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Calamak S. Sodium polyacrylate microparticle containing multifunctional skin patch for sweat analysis. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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2
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Sawant N, Salam A, Lucia L. Esterified Polysaccharide Composites that Display Super Absorbency from Highly Favorable Hydrogen and Ionic Interactions. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Sawant
- Department of Chemical and Paper Engineering, Western Michigan University, Kalamazoo, Michigan 49008, United States
| | - Abdus Salam
- Department of Chemical and Paper Engineering, Western Michigan University, Kalamazoo, Michigan 49008, United States
| | - Lucian Lucia
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695-8005, United States
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Sahoo JK, Choi J, Hasturk O, Laubach I, Descoteaux ML, Mosurkal S, Wang B, Zhang N, Kaplan DL. Silk degumming time controls horseradish peroxidase-catalyzed hydrogel properties. Biomater Sci 2020; 8:4176-4185. [PMID: 32608410 PMCID: PMC7390697 DOI: 10.1039/d0bm00512f] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogels provide promising applications in tissue engineering and regenerative medicine, with silk fibroin (SF) offering biocompatibility, biodegradability and tunable mechanical properties. The molecular weight (MW) distribution of SF chains varies from ∼80 to 400 kDa depending on the extraction and purification process utilized to prepare the protein polymer. Here, we report a fundamental study on the effect of different silk degumming (extraction) time (DT) on biomaterial properties of enzymatically crosslinked hydrogels, including secondary structure, mechanical stiffness, in vitro degradation, swelling/contraction, optical transparency and cell behaviour. The results indicate that DT plays a crucial role in determining material properties of the hydrogel; decrease in DT increases β-sheet (crystal) formation and mechanical stiffness while decreasing degradation rate and optical transparency. The findings on the relationships between properties of silk hydrogels and DT should facilitate the more rational design of silk-based hydrogel biomaterials to match properties needed for diverse purpose in biomedical engineering.
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Affiliation(s)
- Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Jaewon Choi
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Onur Hasturk
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Isabel Laubach
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Marc L Descoteaux
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Shreyas Mosurkal
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Boyang Wang
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - Nina Zhang
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
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Vorobieva EV. Swelling of polyacrylamide-based hydrogel in aqueous solutions of low-molecular salts. DOKLADY OF THE NATIONAL ACADEMY OF SCIENCES OF BELARUS 2020. [DOI: 10.29235/1561-8323-2020-64-3-293-299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The swelling kinetics of cross-linked polyacrylamide was studied depending on the composition of the external solution. It was shown that the polymer gel swelling during the transition from water to a potassium or sodium chloride solution and vice versa sharply decreases, then gradually increases. The swelling of gel in a solution of sodium chloride is higher than that of potassium chloride. In the equilibrium swollen gel, the concentration of salts in the gel phase is higher than in the external solution and increases with the transition from potassium chloride to sodium chloride.
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Affiliation(s)
- E. V. Vorobieva
- Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
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Dewatering of Mine Tailings Slurries Using Superabsorbent Polymers (SAPs) Reclaimed from Industrial Reject of Baby Diapers: A Preliminary Study. MINERALS 2019. [DOI: 10.3390/min9120785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Traditional deposition of tailings slurry in a tailings storage facility (TSF) can create risks of dike failure. In order to minimize these risks and slurry spillage, the surface deposition technique of densified tailings (DT) through dewatering of the slurry has emerged. The DT technique has the potential to maximize water reuse, improve the shear strength of surface tailings, and reduce the ecological footprint of TSF. The consistency of DT covers a continuum ranging from thickened state, to paste state, to dry state. Despite its efficiency and economic feasibility, DT densification using thickeners sometimes proves unable to achieve the design target solids mass concentration (Cw%). Hence, the use of superabsorbent polymers (SAPs) seems to represent a promising alternative, owing to their higher water absorbent capacity. In this paper, superabsorbent polymers (SAPs) reclaimed from industrial reject of baby diapers (Na-polyacrylates) are explored as a promising alternative to mine tailings slurries dewatering. To this end, laboratory-scale dewatering tests have been performed using two grades of Na-polyacrylate SAPs (grade 1 SAP = SAG-A06P coarse-grained, and grade 2 = SAG-M01P-100 medium-grained) for the tailings slurries densification. A higher water absorbency (or swelling capacity) was observed using the coarser SAPs (SAG-A06P) compared to the finer SAPs (SAG-M01P-100). The preliminary results showed that a SAP volume dosage in the range 10–13 kg of SAP/m3 of slurry allowed achieving a final solids mass concentration (Cw%_final) ≥ 70%, despite the occurrence of gel-blocking phenomenon.
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Yang ST, Park YS. Release pattern of dexamethasone after administration through an implant-mediated drug delivery device with an active plunger of super absorbent polymer. Drug Deliv Transl Res 2018; 8:702-707. [PMID: 29626335 DOI: 10.1007/s13346-018-0516-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The implant-mediated drug delivery system (IMDDS) is a novel, innovative device that allows drug delivery through bone marrow. The purpose of this study was to investigate the effect of an active plunger component made of super absorbent polymer (SAP) on the plasma concentration of dexamethasone released from the IMDDS. The IMDDSs were installed in a total of 18 rabbits. After complete healing, dexamethasone was loaded with the SAP active plunger and with water to cause expansion in the test group (n = 9), while only the drug was loaded in the control group, as per the original protocol (n = 9). The release patterns of each group were monitored for 2 weeks by measuring the plasma concentration of the drug. Both groups showed sustained release of drug. However, the test groups showed more rapid increase in plasma concentration and higher area under the curve (AUC) throughout the observation period. The incorporation of a SAP active plunger component in the IMDDS resulted in an increase in initial release of drug and higher bioavailability within the observation period of 2 weeks after dexamethasone administration.
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Affiliation(s)
- Sung-Tae Yang
- Department of Oral Anatomy, School of Dentistry, Seoul National University and Dental Research Institute, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Young-Seok Park
- Department of Oral Anatomy, School of Dentistry, Seoul National University and Dental Research Institute, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
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Kizhnyaev VN, Pokatilov FA, Vil’yanen DV, Gross VI, Edel’shtein OA. Network Paired Polymers Based on Poly(acrylic acid). POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418010086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pokatilov FA, Kizhnyaev VN, Zhitov RG, Krakhotkina EA. Network polymers based on tetrazolylethyl cellulose ether. RUSS J APPL CHEM+ 2017. [DOI: 10.1134/s1070427216120259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Solomevich SO, Bychkovskii PM, Yurkshtovich TL, Golub NV. Influence of the properties of modified dextran hydrogel polymer network on the kinetics of the release of prospidin antitumor agent. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s1070427216080140] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ochirov OS, Stel’makh SA, Mognonov DM. Hydrogels based on polyalkylguanidines and aldehydes. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416030106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hydrogel-based flexible micro-reference electrodes for use in alkaline and neutral pH solutions. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3257-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ochirov OS, Mognonov DM, Stel’makh SA. Polymeric hydrogels based on polyhexamethylene guanidine hydrochloride and formaldehyde. RUSS J APPL CHEM+ 2015. [DOI: 10.1134/s1070427215020238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Kizhnyaev VN, Pokatilov FA, Zhitov RG, Murashev VO, Smirnov AI. Behavior of 5-vinyltetrazole copolymer network hydrogels of various amphiphilicities in aqueous media. POLYMER SCIENCE SERIES B 2014. [DOI: 10.1134/s1560090414060116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Castellani R, Poulesquen A, Goettmann F, Marchal P, Choplin L. Efficiency enhancement of decontamination gels by a superabsorbent polymer. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.04.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kizhnyaev VN, Pokatilov FA, Baginova TN, Zhitov RG. Synthesis and properties of tetrazole-containing double polymers. POLYMER SCIENCE SERIES B 2014. [DOI: 10.1134/s1560090414030105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Elyashevich GK, Smirnov MA. New pH-responsive and electroactive composite systems containing hydrogels and conducting polymers on a porous matrix. POLYMER SCIENCE SERIES A 2012. [DOI: 10.1134/s0965545x12110028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khalid S, Qadir M, Massud A, Ali M, Rasool M. Effect of degree of cross-linking on swelling and drug release behaviour of poly(methyl methacrylate-co-itaconic acid) [P(MMA/IA)] hydrogels for site specific drug delivery. J Drug Deliv Sci Technol 2009. [DOI: 10.1016/s1773-2247(09)50085-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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