1
|
Salmanin Amiri M, Ghadi A, Sharifzadeh Baei M. Design of bio-scaffold conjugated with chitosan-PEG nano-carriers containing bio-macromolecules of Verbascum sinuatum L. to differentiate human adipose-derived stem cells into dermal keratinocytes. Int J Biol Macromol 2024; 255:127520. [PMID: 37865358 DOI: 10.1016/j.ijbiomac.2023.127520] [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: 08/21/2023] [Revised: 09/23/2023] [Accepted: 10/07/2023] [Indexed: 10/23/2023]
Abstract
Regenerative medicine and drug delivery systems provide promising approaches for the treatment of skin lesions. However, the design of engineered substrates containing therapeutic agents for cell proliferation and its differentiation into skin cells, with skin-like patterns, is the major challenge. Here, to overcome this problem, a hybrid scaffold conjugated with nanoparticles containing the extract of Verbascum sinuatum L. flowers (HE) was designed. To this end, (chitosan-PEG)-based nanocarriers (Chi-PEG) were first prepared in the volume ratios of 90:10, 80:20, 70:30, and 50:50 v/v. The results indicated that the 70:30 ratio possessed better physical/morphologic properties along with more suitable stability than other nanoparticles (encapsulation-efficiency:86.34 %, zeta-potential:21.2 mV, and PDI:0.30). Afterward, PCL-collagen biologic scaffold (PCL-Coll) were prepared by the lyophilization method, then conjugated with selected nanoparticles(Chi-PEG70:30-HE). Notably, in addition to PCL-Coll/Chi-PEG-HE, two scaffolds of PCL-Coll and PCL-Coll/Chi-PEG were prepared to evaluate the role of conjugation in the release behavior of herbal bio-macromolecules. Based on the results, the conjugation process was led to a more stable release, compared to unconjugated nanoparticles. The mentioned process also created an integrated network along with better physicomechanical properties [modulus:12.31 MPa, tensile strength:4.44 MPa, smaller pore size(2 μm), and better swelling (100.27 %) with a symmetrical wettability on the surface]. PCL-Coll/Chi-PEG-HE scaffold was also resulted in higher expression levels of K10 and K14 keratinocytes with biomimetic patterns than PCL-Coll/Chi-PEG scaffold. This could be due to the active ingredients of V. sinuatum extract like alkaloids, flavonoids, and triterpenoids which imparts the wound healing (anti-inflammatory, anti-bacterial, anti-oxidant) properties to this scaffold. It seems that the use of bioactive materials like herbal extracts, in the form of encapsulated into polymeric nanocarriers, in the structure of engineered scaffolds can be a promising option for regenerating damaged skin without scarring. Hence, this study can provide innovative insights into the combination of two techniques of drug delivery and tissue engineering to design bio-scaffolds containing bioactive molecules with better therapeutic approaches.
Collapse
Affiliation(s)
- Mahsa Salmanin Amiri
- Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol 678, Iran
| | - Arezoo Ghadi
- Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol 678, Iran.
| | - Mazyar Sharifzadeh Baei
- Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol 678, Iran
| |
Collapse
|
2
|
Muñoz-Nuñez C, Cuervo-Rodríguez R, Echeverría C, Fernández-García M, Muñoz-Bonilla A. Synthesis and characterization of thiazolium chitosan derivative with enhanced antimicrobial properties and its use as component of chitosan based films. Carbohydr Polym 2023; 302:120438. [PMID: 36604094 DOI: 10.1016/j.carbpol.2022.120438] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022]
Abstract
In this work, chemical modification of chitosan using cationic thiazolium groups was investigated with the aim to improve water solubility and antimicrobial properties of chitosan. Enzymatic synthesis and ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS) chemistry were employed to synthesize and attach to chitosan through the amine groups the molecule bearing thiazolium moieties, quaternized 4-(2-(4-methylthiazol-5-yl) ethoxy)-4-oxobutanoic acid (MTBAQ). On the basis of Fourier transform infrared spectroscopy (FTIR), elemental analysis and solid state nuclear magnetic resonance (ssNMR), around 95 % of the available amine groups of chitosan (of 25 % degree of acetylation) reacted. The resulting derivative was water soluble at physiological pH and exhibit excellent antimicrobial activity against Listeria innocua, Staphylococcus epidermidis, Staphylococcus aureus and Methicillin Resistant S. aureus Gram-positive bacteria (MIC = 8-32 μg/ mL), whereas its efficiency decreases against fungi Candida albicans and Eschericia coli Gram-negative bacterium. Subsequently, the thiazolium chitosan derivative was employed as antimicrobial component (up to 7 wt%) of chitosan/glycerol based films. The incorporation of the chitosan derivative does not modify significantly the characteristics of the film in terms of thermal and mechanical properties, while enhances considerably the antimicrobial activity.
Collapse
Affiliation(s)
- C Muñoz-Nuñez
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - R Cuervo-Rodríguez
- Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Avenida Complutense s/n, Ciudad Universitaria, 28040 Madrid, Spain
| | - C Echeverría
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - M Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain.
| | - A Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain.
| |
Collapse
|
3
|
Suyatma NE, Gunawan S, Putri RY, Tara A, Abbès F, Hastati DY, Abbès B. Active Biohybrid Nanocomposite Films Made from Chitosan, ZnO Nanoparticles, and Stearic Acid: Optimization Study to Develop Antibacterial Films for Food Packaging Application. MATERIALS (BASEL, SWITZERLAND) 2023; 16:926. [PMID: 36769933 PMCID: PMC9917979 DOI: 10.3390/ma16030926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Chitosan is a biopolymer with great potential as food packaging due to its ability to create a film without additives and its better mechanical and antibacterial qualities compared to other biopolymers. However, chitosan film still has limitations due to its high moisture sensitivity and limited flexibility. Incorporating ZnO nanoparticles (ZnO-NPs) and stearic acid (SA) into chitosan films was expected to improve tensile strength, water vapor barrier, and antibacterial capabilities. This study aims to find the optimal formula for biohybrid nanocomposite films composed of chitosan, ZnO-NPs, and SA. The full factorial design approach-4 × 2 with 3 replicates, i.e., two independent variables, namely %ZnO-NPs at 4 levels (0%, 0.5%, 1%, and 3%, w/w) and %SA at 2 levels (0% and 5%, w/w)-was utilized to optimize chitosan-based biohybrid nanocomposite films, with the primary interests being antibacterial activities, water vapor barrier, and tensile strength. The incorporation of ZnO-NPs into chitosan films could increase antibacterial activity, while SA decreased it. The addition of SA had a good effect only in decreasing water vapor transmission rate (WVTR) values but a detrimental effect on other film properties mentioned above. The incorporation of ZnO-NPs enhanced all functional packaging properties of interest. The suggested solution of the optimization study has been validated. As a result, the formula with the inclusion of 1% ZnO-NPs without SA is optimal for the fabrication of active antibacterial films with excellent multifunctional packaging capabilities.
Collapse
Affiliation(s)
- Nugraha Edhi Suyatma
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, IPB University, Bogor 16880, Indonesia
| | - Sanjaya Gunawan
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, IPB University, Bogor 16880, Indonesia
| | - Rani Yunia Putri
- Department of Food Science and Technology, Faculty of Agricultural Engineering and Technology, IPB University, Bogor 16880, Indonesia
| | - Ahmed Tara
- MATIM, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Campus Moulin de la Housse, 51100 Reims, France
| | - Fazilay Abbès
- MATIM, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Campus Moulin de la Housse, 51100 Reims, France
| | - Dwi Yuni Hastati
- Food Quality Assurance, College of Vocational Studies, IPB University, Bogor 16128, Indonesia
| | - Boussad Abbès
- MATIM, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Campus Moulin de la Housse, 51100 Reims, France
| |
Collapse
|
4
|
Erol I, Hazman Ö, Aksu M, Bulut E. Synergistic effect of ZnO nanoparticles and hesperidin on the antibacterial properties of chitosan. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1973-1997. [PMID: 35797143 DOI: 10.1080/09205063.2022.2099668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
In this study, hesperidin (HSP) biological agent, which has strong antioxidant properties, was successfully transferred to ZnO nanoparticles, which were first synthesized by the hydrothermal method. Then, chitosan (CS)/ZnO-HSP nanocomposites were produced by adding different ratios of the ZnO-HSPs to the biodegradable CS biopolymer by hydrothermal method. The resulting materials were characterized using various biophysical strategies, including X-ray diffraction (XRD), Fourier transform infrared spectrometry, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy. The mean particle size of ZnO was estimated to be 29 nm from the XRD calculations and SEM measurements. The effect of the ZnO-HSPs on the thermal properties of pure CS was investigated by thermogravimetric analysis and differential scanning calorimetry techniques, and improvements were noted in the thermal properties of CS. While the Tg value of CS was 81 °C, this value increased by 13-94 °C with the addition of 6 wt% by weight of the ZnO-HSP. The antibacterial effect of materials was determined by the disc diffusion method. The ZnO-HSPs added to the CS caused the nanocomposites to have a remarkable effect against Escherichia coli and Staphylococcus aureus microorganisms. While the inhibition diameter of the CS against E. coli was 18.3, the same value increased to 22.3 for the composite containing 6 wt% the ZnO-HSP. The HSP increased the antioxidant capacity of both the ZnO-HSP particles and the CS/ZnO-HSP nanocomposites, reducing the toxic effects of ZnO nanoparticles. Thus, it was determined that the CS/ZnO-HSP nanocomposites did not have any cytotoxicity in healthy human cells. The fact that the produced nanocomposites exhibit antibacterial activity and do not harm human cells shows that they can be a safe product for health. From all these results, this triple hybrid system is hoped that it will be used in biomedical applications as a naturally-sourced, environmentally friendly, and cost-effective composite biomaterial by combining its antimicrobial and strong antioxidant properties.
Collapse
Affiliation(s)
- Ibrahim Erol
- Department of Chemistry, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Ömer Hazman
- Department of Chemistry, Faculty of Science and Arts, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Mecit Aksu
- Department of Chemistry, Faculty of Science and Arts, Düzce University, Düzce, Turkey
| | - Emine Bulut
- Department of Food Processing, Bolvadin Vocational School, Afyon Kocatepe University, Afyonkarahisar, Turkey
| |
Collapse
|
5
|
Huang P, Su W, Han R, Lin H, Yang J, Xu L, Ma L. Physicochemical, Antibacterial Properties, and Compatibility of ZnO-NP/Chitosan/β-Glycerophosphate Composite Hydrogels. J Microbiol Biotechnol 2022; 32:522-530. [PMID: 35001011 PMCID: PMC9628871 DOI: 10.4014/jmb.2111.11024] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/26/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022]
Abstract
In this study we aimed to develop novel ZnO-NP/chitosan/β-glycerophosphate (ZnO-NP/CS/β-GP) antibacterial hydrogels for biomedical applications. According to the mass fraction ratio of ZnO-NPs to chitosan, mixtures of 1, 3, and 5% ZnO-NPs/CS/β-GP were prepared. Using the test-tube inversion method, scanning electron microscopy and Fourier-transform infrared spectroscopy, the influence of ZnO-NPs on gelation time, chemical composition, and cross-sectional microstructures were evaluated. Adding ZnO-NPs significantly improved the hydrogel's antibacterial activity as determined by bacteriostatic zone and colony counting. The hydrogel's bacteriostatic mechanism was investigated using live/dead fluorescent staining and scanning electron microscopy. In addition, crystal violet staining and MTT assay demonstrated that ZnO-NPs/CS/β-GP exhibited good antibacterial activity in inhibiting the formation of biofilms and eradicating existing biofilms. CCK-8 and live/dead cell staining methods revealed that the cell viability of gingival fibroblasts (L929) cocultured with hydrogel in each group was above 90% after 24, 48, and 72 h. These results suggest that ZnO-NPs improve the temperature sensitivity and bacteriostatic performance of chitosan/β-glycerophosphate (CS/β-GP), which could be injected into the periodontal pocket in solution form and quickly transformed into hydrogel adhesion on the gingiva, allowing for a straightforward and convenient procedure. In conclusion, ZnO-NP/CS/β-GP thermosensitive hydrogels could be expected to be utilized as adjuvant drugs for clinical prevention and treatment of peri-implant inflammation.
Collapse
Affiliation(s)
- Pingping Huang
- The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China,School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Wen Su
- School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Rui Han
- The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China,School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Hao Lin
- School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Jing Yang
- School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Libin Xu
- School of Stomatology of Qingdao University, Qingdao 266003, P.R. China
| | - Lei Ma
- The Affiliated Hospital of Qingdao University, Qingdao 266003, P.R. China,School of Stomatology of Qingdao University, Qingdao 266003, P.R. China,Corresponding author Phone: +86-18653271498 Fax: +86-82911782 E-mail:
| |
Collapse
|
6
|
Brebels J, Mignon A. Polymer-Based Constructs for Flexor Tendon Repair: A Review. Polymers (Basel) 2022; 14:polym14050867. [PMID: 35267690 PMCID: PMC8912457 DOI: 10.3390/polym14050867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/15/2022] [Accepted: 02/20/2022] [Indexed: 02/04/2023] Open
Abstract
A flexor tendon injury is acquired fast and is common for athletes, construction workers, and military personnel among others, treated in the emergency department. However, the healing of injured flexor tendons is stretched over a long period of up to 12 weeks, therefore, remaining a significant clinical problem. Postoperative complications, arising after traditional tendon repair strategies, include adhesion and tendon scar tissue formation, insufficient mechanical strength for early active mobilization, and infections. Various researchers have tried to develop innovative strategies for developing a polymer-based construct that minimalizes these postoperative complications, yet none are routinely used in clinical practice. Understanding the role such constructs play in tendon repair should enable a more targeted approach. This review mainly describes the polymer-based constructs that show promising results in solving these complications, in the hope that one day these will be used as a routine practice in flexor tendon repair, increasing the well-being of the patients. In addition, the review also focuses on the incorporation of active compounds in these constructs, to provide an enhanced healing environment for the flexor tendon.
Collapse
|
7
|
Li Y, Zhou Y, Wang Z, Cai R, Yue T, Cui L. Preparation and Characterization of Chitosan-Nano-ZnO Composite Films for Preservation of Cherry Tomatoes. Foods 2021; 10:foods10123135. [PMID: 34945686 PMCID: PMC8702072 DOI: 10.3390/foods10123135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 01/04/2023] Open
Abstract
Chitosan is widely used as a natural preservative of fruits and vegetables, but its poor mechanical and water resistances have limited its application. Therefore, in this study, we prepared chitosan composite films by incorporating different amounts of nano-zinc oxide (nano-ZnO) to improve the mechanical properties of chitosan. We also assessed the antibacterial activity of these films against selected microorganisms. The addition of nano-ZnO improved the tensile strength (TS) and elongation at break (EAB) of the chitosan films and reduced their light transmittance. TS and EAB increased from 44.64 ± 1.49 MPa and 5.09 ± 0.38% for pure chitosan film to 46.79 ± 1.65 MPa and 12.26 ± 0.41% for a 0.6% nano-ZnO composite film, respectively. The ultraviolet light transmittance of composite films containing 0.2%, 0.4%, and 0.6% nano-ZnO at 600 nm decreased from 88.2% to 86.0%, 82.7%, and 81.8%, respectively. A disc diffusion test showed that the composite film containing 0.6% nano-ZnO had the strongest antibacterial activity against Alicyclobacillus acidoterrestris, Staphylococcus aureus, Escherichia coli, and Salmonella. In a 15-day preservation study, chitosan composite films containing 0.6% nano-ZnO maintained the soluble solid content of cherry tomatoes, effectively inhibited their respiration, and exhibited good antibacterial properties against the selected microorganisms. Overall, the prepared chitosan nano-ZnO composite film showed a good preservation effect on cherry tomatoes.
Collapse
Affiliation(s)
| | | | | | | | | | - Lu Cui
- Correspondence: Correspondence: ; Tel.: +86-29-87092486
| |
Collapse
|
8
|
Chitosan Nanocomposite Coatings Containing Chemically Resistant ZnO-SnO x Core-shell Nanoparticles for Photocatalytic Antifouling. Int J Mol Sci 2021; 22:ijms22094513. [PMID: 33925962 PMCID: PMC8123458 DOI: 10.3390/ijms22094513] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/21/2022] Open
Abstract
Functional nanocomposites with biopolymers and zinc oxide (ZnO) nanoparticles is an emerging application of photocatalysis in antifouling coatings. The reduced chemical stability of ZnO in the acidic media in which chitosan is soluble affects the performance of chitosan nanocomposites in antifouling applications. In this study, a thin shell of amorphous tin dioxide (SnOx) was grown on the surface of ZnO to form ZnO–SnOx core–shell nanoparticles that improved the chemical stability of the photocatalyst nanoparticles, as examined at pH 3 and 6. The photocatalytic activity of ZnO–SnOx in the degradation of methylene blue (MB) dye under visible light showed a higher efficiency than that of ZnO nanoparticles due to the passivation of electronic defects. Chitosan-based antifouling coatings with varying percentages of ZnO or ZnO–SnOx nanoparticles, with or without the glutaraldehyde (GA) crosslinking of chitosan, were developed and studied. The incorporation of photocatalysts into the chitosan matrix enhanced the thermal stability of the coatings. Through a mesocosm study using running natural seawater, it was found that chitosan/ZnO–SnOx/GA coatings enabled better inhibition of bacterial growth compared to chitosan coatings alone. This study demonstrates the antifouling potential of chitosan nanocomposite coatings containing core–shell nanoparticles as an effective solution for the prevention of biofouling.
Collapse
|
9
|
Din MI, Sehar R, Hussain Z, Khalid R, Shah AT. Synthesis of biodegradable semolina starch plastic films reinforced with biogenically synthesized ZnO nanoparticles. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1813768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Rimsha Sehar
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Zaib Hussain
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Rida Khalid
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | | |
Collapse
|
10
|
Prokhorov E, Luna-Bárcenas G, Yáñez Limón JM, Gómez Sánchez A, Kovalenko Y. Chitosan-ZnO Nanocomposites Assessed by Dielectric, Mechanical, and Piezoelectric Properties. Polymers (Basel) 2020; 12:E1991. [PMID: 32882974 PMCID: PMC7563996 DOI: 10.3390/polym12091991] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 11/16/2022] Open
Abstract
The aim of this work is to structurally characterize chitosan-zinc oxide nanoparticles (CS-ZnO NPs) films in a wide range of NPs concentration (0-20 wt.%). Dielectric, conductivity, mechanical, and piezoelectric properties are assessed by using thermogravimetry, FTIR, XRD, mechanical, and dielectric spectroscopy measurements. These analyses reveal that the dielectric constant, Young's modulus, and piezoelectric constant (d33) exhibit a strong dependence on nanoparticle concentration such that maximum values of referred properties are obtained at 15 wt.% of ZnO NPs. The piezoelectric coefficient d33 in CS-ZnO nanocomposite films with 15 wt.% of NPs (d33 = 65.9 pC/N) is higher than most of polymer-ZnO nanocomposites because of the synergistic effect of piezoelectricity of NPs, elastic properties of CS, and optimum NPs concentration. A three-phase model is used to include the chitosan matrix, ZnO NPs, and interfacial layer with dielectric constant higher than that of neat chitosan and ZnO. This layer between nanoparticles and matrix is due to strong interactions between chitosan's side groups with ZnO NPs. The understanding of nanoscale properties of CS-ZnO nanocomposites is important in the development of biocompatible sensors, actuators, nanogenerators for flexible electronics and biomedical applications.
Collapse
Affiliation(s)
- Evgen Prokhorov
- Cinvestav, Unidad Querétaro, Querétaro 76230, QRO, Mexico; (G.L.-B.); (J.M.Y.L.); (A.G.S.)
| | - Gabriel Luna-Bárcenas
- Cinvestav, Unidad Querétaro, Querétaro 76230, QRO, Mexico; (G.L.-B.); (J.M.Y.L.); (A.G.S.)
| | | | | | - Yuriy Kovalenko
- Postgraduate Department, University of Aeronautics of Querétaro, Querétaro 76278, QRO, Mexico;
| |
Collapse
|
11
|
Boura-Theodoridou O, Giannakas A, Katapodis P, Stamatis H, Ladavos A, Barkoula NM. Performance of ZnO/chitosan nanocomposite films for antimicrobial packaging applications as a function of NaOH treatment and glycerol/PVOH blending. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2019.100456] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
Chitosan and polyethylene glycol based membranes with antibacterial properties for tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:606-615. [DOI: 10.1016/j.msec.2018.11.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 10/10/2018] [Accepted: 11/21/2018] [Indexed: 02/06/2023]
|
13
|
Greener synthesis of zinc oxide nanoparticles using Trianthema portulacastrum extract and evaluation of its photocatalytic and biological applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 192:147-157. [PMID: 30738346 DOI: 10.1016/j.jphotobiol.2019.01.013] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/20/2018] [Accepted: 01/29/2019] [Indexed: 11/21/2022]
Abstract
Synthesis of nanoparticles (NPs) through "green" chemistry is an exciting area of research with wide applications. Trianthema portulacastrum's extract containing greater amount of reducing agents has been explored first time for the synthesis of ZnO-NPs that characterized with UV/Vis, XRD, FT-IR, SEM,EDX, HR-TEM and XPS. The particles of ZnO-NPs are crystalline and having the size in the range of 25-90 nm. The cell viability of ZnO-NPs was studied using Mouse pre-osteoblast cell line MC3T3-E1 sub-clone 14 cells which confirmed its biocompatibility that render for biomedical applications. The antibacterial properties were evaluated against Staphylococcus aureus and Escherichia coli which showed high potency of synthesized ZnO-NPs against these species. The antifungal activities of ZnO-NPs were screened against Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus of fungal species. The antioxidant activity of the as-synthesized NPs was also studied using DPPH (2, 2-diphenyl-1-picrylhydrazyl) substrate. The ZnO-NPs were evaluated for catalytic activity through degradation of Synozol Navy Blue-KBF textile dye using solar irradiation that causes 91% degradation of the dye in 159 min. Mechanistic pathways for the degradation of Synozol Navy Blue-KBF dye using ZnO-NPs were also proposed from the pattern of the degradation of the dye and the resulting by-products. The results concluded that the ZnO-NPs synthesized by green method have high biological and photocatalytic applications.
Collapse
|
14
|
Ponnamma D, Cabibihan JJ, Rajan M, Pethaiah SS, Deshmukh K, Gogoi JP, Pasha SKK, Ahamed MB, Krishnegowda J, Chandrashekar BN, Polu AR, Cheng C. Synthesis, optimization and applications of ZnO/polymer nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1210-1240. [PMID: 30813004 DOI: 10.1016/j.msec.2019.01.081] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 12/02/2018] [Accepted: 01/20/2019] [Indexed: 01/15/2023]
Abstract
Polymer composites have established an excellent position among the technologically essential materials because of their wide range of applications. An enormous research interest has been devoted to zinc oxide (ZnO) based polymer nanocomposites, due to their exceptional electrical, optical, thermal, mechanical, catalytic, and biomedical properties. This article provides a review of various polymer composites consisting of ZnO nanoparticles (NPs) as reinforcements, exhibiting excellent properties for applications such as the dielectric, sensing, piezoelectric, electromagnetic shielding, thermal conductivity and energy storage. The preparation methods of such composites including solution blending, in situ polymerization, and melt intercalation are also explained. The current challenges and potential applications of these composites are provided in order to guide future progress on the development of more promising materials. Finally, a detailed summary of the current trends in the field is presented to progressively show the future prospects for the development of ZnO containing polymer nanocomposite materials.
Collapse
Affiliation(s)
| | - John-John Cabibihan
- Mechanical and Industrial Engineering Department, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mariappan Rajan
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - S Sundar Pethaiah
- Gashubin Engineering Pvt Ltd, 8 New Industrial Road, 536200, Singapore
| | - Kalim Deshmukh
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India.
| | - Jyoti Prasad Gogoi
- Department of Physics, The Assam Kaziranga University, Jorhat 785006, India
| | - S K Khadheer Pasha
- Department of Physics, VIT-AP University, Amaravati Campus, Guntur 522501, Andhra Pradesh, India
| | - M Basheer Ahamed
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 600048, TN, India
| | - Jagadish Krishnegowda
- Centre for Materials Science and Technology, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore 570006, India
| | - B N Chandrashekar
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
| | - Anji Reddy Polu
- Department of Physics, Vardhaman College of Engineering, Kacharam, Shamshabad, 501218 Hyderabad, Telangana, India
| | - Chun Cheng
- Department of Materials Science and Engineering and Shenzhen Key Laboratory of Nanoimprint Technology, South University of Science and Technology, Shenzhen 518055, PR China
| |
Collapse
|
15
|
Yousefi A, Sarrafzadeh-Rezaei F, Asri-Rezaei S, Farshid AA, Behfar M. Fabrication of novel tubular scaffold for tendon repair from chitosan in combination with zinc oxide nanoparticles. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2018; 9:105-111. [PMID: 30065798 PMCID: PMC6047579 DOI: 10.30466/vrf.2018.29979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 12/12/2017] [Indexed: 11/01/2022]
Abstract
Chitosan bears numerous properties, such as biocompatibility, biodegradability and non-toxicity making it suitable for use in different biomedical fields. Zinc (Zn) is required for fibroblasts proliferation and collagen synthesis as essential elements of wound healing. Its nanoparticles are well known for their capability to enhance wound healing by cell adhesion and migration improvement through growth factors-mediated mechanisms. Poor blood supply and unique histological characteristics of tendon make its regeneration always slow. Also, adhesion formation between tendon and its surrounding tissues is another problem for neotendon to return to its normal structure and functional activities. In this study, a novel tubular scaffold of zinc oxide (ZnO) nanoparticles loaded chitosan has been fabricated for tendon repair. Experimental complete tenotomy of deep digital flexor tendon in a rabbit model was done and scaffolds were placed in the transected area after two ends suturing. After four and eight weeks, adhesion formation around the tendons and tissue reaction to the scaffolds were evaluated macroscopically. Inflammation, angiogenesis and collagen fibers arrangement were also analyzed in histopathological evaluations. After eight weeks, the scaffolds were absorbed completely, adhesions around the tendon were decreased and there was no sign of significant tissue reaction and/or infection in histopathological analyses. The reduced adhesion formation, improved gliding function and better histopathological characteristics suggest this scaffold application as a potential therapy in treatment of tendon acute injuries.
Collapse
Affiliation(s)
- Alireza Yousefi
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Farshid Sarrafzadeh-Rezaei
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Siamak Asri-Rezaei
- Department of Internal Medicine and Clinical Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Amir-Abbas Farshid
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Mehdi Behfar
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| |
Collapse
|
16
|
Revathi T, Thambidurai S. Immobilization of ZnO on Chitosan-Neem seed composite for enhanced thermal and antibacterial activity. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
17
|
Ullah S, Zainol I, Chowdhury SR, Fauzi MB. Development of various composition multicomponent chitosan/fish collagen/glycerin 3D porous scaffolds: Effect on morphology, mechanical strength, biostability and cytocompatibility. Int J Biol Macromol 2018; 111:158-168. [PMID: 29305219 DOI: 10.1016/j.ijbiomac.2017.12.136] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/24/2017] [Accepted: 12/27/2017] [Indexed: 01/09/2023]
Abstract
The various composition multicomponent chitosan/fish collagen/glycerin 3D porous scaffolds were developed and investigated the effect of various composition chitosan/fish collagen/glycerin on scaffolds morphology, mechanical strength, biostability and cytocompatibility. The scaffolds were fabricated via freeze-drying technique. The effects of various compositions consisting in 3D scaffolds were investigated via FT-IR analysis, porosity, swelling and mechanical tests, and effect on the morphology of scaffolds investigated microscopically. The biostability and cytocompatibility tests were used to explore the ability of scaffolds to use for tissue engineering application. The average pore sizes of scaffolds were in range of 100.73±27.62-116.01±52.06, porosity 71.72±3.46-91.17±2.42%, tensile modulus in dry environment 1.47±0.08-0.17±0.03MPa, tensile modulus in wet environment 0.32±0.03-0.14±0.04MPa and biodegradation rate (at day 30) 60.38±0.70-83.48±0.28%. In vitro culture of human fibroblasts and keratinocytes showed that the various composition multicomponent 3D scaffolds were good cytocompatibility however, the scaffolds contained high amount of fish collagen excellently facilitated cell proliferation and adhesion. It was found that the high amount fish collagen and glycerin scaffolds have high porosity, enough mechanical strength and biostability, and excellent cytocompatibility.
Collapse
Affiliation(s)
- Saleem Ullah
- Polymer Labs, Chemistry Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Darul Ridzuan, Malaysia
| | - Ismail Zainol
- Polymer Labs, Chemistry Department, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Darul Ridzuan, Malaysia.
| | - Shiplu Roy Chowdhury
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia
| | - M B Fauzi
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, 56000, Cheras, Kuala Lumpur, Malaysia
| |
Collapse
|
18
|
Enhanced antibacterial activity and biocompatibility of zinc-incorporated organic-inorganic nanocomposite coatings via electrophoretic deposition. Colloids Surf B Biointerfaces 2017; 160:628-638. [DOI: 10.1016/j.colsurfb.2017.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/15/2017] [Accepted: 10/03/2017] [Indexed: 12/20/2022]
|
19
|
Li Y, Zhang C, Liu L, Gong Y, Xie Y, Cao Y. The effects of baicalein or baicalin on the colloidal stability of ZnO nanoparticles (NPs) and toxicity of NPs to Caco-2 cells. Toxicol Mech Methods 2017; 28:167-176. [PMID: 28868948 DOI: 10.1080/15376516.2017.1376023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Recent study suggested that the presence of phytochemicals in food could interact with nanoparticles (NPs) and consequently reduce the toxicity of NPs, which has been attributed to the antioxidant properties of phytochemicals. In this study, we investigated the interactions between ZnO NPs and two flavonoids baicalein (Ba) or baicalin (Bn) as well as the influence of the interactions on the toxicity of ZnO NPs to Caco-2 cells. The antioxidant properties of Ba and Bn were confirmed by 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays, with Ba being stronger. However, the presence of Ba or Bn did not significantly affect cytotoxicity, intracellular superoxide or release of inflammatory cytokines of Caco-2 cells after ZnO NP exposure. When Ba was present, the cellular viability of Caco-2 cells after exposure to ZnO NPs was slightly increased, associated with a modest decrease of intracellular Zn ions, but these effects were not statistically different. Ba was more effective than Bn at changing the hydrodynamic sizes, Zeta potential and UV-Vis spectra of ZnO NPs, which indicated that Ba might increase the colloidal stability of NPs. Taken together, the results of the present study indicated that the anti-oxidative phytochemical Ba might only modestly protected Caco-2 cells from the exposure to ZnO NPs associated with an insignificant reduction of the accumulation of intracellular Zn ions. These results also indicated that when assessing the combined effects of NPs and phytochemicals to cells lining gastrointestinal tract, it might be necessary to evaluate the changes of colloidal stability of NPs altered by phytochemicals.
Collapse
Affiliation(s)
- Yining Li
- a Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry , Xiangtan University , Xiangtan , PR China
| | - Cao Zhang
- a Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry , Xiangtan University , Xiangtan , PR China
| | - Liangliang Liu
- b Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences , Changsha , PR China
| | - Yu Gong
- a Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry , Xiangtan University , Xiangtan , PR China
| | - Yixi Xie
- a Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry , Xiangtan University , Xiangtan , PR China
| | - Yi Cao
- a Key Laboratory of Environment-Friendly Chemistry and Applications of Ministry Education, Laboratory of Biochemistry, College of Chemistry , Xiangtan University , Xiangtan , PR China.,b Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences , Changsha , PR China
| |
Collapse
|
20
|
Reconstruction of Craniomaxillofacial Bone Defects Using Tissue-Engineering Strategies with Injectable and Non-Injectable Scaffolds. J Funct Biomater 2017; 8:jfb8040049. [PMID: 29156629 PMCID: PMC5748556 DOI: 10.3390/jfb8040049] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 02/06/2023] Open
Abstract
Engineering craniofacial bone tissues is challenging due to their complex structures. Current standard autografts and allografts have many drawbacks for craniofacial bone tissue reconstruction; including donor site morbidity and the ability to reinstate the aesthetic characteristics of the host tissue. To overcome these problems; tissue engineering and regenerative medicine strategies have been developed as a potential way to reconstruct damaged bone tissue. Different types of new biomaterials; including natural polymers; synthetic polymers and bioceramics; have emerged to treat these damaged craniofacial bone tissues in the form of injectable and non-injectable scaffolds; which are examined in this review. Injectable scaffolds can be considered a better approach to craniofacial tissue engineering as they can be inserted with minimally invasive surgery; thus protecting the aesthetic characteristics. In this review; we also focus on recent research innovations with different types of stem-cell sources harvested from oral tissue and growth factors used to develop craniofacial bone tissue-engineering strategies.
Collapse
|
21
|
Ullah S, Zainol I, Idrus RH. Incorporation of zinc oxide nanoparticles into chitosan-collagen 3D porous scaffolds: Effect on morphology, mechanical properties and cytocompatibility of 3D porous scaffolds. Int J Biol Macromol 2017; 104:1020-1029. [DOI: 10.1016/j.ijbiomac.2017.06.080] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/07/2017] [Accepted: 06/17/2017] [Indexed: 01/09/2023]
|
22
|
In vitro physiological and antibacterial characterization of ZnO nanoparticle composites in simulated porcine gastric and enteric fluids. BMC Vet Res 2017. [PMID: 28623924 PMCID: PMC5474296 DOI: 10.1186/s12917-017-1101-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Diarrhea in piglets is one of the main causes of animal death after weaning; zinc oxide (ZnO) has been used in high doses for the control of this sickness. The aim of this study was to determine the physicochemical properties of ZnO nanoparticles synthesized and immobilized on a chitosan/alginate (CH/SA) complex and investigate the antimicrobial activity and in vitro release profile of zinc (Zn2+) from these new compounds. The ZnO nanoparticles composites were prepared and combined with CH/SA or CH/SA and sodium tripolyphosphate (TPP). The structure and morphology of the composites were analyzed by characterization methods such as X-ray diffraction, FTIR spectroscopy, thermogravimetric analysis, atomic absorption spectrophotometry and scanning electron microscopy. Results The crystallite size of ZnO nano was 17 nm and the novel ZnO composites were effective in protecting ZnO in simulated gastric fluid, where Zn2+ reached a concentration six-fold higher than the levels obtained with the unprotected commercial-zinc oxide. In addition, the novel composites suggest effective antimicrobial activity against Escherichia coli and Staphylococcus aureus. Conclusions The results described herein suggest that the novel nano composites may work as an alternative product for pig feeding as verified by the in vitro assays, and may also contribute to lower the zinc released in the environment by fecal excretion in animals waste.
Collapse
|
23
|
Mantripragada VP, Jayasuriya AC. Bone regeneration using injectable BMP-7 loaded chitosan microparticles in rat femoral defect. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:596-608. [PMID: 27040255 PMCID: PMC4839977 DOI: 10.1016/j.msec.2016.02.080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/11/2016] [Accepted: 02/24/2016] [Indexed: 01/20/2023]
Abstract
Injectable chitosan microparticles were prepared using a simple coacervation method under physiologically friendly conditions by eliminating oil or toxic chemical, and employing low temperature and pressure for growth factor stability. Amount of 200 ng of bone morphogenetic protein-7 (BMP-7) was incorporated in the chitosan microparticles by two methods: encapsulating and coating techniques. These microparticles were tested in vivo to determine the biological response in a rat femoral bone defect at 6 and 12 weeks. Four groups (n=10) were tested which include two groups for BMP-7 incorporated microparticles (by two techniques), microparticles without BMP-7, and defect itself (negative control). Healthy bone formation was observed around the microparticles, which were only confined to the defect site and did not disperse. Histology indicated minor inflammatory response around the microparticles at 6 weeks, which reduced by 12 weeks. Micro-CT analysis of bone surface density and porosity was found to be significantly more (p<0.05) for microparticles containing groups, in comparison with controls, which suggests that the new bone formed in the presence of microparticles is more interconnected and porous. Collagen fibrils analysis conducted using multiphoton microscopy showed significant improvement in the formation of bundled collagen area (%) in microparticles containing groups in comparison with controls, indicating higher cross-linking between the fibrils. Microparticles were biocompatible and did not degrade in the 12 week implant period.
Collapse
Affiliation(s)
| | - Ambalangodage C Jayasuriya
- Biomedical Engineering Program, The University of Toledo, Toledo, OH 43614-5807, USA; Department of Orthopaedic Surgery, The University of Toledo, Toledo, OH 43614-5807, USA.
| |
Collapse
|
24
|
Liu J, Feng X, Wei L, Chen L, Song B, Shao L. The toxicology of ion-shedding zinc oxide nanoparticles. Crit Rev Toxicol 2016; 46:348-84. [DOI: 10.3109/10408444.2015.1137864] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
25
|
Aryaei A, Liu J, Jayatissa AH, Jayasuriya AC. Cross-linked chitosan improves the mechanical properties of calcium phosphate-chitosan cement. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:14-9. [PMID: 26046262 PMCID: PMC4466097 DOI: 10.1016/j.msec.2015.04.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 02/26/2015] [Accepted: 04/21/2015] [Indexed: 12/16/2022]
Abstract
Calcium phosphate (CaP) cements are highly applicable and valuable materials for filling bone defects by minimally invasive procedures. The chitosan (CS) biopolymer is also considered as one of the promising biomaterial candidates in bone tissue engineering. In the present study, some key features of CaP-CS were significantly improved by developing a novel CaP-CS composite. For this purpose, CS was the first cross-linked with tripolyphosphate (TPP) and then mixed with CaP matrix. A group of CaP-CS samples without cross-linking was also prepared. Samples were fabricated and tested based on the known standards. Additionally, the effect of different powder (P) to liquid (L) ratios was also investigated. Both cross-linked and uncross-linked CaP-CS samples showed excellent washout resistance. The most significant effects were observed on Young's modulus and compressive strength in wet condition as well as surface hardness. In dry conditions, the Young's modulus of cross-linked samples was slightly improved. Based on the presented results, cross-linking does not have a significant effect on porosity. As expected, by increasing the P/L ratio of a sample, ductility and injectability were decreased. However, in the most cases, mechanical properties were enhanced. The results have shown that cross-linking can improve the mechanical properties of CaP-CS and hence it can be used for bone tissue engineering applications.
Collapse
Affiliation(s)
- Ashkan Aryaei
- Department of Mechanical Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Jason Liu
- School of Medicine, University of Toledo, OH 43614, USA
| | | | - A Champa Jayasuriya
- Department of Orthopaedic Surgery, University of Toledo, Toledo, OH 43614, USA.
| |
Collapse
|
26
|
Patel NG, Kumar A, Jayawardana VN, Woodworth CD, Yuya PA. Fabrication, nanomechanical characterization, and cytocompatibility of gold-reinforced chitosan bio-nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:336-44. [PMID: 25280713 DOI: 10.1016/j.msec.2014.08.042] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 07/25/2014] [Accepted: 08/16/2014] [Indexed: 12/01/2022]
Abstract
Chitosan, a naturally derived polymer represents one of the most technologically important classes of active materials with applications in a variety of industrial and biomedical fields. Gold nanoparticles (~32 nm) were synthesized via a citrate reduction method from chloroauric acid and incorporated in Chitosan matrix. Bio-nanocomposite films with varying concentrations of gold nanoparticles were prepared through solution casting process. Uniform distribution of gold nanoparticles was achieved throughout the chitosan matrix and was confirmed with SEM. Synthesis outcomes and prepared nanocomposites were characterized using SEM, TEM, EDX, SAED, UV-vis, XRD, DLS, and Zeta potential for their physical, morphological and structural properties. Nanoscale properties of materials under the influence of temperature were characterized through nanoindentation techniques. From quasi-static nanoindentation, it was observed that hardness and reduced modulus of the nanocomposites were increased significantly in direct proportion to the gold nanoparticle concentration. Gold nanoparticle concentration also showed positive impact on storage modulus and thermal stability of the material. The obtained films were confirmed to be biocompatible by their ability to support growth of human cells in vitro. In summary, the results show enhanced mechanical properties with increasing gold nanoparticle concentration, and provide better understanding of the structure-property relationships of such biocompatible materials for potential biomedical applications.
Collapse
Affiliation(s)
- Nimitt G Patel
- Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY, 13699, USA; Materials Science and Engineering PhD Program, Clarkson University, Potsdam, NY, 13699, USA
| | - Ajeet Kumar
- Center for Advanced Materials Processing, Clarkson University, Potsdam, NY, 13699, USA
| | | | | | - Philip A Yuya
- Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY, 13699, USA.
| |
Collapse
|
27
|
Wysokowski M, Motylenko M, Stöcker H, Bazhenov VV, Langer E, Dobrowolska A, Czaczyk K, Galli R, Stelling AL, Behm T, Klapiszewski Ł, Ambrożewicz D, Nowacka M, Molodtsov SL, Abendroth B, Meyer DC, Kurzydłowski KJ, Jesionowski T, Ehrlich H. An extreme biomimetic approach: hydrothermal synthesis of β-chitin/ZnO nanostructured composites. J Mater Chem B 2013; 1:6469-6476. [DOI: 10.1039/c3tb21186j] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|