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Manaila E, Craciun G. Poly(acrylic acid)-Sodium Alginate Superabsorbent Hydrogels Synthesized by Electron-Beam Irradiation-Part II: Swelling Kinetics and Absorption Behavior in Various Swelling Media. Gels 2024; 10:609. [PMID: 39330211 PMCID: PMC11431746 DOI: 10.3390/gels10090609] [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: 08/29/2024] [Revised: 09/18/2024] [Accepted: 09/21/2024] [Indexed: 09/28/2024] Open
Abstract
Hybrid hydrogels with superabsorbent properties based on acrylic acid (20%), sodium alginate (0.5%) and poly(ethylene oxide) (0.1%) were obtained by electron-beam irradiation between 5 and 20 kGy, and are characterized by different physical and chemical methods; the first results reported showed gel fractions over 87%, cross-link densities under 9.9 × 103 mol/cm3 and swelling degrees of 400 g/g. Two types of hydrogels (without and with 0.1% initiator potassium persulfate) have been subjected to swelling and deswelling experiments in different swelling media with different pHs, chosen in accordance with the purpose for which these superabsorbent materials were obtained, i.e., water and nutrients carriers for agricultural purposes: 6.05 (distilled water), 7.66 (tap water), 5.40 (synthetic nutrient solution) and 7.45 (organic nutrient solution). Swelling kinetics and swelling dynamics have been also studied in order to investigate the influence of swelling media type and pH on the absorption phenomenon. The swelling and deswelling behaviors were influenced by the hydrogel characteristics and pH of the swelling media. Both the polymeric chain relaxation (non-Fickian diffusion) and macromolecular relaxation (super case II) phenomenon were highlighted as a function of swelling media type.
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Affiliation(s)
- Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
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de la Rosa O, Aguayo-Acosta A, Valenzuela-Amaro HM, Meléndez-Sánchez ER, Sosa-Hernández JE, Parra-Saldívar R. Development of biomaterial composite hydrogel as a passive sampler with potential application in wastewater-based surveillance. Heliyon 2024; 10:e37014. [PMID: 39296035 PMCID: PMC11407980 DOI: 10.1016/j.heliyon.2024.e37014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 07/08/2024] [Accepted: 08/26/2024] [Indexed: 09/21/2024] Open
Abstract
Nowadays, the need to track fast-spreading infectious diseases has raised due to the recent COVID-19 disease pandemic. As a response, Wastewater-based Surveillance (WBS) has emerged as an early detection and disease tracking method for large populations that enables a comprehensive overview of public health allowing for a faster response from public health sector to prevent large outbreaks. The process to achieve WBS requires a highly intensive sampling strategy with either expensive equipment or trained personnel to continuously sample. The sampling problem can be addressed by passive sampler development. Chitosan-based hydrogels are recognized for their capability to sample and remove various contaminants from wastewater, including metals, dyes, pharmaceuticals, among others. However, chitosan-based hydrogels unique characteristics, can be exploited to develop passive samplers of genetic material that can be a very valuable tool for WBS. This study aimed to develop a novel chitosan hydrogel formulation with enhanced characteristics suitable for use as a passive sampler of genetic material and its application to detect disease-causing pathogens present in wastewater. The study evaluates the effect of the concentration of different components on the formulation of a Chitosan composite hydrogel (Chitosan, Glutaraldehyde, Microcrystalline cellulose (MCC), and Polyethylene glycol (PEG)) on the hydrogel properties using a Box Hunter & Hunter experimental matrix. Hydrogels' weight, thickness, swelling ratio, microscopic morphology (SEM), FTIR assay, and zeta potential were characterized. The resulting hydrogel formulations were shown to be highly porous, positively charged (Zeta potential up to 35.80 ± 1.44 mV at pH 3) and with high water swelling capacity (up to 703.89 ± 15.00 %). Based on the results, a formulation from experimental design was selected and then evaluated its capacity to adsorb genetic material from a control spiked water with Influenza A virus synthetic vector. The adsorption capacity of the selected formulation was 4157.04 ± 64.74 Gene Copies/mL of Influenza A virus synthetic vector. The developed hydrogel showed potential to be used as passive sampler for pathogen detection in wastewater. However, deeper research can be conducted to improve adsorption, desorption and extraction techniques of genetic material from chitosan-hydrogel matrices.
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Affiliation(s)
- Orlando de la Rosa
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Alberto Aguayo-Acosta
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Hiram Martín Valenzuela-Amaro
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Edgar Ricardo Meléndez-Sánchez
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Juan Eduardo Sosa-Hernández
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Roberto Parra-Saldívar
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Mexico
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
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Ribeiro ARM, Teixeira MO, Ribeiro L, Tavares TD, Miranda CS, Costa AF, Ribeiro A, Silva MM, Silva C, Felgueiras HP. Sodium alginate-based multifunctional sandwich-like system for treating wound infections. BIOMATERIALS ADVANCES 2024; 162:213931. [PMID: 38924805 DOI: 10.1016/j.bioadv.2024.213931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/29/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024]
Abstract
Microbial colonization and development of infections in wounds is a sign of chronicity. The prevailing approach to manage and treat these wounds involves dressings. However, these often fail in effectively addressing infections, as they struggle to both absorb exudates and maintain optimal local moisture. The system here presented was conceptualized with a three-layer design: the outer layer made of a fibrous polycaprolactone (PCL) film, to act as a barrier for preventing microorganisms and impurities from reaching the wound; the intermediate layer formed of a sodium alginate (SA) hydrogel loaded with ampicillin (Amp) for fighting infections; and the inner layer comprised of a fibrous film of PCL and polyethylene glycol (PEG) for facilitating cell recognition and preventing wound adhesion. Thermal evaluations, degradation, wettability and release behavior testing confirmed the system resistance overtime. The sandwich demonstrated the capability for absorbing exudates (≈70 %) and exhibited a controlled release of Amp for up to 24 h. Antimicrobial testing was performed against Staphylococcus aureus and Escherichia coli, as representatives of Gram-positive and Gram-negative bacteria: >99 % elimination of bacteria. Cell cytotoxicity assessments showed high cytocompatibility levels, confirming the safety of the proposed sandwich system. Adhesion assays confirmed the system ease of detaching without mechanical effort (0.37 N). Data established the efficiency of the sandwich-like system, suggesting promising applications in infected wound care.
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Affiliation(s)
- Ana R M Ribeiro
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Marta O Teixeira
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Lara Ribeiro
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal; Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Tânia D Tavares
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Catarina S Miranda
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - André F Costa
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Artur Ribeiro
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - M Manuela Silva
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Carla Silva
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Helena P Felgueiras
- Centre for Textile Science and Technology (2C2T), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal.
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Hong SH, Lee MH, Go EJ, Park JC. A promising strategy for combating bacterial infections through the use of light-triggered ROS in Ce6-immobilized hydrogels. Regen Biomater 2024; 11:rbae101. [PMID: 39323742 PMCID: PMC11424027 DOI: 10.1093/rb/rbae101] [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] [Received: 05/23/2024] [Revised: 07/02/2024] [Accepted: 07/19/2024] [Indexed: 09/27/2024] Open
Abstract
The reactive oxygen species (ROS) are composed of highly reactive molecules, including superoxide anions (O 2 • - ), hydrogen peroxide (H2O2) and hydroxyl radicals. Researchers have explored the potential benefits of using hydrogel dressings that incorporate active substances to accelerate wound healing. The present investigation involved the development of a hyaluronic acid (HA) hydrogel capable of producing ROS using LED irradiation. The process of creating a composite hydrogel was created by chemically bonding Ce6 to an amide group. Our analysis revealed that the synthesized hydrogel had a well-structured amide bond, and the degree of cross-linking was assessed through swelling, enzyme stability and cytotoxicity tests. ROS production was found to be influenced by both the intensity and duration of light exposure. Furthermore, in situations where cell toxicity resulting from ROS generation in the hydrogel surpassed 70%, no detectable genotoxic consequences were evident, and antibacterial activity was confirmed to be directly caused by the destruction of bacterial membranes as a result of ROS damage. Furthermore, the utilization of the generated ROS influences the polarization of macrophages, resulting in the secretion of pro-inflammatory cytokines, which is a characteristic feature of M1 polarization. Subsequently, we validated the efficacy of a HA hydrogel that produces ROS to directly eradicate microorganisms. Furthermore, this hydrogel facilitated indirect antibacterial activity by stimulating macrophages to release pro-inflammatory cytokines. These cytokines are crucial for coordinating cell-mediated immune responses and for modulating the overall effectiveness of the immune system. Therefore, the Ce6-HA hydrogel has the potential to serve as an effective wound dressing solution for infected wounds because of its ability to produce substantial levels or a consistent supply.
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Affiliation(s)
- Seung Hee Hong
- Department of Medical Engineering, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - Mi Hee Lee
- Department of Medical Engineering, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - Eun Jeong Go
- Department of Medical Engineering, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - Jong-Chul Park
- Department of Medical Engineering, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
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Omar H, Alsharaeh E. Improving Water Retention in Sandy Soils with High-Performance Superabsorbents Hydrogel Polymer. ACS OMEGA 2024; 9:23531-23541. [PMID: 38854586 PMCID: PMC11154724 DOI: 10.1021/acsomega.4c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 06/11/2024]
Abstract
Improving the water retention capability of drained and sandy soils is vital for nurturing high-quality soil. This protective measure ensures the conservation of essential nutrients, such as fertilizers and organic matter; maintains soil quality; and prevents erosion. Superabsorbent hydrogels (SAHs) have emerged as promising solutions to boost water retention in sandy soils, typically characterized by a poor water-holding capacity. However, there is a noticeable gap in the existing literature regarding their potential to simultaneously achieve elevated swelling ratio (SR) and water retention ratio (WRR) levels. This study presents innovative SAH systems with the highest reported SR value yet, exceeding 10000 wt %, and remarkable WRR capability explicitly designed for agricultural use. These novel SAHs were synthesized using the chemical cross-linking polymerization method from polyacrylamide (PAM) polymer, employing various PAM ratios through a one-pot hydrothermal vessel method along with diverse drying techniques. The prepared hydrogels were characterized using various techniques, such as FTIR and DSC; unraveling insights into their structural properties; and the kinetics of the swelling process. Notably, these synthesized hydrogels exhibit robustness, maintaining structural integrity even under extreme conditions such as high temperatures or pressures. Our findings suggest immense potential for these hydrogels as soil enhancers in agriculture, offering a sustainable solution to bolster soil quality and nutrient preservation.
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Affiliation(s)
- Haneen Omar
- Alfaisal University, College of Science, Chemistry Department, Riyadh 11533, Saudi Arabia
| | - Edreese Alsharaeh
- Alfaisal University, College of Science, Chemistry Department, Riyadh 11533, Saudi Arabia
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6
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Liu Y, Xu B, Li Y, Quek SY, Huang K. Eco-Friendly and Self-Sanitizing Microporous Cellulose Sponge (MCS)-Based Cooling Media for Mitigating Microbial Cross-Contamination in the Food Cold Chain. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309753. [PMID: 38544489 DOI: 10.1002/advs.202309753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/15/2024] [Indexed: 06/06/2024]
Abstract
Maintaining precise temperature control is vital for cold chain food transport, as temperature fluctuations can cause significant food safety and quality issues. During transport, ice that melts can promote the growth of microbes and their spread, resulting in microbial cross-contamination. This study developed sustainable, non-melting, self-sanitizing "ice cubes" using food grade compositions including microporous cellulose sponges (MCS) and photosensitizers, aimed at enhancing temperature regulation and minimizing microbial contamination in the cold chain. Upon absorbing water, the MCS matched traditional ice in cooling efficiency and heat absorption and exhibit remarkable mechanical and thermal durability, withstanding multiple freeze-thaw cycles and compressive stresses. The cationic MCS combined with erythrosine B demonstrated strong self-sanitizing capabilities, effectively reducing microbial cross-contamination in food models. Additionally, the release rates of photosensitizers from the MCS can be modulated by altering environmental ionic strength. This research offers viable solutions to address microbial cross-contamination challenges in current cold chain systems.
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Affiliation(s)
- Yijun Liu
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Boyang Xu
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Yingxin Li
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Siew-Young Quek
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Kang Huang
- Department of Biological Systems Engineering, Washington State University, Pullman, WA, 99164, USA
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7
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Liu R, Liu Y, Fu S, Cheng Y, Jin K, Ma J, Wan Y, Tian Y. Humidity Adaptive Antifreeze Hydrogel Sensor for Intelligent Control and Human-Computer Interaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308092. [PMID: 38168530 DOI: 10.1002/smll.202308092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/14/2023] [Indexed: 01/05/2024]
Abstract
Conductive hydrogels have emerged as ideal candidate materials for strain sensors due to their signal transduction capability and tissue-like flexibility, resembling human tissues. However, due to the presence of water molecules, hydrogels can experience dehydration and low-temperature freezing, which greatly limits the application scope as sensors. In this study, an ionic co-hybrid hydrogel called PBLL is proposed, which utilizes the amphoteric ion betaine hydrochloride (BH) in conjunction with hydrated lithium chloride (LiCl) thereby achieving the function of humidity adaptive. PBLL hydrogel retains water at low humidity (<50%) and absorbs water from air at high humidity (>50%) over the 17 days of testing. Remarkably, the PBLL hydrogel also exhibits strong anti-freezing properties (-80 °C), high conductivity (8.18 S m-1 at room temperature, 1.9 S m-1 at -80 °C), high gauge factor (GF approaching 5.1). Additionally, PBLL hydrogels exhibit strong inhibitory effects against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), as well as biocompatibility. By synergistically integrating PBLL hydrogel with wireless transmission and Internet of Things (IoT) technologies, this study has accomplished real-time human-computer interaction systems for sports training and rehabilitation evaluation. PBLL hydrogel exhibits significant potential in the fields of medical rehabilitation, artificial intelligence (AI), and the Internet of Things (IoT).
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Affiliation(s)
- Ruonan Liu
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
| | - Yiying Liu
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
- Foshan Graduate School of Innovation, Northeastern University, Foshan, 528300, China
| | - Simian Fu
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
| | - Yugui Cheng
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
| | - Kaiming Jin
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
| | - Jingtong Ma
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
| | - Yucen Wan
- Department of Rehabilitation, Shengjing Hospital of China Medical University, Shenyang, 110169, China
| | - Ye Tian
- College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, 110169, China
- Foshan Graduate School of Innovation, Northeastern University, Foshan, 528300, China
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8
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Chaudhary A, Kumar K, Singh VK, Rai S, Kumar V, Tungala K, Das A, Jana T. Poly(acrylamide)-co-poly(hydroxyethyl)methacrylate-co-poly(cyclohexyl methacrylate) hydrogel platform for stability, storage and biocatalytic applications of urease. Int J Biol Macromol 2024; 265:131039. [PMID: 38518938 DOI: 10.1016/j.ijbiomac.2024.131039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
In our present work, an explicit crosslinked thermo-responsive hydrogel platform has been developed, by using polyacrylamide (PAAm), poly(2-hydroxyethyl methacrylate) (PHEMA) and poly(cyclohexyl methacrylate) (PCHMA), and then coupled with urease to yield bioconjugates (BCs). Synergic effect of these polymer units provides thermoresponsive nature, optimum crosslinking with desired swelling behaviour, and stability and improved catalytic to Urease in the resultant BCs. Synthesis of the terpolymer has been achieved by employing HEMA (monomer as well as crosslinker), instead of using the conventional crosslinkers, through free radical solution polymerization technique. Various grades of TRPUBs have been fabricated by varying HEMA and CHMA contents while keeping fixed amounts of AAm. Further, the structural analysis of BCs has been done by fourier transform infra-red spectroscopic study and their thermal stabilities have been studied by thermogravimetric analysis. Urea present in TRPUBs has beenanalysed for its hydrolysis atdifferent temperatures viz., 25 °C, 45 °C and 70 °C. Further, the effect of crosslinking, temperature and reaction time on catalytic activities of TRPUBs has been studied. TRPUBs grades have showna maximum swelling capacity up to 5200 %; excellent catalytic activity even at 70 °C; and 85 % activity retention after 18 days storage in buffer medium.
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Affiliation(s)
- Aradhana Chaudhary
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, Uttar Pradesh, India
| | - Krishna Kumar
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, Uttar Pradesh, India; Department of Chemistry, School of Basic & Applied Science, Harcourt Butler Technical University, Kanpur 208002, Uttar Pradesh, India.
| | - Vinai K Singh
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, Uttar Pradesh, India
| | - Shailja Rai
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, Uttar Pradesh, India
| | - Vinod Kumar
- Department of Chemistry, Babu Shivnath Agrawal College, Mathura 281004, Uttar Pradesh, India
| | - Kranthikumar Tungala
- Department of Chemistry, Ewing Christian College, Allahabad University, Prayagraj 211003, Uttar Pradesh, India
| | - Anupam Das
- School of Chemistry, University of Hyderabad, Gachibowli-500046, Hyderabad, Telangana State, India
| | - Tushar Jana
- School of Chemistry, University of Hyderabad, Gachibowli-500046, Hyderabad, Telangana State, India
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Ling Z, Gu Q, Tan Y, Yan M, Dong H, Shao L, Chen S, Xu Y, Lu C, Yong Q. Biomimetic construction of environmental-tolerant composite hydrogels based on galactomannan for tough, flexible and conductive sensors. Int J Biol Macromol 2024; 261:129859. [PMID: 38302020 DOI: 10.1016/j.ijbiomac.2024.129859] [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: 11/14/2023] [Revised: 01/17/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Sustainable composite hydrogel materials with harsh environmental adaption and tolerance capability have received considerable interests but still remain as challenges. In this work, biomimetic strategy was adapted for construction of three-dimensional galactomannan (GM) hydrogels with intercalation of flexible polymer chains polyethyleneimine (PEI), biomacromolecules tannin acid (TA) and CeO2 nanoparticles (NPs). The hydrogels cross-linked with double-networks (DN) present not only pH-responsive water absorption property, but also boosted mechanical strength with highest toughness of 326 kJ/m3 and Young's modulus of 220 kPa. Self-healing and anti-freezing capabilities were revealed for the hydrogels by maintaining of fracture elongation (23 %) and fracture strength (250 kPa). TA, CeO2 NPs as well as the amide groups in PEI of the hydrogels introduced excellent bacterial prohibition performance on both Bacillus subtilis (B. subtilis) and Escherichia coli (E. coli). Also, due to the existence of the free ions, the hydrogels exhibited electric conductive properties, with wide-range high sensitivity and long-time conductive stability. In addition, various tensile strain degrees were related to the conductive resistance values, and the great recovery performance was proved by cyclic tensile-conductive tests for 3000 times. Therefore, the proposed GM-based hydrogels displayed great potentials as strain sensors that are adaptable and tolerant to various environmental conditions.
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Affiliation(s)
- Zhe Ling
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qihui Gu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China
| | - Yang Tan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Mengxing Yan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Hanqi Dong
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lupeng Shao
- State Key Laboratory of Biobased material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology (Ministry of Education), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, China
| | - Sheng Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Yanglei Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Chuanwei Lu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Yong
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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10
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Rethi L, Wong CC, Liu WJ, Chen CY, Jheng PR, Chen CH, Chuang EY. Self-adaptable calcium-based bioactive phosphosilicate-infused gelatin-hyaluronic hydrogel for orthopedic regeneration. Int J Biol Macromol 2024; 256:128091. [PMID: 37981271 DOI: 10.1016/j.ijbiomac.2023.128091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/21/2023]
Abstract
Bone regeneration is a critical and intricate process vital for healing fractures, defects, and injuries. Although conventional bone grafts are commonly used, they may fall short of optimal outcomes, thereby driving the need for alternative therapies. This research endeavors to explore synergistically designed Hyalo Glass Gel (HGG), and its explicitly for bone tissue engineering and regenerative medicine. The HGG composite comprises a modifiable calcium-based bioactive phosphosilicates-incorporated/crosslinked gelatin-hyaluronic scaffold showcasing promising functional characteristics. The study underscores the distinct attributes of each constituent (gelatin (Gel), hyaluronic acid (HA), and 45S5 calcium sodium phosphosilicates (BG)), and their cooperative influences on the scaffold's performance. Careful manipulation of crosslinking methods facilitates customization of HGG's mechanical attributes, degradation kinetics, and structural features, aligning them with the requisites of bone tissue engineering applications. Moreover, the integration of BG augments the scaffold's bioactivity, thereby expediting tissue regenerative processes. This comprehensive evaluation encompasses HGG's physicochemical aspects, mechanical traits rooted in viscoelasticity, as well as its biodegradability, in-vitro bioactivity, and interactions with stem cells. The result obtained underscores the viscoelastic nature of HGG, substantiating its capacity to foster mesenchymal stem cell viability, proliferation, and differentiation. Significantly, HGG manifests biocompatibility and adjustable attributes, exhibits pronounced drug (vancomycin) retention abilities, rendering it apt for wound healing, drug delivery, and bone regeneration. Its distinctive composition, tailored attributes, and mimicry of bone tissue's extracellular matrix (ECM) due to its bioactive nature, collectively situate its potential as a versatile biomaterial for subsequent research and development endeavors with compelling prospects in bone tissue engineering and regenerative medicine.
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Affiliation(s)
- Lekha Rethi
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Chin-Chean Wong
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11011, Taiwan; Taipei Medical University Research Center of Biomedical Devices Prototyping Production, Taipei 11011, Taiwan; International PhD Program for Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Wei-Jen Liu
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chieh-Ying Chen
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Pei-Ru Jheng
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chih-Hwa Chen
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11011, Taiwan; Taipei Medical University Research Center of Biomedical Devices Prototyping Production, Taipei 11011, Taiwan; Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan.
| | - Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 11031, Taiwan; Cell Physiology and Molecular Image Research Center, Taipei Medical University, Wan Fang Hospital, Taipei, Taiwan.
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11
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Lopez-Larrea N, Gallastegui A, Lezama L, Criado-Gonzalez M, Casado N, Mecerreyes D. Fast Visible-Light 3D Printing of Conductive PEDOT:PSS Hydrogels. Macromol Rapid Commun 2024; 45:e2300229. [PMID: 37357826 DOI: 10.1002/marc.202300229] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/01/2023] [Indexed: 06/27/2023]
Abstract
Functional inks for light-based 3D printing are actively being searched for being able to exploit all the potentialities of additive manufacturing. Herein, a fast visible-light photopolymerization process is showed of conductive PEDOT:PSS hydrogels. For this purpose, a new Type II photoinitiator system (PIS) based on riboflavin (Rf), triethanolamine (TEA), and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is investigated for the visible light photopolymerization of acrylic monomers. PEDOT:PSS has a dual role by accelerating the photoinitiation process and providing conductivity to the obtained hydrogels. Using this PIS, full monomer conversion is achieved in less than 2 min using visible light. First, the PIS mechanism is studied, proposing that electron transfer between the triplet excited state of the dye (3 Rf*) and the amine (TEA) is catalyzed by PEDOT:PSS. Second, a series of poly(2-hydroxyethyl acrylate)/PEDOT:PSS hydrogels with different compositions are obtained by photopolymerization. The presence of PEDOT:PSS negatively influences the swelling properties of hydrogels, but significantly increases its mechanical modulus and electrical properties. The new PIS is also tested for 3D printing in a commercially available Digital Light Processing (DLP) 3D printer (405 nm wavelength), obtaining high resolution and 500 µm hole size conductive scaffolds.
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Affiliation(s)
- Naroa Lopez-Larrea
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Guipuzcoa, 20018, Spain
| | - Antonela Gallastegui
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Guipuzcoa, 20018, Spain
| | - Luis Lezama
- Departamento de Química Orgánica e Inorgánica, University of the Basque Country UPV/EHU, Barrio Sarriena s/n, Leioa, Bizkaia, 48940, Spain
| | - Miryam Criado-Gonzalez
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Guipuzcoa, 20018, Spain
| | - Nerea Casado
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Guipuzcoa, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Avenida Tolosa 72, Donostia-San Sebastian, Guipuzcoa, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
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12
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Kadry G, El-Gawad HA. Rice straw derived cellulose-based hydrogels synthesis and applications as water reservoir system. Int J Biol Macromol 2023; 253:127058. [PMID: 37769760 DOI: 10.1016/j.ijbiomac.2023.127058] [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: 05/19/2023] [Revised: 08/12/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023]
Abstract
This study synthesized new cellulose-based hydrogels, namely cellulose and cellulose/poly acrylic acid, using cellulose extracted from rice straw via alkaline and acidic pulping processes. The research demonstrated alkaline treatment with sodium hydroxide to be more effective for cellulose extraction compared to acidic treatment. Hydrogel synthesis used graft polymerization and chemical crosslinking with potassium persulfate as initiator and epichlorohydrin as a crosslinker. Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TG), and scanning electron microscopy (SEM) characterized the prepared hydrogels. Important factors determining hydrogel competence are swelling ratio and water retention rate. The cellulose hydrogel exhibited the highest swelling ratio in tap water (9811%) with 76.25 wt% water retention and in artificial hard water (3121.43%) with 64.58 wt% retention after 4 days outdoors at 298 K. Finally, hydrogels were investigated extensively for agricultural applications. Fenugreek seeds germinated and grew well (67% germination after 7 days) in normal soil mixed with 10% cellulose hydrogel. Biodegradability testing exhibited 6% degradation after 40 days and 10% after 120 days in an open-air lab at room temperature and 60% humidity.
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Affiliation(s)
- Ghada Kadry
- Chemical Engineering Department, The Higher Institute of Engineering, El Shorouk Academy, Cairo, Egypt.
| | - Heba A El-Gawad
- Engineering Mathematics and Physics Department, The Higher Institute of Engineering, El Shorouk Academy, Cairo, Egypt.
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13
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Jiao Y, Su T, Chen Y, Long M, Luo X, Xie X, Qin Z. Enhanced Water Absorbency and Water Retention Rate for Superabsorbent Polymer via Porous Calcium Carbonate Crosslinking. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2575. [PMID: 37764604 PMCID: PMC10536887 DOI: 10.3390/nano13182575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/10/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
To improve the water absorbency and water-retention rate of superabsorbent materials, a porous calcium carbonate composite superabsorbent polymer (PCC/PAA) was prepared by copolymerization of acrylic acid and porous calcium carbonate prepared from ground calcium carbonate. The results showed that the binding energies of C-O and C=O in the O 1s profile of PCC/PAA had 0.2 eV and 0.1-0.7 eV redshifts, respectively, and the bonding of -COO- groups on the surface of the porous calcium carbonate led to an increase in the binding energy of O 1s. Furthermore, the porous calcium carbonate chelates with the -COO- group in acrylic acid through the surface Ca2+ site to form multidirectional crosslinking points, which would increase the flexibility of the crosslinking network and promote the formation of pores inside the PCC/PAA to improve the water storage space. The water absorbency of PCC/PAA with 2 wt% porous calcium carbonate in deionized water and 0.9 wt% NaCl water solution increased from 540 g/g and 60 g/g to 935 g/g and 80 g/g, respectively. In addition, since the chemical crosslinker N,N'-methylene bisacrylamide is used in the polymerization process of PCC/PAA, N,N'-methylene bisacrylamide and porous calcium carbonate enhance the stability of the PCC/PAA crosslinking network by double-crosslinking with a polyacrylic acid chain, resulting in the crosslinking network of PCC/PAA not being destroyed after water absorption saturation. Therefore, PCC/PAA with 2 wt% porous calcium carbonate improved the water-retention rate by 244% after 5 h at 60 °C, and the compressive strength was approximately five-times that of the superabsorbent without porous calcium carbonate.
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Affiliation(s)
- Yixin Jiao
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (Y.J.); (T.S.); (X.L.); (X.X.)
| | - Tongming Su
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (Y.J.); (T.S.); (X.L.); (X.X.)
| | - Yongmei Chen
- Guilin Zhuorui Food Ingredients Co., Ltd., Guilin 541001, China; (Y.C.); (M.L.)
| | - Minggui Long
- Guilin Zhuorui Food Ingredients Co., Ltd., Guilin 541001, China; (Y.C.); (M.L.)
| | - Xuan Luo
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (Y.J.); (T.S.); (X.L.); (X.X.)
| | - Xinling Xie
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (Y.J.); (T.S.); (X.L.); (X.X.)
| | - Zuzeng Qin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (Y.J.); (T.S.); (X.L.); (X.X.)
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14
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Nemati Mahand S, Jahanmardi R, Kruppke B, Khonakdar HA. Sciatic nerve injury regeneration in adult male rats using gelatin methacrylate (GelMA)/poly(2-ethy-2-oxazoline) (PEtOx) hydrogel containing 4-aminopyridine (4-AP). J Biomed Mater Res A 2023; 111:1243-1252. [PMID: 36808867 DOI: 10.1002/jbm.a.37514] [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: 05/29/2022] [Revised: 01/02/2023] [Accepted: 02/06/2023] [Indexed: 02/22/2023]
Abstract
One of the most important parts of the body is the peripheral nervous system, and any injuries in this system may result in potentially lethal consequences or severe side effects. The peripheral nervous system may not rehabilitate the harmed regions following disabling disorders, which reduce the quality of life of patients. Fortunately, in recent years, hydrogels have been proposed as exogenous alternatives to bridge damaged nerve stumps to create a useful microenvironment for advancing nerve recovery. However, hydrogel-based medicine in the therapy of peripheral nerve injury still needs a lot of improvement. In this study, GelMA/PEtOx hydrogel was used for the first time to deliver 4-Aminopyridine (4-AP) small molecules. 4-AP is a broad-spectrum potassium channel blocker, which has been demonstrated to increase neuromuscular function in patients with various demyelinating disorders. The prepared hydrogel showed a porosity of 92.2 ± 2.6% after 20 min, swelling ratio of 456.01 ± 2.0% after 180 min, weight loss of 81.7 ± 3.1% after 2 weeks, and good blood compatibility as well as sustainable drug release. MTT analysis was performed to assess the cell viability of the hydrogel and proved that the hydrogel is an appropriate substrate for the survival of cells. In vivo studies were performed for functional analysis and the sciatic functional index (SFI) as well as hot plate latency results showed that the use of GelMA/PEtOx+4-AP hydrogel enhances the regeneration compared to the GelMA/PEtOx hydrogel and the control group.
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Affiliation(s)
- Saba Nemati Mahand
- Department of Polymer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Reza Jahanmardi
- Department of Polymer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Benjamin Kruppke
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Dresden, Germany
| | - Hossein Ali Khonakdar
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Dresden, Germany
- Department of Polymer Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
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15
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Craciun G, Calina IC, Demeter M, Scarisoreanu A, Dumitru M, Manaila E. Poly(Acrylic Acid)-Sodium Alginate Superabsorbent Hydrogels Synthesized by Electron Beam Irradiation Part I: Impact of Initiator Concentration and Irradiation Dose on Structure, Network Parameters and Swelling Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4552. [PMID: 37444866 DOI: 10.3390/ma16134552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
In the present paper, hydrogels based on acrylic acid (20%), sodium alginate (0.5%) and poly(ethylene oxide) (0.1%) were obtained by electron beam irradiation at room temperature with doses between 5 and 20 kGy, using potassium persulfate in concentrations up to 0.3% as a reaction initiator. The influence of initiator concentration and irradiation dose on hydrogel network parameters, swelling and deswelling behavior, gelation and degradation points, structure and morphology were investigated. Cross-link density increased with the irradiation dose and initiator addition, except at 20 kGy. The gel fraction was over 87.0% in all cases. Swelling experiments in distilled water showed swelling degrees of 40,000% at an irradiation dose of 5 kGy when a concentration of 0.1% initiator was added. A relationship between the swelling degree and irradiation dose, cross-linking degree (that increases from 0.044 × 102 to 0.995 × 102 mol/cm3) and mesh size (that decreases from about 220 nm to 26 nm) was observed. The addition of only 0.1% of PP led to the obtaining of hydrogels with a swelling degree of 42,954% (about 430 g/g) at an irradiation dose of 5 kGy and of 7206% (about 62 g/g) at 20 kGy, which are higher percentages than those obtained in the same irradiation conditions but without PP.
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Affiliation(s)
- Gabriela Craciun
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Ion Cosmin Calina
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Maria Demeter
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Anca Scarisoreanu
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Marius Dumitru
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
| | - Elena Manaila
- Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania
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16
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Luo J, Liu W, Xie Q, He J, Jiang L. Synthesis and characterisation of a novel poly(2-hydroxyethylmethacrylate)-chitosan hydrogels loaded cerium oxide nanocomposites dressing on cutaneous wound healing on nursing care of chronic wound. IET Nanobiotechnol 2023. [PMID: 37312282 DOI: 10.1049/nbt2.12118] [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: 11/01/2022] [Revised: 01/14/2023] [Accepted: 02/06/2023] [Indexed: 06/15/2023] Open
Abstract
This study was designed to establish the composition of wound dressing based on poly(2-hydroxyethylmethacrylate)-chitosan (PHEM-CS) hydrogels-loaded cerium oxide nanoparticle (CeONPs) composites for cutaneous wound healing on nursing care of the chronic wound. The as-synthesised PHEM-CS/CeONPs hydrogels nanocomposites were characterised by using UV-visible spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermo gravimetric analysis. The influence of PHEM-CS/CeONPs hydrogels nanocomposites on the gelation time, swelling ratio, in vitro degradation, and mechanical properties was investigated. The as-prepared PHEM-CS/CeONPs hydrogels nanocomposites dressing shows high antimicrobial activity against Staphylococcus aureus and Escherichia coli. Similar trends were observed for the treatment of biofilms where PHEM-CS/CeONPs hydrogels nanocomposites displayed better efficiency. Furthermore, the biological properties of PHEM-CS/CeONPs hydrogels nanocomposites had non-toxic in cell viability and excellent cell adhesion behaviour. After 2 weeks, the wounds treated with the PHEM-CS/CeONPs hydrogels nanocomposite wound dressing achieved a significant closure to 98.5 ± 4.95% compared with the PHEM-CS hydrogels with nearly 71 ± 3.55% of wound closure. Hence, this study strongly supports the possibility of using this novel PHEM-CS/CeONPs hydrogels nanocomposites wound dressing for efficient cutaneous wound healing on chronic wound infection and nursing care.
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Affiliation(s)
- Jingna Luo
- Department of Nursing, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Weijun Liu
- Department of Consumable Reagent, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Qiaoling Xie
- Department of Nephrology, The First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Jianshu He
- Department of Nephrology, The First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Liyan Jiang
- Department of Orthopedic Surgery, ChengDu Fifth People's Hospital, Chengdu, Sichuan, China
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17
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Jahan N, Ibne Mahbub MS, Lee BT, Bae SH. In Vivo and In Vitro Investigation of a Novel Gelatin/Sodium Polyacrylate Composite Hemostatic Sponge for Topical Bleeding. J Funct Biomater 2023; 14:jfb14050265. [PMID: 37233375 DOI: 10.3390/jfb14050265] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/02/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023] Open
Abstract
Designing a functional and efficient blood-clotting agent is a major challenge. In this research, hemostatic scaffolds (GSp) were prepared from the superabsorbent, inter-crosslinked polymer sodium polyacrylate (Sp) bound to a natural protein gelatin (G) loaded with thrombin (Th) by a cost-effective freeze-drying method. Five compositions were grafted (GSp0.0, Gsp0.1, GSp0.2, GSp0.3, GSp0.3-Th) where the concentration of Sp varied but the ratios of G remained the same. The fundamental physical characteristics that increased the amounts of Sp with G gave synergistic effects after interacting with thrombin. Due to the presence of superabsorbent polymer (SAP) swelling capacities in GSp0.3 and GSp0.3-Th surge forward 6265% and 6948%, respectively. Pore sizes became uniform and larger (ranging ≤ 300 μm) and well-interconnected. The water-contact angle declined in GSp0.3 and GSp0.3-Th to 75.73 ± 1.097 and 75.33 ± 0.8342 degrees, respectively, thus increasing hydrophilicity. The pH difference was found to be insignificant as well. In addition, an evaluation of the scaffold in in vitro biocompatibility with the L929 cell line showed cell viability >80%, so the samples were nontoxic and produced a favorable environment for cell proliferation. The composite GSp0.3-Th revealed the lowest HR (%) (2.601%), and the in vivo blood-clotting time (s) and blood loss (gm) supported hemostasis. Overall, the results showed that a novel GSp0.3-Th scaffold can be a potential candidate as a hemostatic agent.
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Affiliation(s)
- Nusrat Jahan
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Md Sowaib Ibne Mahbub
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan 31151, Republic of Korea
- Institute of Tissue Regeneration, Soonchunhyang University, Cheonan 31151, Republic of Korea
| | - Sang Ho Bae
- Department of Surgery, Soonchunhyang University Cheonan Hospital, Cheonan 31151, Republic of Korea
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18
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Ahmad NN, Ghazali NNN, Abdul Rani AT, Othman MH, Kee CC, Jiwanti PK, Rodríguez-Gómez A, Wong YH. Finger-Actuated Micropump of Constant Flow Rate without Backflow. MICROMACHINES 2023; 14:881. [PMID: 37421113 DOI: 10.3390/mi14040881] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/15/2023] [Accepted: 04/16/2023] [Indexed: 07/09/2023]
Abstract
This paper presents a finger-actuated micropump with a consistent flow rate and no backflow. The fluid dynamics in interstitial fluid (ISF) extraction microfluidics are studied through analytical, simulation, and experimental methods. Head losses, pressure drop, diodocity, hydrogel swelling, criteria for hydrogel absorption, and consistency flow rate are examined in order to access microfluidic performance. In terms of consistency, the experimental result revealed that after 20 s of duty cycles with full deformation on the flexible diaphragm, the output pressure became uniform and the flow rate remained at nearly constant levels of 2.2 μL/min. The flow rate discrepancy between the experimental and predicted flow rates is around 22%. In terms of diodicity, when the serpentine microchannel and hydrogel-assisted reservoir are added to the microfluidic system integration, the diodicity increases by 2% (Di = 1.48) and 34% (Di = 1.96), respectively, compared to when the Tesla integration (Di = 1.45) is used alone. A visual and experimentally weighted analysis finds no signs of backflow. These significant flow characteristics demonstrate their potential usage in many low-cost and portable microfluidic applications.
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Affiliation(s)
- NurFarrahain Nadia Ahmad
- Department of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Federal Territory, Malaysia
- School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Nik Nazri Nik Ghazali
- Department of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Federal Territory, Malaysia
| | - Ahmad Taufiq Abdul Rani
- Industrial and Mechanical Design, Faculty of Engineering, German-Malaysian Institute, Jalan Ilmiah, Taman Universiti, Kajang 43000, Selangor, Malaysia
| | - Mohammad Hafiz Othman
- Department of Process & Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Chia Ching Kee
- Centre for Advance Materials and Intelligent Manufacturing, Faculty of Engineering, Built Environment & Information Technology, SEGi University, Petaling Jaya 47810, Selangor, Malaysia
| | - Prastika Krisma Jiwanti
- Nanotechnology Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Arturo Rodríguez-Gómez
- Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica s/n, Ciudad Universitaria, A.P. 20-364, Coyoacán, Ciudad de México 04510, Mexico
| | - Yew Hoong Wong
- Department of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Federal Territory, Malaysia
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19
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Singh A, Muduli C, Senanayak SP, Goswami L. Graphite nanopowder incorporated xanthan gum scaffold for effective bone tissue regeneration purposes with improved biomineralization. Int J Biol Macromol 2023; 234:123724. [PMID: 36801298 DOI: 10.1016/j.ijbiomac.2023.123724] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
In the current work, biomaterial composed of Xanthan gum and Diethylene glycol dimethacrylate with impregnation of graphite nanopowder filler in their matrices was fabricated successfully for their potential usage in the engineering of bone defects. Various physicochemical properties associated with the biomaterial were characterized using FTIR, XRD, TGA, SEM etc. The biomaterial rheological studies imparted the better notable properties associated with the inclusion of graphite nanopowder. The biomaterial synthesized exhibited a controlled drug release. Adhesion and proliferation of different secondary cell lines do not generate ROS on the current biomaterial and thus show its biocompatibility and non-toxic nature. The synthesized biomaterial's osteogenic potential on SaOS-2 cells was supported by increased ALP activity, enhanced differentiation and biomineralization under osteoinductive circumstances. The current biomaterial demonstrates that in addition to the drug-delivery applications, it can also be a cost-effective substrate for cellular activities and has all the necessary properties to be considered as a promising alternative material suitable for repairing and restoring bone tissues. We propose that this biomaterial may have commercial importance in the biomedical field.
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Affiliation(s)
- Abhishek Singh
- School of Biotechnology, KIIT Deemed to be University, Patia, Bhubaneswar 751024, India
| | - Chinmayee Muduli
- ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar 751002, India
| | - Satyaprasad P Senanayak
- Nanoelectronics and Device Physics Lab, School of Physical Science, National Institute of Science Education and Research, An OCC of HBNI, Jatni 752050, India
| | - Luna Goswami
- School of Biotechnology, KIIT Deemed to be University, Patia, Bhubaneswar 751024, India; School of Chemical Technology, KIIT Deemed to be University, Patia, Bhubaneswar 751024, India.
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20
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Abbasi M, Sohail M, Minhas MU, Mahmood A, Shah SA, Munir A, Kashif MUR. Folic acid-decorated alginate nanoparticles loaded hydrogel for the oral delivery of diferourylmethane in colorectal cancer. Int J Biol Macromol 2023; 233:123585. [PMID: 36758757 DOI: 10.1016/j.ijbiomac.2023.123585] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/25/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
The disease-related suffering in colorectal cancer remains prevalent despite advancements in the field of drug delivery. Chemotherapy-related side effects and non-specificity remain a challenge in drug delivery. The great majority of hydrophobic drugs cannot be successfully delivered to the colon orally mainly due to poor solubility, low bioavailability, pH differences, and food interactions. Polymeric nanoparticles are potential drug delivery candidates but there are numerous limitations to their usefulness in colon cancer. The nanoparticles are removed from the body rapidly by p-glycoprotein efflux, inactivation, or breakdown by enzymes limiting their efficiency. Furthermore, there is a lack of selectivity in targeting cancer cells; nanoparticles may also target healthy cells, resulting in toxicity and adverse effects. The study aimed to use nanoparticles for specific targeting of the colorectal tumor cells via the oral route of administration without adverse effects. Folic acid (FA), a cancer-targeting ligand possessing a high affinity for folate receptors overexpressed in colorectal cancers was conjugated to sodium alginate- nanoparticles by NH2-linkage. The folic-acid conjugated nanoparticles (FNPs) were delivered to the colon by a pH-sensitive hydrogel synthesized by the free radical polymerization method to provide sustained drug release. The developed system referred to as the "Hydrogel-Nano (HN) drug delivery system," was specifically capable of delivering diferourylmethane to the colon. The HN system was characterized by DLS, FTIR, XRD, TGA, DSC, and SEM. The FNPs size, polydispersity index, and zeta potential were measured. The folic acid-conjugation to nanoparticles' surface was studied by UV-visible spectroscopy using Beer-Lambert's law. In-vitro studies, including sol-gel, porosity, drug loading, entrapment efficiency, etc., revealed promising results. The swelling and release studies showed pH-dependent release of the drug in colonic pH 7.4. Cellular uptake and cytotoxicity studies performed on FR-overexpressed Hela cell lines and FR-negative A-549 cell lines showed facilitated uptake of nanoparticles by folate receptors. A threefold increase in Cmax and prolongation of the mean residence time (MRT) to 14.52 +/- 0.217 h indicated sustained drug release by the HN system. The findings of the study can provide a sufficient ground that the synergistic approach of the HN system can deliver hydrophobic drugs to colorectal cancer cells via the oral route, but further in-vivo animal cancer model studies are required.
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Affiliation(s)
- Mudassir Abbasi
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan; Faculty of Pharmacy, Cyprus International University, Nicosia, 99258, North Cyprus.
| | | | - Arshad Mahmood
- Collage of Pharmacy, Al Ain University, Abu Dhabi, United Arab Emirates; AAU Health and Biomedical Research Center, Al Ain University, Abu Dhabi, United Arab Emirates
| | - Syed Ahmed Shah
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan; Department of Pharmaceutical Sciences, The Superior University, Lahore 54600, Pakistan
| | - Abubakar Munir
- Department of Pharmaceutical Sciences, The Superior University, Lahore 54600, Pakistan
| | - Mehboob-Ur-Rehman Kashif
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
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21
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Hu Z, Liu D, Wang M, Yu C, Han Z, Xu M, Yue W, Nie G. β-Alanine enhancing the crosslink of chitosan/poly-(γ-glutamic acid) hydrogel for a potential alkaline-adapted wound dressing. Int J Biol Macromol 2023; 231:123157. [PMID: 36649867 DOI: 10.1016/j.ijbiomac.2023.123157] [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: 11/05/2022] [Revised: 12/23/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023]
Abstract
Tiny crosslink in chitosan (CS)/poly-(γ-glutamic acid) (γ-PGA) hydrogel leads to some disadvantages including low mechanical strength and high swelling. To enhance the crosslink of CS/γ-PGA hydrogel, amino acid (AA) was introduced to remove the drawbacks. The results indicated that AA can dramatically increase the crosslink and mechanical properties of CS/γ-PGA hydrogel, and AA chain length and concentration have a drastic effect on them. Particularly, 0.5 % β-Alanine (β-Ala) decreased the hydrogel by 70 % in porosity, 52 % in water solubility, and 30 % in swelling, but increased by 2.2-fold in elastic modulus, 2.08-fold in stress, and 1.53-fold in water retention. The porosity of the hydrogel correlates positively with the elastic modulus but negatively with the crosslinking degree. The effect of pH on CS/β-Ala/γ-PGA hydrogel was investigated in the load and release of benzalkonium chlorides (BAC). β-Ala strengthened pH response of the hydrogel in BAC load and release. The loading capacity increased with pH value, and 0.5 % β-Ala increased the hydrogel by 1.25-fold in the release capacity in alkaline environment, suggesting a good buffering effect of β-Ala on pH variation to accelerate the transportation of BAC. CS/β-Ala/γ-PGA hydrogel will be competently applied as a potential material for wound dressing in alkaline environment.
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Affiliation(s)
- Ziwei Hu
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Dandan Liu
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Mengmeng Wang
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Chenrui Yu
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Zhenxing Han
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Maodong Xu
- School of chemical and environmental engineering, Anhui Polytechnic University, 241000 Wuhu, China
| | - Wenjin Yue
- School of chemical and environmental engineering, Anhui Polytechnic University, 241000 Wuhu, China.
| | - Guangjun Nie
- College of biological and food engineering, Anhui Polytechnic University, 241000 Wuhu, China.
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22
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Cerdá-Bernad D, Pitterou I, Tzani A, Detsi A, Frutos MJ. "Novel chitosan/alginate hydrogels as carriers of phenolic-enriched extracts from saffron floral by-products using natural deep eutectic solvents as green extraction media". Curr Res Food Sci 2023; 6:100469. [PMID: 36926417 PMCID: PMC10011189 DOI: 10.1016/j.crfs.2023.100469] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 02/27/2023] Open
Abstract
The current saffron production system is generating several hundreds of tons of tepal waste, because only stigmas are used for food. Consequently, the valorization of saffron floral by-products by developing stable functional ingredients could lead to the environmental impact minimization. Thus, the main aim of this study was to develop innovative green extraction processes from saffron floral by-products by using Natural Deep Eutectic Solvents (NaDES) and ultrasound-assisted extraction (UAE) as ecological extraction method. Response surface methodology was used to optimize process parameters. To improve the stability of the optimal extracts, they were incorporated into chitosan/alginate hydrogels, studying their water-uptake and water retention capacity and the total phenolic content (TPC) during the in vitro digestion. The results indicated that the optimal extraction, regarding total phenolic and flavonoid content, was achieved in 20 min, using 180 W ultrasound power and 90% of NaDES. The results of the DPPH assay revealed the potent antioxidant activity of saffron floral by-products. The chitosan/alginate hydrogels incorporating the as-obtained NaDES extracts showed favorable properties whereas the TPC remained stable under intestinal conditions. Therefore, NaDES combined with UAE was an efficient technique to isolate high added-value compounds from saffron flowers, succeeding also the valorization of discarded waste by using green and low-cost strategies. Furthermore, these novel hydrogels could be used as promising candidates for food or cosmetic applications.
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Affiliation(s)
- Débora Cerdá-Bernad
- Agro-Food Technology Department, CIAGRO-UMH, Centro de Investigación e Innovación Agroalimentaria y Agroambiental, Miguel Hernández University, 03312, Orihuela, Spain
| | - Ioanna Pitterou
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
| | - Andromachi Tzani
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
| | - María José Frutos
- Agro-Food Technology Department, CIAGRO-UMH, Centro de Investigación e Innovación Agroalimentaria y Agroambiental, Miguel Hernández University, 03312, Orihuela, Spain
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23
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Naeem A, Yu C, Zhu W, Chen X, Wu X, Chen L, Zang Z, Guan Y. Gallic Acid-Loaded Sodium Alginate-Based (Polyvinyl Alcohol-Co-Acrylic Acid) Hydrogel Membranes for Cutaneous Wound Healing: Synthesis and Characterization. Molecules 2022; 27:molecules27238397. [PMID: 36500491 PMCID: PMC9736476 DOI: 10.3390/molecules27238397] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Traditional wound dressings often cannot treat wounds caused by bacterial infections or other wound types that are insensitive to these wound treatments. Therefore, a biodegradable, bioactive hydrogel wound dressing could be an effective alternative option. The purpose of this study was to develop a hydrogel membrane comprised of sodium alginate, polyvinyl alcohol, acrylic acid, and gallic acid for treating skin wounds. The newly developed membranes were analyzed using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), sol-gel fraction, porosity, mechanical strength, swelling, drug release and data modelling, polymeric network parameters, biodegradation, and antioxidation (DPPH and ABTS) and antimicrobial activity against Gram-positive and negative bacteria. The results revealed that hydrogel membranes were crosslinked successfully and had excellent thermal stability, high drug loading, greater mechanical strength, and exhibited excellent biodegradation. Additionally, the swelling ability and the porosity of the surface facilitated a controlled release of the encapsulated drug (gallic acid), with 70.34% release observed at pH 1.2, 70.10% at pH 5.5 (normal skin pH), and 86.24% at pH 7.4 (wounds pH) in 48 h. The gallic acid-loaded hydrogel membranes showed a greater area of inhibition against Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli bacteria as well as demonstrated excellent antioxidant properties. Based on Franz cell analyses, the permeation flux of the drug from optimized formulations through mice skin was 92 (pH 5.5) and 110 (pH 7.4) μg/cm2·h-1. Moreover, hydrogel membranes retained significant amounts of drug in the skin for 24 h, such as 2371 (pH 5.5) and 3300 µg/cm2 (pH 7.4). Acute dermal irritation tests in rats showed that hydrogel membranes were nonirritating. Hydrogel membranes containing gallic acid could be an effective option for improving wound healing and could result in faster wound healing.
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24
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Gao Y, Cho HJ. Quantifying the trade-off between stiffness and permeability in hydrogels. SOFT MATTER 2022; 18:7735-7740. [PMID: 36205349 DOI: 10.1039/d2sm01215d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Hydrogels have a distinct combination of mechanical and water-transport behaviors. As hydrogels stiffen when they de-swell, they become less permeable. Here, we combine de Gennes' semi-dilute polymer theory with the Kozeny-Carman equation to develop a simple, succinct scaling law describing the relationship between mechanical stiffness and hydraulic permeability where permeability scales with stiffness to the -8/9 power. We find a remarkably close agreement between the scaling law and experimental results across four different polymer families with varied crosslinkings. This inverse relationship establishes a fundamental trade-off between permeability and stiffness.
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Affiliation(s)
- Yiwei Gao
- Department of Mechanical Engineering, University of Nevada, Las Vegas, Las Vegas, NV 89154, USA.
| | - H Jeremy Cho
- Department of Mechanical Engineering, University of Nevada, Las Vegas, Las Vegas, NV 89154, USA.
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25
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Sequentially sustained release of anticarcinogens for postsurgical chemoimmunotherapy. J Control Release 2022; 350:803-814. [PMID: 36087802 DOI: 10.1016/j.jconrel.2022.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 08/15/2022] [Accepted: 09/03/2022] [Indexed: 12/14/2022]
Abstract
Postsurgical treatment is of great importance to combat tumor recurrence and metastasis. Anti-CD47 antibodies (aCD47) can block the CD47-signal regulatory protein-alpha (CD47-SIRPα) pathway to restore immunity. Here, an in-situ gel implantation was engineered by crosslinking chitosan (CS) and pullulan (Pul) for postsurgical treatment. A highly selected chemotherapeutic, cyclopamine (Cyc), encapsulated in liposomes (Cyc-Lip) was co-loaded with aCD47 in gels for chemoimmunotherapy. Importantly, a sequential drug release kinetics can be achieved. Nanotherapeutics were confirmed to be released prior to aCD47 in a burst-release manner, which was benefit for immediately killing residual tumor cells followed by releasing tumor antigens. Meanwhile, aCD47 was released in a sustained-release manner to restore macrophage functions and exert anti-tumor immune responses. Afterwards, the efficacy of in-situ chemoimmunotherapy was confirmed on 4T1 mouse breast cancer models, which could not only efficiently augment anti-tumor effect to inhibit tumor recurrence but also establish a long-term immune memory to combat tumor metastasis.
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26
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Gel properties transition from mono-succinylation to cross-linking of agar by attemperation with succinic anhydride. Food Chem 2022; 381:132164. [DOI: 10.1016/j.foodchem.2022.132164] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 01/04/2022] [Accepted: 01/13/2022] [Indexed: 11/24/2022]
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27
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Çakmak E, Koc-Bilican B, Avila-Poveda OH, Karaduman T, Cansaran-Duman D, Williams ST, Kaya M. Discovery of protein-based natural hydrogel from the girdle of the 'sea cockroach' Chiton articulatus (Chitonida: Chitonidae). PeerJ 2022; 10:e13386. [PMID: 35573172 PMCID: PMC9097651 DOI: 10.7717/peerj.13386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/15/2022] [Indexed: 01/14/2023] Open
Abstract
Hydrogels are widely used materials in biomedical, pharmaceutical, cosmetic, and agricultural fields. However, these hydrogels are usually formed synthetically via a long and complicated process involving crosslinking natural polymers. Herein, we describe a natural hydrogel isolated using a 'gentle' acid treatment from the girdle of a chiton species (Chiton articulatus). This novel hydrogel is shown to have a proliferative effect on mouse fibroblast cells (cell line, L929). The swelling capacity of this natural hydrogel was recorded as approximately 1,200% in distilled water, which is within desired levels for hydrogels. Detailed characterizations reveal that the hydrogel consists predominantly (83.93%) of protein. Considering its non-toxicity, proliferative effect and swelling properties, this natural hydrogel is an important discovery for material sciences, with potential for further applications in industry. Whether the girdle has some hydrogel activity in the living animal is unknown, but we speculate that it may enable the animal to better survive extreme environmental conditions by preventing desiccation.
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Affiliation(s)
- Emel Çakmak
- Vegetable and Animal Production, Güzelyurt Vocational School, Aksaray University, Aksaray, Turkey,Science and Technology Application and Research Center, ASUBTAM - Aksaray University, Aksaray, Turkey
| | - Behlül Koc-Bilican
- Science and Technology Application and Research Center, ASUBTAM - Aksaray University, Aksaray, Turkey,Molecular Biology and Genetics, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey
| | - Omar Hernando Avila-Poveda
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Mazatlán, Sinaloa, México,Programa Investigadoras e Investigadores por Mexico, Consejo Nacional de Ciencia y Tecnología, Ciudad de México, México,Proyecto Quitón del Pacífico Tropical Mexicano, Mazatlán, Sinaloa, México
| | - Tuğçe Karaduman
- Science and Technology Application and Research Center, ASUBTAM - Aksaray University, Aksaray, Turkey,Molecular Biology and Genetics, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey
| | | | - Suzanne T. Williams
- Department of Life Sciences, Natural History Museum, London, Cromwell Road, United Kingdom
| | - Murat Kaya
- Science and Technology Application and Research Center, ASUBTAM - Aksaray University, Aksaray, Turkey,Molecular Biology and Genetics, Faculty of Science and Letters, Aksaray University, Aksaray, Turkey
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28
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Abbasi M, Sohail M, Minhas MU, Iqbal J, Mahmood A, Shaikh AJ. Folic acid-functionalized nanoparticles-laden biomaterials for the improved oral delivery of hydrophobic drug in colorectal cancer. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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29
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Boon-In S, Theerasilp M, Crespy D. Marrying the incompatible for better: Incorporation of hydrophobic payloads in superhydrophilic hydrogels. J Colloid Interface Sci 2022; 622:75-86. [PMID: 35489103 DOI: 10.1016/j.jcis.2022.04.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 01/31/2023]
Abstract
HYPOTHESIS The entrapment of lyophobic in superhydrophilic hydrogels is challenging because of the intrinsic incompatibility between hydrophobic and hydrophilic molecules. To achieve such entrapment without affecting the hydrogel's formation, the electrospinning of nanodroplets or nanoparticles with a water-soluble polymer could reduce the incompatibility through the reduction of interfacial tension and the formation of a barrier film preventing coalescence or aggregation. EXPERIMENTS Nanodroplets or nanoparticles dispersion are electrospun in the presence of a hydrophilic polymer in hydrogel precursors. The dissolution of the hydrophilic nanofibers during electrospinning allows a redispersion of emulsion droplets and nanoparticles in the hydrogel's matrix. FINDINGS Superhydrophilic hydrogels with well-distributed hydrophobic nanodroplets or nanoparticles are obtained without detrimentally imparting the viscosity of hydrogel's precursors and the mechanical properties of the hydrogels. Compared with the incorporation of droplets without electrospinning, higher loadings of hydrophobic payload are achieved without premature leakage. This concept can be used to entrap hydrophobic agrochemicals, drugs, or antibacterial agents in simple hydrogels formulation.
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Affiliation(s)
- Supissra Boon-In
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand.
| | - Man Theerasilp
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand.
| | - Daniel Crespy
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand.
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30
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Hu T, Chan C, Lin M, Bu H, Liu B, Jiang G. COCu: A Robust Self-Regenerative Hydrogel with Applicability as Both Hydrated Gel Dressing and Dry Suture for Seamless Tissue Fixation and Repair. Adv Healthc Mater 2022; 11:e2102074. [PMID: 34913606 DOI: 10.1002/adhm.202102074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/25/2021] [Indexed: 01/13/2023]
Abstract
Self-regenerative hydrogels have recently been developed, and represent a special type of self-healing hydrogels with the ability to restore a dehydrated hydrogel with physical damage. In this study, a self-regenerative hydrogel (COCu) based on two chitosan polymers assembled by slow-released Cu2+ is developed. The COCu hydrogel displays an excellent regeneration ability after being dehydrated and fractured. By simple hydration at room temperature, the fragments of the dehydrated gel fuse into one seamless whole, thereby preserving the mechanical properties and functionalities of the original hydrogel. The regeneration process can be conducted repeatedly after different methods of dehydration (natural volatilization, heat drying, lyophilization) and various modes of deconstruction (flakes, powder, lumpy sponge, etc.). Furthermore, the COCu hydrogel provides ultra-stretchability, and it can be stretched into thin (0.01-0.1 mm) filaments, which, when dried (dtCOCu), can be used as suture lines. Moreover, when used as a dry suture, it regenerates into the hydrogel in the presence of the tissue fluid, forming an excellent sealant to immobilize tissues and seamlessly seal wounds. The fast self-regeneration allows for its facile application as both a hydrated gel dressing and dry suture, and offers customized strategies for fixing and repair of different wounds in soft tissues.
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Affiliation(s)
- Tian Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 China
| | - Chuncheung Chan
- Department of Spine Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou 510630 China
| | - Min‐Zhao Lin
- Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 China
| | - Huaitian Bu
- Department of Materials and Nanotechnology SINTEF Industry Forskningsveien 1 Oslo 0373 Norway
| | - Bin Liu
- Department of Spine Surgery The Third Affiliated Hospital of Sun Yat‐sen University Guangzhou 510630 China
| | - Gang‐Biao Jiang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 China
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31
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Spiridon I, Apostol I, Anghel NC, Zaltariov MF. Equilibrium, kinetic and thermodynamic studies of new materials based on xanthan gum and cobalt ferrite for dye adsorption. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iuliana Spiridon
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Vodă Alley 41A Iași Romania
| | - Irina Apostol
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Vodă Alley 41A Iași Romania
| | - Narcis Cătălin Anghel
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica–Vodă Alley 41A Iași Romania
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32
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Ye S, Zhang Y, Chen J, Chen F, Weng H, Xiao Q, Xiao A. Synthesis and properties of maleic anhydride-modified agar with reversibly controlled gel strength. Int J Biol Macromol 2022; 201:364-377. [PMID: 34998880 DOI: 10.1016/j.ijbiomac.2021.12.096] [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: 10/08/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 11/26/2022]
Abstract
Agar is modified by chemical methods to improve its functional properties and meet the increasing demand of the market. Some of the functional properties of agar are improved after chemical modification, while other properties are reduced, especially gel strength. This study aimed to comprehensively improve the functional properties of agar through acylation and crosslinking by reacting with maleic anhydride. 13C NMR indicated the maleylation reaction was preferred at the C2 hydroxyl group of D-galactose, and the crosslinking reactions occurred at the C2 and C6 hydroxyl groups of D-galactose in different agar chains. Interestingly, the maleylated agar monoester had higher gel transparency (1.5%, w/v) of up to 76% than the native agar (58%). However, it showed a significant decrease in gel strength from 783 g/cm2 to 403 g/cm2, while crosslinking endowed agar with higher gel strength (845 g/cm2) and gel transparency (78.4%). The high transparency of the modified agar plate made colony observation and colony counting easy. Maleylation of agar further enhanced the freeze-thaw stability of agar gel (24.8%, 7th freeze-thaw cycles). Overall, the maleylated agar possessed superior functional properties, and it could be used as food, bacteriological, and biotechnological agar.
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Affiliation(s)
- Siying Ye
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China
| | - Yonghui Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Jun Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Fuquan Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China
| | - Huifen Weng
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China
| | - Qiong Xiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China.
| | - Anfeng Xiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China.
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33
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Bagal-Kestwal DR, Chiang BH. Tamarindus indica seed-shell nanoparticles‑silver nanoparticles-Ceratonia silique bean gum composite for copper-micro mesh grid electrode fabrication and its application for glucose detection in artificial salivary samples. Int J Biol Macromol 2021; 189:993-1007. [PMID: 34455001 DOI: 10.1016/j.ijbiomac.2021.08.148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022]
Abstract
This study used a new approach to fabricate a glucose detection system based on nano-engineered biomaterials. The fabrication steps included strategic synthesis, integration and stabilization of biological and metal nanoparticles in superabsorbent hydrogel gum matrix. The design of the high-performance electrochemical biosensor platform includes copper-micro mesh grid electrode modified with polymer phase comprising of silver nanoparticles surface coroneted with Ceratonia silique locust bean gum (LBG), Tamarindus indica seed-shell nanoparticles and glucose oxidase (GOx). Fundamental assessment of catalytic properties of the nanobiocomposite films on copper grid probe were performed by cyclic voltammetry, amperometry, differential pulse voltammetry. Probes showed good repeatability, reproducibility, selectivity, and long-term stability. The GOx was well-immobilized and stabilized by C. siliqua nano-matrix, with 85% and 98% activity retention when stored at different condiions for 6 month and 3 months, respectively. The fabricated grid-platform exhibited linear response in a wide range of glucose concentration, with detection limit of 1.0 nM (S/N = 3) and sensitivity 38.7 mA nM-1 cm-2. The bionanomaterial-based sensor was successfully applied for ultra-low glucose detection in artificial salivary samples. The designed sensor, perhaps with further modifications, has potential for the next generation of sensing platform in various biological fluids especially for non-invasive glucose detection for diabetic patients.
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Affiliation(s)
- Dipali R Bagal-Kestwal
- Institute of Food Science and Technology, National Taiwan University, No.1, Roosevelt Road, section 4, Taipei, Taiwan, ROC.
| | - Been-Huang Chiang
- Institute of Food Science and Technology, National Taiwan University, No.1, Roosevelt Road, section 4, Taipei, Taiwan, ROC.
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34
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Shaheen A, Maswal M, Dar AA. Synergistic effect of various metal ions on the mechanical, thixotropic, self-healing, swelling and water retention properties of bimetallic hydrogels of alginate. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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35
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Renewable Mixed Hydrogels Based on Polysaccharide and Protein for Release of Agrochemicals and Soil Conditioning. SUSTAINABILITY 2021. [DOI: 10.3390/su131810439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The study deals with the combination of biopolymers to develop hydrogels intended for agriculture application. The aim is to propose a renewable and eco-compatible solution to enhance agrochemicals and water efficiency and contribute to maintaining soil fertility. We developed a set of hydrogels based on casein and chitosan for water retention and release of agrochemicals, in particular nitrogen fertilizer urea. The weight ratio of biopolymers, from 0.5 to 2, was investigated to understand the influence of their content on the morphology, swelling, swelling-drying cycles, and water retention in soil. The average content of urea in the hydrogels was 30% of the total weight, and up to 80% was released in the soil in 50 days. The biodegradation of the hydrogels in soil has been investigated by the burial method and monitoring the release of CO2. Results demonstrated that by increasing the content of chitosan, the biodegradation time is prolonged up to 20% in 90 days. The obtained results support the ultimate purpose of the work that the combination of two biopolymers at proper weight ratio could be a valid alternative of the marketed hydrogels with the final goal to promote soil fertility and water retention and prolong biodegradation.
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36
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Ghasemi S, Abareshi H. Swelling behavior of super‐absorbent lipophilic polyelectrolytes based on poly(lauryl acrylate‐
co
‐styrene) comprised quaternary ammonium compounds with tetrafluoroborate anion in organic solvents. NANO SELECT 2021. [DOI: 10.1002/nano.202100068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
| | - Habib Abareshi
- Department of Chemistry Shiraz University Shiraz 7194684795 I.R. Iran
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Sun F, Li R, Jin F, Zhang H, Zhang J, Wang T, Feng ZQ. Dopamine/zinc oxide doped poly( N-hydroxyethyl acrylamide)/agar dual network hydrogel with super self-healing, antibacterial and tissue adhesion functions designed for transdermal patch. J Mater Chem B 2021; 9:5492-5502. [PMID: 34161410 DOI: 10.1039/d1tb00822f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual network (DN) hydrogels with excellent mechanical strength and controllable component adjustment characteristics have a broad application range in the field of biomedicine. However, the tissue adhesion, skin affinity, self-healing, and antibacterial properties of DN hydrogels are inadequate for their application as skin patches. In this work, we prepared dopamine/zinc oxide (DOPA/ZnO) doped poly(N-hydroxyethyl acrylamide) (p(HEAA))/agar DN hydrogels and combined them to obtain a bilayer hydrogel (two-layer gel) with moisturizing properties. Upon incorporating 0.86 wt% of dopamine (DOPA), the resultant DOPA/p(HEAA))/agar DN hydrogel (DOPA@DNG) exhibited high tensile strain (up to 1600%), excellent self-repair ability, and tissue adhesion. ZnO/p(HEAA))/agar DN hydrogel (ZnO NG) obtained by incorporating 2 w/v ZnO nanoparticles (ZnO NPs) achieved high tensile strength (1.2 MPa), good antibacterial ability, and low charge transfer resistance. Moreover, ZnO NG, which has a tight structure, was employed as a protective layer for the two-layer gel, which can effectively slow down the excessive evaporation of water to protect the DOPA@DNG stability as a skin patch. Evidence showed that the two-layer hydrogel has water retention. Water retention still remains at over 50% after keeping the hydrogel in air for 3 days. These properties mean the two-layer gel based on the DOPA/ZnO doped DN hydrogels could be used as a transdermal patch for numerous applications in drug delivery, wearable devices, and electronic skin.
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Affiliation(s)
- Fengyu Sun
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Rui Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Fei Jin
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Haiyang Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Jin Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
| | - Ting Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, P. R. China
| | - Zhang-Qi Feng
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
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38
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Jozaghkar MR, Sepehrian Azar A, Ziaee F. Preparation, Characterization, and swelling study of N,N’-dimethylacrylamide/acrylic acid amphiphilic hydrogels in different conditions. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03760-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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39
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Poly(carboxybetaine methacrylate) grafted on PVA hydrogel via a novel surface modification method under near-infrared light for enhancement of antifouling properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126369] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Facile preparation of agar/polyvinyl alcohol-based triple-network composite hydrogels with excellent mechanical performances. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126270] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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41
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Karoyo AH, Wilson LD. A Review on the Design and Hydration Properties of Natural Polymer-Based Hydrogels. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1095. [PMID: 33652859 PMCID: PMC7956345 DOI: 10.3390/ma14051095] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/07/2021] [Accepted: 02/17/2021] [Indexed: 01/02/2023]
Abstract
Hydrogels are hydrophilic 3D networks that are able to ingest large amounts of water or biological fluids, and are potential candidates for biosensors, drug delivery vectors, energy harvester devices, and carriers or matrices for cells in tissue engineering. Natural polymers, e.g., cellulose, chitosan and starch, have excellent properties that afford fabrication of advanced hydrogel materials for biomedical applications: biodegradability, biocompatibility, non-toxicity, hydrophilicity, thermal and chemical stability, and the high capacity for swelling induced by facile synthetic modification, among other physicochemical properties. Hydrogels require variable time to reach an equilibrium swelling due to the variable diffusion rates of water sorption, capillary action, and other modalities. In this study, the nature, transport kinetics, and the role of water in the formation and structural stability of various types of hydrogels comprised of natural polymers are reviewed. Since water is an integral part of hydrogels that constitute a substantive portion of its composition, there is a need to obtain an improved understanding of the role of hydration in the structure, degree of swelling and the mechanical stability of such biomaterial hydrogels. The capacity of the polymer chains to swell in an aqueous solvent can be expressed by the rubber elasticity theory and other thermodynamic contributions; whereas the rate of water diffusion can be driven either by concentration gradient or chemical potential. An overview of fabrication strategies for various types of hydrogels is presented as well as their responsiveness to external stimuli, along with their potential utility in diverse and novel applications. This review aims to shed light on the role of hydration to the structure and function of hydrogels. In turn, this review will further contribute to the development of advanced materials, such as "injectable hydrogels" and super-adsorbents for applications in the field of environmental science and biomedicine.
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Affiliation(s)
| | - Lee D. Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada;
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42
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Cao L, Li N. Activated-carbon-filled agarose hydrogel as a natural medium for seed germination and seedling growth. Int J Biol Macromol 2021; 177:383-391. [PMID: 33617906 DOI: 10.1016/j.ijbiomac.2021.02.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/01/2021] [Accepted: 02/13/2021] [Indexed: 02/06/2023]
Abstract
An activated-carbon-filled agarose (Agar-AC) hydrogel containing various concentrations of activated carbon (AC) was successfully fabricated through a simple solvent cast technique. Compared to pure agarose hydrogels, Agar-AC hydrogels exhibited excellent mechanical properties, good thermal stability and a highly developed pore structure. The Agar-AC hydrogels also showed a certain degree of improvement in water retention performance, while their swelling ratio decreased with the addition of AC. The incorporation of AC did not influence the crystallinity of the agarose hydrogel, and no chemical modification occurred according to XRD and FTIR. In rapeseed seed germination experiments, the growth indexes of rapeseed, including the germination percentage, root length, stem length, fresh weight and dry weight, were enhanced by the incorporation of a suitable amount of AC. These results indicated that AC has great potential to enhance the properties of agarose hydrogels and improve seed germination and plant growth, which implies that Agar-AC hydrogels can be used as natural materials for agricultural applications.
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Affiliation(s)
- Lu Cao
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China
| | - Na Li
- Suzhou Key Laboratory of Green Chemical Engineering, School of Chemical and Environmental Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China.
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43
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Chen M, Shen Y, Xu L, Xiang G, Ni Z. Synthesis of a super-absorbent nanocomposite hydrogel based on vinyl hybrid silica nanospheres and its properties. RSC Adv 2020; 10:41022-41031. [PMID: 35519214 PMCID: PMC9057712 DOI: 10.1039/d0ra07074b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/05/2020] [Indexed: 11/29/2022] Open
Abstract
Superabsorbent polymers as soft materials that can absorb water have aroused great interest in the fields of agriculture and forestry. Water absorption and water retention performance of a hydrogel are important indicators to evaluate its practical application. However, few reports show that hydrogels have both excellent water absorption and water retention properties. To date, superabsorbent hydrogels with a swelling capacity of more than 3000 g g−1 have rarely been reported. In this work, a novel superabsorbent poly(acrylic acid) (PAA)-based nanocomposite hydrogel (NC gel) was prepared via free radical polymerization of acrylic acid by using vinyl hybrid silica nanospheres (VSNPs) as the cross-linking agent. The PAA NC hydrogel achieved a great swelling ratio of more than 5000 times in deionized water at 323 K, and the swollen hydrogel could hold 60% moisture when it was exposed to the air at 303 K for 42 h. Moreover, the hydrogel also obtained a good swelling ratio of 136 g g−1 in NaCl solution. The PAA NC hydrogel showed excellent repetitive swelling ability. The influences of variable factors (acrylic acid, initiator and sodium hydroxide) on the swelling ratio of the NC hydrogel were researched. It can be speculated that the PAA NC hydrogel has potential application in agriculture and forestry areas due to its excellent water absorption and water retention properties. Superabsorbent polymers as soft materials that can absorb water have aroused great interest in the fields of agriculture and forestry.![]()
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Affiliation(s)
- Mingyang Chen
- School of Textile and Clothing, Shanghai University of Engineering Science Shanghai 201620 PR China +86-21-67791242
| | - Yong Shen
- School of Textile and Clothing, Shanghai University of Engineering Science Shanghai 201620 PR China +86-21-67791242
| | - Lihui Xu
- School of Textile and Clothing, Shanghai University of Engineering Science Shanghai 201620 PR China +86-21-67791242
| | - Guanghong Xiang
- School of Textile and Clothing, Shanghai University of Engineering Science Shanghai 201620 PR China +86-21-67791242
| | - Zhewei Ni
- School of Textile and Clothing, Shanghai University of Engineering Science Shanghai 201620 PR China +86-21-67791242
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44
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Fabrication and characterization of a starch-based superabsorbent hydrogel composite reinforced with cellulose nanocrystals from potato peel waste. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124962] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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45
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Lv Q, Shen Y, Qiu Y, Wu M, Wang L. Poly(acrylic acid)/poly(acrylamide) hydrogel adsorbent for removing methylene blue. J Appl Polym Sci 2020. [DOI: 10.1002/app.49322] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Qingyun Lv
- College of FashionShanghai University of Engineering Science Shanghai People's Republic of China
| | - Yong Shen
- College of FashionShanghai University of Engineering Science Shanghai People's Republic of China
| | - Yu Qiu
- College of FashionShanghai University of Engineering Science Shanghai People's Republic of China
| | - Min Wu
- College of FashionShanghai University of Engineering Science Shanghai People's Republic of China
| | - Liming Wang
- College of FashionShanghai University of Engineering Science Shanghai People's Republic of China
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46
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Comprehensive Assessment of Nile Tilapia Skin ( Oreochromis niloticus) Collagen Hydrogels for Wound Dressings. Mar Drugs 2020; 18:md18040178. [PMID: 32218368 PMCID: PMC7230254 DOI: 10.3390/md18040178] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/17/2020] [Accepted: 03/23/2020] [Indexed: 12/14/2022] Open
Abstract
Collagen plays an important role in the formation of extracellular matrix (ECM) and development/migration of cells and tissues. Here we report the preparation of collagen and collagen hydrogel from the skin of tilapia and an evaluation of their potential as a wound dressing for the treatment of refractory wounds. The acid-soluble collagen (ASC) and pepsin-soluble collagen (PSC) were extracted and characterized using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE), differential scanning calorimetry (DSC), circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR) analysis. Both ASC and PSC belong to type I collagen and have a complete triple helix structure, but PSC shows lower molecular weight and thermal stability, and has the inherent low antigenicity. Therefore, PSC was selected to prepare biomedical hydrogels using its self-aggregating properties. Rheological characterization showed that the mechanical strength of the hydrogels increased as the PSC content increased. Scanning electron microscope (SEM) analysis indicated that hydrogels could form a regular network structure at a suitable PSC content. Cytotoxicity experiments confirmed that hydrogels with different PSC content showed no significant toxicity to fibroblasts. Skin repair experiments and pathological analysis showed that the collagen hydrogels wound dressing could significantly accelerate the healing of deep second-degree burn wounds and the generation of new skin appendages, which can be used for treatment of various refractory wounds.
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