1
|
Temperature-dependent rheological behaviour of methylcellulose nanocomposite organogels. Macromol Res 2023. [DOI: 10.1007/s13233-023-00110-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
2
|
Dos Santos Carvalho JD, Rabelo RS, Hubinger MD. Thermo-rheological properties of chitosan hydrogels with hydroxypropyl methylcellulose and methylcellulose. Int J Biol Macromol 2022; 209:367-375. [PMID: 35413310 DOI: 10.1016/j.ijbiomac.2022.04.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 12/11/2022]
Abstract
Thermal and rheological properties of methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC) hydrogels with chitosan (CHI) were investigated to verify the potential application of these blends as structured systems for oil transport (emulgel, oleogels, and bigels). FTIR confirmed hydrophobic interactions of cellulosic polymers with chitosan. In the temperature sweep, the thermosensitive hydrogels showed their reduced gel point compared to the original polymers. The gelation temperature was reduced from 66.9 °C for pure HPMC to 43.6 °C and 43.6 °C (MC pure polymer) to 39.3 °C when 30% CHI was added for both cases. The addition of 20 and 30% chitosan is enough to modify the extension of the gelation temperature of these polymers. These results indicate that the addition of chitosan enables MC and HPMC to form gels at lower temperatures, which could allow milder thermal conditions to be applied in processing oil carrier systems.
Collapse
Affiliation(s)
- Juliana Domingues Dos Santos Carvalho
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas (UNICAMP), 80, Monteiro Lobato Street, P.O. Box 6121, 13083-862, Campinas, SP, Brazil.
| | - Renata Santos Rabelo
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas, SP, Brazil
| | - Miriam Dupas Hubinger
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas (UNICAMP), 80, Monteiro Lobato Street, P.O. Box 6121, 13083-862, Campinas, SP, Brazil
| |
Collapse
|
3
|
Temperature-dependent dynamic light scattering studies on dilute aqueous solution of methylcellulose. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02917-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Bhaladhare S, Das D. Cellulose: A Fascinating Biopolymer for Hydrogel Synthesis. J Mater Chem B 2022; 10:1923-1945. [DOI: 10.1039/d1tb02848k] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The growing environmental concerns and increasing demands for eco-friendly materials have obliged researchers worldwide to explore naturally occurring biopolymers for various applications. Cellulose is a non-exhaustible polysaccharide biopolymer available almost...
Collapse
|
5
|
Structural characteristics of binary biopolymers-based emulsion-filled gels: A case of mixed sodium caseinate/methyl cellulose emulsion gels. FOOD STRUCTURE 2021. [DOI: 10.1016/j.foostr.2021.100233] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
6
|
Li X, Guo C, Yang X, Guo Y. Acid-induced mixed methylcellulose and casein gels: Structures, physical properties and formation mechanism. Food Chem 2021; 366:130561. [PMID: 34284189 DOI: 10.1016/j.foodchem.2021.130561] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/07/2021] [Accepted: 07/06/2021] [Indexed: 01/07/2023]
Abstract
In this study, caseins and methylcellulose (MC) were selected as building materials to prepare a class of mixed gels by adding glucono-δ-lactone (GDL) to induce the gelation of composite MC/casein systems, where the casein concentration was fixed at 8.0% (w/v) and the MC concentration varied from 0 to 1.0% (w/v). It was found that with increasing amount of MC addition (0-0.4%), the mixed gels exhibited a structural conversion from a casein-dominant gel network to a "water-in-water emulsion structure", with the caseins as the continuous gelling phase and the MC as the dispersed phase; further MC addition (0.4-1.0%, w/v) caused a more significant phase separation phenomenon. The structural conversion was in consistent with the determination result of gel hardness. Furthermore, by a combination of confocal laser scanning microscope (CLSM) and rheological studies, the structural evolution process of the mixed gels was revealed to explore the underlying formation mechanism of the mixed gels.
Collapse
Affiliation(s)
- Xiaofei Li
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, PR China
| | - Chuo Guo
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, PR China
| | - Xi Yang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, PR China; National Research & Development Center of Apple Processing Technology, PR China.
| | - Yurong Guo
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, PR China; National Research & Development Center of Apple Processing Technology, PR China.
| |
Collapse
|
7
|
Ratan Pal Singh. Rheological and Conformational Studies of Methylcellulose Gels in an Aqueous Medium. POLYMER SCIENCE SERIES A 2021. [DOI: 10.1134/s0965545x21030111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Hydrophilic modification of methylcellulose to obtain thermoviscosifying polymers without macro-phase separation. Carbohydr Polym 2021; 260:117792. [DOI: 10.1016/j.carbpol.2021.117792] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/16/2021] [Accepted: 02/05/2021] [Indexed: 11/17/2022]
|
9
|
Liberman L, Schmidt PW, Coughlin ML, Ya’akobi AM, Davidovich I, Edmund J, Ertem SP, Morozova S, Talmon Y, Bates FS, Lodge TP. Salt-Dependent Structure in Methylcellulose Fibrillar Gels. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucy Liberman
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Peter W. Schmidt
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - McKenzie L. Coughlin
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Asia Matatyaho Ya’akobi
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Irina Davidovich
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Jerrick Edmund
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - S. Piril Ertem
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Svetlana Morozova
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Macomolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Yeshayahu Talmon
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Frank S. Bates
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
10
|
Intermolecular interactions of chitosan: Degree of acetylation and molecular weight. Carbohydr Polym 2021; 259:117782. [PMID: 33674019 DOI: 10.1016/j.carbpol.2021.117782] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/22/2020] [Accepted: 02/05/2021] [Indexed: 12/25/2022]
Abstract
The degree of acetylation (DA), which determines as the molar proportion of N-acetyl-D-glucosamine units on chitosan, characterizes the physical, chemical, and biological properties of chitosan. Thus, DA can be a critical factor in the utilization of chitosan. Nevertheless, quantitative studies on the molecular interactions of chitosan as a function of DA are lacking. Here, we directly measured the molecular interaction (adhesion and cohesion) of molecularly thin chitosan films, dependent on the molecular weight and DA, using a surface forces apparatus. Using low molecular weight (LMW, ∼5 kDa) and high molecular weight (HMW, ∼135 kDa) chitosan, we obtained several DA ranges through a reacetylation method. The interactions of LMW chitosan were greatly influenced by the intrinsic charge of the chitosan units, whereas for HMW chitosan, chain flexibility was found to be the major factor affecting molecular interaction Taken together, our comprehensive data provides a holistic understanding of the interaction mechanism of chitosan.
Collapse
|
11
|
|
12
|
Deng L, Liu Y, Yang L, Yi JZ, Deng F, Zhang LM. Injectable and bioactive methylcellulose hydrogel carrying bone mesenchymal stem cells as a filler for critical-size defects with enhanced bone regeneration. Colloids Surf B Biointerfaces 2020; 194:111159. [DOI: 10.1016/j.colsurfb.2020.111159] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/13/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022]
|
13
|
Isobe N, Shimizu S. Salt-induced LCST-type thermal gelation of methylcellulose: quantifying non-specific interactions via fluctuation theory. Phys Chem Chem Phys 2020; 22:15999-16006. [PMID: 32632420 DOI: 10.1039/d0cp01687j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
What drives the phase separation of water-soluble polymers in the presence of electrolytes was quantified on a molecular scale via statistical thermodynamic fluctuation theory. Quantifying polymer-water and polymer-salt interactions enabled us to identify the dominant interaction for phase separation. As a model system, the lower critical solution temperature (LCST) type thermal gelation of methylcellulose (MC) in aqueous salt solutions was chosen. The Kirkwood-Buff integrals for intermolecular interactions, calculated from the published calorimetric and volumetric data, showed that (1) the accumulation of salts around MC molecules (favourable interaction between salts and MC) inhibits thermal gelation and the depletion of salts from MC (unfavourable interaction between salts and MC) promotes the gelation, and (2) this salt-MC interaction is the dominant factor (50-100 times stronger than the water-MC interaction). This insight from the fluctuation theory is at odds with the age-old consensus regarding the driving force of thermal gelation: water structure change in the presence of salts induces the promotion or inhibition of thermal gelation. However, our conclusion is founded upon the ability of the fluctuation theory to quantify water-MC and salt-MC interaction independently via the Kirkwood-Buff integrals. Flory-Huggins (FH) theory, on the contrary, could not separate these two interactions owing to the lack of a thermodynamic degree of freedom because the lattice solution is assumed to be fully packed. In addition, the dominant contribution from salt depletion poses difficulty for the χ parameter, which is essentially the difference of contact energies. Our approach, requiring calorimetric and volumetric data alone as input, provides a simple and versatile method towards elucidating the effect of cosolvents on biopolymer phase separation of physiological importance.
Collapse
Affiliation(s)
- Noriyuki Isobe
- Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan.
| | - Seishi Shimizu
- York Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
| |
Collapse
|
14
|
Nuvoli L, Conte P, Garroni S, Farina V, Piga A, Fadda C. Study of the Effects Induced by Ball Milling Treatment on Different Types of Hydrocolloids in a Corn Starch-Rice Flour System. Foods 2020; 9:E517. [PMID: 32325986 PMCID: PMC7230955 DOI: 10.3390/foods9040517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/06/2020] [Accepted: 04/16/2020] [Indexed: 11/30/2022] Open
Abstract
The effects of ball milling treatment on both the structure and properties of guar gum (GG), tara gum (TG), and methylcellulose (MC) were analyzed prior to assessing their potential interactions with starch components when they are used alone or in blends in a corn starch-rice flour system. X-ray diffraction profiles showed that the ball milling caused a reduction in the crystallin domain and, in turn, a diminished viscosity of the GG aqueous solutions. Despite an increase in its viscosity properties, effects on TG were minimal, while the milled MC exhibited reduced crystallinity, but similar viscosity. When both milled and un-milled hydrocolloids were individually added to the starch-flour system, the pasting properties of the resulting mixtures seemed to be affected by the type of hydrocolloid added rather than the structural changes induced by the treatment. All hydrocolloids increased the peak viscosity of the binary blends (especially pure GG), but only milled and un-milled MC showed values of setback and final viscosity similar to those of the individual starch. Ball milling seemed to be more effective when two combined hydrocolloids (milled GG and MC) were simultaneously used. No significant differences were observed in the viscoelastic properties of the blends, except for un-milled GG/starch, milled TG/starch, and milled MC/milled TG/starch gels.
Collapse
Affiliation(s)
- Luca Nuvoli
- Department of Chemistry and Pharmacy, University of Sassari and INSTM, Via Vienna 2, 07100 Sassari, Italy; (L.N.); (S.G.); (V.F.)
| | - Paola Conte
- Department of Agriculture, University of Sassari, Viale Italia 39/A, 07100 Sassari, Italy; (A.P.); (C.F.)
| | - Sebastiano Garroni
- Department of Chemistry and Pharmacy, University of Sassari and INSTM, Via Vienna 2, 07100 Sassari, Italy; (L.N.); (S.G.); (V.F.)
| | - Valeria Farina
- Department of Chemistry and Pharmacy, University of Sassari and INSTM, Via Vienna 2, 07100 Sassari, Italy; (L.N.); (S.G.); (V.F.)
| | - Antonio Piga
- Department of Agriculture, University of Sassari, Viale Italia 39/A, 07100 Sassari, Italy; (A.P.); (C.F.)
| | - Costantino Fadda
- Department of Agriculture, University of Sassari, Viale Italia 39/A, 07100 Sassari, Italy; (A.P.); (C.F.)
| |
Collapse
|
15
|
Pabois O, Antoine-Michard A, Zhao X, Omar J, Ahmed F, Alexis F, Harvey RD, Grillo I, Gerelli Y, Grundy MML, Bajka B, Wilde PJ, Dreiss CA. Interactions of bile salts with a dietary fibre, methylcellulose, and impact on lipolysis. Carbohydr Polym 2020; 231:115741. [PMID: 31888817 DOI: 10.1016/j.carbpol.2019.115741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022]
Abstract
Methylcellulose (MC) has a demonstrated capacity to reduce fat absorption, hypothetically through bile salt (BS) activity inhibition. We investigated MC cholesterol-lowering mechanism, and compared the influence of two BS, sodium taurocholate (NaTC) and sodium taurodeoxycholate (NaTDC), which differ slightly by their architecture and exhibit contrasting functions during lipolysis. BS/MC bulk interactions were investigated by rheology, and BS behaviour at the MC/water interface studied with surface pressure and ellipsometry measurements. In vitro lipolysis studies were performed to evaluate the effect of BS on MC-stabilised emulsion droplets microstructure, with confocal microscopy, and free fatty acids release, with the pH-stat method. Our results demonstrate that BS structure dictates their interactions with MC, which, in turn, impact lipolysis. Compared to NaTC, NaTDC alters MC viscoelasticity more significantly, which may correlate with its weaker ability to promote lipolysis, and desorbs from the interface at lower concentrations, which may explain its higher propensity to destabilise emulsions.
Collapse
Affiliation(s)
- Olivia Pabois
- Institut Laue-Langevin, Grenoble, 38000, France; Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, United Kingdom.
| | | | - Xi Zhao
- Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, United Kingdom.
| | - Jasmin Omar
- Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, United Kingdom.
| | - Faizah Ahmed
- Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, United Kingdom.
| | | | - Richard D Harvey
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), 06099, Germany.
| | | | - Yuri Gerelli
- Institut Laue-Langevin, Grenoble, 38000, France.
| | - Myriam M-L Grundy
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6AR, United Kingdom.
| | - Balazs Bajka
- Department of Nutritional Sciences, King's College London, London, SE1 9NH, United Kingdom.
| | - Peter J Wilde
- Quadram Institute Bioscience, Norwich Research Park, Norwich, NR4 7UA, United Kingdom.
| | - Cécile A Dreiss
- Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, United Kingdom.
| |
Collapse
|
16
|
Yang Y, Wu W, Liu H, Xu H, Zhong Y, Zhang L, Chen Z, Sui X, Mao Z. Aggregation behaviors of thermo-responsive methylcellulose in water: A molecular dynamics simulation study. J Mol Graph Model 2020; 97:107554. [PMID: 32035312 DOI: 10.1016/j.jmgm.2020.107554] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/24/2019] [Accepted: 01/29/2020] [Indexed: 01/22/2023]
Abstract
The aggregation behaviors of methylcellulose (MC) in aqueous solution were investigated using all-atom molecular dynamic simulations (MD). The interactions between MC chains and water molecules at different temperatures were investigated by a series of MD analyses, such as the solvent accessible surface area, number of hydrogen bonds, radial distribution functions and the interaction energies. Constant temperature simulations and heating simulations of MC aqueous solution were carried out in this work. In the simulations at three constant temperatures (25 °C, 50 °C and 75 °C), the aggregation behaviors of MC chains were affected by the temperature. In the heating simulation (25 °C ∼ 75 °C), temperature increases were accompanied by decreases in interactions between MC and water molecules, and by increases in interactions between MC chains, which led to the aggregation of MC chains. The degree of aggregation of MC chains increased with the rise of temperature.
Collapse
Affiliation(s)
- Yang Yang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Wei Wu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Hongchen Liu
- Textile College, Zhongyuan University of Technology, Zhengzhou, 450007, Henan Province, China
| | - Hong Xu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China.
| | - Yi Zhong
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Zhize Chen
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China; National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai, 201620, China.
| |
Collapse
|
17
|
Wang Y, Han Q, Bai F, Luo Q, Wu M, Song G, Zhang H, Wang Y. The assembly and antitumor activity of lycium barbarum polysaccharide-platinum-based conjugates. J Inorg Biochem 2020; 205:111001. [PMID: 32007698 DOI: 10.1016/j.jinorgbio.2020.111001] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/20/2019] [Accepted: 01/21/2020] [Indexed: 11/24/2022]
Abstract
In this work, the new polysaccharide-platinum conjugates of 5-aminosalicylic acid modified lycium barbarum polysaccharide linking platinum compounds were designed in order to construct an anticancer metal drug delivery system. The multiple analysis methods were used to describe the chemical structure and physical properties of the polysaccharide-metal conjugates. The results showed that 5-aminosalicylic acid successfully acted as linker which was covalently bound between polysaccharide and platinum compound. The morphology and rheological properties of polysaccharide have been changed by the formation of conjugates, which exhibited certain inhibition specificity to A549 (human lung cancer cell line). The agarose gel electrophoresis and fluorescence microscopy results demonstrated that such conjugates promoted the unwinding of DNA and could significantly damage the nucleus of A549 cells. Cell cycle analyzing the Pt complex of conjugates could cause intracellular DNA damage and induced G2 phase arrest. So, polysaccharide-platinum conjugates might find a range of applications, for example in metal anticancer drug delivery.
Collapse
Affiliation(s)
- Ying Wang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing City, Jiangsu Province 210009, People's Republic of China
| | - Qianqian Han
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing City, Jiangsu Province 210009, People's Republic of China
| | - Feng Bai
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing City, Jiangsu Province 210009, People's Republic of China
| | - Qiang Luo
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China; Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing City, Jiangsu Province 210009, People's Republic of China
| | - Mingliang Wu
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China
| | - Gang Song
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China
| | - Hongmei Zhang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China.
| | - Yanqing Wang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University, Yancheng City, Jiangsu Province 224051, People's Republic of China.
| |
Collapse
|
18
|
Schmidt PW, Morozova S, Ertem SP, Coughlin ML, Davidovich I, Talmon Y, Reineke TM, Bates FS, Lodge TP. Internal Structure of Methylcellulose Fibrils. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b01773] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | | | - Irina Davidovich
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering, and the Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
| | | | | | | |
Collapse
|
19
|
Lua HY, Naim MN, P. Mohammed MA, Hamidon F, Abu Bakar NF. Effects of ultrasonicated methylcellulose coating on French fries during deep frying process. J FOOD PROCESS ENG 2019. [DOI: 10.1111/jfpe.13332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hwee Ying Lua
- Faculty of Engineering, Department of Process and Food EngineeringUniversiti Putra Malaysia Selangor Malaysia
| | - Mohd Nazli Naim
- Faculty of Engineering, Department of Process and Food EngineeringUniversiti Putra Malaysia Selangor Malaysia
| | - Mohd Afandi P. Mohammed
- Faculty of Engineering, Department of Process and Food EngineeringUniversiti Putra Malaysia Selangor Malaysia
| | - Fariza Hamidon
- Faculty of Chemical EngineeringUniversiti Technologi MARA Shah Alam Malaysia
| | | |
Collapse
|
20
|
Affiliation(s)
- Svetlana Morozova
- Department of Macromolecular Science and EngineeringCase Western Reserve University Cleveland Ohio USA
| |
Collapse
|
21
|
Morozova S, Coughlin ML, Early JT, Ertem SP, Reineke TM, Bates FS, Lodge TP. Properties of Chemically Cross-Linked Methylcellulose Gels. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01401] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
22
|
Effect of organic anion with multiple hydrophobic sites on gelation and phase separation in aqueous methylcellulose solution: Beyond simple salting-in effect. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
23
|
Singh RP, Kundu PP. Studies on rheological, thermal, and morphological properties of methylcellulose gel in aqueous medium. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ratan Pal Singh
- Department of ChemistryGeneral Shivdev Singh Diwan Gurbachan Singh Khalsa College Patiala Punjab India
| | - Patit Paban Kundu
- Department of Chemical EngineeringIndian Institute of Technology Roorkee Roorkee Uttarakhand India
| |
Collapse
|
24
|
Jeon JH, Park JH, Kim TI. Phenylboronic acid-conjugated cationic methylcellulose for hepatocellular carcinoma-targeted drug/gene co-delivery systems. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
25
|
Zhang X, Lin F, Yuan Q, Zhu L, Wang C, Yang S. Hydrogen-bonded thin films of cellulose ethers and poly(acrylic acid). Carbohydr Polym 2019; 215:58-62. [DOI: 10.1016/j.carbpol.2019.03.066] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/24/2019] [Accepted: 03/18/2019] [Indexed: 11/27/2022]
|
26
|
Isa Ziembowicz F, de Freitas DV, Bender CR, dos Santos Salbego PR, Piccinin Frizzo C, Pinto Martins MA, Reichert JM, Santos Garcia IT, Kloster CL, Villetti MA. Effect of mono- and dicationic ionic liquids on the viscosity and thermogelation of methylcellulose in the semi-diluted regime. Carbohydr Polym 2019; 214:174-185. [DOI: 10.1016/j.carbpol.2019.02.095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/26/2019] [Accepted: 02/27/2019] [Indexed: 11/24/2022]
|
27
|
Hynninen V, Mohammadi P, Wagermaier W, Hietala S, Linder MB, Ikkala O, Nonappa. Methyl cellulose/cellulose nanocrystal nanocomposite fibers with high ductility. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.12.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
28
|
Su X, Feng Y. Thermoviscosifying Smart Polymers for Oil and Gas Production: State of the Art. Chemphyschem 2018; 19:1941-1955. [PMID: 29888849 DOI: 10.1002/cphc.201800190] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Indexed: 11/06/2022]
Abstract
Water-soluble polymers have been extensively used in all sections of the oil and gas upstream industry, but their inherent thermothinning behaviour has limited their applications in harsh environments. To address this issue, thermoviscosifying (or "thermothickening") polymers (TVPs) whose aqueous solution viscosity automatically increases upon increasing the temperature were introduced in the early 1990s. This review first recalls the background for developing such smart materials, followed by demonstrating the mechanism of thermothickening. Next, three major TVPs including N-alkyl substituted acrylamide copolymers, grafted polyethers, and cellulose derivatives are summarized with respect to their structure-property relationship, then their practical trials or potential uses in oil and gas drilling fluids, cementing slurries, hydraulic fracturing, steam flooding, and enhanced oil recovery are discussed. Finally, the advantages and disadvantages of the current TVPs are commented and future prospects are discussed to close this review.
Collapse
Affiliation(s)
- Xin Su
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yujun Feng
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| |
Collapse
|
29
|
Wang Z, Yang K, Li H, Yuan C, Zhu X, Huang H, Wang Y, Su L, Nishinari K, Fang Y. In situ observation of gelation of methylcellulose aqueous solution with viscosity measuring instrument in the diamond anvil cell. Carbohydr Polym 2018; 190:190-195. [PMID: 29628237 DOI: 10.1016/j.carbpol.2018.02.078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 02/22/2018] [Accepted: 02/23/2018] [Indexed: 11/16/2022]
Abstract
Gelation of methylcellulose aqueous solution was investigated by a high-pressure viscosity measurement device which consisted of diamond anvil cell, microscope and CCD. And the temperature and pressure dependence of the viscosity of methylcellulose aqueous solution was measured utilizing a rolling-ball technique. The results showed that sol-gel thermal transition of methylcellulose solution occurred at the temperature of 53 °C under atmospheric pressure. Upon compression, it was indicated that the viscosity showed a dramatic change in the vicinity of the pressure of 500 MPa. Parabolic phase diagram of methylcellulose aqueous solution was constructed, and it showed that the melting point was an increasing function of pressure at the first stage and an decreasing function of pressure at the final stage. The mechanism of sol-gel transformation of methylcellulose aqueous solutions was also discussed, it might be assumed that both hydrogen and hydrophobic bonds were involved with the gel formation in the case of methylcellulose aqueous solution.
Collapse
Affiliation(s)
- Zheng Wang
- School of Sciences, Wuhan University of Technology, Wuhan, Hubei, 430070, China; Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Kun Yang
- Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Haining Li
- School of Sciences, Wuhan University of Technology, Wuhan, Hubei, 430070, China; Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Chaosheng Yuan
- Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Xiang Zhu
- Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Haijun Huang
- School of Sciences, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Yongqiang Wang
- Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Lei Su
- Center for High Pressure Science and Technology Research, Zhengzhou University of Light Industry, Zhengzhou, 450002, China; Key Laboratory of Photochemistry, Institute of Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Katsuyoshi Nishinari
- School of Food and Biological Engineering, Glyn O Phillips Hydrocolloids Research Centre, Hubei University of Technology, Wuhan, 430068, China
| | - Yapeng Fang
- School of Food and Biological Engineering, Glyn O Phillips Hydrocolloids Research Centre, Hubei University of Technology, Wuhan, 430068, China.
| |
Collapse
|
30
|
Hu X, Zhang D, Sheiko SS. Cooling-Triggered Shapeshifting Hydrogels with Multi-Shape Memory Performance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707461. [PMID: 29761565 DOI: 10.1002/adma.201707461] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/11/2018] [Indexed: 06/08/2023]
Abstract
Heating-triggered shape actuation is vital for biomedical applications. The likely overheating and subsequent damage of surrounding tissue, however, severely limit its utilization in vivo. Herein, cooling-triggered shapeshifting is achieved by designing dual-network hydrogels that integrate a permanent network for elastic energy storage and a reversible network of hydrophobic crosslinks for "freezing" temporary shapes when heated. Upon cooling to 10 °C, the hydrophobic interactions weaken and allow recovery of the original shape, and thus programmable shape alterations. Further, multiple temporary shapes can be encoded independently at either different temperatures or different times during the isothermal network formation. The ability of these hydrogels to shapeshift at benign conditions may revolutionize biomedical implants and soft robotics.
Collapse
Affiliation(s)
- Xiaobo Hu
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3290, USA
| | - Daixuan Zhang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3290, USA
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-3290, USA
| |
Collapse
|
31
|
Scheuble N, Schaffner J, Schumacher M, Windhab EJ, Liu D, Parker H, Steingoetter A, Fischer P. Tailoring Emulsions for Controlled Lipid Release: Establishing in vitro-in Vivo Correlation for Digestion of Lipids. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17571-17581. [PMID: 29708724 DOI: 10.1021/acsami.8b02637] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The use of oil-in-water emulsions for controlled lipid release is of interest to the pharmaceutical industry in the development of poorly water soluble drugs and also has gained major interest in the treatment of obesity. In this study, we focus on the relevant in vitro parameters reflecting gastric and intestinal digestion steps to reach a reliable in vitro-in vivo correlation for lipid delivery systems. We found that (i) gastric lipolysis determines early lipid release and sensing. This was mainly influenced by the emulsion stabilization mechanism. (ii) Gastric mucin influences the structure of charge-stabilized emulsion systems in the stomach, leading to destabilization or gel formation, which is supported by in vivo magnetic resonance imaging in healthy volunteers. (iii) The precursor structures of these emulsions modulate intestinal lipolysis kinetics in vitro, which is reflected in plasma triglyceride and cholecystokinin concentrations in vivo.
Collapse
Affiliation(s)
- Nathalie Scheuble
- Institute of Food Nutrition and Health , ETH Zurich , 8092 Zurich , Switzerland
| | - Joschka Schaffner
- Institute of Food Nutrition and Health , ETH Zurich , 8092 Zurich , Switzerland
| | - Manuel Schumacher
- Institute of Food Nutrition and Health , ETH Zurich , 8092 Zurich , Switzerland
| | - Erich J Windhab
- Institute of Food Nutrition and Health , ETH Zurich , 8092 Zurich , Switzerland
| | - Dian Liu
- Institute for Biomedical Engineering , University Zurich and ETH Zurich , 8092 Zurich , Switzerland
| | - Helen Parker
- Division of Gastroenterology and Hepatology , University Hospital Zurich , 8091 Zurich , Switzerland
| | - Andreas Steingoetter
- Institute for Biomedical Engineering , University Zurich and ETH Zurich , 8092 Zurich , Switzerland
- Division of Gastroenterology and Hepatology , University Hospital Zurich , 8091 Zurich , Switzerland
| | - Peter Fischer
- Institute of Food Nutrition and Health , ETH Zurich , 8092 Zurich , Switzerland
| |
Collapse
|
32
|
Lodge TP, Maxwell AL, Lott JR, Schmidt PW, McAllister JW, Morozova S, Bates FS, Li Y, Sammler RL. Gelation, Phase Separation, and Fibril Formation in Aqueous Hydroxypropylmethylcellulose Solutions. Biomacromolecules 2018; 19:816-824. [PMID: 29489329 DOI: 10.1021/acs.biomac.7b01611] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The thermoresponsive behavior of a hydroxypropylmethylcellulose (HPMC) sample in aqueous solutions has been studied by a powerful combination of characterization tools, including rheology, turbidimetry, cryogenic transmission electron microscopy (cryoTEM), light scattering, small-angle neutron scattering (SANS), and small-angle X-ray scattering (SAXS). Consistent with prior literature, solutions with concentrations ranging from 0.3 to 3 wt % exhibit a sharp drop in the dynamic viscoelastic moduli G' and G″ upon heating near 57 °C. The drop in moduli is accompanied by an abrupt increase in turbidity. All the evidence is consistent with this corresponding to liquid-liquid phase separation, leading to polymer-rich droplets in a polymer-depleted matrix. Upon further heating, the moduli increase, and G' exceeds G″, corresponding to gelation. CryoTEM in dilute solutions reveals that HPMC forms fibrils at the same temperature range where the moduli increase. SANS and SAXS confirm the appearance of fibrils over a range of concentration, and that their average diameter is ca. 18 nm; thus gelation is attributable to formation of a sample-spanning network of fibrils. These results are compared in detail with the closely related and well-studied methylcellulose (MC). The HPMC fibrils are generally shorter, more flexible, and contain more water than with MC, and the resulting gel at high temperatures has a much lower modulus. In addition to the differences in fibril structure, the key distinction between HPMC and MC is that the former undergoes liquid-liquid phase separation prior to forming fibrils and associated gelation, whereas the latter forms fibrils first. These results and their interpretation are compared with the prior literature, in light of the relatively recent discovery of the propensity of MC and HPMC to self-assemble into fibrils on heating.
Collapse
|
33
|
|
34
|
Parvari G, Rotbaum Y, Eichen Y, Rittel D. Impact-induced gelation in aqueous methylcellulose solutions. Chem Commun (Camb) 2018; 54:12578-12581. [DOI: 10.1039/c8cc06378h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Inverse-freezing materials were known to solidify when heated – now a new stimulus is shown to induce this transition within microseconds’ timescales: mechanical impacts.
Collapse
Affiliation(s)
- Galit Parvari
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Haifa 3200008
- Israel
| | - Yonatan Rotbaum
- Faculty of Mechanical Engineering
- Technion – Israel Institute of Technology
- Haifa 3200008
- Israel
| | - Yoav Eichen
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Haifa 3200008
- Israel
| | - Daniel Rittel
- Faculty of Mechanical Engineering
- Technion – Israel Institute of Technology
- Haifa 3200008
- Israel
| |
Collapse
|
35
|
Mariani A, Nuvoli L, Sanna D, Alzari V, Nuvoli D, Rassu M, Malucelli G. Semi-interpenetrating polymer networks based on crosslinked poly(N
-isopropyl acrylamide) and methylcellulose prepared by frontal polymerization. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Alberto Mariani
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Luca Nuvoli
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Davide Sanna
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Valeria Alzari
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Daniele Nuvoli
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Mariella Rassu
- Department of Chemistry and Pharmacy; University of Sassari, and INSTM, via Vienna 2; Sassari 07100 Italy
| | - Giulio Malucelli
- Department of Applied Science and Technology; Local INSTM Unit, Viale T. Michel 5; Alessandria 15121 Italy
| |
Collapse
|
36
|
Morozova S, Lodge TP. Conformation of Methylcellulose as a Function of Poly(ethylene glycol) Graft Density. ACS Macro Lett 2017; 6:1274-1279. [PMID: 35650781 DOI: 10.1021/acsmacrolett.7b00776] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Low molecular weight thiol-terminated poly(ethylene glycol) (PEG) (M ≈ 800) has been grafted onto a high molecular weight methylcellulose (MC, Mw ≈ 150000) by a facile thiol-ene click reaction; graft densities varied from 0.7% to 33% (grafts per anhydroglucose unit). Static and dynamic light scattering reveals that the overall radius of the chain increases systematically with graft density, in a manner in excellent agreement with theory. As the contour length remains unchanged, it is apparent that grafting leads to an increase in the persistence length of this semiflexible copolymer, by as much as a factor of 4. These results represent the first experimental verification of the excluded volume theory at low grafting densities, and demonstrate a promising synthetic platform for systematically increasing the persistence length of a model semiflexible, water-soluble polymer.
Collapse
Affiliation(s)
- Svetlana Morozova
- Department of Chemistry and ‡Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemistry and ‡Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
37
|
Xin C, Chen J, Liang H, Wan J, Li J, Li B. Confirmation and measurement of hydrophobic interaction in sol-gel system of konjac glucomannan with different degree of deacetylation. Carbohydr Polym 2017; 174:337-342. [DOI: 10.1016/j.carbpol.2017.06.088] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/04/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022]
|
38
|
Functional properties of cellulose derivatives to tailor a model sponge cake using rheology and cellular structure analysis. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2017.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
39
|
Rotbaum Y, Parvari G, Eichen Y, Rittel D. Static and Dynamic Large Strain Properties of Methyl Cellulose Hydrogels. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00270] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yonatan Rotbaum
- Faculty of Mechanical Engineering and ‡Schulich Faculty of Chemistry, Technion, 3200008 Haifa, Israel
| | - Galit Parvari
- Faculty of Mechanical Engineering and ‡Schulich Faculty of Chemistry, Technion, 3200008 Haifa, Israel
| | - Yoav Eichen
- Faculty of Mechanical Engineering and ‡Schulich Faculty of Chemistry, Technion, 3200008 Haifa, Israel
| | - Daniel Rittel
- Faculty of Mechanical Engineering and ‡Schulich Faculty of Chemistry, Technion, 3200008 Haifa, Israel
| |
Collapse
|
40
|
Thompson BR, Horozov TS, Stoyanov SD, Paunov VN. An ultra melt-resistant hydrogel from food grade carbohydrates. RSC Adv 2017. [DOI: 10.1039/c7ra08590g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have formulated an ultra melt-resistant composite hydrogel with tailorable rheology over a range of temperatures.
Collapse
Affiliation(s)
| | - Tommy S. Horozov
- School of Mathematics and Physical Sciences (Chemistry)
- University of Hull
- Hull
- UK
| | - Simeon D. Stoyanov
- Unilever R&D Vlaardingen
- 3133 AT Vlaardingen
- The Netherlands
- Laboratory of Physical Chemistry and Soft Matter
- Wageningen University
| | - Vesselin N. Paunov
- School of Mathematics and Physical Sciences (Chemistry)
- University of Hull
- Hull
- UK
| |
Collapse
|
41
|
de Silva UK, Lapitsky Y. Preparation and Timed Release Properties of Self-Rupturing Gels. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29015-29024. [PMID: 27696808 DOI: 10.1021/acsami.6b09370] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Swelling of polymeric hydrogels is sensitive to their cross-link densities. Here, we exploit this principle to prepare self-rupturing gels which are based on a commonly-used, nontoxic, and inexpensive polyelectrolyte, poly(acrylic acid), and are prepared through a simple and low-cost polymerization-based technique. The self-rupture of these covalently cross-linked gels is achieved by preparing them to have highly nonuniform cross-link densities. This heterogeneity in cross-linking leads to highly nonuniform swelling, which generates stresses that are high enough to induce gel rupture. The time required for this rupture to occur depends on the difference in the cross-link densities between the adjoining gel regions, gel size, order in which the variably cross-linked gel portions are synthesized, and on the ambient pH and ionic strength. Furthermore, when these self-rupturing gels are prepared to have liquid-filled (capsule-like) morphologies, they can act as timed/delayed release devices. The self-rupture of these capsules provides a burst payload release after a preprogrammed delay, which is on the timescale of days and can be easily tuned by varying the rupture time, i.e., by varying either the cross-link nonuniformity or the pH and ionic strength of the release media.
Collapse
Affiliation(s)
- Udaka K de Silva
- Department of Chemical and Environmental Engineering, University of Toledo , Toledo, Ohio 43606, United States
| | - Yakov Lapitsky
- Department of Chemical and Environmental Engineering, University of Toledo , Toledo, Ohio 43606, United States
- School of Green Chemistry and Engineering, University of Toledo , Toledo, Ohio 43606, United States
| |
Collapse
|
42
|
Lee SC, Cho YW, Park K. Control of Thermogelation Properties of Hydrophobically-Modified Methylcellulose. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911505049652] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aqueous solutions that undergo reversible thermosensitive gelation around body temperature were developed based on hydrophobically-modified methyl cellulose (HMMC). The approach involved HMMC as the main component of aqueous compositions to provide a system with fast gelling properties, which has not been accomplished with aqueous solutions of unmodified methyl cellulose (MC). MC was modified with the stearyl group as a hydrophobic modifier by controlling the degree of modification. The gelation rate of aqueous solutions containing identical amounts of HMMC and NaCl increased as the temperature increased. The HMMC solutions gelled at a fixed temperature and concentration range, while the unmodified MC solutions did not show sol-to-gel transition. In addition, HMMC solutions exhibited much faster gelation than MC solutions at given polymer and NaCl concentrations. The HMMC/NaCl solutions exhibited the reversible gel-to-sol transition upon cooling below 25°C. The rate of sol-to-gel transition at body temperature, and the reversible gel-to-sol transition at room temperature, were modulated by adjusting the concentration of HMMC and NaCl, respectively. The HMMC/NaCl compositions provided a simple system for accurate control of the thermogelling temperature and the thermogelation rates.
Collapse
Affiliation(s)
- Sang Cheon Lee
- Departments of Pharmaceutics and Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Yong Woo Cho
- Departments of Pharmaceutics and Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Kinam Park
- Departments of Pharmaceutics and Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA,
| |
Collapse
|
43
|
Scheuble N, Geue T, Kuster S, Adamcik J, Mezzenga R, Windhab EJ, Fischer P. Mechanically Enhanced Liquid Interfaces at Human Body Temperature Using Thermosensitive Methylated Nanocrystalline Cellulose. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1396-404. [PMID: 26779953 DOI: 10.1021/acs.langmuir.5b04231] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The mechanical performance of materials at oil/water interfaces after consumption is a key factor affecting hydrophobic drug release. In this study, we methylated the surface of nanocrystalline cellulose (NCC) by mercerization and dimethyl sulfate exposure to produce thermosensitive biopolymers. These methylated NCC (metNCC) were used to investigate interfacial thermogelation at air/water and medium-chain triglyceride (MCT)/water interfaces at body temperature. In contrast to bulk fluid dynamics, elastic layers were formed at room temperature, and elasticity increased significantly at body temperature, which was measured by interfacial shear and dilatational rheology in situ. This unique phenomenon depends on solvent quality, temperature, and polymer concentration at interfaces. Thus, by adjusting the degree of hydrophobicity of metNCC, the interfacial elasticity and thermogelation of the interfaces could be varied. In general, these new materials (metNCC) formed more brittle interfacial layers compared to commercial methylcellulose (MC A15). Thermogelation of methylcellulose promotes attractive intermolecular forces, which were reflected in a change in self-assembly of metNCC at the interface. As a consequence, layer thickness and density increased as a function of temperature. These effects were measured by atomic force microscopy (AFM) images of the displaced interface and confirmed by neutron reflection. The substantial structural and mechanical change of methylcellulose interfaces at body temperature represents a controllable encapsulation parameter allowing optimization of lipid-based drug formulations.
Collapse
Affiliation(s)
- N Scheuble
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| | - T Geue
- Laboratory of Neutron Scattering and Imaging, Paul Scherrer Institut , 5232 Villigen PSI, Switzerland
| | - S Kuster
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| | - J Adamcik
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| | - R Mezzenga
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| | - E J Windhab
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| | - P Fischer
- Institute of Food Nutrition and Health, ETH Zurich , 8092 Zurich, Switzerland
| |
Collapse
|
44
|
Nowald C, Penk A, Chiu H, Bein T, Huster D, Lieleg O. A Selective Mucin/Methylcellulose Hybrid Gel with Tailored Mechanical Properties. Macromol Biosci 2016; 16:567-79. [DOI: 10.1002/mabi.201500353] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/25/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Constantin Nowald
- Department of Mechanical Engineering Institute for Medical Engineering IMETUM Technische Universität München 85748 Garching Germany
| | - Anja Penk
- Institute of Medical Physics and Biophysics University of Leipzig 04107 Leipzig Germany
| | - Hsin‐Yi Chiu
- Department of Chemistry and Center for NanoScience (CeNS) University of Munich (LMU) 81377 München Germany
| | - Thomas Bein
- Department of Chemistry and Center for NanoScience (CeNS) University of Munich (LMU) 81377 München Germany
| | - Daniel Huster
- Institute of Medical Physics and Biophysics University of Leipzig 04107 Leipzig Germany
| | - Oliver Lieleg
- Department of Mechanical Engineering Institute for Medical Engineering IMETUM Technische Universität München 85748 Garching Germany
| |
Collapse
|
45
|
Masrat R, Maswal M, Chat OA, Rather GM, Dar AA. A rheological investigation of sol–gel transition of hydroxypropyl cellulose with nonionic surfactant sorbitan monopalmitate: Modulation of gel strength by UV irradiation. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
46
|
Chinnam PR, Mantravadi R, Jimenez JC, Dikin DA, Wunder SL. Lamellar, micro-phase separated blends of methyl cellulose and dendritic polyethylene glycol, POSS-PEG. Carbohydr Polym 2016; 136:19-29. [DOI: 10.1016/j.carbpol.2015.08.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/26/2015] [Accepted: 08/27/2015] [Indexed: 02/05/2023]
|
47
|
McAllister JW, Schmidt PW, Dorfman KD, Lodge TP, Bates FS. Thermodynamics of Aqueous Methylcellulose Solutions. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01544] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- John W. McAllister
- Department of Chemistry and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Peter W. Schmidt
- Department of Chemistry and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Kevin D. Dorfman
- Department of Chemistry and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemistry and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Frank S. Bates
- Department of Chemistry and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
48
|
Nishimoto Y, Eguchi H, Shimoda E, Suzuki T. Analysis of Water State and Gelation of Methylcellulose Thermo-reversible Hydrogels by Thermal Analysis and NMR. ANAL SCI 2015; 31:929-34. [PMID: 26353960 DOI: 10.2116/analsci.31.929] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The gelation of aqueous methylcellulose (MC) solutions containing polyethylene glycol (PEG) was studied by the combination of differential scanning calorimetry (DSC) and Raman spectrometry. The gelation of MC hydrogels containing PEG occurred in two-steps. First, the gel network was formed by the hydrophobic interaction between MC and PEG at 310 - 313 K, and then, the gel network was formed between MC chains at 323 K. On the other hand, in the MC hydrogels containing PEG and NaCl, sodium ion assumed to be enclosed by PEG, forming a helix with the hydrophobic groups outward. The sodium ion in the gel was expected to be surrounded by the ether oxygen of PEG as crown ether.
Collapse
Affiliation(s)
- Yuko Nishimoto
- Department of Chemistry, Faculty of Science, Kanagawa University
| | | | | | | |
Collapse
|
49
|
Hansen K, Kim G, Desai KGH, Patel H, Olsen KF, Curtis-Fisk J, Tocce E, Jordan S, Schwendeman SP. Feasibility Investigation of Cellulose Polymers for Mucoadhesive Nasal Drug Delivery Applications. Mol Pharm 2015; 12:2732-41. [PMID: 26097994 DOI: 10.1021/acs.molpharmaceut.5b00264] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The feasibility of various cellulose polymer derivatives, including methylcellulose (MC), hydroxypropyl methylcellulose (HPMC), sodium-carboxymethylcellulose (sodium-CMC), and cationic-hydroxyethylcellulose (cationic-HEC), for use as an excipient to enhance drug delivery in nasal spray formulations was investigated. Three main parameters for evaluating the polymers in nasal drug delivery applications include rheology, ciliary beat frequency (CBF), and permeation across nasal tissue. Reversible thermally induced viscosity enhancement was observed at near nasal physiological temperature when cellulose derivatives were combined with an additional excipient, poly(vinyl caprolactam)-poly(vinyl acetate)-poly(ethylene glycol) graft copolymer (PVCL-PVA-PEG). Cationic-HEC was shown to enhance acyclovir permeation across the nasal mucosa. None of the tested cellulosic polymers caused any adverse effects on porcine nasal tissues and cells, as assessed by alterations in CBF. Upon an increase in polymer concentration, a reduction in CBF was observed when ciliated cells were immersed in the polymer solution, and this decrease returned to baseline when the polymer was removed. While each cellulose derivative exhibited unique advantages for nasal drug delivery applications, none stood out on their own to improve more than one of the performance characteristics examined. Hence, these data may be useful for the development of new cellulose derivatives in nasal drug formulations.
Collapse
Affiliation(s)
- Kellisa Hansen
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Gwangseong Kim
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Kashappa-Goud H Desai
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Hiren Patel
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | - Karl F Olsen
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States
| | | | | | | | - Steven P Schwendeman
- †Department of Pharmaceutical Sciences and the Biointerfaces Institute, University of Michigan, North Campus Research Complex, 2800 Plymouth Road, Ann Arbor, Michigan 48109, United States.,‡Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
50
|
Adsorption of cationic dye from water using thermo-sensitive colloid composed of methylcellulose and sodium alginate. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3666-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|