijpharm.2019.04.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/17/2019] [Accepted: 04/20/2019] [Indexed: 01/19/2023]
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17
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Rani S, Mishra S, Sharma M, Nandy A, Mozumdar S. Solubility and stability enhancement of curcumin in Soluplus® polymeric micelles: a spectroscopic study. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1592687] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Swati Rani
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Sushil Mishra
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Manisha Sharma
- Department of Chemistry, University of Delhi, New Delhi, India
| | - Abhishek Nandy
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Subho Mozumdar
- Department of Chemistry, University of Delhi, New Delhi, India
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18
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Dehghan-Baniani D, Zahedifar P, Bagheri R, Solouk A. Curcumin-Loaded Starch Micro/Nano Particles for Biomedical Application: The Effects of Preparation Parameters on Release Profile. STARCH-STARKE 2019. [DOI: 10.1002/star.201800305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dorsa Dehghan-Baniani
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
- Division of Biomedical Engineering; Department of Chemical and Biological Engineering; The Hong Kong University of Science and Technology; Hong Kong China
| | - Pegah Zahedifar
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
| | - Reza Bagheri
- Polymeric Materials Research Group (PMRG); Department of Materials Science and Engineering; Sharif University of Technology; Tehran P.O. Box 11155-9466 Iran
| | - Atefeh Solouk
- Biomedical Engineering Department; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
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19
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Ilkar Erdagi S, Uyanik C. Biological evaluation of bioavailable amphiphilic polymeric conjugate based-on natural products: diosgenin and curcumin. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1539989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - Cavit Uyanik
- Department of Chemistry, Kocaeli University, Kocaeli, Turkey
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20
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Kareem A, Khan MS, Nami SA, Bhat SA, Mirza AU, Nishat N. Curcumin derived Schiff base ligand and their transition metal complexes: Synthesis, spectral characterization, catalytic potential and biological activity. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Datta S, Jutková A, Šrámková P, Lenkavská L, Huntošová V, Chorvát D, Miškovský P, Jancura D, Kronek J. Unravelling the Excellent Chemical Stability and Bioavailability of Solvent Responsive Curcumin-Loaded 2-Ethyl-2-oxazoline-grad-2-(4-dodecyloxyphenyl)-2-oxazoline Copolymer Nanoparticles for Drug Delivery. Biomacromolecules 2018; 19:2459-2471. [PMID: 29634248 DOI: 10.1021/acs.biomac.8b00057] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new gradient copolymer has been synthesized by the living cationic ring-opening polymerization of hydrophilic 2-ethyl-2-oxazoline with lipophilic 2-(4-dodecyloxyphenyl)-2-oxazoline (EtOx-grad-DPOx). The prepared copolymer is capable of assembling in water to yield polymeric nanoparticles that are successfully loaded with an anticancer agent, curcumin. Self-assembly of the copolymer was found to be tuned by the polarity as well as the hydrogen bonding ability of solvents. Solvent took distinctive role in the preparation of unloaded and curcumin-loaded nanoparticles. The stability of the nanoparticles was increased by curcumin loading promoted by curcumin-polymer interactions. Further, the chemical stability of curcumin in water is largely enhanced inside the polymeric nanoparticles. Curcumin-loaded (EtOx-grad-DPOx) copolymer nanoparticles showed excellent stability in the biological medium, low cytotoxicity, and concentration dependent uptake by U87 MG and HeLa cells, which indicate the possibility of their efficient application in drug delivery.
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Affiliation(s)
- Shubhashis Datta
- Center for Interdisciplinary Biosciences , Technology and Innovation Park, P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Annamária Jutková
- Department of Biophysics, Faculty of Science , P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Petra Šrámková
- Department for Biomaterials Research , Polymer Institute of the Slovak Academy of Sciences , Dúbravská cesta 9 , 845 41 Bratislava , Slovak Republic
| | - Lenka Lenkavská
- Department of Biophysics, Faculty of Science , P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Veronika Huntošová
- Center for Interdisciplinary Biosciences , Technology and Innovation Park, P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Dušan Chorvát
- Laboratory of Laser Microscopy and Spectroscopy , International Laser Centre , Il'kovičova 3 , 841 04 Bratislava 4 , Slovak Republic
| | - Pavol Miškovský
- Center for Interdisciplinary Biosciences , Technology and Innovation Park, P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic.,Department of Biophysics, Faculty of Science , P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Daniel Jancura
- Center for Interdisciplinary Biosciences , Technology and Innovation Park, P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic.,Department of Biophysics, Faculty of Science , P. J. Šafárik University in Košice , Jesenná 5 , 041 54 Košice , Slovak Republic
| | - Juraj Kronek
- Department for Biomaterials Research , Polymer Institute of the Slovak Academy of Sciences , Dúbravská cesta 9 , 845 41 Bratislava , Slovak Republic
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22
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Montalbán MG, Coburn JM, Lozano-Pérez AA, Cenis JL, Víllora G, Kaplan DL. Production of Curcumin-Loaded Silk Fibroin Nanoparticles for Cancer Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E126. [PMID: 29495296 PMCID: PMC5853757 DOI: 10.3390/nano8020126] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 02/16/2018] [Accepted: 02/22/2018] [Indexed: 12/19/2022]
Abstract
Curcumin, extracted from the rhizome of Curcuma longa, has been widely used in medicine for centuries due to its anti-inflammatory, anti-cancer, anti-oxidant and anti-microbial effects. However, its bioavailability during treatments is poor because of its low solubility in water, slow dissolution rate and rapid intestinal metabolism. For these reasons, improving the therapeutic efficiency of curcumin using nanocarriers (e.g., biopolymer nanoparticles) has been a research focus, to foster delivery of the curcumin inside cells due to their small size and large surface area. Silk fibroin from the Bombyx mori silkworm is a biopolymer characterized by its biocompatibility, biodegradability, amphiphilic chemistry, and excellent mechanical properties in various material formats. These features make silk fibroin nanoparticles useful vehicles for delivering therapeutic drugs, such as curcumin. Curcumin-loaded silk fibroin nanoparticles were synthesized using two procedures (physical adsorption and coprecipitation) more scalable than methods previously described using ionic liquids. The results showed that nanoparticle formulations were 155 to 170 nm in diameter with a zeta potential of approximately -45 mV. The curcumin-loaded silk fibroin nanoparticles obtained by both processing methods were cytotoxic to carcinogenic cells, while not decreasing viability of healthy cells. In the case of tumor cells, curcumin-loaded silk fibroin nanoparticles presented higher efficacy in cytotoxicity against neuroblastoma cells than hepatocarcinoma cells. In conclusion, curcumin-loaded silk fibroin nanoparticles constitute a biodegradable and biocompatible delivery system with the potential to treat tumors by local, long-term sustained drug delivery.
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Affiliation(s)
- Mercedes G. Montalbán
- Department of Chemical Engineering, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30071 Murcia, Spain;
| | - Jeannine M. Coburn
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA; (J.M.C.); (D.L.K.)
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - A. Abel Lozano-Pérez
- Department of Biotechnology, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), La Alberca, 30150 Murcia, Spain; (A.A.L.-P.); (J.L.C.)
| | - José L. Cenis
- Department of Biotechnology, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), La Alberca, 30150 Murcia, Spain; (A.A.L.-P.); (J.L.C.)
| | - Gloria Víllora
- Department of Chemical Engineering, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30071 Murcia, Spain;
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA; (J.M.C.); (D.L.K.)
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23
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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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24
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Maiti S, Samanta P, Biswas G, Dhara D. Arm-First Approach toward Cross-Linked Polymers with Hydrophobic Domains via Hypervalent Iodine-Mediated Click Chemistry. ACS OMEGA 2018; 3:562-575. [PMID: 31457914 PMCID: PMC6641402 DOI: 10.1021/acsomega.7b01632] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 12/28/2017] [Indexed: 06/10/2023]
Abstract
In this work, synthesis of two cross-linked polymeric systems through isoxazoline ring formation using nitrile oxide-acrylate click chemistry has been described. In the first system, styrenic block copolymer with oxime-functionalized middle block was synthesized using S,S'-bis(α,α'-dimethyl-α″-acetic acid)trithiocarbonate as chain-transfer agent using reversible addition fragmentation chain-transfer technique. This block copolymer was further utilized to prepare core cross-linked star polymers by reacting with a four-arm acrylic cross-linker by employing environment-friendly, nontoxic PhI(OAc)2-mediated "click reaction" via the formation of isoxazoline ring. In the second system, two linear styrenic block copolymers, one containing oxime and another containing acrylate group, were reacted to form a cross-linked (CS) polymeric system. Formation of cross-linked polymers and isoxazoline ring was confirmed by Fourier transform infrared spectroscopy, gel permeation chromatography, NMR spectroscopy, and dynamic light scattering studies. Later, we also demonstrated that in aqueous medium these CS polymers produced polymeric nanoparticles (NPs), which can be used as potential carriers of hydrophobic drug molecules. The loading capacity of the hydrophobic domains has been investigated using coumarin dyes with varying hydrophobicity through steady-state and time-resolved spectroscopy studies. The polymeric NPs were also shown to successfully encapsulate a hydrophobic drug doxorubicin.
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Affiliation(s)
- Saikat Maiti
- Department of Chemistry, Indian Institute of Technology, Kharagpur, Kharagpur, West Bengal 721302, India
| | - Pousali Samanta
- Department of Chemistry, Indian Institute of Technology, Kharagpur, Kharagpur, West Bengal 721302, India
| | - Gargi Biswas
- Department of Chemistry, Indian Institute of Technology, Kharagpur, Kharagpur, West Bengal 721302, India
| | - Dibakar Dhara
- Department of Chemistry, Indian Institute of Technology, Kharagpur, Kharagpur, West Bengal 721302, India
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25
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Brahmkhatri VP, Sharma N, Sunanda P, D’Souza A, Raghothama S, Atreya HS. Curcumin nanoconjugate inhibits aggregation of N-terminal region (Aβ-16) of an amyloid beta peptide. NEW J CHEM 2018. [DOI: 10.1039/c8nj03541e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A highly stable system of a polymeric nanoparticle-encapsulated curcumin with gold nanoparticles decorated on the surface for inhibition of Aβ1–16 aggregation.
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Affiliation(s)
- Varsha P. Brahmkhatri
- NMR Research Centre
- Indian Institute of Science
- Bangalore 560012
- India
- Centre for Nano and Material Sciences
| | - Naveen Sharma
- Division of Pharmaceutical Science
- Shri Guru Raam Rai Institute of Technology and Science
- Dehradun
- India
| | | | - Aviva D’Souza
- Centre for Nano and Material Sciences
- Jain University
- Jain Global Campus
- Bengaluru 562 112
- India
| | | | - Hanudatta S. Atreya
- NMR Research Centre
- Indian Institute of Science
- Bangalore 560012
- India
- Solid State Structural Chemistry Unit
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26
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Murthy KNC, Monika P, Jayaprakasha GK, Patil BS. Nanoencapsulation: An Advanced Nanotechnological Approach To Enhance the Biological Efficacy of Curcumin. ACS SYMPOSIUM SERIES 2018. [DOI: 10.1021/bk-2018-1286.ch021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- K. N. Chidambara Murthy
- Central Research Laboratory, Ramaiah Medical College & Hospitals, MSR Nagar, MSRIT Post, Bangalore 560 054, India
| | - P. Monika
- Department of Biotechnology, Ramaiah Institute of Technology, MSR Nagar, MSRIT Post, Bangalore 560 054, India
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27
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Panja S, Behera S, Kundu SC, Halder M. Optical Spectroscopic and Morphological Characterizations of Curcuminized Silk Biomaterials: A Perspective from Drug Stabilization. ACS OMEGA 2017; 2:6755-6767. [PMID: 30023531 PMCID: PMC6045347 DOI: 10.1021/acsomega.7b00809] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/30/2017] [Indexed: 06/02/2023]
Abstract
Silk protein fibroins have gained remarkable attention in recent years as a potential drug carrier in the developing medicinal field of research. In this work, the stability of anticancer agent curcumin in the presence of two different silk protein fibroins from nonmulberry Antheraea mylitta (Am) and mulberry Bombyx mori (Bm) has been examined, and the possible mechanism of stabilization in a physiologically relevant medium has also been explored. In solution phase, upon treatment with curcumin, the predominated β-sheet structure of Am is marginally altered, whereas in the case of Bm, a substantial structural changeover has been observed (from coil to β-sheet) to accommodate the hydrophobic drug. Also, the morphological assessments suggest that curcumin is nicely housed in the nanoscaffold of silk fibroin (SF). Consequently, the extent of degradation of curcumin is remarkably suppressed upon encapsulation with the SF. The dissimilarity in the binding patterns of curcumin with these silk proteins could be responsible for the observed difference in the stability orders. Curcumin binds the surface of Bm, whereas in Am, the drug is incorporated in the hydrophobic cavity, and as a consequence, the drug is effectively sequestered out of the aqueous medium. The increase in the fluorescence quantum yield upon interaction with the protein greatly modulates the excited-state intermolecular hydrogen atom transfer (ESIPT) process, which is in tune with a substantial increase in the lifetime of the excited-state of curcumin. The ESIPT is known to play a crucial role in the degradation of curcumin under physiological pH conditions, which perhaps implies its potential therapeutic activity in the presence of silk. The in-depth spectroscopic analyses of curcumin-SF complexes in aqueous medium can provide useful insights for further applicative developments in bioengineering.
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Affiliation(s)
- Sudipta Panja
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Sibaram Behera
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Subhas C. Kundu
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Mintu Halder
- Department
of Chemistry and Department of Biotechnology, Indian Institute
of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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28
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Niskanen J, Vapaavuori J, Pellerin C, Winnik FM, Tenhu H. Polysulfobetaine-surfactant solutions and their use in stabilizing hydrophobic compounds in saline solution. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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29
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Nie J, Li N, Ni Z, Zhao Y, Zhang L. A sensitive tetraphenylethene-based fluorescent probe for Zn 2+ ion involving ESIPT and CHEF processes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.04.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Jadhav MM, Rhyman L, Ramasami P, Sekar N. Unfolding ESIPT in Bis-2,5-(2-benzoxazolyl) Hydroquinone and 2,5-Bis(benzo[d]oxazol-2-yl)-4-methoxyphenol: a Comprehensive Computational Approach. J Fluoresc 2016; 26:1295-307. [PMID: 27147227 DOI: 10.1007/s10895-016-1816-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 04/26/2016] [Indexed: 11/30/2022]
Abstract
The photo-physical behaviour of bis-2,5-(2-benzoxazolyl) hydroquinone and 2,5-bis (benzo[d]oxazol-2-yl)-4-methoxyphenol was studied using the Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT). All the possible rotamers were optimized to obtain global minimum optimized structure. The theoretical absorption and emission values of rotamers estimated by using TD-DFT [TD-B3LYP/6-31G(d)] are in good agreement with experimental absorption and emission wavelengths. Based on the absorption values, the contribution of respective rotamer is determined theoretically.
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Affiliation(s)
- Manoj M Jadhav
- Tinctorial Chemistry Group, Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Matunga, Mumbai, Maharashtra, 400019, India
| | - Lydia Rhyman
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, 80837, Mauritius
| | - Ponnadurai Ramasami
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, 80837, Mauritius.
| | - Nagaiyan Sekar
- Tinctorial Chemistry Group, Department of Dyestuff Technology, Institute of Chemical Technology, N. P. Marg, Matunga, Mumbai, Maharashtra, 400019, India.
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31
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Mondal S, Ghosh S, Moulik SP. Stability of curcumin in different solvent and solution media: UV–visible and steady-state fluorescence spectral study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 158:212-8. [DOI: 10.1016/j.jphotobiol.2016.03.004] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 03/01/2016] [Accepted: 03/03/2016] [Indexed: 12/30/2022]
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32
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Ganeshkumar M, Ponrasu T, Subamekala MK, Janani M, Suguna L. Curcumin loaded on pullulan acetate nanoparticles protects the liver from damage induced by DEN. RSC Adv 2016. [DOI: 10.1039/c5ra18989f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Curcumin loaded nanoparticles protect liver from damage induced by DEN.
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Affiliation(s)
- Moorthy Ganeshkumar
- Department of Biochemistry
- CSIR-Central Leather Research Institute
- Council of Scientific and Industrial Research
- Chennai 600020
- India
| | - Thangavel Ponrasu
- Department of Biochemistry
- CSIR-Central Leather Research Institute
- Council of Scientific and Industrial Research
- Chennai 600020
- India
| | | | - Murthy Janani
- Department of Biopharmaceutics
- Anna University
- Chennai
- India
| | - Lonchin Suguna
- Department of Biochemistry
- CSIR-Central Leather Research Institute
- Council of Scientific and Industrial Research
- Chennai 600020
- India
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33
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Sarkar I. Monitoring thermo-reversible dehydration of the pluronic microenvironment using 4-chloro-1-naphthol as an ESPT fluorescent molecular probe. NEW J CHEM 2016. [DOI: 10.1039/c5nj03354c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ESPT fluorescent molecular probe, 4-chloro-1-naphthol, has been employed to study the thermo-reversible sol–gel transition, dehydration and micro-polarity of pluronics.
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Affiliation(s)
- Ivy Sarkar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
- India
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34
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Photophysical characterization of anticancer drug valrubicin in rHDL nanoparticles and its use as an imaging agent. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 155:60-5. [PMID: 26735001 DOI: 10.1016/j.jphotobiol.2015.12.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 12/08/2015] [Accepted: 12/14/2015] [Indexed: 11/23/2022]
Abstract
Nanoparticles are target-specific drug delivery agents that are increasingly used in cancer therapy to enhance bioavailability and to reduce off target toxicity of anti-cancer agents. Valrubicin is an anti-cancer drug, currently approved only for vesicular bladder cancer treatment because of its poor water solubility. On the other hand, valrubicin carrying reconstituted high density lipoprotein (rHDL) nanoparticles appear ideally suited for extended applications, including systemic cancer chemotherapy. We determined selected fluorescence properties of the free (unencapsulated) drug vs. valrubicin incorporated into rHDL nanoparticles. We have found that upon encapsulation into rHDL nanoparticles the quantum yield of valrubicin fluorescence increased six fold while its fluorescence lifetime increased about 2 fold. Accordingly, these and potassium iodide (KI) quenching data suggest that upon incorporation, valrubicin is localized deep in the interior of the nanoparticle, inside the lipid matrix. Fluorescence anisotropy of the rHDL valrubicin nanoparticles was also found to be high along with extended rotational correlation time. The fluorescence of valrubicin could also be utilized to assess its distribution upon delivery to prostate cancer (PC3) cells. Overall the fluorescence properties of the rHDL: valrubicin complex reveal valuable novel characteristics of this drug delivery vehicle that may be particularly applicable when used in systemic (intravenous) therapy.
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35
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Bagchi D, Chaudhuri S, Sardar S, Choudhury S, Polley N, Lemmens P, Pal SK. Modulation of stability and functionality of a phyto-antioxidant by weakly interacting metal ions: curcumin in aqueous solution. RSC Adv 2015. [DOI: 10.1039/c5ra21593e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Metal exchange process in metallo–curcumin leading to duality in action: enhancement of both aqueous stability and anti-oxidant property.
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Affiliation(s)
- Damayanti Bagchi
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Siddhi Chaudhuri
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Samim Sardar
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Susobhan Choudhury
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Nabarun Polley
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
| | - Peter Lemmens
- Institute for Condensed Matter Physics
- TU Braunschweig
- 38106 Braunschweig
- Germany
- Laboratory for Emerging Nanometrology
| | - Samir Kumar Pal
- Department of Chemical
- Biological and Macromolecular Sciences
- S. N. Bose National Centre for Basic Sciences
- Kolkata 700 098
- India
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