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Hejazi S, Carpentieri A, Marotta A, Restaino OF, AntonellaGiarra, Solimeno I, Zannini D, Mariniello L, Giosafatto CVL, Porta R. Chitosan/poly-γ-glutamic acid crosslinked hydrogels: Characterization and application as bio-glues. Int J Biol Macromol 2024; 277:133653. [PMID: 38992534 DOI: 10.1016/j.ijbiomac.2024.133653] [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: 02/15/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024]
Abstract
Ecofriendly hydrogels were prepared using chitosan (CH, 285 kDa) and two fractions of low molecular weight microbial poly-γ-glutamic acid (γ-PGA) (R1 and R2 of 59 kDa and 20 kDa, respectively). The hydrogels were synthesized through sustainable physical blending, employing three CH/γ-PGA mass ratios (1/9, 2/8, and 3/7), resulting in the formation of physically crosslinked materials. The six resulting CH/R1 and CH/R2 hydrogels were physico-chemically characterized and the ones with the highest yields (CH/R1 and CH/R2 ratio of 3/7), analyzed for rheological and morphological properties, showed to act as bio-glues on wood and aluminum compared to commercial vinyl- (V1) and acetovinyl (V2) glues. Lap shear analyses of CH/R1 and CH/R2 blends exhibited adhesive strength on wood, as well as adhesive/cohesive failure like that of V1 and V2. Conversely, CH/R2 had higher adhesive strength and adhesive/cohesive failure on aluminum, while CH/R1 showed an adhesion strength with adhesive failure on the metal similar to that of V1 and V2. Scanning electron microscopy revealed the formation of strong physical bonds between the hydrogels and both substrates. Beyond their use as bio-adhesives, the unique properties of the resulting crosslinked materials make them potentially suitable for various applications in paint, coatings, heritage preservation, and medical sector.
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Affiliation(s)
- Sondos Hejazi
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy
| | - Andrea Carpentieri
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy
| | - Angela Marotta
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples "Federico II", 80126 Naples, Italy
| | | | - AntonellaGiarra
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy
| | - Ilaria Solimeno
- University Suor Orsola Benincasa, Department of Humanities, Via Santa Caterina da Siena, 32, Naples 80132, Italy
| | - Domenico Zannini
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy; Institute for Polymers, Composites, and Biomaterials, National Council of Research, 80078 Pozzuoli, Italy; Institute of Chemical Sciences and Technologies "G. Natta" (SCITEC), National Council of Research, Via De Marini 6, 16149, Genova (GE), Italy
| | - Loredana Mariniello
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy
| | - C Valeria L Giosafatto
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy.
| | - Raffaele Porta
- Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy
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Baravkar SB, Lu Y, Masoud AR, Zhao Q, He J, Hong S. Development of a Novel Covalently Bonded Conjugate of Caprylic Acid Tripeptide (Isoleucine-Leucine-Aspartic Acid) for Wound-Compatible and Injectable Hydrogel to Accelerate Healing. Biomolecules 2024; 14:94. [PMID: 38254694 PMCID: PMC10813153 DOI: 10.3390/biom14010094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Third-degree burn injuries pose a significant health threat. Safer, easier-to-use, and more effective techniques are urgently needed for their treatment. We hypothesized that covalently bonded conjugates of fatty acids and tripeptides can form wound-compatible hydrogels that can accelerate healing. We first designed conjugated structures as fatty acid-aminoacid1-amonoacid2-aspartate amphiphiles (Cn acid-AA1-AA2-D), which were potentially capable of self-assembling into hydrogels according to the structure and properties of each moiety. We then generated 14 novel conjugates based on this design by using two Fmoc/tBu solid-phase peptide synthesis techniques; we verified their structures and purities through liquid chromatography with tandem mass spectrometry and nuclear magnetic resonance spectroscopy. Of them, 13 conjugates formed hydrogels at low concentrations (≥0.25% w/v), but C8 acid-ILD-NH2 showed the best hydrogelation and was investigated further. Scanning electron microscopy revealed that C8 acid-ILD-NH2 formed fibrous network structures and rapidly formed hydrogels that were stable in phosphate-buffered saline (pH 2-8, 37 °C), a typical pathophysiological condition. Injection and rheological studies revealed that the hydrogels manifested important wound treatment properties, including injectability, shear thinning, rapid re-gelation, and wound-compatible mechanics (e.g., moduli G″ and G', ~0.5-15 kPa). The C8 acid-ILD-NH2(2) hydrogel markedly accelerated the healing of third-degree burn wounds on C57BL/6J mice. Taken together, our findings demonstrated the potential of the Cn fatty acid-AA1-AA2-D molecular template to form hydrogels capable of promoting the wound healing of third-degree burns.
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Affiliation(s)
- Sachin B. Baravkar
- Neuroscience Center of Excellence, School of Medicine, L.S.U. Health, New Orleans, LA 70112, USA
| | - Yan Lu
- Neuroscience Center of Excellence, School of Medicine, L.S.U. Health, New Orleans, LA 70112, USA
| | - Abdul-Razak Masoud
- Neuroscience Center of Excellence, School of Medicine, L.S.U. Health, New Orleans, LA 70112, USA
| | - Qi Zhao
- NMR Laboratory, Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Jibao He
- Microscopy Laboratory, Tulane University, New Orleans, LA 70118, USA
| | - Song Hong
- Neuroscience Center of Excellence, School of Medicine, L.S.U. Health, New Orleans, LA 70112, USA
- Department of Ophthalmology, School of Medicine, L.S.U. Health, New Orleans, LA 70112, USA
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Feng W, Wang Z. Tailoring the Swelling-Shrinkable Behavior of Hydrogels for Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303326. [PMID: 37544909 PMCID: PMC10558674 DOI: 10.1002/advs.202303326] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/15/2023] [Indexed: 08/08/2023]
Abstract
Hydrogels with tailor-made swelling-shrinkable properties have aroused considerable interest in numerous biomedical domains. For example, as swelling is a key issue for blood and wound extrudates absorption, the transference of nutrients and metabolites, as well as drug diffusion and release, hydrogels with high swelling capacity have been widely applicated in full-thickness skin wound healing and tissue regeneration, and drug delivery. Nevertheless, in the fields of tissue adhesives and internal soft-tissue wound healing, and bioelectronics, non-swelling hydrogels play very important functions owing to their stable macroscopic dimension and physical performance in physiological environment. Moreover, the negative swelling behavior (i.e., shrinkage) of hydrogels can be exploited to drive noninvasive wound closure, and achieve resolution enhancement of hydrogel scaffolds. In addition, it can help push out the entrapped drugs, thus promote drug release. However, there still has not been a general review of the constructions and biomedical applications of hydrogels from the viewpoint of swelling-shrinkable properties. Therefore, this review summarizes the tactics employed so far in tailoring the swelling-shrinkable properties of hydrogels and their biomedical applications. And a relatively comprehensive understanding of the current progress and future challenge of the hydrogels with different swelling-shrinkable features is provided for potential clinical translations.
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Affiliation(s)
- Wenjun Feng
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
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4
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Wang J, Yang Y, Huang L, Kong L, Wang X, Shi J, Lü Y, Mu H, Duan J. Development of responsive chitosan-based hydrogels for the treatment of pathogen-induced skin infections. Int J Biol Macromol 2022; 219:1009-1020. [PMID: 35926673 DOI: 10.1016/j.ijbiomac.2022.07.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 07/08/2022] [Accepted: 07/25/2022] [Indexed: 11/27/2022]
Abstract
Vancomycin (Van) remains one of the first-line drugs for the treatment of wound infections caused by methicillin-resistant Staphylococcus aureus (MRSA). However, the unsatisfactory bioavailability of vancomycin alone has greatly limited its potential health benefits. Here a responsive chitosan-based hydrogel was developed as the delivery system which not only would reduce this side effect but also increase efficacy of vancomycin. The hydrogel was prepared by grafting chitosan and cinnamaldehyde-based thioacetal (CTA) together with ginipin (G) as the crosslinker. Upon exposure to reactive oxygen species which were enriched in the bacterial wound, the hydrogel can locally degrade and sustainably release the loaded vancomycin near the lesion to compete with the troubling MRSA. Compared with vancomycin alone, the chitosan-based hydrogel loaded with vancomycin demonstrated accelerated acute wound healing. This achievement reveals that this multi-functional hydrogel may be a promising drug-delivery device for improving the efficacy of local antibiotic therapy.
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Affiliation(s)
- Junjie Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yu Yang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830017, China
| | - Lijie Huang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lili Kong
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xing Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jingru Shi
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yinghua Lü
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Haibo Mu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Jinyou Duan
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Dendrobium officinale Enzyme Changing the Structure and Behaviors of Chitosan/γ-poly(glutamic acid) Hydrogel for Potential Skin Care. Polymers (Basel) 2022; 14:polym14102070. [PMID: 35631951 PMCID: PMC9146334 DOI: 10.3390/polym14102070] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023] Open
Abstract
Hydrogels have been widespreadly used in various fields. But weak toughness has limited their further applications. In this study, Dendrobium officinale enzyme (DOE) was explored to improve chitosan/γ-poly(glutamic acid) (CS/γ-PGA) hydrogel in the structure and properties. The results indicated that DOE with various sizes of ingredients can make multiple noncovalent crosslinks with the skeleton network of CS/γ-PGA, significantly changing the self-assembly of CS/γ-PGA/DOE hydrogel to form regular protuberance nanostructures, which exhibits stronger toughness and better behaviors for skin care. Particularly, 4% DOE enhanced the toughness of CS/γ-PGA/DOE hydrogel, increasing it by 116%. Meanwhile, water absorption, antioxygenation, antibacterial behavior and air permeability were increased by 39%, 97%, 27% and 52%.
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Wu H, Chen J, Kim J, Zhu P, Zhu J, Gao Q, Gao C. Facile preparation of transparent poly (γ‐glutamic acid) modified poly (vinyl alcohol) hydrogels with high tensile strength and toughness. J Appl Polym Sci 2022. [DOI: 10.1002/app.52204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hailin Wu
- School of Chemistry and Chemical Engineering Yangzhou University Jiangsu, Yangzhou China
| | - Jing Chen
- School of Chemistry and Chemical Engineering Yangzhou University Jiangsu, Yangzhou China
| | | | - Peizhi Zhu
- School of Chemistry and Chemical Engineering Yangzhou University Jiangsu, Yangzhou China
| | - Jiadeng Zhu
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge Tennessee USA
| | - Qiang Gao
- School of Chemistry and Chemical Engineering Yangzhou University Jiangsu, Yangzhou China
| | - Chunxia Gao
- School of Chemistry and Chemical Engineering Yangzhou University Jiangsu, Yangzhou China
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Tao L, Long H, Zhang J, Qi L, Zhang S, Li T, Li S. Preparation and coating application of γ-polyglutamic acid hydrogel to improve storage life and quality of shiitake mushrooms. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Nisar S, Pandit AH, Nadeem M, Pandit AH, Rizvi MMA, Rattan S. γ-Radiation induced L-glutamic acid grafted highly porous, pH-responsive chitosan hydrogel beads: A smart and biocompatible vehicle for controlled anti-cancer drug delivery. Int J Biol Macromol 2021; 182:37-50. [PMID: 33775765 DOI: 10.1016/j.ijbiomac.2021.03.134] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 01/22/2023]
Abstract
In the present work, highly porous, pH-responsive, and biocompatible chitosan-based hydrogel beads were prepared through gamma-irradiated graft copolymerization technique using L-glutamic acid as the monomer. The glutamic acid grafted chitosan (CH-g-GA) hydrogel beads, loaded with the anti-cancer drug (Doxorubicin, Dox), were exploited for their potential application as anti-cancer drug delivery system. The grafting conditions were optimized by varying irradiation dose (kGy) and monomer concentration. Further, the hydrogel beads were analysed using FTIR, XRD, SEM, TGA/DSC, Zeta potential studies, BET analysis and their strength was determined using rheological analysis. The swelling characteristics of the beads were studied at various simulated body pH (2.1, 5.8, and 7.4) to study their pH-responsive behaviour. The in-vitro drug release from the beads was thus evaluated at pH 5.8, 7.4 using UV-visible spectroscopy. The highest swelling ratio (426%) and drug release (81.33% in 144 h) was observed at the pH of 5.8. The MTT assay was performed on HEK-293 cell-line to check their cytocompatibilty and the cell proliferation of Dox-loaded beads was studied on MCF-7 cell-line. A significant cytotoxicity against the cancer-cells was observed which further established their promising use in the controlled delivery of anti-cancer agents for localized cancer therapy.
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Affiliation(s)
- Safiya Nisar
- Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201303, India
| | - Ashiq Hussain Pandit
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Masood Nadeem
- Genome Biology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Altaf Hussain Pandit
- Department of Chemistry, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India
| | - M Mushahid Alam Rizvi
- Genome Biology Lab, Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Sunita Rattan
- Amity Institute of Applied Sciences, Amity University, Sector-125, Noida 201303, India.
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Recognition and selective extraction of poly-γ-glutamic acid based on molecular imprinting technology. Int J Biol Macromol 2020; 172:1-9. [PMID: 33383078 DOI: 10.1016/j.ijbiomac.2020.12.180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 11/20/2022]
Abstract
Poly-γ-glutamic acid (γ-PGA) is one of the few bacterial polymers in nature with high added value of biodegradability. Especially, the traditional method of extracting γ-PGA is organic solvent extraction, etc., which has the disadvantages of low extraction rate and serious environmental pollution. With the expansion of γ-PGA industrial fermentation, an efficient and environmentally friendly method is required to be adopted. In this contribution, we report a novel method of separation of γ-PGA from fermentation broth based on molecular imprinting technology. The molecular imprinted polymer (MIP) was synthesized from chitosan (CS) and glutaraldehyde in the presence of γ-PGA. A nonimprinted polymer (NIP) was also synthesized by the same procedure in the absence of γ-PGA. The chemical structures and morphological structures of both MIP and NIP were examined by FTIR spectroscopy and scanning electron microscopy. The adsorption isotherms showed that the maximum adsorption capacity of MIP was 137.85 mg/g. The maximum adsorption capacity in the adsorption of NIP was 68.92 mg/g, which indicates that MIP shows specific selectivity for γ-PGA. A high saturated absorption capacity (Qmax=140.90 mg/g) was calculated from Freundlich isotherm equation. The imprinting factor of MIP was 4.76, indicating that MIP possess good recognition ability and selectivity for γ-PGA. The adsorption capacity decreased slightly (17.0%), which suggests the satisfactory reusability of γ-PGA after 5 cycles of reuse. Our study indicates that molecularly imprinted polymers present development prospects in the effective and selective separation of γ-PGA from fermentation broth compared with organic solvent precipitation.
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Tahari N, de Hoyos-Martinez PL, Abderrabba M, Ayadi S, Labidi J. Lignin - montmorillonite hydrogels as toluene adsorbent. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125108] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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