1
|
Bercea M. Recent Advances in Poly(vinyl alcohol)-Based Hydrogels. Polymers (Basel) 2024; 16:2021. [PMID: 39065336 PMCID: PMC11281164 DOI: 10.3390/polym16142021] [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: 06/02/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Poly(vinyl alcohol) (PVA) is a versatile synthetic polymer, used for the design of hydrogels, porous membranes and films. Its solubility in water, film- and hydrogel-forming capabilities, non-toxicity, crystallinity and excellent mechanical properties, chemical inertness and stability towards biological fluids, superior oxygen and gas barrier properties, good printability and availability (relatively low production cost) are the main aspects that make PVA suitable for a variety of applications, from biomedical and pharmaceutical uses to sensing devices, packaging materials or wastewater treatment. However, pure PVA materials present low stability in water, limited flexibility and poor biocompatibility and biodegradability, which restrict its use alone in various applications. PVA mixed with other synthetic polymers or biomolecules (polysaccharides, proteins, peptides, amino acids etc.), as well as with inorganic/organic compounds, generates a wide variety of materials in which PVA's shortcomings are considerably improved, and new functionalities are obtained. Also, PVA's chemical transformation brings new features and opens the door for new and unexpected uses. The present review is focused on recent advances in PVA-based hydrogels.
Collapse
Affiliation(s)
- Maria Bercea
- "Petru Poni" Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| |
Collapse
|
2
|
Zicarelli G, Faggio C, Blahova J, Riesova B, Hesova R, Doubkova V, Svobodova Z, Lakdawala P. Toxicity of water-soluble polymers polyethylene glycol and polyvinyl alcohol for fish and frog embryos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:173154. [PMID: 38735322 DOI: 10.1016/j.scitotenv.2024.173154] [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: 02/06/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Personal Care Products (PCPs) have been one of the most studied chemicals in the last twenty years since they were identified as pseudo-persistent pollutants by the European Union in the early 2000s. The accumulation of PCPs in the aquatic environment and their effects on non-target species make it necessary to find new, less harmful, substances. Polyethylene glycol (PEGs) and polyvinyl alcohol (PVAs) are two polymers that have increased their presence in the composition of PCPs in recent years, but little is known about the effect of their accumulation in the environment on non-target species. Through embryotoxicity tests on two common models of aquatic organisms (Danio rerio and Xenopus laevis), this work aims to increase the knowledge of PEGs and PVAs' effects on non-target species. Animals were exposed to the pollutant for 96 h. The main embryotoxicity endpoint (mortality, hatching, malformations, heartbeat rate) was recorded every 24 h. The most significant results were hatching delay in Danio rerio exposed to both chemicals, in malformations (oedema, body malformations, changes in pigmentation and deformations of spine and tail) in D. rerio and X. laevis and significant change in the heartbeat rate (decrease or increase in the rate) in both animals for all chemicals tested.
Collapse
Affiliation(s)
- Giorgia Zicarelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy; Department of Eco-sustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Naples, Italy.
| | - Jana Blahova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| | - Barbora Riesova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| | - Renata Hesova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| | - Veronika Doubkova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| | - Zdenka Svobodova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| | - Pavla Lakdawala
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic.
| |
Collapse
|
3
|
Jiang C, Chao Y, Xie W, Wu D. Using bacterial cellulose to bridge covalent and physical crosslinks in hydrogels for fabricating multimodal sensors. Int J Biol Macromol 2024; 263:130178. [PMID: 38368981 DOI: 10.1016/j.ijbiomac.2024.130178] [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: 10/19/2023] [Revised: 01/16/2024] [Accepted: 02/12/2024] [Indexed: 02/20/2024]
Abstract
Network optimization is vital for the polysaccharide based hydrogels with multiple crosslinks. In this study, we developed a 'two-step' strategy to activate synergistic effect of chemical and physical crosslinks using a poly (vinyl alcohol) (PVA)/bacterial cellulose (BC) hydrogel as a template. The BC nanofibers, on the one hand, acted as nucleating agents, participating in the crystallization of PVA, and on the other hand, were also involved in the formation of boronic ester bond, anchored with the PVA chains via chemical bonding. Therefore, the existence of BC nanofibers, as 'bridge', linked the crystalline regions and amorphous parts of PVA together, associating the two characteristic crosslinks, which was conducive to load transfer. The mechanical properties of resultant hydrogels, including the tensile elongation and strength, as well as fracture toughness, were significantly improved. Moreover, the dually cross-linked hydrogels possessed ionic conductivity, which was sensitive to the tensile deformation and environmental temperature. This study clarifies a unique role of BC nanofibers in hydrogels, and proposes an effective approach to construct multiple networks in the nanocellulose reinforced PVA hydrogels.
Collapse
Affiliation(s)
- Chenguang Jiang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Yuchen Chao
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Wenyuan Xie
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China; Institute for Innovative Materials & Energy, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China.
| | - Defeng Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China; Provincial Key Laboratories of Environmental Materials & Engineering, Yangzhou, Jiangsu Province 225002, PR China.
| |
Collapse
|
4
|
Guo X, Li J, Wu Y, Xu L. Recent advancements in hydrogels as novel tissue engineering scaffolds for dental pulp regeneration. Int J Biol Macromol 2024; 264:130708. [PMID: 38460622 DOI: 10.1016/j.ijbiomac.2024.130708] [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: 12/07/2023] [Revised: 02/22/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
Although conventional root canal treatment offers an effective therapeutic solution, it negatively affects the viability of the affected tooth. In recent years, pulp regeneration technology has emerged as a novel method for treating irreversible pulpitis due to its ability to maintain tooth vitality. The successful implementation of this technique depends on scaffolds and transplantation of exogenous stem cells or recruitment of endogenous stem cells. Accordingly, the three-dimensional structure and viscoelastic characteristics of hydrogel scaffolds, which parallel those of the extracellular matrix, have generated considerable interest. Furthermore, hydrogels support the controlled release of regenerative drugs and to load a wide variety of bioactive molecules. By integrating antibacterial agents into the hydrogel matrix and stimulating an immune response, root canal disinfection can be significantly improved and the rate of pulp regeneration can be accelerated. This review aims to provide an overview of the clinical applications of hydrogels that have been reported in the last 5 years, and offer a comprehensive summary of the different approaches that have been utilized for the optimization of hydrogel scaffolds for pulp regeneration. Advancements and challenges in pulp regeneration using hydrogels treating aged teeth are discussed.
Collapse
Affiliation(s)
- Xiaofei Guo
- Xiangya Shool of Stomatology, Central South University, Changsha, Hunan, China
| | - Jiaxuan Li
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410083, China
| | - Yong Wu
- Department of Nephrology, The Second Xiangya Hospital, Key Laboratory of Kidney Disease and Blood Purification, Central South University, Changsha, Hunan, China
| | - Laijun Xu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China; School of Stomatology, Changsha Medical University, Changsha, Hunan 410219, China.
| |
Collapse
|
5
|
Kolosova OY, Vasil'ev VG, Novikov IA, Sorokina EV, Lozinsky VI. Cryostructuring of Polymeric Systems: 67 Properties and Microstructure of Poly(Vinyl Alcohol) Cryogels Formed in the Presence of Phenol or Bis-Phenols Introduced into the Aqueous Polymeric Solutions Prior to Their Freeze-Thaw Processing. Polymers (Basel) 2024; 16:675. [PMID: 38475358 DOI: 10.3390/polym16050675] [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: 01/31/2024] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Poly(vinyl alcohol) (PVA) physical cryogels that contained the additives of o-, m-, and p-bis-phenols or phenol were prepared, and their physico-chemical characteristics and macroporous morphology and the solute release dynamics were evaluated. These phenolic additives caused changes in the viscosity of initial PVA solutions before their freeze-thaw processing and facilitated the growth in the rigidity of the resultant cryogels, while their heat endurance decreased. The magnitude of the effects depended on the interposition of phenolic hydroxyls in the molecules of the used additives and was stipulated by their H-bonding with PVA OH-groups. Subsequent rinsing of such "primary" cryogels with pure water led to the lowering of their rigidity. The average size of macropores inside these heterophase gels also depended on the additive type. It was found also that the release of phenolic substances from the additive-containing cryogels occurred via virtually a free diffusion mechanism; therefore, drug delivery systems such as PVA cryogels loaded with either pyrocatechol, resorcinol, hydroquinone, or phenol, upon the in vitro agar diffusion tests, exhibited antibacterial activity typical of these phenols. The promising biomedical potential of the studied nanocomposite gel materials is supposed.
Collapse
Affiliation(s)
- Olga Yu Kolosova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
| | - Viktor G Vasil'ev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
| | - Ivan A Novikov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov Street 38, 119991 Moscow, Russia
| | - Elena V Sorokina
- Microbilogy Department, Biology Faculty, M. V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladimir I Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
- Microbiology Department, Kazan (Volga-Region) Federal University, 420008 Kazan, Russia
| |
Collapse
|
6
|
Sugiura Y, Yamada E, Horie M. Fabrication of hydrophilic polymer-hybrid octacalcium phosphate blocks under wet condition based on cement setting reactions. J Mech Behav Biomed Mater 2023; 148:106226. [PMID: 37952506 DOI: 10.1016/j.jmbbm.2023.106226] [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: 09/22/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/14/2023]
Abstract
Bioceramics, while offering excellent biocompatibility, are often compromised by their fragility and brittleness, especially under wet conditions. Even though recent hybrid processes combining biocompatible polymers and bioceramics have shown promise, complete mitigation of these challenges remains elusive. In this research, a biomimetic process was employed to mimic the structure of biological bone tissue. This led to the development of block materials composed of octacalcium phosphate (OCP) and sodium polyacrylic acid (PAA-Na) that display flexibility and resilience in wet conditions. Adjusting the PAA-Na concentration enabled the OCP-PAA-Na blocks to demonstrate superior mechanical strength when dry and increased flexibility when wet. Notably, these blocks expanded in aqueous solutions while preserving their structure, making them ideal for oral surgeries by preventing issues like blood flooding from implanted areas.
Collapse
Affiliation(s)
- Yuki Sugiura
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, 761-0395, Japan; Research Planning Office, Headquarter of Department of Life and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, Ibaragi, 305-8560, Japan.
| | - Etsuko Yamada
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, 761-0395, Japan
| | - Masanori Horie
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, 761-0395, Japan
| |
Collapse
|
7
|
Park KW, Chun JW, Yang SW, Park SJ, Jeong DE, Koh JW. Cellular toxicity profile of a new ophthalmic sponge. Cutan Ocul Toxicol 2023; 42:283-291. [PMID: 37675483 DOI: 10.1080/15569527.2023.2253472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
Introduction: Ophthalmic sponges are used for cleaning the eye surface and absorbing fluids during ophthalmic procedures. This study compared the biological safety and stability of a new ophthalmic sponge, Occucell® (OccuTech Inc, Seongnam, Korea), on the human conjunctival epithelial cells with those of preexisting products to evaluate its clinical application.Materials and Methods: The cytotoxicity of four products, Occucell, a new product, Ultracell®, Eyetec-1, and Eyetec-2, on conjunctival epithelial cells, was evaluated using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) analysis. Additionally, human conjunctival epithelial cells were stained with a Live & Dead marker and observed using a fluorescence microscope. To evaluate the effect of the ophthalmic sponges on the secretion of IL-1β and TNF-α, cultured conjunctival epithelial cells were treated with 0.5% DMSO eluates of the ophthalmic sponges, and IL-1β and TNF-α mRNA levels were estimated using real-time polymerase chain reaction assays.Results: Cells treated with Occucell showed comparable viability to those treated with other preexisting products. Conjunctival epithelial cells showed more than 90% viability when treated with the ophthalmic sponge extracts, as determined by the MTT assay. No significant differences in the number of live & dead cells were observed between the control and treatment groups. Cells treated with all four ophthalmic sponge eluates showed similar IL-1β and TNF-α mRNA levels.Discussion: Occucell, an eye sponge used during ophthalmic surgery in clinical practice, did not affect the viability of conjunctival epithelial cells, and more than 90% of the cells were viable after the treatment. Further, Occucell showed similar effects on IL-1β and TNF-α secretion as that of other ophthalmic sponges used in the clinic. This suggested that Occucell is a safe product comparable to the preexisting products.
Collapse
Affiliation(s)
- Keon Woo Park
- Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Ji Woong Chun
- Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Seong Won Yang
- Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Seon Joo Park
- Department of Premedical Science, Chosun University College of Medicine, Gwangju, Republic of Korea
- Ophthalmic and Optic Medical Device Globalization Team (Ministry of Trade, Industry, and Energy), Chosun University, Gwangju, Republic of Korea
| | | | - Jae Woong Koh
- Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea
- Ophthalmic and Optic Medical Device Globalization Team (Ministry of Trade, Industry, and Energy), Chosun University, Gwangju, Republic of Korea
| |
Collapse
|
8
|
Gamboa J, Paulo-Mirasol S, Estrany F, Torras J. Recent Progress in Biomedical Sensors Based on Conducting Polymer Hydrogels. ACS APPLIED BIO MATERIALS 2023; 6:1720-1741. [PMID: 37115912 DOI: 10.1021/acsabm.3c00139] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Biosensors are increasingly taking a more active role in health science. The current needs for the constant monitoring of biomedical signals, as well as the growing spending on public health, make it necessary to search for materials with a combination of properties such as biocompatibility, electroactivity, resorption, and high selectivity to certain bioanalytes. Conducting polymer hydrogels seem to be a very promising materials, since they present many of the necessary properties to be used as biosensors. Furthermore, their properties can be shaped and enhanced by designing conductive polymer hydrogel-based composites with more specific functionalities depending on the end application. This work will review the recent state of the art of different biological hydrogels for biosensor applications, discuss the properties of the different components alone and in combination, and reveal their high potential as candidate materials in the fabrication of all-organic diagnostic, wearable, and implantable sensor devices.
Collapse
Affiliation(s)
- Jillian Gamboa
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, Barcelona 08019, Spain
| | - Sofia Paulo-Mirasol
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, Barcelona 08019, Spain
| | - Francesc Estrany
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, Barcelona 08019, Spain
| | - Juan Torras
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, Barcelona 08019, Spain
| |
Collapse
|
9
|
Agbaria M, Jbara-Agbaria D, Grad E, Ben-David-Naim M, Aizik G, Golomb G. Nanoparticles of VAV1 siRNA combined with LL37 peptide for the treatment of pancreatic cancer. J Control Release 2023; 355:312-326. [PMID: 36736910 DOI: 10.1016/j.jconrel.2023.01.084] [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: 11/16/2022] [Revised: 01/10/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the leading causes of cancer-related death, and it is highly resistant to therapy owing to its unique extracellular matrix. VAV1 protein, overexpressed in several cancer diseases including pancreatic cancer (PC), increases tumor proliferation and enhances metastases formation, which are associated with decreased survival. We hypothesized that an additive anti-tumor effect could be obtained by co-encapsulating in PLGA nanoparticles (NPs), the negatively charged siRNA against VAV1 (siVAV1) with the positively charged anti-tumor LL37 peptide, as a counter-ion. Several types of NPs were formulated and were characterized for their physicochemical properties, cellular internalization, and bioactivity in vitro. NPs' biodistribution, toxicity, and bioactivity were examined in a mice PDAC model. An optimal siVAV1 formulation (siVAV1-LL37 NPs) was characterized with desirable physicochemical properties in terms of nano-size, low polydispersity index (PDI), neutral surface charge, high siVAV1 encapsulation efficiency, spherical shape, and long-term shelf-life stability. Cell assays demonstrated rapid engulfment by PC cells, a specific and significant dose-dependent proliferation inhibition, as well as knockdown of VAV1 mRNA levels and migration inhibition in VAV1+ cells. Treatment with siVAV1-LL37 NPs in the mice PDAC model revealed marked accumulation of NPs in the liver and in the tumor, resulting in an increased survival rate following suppression of tumor growth and metastases, mediated via the knockdown of both VAV1 mRNA and protein levels. This proof-of-concept study validates our hypothesis of an additive effect in the treatment of PC facilitated by co-encapsulating siVAV1 in NPs with LL37 serving a dual role as a counter ion as well as an anti-tumor agent.
Collapse
Affiliation(s)
- Majd Agbaria
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Doaa Jbara-Agbaria
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Etty Grad
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Meital Ben-David-Naim
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Gil Aizik
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Gershon Golomb
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel; The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| |
Collapse
|
10
|
Reisi-Vanani V, Hosseini S, Soleiman-Dehkordi E, Sahand Noaien B, Farzan M, Ebani VV, Gholipourmalekabadi M, Lozano K, Lorigooini Z. Engineering of a core-shell polyvinyl alcohol/gelatin fibrous scaffold for dual delivery of Thymus daenensis essential oil and Glycyrrhiza glabra L. extract as an antibacterial and functional wound dressing. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
|
11
|
Kolosova OY, Shaikhaliev AI, Krasnov MS, Bondar IM, Sidorskii EV, Sorokina EV, Lozinsky VI. Cryostructuring of Polymeric Systems: 64. Preparation and Properties of Poly(vinyl alcohol)-Based Cryogels Loaded with Antimicrobial Drugs and Assessment of the Potential of Such Gel Materials to Perform as Gel Implants for the Treatment of Infected Wounds. Gels 2023; 9:gels9020113. [PMID: 36826283 PMCID: PMC9956285 DOI: 10.3390/gels9020113] [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: 01/16/2023] [Revised: 01/26/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Physical macroporous poly(vinyl alcohol)-based cryogels formed by the freeze-thaw technique without the use of any foreign cross-linkers are of significant interests for biomedical applications. In the present study, such gel materials loaded with the antimicrobial substances were prepared and their physicochemical properties were evaluated followed by an assessment of their potential to serve as drug carriers that can be used as implants for the treatment of infected wounds. The antibiotic Ceftriaxone and the antimycotic Fluconazole were used as antimicrobial agents. It was shown that the Ceftriaxone additives caused the up-swelling effects with respect to the cryogel matrix and some decrease in its heat endurance but did not result in a substantial change in the gel strength. With that, the drug release from the cryogel vehicle occurred without any diffusion restrictions, which was demonstrated by both the spectrophotometric recording and the microbiological agar diffusion technique. In turn, the in vivo biotesting of such drug-loaded cryogels also showed that these materials were able to function as rather efficient antimicrobial implants injected in the artificially infected model wounds of laboratory rabbits. These results confirmed the promising biomedical potential of similar implants.
Collapse
Affiliation(s)
- Olga Yu. Kolosova
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
| | - Astemir I. Shaikhaliev
- Institute of Dentistry, I.M.Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Mikhail S. Krasnov
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
| | - Ivan M. Bondar
- Institute of Dentistry, I.M.Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Egor V. Sidorskii
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
| | - Elena V. Sorokina
- Microbiology Department, Biology Faculty, M.V.Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladimir I. Lozinsky
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, Bld. 1, 119334 Moscow, Russia
- Microbiology Department, Kazan (Volga-Region) Federal University, 420008 Kazan, Russia
- Correspondence: ; Tel.: +7-499-135-6492
| |
Collapse
|
12
|
Wu J, Wu X, Yang F, Liu X, Meng F, Ma Q, Che Y. Multiply cross-linked poly(vinyl alcohol)/cellulose nanofiber composite ionic conductive hydrogels for strain sensors. Int J Biol Macromol 2023; 225:1119-1128. [PMID: 36414077 DOI: 10.1016/j.ijbiomac.2022.11.173] [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: 09/12/2022] [Revised: 10/08/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Building multiple chemical crosslinks is an effective strategy to improve mechanical properties and to diversify final application of polysaccharide nanoparticles reinforced poly(vinyl alcohol) (PVA) physical hydrogels. In this work, PVA/cellulose nanofibers (CNFs) were used as composite substrate to fabricate ionic conductive hydrogels for strain sensor. Three types of characteristic crosslinks, including chemical crosslinking via boronic ester covalent bonds only, and with additional metal coordination bonding, as well as coexistence of physical crosslinks via PVA crystallites and aforementioned two kinds of chemical crosslinks, were constructed. The sample with triple crosslinks has superior mechanical strength and resistance to fatigue, and the polydopamine/Fe3+ ratio act as key to tune final performance because double-network structure prefers to form as Fe3+ is superfluous, while dual-crosslink one forms in the case of insufficient Fe3+. As-optimized ionic conductive hydrogel is suitable as strain sensor for probing human motions. This work provides an interesting insight into the network structure and property regulation for PVA/CNF composite hydrogels with multiple crosslinks.
Collapse
Affiliation(s)
- Jianzhen Wu
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Xiuzhicheng Wu
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Fujian Yang
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Xiaonan Liu
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Fanjun Meng
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Qinglin Ma
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China
| | - Yuju Che
- Marine College, Shandong University (Weihai), Wenhua West Rd., Weihai, Shandong Province, 264209, PR China.
| |
Collapse
|
13
|
Synthesis of Hydrogels and Their Progress in Environmental Remediation and Antimicrobial Application. Gels 2022; 9:gels9010016. [PMID: 36661783 PMCID: PMC9858390 DOI: 10.3390/gels9010016] [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: 11/28/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022] Open
Abstract
As a kind of efficient adsorptive material, hydrogel has a wide application prospect within different fields, owing to its unique 3D network structures composed of polymers. In this paper, different synthetic strategies, crosslinking methods and their corresponding limitations and outstanding contributions of applications in the fields of removing environmental pollutants are reviewed to further provide a prospective view of their applications in water resources sustainability. Furthermore, the applications within the biomedical field, especially in wound dressing, are also reviewed in this paper, mainly due to their unique water retention ability, antibacterial ability, and good biocompatibility. Finally, the development direction of hydrogels in the fields of environmental remediation and biomedicine were summarized and prospected.
Collapse
|
14
|
Ji Y, Catazaro J, Jiang Q, Melvin SJ, Jiang J, Klausen RS. Characterization of Styrene–Vinyl Alcohol Copolymers by CP-MAS NMR Spectroscopy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuyang Ji
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Jonathan Catazaro
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Qifeng Jiang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Sophia J. Melvin
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Jennifer Jiang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| |
Collapse
|
15
|
Zhang W, Wang Y, Wu D. Mapping hierarchical networks of poly(vinyl alcohol)/cellulose nanofiber composite hydrogels via viscoelastic probes. Carbohydr Polym 2022; 288:119372. [PMID: 35450634 DOI: 10.1016/j.carbpol.2022.119372] [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: 01/27/2022] [Revised: 03/03/2022] [Accepted: 03/15/2022] [Indexed: 11/02/2022]
Abstract
Discriminating the roles of different networks in the multiply cross-linked hydrogels is vital to optimize their overall performance. Poly(vinyl alcohol)/cellulose nanofiber composite hydrogels were used as template for the study. Three types of characteristic networks, including chemical network cross-linked with boronic ester bonds, physical network cross-linked with microcrystallites, and coexistence of these two networks, were constructed in the system, and the viscoelastic responses were used to detect the characteristic relaxation behavior of those networks. The physical network is more sensitive to stress-induced deformation, whereas the chemical network more sensitive to strain-induced one. The former has lower level of viscous dissipation and higher level of elastic storage as compared to the latter, and dominates linear viscoelasticity of hydrogels as the two networks coexist. Their synergistic effect can be well defined by the scaling behavior of hysteretic work. This work proposes an interesting method of probing networks in the multiply cross-linked hydrogels.
Collapse
Affiliation(s)
- Wenting Zhang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Yuankun Wang
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China
| | - Defeng Wu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu Province 225002, PR China; Provincial Key Laboratories of Environmental Materials & Engineering, Yangzhou, Jiangsu Province 225002, PR China.
| |
Collapse
|
16
|
Michurov DA, Makhina TK, Siracusa V, Bonartsev AP, Lozinsky VI, Iordanskii AL. Cryo-Structuring of Polymeric Systems. Poly(Vinyl Alcohol)-Based Cryogels Loaded with the Poly(3-hydroxybutyrate) Microbeads and the Evaluation of Such Composites as the Delivery Vehicles for Simvastatin. Polymers (Basel) 2022; 14:polym14112196. [PMID: 35683869 PMCID: PMC9182817 DOI: 10.3390/polym14112196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 02/06/2023] Open
Abstract
Highly porous composite poly(vinyl alcohol) (PVA) cryogels loaded with the poly(3-hydroxybutyrate) (PHB) microbeads containing the drug, simvastatin (SVN), were prepared via cryogenic processing (freezing—storing frozen—defrosting) of the beads’ suspensions in aqueous PVA solution. The rigidity of the resultant composite cryogels increased with increasing the filler content. Optical microscopy of the thin section of such gel matrices revealed macro-porous morphology of both continuous (PVA cryogels) and discrete (PHB-microbeads) phases. Kinetic studies of the SVN release from the drug-loaded microbeads, the non-filled PVA cryogel and the composite material showed that the cryogel-based composite system could potentially serve as a candidate for the long-term therapeutic system for controlled drug delivery. Such PHB-microbeads-containing PVA-cryogel-based composite drug delivery carriers were unknown earlier; their preparation and studies have been performed for the first time.
Collapse
Affiliation(s)
- Dmitrii A. Michurov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia;
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Tatiana K. Makhina
- Research Center of Biotechnology of the Russian Academy of Sciences, 33, Bld. 2 Leninskiy Ave., 119071 Moscow, Russia;
| | - Valentina Siracusa
- Department of Chemical Science (DSC), University of Catania, Viale A. Doria 6, 95125 Catania, Italy
- Correspondence: (V.S.); (V.I.L.)
| | - Anton P. Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Vladimir I. Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia;
- Correspondence: (V.S.); (V.I.L.)
| | - Alexey L. Iordanskii
- N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Kosygin Street, 4, 119991 Moscow, Russia;
| |
Collapse
|
17
|
Wang Y, Liu D, Zhang Y, Fan L, Ren Q, Ma S, Zhang M. Stretchable Temperature-Responsive Multimodal Neuromorphic Electronic Skin with Spontaneous Synaptic Plasticity Recovery. ACS NANO 2022; 16:8283-8293. [PMID: 35451307 DOI: 10.1021/acsnano.2c02089] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Multimodal electronic skin devices capable of detecting multimodal signals provide the possibility for health monitoring. Sensing and memory for temperature and deformation by human skin are of great significance for the perception and monitoring of physiological changes of the human body. Electronic skin is highly expected to have similar functions as human skin. Here, by implementing intrinsically stretchable neuromorphic transistors with mechanoreceptors and thermoreceptors in an array, we have realized stretchable temperature-responsive multimodal neuromorphic electronic skin (STRM-NES) with both sensory and memory functions, in which synaptic plasticity can be modulated by multiple modalities, in situ temperature variations, and stretching deformations. Temperature-responsive functions, spontaneous recovery, and temperature-dependent multitrial learning are proposed. Furthermore, a stretchable temperature neuromorphic array composed of multiple fully functional subcells is demonstrated to identify temperature distributions and variations at different regions and conditions after various strains of skin. The STRM-NES has temperature- and strain-responsive neuromorphic functions, excellent self-healing, and reusable capability, showing similar abilities as human skin to sense, transmit, memory, and recovery from external stimuli. It is expected to facilitate the development of wearable electronics, intelligent robotics, and prosthetic applications.
Collapse
Affiliation(s)
- Yarong Wang
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Dexing Liu
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Yiming Zhang
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Lingchong Fan
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Qinqi Ren
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Shenhui Ma
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| | - Min Zhang
- School of Electronic and Computer Engineering, Peking University, Shenzhen 518055, China
| |
Collapse
|
18
|
Oustadi F, Haghbin Nazarpak M, Mansouri M, Ketabat F. Preparation, characterization, and drug release study of ibuprofen-loaded poly (vinyl alcohol)/poly (vinyl pyrrolidone) bilayer antibacterial membrane. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2020.1798437] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Fereshteh Oustadi
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | | | - Mona Mansouri
- Department of Chemical & Biomolecular Engineering, University of Akron, Akron, OH, USA
| | - Farinaz Ketabat
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| |
Collapse
|
19
|
Hawthorne B, Simmons JK, Stuart B, Tung R, Zamierowski DS, Mellott AJ. Enhancing wound healing dressing development through interdisciplinary collaboration. J Biomed Mater Res B Appl Biomater 2021; 109:1967-1985. [PMID: 34002476 PMCID: PMC8519107 DOI: 10.1002/jbm.b.34861] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/03/2021] [Accepted: 04/30/2021] [Indexed: 12/31/2022]
Abstract
The process of wound healing includes four phases: Hemostasis, inflammation, proliferation, and remodeling. Many wound dressings and technologies have been developed to enhance the body's ability to close wounds and restore the function of damaged tissues. Several advancements in wound healing technology have resulted from innovative experiments by individual scientists or physicians working independently. The interplay between the medical and scientific research fields is vital to translating new discoveries in the lab to treatments at the bedside. Tracing the history of wound dressing development reveals that there is an opportunity for deeper collaboration between multiple disciplines to accelerate the advancement of novel wound healing technologies. In this review, we explore the different types of wound dressings and biomaterials used to treat wounds, and we investigate the role of multidisciplinary collaboration in the development of various wound management technologies to illustrate the benefit of direct collaboration between physicians and scientists.
Collapse
Affiliation(s)
- Briauna Hawthorne
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - J. Kai Simmons
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Braden Stuart
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Robert Tung
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - David S. Zamierowski
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| | - Adam J. Mellott
- Department of Plastic SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
| |
Collapse
|
20
|
Piacentini E, Poerio T, Bazzarelli F, Giorno L. Continuous production of PVA-based hydrogel nanoparticles by membrane nanoprecipitation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
21
|
Kolosova OY, Karelina PA, Vasil'ev VG, Grinberg VY, Kurochkin II, Kurochkin IN, Lozinsky VI. Cryostructuring of polymeric systems. 58. Influence of the H2N-(CH2) -COOH–type amino acid additives on formation, properties, microstructure and drug release behaviour of poly(vinyl alcohol) cryogels. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
22
|
Pereira P, Serra AC, Coelho JF. Vinyl Polymer-based technologies towards the efficient delivery of chemotherapeutic drugs. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101432] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
23
|
Crolla JP, Britton MM, Espino DM, Thomas-Seale LEJ. The dynamic viscoelastic characterisation and magnetic resonance imaging of poly(vinyl alcohol) cryogel: Identifying new attributes and opportunities. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112383. [PMID: 34579902 DOI: 10.1016/j.msec.2021.112383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/28/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
Poly(vinyl alcohol) (PVA) cryogel is a biocompatible, synthetic hydrogel, compatible with magnetic resonance (MR) imaging. It is widely used as a biomaterial in tissue scaffolds and mimics to test various diagnostic techniques. The aim of this study is to characterise the effect of varying PVA concentration, molecular weight (MW) and manufacturing protocol on the viscoelastic mechanical properties and MR T2 relaxation time. Further to this MR imaging (MRI) was investigated as a method to quantify material homogeneity. Cylindrical samples of PVA, of varying MW, concentration and number of freeze thaw cycles (FTCs), were manufactured. Dynamic mechanical analysis was performed to evaluate the storage and loss moduli between frequencies of 0.5 and 10 Hz. MR T2 relaxation maps were imaged using a 7 T MRI instrument. Storage and loss moduli were shown to increase with MW, concentration, or the number of FTCs; with storage modulus ranging from 55 kPa to 912 kPa and loss modulus ranging from 6 kPa to 103 kPa. MR T2 relaxation time was shown to increase linearly with PVA concentration. The qualitative and quantitative heterogeneity of the PVA sample were identified through MR T2 relaxation time maps. Excitingly, PVA demonstrated a composition-dependent casual correlation between the viscoelastic mechanical properties and MR T2 relaxation time. In conclusion, this research thoroughly characterised the viscoelastic mechanical properties of PVA to support its extensive use as a biomaterial, and demonstrated the use of MRI to non-invasively identify sample heterogeneity and to predict the composition-dependent viscoelastic properties of PVA.
Collapse
Affiliation(s)
- J P Crolla
- Dept. of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK.
| | - M M Britton
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - D M Espino
- Dept. of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK
| | - L E J Thomas-Seale
- Dept. of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK
| |
Collapse
|
24
|
Chen T, Brial C, McCarthy M, Warren RF, Maher SA. Synthetic PVA Osteochondral Implants for the Knee Joint: Mechanical Characteristics During Simulated Gait. Am J Sports Med 2021; 49:2933-2941. [PMID: 34347534 PMCID: PMC9092221 DOI: 10.1177/03635465211028566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although polyvinyl alcohol (PVA) implants have been developed and used for the treatment of femoral osteochondral defects, their effect on joint contact mechanics during gait has not been assessed. PURPOSE/HYPOTHESIS The purpose was to quantify the contact mechanics during simulated gait of focal osteochondral femoral defects and synthetic PVA implants (10% and 20% by volume of PVA), with and without porous titanium (pTi) bases. It was hypothesized that PVA implants with a higher polymer content (and thus a higher modulus) combined with a pTi base would significantly improve defect-related knee joint contact mechanics. STUDY DESIGN Controlled laboratory study. METHODS Four cylindrical implants were manufactured: 10% PVA, 20% PVA, and 10% and 20% PVA disks mounted on a pTi base. Devices were implanted into 8 mm-diameter osteochondral defects created on the medial femoral condyles of 7 human cadaveric knees. Knees underwent simulated gait and contact stresses across the tibial plateau were recorded. Contact area, peak contact stress, the sum of stress in 3 regions of interest across the tibial plateau, and the distribution of stresses, as quantified by tracking the weighted center of contact stress throughout gait, were computed for all conditions. RESULTS An osteochondral defect caused a redistribution of contact stress across the plateau during simulated gait. Solid PVA implants did not improve contact mechanics, while the addition of a porous metal base led to significantly improved joint contact mechanics. Implants consisting of a 20% PVA disk mounted on a pTi base significantly improved the majority of contact mechanics parameters relative to the empty defect condition. CONCLUSION The information obtained using our cadaveric test system demonstrated the mechanical consequences of femoral focal osteochondral defects and provides biomechanical support to further pursue the efficacy of high-polymer-content PVA disks attached to a pTi base to improve contact mechanics. CLINICAL RELEVANCE As a range of solutions are explored for the treatment of osteochondral defects, our preclinical cadaveric testing model provides unique biomechanical evidence for the continued investigation of novel solutions for osteochondral defects.
Collapse
Affiliation(s)
- Tony Chen
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
- Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, New York, USA
| | - Caroline Brial
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
| | - Moira McCarthy
- Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, USA
| | - Russell F. Warren
- Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, New York, USA
- Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, USA
| | - Suzanne A. Maher
- Department of Biomechanics, Hospital for Special Surgery, New York, New York, USA
- Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, New York, USA
| |
Collapse
|
25
|
Sayar Dogahe K, Akbari S, Haghighat Kish M. Physico‐mechanical properties of poly (vinyl alcohol), poly (vinyl alcohol)/boric acid, and poly (vinyl alcohol) nanocomposites incorporated with amino‐functionalized and pristine halloysite nanotubes films. J Appl Polym Sci 2021. [DOI: 10.1002/app.51424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kourosh Sayar Dogahe
- Textile Engineering Department School of Materials and Advanced Processes Engineering, Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Somaye Akbari
- Textile Engineering Department School of Materials and Advanced Processes Engineering, Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Mohammad Haghighat Kish
- Textile Engineering Department School of Materials and Advanced Processes Engineering, Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| |
Collapse
|
26
|
Bahadur J, Das A, Kumar S, Prakash J, Sen D, Aswal VK. Polymer-mediated interaction between nanoparticles during hydration and dehydration: a small-angle X-ray scattering study. Phys Chem Chem Phys 2021; 23:14818-14829. [PMID: 34212952 DOI: 10.1039/d1cp00528f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymer-mediated interactions such as DNA-protein binding, protein aggregation, and filler reinforcement in polymers play crucial roles in many important biological and industrial processes. In this work, we report a detailed investigation of interactions between nanoparticles in the presence of high volume fractions of an adsorbing polymer. Small-angle X-ray scattering (SAXS) revealed the existence of a stable gel-like structure in the polymer-nanoparticle dispersion, whereby anchored polymer molecules on nanoparticles acted as bridging centres, while basic interactions between nanoparticles remained repulsive. Time-resolved SAXS measurements showed that the local volume fraction of nanoparticles increased during the drying of the dispersion owing to the shrinkage of the gel-like structure. Further, nanoparticle clusters in the dehydrated composite films showed percolated networks of nanoparticles, except for 5% loading that showed a phase-separated morphology as the volume fraction of nanoparticles remained lower than the percolation threshold. A significant restructuring of nanoparticle clusters occurred upon the hydration of nanocomposite films caused by the expansion of polymer networks induced by hydration forces. Temporal evolution of the volume fraction of nanoparticles during dehydration unveiled three distinct stages similar to the logistic growth function and this was attributed to the evaporation of free, intermediate, and bound water in the different stages. A plausible mechanism was elucidated based on the spring action analogy between anchored polymer chains and nanoparticles during hydration and dehydration processes.
Collapse
Affiliation(s)
- Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Avik Das
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Sugam Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - Jyoti Prakash
- Glass and Advanced Ceramic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India. and Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| |
Collapse
|
27
|
Cortés H, Hernández-Parra H, Bernal-Chávez SA, Prado-Audelo MLD, Caballero-Florán IH, Borbolla-Jiménez FV, González-Torres M, Magaña JJ, Leyva-Gómez G. Non-Ionic Surfactants for Stabilization of Polymeric Nanoparticles for Biomedical Uses. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3197. [PMID: 34200640 PMCID: PMC8226872 DOI: 10.3390/ma14123197] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 12/14/2022]
Abstract
Surfactants are essential in the manufacture of polymeric nanoparticles by emulsion formation methods and to preserve the stability of carriers in liquid media. The deposition of non-ionic surfactants at the interface allows a considerable reduction of the globule of the emulsion with high biocompatibility and the possibility of oscillating the final sizes in a wide nanometric range. Therefore, this review presents an analysis of the three principal non-ionic surfactants utilized in the manufacture of polymeric nanoparticles; polysorbates, poly(vinyl alcohol), and poloxamers. We included a section on general properties and uses and a comprehensive compilation of formulations with each principal non-ionic surfactant. Then, we highlight a section on the interaction of non-ionic surfactants with biological barriers to emphasize that the function of surfactants is not limited to stabilizing the dispersion of nanoparticles and has a broad impact on pharmacokinetics. Finally, the last section corresponds to a recommendation in the experimental approach for choosing a surfactant applying the systematic methodology of Quality by Design.
Collapse
Affiliation(s)
- Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
| | - Héctor Hernández-Parra
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México 07360, Mexico; (H.H.-P.); (I.H.C.-F.)
| | - Sergio A. Bernal-Chávez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - María L. Del Prado-Audelo
- Escuela de Ingeniería y Ciencias, Departamento de Bioingeniería, Tecnológico de Monterrey Campus Ciudad de México, CDMX, Ciudad de México 14380, Mexico;
| | - Isaac H. Caballero-Florán
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México 07360, Mexico; (H.H.-P.); (I.H.C.-F.)
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Fabiola V. Borbolla-Jiménez
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
| | - Maykel González-Torres
- CONACyT-Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico;
| | - Jonathan J. Magaña
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
- Escuela de Ingeniería y Ciencias, Departamento de Bioingeniería, Tecnológico de Monterrey Campus Ciudad de México, CDMX, Ciudad de México 14380, Mexico;
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| |
Collapse
|
28
|
Caprioli M, Roppolo I, Chiappone A, Larush L, Pirri CF, Magdassi S. 3D-printed self-healing hydrogels via Digital Light Processing. Nat Commun 2021; 12:2462. [PMID: 33911075 PMCID: PMC8080574 DOI: 10.1038/s41467-021-22802-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 03/25/2021] [Indexed: 01/17/2023] Open
Abstract
Self-healing hydrogels may mimic the behavior of living tissues, which can autonomously repair minor damages, and therefore have a high potential for application in biomedicine. So far, such hydrogels have been processed only via extrusion-based additive manufacturing technology, limited in freedom of design and resolution. Herein, we present 3D-printed hydrogel with self-healing ability, fabricated using only commercially available materials and a commercial Digital Light Processing printer. These hydrogels are based on a semi-interpenetrated polymeric network, enabling self-repair of the printed objects. The autonomous restoration occurs rapidly, at room temperature, and without any external trigger. After rejoining, the samples can withstand deformation and recovered 72% of their initial strength after 12 hours. The proposed approach enables 3D printing of self-healing hydrogels objects with complex architecture, paving the way for future applications in diverse fields, ranging from soft robotics to energy storage.
Collapse
Affiliation(s)
- Matteo Caprioli
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel
| | - Ignazio Roppolo
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy.
| | - Annalisa Chiappone
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Liraz Larush
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel
| | - Candido Fabrizio Pirri
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
- Istituto Italiano di Tecnologia, Center for Sustainable Future Technologies, Turin, Italy
| | - Shlomo Magdassi
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel.
| |
Collapse
|
29
|
Filova E, Blanquer A, Knitlova J, Plencner M, Jencova V, Koprivova B, Lisnenko M, Kostakova EK, Prochazkova R, Bacakova L. The Effect of the Controlled Release of Platelet Lysate from PVA Nanomats on Keratinocytes, Endothelial Cells and Fibroblasts. NANOMATERIALS 2021; 11:nano11040995. [PMID: 33924537 PMCID: PMC8070234 DOI: 10.3390/nano11040995] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 01/13/2023]
Abstract
Platelet lysate (PL) provides a natural source of growth factors and other bioactive molecules, and the local controlled release of these bioactive PL components is capable of improving the healing of chronic wounds. Therefore, we prepared composite nanofibrous meshes via the needleless electrospinning technique using poly(vinyl alcohol) (PVA) with a high molecular weight and with a high degree of hydrolysis with the incorporated PL (10% w/w). The morphology, wettability and protein release from the nanofibers was then assessed from the resulting composite PVA–PL nanomats. The bioactivity of the PVA–PL nanomats was proved in vitro using HaCaT keratinocytes, human saphenous endothelial cells (HSVECs) and 3T3 fibroblasts. The PVA–PL supported cell adhesion, proliferation, and viability. The improved phenotypic maturation of the HaCaT cells due to the PVA–PL was manifested via the formation of intermediate filaments positive for cytokeratin 10. The PVA–PL enhanced both the synthesis of the von Willebrand factor via HSVECs and HSVECs chemotaxis through membranes with 8 µm-sized pores. These results indicated the favorable effects of the PVA–PL nanomats on the three cell types involved in the wound healing process, and established PVA–PL nanomats as a promising candidate for further evaluation with respect to in vivo experiments.
Collapse
Affiliation(s)
- Elena Filova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 1083, 142 20 Prague, Czech Republic; (A.B.); (J.K.); (M.P.); (L.B.)
- Correspondence: ; Tel.: +420-2944-3742
| | - Andreu Blanquer
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 1083, 142 20 Prague, Czech Republic; (A.B.); (J.K.); (M.P.); (L.B.)
| | - Jarmila Knitlova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 1083, 142 20 Prague, Czech Republic; (A.B.); (J.K.); (M.P.); (L.B.)
| | - Martin Plencner
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 1083, 142 20 Prague, Czech Republic; (A.B.); (J.K.); (M.P.); (L.B.)
| | - Vera Jencova
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic; (V.J.); (B.K.); (M.L.); (E.K.K.)
| | - Barbora Koprivova
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic; (V.J.); (B.K.); (M.L.); (E.K.K.)
| | - Maxim Lisnenko
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic; (V.J.); (B.K.); (M.L.); (E.K.K.)
| | - Eva Kuzelova Kostakova
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic; (V.J.); (B.K.); (M.L.); (E.K.K.)
| | - Renata Prochazkova
- Regional Hospital Liberec, Husova 357/10, 460 63 Liberec, Czech Republic;
- Faculty of Health Studies, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, 1083, 142 20 Prague, Czech Republic; (A.B.); (J.K.); (M.P.); (L.B.)
| |
Collapse
|
30
|
Bakeeva IV, Doktorova AV, Damshkaln LG, Lozinsky VI. A Study of Cryostructuring of Polymer Systems. 54. Hybrid Organo-Inorganic Poly(vinyl alcohol) Cryogels Filled with In situ Formed Silica. COLLOID JOURNAL 2021. [DOI: 10.1134/s1061933x21010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
31
|
Yang WJ, Wang X, Zhang R, Wang Y, Qiu Q, Yuwen L, Wang L. A hybrid polyvinyl alcohol/molybdenum disulfide nanosheet hydrogel with light-triggered rapid self-healing capability. J Mater Chem B 2021; 9:2266-2274. [DOI: 10.1039/d0tb02830d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By employing the excellent photothermal conversion properties of molybdenum disulfide (MoS2) nanosheets, a hybrid hydrogel was prepared with light-triggered rapid self-healing capability.
Collapse
Affiliation(s)
- Wen Jing Yang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Xiaodong Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Rui Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Yuxin Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Qiu Qiu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Lihui Yuwen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| |
Collapse
|
32
|
de Lacerda Bukzem A, Dos Santos DM, Leite IS, Inada NM, Campana-Filho SP. Tuning the properties of carboxymethylchitosan-based porous membranes for potential application as wound dressing. Int J Biol Macromol 2020; 166:459-470. [PMID: 33127547 DOI: 10.1016/j.ijbiomac.2020.10.204] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/07/2020] [Accepted: 10/24/2020] [Indexed: 12/31/2022]
Abstract
Wound repair is a complex process that calls for strategies to allow a rapid and effective regeneration of injured skin, which has stimulated the research of advanced wound dressings. Herein, highly porous membranes of N,O-carboxymethylchitosan (CMCh), and poly (vinyl alcohol) (PVA) were successfully prepared via a green and facile freeze-drying method of blend solutions containing CMCh/PVA at weight ratio 25/75. Membranes composed only by CMCh were also prepared and genipin was used for crosslinking. Different contents of TiO2 nanoparticles were incorporated to both type of membranes, which were characterized in terms of morphology, porosity (Φ), swelling capacity (S.C.), mechanical properties, susceptibility to lysozyme degradation and in vitro cytotoxicity toward human fibroblast (HDFn) and keratinocytes (HaCaT) cells. Larger apparent pores were observed in the surface of the genipin-crosslinked CMCh membrane, which resulted in higher porosity (Φ ≈ 76%) and swelling capacity (S.C. ≈ 1720%) as compared to CMCh/PVA membrane (Φ ≈ 68%; S.C. ≈ 1660%). The porosity of both types of membranes decreased upon the addition of TiO2 nanoparticles while swelling capacity increased. Due to their high porosity and swelling capacity, adequate mechanical properties, controlled degradability, and cytocompatibility, such carboxymethylchitosan-based membranes are potentially useful as wound dressings.
Collapse
Affiliation(s)
- Andrea de Lacerda Bukzem
- Sao Carlos Institute of Chemistry/University of Sao Paulo, Av. Trabalhador sao-carlense, 400, 13566-590 Sao Carlos, São Paulo, Brazil
| | - Danilo Martins Dos Santos
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970 São Carlos, SP, Brazil
| | - Ilaiáli Souza Leite
- Sao Carlos Institute of Physics, University of São Paulo, PO Box 369, 13560-970 São Carlos, São Paulo, Brazil
| | - Natalia Mayumi Inada
- Sao Carlos Institute of Physics, University of São Paulo, PO Box 369, 13560-970 São Carlos, São Paulo, Brazil
| | - Sérgio Paulo Campana-Filho
- Sao Carlos Institute of Chemistry/University of Sao Paulo, Av. Trabalhador sao-carlense, 400, 13566-590 Sao Carlos, São Paulo, Brazil.
| |
Collapse
|
33
|
Wang Z, Li X, Cui Y, Cheng K, Dong M, Liu L. Effect of molecular weight of regenerated silk fibroin on silk-based spheres for drug delivery. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0591-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Charron PN, Jacobs JI, Yao SX, Oldinski RA. Effects of cryo-processing on the mechanical and biological properties of poly(vinyl alcohol)-gelatin theta-gels. Biointerphases 2020; 15:051004. [PMID: 32962353 PMCID: PMC7511238 DOI: 10.1116/6.0000381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/17/2020] [Accepted: 08/31/2020] [Indexed: 12/24/2022] Open
Abstract
Poly(vinyl alcohol) (PVA), a synthetic, nontoxic polymer, is widely studied for use as a biomedical hydrogel due to its structural and physicomechanical properties. Depending on the synthesis method, PVA hydrogels can exhibit a range of selected characteristics-strength, creep resistance, energy dissipation, degree of crystallinity, and porosity. While the structural integrity and behavior of the hydrogel can be fine-tuned, common processing techniques result in a brittle, linear elastic material. In addition, PVA lacks functionality to engage and participate in cell adhesion, which can be a limitation for integrating PVA materials with tissue in situ. Thus, there is a need to further engineer PVA hydrogels to optimize its physicomechanical properties while enhancing cell adhesion and bioactivity. While the inclusion of gelatin into PVA hydrogels has been shown to impart cell-adhesive properties, the optimization of the mechanical properties of PVA-gelatin blends has not been studied in the context of traditional PVA hydrogel processing techniques. The incorporation of poly(ethylene glycol) with PVA prior to solidification forms an organized, cell instructive hydrogel with improved stiffness. The effect of cryo-processing, i.e., freeze-thaw (FT) cycling was elucidated by comparing 1 FT and 8 FT theta-cryo-gels and cryo-gels. To confirm the viability of the gels, human mesenchymal stem cell (hMSC) protein and sulfated glycosaminoglycan assays were performed to verify the nontoxicity and influence on hMSC differentiation. We have devised an elastic PVA-gelatin hydrogel utilizing the theta-gel and cryo-gel processing techniques, resulting in a stronger, more elastic material with greater potential as a scaffold for complex tissues.
Collapse
Affiliation(s)
- Patrick N Charron
- Department of Mechanical Engineering, University of Vermont, Burlington, Vermont 05405
| | - Jaime I Jacobs
- Civil and Environmental Engineering Department, University of Vermont, Burlington, Vermont 05405
| | - Selina X Yao
- Department of Mechanical Engineering, University of Vermont, Burlington, Vermont 05405
| | - Rachael A Oldinski
- Department of Mechanical Engineering, University of Vermont, Burlington, Vermont 05405
| |
Collapse
|
35
|
Lozinsky VI. Cryostructuring of Polymeric Systems. 55. Retrospective View on the More than 40 Years of Studies Performed in the A.N.Nesmeyanov Institute of Organoelement Compounds with Respect of the Cryostructuring Processes in Polymeric Systems. Gels 2020; 6:E29. [PMID: 32927850 PMCID: PMC7559272 DOI: 10.3390/gels6030029] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023] Open
Abstract
The processes of cryostructuring in polymeric systems, the techniques of the preparation of diverse cryogels and cryostructurates, the physico-chemical mechanisms of their formation, and the applied potential of these advanced polymer materials are all of high scientific and practical interest in many countries. This review article describes and discusses the results of more than 40 years of studies in this field performed by the researchers from the A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences-one of the key centers, where such investigations are carried out. The review includes brief historical information, the description of the main effects and trends characteristic of the cryostructuring processes, the data on the morphological specifics inherent in the polymeric cryogels and cryostructurates, and examples of their implementation for solving certain applied tasks.
Collapse
Affiliation(s)
- Vladimir I Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia
| |
Collapse
|
36
|
Zhai MY, Feng K, Hu TG, Zong MH, Wu H. Development of a novel nano-based detection card by electrospinning for rapid and sensitive analysis of pesticide residues. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4400-4408. [PMID: 32388876 DOI: 10.1002/jsfa.10477] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/08/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Increasing food safety awareness of consumers promotes the development of rapid and sensitive detection techniques for pesticide residues. In this study, a new type of rapid detection card for organophosphorus and carbamate pesticide residues was developed by electrospinning. The card involved enzyme fiber mat (EFM) and substrate fiber mat (SFM) which were prepared by mixing poly(vinyl alcohol) with acetylcholinesterase (AChE) and indolyl acetate (IA), respectively. RESULTS The mean diameter of fibers was 240 ± 53 nm for EFM and 387 ± 84 nm for SFM. Results of Fourier transform infrared and X-ray photoelectron spectroscopies confirmed that AChE and IA were successfully encapsulated into the fibers. The minimum concentrations of AChE and IA for effective detection were 1 and 3 mg mL-1 , respectively, and the optimal detection time was 15 min. The limits of detection for this card were 0.5 mg L-1 for omethoate, 1.5 mg L-1 for malathion, 0.1 mg L-1 for carbaryl and 0.02 mg L-1 for carbofuran. The detection card exhibited good storage stability and its activity could be maintained when stored at room temperature for at least 4 months. Additionally, the EFM can be reused three times. CONCLUSIONS The detection card obtained here was superior to a commercial card in detecting pesticide residues in real food samples. Hence, this electrospun detection card has potential for simple, rapid and sensitive analysis of pesticide residues. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Meng-Yu Zhai
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| | - Kun Feng
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| | - Teng-Gen Hu
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Min-Hua Zong
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| | - Hong Wu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| |
Collapse
|
37
|
Pedersen SL, Huynh TH, Pöschko P, Fruergaard AS, Jarlstad Olesen MT, Chen Y, Birkedal H, Subbiahdoss G, Reimhult E, Thøgersen J, Zelikin AN. Remotely Triggered Liquefaction of Hydrogel Materials. ACS NANO 2020; 14:9145-9155. [PMID: 32615036 DOI: 10.1021/acsnano.0c04522] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Adaptable behavior such as triggered disintegration affords a broad scope and utility for (bio)materials in diverse applications in materials science and engineering. The impact of such materials continues to grow due to the increased importance of environmental considerations as well as the increased use of implants in medical practices. However, examples of such materials are still few. In this work, we engineer triggered liquefaction of hydrogel biomaterials in response to internal, localized heating, mediated by near-infrared light as external stimulus. This adaptable behavior is engineered into the readily available physical hydrogels based on poly(vinyl alcohol), using gold nanoparticles or an organic photothermal dye as heat generators. Upon laser light irradiation, engineered biomaterials underwent liquefaction within seconds. Pulsed laser light irradiation afforded controlled, on-demand release of the incorporated cargo, successful for small molecules as well as proteins (enzymes) in their biofunctional form.
Collapse
Affiliation(s)
- Søren L Pedersen
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Tin H Huynh
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Philipp Pöschko
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | | | | | - Yaqing Chen
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
- iNano Interdisciplinary Nanoscience Centre, Aarhus University, Aarhus 8000, Denmark
| | - Henrik Birkedal
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
- iNano Interdisciplinary Nanoscience Centre, Aarhus University, Aarhus 8000, Denmark
| | - Guruprakash Subbiahdoss
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria
| | - Erik Reimhult
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences, A-1190 Vienna, Austria
| | - Jan Thøgersen
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Alexander N Zelikin
- Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
- iNano Interdisciplinary Nanoscience Centre, Aarhus University, Aarhus 8000, Denmark
| |
Collapse
|
38
|
Alvarez‐Lorenzo C, Mayo‐Olveira F, Barbosa S, Taboada P, Concheiro A. Poly(vinyl alcohol) triggers Au nanoparticles formation for near‐infrared radiation‐responsive gels and nanofibers. J Appl Polym Sci 2020. [DOI: 10.1002/app.48811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carmen Alvarez‐Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI‐1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS)Universidade de Santiago de Compostela 15872 Santiago de Compostela Spain
| | - Fátima Mayo‐Olveira
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI‐1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS)Universidade de Santiago de Compostela 15872 Santiago de Compostela Spain
| | - Silvia Barbosa
- Área de Física de la Materia Condensada, Facultad de Física and Health Research Institute of Santiago de Compostela (IDIS)Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Pablo Taboada
- Área de Física de la Materia Condensada, Facultad de Física and Health Research Institute of Santiago de Compostela (IDIS)Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI‐1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS)Universidade de Santiago de Compostela 15872 Santiago de Compostela Spain
| |
Collapse
|
39
|
Samadian H, Maleki H, Fathollahi A, Salehi M, Gholizadeh S, Derakhshankhah H, Allahyari Z, Jaymand M. Naturally occurring biological macromolecules-based hydrogels: Potential biomaterials for peripheral nerve regeneration. Int J Biol Macromol 2020; 154:795-817. [DOI: 10.1016/j.ijbiomac.2020.03.155] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/18/2022]
|
40
|
Giglio LP, Picheth GF, Løvschall KB, Zelikin AN, de Oliveira MG. S-nitrosothiol-terminated poly(vinyl alcohol): Nitric oxide release and skin blood flow response. Nitric Oxide 2020; 98:41-49. [DOI: 10.1016/j.niox.2020.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/24/2020] [Accepted: 03/03/2020] [Indexed: 02/06/2023]
|
41
|
Xiang J, Shen L, Hong Y. Status and future scope of hydrogels in wound healing: Synthesis, materials and evaluation. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109609] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
42
|
Pourjavadi A, Mazaheri Tehrani Z, Salami H, Seidi F, Motamedi A, Amanzadi A, Zayerzadeh E, Shabanian M. Both Tough and Soft Double Network Hydrogel Nanocomposite Based on O‐Carboxymethyl Chitosan/Poly(vinyl alcohol) and Graphene Oxide: A Promising Alternative for Tissue Engineering. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25297] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ali Pourjavadi
- Polymer Research Laboratory, Department of ChemistrySharif University of Technology Tehran Iran
| | - Zahra Mazaheri Tehrani
- Polymer Research Laboratory, Department of ChemistrySharif University of Technology Tehran Iran
| | - Hamid Salami
- Faculty of Chemistry and Petrochemical EngineeringStandard Research Institute (SRI) Karaj Iran
| | - Farzad Seidi
- Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University Nanjing 210037 China
| | - Anahita Motamedi
- Polymer Research Laboratory, Department of ChemistrySharif University of Technology Tehran Iran
| | - Amirhossein Amanzadi
- Polymer Research Laboratory, Department of ChemistrySharif University of Technology Tehran Iran
| | - Ehsan Zayerzadeh
- Food Technology and Agricultural Products Research Center, Standard Research Institute (SRI) Karaj Iran
| | - Meisam Shabanian
- Faculty of Chemistry and Petrochemical EngineeringStandard Research Institute (SRI) Karaj Iran
| |
Collapse
|
43
|
Hozumi T, Sreedevi AM, Ohta S, Ito T. Nonlinear Pressure Drop Oscillations during Gelation in a Kenics Static Mixer. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuro Hozumi
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Athira M Sreedevi
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Seiichi Ohta
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Taichi Ito
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
44
|
Chen X, Qian H, Qiao H, Dong B, Chen E, Huang D, Wang T, Chen W. Tumor-Adhesive and pH-Degradable Microgels by Microfluidics and Photo-Cross-Linking for Efficient Antiangiogenesis and Enhanced Cancer Chemotherapy. Biomacromolecules 2020; 21:1285-1294. [DOI: 10.1021/acs.biomac.0c00049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xingmei Chen
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Hongliang Qian
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Haishi Qiao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Bin Dong
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Enping Chen
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Dechun Huang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Ting Wang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Wei Chen
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China
| |
Collapse
|
45
|
Spizzirri UG. Functional Polymers for Controlled Drug Release. Pharmaceutics 2020; 12:E135. [PMID: 32033469 PMCID: PMC7076493 DOI: 10.3390/pharmaceutics12020135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 01/31/2020] [Indexed: 11/16/2022] Open
Abstract
In the last decade, the pharmaceutical application of hydrophilic materials has emerged as one of the most significant trends in the biomedical and pharmaceutical areas [...].
Collapse
Affiliation(s)
- Umile Gianfranco Spizzirri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende (CS), Italy
| |
Collapse
|
46
|
du Toit JP, Pott RWM. Transparent polyvinyl-alcohol cryogel as immobilisation matrix for continuous biohydrogen production by phototrophic bacteria. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:105. [PMID: 32536970 PMCID: PMC7285740 DOI: 10.1186/s13068-020-01743-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/01/2020] [Indexed: 05/18/2023]
Abstract
BACKGROUND Phototrophic purple non-sulfur bacteria (PNSB) have gained attention for their ability to produce a valuable clean energy source in the form biohydrogen via photofermentation of a wide variety of organic wastes. For maturation of these phototrophic bioprocesses towards commercial feasibility, development of suitable immobilisation materials is required to allow continuous production from a stable pool of catalytic biomass in which energy is not diverted towards biomass accumulation, and optimal hydrogen production rates are realised. Here, the application of transparent polyvinyl-alcohol (PVA) cryogel beads to immobilisation of Rhodopseudomonas palustris for long-term hydrogen production is described. PVA cryogel properties are characterised and demonstrated to be well suited to the purpose of continuous photofermentation. Finally, analysis of the long-term biocompatibility of the material is illustrated. RESULTS The addition of glycerol co-solvent induces favourable light transmission properties in normally opaque PVA cryogels, especially well-suited to the near-infrared light requirements of PNSB. Material characterisation showed high mechanical resilience, low resistance to diffusion of substrates and high biocompatibility of the material and immobilisation process. The glycerol co-solvent in transparent cryogels offered additional benefit by reinforcing physical interactions to the extent that only a single freeze-thaw cycle was required to form durable cryogels, extending utility beyond only phototrophic bioprocesses. In contrast, conventional PVA cryogels require multiple cycles which compromise viability of entrapped organisms. Hydrogen production studies of immobilised Rhodopseudomonas palustris in batch photobioreactors showed higher specific hydrogen production rates which continued longer than planktonic cultures. Continuous cultivation yielded hydrogen production for at least 67 days from immobilised bacteria, demonstrating the suitability of PVA cryogel immobilisation for long-term phototrophic bioprocesses. Imaged organisms immobilised in cryogels showed a monolithic structure to PVA cryogels, and demonstrated a living, stable, photofermentative population after long-term immobilisation. CONCLUSION Transparent PVA cryogels offer ideal properties as an immobilisation matrix for phototrophic bacteria and present a low-cost photobioreactor technology for the further advancement of biohydrogen from waste as a sustainable energy source, as well as development of alternative photo-bioprocesses exploiting the unique capabilities of purple non-sulfur bacteria.
Collapse
Affiliation(s)
- Jan-Pierre du Toit
- Department of Process Engineering, Stellenbosch University, Banghoek Road, Stellenbosch, South Africa
| | - Robert W. M. Pott
- Department of Process Engineering, Stellenbosch University, Banghoek Road, Stellenbosch, South Africa
| |
Collapse
|
47
|
Aslanli A, Stepanov N, Razheva T, Podorozhko EA, Lyagin I, Lozinsky VI, Efremenko E. Enzymatically Functionalized Composite Materials Based on Nanocellulose and Poly(Vinyl Alcohol) Cryogel and Possessing Antimicrobial Activity. MATERIALS 2019; 12:ma12213619. [PMID: 31689944 PMCID: PMC6862455 DOI: 10.3390/ma12213619] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/28/2019] [Accepted: 10/31/2019] [Indexed: 12/16/2022]
Abstract
In the present work, innovative composite biomaterials possessing bactericidal properties and based on the hexahistidine-tagged organophosphorus hydrolase (His6-OPH) entrapped in the poly(vinyl alcohol) cryogel (PVA-CG)/bacterial cellulose (BC) were developed. His6-OPH possesses lactonase activity, with a number of N-acyl homoserine lactones being the inducers of Gram-negative bacterial resistance. The enzyme can also be combined with various antimicrobial agents (antibiotics and antimicrobial peptides) to improve the efficiency of their action. In this study, such an effect was shown for composite biomaterials when His6-OPH was entrapped in PVA-CG/BC together with β-lactam antibiotic meropenem or antimicrobial peptides temporin A and indolicidin. The residual catalytic activity of immobilized His6-OPH was 60% or more in all the composite samples. In addition, the presence of BC filler in the PVA-CG composite resulted in a considerable increase in the mechanical strength and heat endurance of the polymeric carrier compared to the BC-free cryogel matrix. Such enzyme-containing composites could be interesting in the biomedical field to help overcome the problem of antibiotic resistance of pathogenic microorganisms.
Collapse
Affiliation(s)
- Aysel Aslanli
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
- N.M.Emanuel Institute of Biochemical Physics RAS, Moscow 119334, Russia.
| | - Tatyana Razheva
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119334, Russia.
| | - Elena A Podorozhko
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119334, Russia.
| | - Ilya Lyagin
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
- N.M.Emanuel Institute of Biochemical Physics RAS, Moscow 119334, Russia.
| | - Vladimir I Lozinsky
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119334, Russia.
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
- N.M.Emanuel Institute of Biochemical Physics RAS, Moscow 119334, Russia.
| |
Collapse
|
48
|
Flórez-Castillo J, Ropero-Vega J, Perullini M, Jobbágy M. Biopolymeric pellets of polyvinyl alcohol and alginate for the encapsulation of Ib-M6 peptide and its antimicrobial activity against E. coli. Heliyon 2019; 5:e01872. [PMID: 31194071 PMCID: PMC6551476 DOI: 10.1016/j.heliyon.2019.e01872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/21/2019] [Accepted: 05/29/2019] [Indexed: 11/24/2022] Open
Abstract
The encapsulation of Ib-M6 antibacterial peptide in pellets of polyvinyl alcohol (PVA) and polyvinyl alcohol-alginate (PVA-Alg) matrices was carried out in order to explore its controlled release and activity against Escherichia coli K-12. The pellets were obtained by combined ice segregation induced self-assembly (ISISA) and freezing-thawing methods and their microstructure was studied by scanning electron microscopy. Bromothymol blue was used as a model compound to study the transport mechanisms and release from pellets. The results show that there is a significant effect of the total concentration of PVA precursor solutions, the mass ratio of PVA of different molecular weights and the addition of alginate on the microstructure and transport properties of pellets. The antibacterial activity of Ib-M6 against Escherichia coli K-12 was not affected by the encapsulation in PVA pellets. However, the release of Ib-M6 from PVA-Alg pellets was not possible, probably due to the electrostatic interaction of positively charged Ib-M6 and negatively alginate structure. Nonetheless, the controlled release of Ib-M6 from polymeric matrices can be fitting by modifying parameters such as the concentration and type of polymer precursors.
Collapse
Affiliation(s)
- J.M. Flórez-Castillo
- Universidad de Santander, Facultad de Ciencias Exactas, Naturales y Agropecuarias, Ciencias Básicas y Aplicadas para la Sostenibilidad – CIBAS, Calle 70 No. 55-210, C.P. 680003, Bucaramanga (Santander), Colombia
- Universidad Industrial de Santander, Carrera 27 calle 9 Ciudad Universitaria, C.P. 680001, Bucaramanga (Santander), Colombia
| | - J.L. Ropero-Vega
- Universidad de Santander, Facultad de Ciencias Exactas, Naturales y Agropecuarias, Ciencias Básicas y Aplicadas para la Sostenibilidad – CIBAS, Calle 70 No. 55-210, C.P. 680003, Bucaramanga (Santander), Colombia
| | - Mercedes Perullini
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía – INQUIMAE, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 (1428), Buenos Aires, 1053, Argentina
| | - Matias Jobbágy
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía – INQUIMAE, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 (1428), Buenos Aires, 1053, Argentina
| |
Collapse
|
49
|
Uppuluri VNVA, Shanmugarajan TS. Icariin-Loaded Polyvinyl Alcohol/Agar Hydrogel: Development, Characterization, and In Vivo Evaluation in a Full-Thickness Burn Model. INT J LOW EXTR WOUND 2019; 18:323-335. [PMID: 31140339 DOI: 10.1177/1534734619849982] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tissue regeneration has become a promising strategy for repairing damaged skin tissues. Among the hydrogels for tissue regeneration applications, topical hydrogels have demonstrated great potential for use as 3D-scaffolds in the burn wound healing process. Currently, no report has been published specifically on icariin-loaded polyvinyl alcohol (PVA)/agar hydrogel on full-thickness burn wounds. In the present study, burn tissue regeneration based on biomimetic hydrogel scaffolds was used for repairing damaged extracellular matrix. Furthermore, a skin burn model was developed in rats, and the icariin-loaded PVA/agar hydrogels were implanted into the damaged portions. The regeneration of the damaged tissues with the help of the icariin-loaded hydrogel group exhibited new translucent skin tissues and repaired extracellular matrix, indicating that the hydrogel can enhance the wound healing process. Moreover, characterization studies such as X-ray diffraction, Fourier-transformed infrared spectroscopy, and differential scanning calorimetry reported the extent of compatibility between icariin and its polymers. Results of the field emission scanning electron microscopy images revealed the extent of the spread of icariin within the polymer-based hydrogel. Furthermore, the wound healing potential, confirmed by histopathological and histochemical findings at the end of 21 days, revealed the visual evidence for the biomimetic property of icariin-loaded PVA/agar hydrogel scaffolds with the extracellular matrix for tissue regeneration.
Collapse
Affiliation(s)
| | - T S Shanmugarajan
- Vels Institute of Science, Technology & Advanced Studies (VISTAS), Chennai, India
| |
Collapse
|
50
|
Charron PN, Braddish TA, Oldinski RA. PVA-gelatin hydrogels formed using combined theta-gel and cryo-gel fabrication techniques. J Mech Behav Biomed Mater 2019; 92:90-96. [PMID: 30665114 PMCID: PMC6387851 DOI: 10.1016/j.jmbbm.2019.01.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/10/2018] [Accepted: 01/05/2019] [Indexed: 10/27/2022]
Abstract
Poly(vinyl alcohol) (PVA) is a synthetic, biocompatible polymer that has been widely studied for use in bioengineered tissue scaffolds due to its relatively high strength, creep resistance, water retention, and porous structure. However, PVA hydrogels traditionally exhibit low percent elongation and energy dissipation. PVA material and mechanical properties can be fine-tuned by controlling the physical, non-covalent crosslinks during hydrogel formation through various techniques; PVA scaffolds were modified with gelatin, a natural collagen derivative also capable of forming reversible hydrogen bonds. Blending in gelatin and poly(ethylene glycol) (PEG) with PVA prior to solidification formed a highly organized hydrogel with improved toughness and dynamic elasticity. Theta-gels were formed from the solidification of warm solutions and the phase separation of high molecular weight gelatin and PVA from a low molecular PEG porogen upon cooling. While PVA-gelatin hydrogels can be synthesized in this manner, the hydrogels exhibited low toughness with increased elasticity. Thus, theta-gels were additionally processed using cryo-gel fabrication techniques, which involved freezing theta-gels, lyophilizing and re-hydrating. The result was a stronger, more resilient material. We hypothesized that the increased formation of physical hydrogen bonds between the PVA and gelatin allowed for the combination of a stiffer material with energy dissipation characteristics. Rheological data suggested significant changes in the storage moduli of the new PVA-gelatin theta-cryo-gels. Elastic modulus, strain to failure, hysteresis and resilience were studied through uniaxial tension and dynamic mechanical analysis in compression.
Collapse
Affiliation(s)
- Patrick N Charron
- Department of Mechanical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Tess A Braddish
- Department of Mechanical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT 05405, USA
| | - Rachael A Oldinski
- Department of Mechanical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT 05405, USA; Bioengineering Program, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT 05405, USA; Department of Electrical and Biomedical Engineering, College of Engineering and Mathematical Sciences, University of Vermont, Burlington, VT 05405, USA; Materials Science Program, Graduate College, University of Vermont, Burlington, VT 05405, USA.
| |
Collapse
|