1
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He Y, Cen Y, Tian M. Immunomodulatory hydrogels for skin wound healing: cellular targets and design strategy. J Mater Chem B 2024; 12:2435-2458. [PMID: 38284157 DOI: 10.1039/d3tb02626d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Skin wounds significantly impact the global health care system and represent a significant burden on the economy and society due to their complicated dynamic healing processes, wherein a series of immune events are required to coordinate normal and sequential healing phases, involving multiple immunoregulatory cells such as neutrophils, macrophages, keratinocytes, and fibroblasts, since dysfunction of these cells may impede skin wound healing presenting persisting inflammation, impaired vascularization, and excessive collagen deposition. Therefore, cellular target-based immunomodulation is promising to promote wound healing as cells are the smallest unit of life in immune response. Recently, immunomodulatory hydrogels have become an attractive avenue to promote skin wound healing. However, a detailed and comprehensive review of cellular targets and related hydrogel design strategies remains lacking. In this review, the roles of the main immunoregulatory cells participating in skin wound healing are first discussed, and then we highlight the cellular targets and state-of-the-art design strategies for immunomodulatory hydrogels based on immunoregulatory cells that cover defect, infected, diabetic, burn and tumor wounds and related scar healing. Finally, we discuss the barriers that need to be addressed and future prospects to boost the development and prosperity of immunomodulatory hydrogels.
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Affiliation(s)
- Yinhai He
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ying Cen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Meng Tian
- Department of Neurosurgery and Neurosurgery Research Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, China.
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2
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Zlotnikov ID, Ezhov AA, Dobryakova NV, Kudryashova EV. Disulfide Cross-Linked Polymeric Redox-Responsive Nanocarrier Based on Heparin, Chitosan and Lipoic Acid Improved Drug Accumulation, Increased Cytotoxicity and Selectivity to Leukemia Cells by Tumor Targeting via "Aikido" Principle. Gels 2024; 10:157. [PMID: 38534575 DOI: 10.3390/gels10030157] [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: 01/30/2024] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 03/28/2024] Open
Abstract
We have developed a micellar formulation of anticancer drugs based on chitosan and heparin grafted with lipoic and oleic acids that can release the cytotoxic cargo (doxorubicin) in response to external stimuli, such as increased glutathione concentration-a hallmark of cancer. Natural polysaccharides (heparin and chitosan) provide the pH sensitivity of the nanocarrier: the release of doxorubicin (Dox) is enhanced in a slightly acidic environment (tumor microenvironment). Fatty acid residues are necessary for the formation of nanoparticles (micelles) and solubilization of cytostatics in a hydrophobic core. Lipoic acid residues provide the formation of a labile S-S cross-linking between polymer chains (the first variant) or covalently attached doxorubicin molecules through glutathione-sensitive S-S bridges (the second variant)-both determine Redox sensitivity of the anticancer drugs carriers stable in blood circulation and disintegrate after intracellular uptake in the tumor cells. The release of doxorubicin from micelles occurs slowly (20%/6 h) in an environment with a pH of 7.4 and the absence of glutathione, while in a slightly acidic environment and in the presence of 10 mM glutathione, the rate increases up to 6 times, with an increase in the effective concentration up to 5 times after 7 h. The permeability of doxorubicin in micellar formulations (covalent S-S cross-linked and not) into Raji, K562, and A875 cancer cells was studied using FTIR, fluorescence spectroscopy and confocal laser scanning microscopy (CLSM). We have shown dramatically improved accumulation, decreased efflux, and increased cytotoxicity compared to doxorubicin control with three tumor cell lines: Raji, K562, and A875. At the same time, cytotoxicity and permeability for non-tumor cells (HEK293T) are significantly lower, increasing the selectivity index against tumor cells by several times.
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Affiliation(s)
- Igor D Zlotnikov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Alexander A Ezhov
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1/2, 119991 Moscow, Russia
| | - Natalia V Dobryakova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
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3
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Rajinikanth B S, Rajkumar DSR, K K, Vijayaragavan V. Chitosan-Based Biomaterial in Wound Healing: A Review. Cureus 2024; 16:e55193. [PMID: 38562272 PMCID: PMC10983058 DOI: 10.7759/cureus.55193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Wound healing is an evolving and intricate technique that is vital to the restoration of tissue integrity and function. Over the past few decades, chitosan a biopolymer derived from chitin, became known as an emerging biomaterial in the field of healing wounds due to its distinctive characteristics including biocompatibility, biodegradability, affinity to biomolecules, and wound-healing activity. This natural polymer exhibits excellent healing capabilities by accelerating the development of new skin cells, reducing inflammation, and preventing infections. Due to its distinct biochemical characteristics and innate antibacterial activity, chitosan has been extensively researched as an antibacterial wound dressing. Chronic wounds, such as diabetic ulcers and liver disease, are a growing medical problem. Chitosan-based biomaterials are a promising solution in the domain of wound care. The article analyzes the depth of chitosan-based biomaterials and their impact on wound healing and also the methods to enhance the advantages of chitosan by incorporating bioactive compounds. This literature review is aimed to improve the understanding and knowledge about biomaterials and their use in wound healing.
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Affiliation(s)
- Suba Rajinikanth B
- Pediatrics, Faculty of Medicine, Sri Lalithambigai Medical College and Hospital, Chennai, IND
| | | | - Keerthika K
- Biotechnology, ACS Advanced Medical Research Institute, Dr MGR Educational and Research Institute, Chennai, IND
| | - Vinothini Vijayaragavan
- Biotechnology, ACS Advanced Medical Research Institute, Dr MGR Educational and Research Institute, Chennai, IND
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Teshima R, Osawa S, Yoshikawa M, Kawano Y, Otsuka H, Hanawa T. Low-adhesion and low-swelling hydrogel based on alginate and carbonated water to prevent temporary dilation of wound sites. Int J Biol Macromol 2024; 254:127928. [PMID: 37944721 DOI: 10.1016/j.ijbiomac.2023.127928] [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: 07/28/2023] [Revised: 11/04/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023]
Abstract
Hydrogel-based wound dressings have been developed for rapid wound healing; however, their adhesive properties have not been adequately investigated. Excessive adhesion to the skin causes wound expansion and pain when hydrogels absorb exudates and swell at wound sites. Herein, we developed a low-adhesion and low-swelling hydrogel dressing using alginate, which is non-adhesive to cells and skin tissue, CaCO3, and carbonated water. The alginate/CaCO3 solution rapidly formed a hydrogel upon the addition of carbonated water, and the CO2 in the hydrogel diffused into the atmosphere, preventing acidification and obtaining a pH value suitable for wound healing. Remarkably, the skin adhesion and swelling of the hydrogel were 11.9- to 16.5-fold and 1.9-fold lower, respectively, than those of clinical low-adhesion hydrogel dressings. In vivo wound-healing tests in mice demonstrated its therapeutic efficacy, and the prepared hydrogel prevented temporary wound dilation during early healing. These results illustrate the importance of controlling skin adhesion and swelling in wound dressings and demonstrate the potential clinical applications of this wound-friendly hydrogel dressing.
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Affiliation(s)
- Ryota Teshima
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan.
| | - Shigehito Osawa
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan; Water Frontier Research Center (WaTUS), Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Miki Yoshikawa
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yayoi Kawano
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
| | - Hidenori Otsuka
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan; Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan; Water Frontier Research Center (WaTUS), Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Takehisa Hanawa
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
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5
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Zlotnikov ID, Malashkeevich SM, Belogurova NG, Kudryashova EV. Thermoreversible Gels Based on Chitosan Copolymers as "Intelligent" Drug Delivery System with Prolonged Action for Intramuscular Injection. Pharmaceutics 2023; 15:pharmaceutics15051478. [PMID: 37242720 DOI: 10.3390/pharmaceutics15051478] [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: 04/10/2023] [Revised: 05/06/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Thermosensitive gels based on copolymers (PEG-chitosan, chitosan-polyethylenimine, chitosan-arginine and glycol-chitosan-spermine) are presented as promising polycations for the formation of DNA polyplexes and the potential for the development of drugs with prolonged release (up to 30 days). Being in liquid form at room temperature, such compounds can be injected into muscle tissue with rapid gel formation at human body temperature. An intramuscular depot is formed with a therapeutic agent that provides a gradual release of the drug, such as an antibacterial or cytostatic. The physico-chemical parameters of the formation of polyplexes between polycationic polymers of various compositions and molecular architecture and DNA were studied via FTIR, UV-vis and fluorescence spectroscopy using the dyes rhodamine 6G (R6G) and acridine orange (AO). The competitive displacement of AO from AO-DNA complexes showed that, with a ratio of N/P = 1, most of the DNA is bound to a polycation. During the formation of polyplexes, the DNA charge is neutralized by a polycation, which is reflected in electrophoretic immobility. The cationic polymers described in this work at a concentration of 1-4% are capable of forming gels, and the thermoreversible property is most characteristic of pegylated chitosan. BSA, as a model anionic molecule, is released by half in 5 days from the Chit5-PEG5 gel; full release is achieved in 18-20 days. At the same time, in 5 days, the gel is destroyed up to 30%, and in 20 days, by 90% (release of chitosan particles). For the first time, flow cytometry was used to study DNA polyplexes, which showed the existence of fluorescent particles in a much larger number in combination with free DNA. Thus, functional stimulus-sensitive polymers are potentially applicable for the creation of prolonged therapeutic formulations for gene delivery systems, which were obtained. The revealed regularities appear to be a platform for the design of polyplexes with controllable stability, in particular, fulfilling the requirements imposed for gene delivery vehicles.
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Affiliation(s)
- Igor D Zlotnikov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | | | - Natalia G Belogurova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
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6
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Zlotnikov ID, Streltsov DA, Ezhov AA, Kudryashova EV. Smart pH- and Temperature-Sensitive Micelles Based on Chitosan Grafted with Fatty Acids to Increase the Efficiency and Selectivity of Doxorubicin and Its Adjuvant Regarding the Tumor Cells. Pharmaceutics 2023; 15:pharmaceutics15041135. [PMID: 37111621 PMCID: PMC10142014 DOI: 10.3390/pharmaceutics15041135] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/29/2023] Open
Abstract
The main factors that determine the low effectiveness of chemotherapy are the low target bioavailability of antitumor drugs and the efflux process. In attempts to overcome this problem, several approaches are proposed here. Firstly, the development of polymeric micellar systems based on chitosan grafted by fatty acids (different types to optimize their properties), which, on the one hand, increase the solubility and bioavailability of cytostatics and, on the other hand, effectively interact with tumor cells due to the polycationic properties of chitosan, allowing for more effective penetration of cytostatic drugs into the cells. Secondly, the use of adjuvants-synergists of cytostatics (such as eugenol) included in the same micellar formulation-that selectively enhance the accumulation and retention of cytostatics in the tumor cells. pH- and temperature-sensitive polymeric micelles developed show high entrapment efficiency for both cytostatics and eugenol (EG) >60% and release the drug in a prolonged manner for 40 h in a weakly acidic medium corresponding to the microenvironment of tumors. In a slightly alkaline environment, the drug circulates longer (more than 60 h). The thermal sensitivity of micelles is realized due to an increase in the molecular mobility of chitosan, which undergoes a phase transition at 32-37 °C. The effect of the cytostatic drug doxorubicin (Dox) on cancerous A549 cells and model healthy cells of human embryonic renal epithelium (HEK293T) was studied by FTIR spectroscopy and fluorescence microscopy. Micellar Dox penetrates into cancer cells 2-3 times more efficiently when using EG adjuvant, which inhibits efflux, as demonstrated by a significant increase in the ratio of intra- and extracellular concentrations of the cytostatic. However, here it is worth remembering about healthy cells that they should not be damaged: according to changes in the FTIR and fluorescence spectra, the penetration of Dox into HEK293T when using micelles in combination with EG is reduced by 20-30% compared to a simple cytostatic. Thus, experimental developments of combined micellar cytostatic drugs have been proposed to increase the effectiveness of cancer treatment and overcome multiple drug resistance.
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Affiliation(s)
- Igor D Zlotnikov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Dmitriy A Streltsov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Alexander A Ezhov
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1/2, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
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7
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Yamashita Y, Ohzuno Y, Saito Y, Fujiwara Y, Yoshida M, Takei T. Autoclaving-Triggered Hydrogelation of Chitosan-Gluconic acid Conjugate Aqueous Solution for Wound Healing. Gels 2023; 9:gels9040280. [PMID: 37102892 PMCID: PMC10137746 DOI: 10.3390/gels9040280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Moist wound healing is known to heal wounds faster than dry wound healing. Hydrogel wound dressings are suitable for moist wound healing because of their hyperhydrous structure. Chitosan, a natural polymer, promotes wound healing by stimulating inflammatory cells and releasing bioactive compounds. Therefore, chitosan hydrogel has great potential as a wound dressing. In our previous study, physically crosslinked chitosan hydrogels were successfully prepared solely by freeze-thawing of chitosan-gluconic acid conjugate (CG) aqueous solution without using any toxic additives. Furthermore, the CG hydrogels could be sterilized by autoclaving (steam sterilization). In this study, we showed that autoclaving (121 °C, 20 min) of a CG aqueous solution simultaneously achieved gelation of the solution and sterilization of the hydrogel. Hydrogelation of CG aqueous solution by autoclaving is also physically crosslinking without any toxic additives. Further, we showed that the CG hydrogels retained favorable biological properties of the CG hydrogels prepared by freeze-thawing and subsequent autoclaving. These results indicated that CG hydrogels prepared by autoclaving were promising as wound dressings.
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8
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Teshima R, Osawa S, Kawano Y, Hanawa T, Kikuchi A, Otsuka H. Physicochemical Properties of Egg-Box-Mediated Hydrogels with Transiently Decreased pH Employing Carbonated Water. ACS OMEGA 2023; 8:7800-7807. [PMID: 36872983 PMCID: PMC9979317 DOI: 10.1021/acsomega.2c07552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Anionic polysaccharides, including low-methoxy (LM) pectin, are extensively used in biomaterial applications owing to their safety, biocompatibility, and feasibility in constructing supramolecular assemblies by forming egg-box structures with divalent cations. Mixing an LM pectin solution with CaCO3 spontaneously forms a hydrogel. The gelation behavior can be controlled by adding an acidic compound to change the solubility of CaCO3. CO2 is used as the acidic agent and can be easily removed after gelation, thereby reducing the acidity of the final hydrogel. However, CO2 addition has been controlled under varied thermodynamical conditions; therefore, specific CO2 effects on gelation are not necessarily visualized. To evaluate the CO2 impact on the final hydrogel, which would be extended to control hydrogel properties further, we utilized carbonated water to supply CO2 into the gelation mixture without changing its thermodynamic conditions. The addition of the carbonated water accelerated gelation and significantly increased the mechanical strength, promoting cross-linking. However, the CO2 volatilized into the atmosphere, and the final hydrogel became more alkaline than that without the carbonated water, probably because a considerable amount of the carboxy group was consumed for cross-linking. Moreover, when aerogels were prepared from the hydrogels with carbonated water, they exhibited highly ordered networks of elongated porosity in scanning electron microscopy, proposing an intrinsic structural change by CO2 in the carbonated water. We also controlled the pH and strength of the final hydrogels by changing the CO2 amounts in the carbonated water added, thereby validating the significant effect of CO2 on hydrogel properties and the feasibility of using carbonated water.
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Affiliation(s)
- Ryota Teshima
- Department
of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Shigehito Osawa
- Department
of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
- Water
Frontier Research Center (WaTUS), Research Institute for Science and
Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Yayoi Kawano
- Department
of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takehisa Hanawa
- Department
of Pharmacy, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Akihiko Kikuchi
- Department
of Materials Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan
| | - Hidenori Otsuka
- Department
of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
- Department
of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
- Water
Frontier Research Center (WaTUS), Research Institute for Science and
Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
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9
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Babanejad N, Mfoafo K, Thumma A, Omidi Y, Omidian H. Advances in cryostructures and their applications in biomedical and pharmaceutical products. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04683-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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10
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Tuning Peptide-Based Hydrogels: Co-Assembly with Composites Driving the Highway to Technological Applications. Int J Mol Sci 2022; 24:ijms24010186. [PMID: 36613630 PMCID: PMC9820439 DOI: 10.3390/ijms24010186] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
Self-assembled peptide-based gels provide several advantages for technological applications. Recently, the co-assembly of gelators has been a strategy to modulate and tune gel properties and even implement stimuli-responsiveness. However, it still comprises limitations regarding the required library of compounds and outcoming properties. Hence, efforts have been made to combine peptide-based gels and (in)organic composites (e.g., magnetic nanoparticles, metal nanoparticles, liposomes, graphene, silica, clay, titanium dioxide, cadmium sulfide) to endow stimuli-responsive materials and achieve suitable properties in several fields ranging from optoelectronics to biomedical. Herein, we discuss the recent developments with composite peptide-based gels including the fabrication, tunability of gels' properties, and challenges on (bio)technological applications.
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11
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Bao X, Zhu Q, Chen Y, Tang H, Deng W, Guo H, Zeng L. Antibacterial and antioxidant films based on HA/Gr/TA fabricated using electrospinning for wound healing. Int J Pharm 2022; 626:122139. [PMID: 36055445 DOI: 10.1016/j.ijpharm.2022.122139] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/14/2022] [Accepted: 08/20/2022] [Indexed: 10/14/2022]
Abstract
Prevention of bacterial contamination, maintenance of redox balance in the environment, and acceleration of wound healing are key requirements for wound dressing. In the present study, hyaluronic acid (HA)/graphene (Gr)-electrospun fibre films loaded with polyphenolic tannic acid (TA) were prepared using electrospinning. The antioxidant activity of the films was then examined to determine whether they contained optimal TA concentrations for subsequent research. Following that, the surface morphology and physicochemical properties of the films were determined and in vitro experiments were conducted to assess their biocompatibility and antibacterial activity. Finally, the in vivo effects of the electrostatically spun fibre films on infected wound healing in mouse models were observed. The HA/Gr/TA-electrospun fibre film with 0.3% w/v TA concentration displayed the best antioxidant activity and better mechanical, water-absorption, water-retention, and degradation properties than the film without TA. In addition, it displayed superior antibacterial activity and biocompatibility, as well acceleration of infected wound healing, than the film without TA. Therefore, the HA/Gr/TA-electrospun fibre film is a promising alternative option for wound dressings.
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Affiliation(s)
- Xiang Bao
- First college of clinical medicine, Nanjing University of Chinese Medicine, Nanjing, China; Department of Proctology, Zhongda Hospital Southeast University, Nanjing, China
| | - Qianying Zhu
- Department of Pneumology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Yunyun Chen
- Department of Proctology, Zhongda Hospital Southeast University, Nanjing, China
| | - Huijuan Tang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University, Nanjing, China
| | - Weimin Deng
- Department of Andrology, Zhongda Hospital Southeast University, Nanjing, China
| | - Haixia Guo
- First college of clinical medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Li Zeng
- First college of clinical medicine, Nanjing University of Chinese Medicine, Nanjing, China.
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12
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Ji M, Li J, Wang Y, Li F, Man J, Li J, Zhang C, Peng S, Wang S. Advances in chitosan-based wound dressings: Modifications, fabrications, applications and prospects. Carbohydr Polym 2022; 297:120058. [DOI: 10.1016/j.carbpol.2022.120058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/27/2022] [Accepted: 08/27/2022] [Indexed: 12/15/2022]
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13
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Novel hydrophobically modified agarose cryogels fabricated using dimethyl sulfoxide. J Biosci Bioeng 2022; 133:390-395. [PMID: 35031212 DOI: 10.1016/j.jbiosc.2021.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 12/23/2022]
Abstract
Drug delivery systems (DDS) are devices able to adsorb therapeutic drugs in vitro before being either injected or surgically implanted into the body before releasing the drugs in vivo. Hydrogels are interesting for DDS researchers as they mimic soft tissue and can absorb large quantities of liquid. This research reported the successful fabrication of hydrophobically modified agarose (HMA) as well as the creation of a novel approach to the formation of hydrophobically modified agarose cryogels. By activating the hydroxyl groups in agarose, hydrophobic modification could occur through the bonding of the activated hydroxyl groups and the amines in fatty aldehydes. It was found that HMA was insoluble in water, and as such a new method of cryogel creation was produced using dimethyl sulfoxide. Further testing of HMA cryogels showed that cell adhesiveness and cytotoxicity were low. Adsorption tests showed that HMA cryogels had the ability to adsorb larger amounts of hydrophobic dye than unmodified agarose cryogels and that the release of the hydrophobic dye from HMA cryogels could be controlled. These results showed that the HMA cryogels made using this novel approach have the potential to be used as drug delivery systems.
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14
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Immunomodulation of Skin Repair: Cell-Based Therapeutic Strategies for Skin Replacement (A Comprehensive Review). Biomedicines 2022; 10:biomedicines10010118. [PMID: 35052797 PMCID: PMC8773777 DOI: 10.3390/biomedicines10010118] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 12/12/2022] Open
Abstract
The immune system has a crucial role in skin wound healing and the application of specific cell-laden immunomodulating biomaterials emerged as a possible treatment option to drive skin tissue regeneration. Cell-laden tissue-engineered skin substitutes have the ability to activate immune pathways, even in the absence of other immune-stimulating signals. In particular, mesenchymal stem cells with their immunomodulatory properties can create a specific immune microenvironment to reduce inflammation, scarring, and support skin regeneration. This review presents an overview of current wound care techniques including skin tissue engineering and biomaterials as a novel and promising approach. We highlight the plasticity and different roles of immune cells, in particular macrophages during various stages of skin wound healing. These aspects are pivotal to promote the regeneration of nonhealing wounds such as ulcers in diabetic patients. We believe that a better understanding of the intrinsic immunomodulatory features of stem cells in implantable skin substitutes will lead to new translational opportunities. This, in turn, will improve skin tissue engineering and regenerative medicine applications.
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15
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Mamada H, Kemmochi A, Tamura T, Shimizu Y, Owada Y, Ozawa Y, Hisakura K, Oda T, Ohkohchi N, Kawano Y, Hanawa T. Development and evaluation of novel hydrogel for preventing postoperative pancreatic fistula. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hiroshi Mamada
- Faculty of Pharmaceutical Sciences Tokyo University of Science Chiba Japan
| | - Akira Kemmochi
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Takafumi Tamura
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Yoshio Shimizu
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Yohei Owada
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Yusuke Ozawa
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Katsuji Hisakura
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Tatsuya Oda
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Nobuhiro Ohkohchi
- Department of Gastrointestinal and Hepato‐Biliary‐Pancreatic Surgery, Faculty of Medicine University of Tsukuba Tsukuba Japan
| | - Yayoi Kawano
- Faculty of Pharmaceutical Sciences Tokyo University of Science Chiba Japan
| | - Takehisa Hanawa
- Faculty of Pharmaceutical Sciences Tokyo University of Science Chiba Japan
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16
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Jones LO, Williams L, Boam T, Kalmet M, Oguike C, Hatton FL. Cryogels: recent applications in 3D-bioprinting, injectable cryogels, drug delivery, and wound healing. Beilstein J Org Chem 2021; 17:2553-2569. [PMID: 34760024 PMCID: PMC8551881 DOI: 10.3762/bjoc.17.171] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/21/2021] [Indexed: 12/19/2022] Open
Abstract
Cryogels are macroporous polymeric structures formed from the cryogelation of monomers/polymers in a solvent below freezing temperature. Due to their inherent interconnected macroporosity, ease of preparation, and biocompatibility, they are increasingly being investigated for use in biomedical applications such as 3D-bioprinting, drug delivery, wound healing, and as injectable therapeutics. This review highlights the fundamentals of macroporous cryogel preparation, cryogel properties that can be useful in the highlighted biomedical applications, followed by a comprehensive review of recent studies in these areas. Research evaluated includes the use of cryogels to combat various types of cancer, for implantation without surgical incision, and use as highly effective wound dressings. Furthermore, conclusions and outlooks are discussed for the use of these promising and durable macroporous cryogels.
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Affiliation(s)
- Luke O Jones
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
| | - Leah Williams
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
| | - Tasmin Boam
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
| | - Martin Kalmet
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
| | - Chidubem Oguike
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
| | - Fiona L Hatton
- Department of Materials, Loughborough University, Loughborough, LE11 3TU, UK
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17
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Kharaziha M, Baidya A, Annabi N. Rational Design of Immunomodulatory Hydrogels for Chronic Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100176. [PMID: 34251690 PMCID: PMC8489436 DOI: 10.1002/adma.202100176] [Citation(s) in RCA: 217] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/03/2021] [Indexed: 05/03/2023]
Abstract
With all the advances in tissue engineering for construction of fully functional skin tissue, complete regeneration of chronic wounds is still challenging. Since immune reaction to the tissue damage is critical in regulating both the quality and duration of chronic wound healing cascade, strategies to modulate the immune system are of importance. Generally, in response to an injury, macrophages switch from pro-inflammatory to an anti-inflammatory phenotype. Therefore, controlling macrophages' polarization has become an appealing approach in regenerative medicine. Recently, hydrogels-based constructs, incorporated with various cellular and molecular signals, have been developed and utilized to adjust immune cell functions in various stages of wound healing. Here, the current state of knowledge on immune cell functions during skin tissue regeneration is first discussed. Recent advanced technologies used to design immunomodulatory hydrogels for controlling macrophages' polarization are then summarized. Rational design of hydrogels for providing controlled immune stimulation via hydrogel chemistry and surface modification, as well as incorporation of cell and molecules, are also dicussed. In addition, the effects of hydrogels' properties on immunogenic features and the wound healing process are summarized. Finally, future directions and upcoming research strategies to control immune responses during chronic wound healing are highlighted.
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Affiliation(s)
- Mahshid Kharaziha
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Avijit Baidya
- Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, CA, 90095, USA
| | - Nasim Annabi
- Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, CA, 90095, USA
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18
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Savina IN, Zoughaib M, Yergeshov AA. Design and Assessment of Biodegradable Macroporous Cryogels as Advanced Tissue Engineering and Drug Carrying Materials. Gels 2021; 7:79. [PMID: 34203439 PMCID: PMC8293244 DOI: 10.3390/gels7030079] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 12/13/2022] Open
Abstract
Cryogels obtained by the cryotropic gelation process are macroporous hydrogels with a well-developed system of interconnected pores and shape memory. There have been significant recent advancements in our understanding of the cryotropic gelation process, and in the relationship between components, their structure and the application of the cryogels obtained. As cryogels are one of the most promising hydrogel-based biomaterials, and this field has been advancing rapidly, this review focuses on the design of biodegradable cryogels as advanced biomaterials for drug delivery and tissue engineering. The selection of a biodegradable polymer is key to the development of modern biomaterials that mimic the biological environment and the properties of artificial tissue, and are at the same time capable of being safely degraded/metabolized without any side effects. The range of biodegradable polymers utilized for cryogel formation is overviewed, including biopolymers, synthetic polymers, polymer blends, and composites. The paper discusses a cryotropic gelation method as a tool for synthesis of hydrogel materials with large, interconnected pores and mechanical, physical, chemical and biological properties, adapted for targeted biomedical applications. The effect of the composition, cross-linker, freezing conditions, and the nature of the polymer on the morphology, mechanical properties and biodegradation of cryogels is discussed. The biodegradation of cryogels and its dependence on their production and composition is overviewed. Selected representative biomedical applications demonstrate how cryogel-based materials have been used in drug delivery, tissue engineering, regenerative medicine, cancer research, and sensing.
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Affiliation(s)
- Irina N. Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton BN2 4GJ, UK
| | - Mohamed Zoughaib
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (M.Z.); (A.A.Y.)
| | - Abdulla A. Yergeshov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (M.Z.); (A.A.Y.)
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19
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Hezarkhani M, Ustürk S, Özbilenler C, Yilmaz E. Pullulan/poly(
N‐vinylimidazole
) cryogel: An efficient adsorbent for methyl orange. J Appl Polym Sci 2021. [DOI: 10.1002/app.50958] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marjan Hezarkhani
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Famagusta Turkey
- Sabanci University Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence İstanbul Turkey
| | - Selma Ustürk
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Famagusta Turkey
| | - Cahit Özbilenler
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Famagusta Turkey
| | - Elvan Yilmaz
- Department of Chemistry, Faculty of Arts and Sciences Eastern Mediterranean University Famagusta Turkey
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20
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Evans C, Morimitsu Y, Hisadome T, Inomoto F, Yoshida M, Takei T. Optimized hydrophobically modified chitosan cryogels for strength and drug delivery systems. J Biosci Bioeng 2021; 132:81-87. [PMID: 33853755 DOI: 10.1016/j.jbiosc.2021.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/01/2023]
Abstract
This research reports the success of the fabrication of hydrophobically modified chitosan cryogel. Chitosan was modified with alkyl groups through reductive animation. By varying the alkyl chain length and the substitution degree, the resulting cryogel could be optimized for strength, and the adsorption and release of hydrophobic dye, a model for hydrophobic medicines. By optimizing these attributes, the hydrogel was found to have the potential as a biomedical material.
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Affiliation(s)
- Courtney Evans
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Yuto Morimitsu
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Tsubasa Hisadome
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Futo Inomoto
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
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21
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Bonalumi F, Crua C, Savina IN, Davies N, Habstesion A, Santini M, Fest-Santini S, Sandeman S. Bioengineering a cryogel-derived bioartificial liver using particle image velocimetry defined fluid dynamics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111983. [PMID: 33812611 DOI: 10.1016/j.msec.2021.111983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/31/2021] [Accepted: 02/17/2021] [Indexed: 02/06/2023]
Abstract
Bioartificial Liver (BAL) devices are extracorporeal systems designed to support or recover hepatic function in patients with liver failure. The design of an effective BAL remains an open challenge since it requires a complex co-optimisation of cell colonisation, biomaterial scaffold and BAL fluid dynamics. Building on previous evidence of suitability as a blood perfusion device for detoxification, the current study investigated the use of RGD-containing p(HEMA)-alginate cryogels as BAL scaffolds. Cryogels were modified with alginate to reduce protein fouling and functionalised with an RGD-containing peptide to increase hepatocyte adhesion. A novel approach for characterisation of the internal flow through the porous matrix was developed by employing Particle Image Velocimetry (PIV) to visualise flow inside cryogels. Based on PIV results, which showed the laminar nature of flow inside cryogel pores, a multi-layered bioreactor composed of spaced cryogel discs was designed to improve blood/hepatocyte mass exchange. The stacked bioreactor showed a significantly higher production of albumin and urea compared to the column version, with improved cell colonisation and proliferation over time. The cell-free cryogel-based device was tested for safety in a bile-duct ligation model of liver cirrhosis. Thus, a stacked bioreactor prototype was developed based on a surface-engineered cryogel design with optimised fluid dynamics for BAL use.
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Affiliation(s)
- Flavia Bonalumi
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
| | - Cyril Crua
- Advanced Engineering Centre, University of Brighton, Brighton, United Kingdom
| | - Irina N Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
| | - Nathan Davies
- The Institute for Liver and Digestive Health, University College London, London, United Kingdom
| | - Abeba Habstesion
- The Institute for Liver and Digestive Health, University College London, London, United Kingdom
| | - Maurizio Santini
- Department of Engineering and Applied Sciences, University of Bergamo, Bergamo, Italy
| | - Stephanie Fest-Santini
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Susan Sandeman
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom.
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22
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Alzanbaki H, Moretti M, Hauser CAE. Engineered Microgels-Their Manufacturing and Biomedical Applications. MICROMACHINES 2021; 12:45. [PMID: 33401474 PMCID: PMC7824414 DOI: 10.3390/mi12010045] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/24/2020] [Accepted: 12/24/2020] [Indexed: 12/15/2022]
Abstract
Microgels are hydrogel particles with diameters in the micrometer scale that can be fabricated in different shapes and sizes. Microgels are increasingly used for biomedical applications and for biofabrication due to their interesting features, such as injectability, modularity, porosity and tunability in respect to size, shape and mechanical properties. Fabrication methods of microgels are divided into two categories, following a top-down or bottom-up approach. Each approach has its own advantages and disadvantages and requires certain sets of materials and equipments. In this review, we discuss fabrication methods of both top-down and bottom-up approaches and point to their advantages as well as their limitations, with more focus on the bottom-up approaches. In addition, the use of microgels for a variety of biomedical applications will be discussed, including microgels for the delivery of therapeutic agents and microgels as cell carriers for the fabrication of 3D bioprinted cell-laden constructs. Microgels made from well-defined synthetic materials with a focus on rationally designed ultrashort peptides are also discussed, because they have been demonstrated to serve as an attractive alternative to much less defined naturally derived materials. Here, we will emphasize the potential and properties of ultrashort self-assembling peptides related to microgels.
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Affiliation(s)
| | | | - Charlotte A. E. Hauser
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, 4700 Thuwal, Jeddah 23955-6900, Saudi Arabia; (H.A.); (M.M.)
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23
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Fernandes CSM, Pina AS, Roque ACA. Affinity-triggered hydrogels: Developments and prospects in biomaterials science. Biomaterials 2020; 268:120563. [PMID: 33276200 DOI: 10.1016/j.biomaterials.2020.120563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Cláudia S M Fernandes
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal
| | - Ana Sofia Pina
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal
| | - Ana Cecília A Roque
- UCIBIO, Chemistry Department, School of Science and Technology, NOVA University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal.
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24
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Pourshahrestani S, Zeimaran E, Kadri NA, Mutlu N, Boccaccini AR. Polymeric Hydrogel Systems as Emerging Biomaterial Platforms to Enable Hemostasis and Wound Healing. Adv Healthc Mater 2020; 9:e2000905. [PMID: 32940025 DOI: 10.1002/adhm.202000905] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/09/2020] [Indexed: 12/11/2022]
Abstract
Broad interest in developing new hemostatic technologies arises from unmet needs in mitigating uncontrolled hemorrhage in emergency, surgical, and battlefield settings. Although a variety of hemostats, sealants, and adhesives are available, development of ideal hemostatic compositions that offer a range of remarkable properties including capability to effectively and immediately manage bleeding, excellent mechanical properties, biocompatibility, biodegradability, antibacterial effect, and strong tissue adhesion properties, under wet and dynamic conditions, still remains a challenge. Benefiting from tunable mechanical properties, high porosity, biocompatibility, injectability and ease of handling, polymeric hydrogels with outstanding hemostatic properties have been receiving increasing attention over the past several years. In this review, after shedding light on hemostasis and wound healing processes, the most recent progresses in hydrogel systems engineered from natural and synthetic polymers for hemostatic applications are discussed based on a comprehensive literature review. Most studies described used in vivo models with accessible and compressible wounds to assess the hemostatic performance of hydrogels. The challenges that need to be tackled to accelerate the translation of these novel hemostatic hydrogel systems to clinical practice are emphasized and future directions for research in the field are presented.
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Affiliation(s)
- Sara Pourshahrestani
- Department of Biomedical Engineering Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | - Ehsan Zeimaran
- Department of Biomedical Engineering Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | - Nahrizul Adib Kadri
- Department of Biomedical Engineering Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | - Nurshen Mutlu
- FunGlass – Centre for Functional and Surface Functionalized Glass Alexander Dubcek University of Trencin Trencin 911 50 Slovakia
| | - Aldo R. Boccaccini
- Institute of Biomaterials Department of Materials Science and Engineering University of Erlangen‐Nuremberg Erlangen 91058 Germany
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25
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Zaitseva O, Khudyakov A, Sergushkina M, Solomina O, Polezhaeva T. Pectins as a universal medicine. Fitoterapia 2020; 146:104676. [DOI: 10.1016/j.fitote.2020.104676] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/19/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023]
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26
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Zhang S, Li J, Li J, Du N, Li D, Li F, Man J. Application status and technical analysis of chitosan-based medical dressings: a review. RSC Adv 2020; 10:34308-34322. [PMID: 35519038 PMCID: PMC9056765 DOI: 10.1039/d0ra05692h] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/10/2020] [Indexed: 12/19/2022] Open
Abstract
Chitosan has wide applications in the field of medical dressings due to its good biomedical properties. This review provides the application status and technical analysis of chitosan medical dressings. First, we introduce the source and chemical structure of chitosan. Then, we investigate the mechanism of chitosan showing different medical properties. We also show the application of supramolecular chitosan-based hydrogels in the dressing field and the formulation optimization and the preparation technology of chitosan dressings for fabricating chitosan-based dressings with various morphologies and medical functions. After that, we introduce the research process of the modification method of chitosan dressings including single modification, blending modification, crosslinking modification, etc. Finally, based on the study of the medical effects of chitosan dressings, we analyze the existing problems in the preparation process and propose corresponding solutions from the aspects of the morphology, clinical feedback effect, and future development trends. This paper can provide a reference for further studies of skin tissue engineering and the development of new chitosan medical dressings. Chitosan has wide applications in the field of medical dressings due to its good biomedical properties.![]()
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Affiliation(s)
- Shanguo Zhang
- School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education) Shandong University Jinan 250061 China .,National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University) Jinan 250061 China
| | - Jianyong Li
- School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education) Shandong University Jinan 250061 China .,National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University) Jinan 250061 China
| | - Jianfeng Li
- School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education) Shandong University Jinan 250061 China .,National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University) Jinan 250061 China
| | - Na Du
- Department of Geriatrics, Second Affiliated Hospital of Shandong University Jinan 250033 China
| | - Donghai Li
- Advanced Medical Research Institute, Shandong University Jinan 250012 China
| | - Fangyi Li
- School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education) Shandong University Jinan 250061 China .,National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University) Jinan 250061 China
| | - Jia Man
- School of Mechanical Engineering, Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education) Shandong University Jinan 250061 China .,National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University) Jinan 250061 China
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27
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Nie L, Deng Y, Li P, Hou R, Shavandi A, Yang S. Hydroxyethyl Chitosan-Reinforced Polyvinyl Alcohol/Biphasic Calcium Phosphate Hydrogels for Bone Regeneration. ACS OMEGA 2020; 5:10948-10957. [PMID: 32455215 PMCID: PMC7241017 DOI: 10.1021/acsomega.0c00727] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/24/2020] [Indexed: 06/07/2023]
Abstract
Fabrication of reinforced scaffolds for bone regeneration remains a significant challenge. The weak mechanical properties of the chitosan (CS)-based composite scaffold hindered its further application in clinic. Here, to obtain hydroxyethyl CS (HECS), some hydrogen bonds of CS were replaced by hydroxyethyl groups. Then, HECS-reinforced polyvinyl alcohol (PVA)/biphasic calcium phosphate (BCP) nanoparticle hydrogel was fabricated via cycled freeze-thawing followed by an in vitro biomineralization treatment using a cell culture medium. The synthesized hydrogel had an interconnected porous structure with a uniform pore distribution. Compared to the CS/PVA/BCP hydrogel, the HECS/PVA/BCP hydrogels showed a thicker pore wall and had a compressive strength of up to 5-7 MPa. The biomineralized hydrogel possessed a better compressive strength and cytocompatibility compared to the untreated hydrogel, confirmed by CCK-8 analysis and fluorescence images. The modification of CS with hydroxyethyl groups and in vitro biomineralization were sufficient to improve the mechanical properties of the scaffold, and the HECS-reinforced PVA/BCP hydrogel was promising for bone tissue engineering applications.
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Affiliation(s)
- Lei Nie
- College
of Life Sciences, Xinyang Normal University, Xinyang 464000, China
- Department
of Mechanical Engineering, Member of Flanders Make, KU Leuven (Catholic University of Leuven), Leuven 3001, Belgium
| | - Yaling Deng
- College
of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Pei Li
- College
of Life Sciences, Xinyang Normal University, Xinyang 464000, China
- Key
Laboratory of Molecular Biophysics of the Ministry of Education, College
of Life Science & Technology, Huazhong
University of Science and Technology, Wuhan 430074, China
| | - Ruixia Hou
- Medical
School of Ningbo University, Ningbo 315211, P. R. China
| | - Amin Shavandi
- BioMatter
Unit—École Polytechnique de Bruxelles, Université Libre de Bruxelles, Avenue F.D. Roosevelt, 50-CP 165/61, Brussels 1050, Belgium
| | - Shoufeng Yang
- Department
of Mechanical Engineering, Member of Flanders Make, KU Leuven (Catholic University of Leuven), Leuven 3001, Belgium
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28
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Aisida SO, Akpa PA, Ahmad I, Zhao TK, Maaza M, Ezema FI. Bio-inspired encapsulation and functionalization of iron oxide nanoparticles for biomedical applications. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109371] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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29
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Fukuhara Y, Takei T, Yoshinaga T, Nishimata H, Yoshida M. Injectable Sugar Beet Pectin/Chitosan Derivative Composite Hydrogel for Wound Care. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2019. [DOI: 10.1252/jcej.19we102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoshiki Fukuhara
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | | | | | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
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30
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Seow WY, Kandasamy K, Purnamawati K, Sun W, Hauser CA. Thin peptide hydrogel membranes suitable as scaffolds for engineering layered biostructures. Acta Biomater 2019; 88:293-300. [PMID: 30721784 DOI: 10.1016/j.actbio.2019.02.001] [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: 07/16/2018] [Revised: 01/19/2019] [Accepted: 02/01/2019] [Indexed: 02/06/2023]
Abstract
A short tetramer peptide, Ac-IVKC, spontaneously formed a hydrogel in water. Disulfide bonds were introduced via hydrogen peroxide (H2O2)-assisted oxidation, resulting in (Ac-IVKC)2 dimers. The extent of disulfide bond formation and gel stiffness increased with the amount of H2O2 used and 100% dimerization was achieved with 0.2% H2O2. The resultant gel achieved an elastic modulus of ∼0.9 MPa, which to our knowledge, has not been reported for peptide-based hydrogels. The enhanced mechanical property enabled the fabrication of thin and transparent membranes. The hydrogel could also be handled with forceps at mm thickness, greatly increasing its ease of physical manipulation. Excess H2O2 was removed and the membrane was then infused with cell culture media. Various cells, including primary human corneal stromal and epithelial cells, were seeded onto the hydrogel membrane and demonstrated to remain viable. Depending on the intended application, specific cell combination or membrane stacking order could be used to engineer layered biostructures. STATEMENT OF SIGNIFICANCE: A short tetramer peptide - Ac-IVKC - spontaneously formed a hydrogel in water and disulfide bonds were introduced via hydrogen peroxide (H2O2)-assisted oxidation. The extent of disulfide-bond formation and gel stiffness were modulated by the amount of H2O2. At maximum disulfide-bond formation, the hydrogel achieved an elastic modulus of ∼0.9 MPa, which to our knowledge, has not been reported for peptide-based hydrogels. The enhanced mechanical property enabled the fabrication of thin transparent membranes that can be physically manipulated at mm thickness. The gels also supported 3D cell growth, including primary human corneal stromal and epithelial cells. Depending on the intended application, specific combination of cells or individual membrane stacking order could be used to engineer layered biostructures.
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Chen H, Li B, Feng B, Wang H, Yuan H, Xu Z. Tetracycline hydrochloride loaded citric acid functionalized chitosan hydrogel for wound healing. RSC Adv 2019; 9:19523-19530. [PMID: 35519405 PMCID: PMC9065375 DOI: 10.1039/c9ra02628b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/17/2019] [Indexed: 11/21/2022] Open
Abstract
Citric modified chitosan (CC) hydrogel containing antibacterial drugs is developed by the freezing and thawing treatment method. The SEM image of the CC hydrogel revealed a porous structure. The rheological properties, porosity, swelling rate, water uptake, tensile properties and in vitro degradation were found to be tunable via CC concentration. To enhance antibacterial properties, tetracycline hydrochloride (TH) representing the drug model, was integrated into the CC hydrogel. The cumulative release of drug was also tunable via CC concentration. The drug loaded CC hydrogel showed enhanced antimicrobial activity against E. coli and S. aureus. In animal tests, it was found the TH loaded CC hydrogel accelerated the healing of the wounds created on rats. These results suggest that the drug loaded CC hydrogel has a promising future in wound healing as a wound dressing. Citric modified chitosan (CC) hydrogel containing antibacterial drug for wound healing applications.![]()
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Affiliation(s)
- Hao Chen
- Department of Cardiothoracic Surgery
- Shanghai Children's Medical Center
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200127
| | - Biyun Li
- School of Life Sciences
- Nantong University
- Nantong
- China
| | - Bei Feng
- Shanghai Pediatric Congenital Heart Disease Institute
- Shanghai Children's Medical Center
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200127
| | - Hao Wang
- Department of Cardiothoracic Surgery
- Shanghai Children's Medical Center
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200127
| | - Huihua Yuan
- School of Life Sciences
- Nantong University
- Nantong
- China
| | - Zhiwei Xu
- Department of Cardiothoracic Surgery
- Shanghai Children's Medical Center
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200127
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Lu JW, Miao Y, Guo CX, Ke QF, Yin JH, Zhou SM, Guo YP. Lanthanum-Doped Chitosan Hydrogels Promote the Apoptosis of Melanoma Cells by Bcl-2/Bax Pathway. ACS APPLIED BIO MATERIALS 2018; 1:1468-1477. [DOI: 10.1021/acsabm.8b00417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Wei Lu
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | | | - Cui-Xiang Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Qin-Fei Ke
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | | | | | - Ya-Ping Guo
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
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A.V. T, Dinda AK, Koul V. Evaluation of nano hydrogel composite based on gelatin/HA/CS suffused with Asiatic acid/ZnO and CuO nanoparticles for second degree burns. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:378-386. [DOI: 10.1016/j.msec.2018.03.034] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 03/16/2018] [Accepted: 03/30/2018] [Indexed: 11/26/2022]
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Bio-inspired redox-cycling antimicrobial film for sustained generation of reactive oxygen species. Biomaterials 2018; 162:109-122. [DOI: 10.1016/j.biomaterials.2017.12.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 12/20/2017] [Accepted: 12/31/2017] [Indexed: 02/07/2023]
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Liu H, Wang C, Li C, Qin Y, Wang Z, Yang F, Li Z, Wang J. A functional chitosan-based hydrogel as a wound dressing and drug delivery system in the treatment of wound healing. RSC Adv 2018; 8:7533-7549. [PMID: 35539132 PMCID: PMC9078458 DOI: 10.1039/c7ra13510f] [Citation(s) in RCA: 433] [Impact Index Per Article: 72.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/12/2018] [Indexed: 12/18/2022] Open
Abstract
Functional active wound dressings are expected to provide a moist wound environment, offer protection from secondary infections, remove wound exudate and accelerate tissue regeneration, as well as to improve the efficiency of wound healing. Chitosan-based hydrogels are considered as ideal materials for enhancing wound healing owing to their biodegradable, biocompatible, non-toxic, antimicrobial, biologically adhesive, biological activity and hemostatic effects. Chitosan-based hydrogels have been demonstrated to promote wound healing at different wound healing stages, and also can alleviate the factors against wound healing (such as excessive inflammatory and chronic wound infection). The unique biological properties of a chitosan-based hydrogel enable it to serve as both a wound dressing and as a drug delivery system (DDS) to deliver antibacterial agents, growth factors, stem cells and so on, which could further accelerate wound healing. For various kinds of wounds, chitosan-based hydrogels are able to promote the effectiveness of wound healing by modifying or combining with other polymers, and carrying different types of active substances. In this review, we will take a close look at the application of chitosan-based hydrogels in wound dressings and DDS to enhance wound healing.
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Affiliation(s)
- He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Chenyu Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
- Hallym University 1Hallymdaehak-gil Chuncheon Gangwon-do 200-702 Korea
| | - Chen Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Yanguo Qin
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Zhonghan Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Fan Yang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Zuhao Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Jincheng Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
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In vivo evaluation of bacterial cellulose/acrylic acid wound dressing hydrogel containing keratinocytes and fibroblasts for burn wounds. Drug Deliv Transl Res 2018; 9:444-452. [DOI: 10.1007/s13346-017-0475-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhu C, Zou S, Rao Z, Min L, Liu M, Liu L, Fan L. Preparation and characterization of hydroxypropyl chitosan modified with nisin. Int J Biol Macromol 2017; 105:1017-1024. [DOI: 10.1016/j.ijbiomac.2017.07.136] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/23/2017] [Accepted: 07/15/2017] [Indexed: 12/13/2022]
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Takei T, Danjo S, Sakoguchi S, Tanaka S, Yoshinaga T, Nishimata H, Yoshida M. Autoclavable physically-crosslinked chitosan cryogel as a wound dressing. J Biosci Bioeng 2017; 125:490-495. [PMID: 29167067 DOI: 10.1016/j.jbiosc.2017.10.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/09/2017] [Accepted: 10/25/2017] [Indexed: 02/01/2023]
Abstract
Moist wounds were known to heal more rapidly than dry wounds. Hydrogel wound dressings were suitable for the moist wound healing because of their hyperhydrous structure. Chitosan was a strong candidate as a base material for hydrogel wound dressings because the polymer had excellent biological properties that promoted wound healing. We previously developed physically-crosslinked chitosan cryogels, which were prepared solely by freeze-thawing of a chitosan-gluconic acid conjugate (CG) aqueous solution, for wound treatment. The CG cryogels were disinfected by immersing in 70% ethanol before applying to wounds in our previous study. In the present study, we examined the influence of autoclave sterilization (121°C, 20 min) on the characteristics of CG cryogel because complete sterilization was one of the fundamental requirements for medical devices. We found that optimum value of gluconic acid content of CG, defined as the number of the incorporated gluconic acid units per 100 glucosamine units of chitosan, was 11 for autoclaving. An increased crosslinking level of CG cryogel on autoclaving enhanced resistance of the gels to enzymatic degradation. Furthermore, the autoclaved CG cryogels retained favorable biological properties of the pre-autoclaved CG cryogels in that they showed the same hemostatic activity and efficacy in repairing full-thickness skin wounds as the pre-autoclaved CG cryogels. These results showed the great potential of autoclavable CG cryogels as a practical wound dressing.
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Affiliation(s)
- Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - So Danjo
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Shogo Sakoguchi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Sadao Tanaka
- Departent of Diagnostic Pathology, Nanpuh Hospital, 14-3 Nagata-cho, Kagoshima 891-8512, Japan.
| | - Takuma Yoshinaga
- Division of Clinical Application, Nanpuh Hospital, 14-3 Nagata-cho, Kagoshima 891-8512, Japan.
| | - Hiroto Nishimata
- Departent of Diagnostic Pathology, Nanpuh Hospital, 14-3 Nagata-cho, Kagoshima 891-8512, Japan.
| | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
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Hattori H, Tsujimoto H, Hase K, Ishihara M. Characterization of a water-soluble chitosan derivative and its potential for submucosal injection in endoscopic techniques. Carbohydr Polym 2017; 175:592-600. [DOI: 10.1016/j.carbpol.2017.08.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/31/2017] [Accepted: 08/07/2017] [Indexed: 12/21/2022]
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Hixon KR, Lu T, Sell SA. A comprehensive review of cryogels and their roles in tissue engineering applications. Acta Biomater 2017; 62:29-41. [PMID: 28851666 DOI: 10.1016/j.actbio.2017.08.033] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/01/2017] [Accepted: 08/25/2017] [Indexed: 02/08/2023]
Abstract
The extracellular matrix is fundamental in providing an appropriate environment for cell interaction and signaling to occur. Replicating such a matrix is advantageous in the support of tissue ingrowth and regeneration through the field of tissue engineering. While scaffolds can be fabricated in many ways, cryogels have recently become a popular approach due to their macroporous structure and durability. Produced through the crosslinking of gel precursors followed by a subsequent controlled freeze/thaw cycle, the resulting cryogel provides a unique, sponge-like structure. Therefore, cryogels have proven advantageous for many tissue engineering applications including roles in bioreactor systems, cell separation, and scaffolding. Specifically, the matrix has been demonstrated to encourage the production of various molecules, such as antibodies, and has also been used for cryopreservation. Cryogels can pose as a bioreactor for the expansion of cell lines, as well as a vehicle for cell separation. Lastly, this matrix has shown excellent potential as a tissue engineered scaffold, encouraging regrowth at numerous damaged tissue sites in vivo. This review will briefly discuss the fabrication of cryogels, with an emphasis placed on their application in various facets of tissue engineering to provide an overview of this unique scaffold's past and future roles. STATEMENT OF SIGNIFICANCE Cryogels are unique scaffolds produced through the controlled freezing and thawing of a polymer solution. There is an ever-growing body of literature that demonstrates their applicability in the realm of tissue engineering as extracellular matrix analogue scaffolds; with extensive information having been provided regarding the fabrication, porosity, and mechanical integrity of the scaffolds. Additionally, cryogels have been reviewed with respect to their role in bioseparation and as cellular incubators. This all-inclusive view of the roles that cryogels can play is critical to advancing the technology and expanding its niche within biomaterials and tissue engineering research. To the best of the authors' knowledge, this is the first comprehensive review of cryogel applications in tissue engineering that includes specific looks at their growing roles as extracellular matrix analogues, incubators, and in bioseparation processes.
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Kato A, Kan K, Ajiro H, Akashi M. Development of a rapid in vitro tissue deadhesion system using the thermoresponsive sol-gel transition of hydroxybutyl chitosan. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:958-973. [PMID: 28277005 DOI: 10.1080/09205063.2017.1292988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In regenerative medicine, it has become increasingly important to collect cultured tissues using non-invasive methods. Enzymatic deadhesion is normally used to collect cells, but this method cannot be used when trying to collect whole tissues in order to avoid damaging cell-cell interactions. In order to resolve this issue, a thermoresponsive culture dish with poly(N-isopropyl acrylamide) (PNIPAAm) has been employed. This system can change its hydrophobicity depending on temperature. Thus, tissues can attach above 37 °C and be detached below 20 °C. However, the PNIPAAm system has some issues related to cost and detachment time. In this study, we developed a novel thermoresponsive detachment system using a polysaccharide derivative. We chose hydroxy butyl chitosan (HBC) as the thermoresponsive polymer because of its high biocompatibility and rapid phase transition. We developed a novel method of HBC synthesis in conditions that were milder than previously reported. We used spin-coating to make a thin coating on two kinds of culture dishes with various concentrations of HBC solution. Seeded cells attached to the surface at less than 0.5 mg/ml HBC coating concentration, and they could be successfully detached by simply lowering the temperature of the suspension dishes without enzymatic treatment; the cells took only 5-20 min to detach. To evaluate this system, we measured three metrics related to cell culturing on culture dishes: initial attachment rate, detachment rate and tissue detachment time. The study revealed that tissues could be detached faster on the suspension dishes used in this study than on PNIPAAm grafted dishes when HBC was coated at 0.5 mg/ml. We successfully developed a novel tissue detachment system using HBC. These results suggest that smart polymers may be useful in regenerative medicine.
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Affiliation(s)
- Asuka Kato
- a Department of Frontier Biosciences , Graduate School of Frontier Biosciences, Osaka University , Osaka , Japan.,b Technical Research Institute , Toppan Printing Co., LTD. , Saitama , Japan
| | - Kai Kan
- c Graduate School of Materials Science, Nara Institute of Science and Technology , Nara , Japan
| | - Hiroharu Ajiro
- c Graduate School of Materials Science, Nara Institute of Science and Technology , Nara , Japan.,d Institute for Research Initiatives, Nara Institute of Science and Technology , Nara , Japan.,e JST PRESTO , Saitama , Japan
| | - Mitsuru Akashi
- a Department of Frontier Biosciences , Graduate School of Frontier Biosciences, Osaka University , Osaka , Japan
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Takei T, Yoshitomi H, Fukumoto K, Danjo S, Yoshinaga T, Nishimata H, Yoshida M. Toxic Chemical Cross-linker-free Cryosponges Made from Chitosan-Gluconic Acid Conjugate for Chondrocyte Culture. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2017. [DOI: 10.1252/jcej.16we145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - Hiroki Yoshitomi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - Kohei Fukumoto
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - So Danjo
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | | | | | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
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43
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Takei T, Fukumoto K, Danjo S, Yoshinaga T, Nishimata H, Yoshida M. In Vitro and in Vivo Characterization of Hydroxyapatite/Chitosan-Gluconic Acid Conjugate Scaffolds. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2017. [DOI: 10.1252/jcej.16we202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takayuki Takei
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - Kohei Fukumoto
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | - So Danjo
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
| | | | | | - Masahiro Yoshida
- Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University
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Konovalova MV, Markov PA, Durnev EA, Kurek DV, Popov SV, Varlamov VP. Preparation and biocompatibility evaluation of pectin and chitosan cryogels for biomedical application. J Biomed Mater Res A 2016; 105:547-556. [PMID: 27750379 DOI: 10.1002/jbm.a.35936] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 12/25/2022]
Abstract
Today, there is a need for the development of biomaterials with novel properties for biomedical purposes. The biocompatibility of materials is a key factor in determining its possible use in biomedicine. In this study, composite cryogels were obtained based on pectin and chitosan using ionic cryotropic gelation. For cryogel preparation, apple pectin (AP), Heracleum L. pectin (HP), and chitosan samples with different physical and chemical characteristics were used. The properties of pectin-chitosan cryogels were found to depend on the structural features and physicochemical characteristics of the pectin and chitosan within them. The addition of chitosan to cryogels can increase their mechanical strength, cause change in surface morphology, increase the degradation time, and enhance adhesion to biological tissues. Cryogels based on AP were less immunogenic when compared with cryogels from HP. Cryogels based on AP and HP were hemocompatible and the percentage of red blood cells hemolysis was less than 5%. Unlike cryogels based on HP, which exhibited moderate cytotoxicity, cryogels based on AP exhibited light cytotoxicity. Based on the results of low immunogenicity, light cytotoxicity data as well as a low level of hemolysis of composite cryogels based on AP and chitosan are biocompatible and can potentially be used in biomedicine. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 547-556, 2017.
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Affiliation(s)
- Mariya V Konovalova
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Pavel A Markov
- Institute of Physiology, Komi Science Centre, The Urals Branch of the Russian Academy of Sciences, Syktyvkar, Russia
| | | | - Denis V Kurek
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Popov
- Institute of Physiology, Komi Science Centre, The Urals Branch of the Russian Academy of Sciences, Syktyvkar, Russia
| | - Valery P Varlamov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
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Li M, Ke QF, Tao SC, Guo SC, Rui BY, Guo YP. Fabrication of hydroxyapatite/chitosan composite hydrogels loaded with exosomes derived from miR-126-3p overexpressed synovial mesenchymal stem cells for diabetic chronic wound healing. J Mater Chem B 2016; 4:6830-6841. [PMID: 32263577 DOI: 10.1039/c6tb01560c] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The exploration of an effective diabetic chronic wound healing process still remains a great challenge. Herein, we used gene overexpression technology to obtain synovial mesenchymal stem cells (SMSCs) and the miR-126-3p highly expressed SMSCs (SMSCs-126). The exosomes derived from miR-126-3p overexpressed SMSCs (SMSCs-126-Exos) with a particle size of 85 nm were encapsulated in hydroxyapatite/chitosan (HAP-CS) composite hydrogels (HAP-CS-SMSCs-126-Exos) as wound dressings. The SMSCs-126-Exos, CS and low-crystallinity HAP nanorods with a length of 200 nm and a diameter of 50 nm are uniformly dispersed within the whole composite hydrogel. The HAP-CS-SMSCs-126-Exos possess the controlled release property of SMSCs-126-Exos for at least 6 days. The released SMSCs-126-Exos nanoparticles stimulate the proliferation and migration of human dermal fibroblasts and human dermal microvascular endothelial cells (HMEC-1). At the same time, the migration and capillary-network formation of HMEC-1 are promoted through the activation of MAPK/ERK and PI3K/AKT. In vivo tests demonstrate that the HAP-CS-SMSCs-126-Exos successfully promote wound surface re-epithelialization, accelerate angiogenesis, and expedite collagen maturity due to the presence of HAP, CS and SMSCs-126-Exos. Therefore, the HAP-CS-SMSCs-126-Exos possess great potential application for diabetic chronic wound healing, and especially provide the possibility of using exosomes derived from modified cells as a new approach to bring wonderful functionality and controllability in future chronic wound therapy.
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Affiliation(s)
- Min Li
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China.
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Sahiner N, Sagbas S, Sahiner M, Silan C. P(TA) macro-, micro-, nanoparticle-embedded super porous p(HEMA) cryogels as wound dressing material. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:317-326. [PMID: 27770897 DOI: 10.1016/j.msec.2016.09.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 08/14/2016] [Accepted: 09/08/2016] [Indexed: 12/18/2022]
Abstract
Super porous poly(2-hydroxy ethyl methacrylate) (p(HEMA)) cryogel was successfully synthesized by using polyethylene glycol diacrylate (p(EGDA)) crosslinker under cryogenic conditions. Poly(Tannic acid) (p(TA)) macro-, micro-, and nanoparticles prepared from a natural polyphenol, tannic acid (TA), were embedded into p(HEMA) cryogel networks to obtain composite p(TA) particle-embedded p(HEMA) cryogel. Different size ranges of spherical p(TA) particles, 2000-500μm, 500-200μm, 200-20μm, and 20-0.5μm size, were included in the cryogel network and illustrated by digital camera, optic microscope, and SEM images of the microgel-cryogel network. The swelling properties and moisture content of p(TA) microgel-embedded p(HEMA) cryogel were investigated at wound healing pH conditions such as pH5.4, 7.4, and 9 at 37.5°C, and the highest swelling capacity was found at pH9 with 972±2% swelling in 30s. Higher amounts of DI water were quickly absorbed by p(HEMA)-based cryogel, and moisture retention within the cryogel structure for a longer time period at room temperature is due to existence of p(TA) particles. Degradation profiles of p(TA) particle-embedded p(HEMA) cryogel were shown to be controlled by different pH conditions, and a linear release profile was found with total cumulative release of 5.8±0.8mg/g TA up to 12days at pH7.4 and 37.5°C. The antioxidant behavior of degraded p(TA) particles from p(HEMA) cryogel were found as 46±1μgmL-1 gallic acid equivalent and 165±18mMtroloxequivalentg-1. The p(TA) particle-embedded p(HEMA) cryogel has high hemocompatibility with 0.0158±0.0126% hemolysis ratio, and effective hemostatic properties with 8.1±0.9 blood clotting index.
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Affiliation(s)
- Nurettin Sahiner
- Faculty of Science & Arts, Chemistry Department, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey; Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey.
| | - Selin Sagbas
- Faculty of Science & Arts, Chemistry Department, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey
| | - Mehtap Sahiner
- Department of Leather Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Coskun Silan
- School of Medicine, Department of Pharmacology, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Turkey
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Seow WY, Salgado G, Lane EB, Hauser CAE. Transparent crosslinked ultrashort peptide hydrogel dressing with high shape-fidelity accelerates healing of full-thickness excision wounds. Sci Rep 2016; 6:32670. [PMID: 27600999 PMCID: PMC5013444 DOI: 10.1038/srep32670] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 08/12/2016] [Indexed: 01/26/2023] Open
Abstract
Wound healing is a major burden of healthcare systems worldwide and hydrogel dressings offer a moist environment conducive to healing. We describe cysteine-containing ultrashort peptides that self-assemble spontaneously into hydrogels. After disulfide crosslinking, the optically-transparent hydrogels became significantly stiffer and exhibited high shape fidelity. The peptide sequence (LIVAGKC or LK6C) was then chosen for evaluation on mice with full-thickness excision wounds. Crosslinked LK6C hydrogels are handled easily with forceps during surgical procedures and offer an improvement over our earlier study of a non-crosslinked peptide hydrogel for burn wounds. LK6C showed low allergenic potential and failed to provoke any sensitivity when administered to guinea pigs in the Magnusson-Kligman maximization test. When applied topically as a dressing, the medium-infused LK6C hydrogel accelerated re-epithelialization compared to controls. The peptide hydrogel is thus safe for topical application and promotes a superior rate and quality of wound healing.
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Affiliation(s)
- Wei Yang Seow
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Republic of Singapore
| | - Giorgiana Salgado
- Institute of Medical Biology, 8A Biomedical Grove, Singapore 138648, Republic of Singapore
| | - E Birgitte Lane
- Institute of Medical Biology, 8A Biomedical Grove, Singapore 138648, Republic of Singapore
| | - Charlotte A E Hauser
- Laboratory for Nanomedicine, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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Thermal and magnetic properties of chitosan-iron oxide nanoparticles. Carbohydr Polym 2016; 149:382-90. [DOI: 10.1016/j.carbpol.2016.04.123] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 04/01/2016] [Accepted: 04/28/2016] [Indexed: 11/22/2022]
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Rafique A, Mahmood Zia K, Zuber M, Tabasum S, Rehman S. Chitosan functionalized poly(vinyl alcohol) for prospects biomedical and industrial applications: A review. Int J Biol Macromol 2016; 87:141-54. [DOI: 10.1016/j.ijbiomac.2016.02.035] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/03/2016] [Accepted: 02/11/2016] [Indexed: 01/27/2023]
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Hixon KR, Eberlin CT, Kadakia PU, McBride-Gagyi SH, Jain E, Sell SA. A comparison of cryogel scaffolds to identify an appropriate structure for promoting bone regeneration. Biomed Phys Eng Express 2016. [DOI: 10.1088/2057-1976/2/3/035014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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