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Delgado MZ, Aranda FL, Hernandez-Tenorio F, Garrido-Miranda KA, Meléndrez MF, Palacio DA. Polyelectrolytes for Environmental, Agricultural, and Medical Applications. Polymers (Basel) 2024; 16:1434. [PMID: 38794627 PMCID: PMC11124962 DOI: 10.3390/polym16101434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
In recent decades, polyelectrolytes (PELs) have attracted significant interest owing to a surge in research dedicated to the development of new technologies and applications at the biological level. Polyelectrolytes are macromolecules of which a substantial portion of the constituent units contains ionizable or ionic groups. These macromolecules demonstrate varied behaviors across different pH ranges, ionic strengths, and concentrations, making them fascinating subjects within the scientific community. The aim of this review is to present a comprehensive survey of the progress in the application studies of polyelectrolytes and their derivatives in various fields that are vital for the advancement, conservation, and technological progress of the planet, including agriculture, environmental science, and medicine. Through this bibliographic review, we seek to highlight the significance of these materials and their extensive range of applications in modern times.
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Affiliation(s)
- Martina Zuñiga Delgado
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
| | - Francisca L. Aranda
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
- Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepcion, 270 Edmundo Larenas, Box 160-C, Concepcion 4070409, Chile
| | - Fabian Hernandez-Tenorio
- Environmental Processes Research Group, School of Applied Sciences and Engineering, Universidad EAFIT, Medellin 050022, Colombia;
| | - Karla A. Garrido-Miranda
- Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4780000, Chile;
| | - Manuel F. Meléndrez
- Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Campus Las Tres Pascuales, Lientur 1457, Concepción 4060000, Chile
| | - Daniel A. Palacio
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
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Wang W, Shi J, Qu K, Zhang X, Jiang W, Huang Z, Guo Z. Composite film with adjustable number of layers for slow release of humic acid and soil remediation. ENVIRONMENTAL RESEARCH 2023; 218:114949. [PMID: 36495960 DOI: 10.1016/j.envres.2022.114949] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/29/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
In this study, to improve the soil amendment performance of film materials, composite films with the adjustable number of layers and controlled slow-release time were prepared using sodium alginate (SA), chitosan (CS) and activated charcoal (AC) as raw materials. The prepared multilayer films exhibited a wide pH response range and excellent slow-release time. The cumulative release of humic acid (HA) increased from 19.87 ± 0.98% to 66.72 ± 1.06% with increasing the pH from 4.0 to 10.0 after 700 h of slow-release. In addition, after 50 d of remediation in red soil, plantation soil, and saline soil, the NH4+-N, Olsen-P, Olsen-K, and organic matter contents in the three soils were increased by 2.91-28.62 mg/kg, 46.97-70.43 mg/kg, 55.89-77.01 mg/kg, and 12.47-22.52 g/kg, respectively, and were able to provide sustained crop growth promotion effect. This study demonstrates the promising application of multilayer film in soil remediation and agricultural production.
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Affiliation(s)
- Weicong Wang
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Junming Shi
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Keqi Qu
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Xinrui Zhang
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Wenjing Jiang
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China
| | - Zhanhua Huang
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University), Ministry of Education, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Zhanhu Guo
- Department of Chemical and Bimolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA; Integrated Composites Lab (ICL), Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK.
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Stimuli-responsive polyelectrolyte multilayer films and microcapsules. Adv Colloid Interface Sci 2022; 310:102773. [DOI: 10.1016/j.cis.2022.102773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 08/20/2022] [Accepted: 09/05/2022] [Indexed: 12/28/2022]
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Exploiting the layer-by-layer nanoarchitectonics for the fabrication of polymer capsules: A toolbox to provide multifunctional properties to target complex pathologies. Adv Colloid Interface Sci 2022; 304:102680. [PMID: 35468354 DOI: 10.1016/j.cis.2022.102680] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 01/12/2023]
Abstract
Polymer capsules fabricated via the layer-by-layer (LbL) approach have attracted a great deal of attention for biomedical applications thanks to their tunable architecture. Compared to alternative methods, in which the precise control over the final properties of the systems is usually limited, the intrinsic versatility of the LbL approach allows the functionalization of all the constituents of the polymeric capsules following relatively simple protocols. In fact, the final properties of the capsules can be adjusted from the inner cavity to the outer layer through the polymeric shell, resulting in therapeutic, diagnostic, or theranostic (i.e., combination of therapeutic and diagnostic) agents that can be adapted to the particular characteristics of the patient and face the challenges encountered in complex pathologies. The biomedical industry demands novel biomaterials capable of targeting several mechanisms and/or cellular pathways simultaneously while being tracked by minimally invasive techniques, thus highlighting the need to shift from monofunctional to multifunctional polymer capsules. In the present review, those strategies that permit the advanced functionalization of polymer capsules are accordingly introduced. Each of the constituents of the capsule (i.e., cavity, multilayer membrane and outer layer) is thoroughly analyzed and a final overview of the combination of all the strategies toward the fabrication of multifunctional capsules is presented. Special emphasis is given to the potential biomedical applications of these multifunctional capsules, including particular examples of the performed in vitro and in vivo validation studies. Finally, the challenges in the fabrication process and the future perspective for their safe translation into the clinic are summarized.
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Liu Y, Zhang G. Study on Sensitivity and Drug Loading Characteristics of Graphene‐like BN Nanosheets to Indomethacin Based on DFT. ChemistrySelect 2022. [DOI: 10.1002/slct.202103913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yeshu Liu
- College of Life and Health Sciences Northeastern University Shenyang 110819 China
| | - Guoying Zhang
- College of Physics Science and Technology Shenyang Normal University Huanghe North Street 110034 Shenyang China
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Kalaycioglu GD, Aydogan N. Layer-by-layer coated microcapsules with lipid nanodomains for dual-drug delivery. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Li T, Teng D, Mao R, Hao Y, Wang X, Wang J. Recent progress in preparation and agricultural application of microcapsules. J Biomed Mater Res A 2019; 107:2371-2385. [PMID: 31161699 DOI: 10.1002/jbm.a.36739] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/27/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022]
Abstract
Recent advances in life science technology have prompted the need to develop microcapsule delivery systems that can encapsulate many different functional or active materials such as drugs, peptides, and live cells, etc. The encapsulation technology is now commonly used in medicine, agriculture, food, and other many fields. The application of biodegradable microcapsule systems can not only effectively prevent the degradation of core materials in the body or the biological environment, but also improve the bioavailability, control the release and prolong the halftime or storage of core active materials. Various wall materials, preparation methods, encapsulation processes, and release mechanisms are covered in this review, as well as several main factors including pH values, temperatures, particle sizes, and additives, which can strongly influence the encapsulation efficiency, the strength, and release of microcapsules. The improvement of coating materials, preparation techniques, and challenges are also highlighted, as well as application prospects.
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Affiliation(s)
- Ting Li
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Xiumin Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
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Khoder M, Gbormoi HK, Ryan A, Karam A, Alany RG. Potential Use of the Maillard Reaction for Pharmaceutical Applications: Gastric and Intestinal Controlled Release Alginate-Albumin Beads. Pharmaceutics 2019; 11:pharmaceutics11020083. [PMID: 30781442 PMCID: PMC6410193 DOI: 10.3390/pharmaceutics11020083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/07/2019] [Accepted: 02/13/2019] [Indexed: 12/14/2022] Open
Abstract
In this study, bovine serum albumin (BSA) and alginate (ALG) conjugates were synthesized by the Maillard reaction in order to evaluate their potential to develop controlled release drug delivery systems. The progress of the Maillard reaction was evidenced using ultraviolet (UV) absorbance, determination of BSA remaining free amino groups, and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). BSA-ALG conjugates possessed enhanced and tunable viscosity, foamability and foam stability. Foam generated from BSA-ALG conjugate solution was used to prepare floating gastroretentive calcium ALG beads. Unlike traditional ALG beads, BSA-ALG foam beads were able to float and sustain the ciprofloxacin (CIP) release in gastric medium. Interestingly, intestinal beads made of ALG, BSA-ALG physical mixture and BSA-ALG conjugate resulted in different release rates and orders of indomethacin (IND) in simulated intestinal fluids; while beads based on a physical mixture of BSA-ALG resulted in a first order sustained release profile, both systems based on ALG and BSA-ALG conjugate displayed zero order sustained release profiles with IND being released at a slower rate from the conjugate beads.
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Affiliation(s)
- Mouhamad Khoder
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, London KT1 2EE, UK.
| | - Henry K Gbormoi
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, London KT1 2EE, UK.
- Liberia Medicines & Health Products Regulatory Authority (LMHRA), Monrovia, Liberia.
| | - Ali Ryan
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, London KT1 2EE, UK.
| | - Ayman Karam
- Institut de Chimie des Milieux et Matériaux de Poitiers, Université de Poitiers, Centre National de la Recherche Scientifique, ENSIP, TSA 51106 Poitiers, France.
| | - Raid G Alany
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, London KT1 2EE, UK.
- School of Pharmacy, The University of Auckland, Auckland 1142, New Zealand.
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Purwanti N, Zehn AS, Pusfitasari ED, Khalid N, Febrianto EY, Mardjan SS, Andreas, Kobayashi I. Emulsion stability of clove oil in chitosan and sodium alginate matrix. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2018.1454946] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Nanik Purwanti
- Biosystem Engineering Division, Department of Mechanical & Biosystem Engineering, Bogor Agricultural University, Bogor, Indonesia
- Southeast Asian Food & Agricultural Sciences & Technology Center, Bogor Agricultural University, Bogor, Indonesia
| | - Azmi Syahrian Zehn
- Biosystem Engineering Division, Department of Mechanical & Biosystem Engineering, Bogor Agricultural University, Bogor, Indonesia
| | - Eka Dian Pusfitasari
- Research Center for Chemistry, Indonesian Institute of Sciences, Komplek PUSPIPTEK, Tangerang Selatan, Banten, Indonesia
| | - Nauman Khalid
- School of Food and Agricultural Sciences, University of Management and Technology, Lahore, Pakistan
- Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, Australia
| | - Erfin Yundra Febrianto
- Research Center for Physics, Indonesian Institute of Sciences, Komplek PUSPIPTEK, Tangerang Selatan, Banten, Indonesia
| | - Sutrisno Suro Mardjan
- Biosystem Engineering Division, Department of Mechanical & Biosystem Engineering, Bogor Agricultural University, Bogor, Indonesia
| | - Andreas
- Research Center for Chemistry, Indonesian Institute of Sciences, Komplek PUSPIPTEK, Tangerang Selatan, Banten, Indonesia
| | - Isao Kobayashi
- National Food Research Institute, NARO, Tsukuba, Ibaraki, Japan
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Huang T, Luan X, Xia Q, Pan S, An Q, Wu Y, Zhang Y. Molecularly Selective Regulation of Delivery Fluxes by Employing Supramolecular Interactions in Layer-by-Layer Films. Chem Asian J 2018; 13:1067-1073. [DOI: 10.1002/asia.201800276] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Tao Huang
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
| | - Xinglong Luan
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
- BOE Technology Group Co. Ltd.; No.9 Dize Road, BDA Beijing P.R. China
| | - Qi Xia
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
| | - Shaofeng Pan
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
| | - Yaling Wu
- School of Chemistry and Molecular Engineering; Peking University; Beijing 100083 P.R. China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of, Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 P.R. China
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Deen GR, Loh XJ. Stimuli-Responsive Cationic Hydrogels in Drug Delivery Applications. Gels 2018; 4:E13. [PMID: 30674789 PMCID: PMC6318685 DOI: 10.3390/gels4010013] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 12/11/2022] Open
Abstract
Stimuli-responsive, smart, intelligent, or environmentally sensitive polymers respond to changes in external stimuli such as pH, temperature, ionic strength, surfactants, pressure, light, biomolecules, and magnetic field. These materials are developed in various network architectures such as block copolymers, crosslinked hydrogels, nanogels, inter-penetrating networks, and dendrimers. Stimuli-responsive cationic polymers and hydrogels are an interesting class of "smart" materials that respond reversibly to changes in external pH. These materials have the ability to swell extensively in solutions of acidic pH and de-swell or shrink in solutions of alkaline pH. This reversible swelling-shrinking property brought about by changes in external pH conditions makes these materials useful in a wide range of applications such as drug delivery systems and chemical sensors. This article focuses mainly on the properties of these interesting materials and their applications in drug delivery systems.
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Affiliation(s)
- G Roshan Deen
- Soft Materials Laboratory, Natural Sciences and Science Education AG, National Institute of Education, Nanyang Technological University, 1-Nanyang Walk, Singapore 637616, Singapore.
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, 2-Fusionopolis Way, Singapore 138634, Singapore.
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12
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Soltani B, Nabipour H, Ahmadi Nasab N. Fabrication, controlled release, and kinetic studies of indomethacin—layered zinc hydroxide nanohybrid and its effect on the viability of HFFF2. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1388178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Behzad Soltani
- Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Hafezeh Nabipour
- Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Navid Ahmadi Nasab
- Biomaterials Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj, Iran
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13
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Huang W, Zhan Y, Shi X, Chen J, Deng H, Du Y. Controllable immobilization of naringinase on electrospun cellulose acetate nanofibers and their application to juice debittering. Int J Biol Macromol 2017; 98:630-636. [DOI: 10.1016/j.ijbiomac.2017.02.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 11/29/2022]
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15
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Facile approach to prepare drug-loading film from hemicelluloses and chitosan. Carbohydr Polym 2016; 153:542-548. [DOI: 10.1016/j.carbpol.2016.08.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/24/2016] [Accepted: 08/03/2016] [Indexed: 01/23/2023]
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16
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Enhancing droplet deposition through in-situ precipitation. Nat Commun 2016; 7:12560. [PMID: 27572948 PMCID: PMC5013560 DOI: 10.1038/ncomms12560] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 07/14/2016] [Indexed: 12/22/2022] Open
Abstract
Retention of agricultural sprays on plant surfaces is an important challenge. Bouncing of sprayed pesticide droplets from leaves is a major source of soil and groundwater pollution and pesticide overuse. Here we report a method to increase droplet deposition through in-situ formation of hydrophilic surface defects that can arrest droplets during impact. Defects are created by simultaneously spraying oppositely charged polyelectrolytes that induce surface precipitation when two droplets come into contact. Using high-speed imaging, we study the coupled dynamics of drop impact and surface precipitate formation. We develop a physical model to estimate the energy dissipation by the defects and predict the transition from bouncing to sticking. We demonstrate macroscopic enhancements in spray retention and surface coverage for natural and synthetic non-wetting surfaces and provide insights into designing effective agricultural sprays. The extensive use of pesticides in agriculture calls for efficient spraying techniques to reduce pollution of soils and groundwater by toxic chemicals. Damak et al. simultaneously spray liquids containing oppositely charged polyelectrolytes that form defects, pinning droplets on targeted surfaces.
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Polomska A, Leroux JC, Brambilla D. Layer-by-Layer Coating of Solid Drug Cores: A Versatile Method to Improve Stability, Control Release and Tune Surface Properties. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600228] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/14/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Anna Polomska
- Institute of Pharmaceutical Sciences; Department of Chemistry and Applied Biosciences; Swiss Federal Institute of Technology Zurich (ETHZ); Vladimir-Prelog Weg 1-5/10 8093 Zurich Switzerland
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences; Department of Chemistry and Applied Biosciences; Swiss Federal Institute of Technology Zurich (ETHZ); Vladimir-Prelog Weg 1-5/10 8093 Zurich Switzerland
| | - Davide Brambilla
- Institute of Pharmaceutical Sciences; Department of Chemistry and Applied Biosciences; Swiss Federal Institute of Technology Zurich (ETHZ); Vladimir-Prelog Weg 1-5/10 8093 Zurich Switzerland
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18
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Ben Messaoud G, Sánchez-González L, Probst L, Jeandel C, Arab-Tehrany E, Desobry S. Physico-chemical properties of alginate/shellac aqueous-core capsules: Influence of membrane architecture on riboflavin release. Carbohydr Polym 2016; 144:428-37. [DOI: 10.1016/j.carbpol.2016.02.081] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/23/2016] [Accepted: 02/29/2016] [Indexed: 12/23/2022]
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20
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Sakr OS, Berndt S, Carpentier G, Cuendet M, Jordan O, Borchard G. Arming embolic beads with anti-VEGF antibodies and controlling their release using LbL technology. J Control Release 2016; 224:199-207. [PMID: 26780173 DOI: 10.1016/j.jconrel.2016.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/28/2015] [Accepted: 01/07/2016] [Indexed: 12/21/2022]
Abstract
Transarterial chemoembolization (TACE) is used to treat various types of hypervascular tumors such as hepatocellular carcinoma and renal cancer. However, embolization and blocking of blood vessels nourishing a tumor mass evokes an angiogenic response due to the secretion of vascular endothelial growth factor (VEGF), which results in the formation of new blood vessels and eventually limitation in therapeutic efficacy. The presented work investigates the feasibility of loading the clinically used embolic beads (DC Bead®) with Bevacizumab (BEV), an anti-VEGF antibody, and control its release kinetics via Layer-by-Layer (LbL) coating. This strategy has the aim to achieve high, localized and sustained concentrations of BEV at the tumor site and reduce drug exposure in the systemic circulation. High loading of BEV on lyophilized beads of about 76mg BEV/bead vial was achieved. LbL coating was carried out by depositing alternating layers of the biocompatible polymers alginate and poly-L-lysine. Coating was proven successful by monitoring the reversal of zeta potential after addition of each layer. Morphological changes of the bead surface before and after coating were illustrated using SEM imaging. Moreover, release profiles from different formulations were studied and results showed that optimizing the number of deposited layers effectively slows the release of BEV for three days. Activity of released BEV was studied in different 2D and 3D cell based assays. Released BEV fractions showed comparable activity to fresh BEV solution used as control after 3days. In conclusion, our results suggest the opportunity for loading anti-VEGF antibodies on commercially available embolic beads to increase the efficacy of TACE of hypervascular tumors.
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Affiliation(s)
- O S Sakr
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland
| | - S Berndt
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland
| | - G Carpentier
- CRRET Laboratory, University of Paris Est Creteil Val de Marne, Avenue du Général de Gaulle 61, 94010 Créteil Cedex, France
| | - M Cuendet
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland
| | - O Jordan
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland
| | - G Borchard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland.
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Improvement of the surface wettability of silicone hydrogel contact lenses via layer-by-layer self-assembly technique. Colloids Surf B Biointerfaces 2015; 136:735-43. [DOI: 10.1016/j.colsurfb.2015.10.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/27/2015] [Accepted: 10/05/2015] [Indexed: 11/23/2022]
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22
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Sakr OS, Jordan O, Borchard G. Sustained protein release from hydrogel microparticles using layer-by-layer (LbL) technology. Drug Deliv 2015; 23:2747-2755. [DOI: 10.3109/10717544.2015.1069422] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Omar S. Sakr
- School of Pharmaceutical Sciences Geneva-Lausanne, University of Geneva, University of Lausanne, Geneva, Switzerland
| | - Olivier Jordan
- School of Pharmaceutical Sciences Geneva-Lausanne, University of Geneva, University of Lausanne, Geneva, Switzerland
| | - Gerrit Borchard
- School of Pharmaceutical Sciences Geneva-Lausanne, University of Geneva, University of Lausanne, Geneva, Switzerland
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23
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Hujaya SD, Engbersen JFJ, Paulusse JMJ. Multilayered Thin Films from Boronic Acid-Functional Poly(amido amine)s As Drug-Releasing Surfaces. Pharm Res 2015; 32:3732-45. [PMID: 26113233 PMCID: PMC4596910 DOI: 10.1007/s11095-015-1734-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 06/04/2015] [Indexed: 11/04/2022]
Abstract
Purpose To evaluate the potential of poly(amido amine)-based multilayered thin films in surface mediated drug release. Methods Multilayered thin films were prepared from copolymers of phenylboronic acid-functional poly(amido amine)s and chondroitin sulfate (ChS) in the presence of Alizarin Red S (ARS) as a reporter molecule. Multilayer buildup and ARS incorporation were evaluated with UV–vis spectroscopy. Glucose responsiveness of the multilayers was investigated. Finally, cellular uptake of ARS by COS-7 cells grown on the films was assessed. Results Multilayers based on alcohol containing polymers (ABOL-BA-PAA#ChS + ARS) displayed higher ARS incorporation than multilayers based on amine-containing polymers (DAB-BA-PAA#ChS + ARS). At physiological pH, a swift initial release of up to ~40% of the ARS content was observed during the first 12 h of incubation, followed by a much slower, gradual release of ARS. The multilayers were further evaluated by culturing COS-7 cells on top of multilayer-coated well plates. Cellular uptake of the fluorescent ARS-boronate ester was quantified through flow cytometry, and a maximum uptake of up to 30% was observed. Confocal microscopy confirmed the presence of ARS-boronate ester-containing particles in the nuclei of cells. Conclusions The investigated multilayered thin films are effective in surface-mediated delivery of the model compound ARS. These multilayered surfaces are promising as drug-releasing delivery surface for coating stents, prostheses, and other implants. ᅟ ![]()
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Affiliation(s)
- Sry D Hujaya
- Department of Controlled Drug Delivery, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Johan F J Engbersen
- Department of Controlled Drug Delivery, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
| | - Jos M J Paulusse
- Department of Controlled Drug Delivery, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
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Aston R, Wimalaratne M, Brock A, Lawrie G, Grøndahl L. Interactions between Chitosan and Alginate Dialdehyde Biopolymers and Their Layer-by-Layer Assemblies. Biomacromolecules 2015; 16:1807-17. [DOI: 10.1021/acs.biomac.5b00383] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robyn Aston
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Medini Wimalaratne
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Aidan Brock
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Gwendolyn Lawrie
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
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Jaganathan S. Bioresorbable polyelectrolytes for smuggling drugs into cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1080-97. [PMID: 25961363 DOI: 10.3109/21691401.2015.1011801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
There is ample evidence that biodegradable polyelectrolyte nanocapsules are multifunctional vehicles which can smuggle drugs into cells, and release them upon endogenous activation. A large number of endogenous stimuli have already been tested in vitro, and in vivo research is escalating. Thus, the interest in the design of intelligent polyelectrolyte multilayer (PEM) drug delivery systems is clear. The need of the hour is a systematic translation of PEM-based drug delivery systems from the lab to clinical studies. Reviews on multifarious stimuli that can trigger the release of drugs from such systems already exist. This review summarizes the available literature, with emphasis on the recent progress in PEM-based drug delivery systems that are receptive in the presence of endogenous stimuli, including enzymes, glucose, glutathione, pH, and temperature, and addresses different active and passive drug targeting strategies. Insights into the current knowledge on the diversified endogenous approaches and methodological challenges may bring inspiration to resolve issues that currently bottleneck the successful implementation of polyelectrolytes into the catalog of third-generation drug delivery systems.
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Affiliation(s)
- Sripriya Jaganathan
- a SRM Research Institute, SRM University , Kattankulathur, 603203 , Chennai , Tamil Nadu , India
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26
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Chatterjee S, Salaün F, Campagne C. Development of multilayer microcapsules by a phase coacervation method based on ionic interactions for textile applications. Pharmaceutics 2014; 6:281-97. [PMID: 24932719 PMCID: PMC4085600 DOI: 10.3390/pharmaceutics6020281] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 05/09/2014] [Accepted: 05/20/2014] [Indexed: 11/16/2022] Open
Abstract
The present study describes the development of multilayer microcapsules by 11 alternate additions of chitosan (Chi) and sodium dodecyl sulfate (SDS) in a combined emulsification and phase coacervation method based on ionic interactions. After an alkali treatment, microcapsules are applied on polyester (PET) fabric by a padding process to investigate their wash-durability on fabric. Air atmospheric plasma treatment is performed on PET fabric to modify the surface properties of the textiles. Zeta potential, X-ray photoelectron spectroscopy (XPS), wetting measurements, scanning electron microscopy (SEM), and atomic force microscopy (AFM) with surface roughness measurements are realized to characterize and determine wash durability of microcapsule samples onto PET. After alkali treatment, the microcapsules are selected for textile application because they are submicron sized with the desired morphology. The results obtained from various characterization techniques indicate that microcapsules are wash-durable on PET fabric pre activated by air plasma atmospheric as Chi based microcapsules can interact directly with PET by ionic interactions.
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Affiliation(s)
| | - Fabien Salaün
- University of Lille Nord de France, F-59000 Lille, France.
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27
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Fan F, Wang C. UV-Vis irradiation fatigue resistance improvement of azo photochromic compound using polyurethane-chitosan double shell encapsulation. J Appl Polym Sci 2014. [DOI: 10.1002/app.40895] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fei Fan
- Colleage of Textiles and Clothing, Key Laboratory of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi 214122 People's Republic of China
| | - Chaoxia Wang
- Colleage of Textiles and Clothing, Key Laboratory of Eco-Textile; Ministry of Education, Jiangnan University; Wuxi 214122 People's Republic of China
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Abstract
Porous CaCO₃ vaterite microparticles have been introduced a decade ago as sacrificial cores and becoming nowadays as one of the most popular templates to encapsulate bioactive molecules. This is due to the following beneficial features: i) mild decomposition conditions, ii) highly developed surface area, and iii) controlled size as well as easy and chip preparation. Such properties allow one to template and design particles with well tuned material properties in terms of composition, structure, functionality -- the parameters crucially important for bioapplications. This review presents a recent progress in utilizing the CaCO₃ cores for the assembly of micrometer-sized beads and capsules with encapsulated both small drugs and large biomacromolecules. Bioapplications of all the particles for drug delivery, biotechnology, and biosensing as well as future perspectives for templating are addressed.
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Affiliation(s)
- Dmitry Volodkin
- Fraunhofer Institute for Biomedical Engineering (IBMT), Am Muehlenberg 13, 14476 Potsdam-Golm, Germany.
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30
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Yan S, Zhang X, Sun Y, Wang T, Chen X, Yin J. In situ preparation of magnetic Fe3O4 nanoparticles inside nanoporous poly(l-glutamic acid)/chitosan microcapsules for drug delivery. Colloids Surf B Biointerfaces 2014; 113:302-11. [DOI: 10.1016/j.colsurfb.2013.09.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 08/27/2013] [Accepted: 09/03/2013] [Indexed: 11/15/2022]
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Redolfi Riva E, Desii A, Sartini S, La Motta C, Mazzolai B, Mattoli V. PMMA/polysaccharides nanofilm loaded with adenosine deaminase inhibitor for targeted anti-inflammatory drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:13190-7. [PMID: 24073802 DOI: 10.1021/la402229k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A novel drug delivery vector, a free-standing polymeric ultrathin film (nanofilm) composed of PMMA and a polysaccharides multilayer, is presented. Chitosan and sodium alginate are alternatively deposited by spin-assisted LbL assembly onto a plasma-treated PMMA thin film. Hydrophobic anti-inflammatory drugs, an adenosine deaminase inhibitor (APP) and its fluorescent dansyl derivate (APP-Dns), are encapsulated inside the LbL multilayer using a simple casting deposition procedure. The resulting drug loaded nanofilm can be suspended in water upon dissolution of a PVA sacrificial layer. Morphological characterization of the nanofilm shows that PMMA/LbL nanofilms possess nanometric thickness (<200 nm) and very low surface roughness (1-2 nm for drug loaded nanofilms and <1 nm for blank nanofilm). Drug loaded films exhibit a diffusion controlled release mechanism following the Korsmayer-Peppas release model, confirmed by the fit of release data with a characteristic power law. Drug release is impaired through the PMMA layer, which acts effectively as a barrier for drug transport. This ultrathin polymer film can find application as a nanopatch for targeted inflammatory drug delivery to treat localized pathologies as inflammatory bowel disease.
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Affiliation(s)
- Eugenio Redolfi Riva
- Center for Micro-BioRobotics @SSSA, Istituto Italiano di Tecnologia , Viale Rinaldo Piaggio 34 Pontedera, Pisa, 56025, Italy
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Chitosan/alginate multilayer film for controlled release of IDM on Cu/LDPE composite intrauterine devices. Colloids Surf B Biointerfaces 2013; 109:82-9. [DOI: 10.1016/j.colsurfb.2013.03.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 11/22/2022]
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33
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Elżbieciak-Wodka M, Warszyński P. Effect of deposition conditions on thickness and permeability of the multilayer films formed from natural polyelectrolytes. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.10.169] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Liu W, Liu J, Liu W, Li T, Liu C. Improved physical and in vitro digestion stability of a polyelectrolyte delivery system based on layer-by-layer self-assembly alginate-chitosan-coated nanoliposomes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:4133-4144. [PMID: 23566223 DOI: 10.1021/jf305329n] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
To improve lipid membrane stability and prevent leakage of encapsulated food ingredients, a polyelectrolyte delivery system (PDS) based on sodium alginate (AL) and chitosan (CH) coated on the surface of nanoliposomes (NLs) has been prepared and optimized using a layer-by-layer self-assembly deposition technique. Morphology and FTIR observation confirmed PDS has been successfully coated by polymers. Physical stability studies (pH and heat treatment) indicated that the outer-layer polymers could protect the core (NLs) from damage, and PDS showed more intact structure than NLs. Further enzymic digestion stability studies (particle size, surface charge, free fatty acid, and model functional component release) demonstrated that PDS could better resist lipolytic degradation and facilitate a lower level of encapsulated component release in simulated gastrointestinal conditions. This work suggested that deposition of polyelectrolyte on the surface of NLs can stabilize liposomal structure, and PDS could be developed as a formulation for delivering functional food ingredients in the gastrointestinal tract.
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Affiliation(s)
- Weilin Liu
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, Jiangxi, People's Republic of China
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35
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Wang X, Zhao J. Encapsulation of the herbicide picloram by using polyelectrolyte biopolymers as layer-by-layer materials. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3789-3796. [PMID: 23544987 DOI: 10.1021/jf4004658] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Microcapsules of the herbicide picloram (PLR) were formulated by a layer-by-layer (LbL) self-assembly method using the polyelectrolyte biopolymers of biocompatible chitosan (CS) and the UV-absorbent sodium lignosulfonate (SL) as shell materials. The herbicide PLR was recrystallized and characterized using XRD analysis. The obtained PLR-loaded microcapsules were characterized by using SEM, FTIR, CLSM, and ζ-potential measurements. The herbicide loading and encapsulation efficiency were also analyzed for the PLR-loaded microcapsules. The influence of LbL layer numbers on herbicide release and photodegradation rates was investigated in vitro. The results showed that the release rates and photodegradation rates of PLR in microcapsules decreased with increasing number of CS/SL self-assembly layers. The results demonstrated that polyelectrolyte biopolymer-based LbL multilayer microcapsules can be a promising approach for the controlled release of PLR as well as other pesticides with poor photostability or short half-release time.
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Affiliation(s)
- Xiaojing Wang
- College of Materials Science and Engineering, Beijing University of Chemical Technology , 15 Beisanhuan East Road, Chao Yang District, Beijing 100029, China
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36
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Wang L, Zhang T, Yan H, Peng M, Fang Z. Modification of ramie fabric with a metal-ion-doped flame-retardant coating. J Appl Polym Sci 2013. [DOI: 10.1002/app.39015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Yang YH, Bolling L, Priolo MA, Grunlan JC. Super gas barrier and selectivity of graphene oxide-polymer multilayer thin films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:503-8. [PMID: 23023816 DOI: 10.1002/adma.201202951] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 01/09/2012] [Indexed: 05/02/2023]
Abstract
Super gas barrier thin films, fabricated with layer-by-layer assembly of polyethylenimine and graphene oxide, exhibit significantly reduced oxygen and carbon dioxide transmission rates. This thin film's nanobrick wall structure also provides high gas selectivity for hydrogen.
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Affiliation(s)
- You-Hao Yang
- Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
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Bazylińska U, Pietkiewicz J, Saczko J, Nattich-Rak M, Rossowska J, Garbiec A, Wilk KA. Nanoemulsion-templated multilayer nanocapsules for cyanine-type photosensitizer delivery to human breast carcinoma cells. Eur J Pharm Sci 2012; 47:406-20. [PMID: 22796218 DOI: 10.1016/j.ejps.2012.06.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 04/25/2012] [Accepted: 06/25/2012] [Indexed: 10/28/2022]
Abstract
There is great clinical interest in developing novel nanocarriers for hydrophobic cyanine dyes used as photosensitizing agents in photodynamic therapy (PDT). In the present study we have employed nanoemulsion-templated oil-core multilayer nanocapsules as robust nanocarriers for a cyanine-type photosensitizer IR-786. These nanoproducts were fabricated via layer-by-layer (LbL) adsorption of oppositely charged polyelectrolytes (PEs), i.e., anionic PSS and cationic PDADMAC on nanoemulsion liquid cores created by dicephalic or bulky saccharide-derived cationic surfactants. All nanocapsules, with different thicknesses of the PE shell and average size <200 nm (measured by DLS) demonstrated good capacity for IR-786 encapsulation. The nanocarriers were visualized by SEM and AFM and their photo-induced anticancer effect and cellular internalization in human breast carcinoma MCF-7/WT cells were determined. Biological response of the cell culture, expressed as dark and photocytotoxicity as well as fluorescence of drug molecules loaded in the multilayer vehicles, analyzed by the FACS and CLSM techniques, have indicated that the delivered IR-786 did not aggregate inside the cells and could, therefore, act as an effective third-generation photosensitizing agent. In vitro biological experiments demonstrated that the properties of studied nanostructures depended upon the PE type and the envelope thickness as well as on the surfactant architecture in the nanoemulsion-based templates employed for the nanocapsule fabrication. Similarity of results obtained for stored (three weeks in the dark at room temperature) and freshly-prepared nanocapsules, attests to viability of this stable, promising drug delivery system for poorly water-soluble cyanines useful in PDT.
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Affiliation(s)
- Urszula Bazylińska
- Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
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De Temmerman ML, Demeester J, De Smedt SC, Rejman J. Tailoring layer-by-layer capsules for biomedical applications. Nanomedicine (Lond) 2012; 7:771-88. [DOI: 10.2217/nnm.12.48] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Polymeric capsules have attracted great interest as versatile carrier systems in the area of medicine and pharmaceutics. These capsules are made by stepwise layer-by-layer adsorption of polymers onto a template core, which can be removed to produce hollow capsules. The cavity of these capsules can host various cargo molecules while the capsules’ wall can be functionalized towards desired properties by embedding specific moieties into the multilayers. Tuning of the capsules’ properties influences their interaction with cells and tissues and paves the way towards the development of stimuli-responsive capsules releasing their payload at a target site. In this review, we describe the generation of tailored layer-by-layer capsules and focus hereby on numerous potential applications of this multifunctional delivery platform in biomedical settings. We review the current status in the field and discuss the opportunities, as well as the hurdles, to be overcome to successfully transfer this technology to therapeutic and diagnostic applications.
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Affiliation(s)
- Marie-Luce De Temmerman
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
| | - Jo Demeester
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
| | - Joanna Rejman
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, B-9000 Ghent, Belgium
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Yan S, Rao S, Zhu J, Wang Z, Zhang Y, Duan Y, Chen X, Yin J. Nanoporous multilayer poly(L-glutamic acid)/chitosan microcapsules for drug delivery. Int J Pharm 2012; 427:443-51. [PMID: 22301425 DOI: 10.1016/j.ijpharm.2012.01.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 01/05/2012] [Accepted: 01/13/2012] [Indexed: 10/14/2022]
Abstract
Nanoporous poly(L-glutamic acid)/chitosan (PLGA/CS) multilayer microcapsules were fabricated by layer-by-layer (LbL) assembly using the porous silica particles as sacrificial templates. The LbL assembled nanoporous PLGA/CS microcapsules were characterized by Zeta-potential analyzer, FTIR, TGA, SEM, TEM and CLSM. 5-Fluorouracil (5-FU) was chosen as model drug. The drug loading content of PLGA/CS microcapsules depends on loading time, loading temperature, pH value and NaCl concentration. High loading capacity of microcapsules can be achieved by simply adjusting pH value and salt concentration. Moreover, 5-Fu loaded microcapsules take on a sustained release behavior, especially in an acid solution, in contrast to burst release of bare 5-Fu. The kinetics of 5-Fu release from PLGA/CS microcapsules conforms to Korsmeyer-Peppas and Baker-Lonsdale models, the mechanism of which can be ascribed to priority of drug diffusion and subordination of polymer degradation. The MTT cytotoxicity assay in vitro reveals the satisfactory anticancer activity of the drug-loaded PLGA/CS microcapsules. Therefore, the novel nanoporous PLGA/CS microcapsules is expected to find application in drug delivery systems.
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Affiliation(s)
- Shifeng Yan
- Department of Polymer Materials, Shanghai University, Shanghai 201800, China
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Shutava TG, Pattekari PP, Arapov KA, Torchilin VP, Lvov YM. Architectural layer-by-layer assembly of drug nanocapsules with PEGylated polyelectrolytes. SOFT MATTER 2012; 8:9418-9427. [PMID: 23144650 PMCID: PMC3490450 DOI: 10.1039/c2sm25683e] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
150-200 nm diameter capsules containing 60-70 wt % of poorly soluble drugs, paclitaxel and camptothecin, were produced by layer-by-layer (LbL) assembly on drug nanocores in a solution containing uncharged stabilizers. Optimization of capsule shell architecture and thickness allowed for concentrated (3-5 mg/mL) colloids that are stable in isotonic salt buffers. Nanoparticle aggregation during the washless LbL-assembly was prevented by using low molecular weight block-copolymers of poly(amino acids) (poly-L-lysine and poly-L-glutamic acid) with polyethylene glycol (PEG) in combination with heparin and bovine serum albumin at every bilayer building step. Minimal amounts of the polyelectrolytes were used to recharge the surface of nanoparticles in this non-washing LbL process. Such PEGylated shells resulted in drug nanocapsules with high colloidal stability in PBS buffer and increased protein adhesion resistance. The washless LbL polyelectrolyte nanocapsule assembly process, colloidal stability and nanoparticle morphology were monitored by dynamic light scattering and electrophoretic mobility measurements, UV-vis spectroscopy, TEM, SEM and laser confocal microscopy imaging.
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Affiliation(s)
- Tatsiana G Shutava
- Louisiana Tech University, Institute for Micromanufacturing, 911 Hergot Ave., Ruston, Louisiana, 71272, USA
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42
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Wong TW. Alginate graft copolymers and alginate-co-excipient physical mixture in oral drug delivery. J Pharm Pharmacol 2011; 63:1497-512. [PMID: 22060280 DOI: 10.1111/j.2042-7158.2011.01347.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Use of alginate graft copolymers in oral drug delivery reduces dosage form manufacture complexity with reference to mixing or coating processes. It is deemed to give constant or approximately steady weight ratio of alginate to covalently attached co-excipient in copolymers, thereby leading to controllable matrix processing and drug release. This review describes various grafting approaches and their outcome on oral drug release behaviour of alginate graft copolymeric matrices. It examines drug release modulation mechanism of alginate graft copolymers against that of co-excipients in non-grafted formulations. KEY FINDINGS Drug release from alginate matrices can be modulated through using either co-excipients or graft copolymers via changing their swelling, erosion, hydrophobicity/hydrophilicity, porosity and/or drug adsorption capacity. However, it is not known if the drug delivery performance of formulations prepared using alginate graft copolymers is superior to those incorporating graft-equivalent co-excipient physically in a dosage form without grafting but at the corresponding graft weight, owing to limited studies being available. CONCLUSIONS The value of alginate graft copolymers as the potential alternative to alginate-co-excipient physical mixture in oral drug delivery cannot be entirely defined by past and present research. Such an issue is complicated by the lack of green chemistry graft copolymer synthesis approach, high grafting process cost, complications and hazards, and the formed graft copolymers having unknown toxicity. Future research will need to address these matters to achieve a widespread commercialization and industrial application of alginate graft copolymers in oral drug delivery.
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Affiliation(s)
- Tin Wui Wong
- Non-Destructive Biomedical and Pharmaceutical Research Centre and Particle Design Research Group, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia.
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43
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de Villiers MM, Otto DP, Strydom SJ, Lvov YM. Introduction to nanocoatings produced by layer-by-layer (LbL) self-assembly. Adv Drug Deliv Rev 2011; 63:701-15. [PMID: 21699936 DOI: 10.1016/j.addr.2011.05.011] [Citation(s) in RCA: 225] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 04/11/2011] [Accepted: 05/16/2011] [Indexed: 10/18/2022]
Abstract
Studies on the adsorption of oppositely charged colloidal particles ultimately resulted in multilayered polyelectrolyte self-assembly. The inception of layer-by-layer constructed particles facilitated the production of multifunctional, stimuli-responsive carrier systems. An array of synthetic and natural polyelectrolytes, metal oxides and clay nanoparticles is available for the construction of multilayered nanocoats on a multitude of substrates or removable cores. Numerous substrates can be encapsulated utilizing this technique including dyes, enzymes, drugs and cells. Furthermore, the outer surface of the particles presents and ideal platform that can be functionalized with targeting molecules or catalysts. Some processing parameters determining the properties of these successive self-assembly constructs are the surface charge density, coating material concentration, rinsing and drying steps, temperature and ionic strength of the medium. Additionally, the simplicity of the layer-by-layer assembly technique and the availability of established characterization methods, render these constructs extremely versatile in applications of sensing, encapsulation and target- and trigger-responsive drug delivery.
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Drug-loaded polyelectrolyte microcapsules for sustained targeting of cancer cells. Adv Drug Deliv Rev 2011; 63:847-64. [PMID: 21620912 DOI: 10.1016/j.addr.2011.05.007] [Citation(s) in RCA: 162] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 04/28/2011] [Accepted: 05/07/2011] [Indexed: 12/17/2022]
Abstract
In this review we will overview novel nanotechnological nanocarrier systems for cancer therapy focusing on recent development in polyelectrolyte capsules for targeted delivery of antineoplastic drugs against cancer cells. Biodegradable polyelectrolyte microcapsules (PMCs) are supramolecular assemblies of particular interest for therapeutic purposes, as they can be enzymatically degraded into viable cells, under physiological conditions. Incorporation of small bioactive molecules into nano-to-microscale delivery systems may increase drug's bioavailability and therapeutic efficacy at single cell level giving desirable targeted therapy. Layer-by-layer (LbL) self-assembled PMCs are efficient microcarriers that maximize drug's exposure enhancing antitumor activity of neoplastic drug in cancer cells. They can be envisaged as novel multifunctional carriers for resistant or relapsed patients or for reducing dose escalation in clinical settings.
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Gupta GK, Jain V, Mishra PR. Templated ultrathin polyelectrolyte microreservoir for delivery of bovine serum albumin: fabrication and performance evaluation. AAPS PharmSciTech 2011; 12:344-53. [PMID: 21286881 DOI: 10.1208/s12249-011-9593-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 01/19/2011] [Indexed: 11/30/2022] Open
Abstract
The aim of the study was to develop ultrathin polyelectrolyte microreservoir (UPM) using two combinations of synthetic/synthetic (S/s; poly(allylamine hydrochloride) (PAH)/sodium poly(styrenesulfonate)) and synthetic/natural (S/n; PAH/sodium alginate) polyelectrolytes over spherical porous CaCO(3) core particles (CP) followed by core removal and to evaluate its biocompatibility and integrity of loaded model protein bovine serum albumin (BSA). A novel process for synthesis of CP was developed to obtain maximum yield of monodisperse vaterite (spherical) polymorph. The prepared UPM was characterized for surface morphology, layer-by-layer growth, pay load efficiency, integrity of BSA, as well as viability and cell adhesion using murine J 774 macrophages (Φ). In vitro release profile revealed that both S/s and S/n UPM were able to provide sufficient diffusion barrier to release protein at physiological pH. It has been observed that S/n UPM are fully biocompatible due to obvious reason of using natural polymer. In a separate experiment, the S/s UPM surface was modified with pluronic F-68 to tune biocompatibility which provides evidences for safety and tolerability of the S/s UPM as well. In nutshell, the proposed system could successfully be used for the delivery of proteins, and moreover, the system can be tailored to impart desired properties at any stage of layering especially in terms of drug release and to retain the integrity of proteins.
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Tan JY, Ren YR, Yao SJ. Preparation of micro-scaled multilayer capsules of poly-dimethyl-diallyl-ammonium chloride and sodium cellulose sulfate by layer-by-layer self-assembly technique. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.11.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lessig J, Neu B, Reibetanz U. Influence of layer-by-layer (LbL) assembled CaCO(3)-carriers on macrophage signaling cascades. Biomacromolecules 2010; 12:105-15. [PMID: 21142145 DOI: 10.1021/bm101069s] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Numerous drawbacks in the current medical treatment of chronic inflammations still require the design of sensitive and gentle methods without side effects. Layer-by-layer (LbL) coated microcarriers loaded with a cocktail of anti-inflammatory substances are supposed to be a new challenge for the medical treatment of immunoreactive cells such as macrophages and polymorphonuclear leukocytes (PMN). Nevertheless, microcarrier application requires biocompatibility of the system itself. Therefore, the aim of this study was to investigate microcarrier CaCO(3) systems LbL coated with biopolymers and a lipid bilayer, respectively, regarding the maintenance of the release of pro-inflammatory cytokines as TNFα and IL1β at normal levels. Only marginal increases after microcarrier interaction were allowed. The required microcarrier optimization results in the maximum use of a carrier/cell ratio of 1:1 for biopolymer-coated carriers and a carrier/cell ratio up to 5:1 for lipid-bilayer-coated carriers during the coincubation with macrophage-like cells. Low formation of reactive oxygen species (ROS) could not be maintained by either reduced carrier/cell ratios or by a surface lipid bilayer.
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Affiliation(s)
- Jacqueline Lessig
- Translational Centre for Regenerative Medicine (TRM), Universität Leipzig, Germany.
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GELATION IN ALGINATE SOLUTIONS AND ITS APPLICATIONS IN CARTILAGE TISSUE-ENGINEERING AND DRUG CONTROLLED RELEASE. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.10221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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De Cock LJ, De Koker S, De Geest BG, Grooten J, Vervaet C, Remon JP, Sukhorukov GB, Antipina MN. Wirkstoffverabreichung mithilfe polymerer Mehrschichtkapseln. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906266] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Boddohi S, Kipper MJ. Engineering nanoassemblies of polysaccharides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:2998-3016. [PMID: 20593437 DOI: 10.1002/adma.200903790] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Polysaccharides offer a wealth of biochemical and biomechanical functionality that can be used to develop new biomaterials. In mammalian tissues, polysaccharides often exhibit a hierarchy of structure, which includes assembly at the nanometer length scale. Furthermore, their biochemical function is determined by their nanoscale organization. These biological nanostructures provide the inspiration for developing techniques to tune the assembly of polysaccharides at the nanoscale. These new polysaccharide nanostructures are being used for the stabilization and delivery of drugs, proteins, and genes, the engineering of cells and tissues, and as new platforms on which to study biochemistry. In biological systems polysaccharide nanostructures are assembled via bottom-up processes. Many biologically derived polysaccharides behave as polyelectrolytes, and their polyelectrolyte nature can be used to tune their bottom-up assembly. New techniques designed to tune the structure and composition of polysaccharides at the nanoscale are enabling researchers to study in detail the emergent biological properties that arise from the nanoassembly of these important biological macromolecules.
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Affiliation(s)
- Soheil Boddohi
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO, USA
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