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Guo C, Li Y, Qi C, Sun H, Zhang D, Wan Y. Effect of solvent acids on the microstructure and corrosion resistance of chitosan films on MAO-treated AZ31B magnesium alloy. Int J Biol Macromol 2024; 277:134349. [PMID: 39094857 DOI: 10.1016/j.ijbiomac.2024.134349] [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: 04/11/2024] [Revised: 07/20/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
This study evaluated the effect of solvent acids on the structure and corrosion resistance performance of chitosan (CS) film on MAO-treated AZ31B magnesium (Mg) alloy. Initially, CS solutions were prepared in four solvent acids: acetic acid (HAc), lactic acid (LA), hydrochloric acid (HCl), and citric acid (CA). The CS films were subsequently deposited on MAO-treated AZ31B Mg alloy via a dip-coating technique. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FT-IR), contact angle measurement, and atomic force microscopy (AFM) were employed to characterize the surface and cross-sectional morphology as well as chemical composition. Furthermore, the samples were subjected to potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) tests to assess their resistance against corrosion in simulated body fluid (SBF). These results indicated that the CS film prepared with LA exhibited the lowest surface roughness (Ra = 31.2 nm), the largest contact angle (CA = 98.50°), and the thickest coating (36 μm). Additionally, it demonstrated superior corrosion protection performance, with the lowest corrosion current density (Icorr = 3.343 × 10-7 A/cm2), highest corrosion potential (Ecorr = -1.49 V), and highest polarization resistance (Rp = 5.914 × 104 Ω·cm2) in SBF. These results indicated that solvent acid types significantly influenced their interactions with CS. Thus, the structure and corrosion protection performance of CS films can be optimized by selecting an appropriate solvent acid.
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Affiliation(s)
- Chunting Guo
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China
| | - Yang Li
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China; School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Caixia Qi
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, PR China
| | - Huilai Sun
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China
| | - Dejian Zhang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
| | - Yong Wan
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China; Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou 730000, PR China.
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Shipovskaya AB, Ushakova OS, Volchkov SS, Shipenok XM, Shmakov SL, Gegel NO, Burov AM. Chiral Nanostructured Glycerohydrogel Sol-Gel Plates of Chitosan L- and D-Aspartate: Supramolecular Ordering and Optical Properties. Gels 2024; 10:427. [PMID: 39057450 PMCID: PMC11275427 DOI: 10.3390/gels10070427] [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: 05/27/2024] [Revised: 06/19/2024] [Accepted: 06/24/2024] [Indexed: 07/28/2024] Open
Abstract
A comprehensive study was performed on the supramolecular ordering and optical properties of thin nanostructured glycerohydrogel sol-gel plates based on chitosan L- and D-aspartate and their individual components in the X-ray, UV, visible, and IR ranges. Our comparative analysis of chiroptical characteristics, optical collimated transmittance, the average cosine of the scattering angle, microrelief and surface asymmetry, and the level of structuring shows a significant influence of the wavelength range of electromagnetic radiation and the enantiomeric form of aspartic acid on the functional characteristics of the sol-gel materials. At the macrolevel of the supramolecular organization, a complex topography of the surface layer and a dense amorphous-crystalline ordering of polymeric substances were revealed, while at the nanolevel, there were two forms of voluminous scattering domains: nanospheres with diameters of 60-120 nm (L-) and 45-55 nm (D-), anisometric particles of lengths within ~100-160 (L-) and ~85-125 nm (D-), and widths within ~10-20 (L-) and ~20-30 nm (D-). The effect of optical clearing on glass coated with a thin layer of chitosan L-(D-)aspartate in the near-UV region was discovered (observed for the first time for chitosan-based materials). The resulting nanocomposite shape-stable glycerohydrogels seem promising for sensorics and photonics.
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Affiliation(s)
- Anna B. Shipovskaya
- Institute of Chemistry, Saratov State University, Saratov 410012, Russia; (A.B.S.); (O.S.U.); (X.M.S.); (N.O.G.)
| | - Olga S. Ushakova
- Institute of Chemistry, Saratov State University, Saratov 410012, Russia; (A.B.S.); (O.S.U.); (X.M.S.); (N.O.G.)
| | - Sergei S. Volchkov
- Department of Physics, Yuri Gagarin Saratov State Technical University, Saratov 410054, Russia;
- Saratov Branch, Institute of Radio Engineering and Electronics of Russian Academy of Sciences, 38 Zelyonaya St., Saratov 410019, Russia
| | - Xenia M. Shipenok
- Institute of Chemistry, Saratov State University, Saratov 410012, Russia; (A.B.S.); (O.S.U.); (X.M.S.); (N.O.G.)
| | - Sergei L. Shmakov
- Institute of Chemistry, Saratov State University, Saratov 410012, Russia; (A.B.S.); (O.S.U.); (X.M.S.); (N.O.G.)
| | - Natalia O. Gegel
- Institute of Chemistry, Saratov State University, Saratov 410012, Russia; (A.B.S.); (O.S.U.); (X.M.S.); (N.O.G.)
| | - Andrey M. Burov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences, Saratov 410049, Russia;
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Formation, structure, properties of chitosan aspartate and metastable state of its solutions for obtaining nanoparticles. Carbohydr Polym 2022; 277:118773. [PMID: 34893217 DOI: 10.1016/j.carbpol.2021.118773] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/29/2021] [Accepted: 10/04/2021] [Indexed: 02/02/2023]
Abstract
Chitosan (200 kDa) dissolution in an aqueous solution of L-aspartic acid, physicochemical properties and features of the resulting chitosan salt were studied by conductometry, potentiometry, viscometry, turbidimetry, IR and NMR spectroscopy, and X-ray diffractometry. Chitosan aspartate is a water-soluble hydrated polymorph exhibiting properties of a cationic polyelectrolyte with an effective macromolecular coil radius 60-75 nm. The specific conductivity, dielectric constant, viscosity and pH of the chitosan - L-aspartic acid - water system change over time after preparation due to counterion-polycation association to form ion pairs, multiplet structures, and their subsequent aggregation. As a result, nanoparticles (40-90 nm) are formed after ~24 h, microparticles (0.6-1.4 μm) are after ~48 h, and precipitation occurs after 72-96 h. The precipitated phase is a water-insoluble chitosan salt with a developed system of H-bonds and high crystallinity degree. Chitosan nanoparticles have high biocompatibility and the ability to accelerate the proliferative activity of epithelial cells. HYPOTHESIS: Ion pairs and multiplets are formed in the chitosan - L-aspartic acid - water system due to counterion association, which leads to phase segregation of the polymer substance at the level of nanoparticles and microparticles.
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Qiao C, Ma X, Wang X, Liu L. Structure and properties of chitosan films: Effect of the type of solvent acid. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.109984] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Zia Q, Tabassum M, Meng J, Xin Z, Gong H, Li J. Polydopamine-assisted grafting of chitosan on porous poly (L-lactic acid) electrospun membranes for adsorption of heavy metal ions. Int J Biol Macromol 2020; 167:1479-1490. [PMID: 33221270 DOI: 10.1016/j.ijbiomac.2020.11.101] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/09/2020] [Accepted: 11/13/2020] [Indexed: 12/12/2022]
Abstract
In this study, a versatile method for the manufacturing of chitosan-grafted porous poly (L-lactic acid) (P-PLLA) nanofibrous membrane by using polydopamine (PDA) as an intermediate layer has been developed. P-PLLA fibres were electrospun and collected as nano/micro fibrous membranes. Highly porous fibres could serve as a substrate for chitosan to adsorb heavy metal ions. Moreover, PDA was used to modify P-PLLA surface to increase the coating uniformity and stability of chitosan. Due to the very high surface area of P-PLLA membranes and abundant amine groups of both PDA and chitosan, the fabricated membranes were utilized as adsorbent for removal of copper (Cu2+) ions from the wastewater. The adsorption capability of Cu2+ ions was examined with respect to the PDA polymerization times, pH, initial metal ion concentration and time. Finally, the equilibrium adsorption data of chitosan-grafted membranes fitted well with the Langmuir isotherm with the maximum adsorption capacity of 270.27 mg/g.
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Affiliation(s)
- Qasim Zia
- Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Madeeha Tabassum
- School of Engineering & Materials Science, Queen Mary University of London, Mile End Road E1 4NS, United Kingdom
| | - Jinmin Meng
- Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Zhiying Xin
- Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Hugh Gong
- Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Jiashen Li
- Department of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom.
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Qiao C, Ma X, Wang X, Yao J. Effect of water on the thermal transition in chitosan films. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Congde Qiao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China
| | - Xianguang Ma
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China
| | - Xujie Wang
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China
| | - Jinshui Yao
- School of Materials Science and EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China
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Ma X, Qiao C, Wang X, Yao J, Xu J. Structural characterization and properties of polyols plasticized chitosan films. Int J Biol Macromol 2019; 135:240-245. [DOI: 10.1016/j.ijbiomac.2019.05.158] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/30/2019] [Accepted: 05/21/2019] [Indexed: 10/26/2022]
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8
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Shipovskaya AB, Shmakov SL, Gegel NO. Optical activity anisotropy of chitosan-based films. Carbohydr Polym 2019; 206:476-486. [PMID: 30553347 DOI: 10.1016/j.carbpol.2018.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/23/2018] [Accepted: 11/08/2018] [Indexed: 01/28/2023]
Abstract
The optical activity [α] of films of chitosan and chitosan acetate was studied. [α] depended on the orientation angle θ of the film sample around the light beam. The angular dependences [α] = f(θ) (indicatrices) were processed to extract the constant term [α]0and four harmonics ([α]i, Fourier's series) determined by structure elements with the corresponding symmetry: the amorphous (isotropic) phase of chitosan ([α]0), irregular-shaped structures ([α]1), rod-shaped ones in the film plane ([α]2), helical ones located perpendicular to the film surface ([α]3), and crystalline structures ([α]4). The contribution of individual supramolecular structures to the overall optical activity of chitosan was estimated: [α]2 and [α]4 predominated for the fresh chitosan acetate films, while [α]4 did for the chitosan ones. The results of the numerical decomposition of indicatrices are in satisfactory agreement with X-ray diffractometry data. The observed regularities predetermine prospects for obtaining stereoselective chiro-optic chitosan-based materials with novel functional properties.
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Affiliation(s)
- Anna B Shipovskaya
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation.
| | - Sergei L Shmakov
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation
| | - Natalia O Gegel
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation; Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russian Federation.
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Qiao C, Ma X, Zhang J, Yao J. Effect of hydration on water state, glass transition dynamics and crystalline structure in chitosan films. Carbohydr Polym 2019; 206:602-608. [DOI: 10.1016/j.carbpol.2018.11.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 09/15/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
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10
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Bary EMA, Harmal AN, Gouda MA. Synthesis, characterization, swelling-deswelling properties of Novel nanoparticle-hydrogel containing core chitosan and their cyclohexanone-crosslinked counterparts. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Ammar N. Harmal
- Department of Chemistry, Mansoura University, Mansoura, Egypt
- Department of Chemistry, Sa’adah University, Sa'adah, Yemen Sa’adah
| | - Moustafa A. Gouda
- Department of Chemistry, Mansoura University, Mansoura, Egypt
- Department of Chemistry, Taibah University, Ulla, Kingdom of Saudi Arabia
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Ma X, Qiao C, Zhang J, Xu J. Effect of sorbitol content on microstructure and thermal properties of chitosan films. Int J Biol Macromol 2018; 119:1294-1297. [DOI: 10.1016/j.ijbiomac.2018.08.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/30/2018] [Accepted: 08/12/2018] [Indexed: 11/16/2022]
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12
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Yu L, Yakubov GE, Martínez-Sanz M, Gilbert EP, Stokes JR. Rheological and structural properties of complex arabinoxylans from Plantago ovata seed mucilage under non-gelled conditions. Carbohydr Polym 2018; 193:179-188. [PMID: 29773370 DOI: 10.1016/j.carbpol.2018.03.096] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/06/2018] [Accepted: 03/29/2018] [Indexed: 11/15/2022]
Abstract
Two gel-forming arabinoxylan (AX) fractions with very similar linkage composition and molecular weight distributions have been isolated from Plantago ovata seed mucilage. Both isolated fractions have distinct gel properties attributed to differences in intermolecular hydrogen bonding. This study probes the effect of hydrogen bonding on molecular interactions of P. ovata AX fractions under non-gelled conditions achieved using a mild hydrogen bonding inhibitor, 0.2 M KOH. Chain conformation, relaxation dynamics and interactions between AX molecules are investigated using a combination of rheological techniques and small angle X-ray and neutron scattering. The scattering data confirm similar molecular dimensions and chain rigidity for both fractions, while showing distinct patterns of molecular interactions which result in the formation of a self-associated polymer network. The relationship between molecular associations, chain relaxation time and entanglement behaviour of P. ovata AX solutions are corroborated though the analysis of flow profiles and small amplitude oscillatory shear rheology.
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Affiliation(s)
- Long Yu
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia; Australian Research Council Centre of Excellence in Plant Cell Walls, The University of Queensland, Brisbane, QLD, Australia
| | - Gleb E Yakubov
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia; Australian Research Council Centre of Excellence in Plant Cell Walls, The University of Queensland, Brisbane, QLD, Australia.
| | - Marta Martínez-Sanz
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Kirrawee DC, NSW, Australia
| | - Elliot P Gilbert
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Kirrawee DC, NSW, Australia; Australian Institute for Bioengineering and Nanotechnology and Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Jason R Stokes
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, Australia; Australian Research Council Centre of Excellence in Plant Cell Walls, The University of Queensland, Brisbane, QLD, Australia
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Fischer SA, Dunlap BI, Gunlycke D. Proton transport through hydrated chitosan-based polymer membranes under electric fields. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24361] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Brett I. Dunlap
- Chemistry Division; Naval Research Laboratory; Washington DC 20375
| | - Daniel Gunlycke
- Chemistry Division; Naval Research Laboratory; Washington DC 20375
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14
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Determining the influence of N-acetylation on water sorption in chitosan films. Carbohydr Polym 2015; 133:110-6. [DOI: 10.1016/j.carbpol.2015.07.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 07/03/2015] [Accepted: 07/04/2015] [Indexed: 11/20/2022]
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15
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Lin JH, Colby RH. Evolution of morphology, segmental dynamics, and conductivity in ionic liquid swollen short side chain perfluorosulfonate ionomer membranes. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23770] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun-Hong Lin
- Department of Mold and Die Engineering; National Kaohsiung University of Applied Sciences; 415 Chien Kung Road Kaohsiung 807 Taiwan, ROC
| | - Ralph H. Colby
- Department of Materials Science and Engineering; The Pennsylvania State University, University Park; Pennsylvania 16802
- Department of Chemical Engineering; The Pennsylvania State University, University Park; Pennsylvania 16802
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Kumar-Krishnan S, Prokhorov E, Ramírez M, Hernandez-Landaverde MA, Zarate-Triviño DG, Kovalenko Y, Sanchez IC, Méndez-Nonell J, Luna-Bárcenas G. Novel gigahertz frequency dielectric relaxations in chitosan films. SOFT MATTER 2014; 10:8673-8684. [PMID: 25254949 DOI: 10.1039/c4sm01804d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Molecular relaxations of chitosan films have been investigated in the wide frequency range of 0.1 to 3 × 10(9) Hz from -10 °C to 110 °C using dielectric spectroscopy. For the first time, two high-frequency relaxation processes (in the range 10(8) to 3 × 10(9) Hz) are reported in addition to the low frequency relaxations α and β. These two relaxation processes are related to the vibrations of OH and NH2/NH3(+), respectively. The high-frequency relaxations exhibit Arrhenius-type dependencies in the temperature range 10 °C to 54 °C with negative activation energy; this observation is traceable to hydrogen bonding reorientation. At temperatures above the glass transition temperature (54 °C), the activation energy changes from negative to positive values due to breaking of hydrogen bonding and water loss. Upon cooling in a sealed environment, the activation energies of two relaxation processes are nearly zero. FTIR and XRD analyses reveal associated structural changes upon heating and cooling. These two new high-frequency relaxation processes can be attributed to the interaction of bound water with OH and NH2/NH3(+), respectively. A plausible scenario for these high-frequency relaxations is discussed in light of impedance spectroscopy, TGA, FTIR and XRD measurements.
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Affiliation(s)
- Siva Kumar-Krishnan
- Cinvestav Queretaro, Libramiento Norponiente 2000, Queretaro, QRO 76230, Mexico.
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Panagopoulou A, Kyritsis A, Vodina M, Pissis P. Dynamics of uncrystallized water and protein in hydrated elastin studied by thermal and dielectric techniques. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:977-88. [DOI: 10.1016/j.bbapap.2013.03.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/15/2013] [Accepted: 03/16/2013] [Indexed: 11/24/2022]
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