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Dos Santos ÉM, Gaspar RC, De Ceulaer F, Chiu HC, De Wever P, Mazzola PG, Fardim P. Tailored alginate sponges loaded with κ-carrageenan beads for controlled release of curcumin. Int J Biol Macromol 2024; 280:135839. [PMID: 39306151 DOI: 10.1016/j.ijbiomac.2024.135839] [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: 06/04/2024] [Revised: 09/17/2024] [Accepted: 09/18/2024] [Indexed: 09/25/2024]
Abstract
This study presents an innovative approach to develop and characterize an alginate sponge containing κ-carrageenan (κ-CRG) beads loaded with curcumin. The beads were fabricated using varying concentrations of κ-CRG, and their properties were extensively evaluated using inverted phase-contrast microscopy, Scanning Electron Microscopy (SEM), FTIR, swelling behavior, mass distribution, encapsulation efficiency, in vitro drug release and kinetics of drug release. Beads formulated with specific concentrations of κ-CRG that exhibited optimal performance were then integrated into an alginate sponge matrix, which underwent similar comprehensive testing procedures as the individual beads. The characterized beads displayed a spherical morphology, a notable swelling degree of approximately 146 %, excellent mass uniformity, encapsulation efficiencies higher than 90 % and drug release rate exceeding 70 %. Moreover, the alginate sponge formulation demonstrated a satisfactory drug release profile of 67.9 ± 0.6 %. In terms of drug release kinetics, the Higuchi model was the most effective in explaining the release of curcumin from beads and sponge. These findings underscore the potential of both the beads and the sponge as effective vehicles for the controlled delivery of curcumin, positioning them as promising candidates for pharmaceutical applications across various fields.
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Affiliation(s)
- Érica Mendes Dos Santos
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium; Faculty of Pharmaceutical Sciences, Universidade de Campinas (UNICAMP), Rua Cândido Portinari, 200, Campinas, São Paulo 13083-871, Brazil
| | - Rita Caiado Gaspar
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium
| | - Femke De Ceulaer
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium
| | - Hao-Chun Chiu
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium
| | - Pieter De Wever
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium
| | - Priscila Gava Mazzola
- Faculty of Pharmaceutical Sciences, Universidade de Campinas (UNICAMP), Rua Cândido Portinari, 200, Campinas, São Paulo 13083-871, Brazil
| | - Pedro Fardim
- Chemical and Biochemical Reactor Engineering and Safety (CREaS), Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200f, box 2424, 3001 Leuven, Belgium.
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2
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Costa D, Milow B, Ganesan K. Impact of Weak Organic Acids as Coagulants on Tailoring the Properties of Cellulose Aerogel Beads. Chemistry 2024; 30:e202401794. [PMID: 38945825 DOI: 10.1002/chem.202401794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/11/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
Tailoring the properties of cellulose aerogel beads was investigated in the present study by using weak organic acids as coagulants. Three different weak acids were specifically chosen, acetic acid, lactic acid and citric acid. For comparative studies, a strong acid, hydrochloric acid was examined. The production of aerogel beads by conventional dropping technique was controlled and optimized for weak acids. Aerogels were characterized by density analyses, scanning electron microscopy, nitrogen adsorption-desorption analysis, X-ray powder diffractometry and IR spectroscopy. In common, all the aerogel beads showed interconnected nanofibrillar network, high specific surface area, high pore volume, high porosity and meso- and macroporous structure. In particular, when the weakest acid (acetic acid) was used as coagulant in the regeneration bath, the lowest shrinkage was observed. As a result, the cellulose aerogel beads produced from acetic acid showed the highest values of specific surface area (423 m2 g-1) and pore volume (3.6 cm3 g-1). The porous structure can be tuned by the choice of regeneration bath, which has either strong acid or a high concentration of weak acid. The aerogel beads were pure and showed cellulose II crystallinity. Hence this study paves an alternative path way to tailor the properties of cellulose aerogel beads.
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Affiliation(s)
- Diogo Costa
- German Aerospace Center (DLR), Institute of Materials Research, Linder Hoehe, 51147, Cologne, Germany
- University of Cologne (UoC), Department of Chemistry, Nanostructured Cellular Materials, Greinstraße 6, 50939, Cologne, Germany
| | - Barbara Milow
- German Aerospace Center (DLR), Institute of Materials Research, Linder Hoehe, 51147, Cologne, Germany
- University of Cologne (UoC), Department of Chemistry, Nanostructured Cellular Materials, Greinstraße 6, 50939, Cologne, Germany
| | - Kathirvel Ganesan
- German Aerospace Center (DLR), Institute of Materials Research, Linder Hoehe, 51147, Cologne, Germany
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3
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Fischer J, Thümmler K, Zlotnikov I, Mikhailova D, Fischer S. Synthesis of Cellulose Acetate Butyrate Microspheres as Precursor for Hard Carbon-Based Electrodes in Symmetric Supercapacitors. Polymers (Basel) 2024; 16:2176. [PMID: 39125201 PMCID: PMC11314155 DOI: 10.3390/polym16152176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Cellulose microspheres have a wide range of applications due to their unique properties and versatility. Various preparation methods have been explored to tailor these microspheres for specific applications. Among these methods, the acetate method using cellulose acetate is well known. However, replacement of the acetate group through the butyrate group significantly extends the variety of morphological properties. In the present work, microspheres based on cellulose acetate butyrate are being developed with modified characteristics in terms of particle size, porosity, surface morphology and the inner structure of the microspheres. While the inner structure of cellulose acetate microspheres is predominantly porous, microspheres prepared from cellulose acetate butyrate are mainly filled or contain several smaller microspheres. Carbon materials from cellulose acetate butyrate microspheres exhibit a high specific surface area of 567 m2 g-1, even without further activation. Activation processes can further increase the specific surface area, accompanied by an adaptation of the pore structure. The prepared carbons show promising results in symmetrical supercapacitors with aqueous 6 M KOH electrolytes. Activated carbons derived from cellulose acetate butyrate microspheres demonstrate an energy density of 12 Wh kg-1 at a power density of 0.9 kW kg-1.
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Affiliation(s)
- Johanna Fischer
- Institute of Plant and Wood Chemistry, TUD Dresden University of Technology, Pienner Str. 19, 01737 Tharandt, Germany;
- Leibniz Institute for Solid State and Material Research (IFW) Dresden e.V., Institute for Materials Chemistry (IMC), Helmholtzstraße 20, 01069 Dresden, Germany;
| | - Katrin Thümmler
- Institute of Plant and Wood Chemistry, TUD Dresden University of Technology, Pienner Str. 19, 01737 Tharandt, Germany;
| | - Igor Zlotnikov
- B CUBE—Center for Molecular Bioengineering, TUD Dresden University of Technology, Tatzberg 41, 01307 Dresden, Germany;
| | - Daria Mikhailova
- Leibniz Institute for Solid State and Material Research (IFW) Dresden e.V., Institute for Materials Chemistry (IMC), Helmholtzstraße 20, 01069 Dresden, Germany;
| | - Steffen Fischer
- Institute of Plant and Wood Chemistry, TUD Dresden University of Technology, Pienner Str. 19, 01737 Tharandt, Germany;
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4
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K AK, Jujaru M, Panwar J, Gupta S. Non-derivatizing solvent assisted waste-derived cellulose/ MOF composite porous matrix for efficient metal ion removal: comprehensive analysis of batch and continuous packed-bed column sorption studies. RSC Adv 2024; 14:20254-20277. [PMID: 38953057 PMCID: PMC11215655 DOI: 10.1039/d4ra02566k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 06/17/2024] [Indexed: 07/03/2024] Open
Abstract
The use of metal-organic frameworks (MOFs) for wastewater treatment in continuous operation is a major challenge. To address this, the present study demonstrates the eco-friendly and economic synthesis of Ca-MOF immobilized cellulose beads (Ca-MOF-CB) derived from paper waste. The synthesized Ca-MOF-CB were characterized using standard analytical techniques. Batch sorption studies were performed to check the effect of cellulose composition (wt%), Ca-MOF loading, contact time, and initial metal ion (Pb2+, Cd2+, and Cu2+) concentration. Ca-MOF-CB beads exhibited outstanding equilibrium sorption capacities for Pb2+, Cd2+, and Cu2+, with estimated values of 281.22 ± 7.8, 104.01 ± 10.58, and 114.21 ± 9.68 mg g-1, respectively. Different non-linear isotherms and kinetic models were applied which confirmed the spontaneous, endothermic reactions for the physisorption of Pb2+, Cd2+, and Cu2+. Based on the highest equilibrium sorption capacity for Pb2+ ion, in-depth parametric column studies were conducted in an indigenously developed packed-bed column set-up. The effect of packed-bed height (10 and 20 cm), inlet flow rate (5 and 10 mL min-1), and inlet Pb2+ ion concentration (200, 300, and 500 mg L-1) were studied. The breakthrough curves obtained at different operating conditions were fitted with the empirical models viz. the bed depth service time (BDST), Yoon-Nelson, Thomas, and Yan to estimate the column design parameters. In order to determine the financial implications at large-scale industrial operations, an affordable synthesis cost of 1 kg of Ca-MOF-CB was estimated. Conclusively, the present study showed the feasibility of the developed Ca-MOF-CB for the continuous removal of metal ions at an industrial scale.
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Affiliation(s)
- Anil Kumar K
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani 333 031 India
| | - Mohan Jujaru
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani 333 031 India
| | - Jitendra Panwar
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani 333 031 India
| | - Suresh Gupta
- Department of Chemical Engineering, Birla Institute of Technology and Science Pilani 333 031 India
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Wu SH, Rethi L, Pan WY, Nguyen HT, Chuang AEY. Emerging horizons and prospects of polysaccharide-constructed gels in the realm of wound healing. Colloids Surf B Biointerfaces 2024; 235:113759. [PMID: 38280240 DOI: 10.1016/j.colsurfb.2024.113759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/26/2023] [Accepted: 01/13/2024] [Indexed: 01/29/2024]
Abstract
Polysaccharides, with the abundant availability, biodegradability, and inherent safety, offer a vast array of promising applications. Leveraging the remarkable attributes of polysaccharides, biomimetic and multifunctional hydrogels have emerged as a compelling avenue for efficacious wound dressing. The gels emulate the innate extracellular biomatrix as well as foster cellular proliferation. The distinctive structural compositions and profusion of functional groups within polysaccharides confer excellent physical/chemical traits as well as distinct restorative involvements. Gels crafted from polysaccharide matrixes serve as a robust defense against bacterial threats, effectively shielding wounds from harm. This comprehensive review delves into wound physiology, accentuating the significance of numerous polysaccharide-based gels in the wound healing context. The discourse encompasses an exploration of polysaccharide hydrogels tailored for diverse wound types, along with an examination of various therapeutic agents encapsulated within hydrogels to facilitate wound repair, incorporating recent patent developments. Within the scope of this manuscript, the perspective of these captivating gels for promoting optimal healing of wounds is vividly depicted. Nevertheless, the pursuit of knowledge remains ongoing, as further research is warranted to bioengineer progressive polysaccharide gels imbued with adaptable features. Such endeavors hold the promise of unlocking substantial potential within the realm of wound healing, propelling us toward multifaceted and sophisticated solutions.
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Affiliation(s)
- Shen-Han Wu
- Taipei Medical University Hospital, Taipei 11031, Taiwan; Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan
| | - Lekshmi Rethi
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; International Ph.D Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan
| | - Wen-Yu Pan
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, New Taipei City 235603, Taiwan; Ph.D Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, New Taipei City 235603, Taiwan
| | - Hieu Trung Nguyen
- Department of Orthopedics and Trauma, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 700000, Viet Nam
| | - Andrew E-Y Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; International Ph.D Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, New Taipei City, Taiwan; Cell Physiology and Molecular Image Research Center, Taipei Medical University-Wan Fang Hospital, Taipei 11696, Taiwan.
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Lukova P, Katsarov P, Pilicheva B. Application of Starch, Cellulose, and Their Derivatives in the Development of Microparticle Drug-Delivery Systems. Polymers (Basel) 2023; 15:3615. [PMID: 37688241 PMCID: PMC10490215 DOI: 10.3390/polym15173615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Micro- and nanotechnologies have been intensively studied in recent years as novel platforms for targeting and controlling the delivery of various pharmaceutical substances. Microparticulate drug delivery systems for oral, parenteral, or topical administration are multiple unit formulations, considered as powerful therapeutic tools for the treatment of various diseases, providing sustained drug release, enhanced drug stability, and precise dosing and directing the active substance to specific sites in the organism. The properties of these pharmaceutical formulations are highly dependent on the characteristics of the polymers used as drug carriers for their preparation. Starch and cellulose are among the most preferred biomaterials for biomedical applications due to their biocompatibility, biodegradability, and lack of toxicity. These polysaccharides and their derivatives, like dextrins (maltodextrin, cyclodextrins), ethylcellulose, methylcellulose, hydroxypropyl methylcellulose, carboxy methylcellulose, etc., have been widely used in pharmaceutical technology as excipients for the preparation of solid, semi-solid, and liquid dosage forms. Due to their accessibility and relatively easy particle-forming properties, starch and cellulose are promising materials for designing drug-loaded microparticles for various therapeutic applications. This study aims to summarize some of the basic characteristics of starch and cellulose derivatives related to their potential utilization as microparticulate drug carriers in the pharmaceutical field.
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Affiliation(s)
- Paolina Lukova
- Department of Pharmacognosy and Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria;
| | - Plamen Katsarov
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria;
- Research Institute at Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
| | - Bissera Pilicheva
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria;
- Research Institute at Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
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De Wever P, De Schepper C, Poleunis C, Delcorte A, Courtin CM, Fardim P. Topochemical Design of Cellulose-Based Carriers for Immobilization of Endoxylanase. Biomacromolecules 2023; 24:132-140. [PMID: 36542490 DOI: 10.1021/acs.biomac.2c00998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Xylooligosaccharides (XOSs) gained much attention for their use in food and animal feed, attributed to their prebiotic function. These short-chained carbohydrates can be enzymatically produced from xylan, one of the most prevalent forms of hemicellulose. In this work, endo-1,4-β-xylanase from Thermotoga maritima was immobilized on cellulose-based beads with the goal of producing xylooligosaccharides with degrees of polymerization (DPs) in the range of 4-6 monomeric units. More specifically, the impact of different spacer arms, tethers connecting the enzyme with the particle, on the expressed enzymatic activity and oligosaccharide yield was investigated. After surface functionalization of the cellulose beads, the presence of amines was confirmed with time of flight secondary ion mass spectrometry (TOF-SIMS), and the influence of different spacer arms on xylanase activity was established. Furthermore, XOSs (DPs 2-6) with up to 58.27 mg/g xylan were obtained, which were greatly enriched in longer oligosaccharides. Approximately 80% of these XOSs displayed DPs between 4 and 6. These findings highlight the importance of topochemical engineering of carriers to influence enzyme activity, and the work puts forward an enzymatic system focusing on the production of longer xylooligosaccharides.
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Affiliation(s)
- Pieter De Wever
- Chemical and Biochemical Reactor Engineering and Safety Section, Department of Chemical engineering, KU Leuven, Celestijnenlaan 200f, P.O. Box 2424, 3001Leuven, Belgium
| | - Charlotte De Schepper
- Laboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems, KU Leuven, Kasteelpark Arenberg 20,3001Leuven, Belgium
| | - Claude Poleunis
- Institute of Condensed Matter and Nanosciences, UCLouvain, Place Louis Pasteur 1, Box L4.01.10, 1348Louvain-la-Neuve, Belgium
| | - Arnaud Delcorte
- Institute of Condensed Matter and Nanosciences, UCLouvain, Place Louis Pasteur 1, Box L4.01.10, 1348Louvain-la-Neuve, Belgium
| | - Christophe M Courtin
- Laboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems, KU Leuven, Kasteelpark Arenberg 20,3001Leuven, Belgium
| | - Pedro Fardim
- Chemical and Biochemical Reactor Engineering and Safety Section, Department of Chemical engineering, KU Leuven, Celestijnenlaan 200f, P.O. Box 2424, 3001Leuven, Belgium
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8
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Novel cationic cellulose beads for oral delivery of poorly water-soluble drugs. Int J Pharm X 2022; 5:100146. [PMID: 36593986 PMCID: PMC9804101 DOI: 10.1016/j.ijpx.2022.100146] [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: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Cellulose beads emerge as carriers for poorly water-soluble drugs due to their eco-friendly raw materials and favorable porous structure. However, drug dissolution may be limited by their poor swelling ability and the presence of closed pores caused by shrinkage of the pristine cellulose beads. In this study, novel cellulose beads that can swell in acidic environment were prepared by introducing ethylenediamine (EDA) on dialdehyde cellulose (DAC), thereby addressing the shrinkage and closed pore problem of cellulose beads. The effect of the ratio of EDA on the swelling behavior and amine content of beads was studied. Three model drugs with different physicochemical properties were selected to study the physical state of loaded drugs and their release behavior. According to the results of XRPD and DSC, indomethacin and itraconazole loaded in the beads were amorphous at a drug loading of 20%, but fenofibrate was partially crystalline. Both bead size and the ratio of amine groups influenced the release behavior of the model drugs. The in vitro dissolution results showed that the cationic beads greatly improved the solubility and dissolution rate of the drug compared with the crystalline drug. Beads with a small size and high ratio of EDA tend to achieve a better drug dissolution rate and cumulative release percentage. Physical stability studies of the itraconazole-loaded beads were also implemented under four different temperature/humidity conditions for up to two months. The results showed that crystallization only appeared after two months of storage at 40°/75% RH, and the drug maintained a non-crystalline state in the other three storage conditions (0 °C/0 %RH, 0 °C/32 %RH, 25 °C/32 %RH). In conclusion, the novel pH-responsive cationic cellulose beads show great potential as a carrier for improving the rate and extent of dissolution of poorly soluble drugs and maintaining supersaturation.
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Key Words
- AC, Acetone
- Amorphous state
- CBs, Cellulose beads
- Cationic cellulose beads
- DAC, Dialdehyde cellulose
- DCM, Dichloromethane
- DMSO, Dimethyl sulfoxide
- EDA, Ethylenediamine
- EtOH, Ethanol
- FNB, Fenofibrate
- FTIR, Fourier-transform infrared spectroscopy
- HPLC, High performance liquid chromatography
- ILs, Ionic liquids
- IND, Indomethacin
- ITZ, Itraconazole
- MeOH, Methanol
- NASDs, Amorphous solid dispersions
- NCEs, New Chemical Entities
- NMMO, N-methylmorpholine N –oxide
- Poorly water-soluble drugs
- SGF, Simulated gastric fluid
- Solubility improvement
- Supersaturation
- Swelling
- TBA, Tert-butanol
- Tg, Glass transition temperature
- XRPD, X-ray powder diffraction
- mDSC, Modulated differential scanning calorimetry
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Wever PD, Janssens J, Fardim P. Fabrication of cellulose cryogel beads via room temperature dissolution in onium hydroxides. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2022. [DOI: 10.1016/j.carpta.2022.100206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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10
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Cellulose Cryogels as Promising Materials for Biomedical Applications. Int J Mol Sci 2022; 23:ijms23042037. [PMID: 35216150 PMCID: PMC8880007 DOI: 10.3390/ijms23042037] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 02/01/2023] Open
Abstract
The availability, biocompatibility, non-toxicity, and ease of chemical modification make cellulose a promising natural polymer for the production of biomedical materials. Cryogelation is a relatively new and straightforward technique for producing porous light and super-macroporous cellulose materials. The production stages include dissolution of cellulose in an appropriate solvent, regeneration (coagulation) from the solution, removal of the excessive solvent, and then freezing. Subsequent freeze-drying preserves the micro- and nanostructures of the material formed during the regeneration and freezing steps. Various factors can affect the structure and properties of cellulose cryogels, including the cellulose origin, the dissolution parameters, the solvent type, and the temperature and rate of freezing, as well as the inclusion of different fillers. Adjustment of these parameters can change the morphology and properties of cellulose cryogels to impart the desired characteristics. This review discusses the structure of cellulose and its properties as a biomaterial, the strategies for cellulose dissolution, and the factors affecting the structure and properties of the formed cryogels. We focus on the advantages of the freeze-drying process, highlighting recent studies on the production and application of cellulose cryogels in biomedicine and the main cryogel quality characteristics. Finally, conclusions and prospects are presented regarding the application of cellulose cryogels in wound healing, in the regeneration of various tissues (e.g., damaged cartilage, bone tissue, and nerves), and in controlled-release drug delivery.
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11
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Xie F, Fardim P, Van den Mooter G. Porous soluble dialdehyde cellulose beads: A new carrier for the formulation of poorly water-soluble drugs. Int J Pharm 2022; 615:121491. [PMID: 35063594 DOI: 10.1016/j.ijpharm.2022.121491] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 11/19/2022]
Abstract
Cellulose beads are porous spherical particles with promising futures for drug delivery applications. In this study, novel dialdehyde cellulose (DAC) beads are developed by periodate oxidation of pristine cellulose for oral delivery of weakly basic poorly water-soluble drugs. Diazepam and itraconazole were studied as model drugs. Drug loadings in DAC beads up to 40% were obtained. Depending on the drug loading, complete or partial amorphization of drugs in DAC beads was observed. Drugs in the amorphous state not only presented a higher extent of dissolution from the DAC beads compared to the crystalline model drug, but the obtained concentration was also supersaturated. This supersaturation is attributed to the amorphization of the drugs in the beads in conjunction with the dissolution of the DAC beads at a neutral pH of the dissolution medium. Further, the effects of two different solvent systems used in the lyophilization step during the preparation of the DAC beads (100% water and 90/10% tert-butanol/water mixture) on their structure were investigated. Interestingly, the selection of the solvent system greatly impacted the bead structure, resulting in radically different drug loading capacity, physical properties, and release behavior of the model drugs. In summary, this is the first study that reports on exploiting soluble, porous, dialdehyde cellulose beads, showing great potential as a carrier for improving the rate and extent of dissolution of poorly soluble drugs and maintaining supersaturation.
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Affiliation(s)
- Fan Xie
- Drug Delivery and Disposition, KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Campus Gasthuisberg ON2, Herestraat 49 b921, 3000 Leuven, Belgium
| | - Pedro Fardim
- Bio&Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, KU Leuven, 3000 Leuven, Belgium
| | - Guy Van den Mooter
- Drug Delivery and Disposition, KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Campus Gasthuisberg ON2, Herestraat 49 b921, 3000 Leuven, Belgium.
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12
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Li C, Wu J, Shi H, Xia Z, Sahoo JK, Yeo J, Kaplan DL. Fiber-Based Biopolymer Processing as a Route toward Sustainability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105196. [PMID: 34647374 PMCID: PMC8741650 DOI: 10.1002/adma.202105196] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/04/2021] [Indexed: 05/02/2023]
Abstract
Some of the most abundant biomass on earth is sequestered in fibrous biopolymers like cellulose, chitin, and silk. These types of natural materials offer unique and striking mechanical and functional features that have driven strong interest in their utility for a range of applications, while also matching environmental sustainability needs. However, these material systems are challenging to process in cost-competitive ways to compete with synthetic plastics due to the limited options for thermal processing. This results in the dominance of solution-based processing for fibrous biopolymers, which presents challenges for scaling, cost, and consistency in outcomes. However, new opportunities to utilize thermal processing with these types of biopolymers, as well as fibrillation approaches, can drive renewed opportunities to bridge this gap between synthetic plastic processing and fibrous biopolymers, while also holding sustainability goals as critical to long-term successful outcomes.
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Affiliation(s)
- Chunmei Li
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Junqi Wu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Haoyuan Shi
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca NY 14853, USA
| | - Zhiyu Xia
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Jingjie Yeo
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca NY 14853, USA
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
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13
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Cellulose-based hydrogel beads: Preparation and characterization. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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14
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Liyanage S, Acharya S, Parajuli P, Shamshina JL, Abidi N. Production and Surface Modification of Cellulose Bioproducts. Polymers (Basel) 2021; 13:3433. [PMID: 34641248 PMCID: PMC8512298 DOI: 10.3390/polym13193433] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/29/2021] [Accepted: 10/02/2021] [Indexed: 12/17/2022] Open
Abstract
Petroleum-based synthetic plastics play an important role in our life. As the detrimental health and environmental effects of synthetic plastics continue to increase, the renewable, degradable and recyclable properties of cellulose make subsequent products the "preferred environmentally friendly" alternatives, with a small carbon footprint. Despite the fact that the bioplastic industry is growing rapidly with many innovative discoveries, cellulose-based bioproducts in their natural state face challenges in replacing synthetic plastics. These challenges include scalability issues, high cost of production, and most importantly, limited functionality of cellulosic materials. However, in order for cellulosic materials to be able to compete with synthetic plastics, they must possess properties adequate for the end use and meet performance expectations. In this regard, surface modification of pre-made cellulosic materials preserves the chemical profile of cellulose, its mechanical properties, and biodegradability, while diversifying its possible applications. The review covers numerous techniques for surface functionalization of materials prepared from cellulose such as plasma treatment, surface grafting (including RDRP methods), and chemical vapor and atomic layer deposition techniques. The review also highlights purposeful development of new cellulosic architectures and their utilization, with a specific focus on cellulosic hydrogels, aerogels, beads, membranes, and nanomaterials. The judicious choice of material architecture combined with a specific surface functionalization method will allow us to take full advantage of the polymer's biocompatibility and biodegradability and improve existing and target novel applications of cellulose, such as proteins and antibodies immobilization, enantiomers separation, and composites preparation.
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Affiliation(s)
| | | | | | | | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Texas Tech University, Lubbock, TX 79409-5019, USA; (S.L.); (S.A.); (P.P.); (J.L.S.)
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15
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Gomez-Maldonado D, Filpponen I, Johansson LS, Waters MN, Vega Erramuspe IB, Peresin MS. Environmentally dependent adsorption of 2,4-dichlorophenol on cellulose-chitosan self-assembled composites. Biopolymers 2021; 112:e23434. [PMID: 34000071 DOI: 10.1002/bip.23434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/19/2021] [Accepted: 05/06/2021] [Indexed: 11/07/2022]
Abstract
With the increasing need for bio-based materials developed by environmentally friendly procedures, this work shows a green method to develop shape-controlled structures from cellulose dissolving pulp coated by chitosan. This material was then tested to adsorb a common and widespread pollutant, 2,4-dichlorophenol under different pH conditions (5.5 and 9). Herein it was noticed that the adsorption only occurred in acidic pH (5.5) where electrostatic interaction drove the adsorption, demonstrating the potential to tune the response under desired conditions only. The adsorption was successful in the hydrogel structure with an adsorption capacity of 905 ± 71 mg/g from a solution with 16.6 ppm; furthermore, adsorption was also possible with dried hydrogel structures, presenting a maximum of adsorption of 646 ± 50 mg/g in a similar 16.6 ppm solution. Finally, adsorbent regeneration was successfully tested for both, dry (rewetted) and never-dried states, showing improved adsorption after regeneration in the case of the never dried hydrogel structures.
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Affiliation(s)
- Diego Gomez-Maldonado
- Forest Products Development Center, School of Forestry and Wildlife Science, Auburn University, Auburn, Alabama, USA
| | - Ilari Filpponen
- Forest Products Development Center, School of Forestry and Wildlife Science, Auburn University, Auburn, Alabama, USA.,Department of Chemical Engineering, Alabama Center for Paper and Bioresource Engineering (AC-PABE), Auburn University, Auburn, Alabama, USA
| | - Leena-Sisko Johansson
- Department of Bioprocesses and Biosystems, School of Chemical Engineering, Aalto University, Espoo, Finland
| | - Matthew N Waters
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, Alabama, USA
| | - Iris Beatriz Vega Erramuspe
- Forest Products Development Center, School of Forestry and Wildlife Science, Auburn University, Auburn, Alabama, USA
| | - Maria S Peresin
- Forest Products Development Center, School of Forestry and Wildlife Science, Auburn University, Auburn, Alabama, USA
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16
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Xie F, De Wever P, Fardim P, Van den Mooter G. TEMPO-Oxidized Cellulose Beads as Potential pH-Responsive Carriers for Site-Specific Drug Delivery in the Gastrointestinal Tract. Molecules 2021; 26:molecules26041030. [PMID: 33672078 PMCID: PMC7919685 DOI: 10.3390/molecules26041030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/29/2021] [Accepted: 02/10/2021] [Indexed: 11/16/2022] Open
Abstract
The development of controlled drug delivery systems based on bio-renewable materials is an emerging strategy. In this work, a controlled drug delivery system based on mesoporous oxidized cellulose beads (OCBs) was successfully developed by a facile and green method. The introduction of the carboxyl groups mediated by the TEMPO(2,2,6,6-tetramethylpiperidine-1-oxyradical)/NaClO/NaClO2 system presents the pH-responsive ability to cellulose beads, which can retain the drug in beads at pH = 1.2 and release at pH = 7.0. The release rate can be controlled by simply adjusting the degree of oxidation to achieve drug release at different locations and periods. A higher degree of oxidation corresponds to a faster release rate, which is attributed to a higher degree of re-swelling and higher hydrophilicity of OCBs. The zero-order release kinetics of the model drugs from the OCBs suggested a constant drug release rate, which is conducive to maintaining blood drug concentration, reducing side effects and administration frequency. At the same time, the effects of different model drugs and different drug-loading solvents on the release behavior and the physical state of the drugs loaded in the beads were studied. In summary, the pH-responsive oxidized cellulose beads with good biocompatibility, low cost, and adjustable release rate have shown great potential in the field of controlled drug release.
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Affiliation(s)
- Fan Xie
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
| | - Pieter De Wever
- Bio & Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, KU Leuven, 3000 Leuven, Belgium; (P.D.W.); (P.F.)
| | - Pedro Fardim
- Bio & Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, KU Leuven, 3000 Leuven, Belgium; (P.D.W.); (P.F.)
| | - Guy Van den Mooter
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
- Correspondence: ; Tel.: +32-16-330-304
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17
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De Wever P, de Oliveira-Silva R, Marreiros J, Ameloot R, Sakellariou D, Fardim P. Topochemical Engineering of Cellulose-Carboxymethyl Cellulose Beads: A Low-Field NMR Relaxometry Study. Molecules 2020; 26:E14. [PMID: 33375128 PMCID: PMC7792948 DOI: 10.3390/molecules26010014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 12/14/2022] Open
Abstract
The demand for more ecological, highly engineered hydrogel beads is driven by a multitude of applications such as enzyme immobilization, tissue engineering and superabsorbent materials. Despite great interest in hydrogel fabrication and utilization, the interaction of hydrogels with water is not fully understood. In this work, NMR relaxometry experiments were performed to study bead-water interactions, by probing the changes in bead morphology and surface energy resulting from the incorporation of carboxymethyl cellulose (CMC) into a cellulose matrix. The results show that CMC improves the swelling capacity of the beads, from 1.99 to 17.49, for pure cellulose beads and beads prepared with 30% CMC, respectively. Changes in water mobility and interaction energy were evaluated by NMR relaxometry. Our findings indicate a 2-fold effect arising from the CMC incorporation: bead/water interactions were enhanced by the addition of CMC, with minor additions having a greater effect on the surface energy parameter. At the same time, bead swelling was recorded, leading to a reduction in surface-bound water, enhancing water mobility inside the hydrogels. These findings suggest that topochemical engineering by adjusting the carboxymethyl cellulose content allows the tuning of water mobility and porosity in hybrid beads and potentially opens up new areas of application for this biomaterial.
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Affiliation(s)
- Pieter De Wever
- Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, Department of Chemical engineering, KU Leuven, Celestijnenlaan 200f, P.O. Box 2424, 3001 Leuven, Belgium;
| | - Rodrigo de Oliveira-Silva
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, Department of Microbial and Molecular Systems, Celestijnenlaan 200f, P.O. Box 2454, 3001 Leuven, Belgium; (R.d.O.-S.); (J.M.); (R.A.); (D.S.)
| | - João Marreiros
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, Department of Microbial and Molecular Systems, Celestijnenlaan 200f, P.O. Box 2454, 3001 Leuven, Belgium; (R.d.O.-S.); (J.M.); (R.A.); (D.S.)
| | - Rob Ameloot
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, Department of Microbial and Molecular Systems, Celestijnenlaan 200f, P.O. Box 2454, 3001 Leuven, Belgium; (R.d.O.-S.); (J.M.); (R.A.); (D.S.)
| | - Dimitrios Sakellariou
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, Department of Microbial and Molecular Systems, Celestijnenlaan 200f, P.O. Box 2454, 3001 Leuven, Belgium; (R.d.O.-S.); (J.M.); (R.A.); (D.S.)
| | - Pedro Fardim
- Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, Department of Chemical engineering, KU Leuven, Celestijnenlaan 200f, P.O. Box 2424, 3001 Leuven, Belgium;
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18
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Shah A, Kuddushi M, Mondal K, Jain M, Malek N. Magnetically driven release of dopamine from magnetic-non-magnetic cellulose beads. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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19
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Parajuli P, Acharya S, Hu Y, Abidi N. Cellulose‐based monoliths with enhanced surface area and porosity. J Appl Polym Sci 2020. [DOI: 10.1002/app.48975] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Prakash Parajuli
- Fiber and Biopolymer Research Institute, Department of Plant and Soil ScienceTexas Tech University Lubbock Texas
| | - Sanjit Acharya
- Fiber and Biopolymer Research Institute, Department of Plant and Soil ScienceTexas Tech University Lubbock Texas
| | - Yang Hu
- Fiber and Biopolymer Research Institute, Department of Plant and Soil ScienceTexas Tech University Lubbock Texas
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Plant and Soil ScienceTexas Tech University Lubbock Texas
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20
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Cellulose Beads Derived from Waste Textiles for Drug Delivery. Polymers (Basel) 2020; 12:polym12071621. [PMID: 32708280 PMCID: PMC7407133 DOI: 10.3390/polym12071621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 11/29/2022] Open
Abstract
Cellulose beads were successfully prepared from waste denim using a dissolution-regeneration approach with ionic liquids as the dissolving solvent. Cellulose beads with different morphologies were achieved by altering the dissolving and coagulating solvents. The morphological differences were quantified by N2 physisorption. The impact of morphology on the cellulose beads’ potential application was investigated in the context of drug loading and release. The results show that the fibrous morphology showed a better loading capacity than the globular analogue due to its higher surface area and pore volume.
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21
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Auriemma G, Russo P, Del Gaudio P, García-González CA, Landín M, Aquino RP. Technologies and Formulation Design of Polysaccharide-Based Hydrogels for Drug Delivery. Molecules 2020; 25:E3156. [PMID: 32664256 PMCID: PMC7397281 DOI: 10.3390/molecules25143156] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 01/31/2023] Open
Abstract
Polysaccharide-based hydrogel particles (PbHPs) are very promising carriers aiming to control and target the release of drugs with different physico-chemical properties. Such delivery systems can offer benefits through the proper encapsulation of many drugs (non-steroidal and steroidal anti-inflammatory drugs, antibiotics, etc) ensuring their proper release and targeting. This review discusses the different phases involved in the production of PbHPs in pharmaceutical technology, such as droplet formation (SOL phase), sol-gel transition of the droplets (GEL phase) and drying, as well as the different methods available for droplet production with a special focus on prilling technique. In addition, an overview of the various droplet gelation methods with particular emphasis on ionic cross-linking of several polysaccharides enabling the formation of particles with inner highly porous network or nanofibrillar structure is given. Moreover, a detailed survey of the different inner texture, in xerogels, cryogels or aerogels, each with specific arrangement and properties, which can be obtained with different drying methods, is presented. Various case studies are reported to highlight the most appropriate application of such systems in pharmaceutical field. We also describe the challenges to be faced for the breakthrough towards clinic studies and, finally, the market, focusing on the useful approach of safety-by-design (SbD).
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Affiliation(s)
- Giulia Auriemma
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Paola Russo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Pasquale Del Gaudio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
| | - Carlos A. García-González
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (C.A.G.-G.); (M.L.)
| | - Mariana Landín
- Department of Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (C.A.G.-G.); (M.L.)
| | - Rita Patrizia Aquino
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I—84084 Fisciano (SA), Italy; (G.A.); (P.R.); (P.D.G.)
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22
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Druel L, Kenkel A, Baudron V, Buwalda S, Budtova T. Cellulose Aerogel Microparticles via Emulsion-Coagulation Technique. Biomacromolecules 2020; 21:1824-1831. [PMID: 32011867 DOI: 10.1021/acs.biomac.9b01725] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cellulose aerogel microparticles were made via emulsification/nonsolvent induced phase separation/drying with supercritical CO2. Cellulose was dissolved in NaOH-based solvent with and without additives in order to control solution gelation. Two emulsions, cellulose solution/oil and cellulose nonsolvent/oil, were mixed to start nonsolvent induced phase separation (or coagulation) of cellulose inside each cellulose droplet leading to the formation of so-called microgels. Different options of triggering coagulation were tested, by coalescence of droplets of cellulose solution and cellulose nonsolvent and by diffusion of nonsolvent partly soluble in the oil, accompanied by coalescence. The second option was found to be the most efficient for stabilization of the shape of coagulated cellulose microgels. The influence of gelation on particle formation and aerogel properties was investigated. The aerogel particles' diameter was around a few tens of microns, and the specific surface area was 250-350 m2/g.
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Affiliation(s)
- Lucile Druel
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Amelie Kenkel
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.,Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Sytze Buwalda
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Tatiana Budtova
- MINES ParisTech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
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23
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Mystek K, Reid MS, Larsson PA, Wågberg L. In Situ Modification of Regenerated Cellulose Beads: Creating All-Cellulose Composites. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06273] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katarzyna Mystek
- Department of Fiber and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, Teknikringen 56−58, 100 44 Stockholm, Sweden
| | - Michael S. Reid
- Department of Fiber and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, Teknikringen 56−58, 100 44 Stockholm, Sweden
| | - Per A. Larsson
- Department of Fiber and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, Teknikringen 56−58, 100 44 Stockholm, Sweden
| | - Lars Wågberg
- Department of Fiber and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, Teknikringen 56−58, 100 44 Stockholm, Sweden
- Department of Fiber and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Teknikringen 56−58, 100 44 Stockholm, Sweden
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24
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Xie H, Pan Y, Xiao H, Liu H. Preparation and characterization of amphoteric cellulose–montmorillonite composite beads with a controllable porous structure. J Appl Polym Sci 2019. [DOI: 10.1002/app.47941] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hualei Xie
- School of Resources, Environment, and MaterialsGuangxi University Nanning Guangxi 530004 People's Republic of China
| | - Yuanfeng Pan
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical EngineeringGuangxi University Nanning Guangxi 530004 People's Republic of China
| | - Huining Xiao
- Department of Chemical EngineeringUniversity of New Brunswick Fredericton New Brunswick E3B 5A3 Canada
| | - Haiyan Liu
- School of Resources, Environment, and MaterialsGuangxi University Nanning Guangxi 530004 People's Republic of China
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25
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S. Sobhanadhas L, Kesavan L, Lastusaari M, Fardim P. Layered Double Hydroxide-Cellulose Hybrid Beads: A Novel Catalyst for Topochemical Grafting of Pulp Fibers. ACS OMEGA 2019; 4:320-330. [PMID: 31459331 PMCID: PMC6648918 DOI: 10.1021/acsomega.8b03061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 12/26/2018] [Indexed: 05/05/2023]
Abstract
Cellulose-based materials are very attractive for emerging bioeconomy as they are renewable, inexpensive, and environmentally friendly. Cellulose beads are spherical and porous and can be highly engineered to be used as catalyst support material. This type of inorganic catalysts is cost-effective and suitable for multiple re-usage and has been rarely explored in cellulose reaction research. In this work, NiFe-layered double hydroxide (LDH) was tailor-made in situ on anionic cellulose beads to form a hybrid, supported photocatalyst for the first time. The hybrid beads were prepared in a size larger than the pulp fibers in order to make the catalysis reaction heterogeneous in nature. Hydrophilic pulp fibers were converted into hydrophobic pulp by photocatalytic topochemical grafting of ethyl acrylate using the LDH-cellulose bead catalyst. The approach identified for the modification of the pulp fibers is the "hydrogen abstraction-UV photografting" because the low-energy, UV radiation-induced grafting offers advantages, such as a reduced degradation of the backbone polymer and a control over the grafting reaction. After grafting, the pulp fibers showed increased water repellency and unaltered thermal stability, indicating the hydrophobic, plasticizing nature of the pulp, which in turn accounts for its thermoformable behavior. These acrylated pulp fibers can be further designed/customized for waterproof or oil absorption applications.
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Affiliation(s)
- LijiSobhana S. Sobhanadhas
- Laboratory
of Fibre and Cellulose Technology, Åbo
Akademi University, Porthansgatan
3, FI-20500 Åbo, Finland
| | - Lokesh Kesavan
- Laboratory
of Materials Chemistry and Chemical Analysis, Turku University Centre
for Materials and Surfaces (MatSurf), University
of Turku, Vatselankatu
2, FI-20014 Turku, Finland
| | - Mika Lastusaari
- Laboratory
of Materials Chemistry and Chemical Analysis, Turku University Centre
for Materials and Surfaces (MatSurf), University
of Turku, Vatselankatu
2, FI-20014 Turku, Finland
| | - Pedro Fardim
- Laboratory
of Fibre and Cellulose Technology, Åbo
Akademi University, Porthansgatan
3, FI-20500 Åbo, Finland
- Department
of Chemical Engineering, KU Leuven, Celestijnenlaan 200F bus 2424, B-3001 Leuven, Belgium
- E-mail: (P.F.)
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27
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Ganesan K, Budtova T, Ratke L, Gurikov P, Baudron V, Preibisch I, Niemeyer P, Smirnova I, Milow B. Review on the Production of Polysaccharide Aerogel Particles. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2144. [PMID: 30384442 PMCID: PMC6265924 DOI: 10.3390/ma11112144] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/10/2018] [Accepted: 10/23/2018] [Indexed: 02/04/2023]
Abstract
A detailed study of the production of polysaccharide aerogel (bio-aerogel) particles from lab to pilot scale is surveyed in this article. An introduction to various droplets techniques available in the market is given and compared with the lab scale production of droplets using pipettes and syringes. An overview of the mechanisms of gelation of polysaccharide solutions together with non-solvent induced phase separation option is then discussed in the view of making wet particles. The main steps of particle recovery and solvent exchange are briefly described in order to pass through the final drying process. Various drying processes are overviewed and the importance of supercritical drying is highlighted. In addition, we present the characterization techniques to analyse the morphology and properties of the aerogels. The case studies of bio-aerogel (agar, alginate, cellulose, chitin, κ-carrageenan, pectin and starch) particles are reviewed. Potential applications of polysaccharide aerogel particles are briefly given. Finally, the conclusions summarize the prospects of the potential scale-up methods for producing bio-aerogel particles.
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Affiliation(s)
- Kathirvel Ganesan
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Tatiana Budtova
- MINES Paris Tech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.
| | - Lorenz Ratke
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Imke Preibisch
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Philipp Niemeyer
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Barbara Milow
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
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28
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Sobhanadhas L, Kesavan L, Fardim P. Topochemical Engineering of Cellulose-Based Functional Materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9857-9878. [PMID: 29694048 PMCID: PMC6151662 DOI: 10.1021/acs.langmuir.7b04379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Topochemical engineering is a method of designing the fractionation (disassembly) and fabrication (assembly) of highly engineered functional materials using a combination of molecular and supramolecular techniques. Cellulose is one of the naturally occurring biopolymers, currently considered to be an important raw material for the design and development of sustainable products and processes. This feature article deals with new insights into how cellulose can be processed and functionalized using topochemical engineering in order to create functional fibers, enhance biopolymer dissolution in water-based solvents, and control the shaping of porous materials. Subsequently, topochemical engineering of cellulose offers a variety of morphological structures such as highly engineered fibers, functional cellulose beads, and reactive powders that find relevant applications in pulp bleaching, enzyme and antimicrobial drug carriers, ion exchange resins, photoluminescent materials, waterproof materials, fluorescent materials, flame retardants, and template materials for inorganic synthesis. The topochemical engineering of biopolymers and biohybrids is an exciting and emerging area of research that can boost the design of new bioproducts with novel functionalities and technological advancements for biobased industries.
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Affiliation(s)
- LijiSobhana
S. Sobhanadhas
- Laboratory
of Fibre and Cellulose Technology, Åbo
Akademi University, Porthansgatan 3, FI-20500, Åbo, Finland
| | - Lokesh Kesavan
- Laboratory
of Fibre and Cellulose Technology, Åbo
Akademi University, Porthansgatan 3, FI-20500, Åbo, Finland
| | - Pedro Fardim
- Laboratory
of Fibre and Cellulose Technology, Åbo
Akademi University, Porthansgatan 3, FI-20500, Åbo, Finland
- Department
of Chemical Engineering, KU Leuven, Celestijnenlaan 200F bus 2424, B-3001 Leuven, Belgium
- E-mail:
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Functionalized cellulose beads with three dimensional porous structure for rapid adsorption of active constituents from Pyrola incarnata. Carbohydr Polym 2018; 181:560-569. [DOI: 10.1016/j.carbpol.2017.11.111] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/30/2017] [Accepted: 11/30/2017] [Indexed: 11/22/2022]
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Yildir E, Sjöholm E, Preis M, Trivedi P, Trygg J, Fardim P, Sandler N. Investigation of dissolved cellulose in development of buccal discs for oromucosal drug delivery. Pharm Dev Technol 2017; 23:520-529. [PMID: 29067849 DOI: 10.1080/10837450.2017.1397163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Mucoadhesive formulations have a wide scope of application for both systemic and local treatment of various diseases. In the case of recurrent aphthous stomatitis, to ensure effective therapy, the concentration of corticosteroids, and/or anesthetics at the mouth ulcer side should be maintained with minimal systemic absorption. Therefore, the aim of the study was to investigate cellulose-based formulations, in achieving suitable hardness, mucoadhesiveness, and sustained release of the active ingredients directed towards the mucosa for an extended period of time (∼4 h). This was examined by creating polymer reinforced cellulose composites which consisted of porous cellulose discs (CD) and different polymer components namely polyethylene glycol 6000 (PEG6000), polyethylene glycol 400 (PEG400), and ethyl cellulose. Empty CDs were formed by dropping dissolved cellulose into coagulation medium. The empty porous CDs were immersed into different drug loading solutions which were prepared by dissolving three different concentrations of triamcinolone acetonide and lidocaine hydrochloride in five different ratios of PEG 6000:PEG 400:ethanol (w:w:w %) solutions. All formulations were investigated regarding drug content, release, hardness, and mucoadhesive properties. The results indicate that the non-dispersing buccal discs had sufficient hardness, drug content and in vitro release properties, but further studies are needed to achieve proper mucoadhesiveness.
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Affiliation(s)
- Emrah Yildir
- a Pharmaceutical Science Laboratory, Department of Biosciences, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Erica Sjöholm
- a Pharmaceutical Science Laboratory, Department of Biosciences, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Maren Preis
- a Pharmaceutical Science Laboratory, Department of Biosciences, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Poonam Trivedi
- b Fibre and Cellulose Technology, Department of Chemical Engineering, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Jani Trygg
- b Fibre and Cellulose Technology, Department of Chemical Engineering, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Pedro Fardim
- b Fibre and Cellulose Technology, Department of Chemical Engineering, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
| | - Niklas Sandler
- a Pharmaceutical Science Laboratory, Department of Biosciences, Faculty of Science and Engineering , Åbo Akademi University , Turku , FI , Finland
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Porous Cellulose Beads Fabricated from Regenerated Cellulose as Potential Drug Delivery Carriers. J CHEM-NY 2017. [DOI: 10.1155/2017/1943432] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Highly porous cellulose beads (CBs) of various mean sizes were successfully prepared from regenerated cellulose of paper wastes. The drug delivery characteristics of CBs with different mean sizes were investigated using curcumin as the model drug under controlled conditions. The loading capacity and efficiency of curcumin onto CBs were substantially influenced by factors such as their morphological characteristics, curcumin concentration, and duration of loading. The release kinetic profiles of curcumin from CBs of different mean sizes were investigated in media of pH values resembling digestive juices and intestinal fluids. Release kinetic models were used to simulate and elucidate release kinetics and mechanisms of curcumin from CBs under specific conditions. The loading capacity and efficiency of curcumin onto CBs could be enhanced via the optimization of curcumin solution concentration and the morphological characteristics of CBs, whereas the release kinetic profiles of curcumin from CBs could be modulated by varying the mean diameter of CBs. Optimized CBs derived from regenerated cellulose of paper wastes are potentially useful as cost-effective drug delivery carriers.
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Li C, He M, Tong Z, Li Y, Sheng W, Luo L, Tong Y, Yu H, Huselstein C, Chen Y. Construction of biocompatible regenerated cellulose/SPI composite beads using high-voltage electrostatic technique. RSC Adv 2016. [DOI: 10.1039/c6ra02364a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Regenerated cellulose/SPI composite beads fabricated by a high-voltage electrostatic technique exhibited good cytocompatibility.
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Affiliation(s)
- Chen Li
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Meng He
- School of Materials Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - Zan Tong
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Yinping Li
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Wen Sheng
- Department of Medical Images
- Gongan County People's Hospital
- Gongan 434300
- China
| | - Lan Luo
- Department of Medical Images
- Gongan County People's Hospital
- Gongan 434300
- China
| | - Yu Tong
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- China
| | - Hao Yu
- Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA)
- UMR 7365 CNRS – Université de Lorraine
- 54505 Vandoeuvre-lès-Nancy
- France
| | - Celine Huselstein
- Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA)
- UMR 7365 CNRS – Université de Lorraine
- 54505 Vandoeuvre-lès-Nancy
- France
| | - Yun Chen
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Wuhan University
- Wuhan 430071
- China
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Kamal Mohamed SM, Ganesan K, Milow B, Ratke L. The effect of zinc oxide (ZnO) addition on the physical and morphological properties of cellulose aerogel beads. RSC Adv 2015. [DOI: 10.1039/c5ra17366c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Microsized open porous cellulose aerogel beads were made using mixtures of NaOH and urea and its properties tuned by varying ZnO.
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Affiliation(s)
- Seeni Meera Kamal Mohamed
- Institute of Materials Research
- German Aerospace Center (DLR)
- Department of Aerogels
- 51147 Cologne
- Germany
| | - Kathirvel Ganesan
- Institute of Materials Research
- German Aerospace Center (DLR)
- Department of Aerogels
- 51147 Cologne
- Germany
| | - Barbara Milow
- Institute of Materials Research
- German Aerospace Center (DLR)
- Department of Aerogels
- 51147 Cologne
- Germany
| | - Lorenz Ratke
- Institute of Materials Research
- German Aerospace Center (DLR)
- Department of Aerogels
- 51147 Cologne
- Germany
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Yildir E, Kolakovic R, Genina N, Trygg J, Gericke M, Hanski L, Ehlers H, Rantanen J, Tenho M, Vuorela P, Fardim P, Sandler N. Tailored beads made of dissolved cellulose--investigation of their drug release properties. Int J Pharm 2013; 456:417-23. [PMID: 24012866 DOI: 10.1016/j.ijpharm.2013.08.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Accepted: 08/21/2013] [Indexed: 11/19/2022]
Abstract
In the frame of this work, we have investigated drug entrapping and release abilities of new type of porous cellulose beads (CBs) as a spherical matrix system for drug delivery. For that purpose, CBs prepared with three different methods were used as drug carriers and three compounds, anhydrous theophylline (Thp), riboflavin 5'-phosphate sodium (RSP) and lidocaine hydrochloride monohydrate (LiHCl) were used as model drug substances. The loading procedure was carried out by immersing swollen empty beads into the solutions of different concentrations of model drugs. The morphology of empty and loaded beads was examined using a field emission scanning electron microscopy (FE-SEM). Near-infrared (NIR) imaging was performed to identify the drug distributions on and within the loaded CBs. The drug amount incorporated into CBs was examined spectrophotometrically and in vitro drug release studies were performed to determine the drug release rates. The results of FE-SEM and chemical NIR imaging analyses revealed that incorporated drug were distributed on the surface and but also within the internal structure of the CBs. Physical properties of CBs and solubility of model drugs had effect on loading efficacy. Also, the drug release rates were controlled by solubility of model drugs (diffusion controlled release). In conclusion, CBs from dissolved cellulose show promise in achieving controlled drug delivery.
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Affiliation(s)
- Emrah Yildir
- Pharmaceutical Sciences Laboratory, Department of Biosciences, Åbo Akademi University, Tykistökatu 6A, FI-20520 Turku, Finland.
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Gericke M, Trygg J, Fardim P. Functional Cellulose Beads: Preparation, Characterization, and Applications. Chem Rev 2013; 113:4812-36. [DOI: 10.1021/cr300242j] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Martin Gericke
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
| | - Jani Trygg
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
| | - Pedro Fardim
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi, Porthansgatan 3, FI-20500 Turku,
Finland, Members of the European Polysaccharide Network of Excellence
(EPNOE)
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Novel Composite Materials for Chiral Separation from Cellulose and Barium Sulfate. INT J POLYM SCI 2013. [DOI: 10.1155/2013/312615] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cellulose was dissolved in an aqueous solution of sodium hydroxide (NaOH) and urea followed by the addition of barium sulfate (BaSO4) to yield the BaSO4/cellulose composite particles. The morphology, particle size, and BaSO4content of the composite particles were adjusted by controlling the feed ratio of cellulose and BaSO4. The cellulose within the composite particles then reacted with 3,5-dimethylphenyl isocyanate. The resulting materials were utilized as the chiral stationary phases (CSPs) whose enantioseparation capabilities were evaluated by various chiral analytes. Due to the mechanical enhancement effect of BaSO4, the composite particles could be applied to the chromatographic packing materials.
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