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Szczęsna-Górniak W, Weżgowiec J, Tsirigotis-Maniecka M, Szyk-Warszyńska L, Michna A, Warszyński P, Saczko J, Wilk KA. Physicochemical Features and Applicability of Newly Fabricated Phytopharmaceutical-Loaded Hydrogel Alginate Microcarriers with Viscoelastic Polyelectrolyte Coatings. Chemphyschem 2024; 25:e202300758. [PMID: 38116981 DOI: 10.1002/cphc.202300758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023]
Abstract
The design of novel polymeric carrier systems with functional coatings is of great interest for delivering various bioactive molecules. Microcapsules coated with polyelectrolyte (PE) films provide additional functionality and fine-tuning advantages essential for controlled drug release. We developed hydrogel microcarriers coated with functional PE films with encapsulated substances of natural origin, resveratrol (RES), curcumin (CUR), and epigallocatechin gallate (EGCG), which have cytotoxic and chemopreventive properties. Alginate (ALG) based microparticles were loaded with phytopharmaceuticals using the emulsification method, and then their surface was modified with PE coatings, such as chitosan (CHIT) or poly(allylamine hydrochloride) (PAH). The morphology and mean diameter of microcarriers were characterised by scanning electron microscopy, encapsulation efficiency was determined by UV-Vis spectroscopy, whereas the physicochemical properties of functional PE layers were studied using quartz crystal microbalance with dissipation monitoring and streaming potential measurements. The release profiles of active compounds from the hydrogel microparticles were described using the Peppas-Sahlin model. The cytotoxic effect of designed delivery systems was studied by evaluating their impact on the proliferation, mitochondrial metabolic function, and lipid peroxidation level of 5637 human bladder cancer cells. The present work demonstrates that the physicochemical and biological features of fabricated microcarriers can be controlled by the type of encapsulated anti-cancer agent and PE coating.
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Affiliation(s)
- Weronika Szczęsna-Górniak
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Joanna Weżgowiec
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425, Wroclaw, Poland
| | - Marta Tsirigotis-Maniecka
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Lilianna Szyk-Warszyńska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239, Krakow, Poland
| | - Aneta Michna
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239, Krakow, Poland
| | - Piotr Warszyński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239, Krakow, Poland
| | - Jolanta Saczko
- Department of Molecular and Cellular Biology, Wroclaw Medical University, 50-556, Wroclaw, Poland
| | - Kazimiera A Wilk
- Department of Engineering and Technology of Chemical Processes, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
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Joseph DP, Rajchakit U, Pilkington LI, Sarojini V, Barker D. Synthesis and antibacterial analysis of C-6 amino-functionalised chitosan derivatives. Int J Biol Macromol 2023; 240:124278. [PMID: 37004934 DOI: 10.1016/j.ijbiomac.2023.124278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/08/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Synthesis of 6-O-(3-alkylamino-2-hydroxypropyl) derivatives of chitosan was achieved using a four-step strategy of N-protection, O-epoxide addition, epoxide ring opening using an amine and N-deprotection. Benzaldehyde and phthalic anhydride were used for the N-protection step, producing N-benzylidene and N-phthaloyl protected derivatives, respectively, resulting in two corresponding final 6-O-(3-alkylamino-2-hydroxypropyl) derivative series, BD1-BD6 and PD1-PD14. All the compounds were characterized using FTIR, XPS and PXRD studies and tested for antibacterial efficacy. The phthalimide protection strategy was found to be easier to apply and effective in terms of the synthetic process and improvement in antibacterial activity. Amongst the newly synthesized compounds, PD13 (6-O-(3-(2-(N,N-dimethylamino)ethylamino)-2-hydroxypropyl)chitosan) was the most active with eight times greater activity compared to the unmodified chitosan and, PD7 6-O-(3-(3-(N-(3-aminopropyl)propane-1,3-diamino)propylamino)-2-hydroxypropyl)chitosan) having a four-fold activity than chitosan, was found to be the second most potent derivative. This work has produced new chitosan derivatives those are more potent than chitosan itself and show promise in antimicrobial applications.
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Chen Y, Liu W, Leng X, Stoll S. Toxicity of selenium nanoparticles on Poterioochromonas malhamensis algae in Waris-H culture medium and Lake Geneva water: Effect of nanoparticle coating, dissolution, and aggregation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152010. [PMID: 34856254 DOI: 10.1016/j.scitotenv.2021.152010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
Understanding the algal toxicity of selenium nanoparticles (SeNPs) in aquatic systems by considering SeNPs physicochemical properties and environmental media characteristics is a concern of high importance for the evaluation and prediction of risk assessment. In this study, chitosan (CS) and sodium carboxymethyl cellulose (CMC) coated SeNPs are considered using Lake Geneva water and a Waris-H cell culture medium to investigate the effect of SeNPs on the toxicity of algae Poterioochromonas malhamensis, a widespread mixotrophic flagellate. The influence of surface coating, z-average diameters, ζ-potentials, aggregation behavior, ions release, and medium properties on the toxicity of SeNPs to algae P. malhamensi was investigated. It is found that SeNPs are 5-10 times more toxic in Lake Geneva water compared to the culture medium, suggesting that the traditional algal tests in Waris-H culture medium currently underestimate the toxicity of NPs in a natural water environment. Despite significant dissolution, it is also found that SeNPs themselves are the toxicity driver, and dissolved ions have only a marginal influence on toxicity. SeNPs diameter is found a minor factor in toxicity. Based on a principal component analysis (PCA) it is found that in Lake Geneva water, the nature of the surface coating (CMC versus CS) is the most influential factor controlling the toxicity of SeNPs. In the culture medium, surface coating, ζ-potential, and aggregation are found to contribute at the same level. These results highlight the importance of considering in details both NPs intrinsic and media properties in the evaluation of NPs biological effects.
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Affiliation(s)
- Yuying Chen
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wei Liu
- Department F.A. Forel for Environmental and Aquatic Sciences, Section of Earth and Environmental Sciences and Institute for Environmental Sciences, University of Geneva, Carl-Vogt 66, CH-1211 Geneva, Switzerland.
| | - Xiaojing Leng
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Serge Stoll
- Department F.A. Forel for Environmental and Aquatic Sciences, Section of Earth and Environmental Sciences and Institute for Environmental Sciences, University of Geneva, Carl-Vogt 66, CH-1211 Geneva, Switzerland.
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Gupta R, Kumari J, Pati S, Singh S, Mishra M, Ghosh SK. Interaction of cyclotide Kalata B1 protein with model cellular membranes of varied electrostatics. Int J Biol Macromol 2021; 191:852-860. [PMID: 34592223 DOI: 10.1016/j.ijbiomac.2021.09.147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/27/2022]
Abstract
A uni-molecular layer of lipids at air-water interface mimicking one of the leaflets of the cellular membrane provides a simple model to understand the interaction of any foreign molecules with the membrane. Here, the interactions of protein Kalata B1 (KB1) of cyclotide family with the phospholipids 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC), 1,2-dipalmitoyl-sn-glycero-3-phospho-rac-(1-glycerol) sodium salt (DPPG), and 1,2-distearoyl-sn-glycero-3-ethylphosphocholine chloride salt (DSEPC) have been investigated. The addition of KB1 induces a change in pressure of the lipid monolayers. The characteristic time of the change in pressure is found to be dependent on the electrostatic nature of the lipid. Even though the protein is weakly surface active, it is capable of modifying the phase behavior and elastic properties of lipid monolayers with differences in their strength and nature making the layers more floppy. The KB1-lipid interaction has been quantified by calculating the excess Gibb's free energy of interaction and the 1-anilino-8-naphthalenesulfonate (ANS) binding studies. The interaction with zwitterionic DPPC and negatively charged DPPG lipids are found to be thermodynamically favorable whereas the protein shows a weaker response to positively charged DSEPC lipid. Therefore, the long ranged electrostatic is the initial driving force for the KB1 to recognize and subsequently attach to a cellular membrane. Thereafter, the hydrophobic region of the protein may penetrate into the hydrophobic core of the membrane via specific amino acid residues.
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Affiliation(s)
- Ritika Gupta
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India
| | - Jyoti Kumari
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India
| | - Soumya Pati
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India
| | - Shailja Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru university, New Delhi 110067, India
| | - Manasi Mishra
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India.
| | - Sajal K Ghosh
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India.
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Gorshkova Y, Barbinta-Patrascu ME, Bokuchava G, Badea N, Ungureanu C, Lazea-Stoyanova A, Răileanu M, Bacalum M, Turchenko V, Zhigunov A, Juszyńska-Gałązka E. Biological Performances of Plasmonic Biohybrids Based on Phyto-Silver/Silver Chloride Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1811. [PMID: 34361197 PMCID: PMC8308221 DOI: 10.3390/nano11071811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/26/2022]
Abstract
Silver/silver chloride nanoparticles (Ag/AgClNPs), with a mean size of 48.2 ± 9.5 nm and a zeta potential value of -31.1 ± 1.9 mV, obtained by the Green Chemistry approach from a mixture of nettle and grape extracts, were used as "building blocks" for the "green" development of plasmonic biohybrids containing biomimetic membranes and chitosan. The mechanism of biohybrid formation was elucidated by optical analyses (UV-vis absorption and emission fluorescence, FTIR, XRD, and SAXS) and microscopic techniques (AFM and SEM). The aforementioned novel materials showed a free radical scavenging capacity of 75% and excellent antimicrobial properties against Escherichia coli (IGZ = 45 mm) and Staphylococcus aureus (IGZ = 35 mm). The antiproliferative activity of biohybrids was highlighted by a therapeutic index value of 1.30 for HT-29 cancer cells and 1.77 for HepG2 cancer cells. At concentrations below 102.2 µM, these materials are not hemolytic, so they will not be harmful when found in the bloodstream. In conclusion, hybrid systems based on phyto-Ag/AgClNPs, artificial cell membranes, and chitosan can be considered potential adjuvants in liver and colorectal cancer treatment.
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Affiliation(s)
- Yulia Gorshkova
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Joliot-Curie, 6, 141980 Dubna, Russia; (Y.G.); (G.B.); (V.T.)
- Institute of Physics, Kazan Federal University, 16a Kremlyovskaya Street, 420008 Kazan, Russia
| | - Marcela-Elisabeta Barbinta-Patrascu
- Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Magurele, Romania;
| | - Gizo Bokuchava
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Joliot-Curie, 6, 141980 Dubna, Russia; (Y.G.); (G.B.); (V.T.)
| | - Nicoleta Badea
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University “Politehnica” of Bucharest, 1-7, Polizu Street, 011061 Bucharest, Romania; (N.B.); (C.U.)
| | - Camelia Ungureanu
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University “Politehnica” of Bucharest, 1-7, Polizu Street, 011061 Bucharest, Romania; (N.B.); (C.U.)
| | - Andrada Lazea-Stoyanova
- National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania;
| | - Mina Răileanu
- Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, 077125 Magurele, Romania;
- Department of Life and Environmental Physics, Institute for Physics and Nuclear Engineering, Horia Hulubei National, Reactorului, 30, 077125 Magurele, Romania;
| | - Mihaela Bacalum
- Department of Life and Environmental Physics, Institute for Physics and Nuclear Engineering, Horia Hulubei National, Reactorului, 30, 077125 Magurele, Romania;
| | - Vitaly Turchenko
- Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Joliot-Curie, 6, 141980 Dubna, Russia; (Y.G.); (G.B.); (V.T.)
- Department of Crystal Growth Laboratory, South Ural State University, 76, Lenin Aven., 454080 Chelyabinsk, Russia
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry AS CR, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic;
| | - Ewa Juszyńska-Gałązka
- Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Krakow, Poland;
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Discerning perturbed assembly of lipids in a model membrane in presence of violacein. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183647. [PMID: 33989532 DOI: 10.1016/j.bbamem.2021.183647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 05/01/2021] [Accepted: 05/07/2021] [Indexed: 12/13/2022]
Abstract
Violacein is a naturally found pigment that is used by some gram negative bacteria to defend themselves from various gram positive bacteria. As a result, this molecule has caught attention for its potential biomedical applications and has already shown promising outcomes as an antiviral, an antibacterial, and an anti-tumor agent. Understanding the interaction of this molecule with a cellular membrane is an essential step to extend its use in the pharmaceutical paradigm. Here, the interaction of violacein with a lipid monolayer formed at the air-water interface is found to depend on electrostatic nature of lipids. In presence of violacein, the two dimensional (2D) pressure-area isotherms of lipids have exhibited changes in their phase transition pressure and in-plane elasticity. To gain insights into the out-of-plane structural organization of lipids in a membrane, X-ray reflectivity (XRR) study on a solid supported lipid monolayer on a hydrophilic substrate has been performed. It has revealed that the increase in membrane thickness is more pronounced in the zwitterionic and positively charged lipids compared to the negatively charged one. Further, the lipid molecules are observed to decrease their tilt angle made with the normal of lipid membrane along with an alteration in their in-plane ordering. This has been quantified by grazing incidence X-ray diffraction (GIXD) experiments on the multilayer membrane formed in an environment with controlled humidity. The structural reorganization of lipid molecules in presence of violacein can be utilized to provide a detailed mechanism of the interaction of this molecule with cellular membrane.
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Islan GA, Gonçalves LMD, Marto J, Duarte A, Alvarez VA, Castro GR, Almeida AJ. Effect of α-tocopherol on the physicochemical, antioxidant and antibacterial properties of levofloxacin loaded hybrid lipid nanocarriers. NEW J CHEM 2021. [DOI: 10.1039/d0nj03781h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-toxic hybrid lipidic nanoparticles become a promising tool for enhanced lung delivery of levofloxacin in combination with antioxidant properties.
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Affiliation(s)
- Germán A. Islan
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata (UNLP) – CONICET (CCT La Plata)
| | - Lídia M. D. Gonçalves
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisbon
- Portugal
| | - Joana Marto
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisbon
- Portugal
| | - Aida Duarte
- Laboratory of Microbiology
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisbon
- Portugal
| | - Vera A. Alvarez
- Grupo de Materiales Compuestos de Matriz Polimérica (CoMP)
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA)
- Facultad de Ingeniería
- Universidad Nacional de Mar del Plata (UNMDP) – CONICET
- Buenos Aires
| | - Guillermo R. Castro
- Laboratorio de Nanobiomateriales
- CINDEFI
- Departamento de Química
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata (UNLP) – CONICET (CCT La Plata)
| | - António J. Almeida
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisbon
- Portugal
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Pereira AR, Fiamingo A, de O. Pedro R, Campana-Filho SP, Miranda PB, Oliveira ON. Enhanced chitosan effects on cell membrane models made with lipid raft monolayers. Colloids Surf B Biointerfaces 2020; 193:111017. [DOI: 10.1016/j.colsurfb.2020.111017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/12/2022]
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Uehara TM, Cancino-Bernardi J, Miranda PB, Zucolotto V. Investigating the interactions of corona-free SWCNTs and cell membrane models using sum-frequency generation. SOFT MATTER 2020; 16:5711-5717. [PMID: 32525195 DOI: 10.1039/d0sm00256a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The understanding of the interactions between biomolecules and nanomaterials is of great importance in many areas of nanomedicine and bioapplications. Numerous studies in this area have been performed. However, toxicological aspects involving the interaction between phospholipids and carbon nanotubes (CNTs) remain undefined, especially for those cases in which a protein corona is not formed around the nanomaterial (corona-free nanomaterials). This study focuses on the interaction of Langmuir films of dipalmitoylphosphatidylglycerol (DPPG) and dipalmitoylphosphatidylcholine (DPPC) with corona-free, single-walled CNTs. Surface pressure-area isotherms and sum-frequency generation (SFG) vibrational spectroscopy, a non-linear optical technique used to study surfaces and interfaces, were used to investigate the lipid tail orientation and conformation, aiming to understand the interactions between phospholipids and single walled carbon nanotubes functionalized by carboxylic acid (SWCNTs-COOH) at the air-water interface under low ionic strength conditions. Data from isotherms and SFG spectra revealed that the SWCNT adsorption at the air-water interface is induced by the presence of both lipids, although at a lesser extent for DPPG due to its anionic head group, which could result in repulsion of SWCNTs-COOH that also bear a negative charge. Furthermore, lipid monolayers remained conformationally ordered, indicating insertion of SWCNTs into the lipid monolayer. Our results corroborate previous works and simulations in the literature, but made it possible to perform an in-depth investigation of the interaction of these nanomaterials with components of phospholipid membranes.
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Affiliation(s)
- Thiers Massami Uehara
- Nanomedicine and Nanotoxicology Group, University of São Paulo, CP 369, São Carlos, São Paulo 13560-970, Brazil.
| | - Juliana Cancino-Bernardi
- Nanomedicine and Nanotoxicology Group, University of São Paulo, CP 369, São Carlos, São Paulo 13560-970, Brazil.
| | - Paulo Barbeitas Miranda
- Polymer Group "Prof. Bernhard Gross", Physics Institute of São Carlos, University of São Paulo, CP 369, São Carlos, São Paulo 13560-970, Brazil
| | - Valtencir Zucolotto
- Nanomedicine and Nanotoxicology Group, University of São Paulo, CP 369, São Carlos, São Paulo 13560-970, Brazil.
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Krywko-Cendrowska A, di Leone S, Bina M, Yorulmaz-Avsar S, Palivan CG, Meier W. Recent Advances in Hybrid Biomimetic Polymer-Based Films: from Assembly to Applications. Polymers (Basel) 2020; 12:E1003. [PMID: 32357541 PMCID: PMC7285097 DOI: 10.3390/polym12051003] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 12/21/2022] Open
Abstract
Biological membranes, in addition to being a cell boundary, can host a variety of proteins that are involved in different biological functions, including selective nutrient transport, signal transduction, inter- and intra-cellular communication, and cell-cell recognition. Due to their extreme complexity, there has been an increasing interest in developing model membrane systems of controlled properties based on combinations of polymers and different biomacromolecules, i.e., polymer-based hybrid films. In this review, we have highlighted recent advances in the development and applications of hybrid biomimetic planar systems based on different polymeric species. We have focused in particular on hybrid films based on (i) polyelectrolytes, (ii) polymer brushes, as well as (iii) tethers and cushions formed from synthetic polymers, and (iv) block copolymers and their combinations with biomacromolecules, such as lipids, proteins, enzymes, biopolymers, and chosen nanoparticles. In this respect, multiple approaches to the synthesis, characterization, and processing of such hybrid films have been presented. The review has further exemplified their bioengineering, biomedical, and environmental applications, in dependence on the composition and properties of the respective hybrids. We believed that this comprehensive review would be of interest to both the specialists in the field of biomimicry as well as persons entering the field.
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Affiliation(s)
| | | | | | | | - Cornelia G. Palivan
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, 4058 Basel, Switzerland; (A.K.-C.); (S.d.L.); (M.B.); (S.Y.-A.)
| | - Wolfgang Meier
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, 4058 Basel, Switzerland; (A.K.-C.); (S.d.L.); (M.B.); (S.Y.-A.)
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11
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Eicher AC, Dobler D, Kiselmann C, Schmidts T, Runkel F. Dermal delivery of therapeutic DNAzymes via chitosan hydrogels. Int J Pharm 2019; 563:208-216. [DOI: 10.1016/j.ijpharm.2019.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/07/2019] [Accepted: 04/02/2019] [Indexed: 10/27/2022]
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12
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Ładniak A, Jurak M, Wiącek AE. Langmuir monolayer study of phospholipid DPPC on the titanium dioxide–chitosan–hyaluronic acid subphases. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00037-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Pavinatto A, Delezuk JA, Souza AL, Pavinatto FJ, Volpati D, Miranda PB, Campana-Filho SP, Oliveira Jr. ON. Experimental evidence for the mode of action based on electrostatic and hydrophobic forces to explain interaction between chitosans and phospholipid Langmuir monolayers. Colloids Surf B Biointerfaces 2016; 145:201-207. [DOI: 10.1016/j.colsurfb.2016.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/22/2016] [Accepted: 05/01/2016] [Indexed: 11/28/2022]
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14
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Decoration of gemini alkyl O-glucosides based vesicles by electrostatic deposition of sodium carboxymethyl cellullose: Mechanism, structure and improved stability. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Ren Y, Xie H, Liu X, Yang F, Yu W, Ma X. Tuning the formation and stability of microcapsules by environmental conditions and chitosan structure. Int J Biol Macromol 2016; 91:1090-100. [PMID: 27344950 DOI: 10.1016/j.ijbiomac.2016.06.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/24/2016] [Accepted: 06/12/2016] [Indexed: 01/23/2023]
Abstract
The goal of this work is to tune the formation and stability of the alginate-chitosan (AC) polyelectrolyte complexes (PECs) and microcapsules. Particularly, we explore the role of the conformation of chitosan on its interaction with alginate to understand the mechanism underpinning their interactions at the molecular level. Reducing the charge density by increasing pH will increase the compactness of chitosan, the values of the enthalpy (H) and stoichiometry (N) of binding between chitosan and alginate. Consequently, chitosan has advantage in being adsorbed on alginate beads to form microcapsules, including the binding rate and binding amount. Though the total heat release remain similar in the range of ionic strength, chitosan diffuses much easier into alginate hydrogels when in higher ionic strength. Increasing pH and ionic strength both help AC microcapsules to have higher stability. The results indicate that the formation and stability of AC microcapsules are related to the rigidity and conformations of chitosan molecules. After increasing acetylation degree (DA) of chitosan, the binding rate of chitosan and mechanical strength of AC microcapsules are both reduced. This work demonstrates the versatility and feasibility of tuning the formation and stability of polysaccharide microcapsules by physical factors and chitosan chemical structures.
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Affiliation(s)
- Ying Ren
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongguo Xie
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Xiaocen Liu
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Yang
- Energy Research Resources Division, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Weiting Yu
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Xiaojun Ma
- Laboratory of Biomedical Material Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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16
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Follmann HD, Martins AF, Nobre TM, Bresolin JD, Cellet TS, Valderrama P, Correa DS, Muniz EC, Oliveira ON. Extent of shielding by counterions determines the bactericidal activity of N,N,N-trimethyl chitosan salts. Carbohydr Polym 2016; 137:418-425. [DOI: 10.1016/j.carbpol.2015.10.083] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/07/2015] [Accepted: 10/26/2015] [Indexed: 11/27/2022]
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17
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Elnaggar YSR, Etman SM, Abdelmonsif DA, Abdallah OY. Intranasal Piperine-Loaded Chitosan Nanoparticles as Brain-Targeted Therapy in Alzheimer's Disease: Optimization, Biological Efficacy, and Potential Toxicity. J Pharm Sci 2016; 104:3544-3556. [PMID: 28739042 DOI: 10.1002/jps.24557] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 06/04/2015] [Accepted: 06/08/2015] [Indexed: 12/23/2022]
Abstract
Piperine (PIP) is a phytopharmaceutical with reported neuroprotective potential in Alzheimer's disease (AD). Oral PIP delivery suffers from its hydrophobicity and pre-systemic metabolism. In this article, mono-disperse intranasal chitosan nanoparticles (CS-NPs) were elaborated for brain targeting of PIP. Formula optimization was based on particle size (PS), zeta potential (ZP), polydispersity index (PDI), % entrapment efficiency (% EE), release studies, and transmission electron microscopy. AD was induced in 48 male Wistar rats on which full behavioral and biochemical testing was conducted. Brain toxicity was assessed based on Caspase-3 assay for apoptosis and tumor necrosis factor for inflammation. Spherical NPs with optimum % EE (81.70), PS (248.50nm), PDI (0.24), and ZP (+56.30mV) were elaborated. PIP-NPs could significantly improve cognitive functions as efficient as standard drug (donpezil injection) with additional advantages of dual mechanism (Ach esterase inhibition and antioxidant effect). CS-NPs could significantly alleviate PIP nasal irritation and showed no brain toxicity. This work was the first to report additional mechanism of PIP in AD via anti-apoptosis and anti-inflammatory effects. To conclude, mucoadhesive CS-NPs were successfully tailored for effective, safe, and non-invasive PIP delivery with 20-folds decrease in oral dose, opening a gate for a future with lower AD morbidity. © 2015 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 104:3544-3556, 2015.
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Affiliation(s)
- Yosra S R Elnaggar
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
| | - Samar M Etman
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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18
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Souza AL, Ceridório LF, Paula GF, Mattoso LH, Oliveira ON. Understanding the biocide action of poly(hexamethylene biguanide) using Langmuir monolayers of dipalmitoyl phosphatidylglycerol. Colloids Surf B Biointerfaces 2015; 132:117-21. [DOI: 10.1016/j.colsurfb.2015.05.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 05/07/2015] [Accepted: 05/11/2015] [Indexed: 01/16/2023]
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19
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Souza AL, Pavinatto FJ, Caseli L, Volpati D, Miranda PB, Oliveira Jr. ON. Chitosan does not inhibit enzymatic action of human pancreatic lipase in Langmuir monolayers of 1,2-didecanoyl-glycerol (DDG). Colloids Surf B Biointerfaces 2014; 123:870-7. [DOI: 10.1016/j.colsurfb.2014.10.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/13/2014] [Accepted: 10/16/2014] [Indexed: 10/24/2022]
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20
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The effect of substituent, degree of acetylation and positioning of the cationic charge on the antibacterial activity of quaternary chitosan derivatives. Mar Drugs 2014; 12:4635-58. [PMID: 25196937 PMCID: PMC4145335 DOI: 10.3390/md12084635] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/23/2014] [Accepted: 07/23/2014] [Indexed: 11/17/2022] Open
Abstract
A series of water-soluble cationic chitosan derivatives were prepared by chemoselective functionalization at the amino group of five different parent chitosans having varying degrees of acetylation and molecular weight. The quaternary moieties were introduced at different alkyl spacer lengths from the polymer backbone (C-0, C-2 and C-6) with the aid of 3,6-di-O-tert-butyldimethylsilyl protection of the chitosan backbone, thus allowing full (100%) substitution of the free amino groups. All of the derivatives were characterized using 1H-NMR, 1H-1H COSY and FT-IR spectroscopy, while molecular weight was determined by GPC. Antibacterial activity was investigated against Gram positive S. aureus and Gram negative E. coli. The relationship between structure and activity/toxicity was defined, considering the effect of the cationic group’s structure and its distance from the polymer backbone, as well as the degree of acetylation within a molecular weight range of 7–23 kDa for the final compounds. The N,N,N-trimethyl chitosan with 100% quaternization showed the highest antibacterial activity with moderate cytotoxicity, while increasing the spacer length reduced the activity. Trimethylammoniumyl quaternary ammonium moieties contributed more to activity than 1-pyridiniumyl moieties. In general, no trend in the antibacterial activity of the compounds with increasing molecular weight or degree of acetylation up to 34% was observed.
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21
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Fernandes MM, Francesko A, Torrent-Burgués J, Carrión-Fité FJ, Heinze T, Tzanov T. Sonochemically Processed Cationic Nanocapsules: Efficient Antimicrobials with Membrane Disturbing Capacity. Biomacromolecules 2014; 15:1365-74. [DOI: 10.1021/bm4018947] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Margarida M. Fernandes
- Grup
de Biotecnologia Molecular i Industrial, Department d’Enginyeria
Química, Universitat Politècnica de Catalunya, Rambla
Sant Nebridi 22, 08222 Terrassa, Spain
| | - Antonio Francesko
- Grup
de Biotecnologia Molecular i Industrial, Department d’Enginyeria
Química, Universitat Politècnica de Catalunya, Rambla
Sant Nebridi 22, 08222 Terrassa, Spain
| | - Juan Torrent-Burgués
- Grup
de Biotecnologia Molecular i Industrial, Department d’Enginyeria
Química, Universitat Politècnica de Catalunya, Rambla
Sant Nebridi 22, 08222 Terrassa, Spain
| | - F. Javier Carrión-Fité
- Instituto
de Investigación Textil y C.I. de Terrassa Laboratorio de Tensioactivos
y Detergencia, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de Catalunya, Colom 1508222 Terrassa, Spain
| | - Thomas Heinze
- Center
of Excellence for Polysaccharide Research, Institute of Organic Chemistry
and Macromolecular Chemistry, Friedrich Schiller University of Jena, Humboldtstraße 10, 07743 Jena, Germany
| | - Tzanko Tzanov
- Grup
de Biotecnologia Molecular i Industrial, Department d’Enginyeria
Química, Universitat Politècnica de Catalunya, Rambla
Sant Nebridi 22, 08222 Terrassa, Spain
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Pavinatto A, Souza AL, Delezuk JAM, Pavinatto FJ, Campana-Filho SP, Oliveira ON. Interaction of O-acylated chitosans with biomembrane models: probing the effects from hydrophobic interactions and hydrogen bonding. Colloids Surf B Biointerfaces 2013; 114:53-9. [PMID: 24161506 DOI: 10.1016/j.colsurfb.2013.09.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/10/2013] [Accepted: 09/17/2013] [Indexed: 11/19/2022]
Abstract
One of the major challenges in establishing the mechanisms responsible for the chitosan action in biomedical applications lies in the determination of the molecular-level interactions with the cell membrane. In this study, we probed hydrophobic interactions and H-bonding in experiments with O,O'-diacetylchitosan (DACT) and O,O'-dipropionylchitosan (DPPCT) incorporated into monolayers of distinct phospholipids, the zwitterionic dipalmitoyl phosphatidyl choline (DPPC), and the negatively charged dipalmitoyl phosphatidyl glycerol (DPPG) and dimyristoyl phosphatidic acid (DMPA). The importance of hydrophobic interactions was confirmed with the larger effects observed for DACT and DPPCT than for parent chitosan (Chi), particularly for the more hydrophobic DPPCT. Such larger effects were noted in surface pressure isotherms and elasticity of the monolayers. Since H-bonding is hampered for the chitosan derivatives, which have part of their hydroxyl groups shielded by O-acylation, these effects indicate that H-bonding does not play an important role in the chitosan-membrane interactions. Using polarization-modulated infrared reflection absorption (PM-IRRAS) spectroscopy, we found that the chitosan derivatives were incorporated into the hydrophobic chain of the phospholipids, even at high surface pressures comparable to those in a real cell membrane. Taken together, these results indicate that the chitosan derivatives containing hydrophobic moieties would probably be more efficient than parent chitosan as antimicrobial agents, where interaction with the cell membrane is crucial.
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Affiliation(s)
- Adriana Pavinatto
- Institute of Chemistry of São Carlos, USP, PO Box 780, 13560-970 São Carlos, SP, Brazil.
| | - Adriano L Souza
- Institute of Physics of São Carlos, USP, PO Box 369, 13566-590 São Carlos, SP, Brazil
| | - Jorge A M Delezuk
- Institute of Physics of São Carlos, USP, PO Box 369, 13566-590 São Carlos, SP, Brazil
| | - Felippe J Pavinatto
- Institute of Physics of São Carlos, USP, PO Box 369, 13566-590 São Carlos, SP, Brazil
| | | | - Osvaldo N Oliveira
- Institute of Physics of São Carlos, USP, PO Box 369, 13566-590 São Carlos, SP, Brazil
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23
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Krajewska B, Wydro P, Kyzioł A. Chitosan as a subphase disturbant of membrane lipid monolayers. The effect of temperature at varying pH: I. DPPG. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Krajewska B, Kyzioł A, Wydro P. Chitosan as a subphase disturbant of membrane lipid monolayers. The effect of temperature at varying pH: II. DPPC and cholesterol. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Fernandes MM, Francesko A, Torrent-Burgués J, Tzanov T. Effect of thiol-functionalisation on chitosan antibacterial activity: Interaction with a bacterial membrane model. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.01.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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The modulation of attachment, growth and morphology of cancerous prostate cells by polyelectrolyte nanofilms. Biomaterials 2013; 34:10099-108. [PMID: 24060421 DOI: 10.1016/j.biomaterials.2013.08.093] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 08/31/2013] [Indexed: 11/20/2022]
Abstract
The behaviour of cancerous epithelial prostatic cells (PC3) growing on polyelectrolytes (PE) coatings was compared to the behaviour of immortalized normal prostatic cells (PNT-2). The cell behaviour was evaluated and quantified in terms of initial cell attachment, growth, metabolic activity, morphometry, adhesion, apoptosis and stress related gene expression. Both the anionic PSS (poly(sodium 4-styrenesulphonate))-terminated surface and cationic PAH (poly(allylamine hydrochloride))-terminated surfaces were not cytotoxic. The initial attachment of cells was better on the PAH-terminated surface compared to fibronectin. However, the proliferation rate of PC3 cells was reduced on the PAH-terminated surface and slightly increased on the PSS coatings. Only PAH prevented the clustering phenotype of PC3 and reduced the number of focal adhesion points as compared to fibronectin or PSS coatings. In contrast, none of the PE surfaces significantly affected the biological responses of PNT-2 cells. PAH-terminating films provide a tool to preferentially modulate the growth of some cancerous phenotypes, in this case as a micro-environment that reduces the growth of metastatic PC3 cells.
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27
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Tan C, Xue J, Eric K, Feng B, Zhang X, Xia S. Dual effects of chitosan decoration on the liposomal membrane physicochemical properties as affected by chitosan concentration and molecular conformation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:6901-6910. [PMID: 23772808 DOI: 10.1021/jf401556u] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study was devoted to a further understanding of the dependence of liposomal membrane properties on chitosan conformation and proved the dual effects of chitosan. The concentration dependence of chitosan conformation in aqueous solution was illustrated by surface tension and fluorescence probe techniques. Fluorescence and Raman spectra were subsequently employed to investigate the dynamic and structural changes of the liposomal membrane resulting from chitosan decoration. Results showed that the unfolded and crimped chains of chitosan flatly adsorbed onto the membrane surface via electrostatic attraction and favored liposome stability. Furthermore, the adsorption of crimped chains seemed stronger due to the embedding of their hydrophobic moieties. However, the presence of chitosan coils induced the increase in membrane fluidity, the intrachain disorder in lipid molecules, and the gauche conformation change of choline group. Dynamic light scattering and lipid oxidation measurements demonstrated that this perturbation was correlated with the permeation of coils into the lipid bilayer.
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Affiliation(s)
- Chen Tan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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28
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Pavinatto A, Pavinatto FJ, Delezuk JADM, Nobre TM, Souza AL, Campana-Filho SP, Oliveira ON. Low molecular-weight chitosans are stronger biomembrane model perturbants. Colloids Surf B Biointerfaces 2013; 104:48-53. [DOI: 10.1016/j.colsurfb.2012.11.047] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 11/26/2012] [Accepted: 11/27/2012] [Indexed: 11/28/2022]
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29
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Torrano AA, Pereira ÂS, Oliveira ON, Barros-Timmons A. Probing the interaction of oppositely charged gold nanoparticles with DPPG and DPPC Langmuir monolayers as cell membrane models. Colloids Surf B Biointerfaces 2013; 108:120-6. [PMID: 23528608 DOI: 10.1016/j.colsurfb.2013.02.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 02/08/2013] [Accepted: 02/11/2013] [Indexed: 12/19/2022]
Abstract
The growing use of nanoparticles in a variety of applications calls for detailed studies of their toxicology, which in turn require understanding the interactions between nanoparticles and living cells. Since simulating the interaction with real cell membranes is rather complex, Langmuir monolayers (LMs) have been used to mimic the first barrier encountered by a nanoparticle as it approaches a biological membrane to assess molecular-level interactions. In this study, we show how oppositely charged gold nanoparticles (Au-NPs) interact with monolayers of the zwitterionic dipalmitoylphosphatidyl choline (DPPC) and negatively charged dipalmitoylphosphatidyl glycerol (DPPG). The monolayers were spread on subphases containing two concentrations of either negatively charged Au-NPs coated with citrate anions or positively charged Au-NPs functionalized with the cationic polyelectrolyte poly(allylamine hydrochloride) (PAH). For DPPG, electrostatic effects dominated which depended strongly on the NPs capping agent, being obviously larger for the positive nanoparticles. The in-plane elasticity for DPPG monolayers within the surface pressure range corresponding to real cell membranes increased with adsorption of positively charged NPs, but decreased with the negative ones. For the zwitterionic DPPC, on the other hand, significant effects only occurred for negatively charged NPs, including a decrease in elasticity. Therefore, it is concluded that the nature, namely the charge of the capping agents, is crucial for the interaction of charged NPs with the cell membrane.
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Affiliation(s)
- Adriano A Torrano
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
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30
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Martínez-Camacho A, Cortez-Rocha M, Graciano-Verdugo A, Rodríguez-Félix F, Castillo-Ortega M, Burgos-Hernández A, Ezquerra-Brauer J, Plascencia-Jatomea M. Extruded films of blended chitosan, low density polyethylene and ethylene acrylic acid. Carbohydr Polym 2013; 91:666-74. [DOI: 10.1016/j.carbpol.2012.08.076] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 08/22/2012] [Accepted: 08/23/2012] [Indexed: 10/27/2022]
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31
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Gzyl-Malcher B, Handzlik J, Klekowska E. Interaction of prazosin with model membranes — A Langmuir monolayer study. Bioelectrochemistry 2012; 87:96-103. [DOI: 10.1016/j.bioelechem.2011.12.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 11/27/2011] [Accepted: 12/10/2011] [Indexed: 11/24/2022]
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32
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Martínez-Camacho AP, Cortez-Rocha MO, Castillo-Ortega MM, Burgos-Hernández A, Ezquerra-Brauer JM, Plascencia-Jatomea M. Antimicrobial activity of chitosan nanofibers obtained by electrospinning. POLYM INT 2011. [DOI: 10.1002/pi.3174] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Krajewska B, Wydro P, Jańczyk A. Probing the Modes of Antibacterial Activity of Chitosan. Effects of pH and Molecular Weight on Chitosan Interactions with Membrane Lipids in Langmuir Films. Biomacromolecules 2011; 12:4144-52. [DOI: 10.1021/bm2012295] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Barbara Krajewska
- Faculty of Chemistry, Jagiellonian University, 30-060 Kraków, Ingardena 3, Poland
| | - Paweł Wydro
- Faculty of Chemistry, Jagiellonian University, 30-060 Kraków, Ingardena 3, Poland
| | - Agnieszka Jańczyk
- Faculty of Chemistry, Jagiellonian University, 30-060 Kraków, Ingardena 3, Poland
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34
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Mertins O, Dimova R. Binding of chitosan to phospholipid vesicles studied with isothermal titration calorimetry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:5506-5515. [PMID: 21466162 DOI: 10.1021/la200553t] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We thermodynamically characterize the interaction of chitosan with small liposomes and the binding and organization of the polysaccharide on the membrane of the vesicles. By means of isothermal titration calorimetry (ITC), we obtain the enthalpy variations arising from binding of the positively ionized chitosan to neutral and negatively charged liposomes. The strong electrostatic interaction of the polysaccharide with the negative charges at the membrane gives rise to highly exothermic signal until charge compensation is reached. The equilibrium constant, the interaction stoichiometry, and the molar enthalpy of binding chitosan monomers to phospholipids from the external leaflet of the vesicle membrane are obtained from the isotherm curve fitting assuming independent binding sites. The strong exothermic signal indicates that the electrostatically driven binding of chitosan to the membrane is energetically favored, leading to further stabilization of the vesicle suspension. The higher the net negative charge of the vesicles, the more pronounced the adsorption of chitosan is, leading to weaker chain organization of the adsorbed chitosan at the membrane. At the point of charge saturation, vesicle aggregation takes place and we show that this behavior does not always lead to charge reversal at the membrane. Models for the binding behavior and structural organization of chitosan are proposed based on the experimental results from ITC, ζ-potential, and dynamic light scattering.
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Affiliation(s)
- Omar Mertins
- Department of Theory and Bio-Systems, Max Planck Institute of Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany.
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35
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Probing the Functionalization of Gold Surfaces and Protein Adsorption by PM-IRRAS. Chemphyschem 2011; 12:1736-40. [DOI: 10.1002/cphc.201100080] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 03/20/2011] [Indexed: 11/07/2022]
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36
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Pavinatto FJ, Caseli L, Oliveira ON. Chitosan in Nanostructured Thin Films. Biomacromolecules 2010; 11:1897-908. [DOI: 10.1021/bm1004838] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Felippe J. Pavinatto
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Luciano Caseli
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Osvaldo N. Oliveira
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
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