1
|
Castanheira EJ, Monteiro LPG, Gaspar VM, Correia TR, Rodrigues JMM, Mano JF. In-Bath 3D Printing of Anisotropic Shape-Memory Cryogels Functionalized with Bone-Bioactive Nanoparticles. ACS Appl Mater Interfaces 2024; 16:18386-18399. [PMID: 38591243 DOI: 10.1021/acsami.3c18290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Cryogels exhibit unique shape memory with full recovery and structural stability features after multiple injections. These constructs also possess enhanced cell permeability and nutrient diffusion when compared to typical bulk hydrogels. Volumetric processing of cryogels functionalized with nanosized units has potential to widen their biomedical applications, however this has remained challenging and relatively underexplored. In this study, we report a novel methodology that combines suspension 3D printing with directional freezing for the fabrication of nanocomposite cryogels with configurable anisotropy. When compared to conventional bulk or freeze-dried hydrogels, nanocomposite cryogel formulations exhibit excellent shape recovery (>95%) and higher pore connectivity. Suspension printing, assisted with a prechilled metal grid, was optimized to induce anisotropy. The addition of calcium- and phosphate-doped mesoporous silica nanoparticles into the cryogel matrix enhanced bioactivity toward orthopedic applications without hindering the printing process. Notably, the nanocomposite 3D printed cryogels exhibit injectable shape memory while also featuring a lamellar topography. The fabrication of these constructs was highly reproducible and exhibited potential for a cell-delivery injectable cryogel with no cytotoxicity to human-derived adipose stem cells. Hence, in this work, it was possible to combine a gravity defying 3D printed methodology with injectable and controlled anisotropic macroporous structures containing bioactive nanoparticles. This methodology ameliorates highly tunable injectable 3D printed anisotropic nanocomposite cryogels with a user-programmable degree of structural complexity.
Collapse
Affiliation(s)
- Edgar J Castanheira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| | - Luís P G Monteiro
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| | - Vítor M Gaspar
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| | - Tiago R Correia
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| | - João M M Rodrigues
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| | - João F Mano
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, portugal
| |
Collapse
|
2
|
Shakya KR, Nigam K, Sharma A, Jahan K, Tyagi AK, Verma V. Preparation and assessment of agar/TEMPO-oxidized bacterial cellulose cryogels for hemostatic applications. J Mater Chem B 2024; 12:3453-3468. [PMID: 38505998 DOI: 10.1039/d4tb00047a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
In this work, we have demonstrated agar and oxidized bacterial cellulose cryogels as a potential hemostatic dressing material. TEMPO-oxidized bacterial cellulose (OBC) was incorporated into the agar matrix, improving its mechanical and hemostatic properties. The oxidation of bacterial cellulose (BC) was evidenced by chemical characterization studies, confirming the presence of carboxyl groups. The in vitro blood clotting test conducted on agar/OBC composite cryogels demonstrated complete blood clotting within 90 seconds, indicating their excellent hemostatic efficacy. The cryogels exhibited superabsorbent properties with a swelling degree of 4200%, enabling them to absorb large amounts of blood. Moreover, the compressive strength of the composite cryogels was appreciably improved compared to pure agar, resulting in a more stable physical structure. The platelet adhesion test proved the significant ability of the composite cryogels to adhere to and aggregate platelets. Hemocompatibility and cytocompatibility tests have verified the safety of these cryogels for hemostatic applications. Finally, the material exhibited remarkable in vivo hemostatic performance, achieving clotting times of 64 seconds and 35 seconds when tested in the rat tail amputation model and the liver puncture model, respectively. The experiment results were compared with those of commercial hemostat, Axiostat, and Surgispon, affirming the potential of agar/OBC composite cryogel as a hemostatic dressing material.
Collapse
Affiliation(s)
- Kaushal R Shakya
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| | - Kuldeep Nigam
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| | - Arpit Sharma
- Division of CBRN Research, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, New Delhi 110054, India
| | - Kousar Jahan
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
- Department of Chemistry, Delaware State University, Dover, Delaware 19901, USA
| | - Amit Kumar Tyagi
- Division of CBRN Research, Institute of Nuclear Medicine and Allied Sciences (INMAS), DRDO, Timarpur, New Delhi 110054, India
| | - Vivek Verma
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
- Centre of Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
- Samtel Centre for Display Technologies, Indian Institute of Technology Kanpur, Kanpur 208016, India
- National Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur 208016, India
| |
Collapse
|
3
|
Mu Y, Wang X, Du X, He PP, Guo W. DNA Cryogels with Anisotropic Mechanical and Responsive Properties for Specific Cell Capture and Release. J Am Chem Soc 2024; 146:5998-6005. [PMID: 38379163 DOI: 10.1021/jacs.3c12846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Due to their programmable stimuli-responsiveness, excellent biocompatibility, and water-rich and soft structures similar to biological tissues, smart DNA hydrogels hold great promise for biosensing and biomedical applications. However, most DNA hydrogels developed to date are composed of randomly oriented and isotropic polymer networks, and the resulting slow response to biotargets and lack of anisotropic properties similar to those of biological tissues have limited their extensive applications. Herein, anisotropic DNA hydrogels consisting of unidirectional void channels internally oriented up to macroscopic length scales were constructed by a directional cryopolymerization method, as exemplified by a DNA-incorporated covalently cross-linked DNA cryogel and a DNA duplex structure noncovalently cross-linked DNA cryogel. Results showed that the formation of unidirectional channels significantly improved the responsiveness of the gel matrix to biomacromolecular substances and further endowed the DNA cryogels with anisotropic properties, including anisotropic mechanical properties, anisotropic swelling/shrinking behaviors, and anisotropic responsiveness to specific biotargets. Moreover, the abundant oriented and long macroporous channels in the gel matrix facilitated the migration of cells, and through the introduction of aptamer structures and thermosensitive polymers, an anisotropic DNA cryogel-based platform was further constructed to achieve the highly efficient capture and release of specific cells. These anisotropic DNA hydrogels may provide new opportunities for the development of anisotropic separation and biosensing systems.
Collapse
Affiliation(s)
- Yali Mu
- Research Center for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xiaowen Wang
- Research Center for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xiaoxue Du
- Research Center for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Ping-Ping He
- Research Center for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Weiwei Guo
- Research Center for Analytical Sciences, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| |
Collapse
|
4
|
Ma Y, Bi J, Wu Z, Feng S, Yi J. Tailoring microstructure and mechanical properties of pectin cryogels by modulate intensity of ionic interconnection. Int J Biol Macromol 2024; 262:130028. [PMID: 38340927 DOI: 10.1016/j.ijbiomac.2024.130028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/15/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Porous morphology and mechanical properties determine the applications of cryogels. To understand the influence of the ionic network on the microstructure and mechanical properties of pectin cryogels, we prepared low-methoxyl pectin (LMP) cryogels with different Ca2+ concentrations (measured as R-value, ranging from 0 to 2) through freeze-drying (FD). Results showed that the R-values appeared to be crucial parameters that impact the pore morphology and mechanical characteristics of cryogels. It is achieved by altering the network stability and water state properties of the cryogel precursor. Cryogel precursors with a saturated R-value (R = 1) produced a low pore diameter (0.12 mm) microstructure, obtaining the highest crispness (15.00 ± 1.85) and hardness (maximum positive force and area measuring 2.36 ± 0.31 N and 12.30 ± 1.57 N·s respectively). Hardness showed a negative correlation with Ca2+ concentration when R ≤ 1 (-0.89), and a similar correlation with the porosity of the gel network when R ≥ 1 (-0.80). Given the impacts of crosslinking on the pore structure, it is confirmed that the pore diameter can be designed between 56.24 and 153.58 μm by controlling R-value in the range of 0-2.
Collapse
Affiliation(s)
- Youchuan Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China; College of Mechanical Engineering, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin University of Science and Technology, Tianjin, China
| | - Jinfeng Bi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
| | - Zhonghua Wu
- College of Mechanical Engineering, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin University of Science and Technology, Tianjin, China
| | - Shuhan Feng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Jianyong Yi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
| |
Collapse
|
5
|
Li Y, Chu C, Chen C, Sun B, Wu J, Wang S, Ding W, Sun D. Quaternized chitosan/oxidized bacterial cellulose cryogels with shape recovery for noncompressible hemorrhage and wound healing. Carbohydr Polym 2024; 327:121679. [PMID: 38171689 DOI: 10.1016/j.carbpol.2023.121679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024]
Abstract
Management of noncompressible torso hemorrhage is an urgent clinical requirement, desiring biomaterials with rapid hemostasis, anti-infection and excellent resilient properties. In this research, we have prepared a highly resilient cryogel with both hemostatic and antibacterial effects by chemical crosslinking and electrostatic interaction. The network structure crosslinked by quaternized chitosan and genipin was interspersed with oxidized bacterial cellulose after lyophilization. The as-prepared cryogel can quickly return to the original volume when soaking in water or blood. The appropriately sized pores in the cryogel help to absorb blood cells and further activate coagulation, while the quaternary ammonium salt groups on quaternized chitosan inhibit bacterial infections. Both cell and animal experiments showed that the cryogel was hypotoxic and could promote the regeneration of wound tissue. This research provides a new pathway for the preparation of double crosslinking cryogels and offers effective and safe biomaterials for the emergent bleeding management of incompressible wounds.
Collapse
Affiliation(s)
- Yongsheng Li
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, Jiangsu Province, China
| | - Chengnan Chu
- Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, China
| | - Chuntao Chen
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, Jiangsu Province, China.
| | - Bianjing Sun
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, Jiangsu Province, China
| | - Jingjing Wu
- Department of Plastic and Aesthetic (Burn) Surgery, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, Hunan Province, China
| | - Shujun Wang
- Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, China.
| | - Weiwei Ding
- Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, China
| | - Dongping Sun
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, Jiangsu Province, China.
| |
Collapse
|
6
|
Zhao Z, Chua HM, Lai HY, Ng KW. A facile method to fabricate versatile keratin cryogels for tissue engineering applications. Biomed Mater 2024; 19:025048. [PMID: 38364277 DOI: 10.1088/1748-605x/ad2a3f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Human hair keratin (HHK) has been extensively explored as a biomaterial for soft tissue regeneration due to their excellent bioactivity and biocompatibility. The possibility to fabricate HHK into three-dimensional (3D) hydrogels with physical properties resembling soft tissues has been well demonstrated. However, conventional keratin hydrogels often exhibit a dense architecture that could hinder cell filtration. In the present study, HHK-based cryogels were fabricated using a freeze-thaw (FT) method, where oxidized dopamine (ODA) was employed to covalently crosslink thiol/amine rich-keratin molecules at sub-zero temperatures. The obtained HHK-ODA cryogels have micron-sized pores ranging between 100 and 200 μm and mechanical properties that can be tuned by varying the crosslinking density between ODA and HHK. Through optimization of the weight content of ODA and the number of FT cycles, the compressive strengths and stiffnesses of these cryogels achieved 15-fold increments from ∼1.5 kPa to ∼22 kPa and ∼300 Pa to ∼5000 Pa, respectively. The HHK-ODA cryogels competently supported human dermal fibroblast spreading and proliferation. Overall, this study exhibited a facile method to fabricate mechanically superior keratin-based cryogels with cell compatible microarchitecture, circumventing the need for complicated chemical modifications and the use of cytotoxic crosslinkers.
Collapse
Affiliation(s)
- Zhitong Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Huei Min Chua
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Nanyang Environment and Water Research Institute (NEWRI), Singapore, Singapore
- Skin Research Institute of Singapore (SRIS), Singapore, Singapore
| |
Collapse
|
7
|
Kumar N, Bose P, Kumar S, Daksh S, Verma YK, Roy BG, Som S, Singh JD, Datta A. Nanoapatite-Loaded κ-Carrageenan/Poly(vinyl alcohol)-Based Injectable Cryogel for Hemostasis and Wound Healing. Biomacromolecules 2024; 25:1228-1245. [PMID: 38235663 DOI: 10.1021/acs.biomac.3c01180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Immediate control of excessive bleeding and prevention of infections are of utmost importance in the management of wounds. Cryogels have emerged as promising materials for the rapid release of medication and achieving hemostasis. However, their quick release properties pose the challenge of exposing patients to high concentrations of drugs. In this study, hybrid nanocomposites were developed to address this issue by combining poly(vinyl alcohol) and κ-carrageenan with whitlockite nanoapatite (WNA) particles and ciprofloxacin, aiming to achieve rapid hemostasis and sustained antibacterial effects. A physically cross-linked cryogel was obtained by subjecting a blend of poly(vinyl alcohol) and κ-carrageenan to successive freezing-thawing cycles, followed by the addition of WNA. Furthermore, ciprofloxacin was introduced into the cryogel matrix for subsequent evaluation of its wound healing properties. The resulting gel system exhibited a 3D microporous structure and demonstrated excellent swelling, low cytotoxicity, and outstanding mechanical properties. These characteristics were evaluated through analytical and rheological experiments. The nanocomposite cryogel with 4% whitlockite showed extended drug release of 71.21 ± 3.5% over 21 days and antibacterial activity with a considerable growth inhibition zone (4.19 ± 3.55 cm). Experiments on a rat model demonstrated a rapid hemostasis property of cryogels within an average of 83 ± 4 s and accelerated the process of wound healing with 96.34% contraction compared to the standard, which exhibited only ∼78% after 14 days. The histopathological analysis revealed that the process of epidermal re-epithelialization took around 14 days following the skin incision. The cryogel loaded with WNAs and ciprofloxacin holds great potential for strategic utilization in wound management applications as an effective material for hemostasis and anti-infection purposes.
Collapse
Affiliation(s)
- Nikhil Kumar
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
- Department of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Pritha Bose
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| | - Subodh Kumar
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| | - Shivani Daksh
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
- Department of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Yogesh Kumar Verma
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| | - Bal G Roy
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| | - Swati Som
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| | - Jai Deo Singh
- Department of Chemistry, Indian Institute of Technology, Delhi 110016, India
| | - Anupama Datta
- Institute of Nuclear Medicine & Allied Sciences, Defence Research & Development Organization, Brig SK Mazumdar Marg, Delhi 110054, India
| |
Collapse
|
8
|
Andres M, Robertson E, Hall A, McBride-Gagyi S, Sell S. Controlled pore anisotropy in chitosan-gelatin cryogels for use in bone tissue engineering. J Biomater Appl 2024; 38:797-807. [PMID: 38278524 DOI: 10.1177/08853282231222324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
In tissue engineering, the development of an appropriate scaffold is crucial to provide a framework for new tissue growth. The use of cryogels as scaffolds shows promise due to their macroporous structure, but the pore size, distribution, and interconnectivity is highly variable depending on the fabrication process. The objective of the current research is to provide a technique for controlled anisotropy in chitosan-gelatin cryogels to develop scaffolds for bone tissue engineering application. A mold was developed using additive manufacturing to be used during the freezing process in order to fabricate cryogels with a more interconnected pore structure. The scaffolds were tested to evaluate their porosity, mechanical strength, and to observe cell infiltration through the cryogel. It was found that the use of the mold allowed for the creation of designated pores within the cryogel structure which facilitated cell infiltration to the center of the scaffold without sacrificing mechanical integrity of the structure.
Collapse
Affiliation(s)
- Madeline Andres
- Department of Biomedical Engineering, Saint Louis University, Saint Louis, MO, USA
| | - Eileen Robertson
- Department of Biomedical Engineering, Saint Louis University, Saint Louis, MO, USA
| | - Andrew Hall
- Department of Biomedical Engineering, Saint Louis University, Saint Louis, MO, USA
| | - Sarah McBride-Gagyi
- Department of Orthopaedic Surgery, Saint Louis University School of Medicine, Saint Louis, MO, USA
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA
| | - Scott Sell
- Department of Biomedical Engineering, Saint Louis University, Saint Louis, MO, USA
| |
Collapse
|
9
|
Jonidi Shariatzadeh F, Solouk A, Mirzadeh H, Bonakdar S, Sadeghi D, Khoulenjani SB. Cellulose nanocrystals-reinforced dual crosslinked double network GelMA/hyaluronic acid injectable nanocomposite cryogels with improved mechanical properties for cartilage tissue regeneration. J Biomed Mater Res B Appl Biomater 2024; 112:e35346. [PMID: 38359175 DOI: 10.1002/jbm.b.35346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/04/2023] [Accepted: 10/14/2023] [Indexed: 02/17/2024]
Abstract
Improvement of mechanical properties of injectable tissue engineering scaffolds is a current challenge. The objective of the current study is to produce a highly porous injectable scaffold with improved mechanical properties. For this aim, cellulose nanocrystals-reinforced dual crosslinked porous nanocomposite cryogels were prepared using chemically crosslinked methacrylated gelatin (GelMA) and ionically crosslinked hyaluronic acid (HA) through the cryogelation process. The resulting nanocomposites showed highly porous structures with interconnected porosity (>90%) and mean pore size in the range of 130-296 μm. The prepared nanocomposite containing 3%w/v of GelMA, 20 w/w% of HA, and 1%w/v of CNC showed the highest Young's modulus (10 kPa) and excellent reversibility after 90% compression and could regain its initial shape after injection by a 16-gauge needle in the aqueous media. The in vitro results demonstrated acceptable viability (>90%) and migration of the human chondrocyte cell line (C28/I2), and chondrogenic differentiation of human adipose stem cells. A two-month in vivo assay on a rabbit's ear model confirmed that the regeneration potential of the prepared cryogel is comparable to the natural autologous cartilage graft, suggesting it is a promising alternative for autografts in the treatment of cartilage defects.
Collapse
Affiliation(s)
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Hamid Mirzadeh
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
- Polymer and Color Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Shahin Bonakdar
- National Cell Bank Department, Pasteur Institute of Iran, Tehran, Iran
| | - Davoud Sadeghi
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Shadab Bagheri Khoulenjani
- Polymer and Color Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| |
Collapse
|
10
|
Brebu M, Dumitriu RP, Pamfil D, Butnaru E, Stoleru E. Riboflavin mediated UV crosslinking of chitosan-gelatin cryogels for loading of hydrophobic bioactive compounds. Carbohydr Polym 2024; 324:121521. [PMID: 37985057 DOI: 10.1016/j.carbpol.2023.121521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/22/2023]
Abstract
Chitosan-gelatin cryogels with good loading capacity of hydrophobic compounds were successfully obtained by UV-induced crosslinking. Using riboflavin as photoinitiator was a suitable alternative to classical carbodiimide crosslinking in obtaining carrier matrices for bioactive hydrophobic compounds. Chitosan had a double role, acting both as a base polymer for the hydrogel network and as co-initiator in riboflavin photo-crosslinking. This co-initiator role of chitosan is due to its electron donor capacity, being well known as a Lewis base type macromolecule. The rheological behaviour of the chitosan-gelatin hydrogel precursor solutions was greatly influenced by riboflavin addition as well as by UV irradiation. As a consequence, the temperature of the sol-gel transition during cooling decreased to 25.5 °C. Compared with classical carbodiimide crosslinking, UV irradiation lead to gels with increased network stability, enhanced elastic behaviour, higher structural strength and almost total stress recovery yield (99 %), the latter indicating self-healing capacity. The cryogels manifested pH responsive swelling, this being highest at close to neutral pH of 7.4. Although hydrophilic in nature, the chitosan-gelatin cryogels crosslinked under the combined effect of riboflavin and UV exposure possess the necessary chemical functionality and morphology that allowed successful embedding of hydrophobic clove essential oil. This was loaded by immersion or fumigation and imparted antioxidant activity to the polymeric matrix.
Collapse
Affiliation(s)
- Mihai Brebu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Raluca Petronela Dumitriu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Daniela Pamfil
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Elena Butnaru
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Elena Stoleru
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania.
| |
Collapse
|
11
|
Fang Y, Chen J, Li Q, Chen Q. Chitosan based Janus cryogel with anisotropic wettability, antibacterial activity, and rapid shape memory for effective hemostasis. Int J Biol Macromol 2024; 254:127821. [PMID: 37926326 DOI: 10.1016/j.ijbiomac.2023.127821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/11/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
Excessive bleeding and bacterial infection leading to death is a major concern worldwide, particularly in cases of deep and narrow noncompressible hemorrhage. Herein, a novel Janus cryogel with anisotropic surface wettability, antibacterial activity, and rapid shape recovery was designed by constructing a hydrophilic porous cryogel using chitosan (CS), acacia gum (AG), and quaternized mesoporous bioglass (QMBG), with subsequent surface hydrophobic modification using octadecanol. The asymmetric hydrophobic surface modification of octadecanal endowed OCAQ with outstanding antiblood and antibacterial permeability, effectively preventing blood outflow and the invasion of bacteria to the wound. The hydrophilic parts with interconnected macroporous structure give the cryogel with ultra-high water uptake (5167 ± 182 %) and rapid water-trigged shape recover ability (≈2.1 s). The presence of active CS, AG, and QMBG in cryogel contributes to its exceptional blood clotting ability. Janus cryogel presents outstanding hemostatic performance (0.14 ± 0.03 g) in rat's liver injury model. Moreover, Janus cryogel exhibits excellent antibacterial properties due to the combination of its hydrophobic surface and antimicrobial quaternary amine groups. Meanwhile, the Janus cryogel has favorable hemocompatibility and biocompatibility. A Therefore, the Janus cryogel will become a candidate with great potential for clinical application of noncompressible wound as a multifunctional dressing.
Collapse
Affiliation(s)
- Yan Fang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, People's Republic of China
| | - Jiawen Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, People's Republic of China.
| | - Qinglin Li
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, People's Republic of China
| | - Qinhui Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, People's Republic of China.
| |
Collapse
|
12
|
Akkaya B. Preparation and characterization of lysozyme loaded cryogel for heavy metal removal. Int J Biol Macromol 2023; 253:127494. [PMID: 37858643 DOI: 10.1016/j.ijbiomac.2023.127494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/28/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023]
Abstract
In the present study, monolithic poly(N-isopropylacrylamide-acrylamide)-acrilic acid (poly(npam-aam)-aac) cryogels were made. Swelling tests, SEM, XRD, and ATR-FTIR analyses revealed distinct cryogel and lysozyme-loaded cryogel properties. The equilibrium swelling degree was 6.2 g H2O/g cryogel. The created poly(npam-aam)-aac with pores of 10-100 μm was obviously seen in SEM images. Lysozyme adsorption capacity on poly(npam-aam)-aac was found to be 260 mg/g at pH 7.4 and 40 °C. After that, we used lysozyme adsorbed cryogel for the removal of the model heavy metal ion (cadmium). A series of pH, duration, and ionic strengths were used to conduct Cd2+ adsorption experiments. The results showed that the new adsorbent had a considerable chemical affinity for Cd2+ ions in its ability to bind them under eye ocular conditions (pH 7.4, 32-36 °C, 0,15 M NaCl). The traditional Langmuir adsorption model was the most suitable, achieving maximum uptake of ∼185 mg/g. Chemical adsorption was found to be the rate-controlling step, and the process was also compatible with the pseudo-second-order model. For the treatment of ocular pathologies, the most effective enzyme, lysozyme, must show its function. That is why there is a need for using lysozyme, and lysozyme is selected as a lignad to adsorb heavy metal ions because of its high heavy metal binding affinity. This material could be used for the treatment of ocular pathologies in the future.
Collapse
Affiliation(s)
- Birnur Akkaya
- Sivas Cumhuriyet University Science Faculty, Department of Molecular Biology and Genetics, Sivas, Turkey.
| |
Collapse
|
13
|
Varshney N, Singh P, Rai R, Vishwakarma NK, Mahto SK. Superporous soy protein isolate matrices as superabsorbent dressings for successful management of highly exuding wounds: In vitro and in vivo characterization. Int J Biol Macromol 2023; 253:127268. [PMID: 37813221 DOI: 10.1016/j.ijbiomac.2023.127268] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/11/2023]
Abstract
Soy protein isolate (SPI) has received widespread attention of the biomedical research community primarily due to its good biocompatibility, biodegradability, high availability and low cost. Herein, glutaraldehyde cross-linked microporous sponge-like SPI scaffolds were prepared using the cryogelation technique for tissue engineering applications. The prepared SPI scaffolds possess an interconnected porous structure with approximately 90% porosity and an average pore size in the range of 45-92 μm. The morphology, porosity, swelling capacity and degradation rate of the cryogels were found to be dependent on the concentration of polymer to crosslinking agent. All cryogels were found to be elastic and able to maintain physical integrity even after being compressed to one-fifth of their original length during cyclic compression analysis. These cryogels showed excellent mechanical properties, immediate water-triggered shape restoration and absorption speed. Furthermore, cryogels outperformed cotton and gauze in terms of blood clotting and blood cell adherence. The in vitro and in vivo studies demonstrated the potency of SPI scaffolds for skin tissue engineering applications. Our findings showed that crosslinking with glutaraldehyde had no detrimental effects on cell viability. In addition, an in vivo wound healing study in rats validated them as good potential wound dressing materials.
Collapse
Affiliation(s)
- Neelima Varshney
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Priya Singh
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Rohit Rai
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Niraj K Vishwakarma
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
| | - Sanjeev Kumar Mahto
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India; Centre for Advanced Biomaterials and Tissue Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India.
| |
Collapse
|
14
|
Huang YH, Chen HA, Chen CH, Liao HT, Kuo CY, Chen JP. Injectable gelatin/glucosamine cryogel microbeads as scaffolds for chondrocyte delivery in cartilage tissue engineering. Int J Biol Macromol 2023; 253:126528. [PMID: 37633562 DOI: 10.1016/j.ijbiomac.2023.126528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
In this study, we fabricate squeezable cryogel microbeads as injectable scaffolds for minimum invasive delivery of chondrocytes for cartilage tissue engineering applications. The microbeads with different glucosamine concentrations were prepared by combining the water-in-oil emulsion and cryogelation through crosslinking of gelatin with glutaraldehyde in the presence of glucosamine. The physicochemical characterization results show the successful preparation of cryogel microbeads with uniform shape and size, high porosity, large pore size, high water uptake capacity, and good injectability. In vitro analysis indicates proliferation, migration, and differentiated phenotype of rabbit chondrocytes in the cryogel scaffolds. The seeded chondrocytes in the cryogel scaffold can be delivered by injecting through an 18G needle to fully retain the cell viability. Furthermore, the incorporation of glucosamine in the cryogel promoted the differentiated phenotype of chondrocytes in a dose-dependent manner, from cartilage-specific gene expression and protein production. The in vivo study by injecting the cryogel microbeads into the subcutaneous pockets of nude mice indicates good retention ability as well as good biocompatibility and suitable biodegradability of the cryogel scaffold. Furthermore, the injected chondrocyte/cryogel microbead constructs can form ectopic functional neocartilage tissues following subcutaneous implantation in 21 days, as evidenced by histological and immunohistochemical analysis.
Collapse
Affiliation(s)
- Yen-Hsiang Huang
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Huai-An Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Chih-Hao Chen
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Keelung, Keelung 20401, Taiwan; Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital at Linkou, Chang Gung University School of Medicine, Kwei-San, Taoyuan 33305, Taiwan
| | - Han-Tsung Liao
- Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital at Linkou, Chang Gung University School of Medicine, Kwei-San, Taoyuan 33305, Taiwan
| | - Chang-Yi Kuo
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan; Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital at Linkou, Chang Gung University School of Medicine, Kwei-San, Taoyuan 33305, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Chang Gung University School of Medicine, Kwei-San, Taoyuan 33305, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33305, Taiwan; Department of Materials Engineering, Ming Chi University of Technology, Tai-Shan, New Taipei City 24301, Taiwan.
| |
Collapse
|
15
|
Lei C, Chen P, Zhang Z, Hua F, Hou X, Qu J, Zhao Y, Hu Q. Cellulose cryogels from herbal residues for oily wastewater purification. Int J Biol Macromol 2023; 252:126417. [PMID: 37604424 DOI: 10.1016/j.ijbiomac.2023.126417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/23/2023]
Abstract
Recycling herbal residues for oily wastewater purification is a potential way to use the wastes to treat wastes. Cellulose extracted from herbal residues is a fine material for cryogel fabrication. However, the cellulose cryogels were not suitable for oily wastewater treatment due to their amphiphilicity. To address this issue, the cryogels were modified with methyltrimethoxysilane (MTMS), which made them hydrophobic and reduced their surface energy. In this study, the herbal residues (Ficus microcarpa L. f) were used in cryogel preparation for the first time. The cryogels exhibit super lightweight and low density. The modified cryogels show excellent sorption capacity for free oils, especially silicone oil (51.22 g/g), and outperformed some recent sorbents. They also effectively separated water-in-toluene emulsion stabilized by Span 80, with a separation efficiency of 98.57 % and a flux of 1474.67 L/m2h. This study demonstrated a novel application of waste herbal residues in the field of environmental remediation.
Collapse
Affiliation(s)
- Changyang Lei
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China
| | - Peiying Chen
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China
| | - Zonghui Zhang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China
| | - Fangcong Hua
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China
| | - Xiaohong Hou
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China
| | - Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, PR China
| | - Yudan Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
| | - Qi Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110006, PR China.
| |
Collapse
|
16
|
Ni H, Qian S, Lu J, Feng J, Mou XZ, Zhang J. Natural Polysaccharide Delivery Platforms with Multiscale Structure Used for Cancer Chemoimmunotherapy. Mol Pharm 2023; 20:5778-5789. [PMID: 37752866 DOI: 10.1021/acs.molpharmaceut.3c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Chemoimmunotherapy is an effective cancer treatment method. Drugs are always combined and used in treating cancer. However, the characteristic of drugs varies, making it challenging to control their release kinetics utilizing delivery devices with a single microstructure. In this study, we attempted to uniformly size drugs of varying molecular weights and confine them in a compartment where immune cells may be recruited and moved freely. Dextran microgels were created as modular drug libraries to address the cryogel burst release of small molecule drugs. Then, modular drug libraries and granulocyte-macrophage colony-stimulating factor (GM-CSF) were integrated into cryogels for a combined treatment. Herein, alginate was zwitterion modified to avoid the immune reaction generated by the material. Because of its macroporous structure, the cryogel could be injected into the body, eliminating invasive surgical procedures. Results demonstrated that multiscale delivery platforms could improve the synergistic effect of various medications on tumor treatment.
Collapse
Affiliation(s)
- Haifeng Ni
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Sunxiang Qian
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Jie Lu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Jie Feng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Xiao-Zhou Mou
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou, Zhejiang 310014, P. R. China
| | - Jing Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| |
Collapse
|
17
|
Behrendt F, Cseresnyés Z, Gerst R, Gottschaldt M, Figge MT, Schubert US. Evaluation of reproducible cryogel preparation based on automated image analysis using deep learning. J Biomed Mater Res A 2023; 111:1734-1749. [PMID: 37345381 DOI: 10.1002/jbm.a.37577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/24/2023] [Accepted: 05/27/2023] [Indexed: 06/23/2023]
Abstract
Cryogels represent a class of porous sponge-like materials possessing unique properties including high-fidelity reproduction of tissue structure and maximized permeability. Their architecture is mainly based on an interconnected network of macropores that provides sufficient stability while allowing the movement of substances through the material. In most cryogel applications, the pore size is very important, especially when the material is used as a 3D scaffold for tissue culture, applied as a filter, or utilized as a membrane. In this study, poly(dimethylacrylamide-co-2-hydroxyethyl methacrylate) cryogels have been prepared by two preparation methods to investigate the reproducibility of homogeneous pore structures and pore sizes. Automated image analysis algorithms were developed to rapidly evaluate cryogel pore sizes based on scanning electron microscopy (SEM) images. The quantification approach contained a unique combination of classical and deep learning-based algorithms. To validate the accuracy of the two models, we compared the results obtained from automated SEM image analysis with those from manual pore size determinations and mercury intrusion porosimetry (MIP) measurements. Effect sizes were calculated to compare the results from manual and automated pore size measurements for the cryogel reproducibility series. 81% of the values obtained revealed only trivial differences, which strongly suggests that automated image analysis can reliably substitute the manual evaluation of cryogel pore sizes. The use of an adapted reactor setup yielded cryogels with heterogeneous morphologies in the absence of recognizable pore structures. With the conventional cryogel preparation using plastic syringes, the obtained cryogels represented highly reproducible morphologies and pore sizes in the range between 17 and 22 μm. Calculated effect sizes within the cryogel replicate series revealed only trivial differences between the obtained pore sizes in 83.5% or 99.4% of the data (classical approach and deep learning-based approach, respectively).
Collapse
Affiliation(s)
- Florian Behrendt
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Zoltán Cseresnyés
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Ruman Gerst
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Gottschaldt
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Marc Thilo Figge
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| |
Collapse
|
18
|
Chartier C, Buwalda S, Ilochonwu BC, Van Den Berghe H, Bethry A, Vermonden T, Viola M, Nottelet B, Budtova T. Release Kinetics of Dexamethasone Phosphate from Porous Chitosan: Comparison of Aerogels and Cryogels. Biomacromolecules 2023; 24:4494-4501. [PMID: 36958008 DOI: 10.1021/acs.biomac.2c01408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
Porous chitosan materials as potential wound dressings were prepared via dissolution of chitosan, nonsolvent-induced phase separation in NaOH-water, formation of a hydrogel, and either freeze-drying or supercritical CO2 drying, leading to "cryogels" and "aerogels", respectively. The hydrophilic drug dexamethasone sodium phosphate was loaded by impregnation of chitosan hydrogel, and the release from cryogel or aerogel was monitored at two pH values relevant for wound healing. The goal was to compare the drug-loading efficiency and release behavior from aerogels and cryogels as a function of the drying method, the materials' physicochemical properties (density, morphology), and the pH of the release medium. Cryogels exhibited a higher loading efficiency and a faster release in comparison with aerogels. A higher sample density and lower pH value of the release medium resulted in a more sustained release in the case of aerogels. In contrast, for cryogels, the density and pH of the release medium did not noticeably influence release kinetics. The Korsmeyer-Peppas model showed the best fit to describe the release from the porous chitosan materials into the different media.
Collapse
Affiliation(s)
- Coraline Chartier
- MINES Paris, PSL University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
- Department of Polymers for Health and Biomaterials, IBMM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France
| | - Sytze Buwalda
- MINES Paris, PSL University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| | - Blessing C Ilochonwu
- Division of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, 3508 TB, The Netherlands
| | - Hélène Van Den Berghe
- Department of Polymers for Health and Biomaterials, IBMM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France
| | - Audrey Bethry
- Department of Polymers for Health and Biomaterials, IBMM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France
| | - Tina Vermonden
- Division of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, 3508 TB, The Netherlands
| | - Martina Viola
- Division of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, 3508 TB, The Netherlands
| | - Benjamin Nottelet
- Department of Polymers for Health and Biomaterials, IBMM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France
| | - Tatiana Budtova
- MINES Paris, PSL University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
| |
Collapse
|
19
|
Du Q, Bi J, Yi J, Zhao Y, Feng S, Ma Y. The role of fructose at a range of concentration on the texture and microstructure of freeze-dried pectin-cellulose matrix cryogel. J Texture Stud 2023; 54:763-774. [PMID: 37222133 DOI: 10.1111/jtxs.12777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 04/12/2023] [Accepted: 04/28/2023] [Indexed: 05/25/2023]
Abstract
Freeze-dried (FD) fruit and vegetable materials with a large amount of sugar are unstable. With the aim to understand the structure formation of FD products, the effects of fructose content on the texture and microstructure of FD matrix were investigated by using pectin-cellulose cryogel model. Cryogels containing fructose of 0-40% were produced using freeze-drying at three different primary drying temperatures of -40, -20, and 20°C. The resultant cryogels were characterized by texture profile analyzer, scanning electron microscope, and μCT. Results indicated that at drying temperature of -40°C, increasing fructose concentration promoted the hardness of the cryogels, and cryogels of 16% fructose obtained maximum hardness. Excessive fructose (≥20%) weakened the described hardness, while exhibiting stronger springiness and resilience. The microstructure showed that dense pores and increased wall thickness due to fructose aggregation were critical factors responsible for increased hardness. The porous structure as well as relatively large pore size were necessary for crispness, in addition, rigid pore wall with certain strength were also required. At the drying temperature of 20°C, large hetero-cavities dominated the microstructure of cryogels with 30% and 40% fructose, caused by melting inside during FD process. In this situation, lower Tm (-15.48 and -20.37°C) were responsible for cryogels' melting In conclusion, if possible, regulating fructose content and state may enable the precision texture design of FD fruit and vegetable foods.
Collapse
Affiliation(s)
- Qianqian Du
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Jinfeng Bi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Jianyong Yi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yuanyuan Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Shuhan Feng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Youchuan Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| |
Collapse
|
20
|
Zheng T, Pang Y, Zhang D, Wang Y, Zhang X, Leng H, Yu Y, Yang X, Cai Q. Integrated Piezoelectric/Conductive Composite Cryogel Creates Electroactive Microenvironment for Enhanced Bone Regeneration. Adv Healthc Mater 2023; 12:e2300927. [PMID: 37262422 DOI: 10.1002/adhm.202300927] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/26/2023] [Indexed: 06/03/2023]
Abstract
Natural bone tissue possesses inherent electrophysiological characteristics, displaying conductivity and piezoelectricity simultaneously; hence, the reconstruction of local electrical microenvironment at defect site provides an effective strategy to enhance osteogenesis. Herein, a composite cryogel-type scaffold (referred to as Gel-PD-CMBT) is developed for bone regeneration, utilizing gelatin (Gel) in combination with a conductive poly(ethylene dioxythiophene)/polystyrene sulfonate matrix and Ca/Mn co-doped barium titanate (CMBT) nanofibers as the piezoelectric filler. The incorporation of these components results in the formation of an integrated piezoelectric/conductive network within the scaffold, facilitating charge migration and yielding a conductivity of 0.59 S cm-1 . This conductive scaffold creates a promising electroactive microenvironment, which is capable of up-regulating biological responses. Furthermore, the interconnected porous structure of the Gel-PD-CMBT scaffold not only provides mechanical stability but also offered ample space for cellular and tissue ingrowth. This Gel-PD-CMBT scaffold demonstrates a greater capacity to promote cellular osteogenic differentiation in vitro and neo-bone formation in vivo. In summary, the Gel-PD-CMBT scaffold, with its integrated piezoelectricity and conductivity, effectively restores the local electroactive microenvironment, offering an ideal platform for the regeneration of electrophysiological bone tissue.
Collapse
Affiliation(s)
- Tianyi Zheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
- Sinopec Key Laboratory of Research and Application of Medical and Hygienic Materials, SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing, 100013, China
| | - Yanyun Pang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Daixing Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yue Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xu Zhang
- School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Huijie Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, China
| | - Yingjie Yu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| |
Collapse
|
21
|
Baydemir Peşint G, Cemek K, Zenger O, Anar BC, Oktay Başeğmez Hİ. Tannic acid purification from pomegranate peel via tannic acid imprinted particle-embedded cryogel column. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1229:123890. [PMID: 37748351 DOI: 10.1016/j.jchromb.2023.123890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/31/2023] [Accepted: 09/17/2023] [Indexed: 09/27/2023]
Abstract
Tannic acid (TA) is hydrolysable tannin found in the leaves and bark of many herbaceous and woody plants. Purification of TA is important due to its antibacterial, antihistaminic, antioxidant, antimutagenic and antitussive properties. In this study, 2-hydroxyethyl methacrylate-based TA-imprinted particle embedded cryogel (TA-MIP) was synthesized to purify TA from pomegranate peel. Furthermore, non-imprinted particle embedded cryogel (NIP) was synthesized to determine specific adsorption properties of TA-MIP, and control cryogel was synthesized without embedding procedure. The synthesized cryogel columns were characterized via scanning electron microscopy, Brunauer-Emmett-Teller surface area analysis, fourier-transform infrared spectroscopy, and swelling studies. Particle-embedding procedure resulted in a significantly higher specific surface area of particle-embedded columns (TA-MIP and NIP, 29 m2/g and 25 m2/g, respectively) than the specific surface area of control cryogel (9 m2/g). Adsorption studies were performed from aqueous solutions and maximum TA adsorption was found to be 34.4 mg/g for TA-MIP, 3.9 mg/g for NIP, and 2.8 mg/g for control cryogel. Within the scope of selectivity study, it was demonstrated that the synthesized columns have a high selectivity for TA against gallic acid (GA) and quercetin (QCT). Finally, purification of TA directly from pomegranate peel extract was studied and results were confirmed by HPLC. Furthermore, it has been proven that TA-MIP cryogel columns can be repeatedly used up to ten-times without any remarkable reduction in the TA adsorption amount.
Collapse
Affiliation(s)
- Gözde Baydemir Peşint
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkiye.
| | - Kardelen Cemek
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkiye
| | - Okan Zenger
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkiye
| | - Barış Can Anar
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Turkiye
| | | |
Collapse
|
22
|
Bilici Ç, Altunbek M, Afghah F, Tatar AG, Koç B. Embedded 3D Printing of Cryogel-Based Scaffolds. ACS Biomater Sci Eng 2023; 9:5028-5038. [PMID: 37463481 PMCID: PMC10428093 DOI: 10.1021/acsbiomaterials.3c00751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 07/07/2023] [Indexed: 07/20/2023]
Abstract
Cryogel-based scaffolds have attracted great attention in tissue engineering due to their interconnected macroporous structures. However, three-dimensional (3D) printing of cryogels with a high degree of precision and complexity is a challenge, since the synthesis of cryogels occurs under cryogenic conditions. In this study, we demonstrated the fabrication of cryogel-based scaffolds for the first time by using an embedded printing technique. A photo-cross-linkable gelatin methacryloyl (GelMA)-based ink composition, including alginate and photoinitiator, was printed into a nanoclay-based support bath. The layer-by-layer extruded ink was held in complex and overhanging structures with the help of pre-cross-linking of alginate with Ca2+ present in the support bath. The printed 3D structures in the support bath were frozen, and then GelMA was cross-linked at a subzero temperature under UV light. The printed and cross-linked structures were successfully recovered from the support bath with an integrated shape complexity. SEM images showed the formation of a 3D printed scaffold where porous GelMA cryogel was integrated between the cross-linked alginate hydrogels. In addition, they showed excellent shape recovery under uniaxial compression cycles of up to 80% strain. In vitro studies showed that the human fibroblast cells attached to the 3D printed scaffold and displayed spread morphology with a high proliferation rate. The results revealed that the embedded 3D printing technique enables the fabrication of cytocompatible cryogel based scaffolds with desired morphology and mechanical behavior using photo-cross-linkable bioink composition. The properties of the cryogels can be modified by varying the GelMA concentration, whereby various shapes of scaffolds can be fabricated to meet the specific requirements of tissue engineering applications.
Collapse
Affiliation(s)
- Çiğdem Bilici
- Nanotechnology
Research and Application Center, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
| | - Mine Altunbek
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
| | - Ferdows Afghah
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
| | - Asena G. Tatar
- Nanotechnology
Research and Application Center, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
| | - Bahattin Koç
- Nanotechnology
Research and Application Center, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
- Faculty
of Engineering and Natural Sciences, Sabanci
University, Tuzla, Istanbul 34956, Turkiye
| |
Collapse
|
23
|
Baydemir Peşint G, Eren Yüngeviş B, Perçin Demirçelik I. Enhanced invertase binding from baker's yeast via cryogels included boronic acids. World J Microbiol Biotechnol 2023; 39:267. [PMID: 37528302 DOI: 10.1007/s11274-023-03697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/08/2023] [Indexed: 08/03/2023]
Abstract
Invertase, an industrially significant glycoenzyme, was purified from baker's yeast using poly (2-Hydroxyethyl methacrylate) [PHema-Pba] cryogels functionalized with boronic acid. At subzero temperatures, PHema-Pba cryogels were synthesized and characterized using swelling tests, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The surface area of the PHema-Pba cryogels was 14 m2/g with a swelling ratio of 88.3% and macroporosity of 72%. The interconnected macropores of PHema-Pba cryogels were shown via scanning electron microscopy. Invertase binding capacity of PHema-Pba cryogel was evaluated by binding studies in different pH, temperature, and interaction time conditions and the maximum Invertase binding of PHema-Pba cryogel was found as 15.2 mg/g. and 23.7 fold Invertase purification was achieved from baker's yeast using PHema-Pba cryogels. The results show that PHema-Pba cryogels have high Invertase binding capacity and may be used as an alternative method for enzyme purification via boronate affinity systems.
Collapse
Affiliation(s)
- Gözde Baydemir Peşint
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Türkiye.
| | - Burcu Eren Yüngeviş
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Türkiye
| | | |
Collapse
|
24
|
Lencina MS, Piqueras CM, Vega DA, Villar MA, Del Barrio MC. Environmentally friendly starch/alginate aerogels for copper adsorption from aqueous media. A microstructural and kinetic study. J Environ Sci Health A Tox Hazard Subst Environ Eng 2023; 58:369-381. [PMID: 36946333 DOI: 10.1080/10934529.2023.2188847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
This work investigated the synthesis and characterization of alginate/starch porous materials and their application as copper ions adsorbents from aqueous media. Initially, pregel aqueous solutions with different biopolymer concentrations (1, 3, and 5% w/w) and alginate contents (25, 50, and 75% w/w) were prepared. Hydrogel formation was performed by internal and external gelation methods. Finally, the drying step was done via CO2sc leading to aerogels and via freeze-drying leading to cryogels. Process parameters influence on the final properties of materials was evaluated by BET isotherms, SEM, EDS, and TGA. Regardless the gelation method applied, interesting materials with meso- and macro-pore structure were prepared from pregel mixtures with 3% w/w biopolymer concentration and an alginate content of only 25% w/w. Low alginate content reduces the final cost of the materials. Concerning copper removal, the adsorption data were well fitted to the pseudo-second order kinetic model for aerogels and cryogels, showing aerogels the highest adsorption capacity (40 mg/g) and removal efficiency (∼ 92%). Materials demonstrated excellent reusability throughout five consecutive adsorption/desorption cycles. Hence, environmentally friendly materials with a high practical value as low-cost bioadsorbents were synthesized, having great performance in the removal of copper ions from aqueous solution.
Collapse
Affiliation(s)
- María S Lencina
- Instituto de Física del Sur, IFISUR (UNS-CONICET), Bahía Blanca, Argentina
- Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Cristian M Piqueras
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Bahía Blanca, Argentina
- Departamento de Ingeniería Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Daniel A Vega
- Instituto de Física del Sur, IFISUR (UNS-CONICET), Bahía Blanca, Argentina
- Departamento de Física, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Marcelo A Villar
- Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Bahía Blanca, Argentina
- Departamento de Ingeniería Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - María C Del Barrio
- Instituto de Física del Sur, IFISUR (UNS-CONICET), Bahía Blanca, Argentina
- Departamento de Ingeniería Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
| |
Collapse
|
25
|
Agustin MB, Lehtonen M, Kemell M, Lahtinen P, Oliaei E, Mikkonen KS. Lignin nanoparticle-decorated nanocellulose cryogels as adsorbents for pharmaceutical pollutants. J Environ Manage 2023; 330:117210. [PMID: 36608603 DOI: 10.1016/j.jenvman.2022.117210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Adsorption is a relatively simple wastewater treatment method that has the potential to mitigate the impacts of pharmaceutical pollution. This requires the development of reusable adsorbents that can simultaneously remove pharmaceuticals of varying chemical structure and properties. Here, the adsorption potential of nanostructured wood-based adsorbents towards different pharmaceuticals in a multi-component system was investigated. The adsorbents in the form of macroporous cryogels were prepared by anchoring lignin nanoparticles (LNPs) to the nanocellulose network via electrostatic attraction. The naturally anionic LNPs were anchored to cationic cellulose nanofibrils (cCNF) and the cationic LNPs (cLNPs) were combined with anionic TEMPO-oxidized CNF (TCNF), producing two sets of nanocellulose-based cryogels that also differed in their overall surface charge density. The cryogels, prepared by freeze-drying, showed layered cellulosic sheets randomly decorated with spherical lignin on the surface. They exhibited varying selectivity and efficiency in removing pharmaceuticals with differing aromaticity, polarity and ionic characters. Their adsorption potential was also affected by the type (unmodified or cationic), amount and morphology of the lignin nanomaterials, as well as the pH of the pharmaceutical solution. Overall, the findings revealed that LNPs or cLNPs can act as functionalizing and crosslinking agents to nanocellulose-based cryogels. Despite the decrease in the overall positive surface charge, the addition of LNPs to the cCNF-based cryogels showed enhanced adsorption, not only towards the anionic aromatic pharmaceutical diclofenac but also towards the aromatic cationic metoprolol (MPL) and tramadol (TRA) and neutral aromatic carbamazepine. The addition of cLNPs to TCNF-based cryogels improved the adsorption of MPL and TRA despite the decrease in the net negative surface charge. The improved adsorption was attributed to modes of removal other than electrostatic attraction, and they could be π-π aromatic ring or hydrophobic interactions brought by the addition of LNPs or cLNPs. However, significant improvement was only found if the ratio of LNPs or cLNPs to nanocellulose was 0.6:1 or higher and with spherical lignin nanomaterials. As crosslinking agents, the LNPs or cLNPs affected the rheological behavior of the gels, and increased the firmness and decreased the water holding capacity of the corresponding cryogels. The resistance of the cryogels towards disintegration with exposure to water also improved with crosslinking, which eventually enabled the cryogels, especially the TCNF-based one, to be regenerated and reused for five cycles of adsorption-desorption experiment for the model pharmaceutical MPL. Thus, this study opened new opportunities to utilize LNPs in providing nanocellulose-based adsorbents with additional functional groups, which were otherwise often achieved by rigorous chemical modifications, at the same time, crosslinking the nanocellulose network.
Collapse
Affiliation(s)
- Melissa B Agustin
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, P.O. Box 66, FI-00014, University of Helsinki, Finland.
| | - Mari Lehtonen
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, P.O. Box 66, FI-00014, University of Helsinki, Finland
| | - Marianna Kemell
- Department of Chemistry, Faculty of Science, P.O. Box 55, FI-00014, University of Helsinki, Finland
| | - Panu Lahtinen
- VTT, Technical Research Centre of Finland, P.O. Box 1000, FIN-02044, VTT, Finland
| | - Erfan Oliaei
- Department of Fiber and Polymer Technology, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
| | - Kirsi S Mikkonen
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, P.O. Box 66, FI-00014, University of Helsinki, Finland; Helsinki Institute of Sustainability Science, P.O. Box 65, FI-00014, University of Helsinki, Finland
| |
Collapse
|
26
|
Xuan H, Du Q, Li R, Shen X, Zhou J, Li B, Jin Y, Yuan H. Shape-Memory-Reduced Graphene/Chitosan Cryogels for Non-Compressible Wounds. Int J Mol Sci 2023; 24:ijms24021389. [PMID: 36674906 PMCID: PMC9863902 DOI: 10.3390/ijms24021389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
In this study, an antibacterial and shape-memory chitosan cryogel with high blood absorption and fast recovery from non-compressible wounds was prepared using a one-step method. Herein, we prepared a shape-memory-reduced graphene/chitosan (rGO-CTS) cryogel using a one-step method with a frozen mixing solution of chitosan, citric acid, dopamine, and graphene oxide, before treating it with alkaline solutions. The alkaline solution not only promoted the double cross-linking of chitosan but also induced dopamine to form polydopamine-reducing graphene oxide. Scanning electron microscope (SEM) images showed that the rGO-CTS cryogel possessed a uniform porous network structure, attributing excellent water-induced shape-memory properties. Moreover, the rGO-CTS cryogel exhibited good mechanical properties, antibacterial activity, and biocompatibility. In mouse liver trauma models, the rGO-CTS cryogel showed good blood clotting and hemostatic capabilities. Therefore, this composite cryogel has great potential as a new hemostatic material for application to non-compressible wounds.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yan Jin
- Correspondence: (Y.J.); (H.Y.)
| | | |
Collapse
|
27
|
Yin F, Yang H, Liu X, Mo Y, Ye T, Cao H, Yuan M, Xu F. Aqueous phase synthesis of ion-imprinted cryogel for paper-based colorimetric detection of As(V) with high selectivity. Mikrochim Acta 2022; 190:35. [PMID: 36542186 DOI: 10.1007/s00604-022-05564-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/01/2022] [Indexed: 12/24/2022]
Abstract
A novel hydrophilic As(V) ion-imprinted cryogel (IIC) was green prepared by cryogelation in aqueous environment which was coincident with the adsorption condition and can improve the specific recognition performance. The methacrylamido propyl trimethyl ammonium chloride (MPTAC) was selected as the functional monomer and the saturated adsorption capacity of the prepared IIC and NIC were 55.0 mg/g and 29.4 mg/g, and with high imprinting factor of 1.87. Additionally, the prepared IIC showed admirable reusability and high selectivity, and the recovery was in the range 81.2-97.9% with RSD range of 1.9-4.3%, which was similar to the value obtained by hydride generation atomic absorption spectrometry. IIC can be used as solid material for colorimetric detection at the ultraviolet wavelength of 858 nm without color interference of material matrix, in the range 5-200 μg/L (R2 = 0.990) with a detection limit of 0.970 µg/L. Obviously, this synthetic strategy provides a simple, efficient, and green method for the preparation of water-compatible ion-imprinted polymers providing selective separation and detection of trace As(V) in real complex samples.
Collapse
Affiliation(s)
- Fengqin Yin
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Hongzhi Yang
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Xueting Liu
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Yeling Mo
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Tai Ye
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Hui Cao
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Min Yuan
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Fei Xu
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China.
| |
Collapse
|
28
|
Yamamoto T, Randriantsilefisoa R, Sprecher CM, D’Este M. Fabrication of Collagen-Hyaluronic Acid Cryogels by Directional Freezing Mimicking Cartilage Arcade-like Structure. Biomolecules 2022; 12:biom12121809. [PMID: 36551237 PMCID: PMC9775592 DOI: 10.3390/biom12121809] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The internal architecture of tissue-like constructs is fundamental to their structural and biological functions. Here, we introduce a simple and robust method to fabricate cryogels based on derivatized extracellular matrix (ECM) macromolecules with porosity arranged according to the typical Benninghoff zonal architecture of articular cartilage. To obtain this arcade-like structure, the technique used the growth of ice crystals from copper pins at cryogenic temperatures. The directional cryogel formation enabled the organized growth of ice crystals over a large distance (>4 mm). The compositional properties were achieved by forming double networks (DNs) of hyaluronic acid and collagen derivatives (MeHA and CollGTA, respectively), which also served to improve the mechanical properties of the otherwise weak collagen scaffolds. Compositionally biomimetic and more resilient MeHA-CollGTA DNs (Young's modulus ≈ 200 kilopascals) were therefore produced. The technique presented expands the fabrication methods available for providing ECM macromolecules with architectural elements mimicking cartilage complexity.
Collapse
|
29
|
Boroda A, Privar Y, Maiorova M, Beleneva I, Eliseikina M, Skatova A, Marinin D, Bratskaya S. Chitosan versus Carboxymethyl Chitosan Cryogels: Bacterial Colonization, Human Embryonic Kidney 293T Cell Culturing and Co-Culturing. Int J Mol Sci 2022; 23:ijms232012276. [PMID: 36293131 PMCID: PMC9602999 DOI: 10.3390/ijms232012276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
The potential of chitosan and carboxymethyl chitosan (CMC) cryogels cross-linked with diglycidyl ether of 1,4-butandiol (BDDGE) and poly(ethylene glycol) (PEGDGE) have been compared in terms of 3D culturing HEK-293T cell line and preventing the bacterial colonization of the scaffolds. The first attempts to apply cryogels for the 3D co-culturing of bacteria and human cells have been undertaken toward the development of new models of host-pathogen interactions and bioimplant-associated infections. Using a combination of scanning electron microscopy, confocal laser scanning microscopy, and flow cytometry, we have demonstrated that CMC cryogels provided microenvironment stimulating cell-cell interactions and the growth of tightly packed multicellular spheroids, while cell-substrate interactions dominated in both chitosan cryogels, despite a significant difference in swelling capacities and Young's modulus of BDDGE- and PEGDGE-cross-linked scaffolds. Chitosan cryogels demonstrated only mild antimicrobial properties against Pseudomonas fluorescence, and could not prevent the formation of Staphylococcus aureus biofilm in DMEM media. CMC cryogels were more efficient in preventing the adhesion and colonization of both P. fluorescence and S. aureus on the surface, demonstrating antifouling properties rather than the ability to kill bacteria. The application of CMC cryogels to 3D co-culture HEK-293T spheroids with P. fluorescence revealed a higher resistance of human cells to bacterial toxins than in the 2D co-culture.
Collapse
Affiliation(s)
- Andrey Boroda
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17 Palchevskogo St., 690041 Vladivostok, Russia
| | - Yuliya Privar
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 Prosp.100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Mariya Maiorova
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17 Palchevskogo St., 690041 Vladivostok, Russia
| | - Irina Beleneva
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17 Palchevskogo St., 690041 Vladivostok, Russia
| | - Marina Eliseikina
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17 Palchevskogo St., 690041 Vladivostok, Russia
| | - Anna Skatova
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 Prosp.100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Dmitry Marinin
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 Prosp.100-Letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Svetlana Bratskaya
- Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 Prosp.100-Letiya Vladivostoka, 690022 Vladivostok, Russia
- Correspondence:
| |
Collapse
|
30
|
Chen Y, Qiu X, Liu H, Chen S. Preparation of a laminated structured polyethyleneimine cryogel for carbon capture. J Environ Manage 2022; 317:115400. [PMID: 35653848 DOI: 10.1016/j.jenvman.2022.115400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
A cryogel solid amine adsorbent with a laminated structure has been prepared by crosslinking polyethylenimine (PEI) with ethylene glycol diglycidyl ether (EGDE) at a low temperature via liquid nitrogen treatment and freeze-drying. The effects of cryogenic treatment on the morphology of the cryogels were investigated. The liquid nitrogen treatment and freeze drying were critical to create the layered structure. The fast formation of ice crystals at 77 K served as a template which directed the ordered lamellar structure of the PEI and EGDE cross-linked polymer networks. The PEI cryogel adsorbent showed excellent CO2 adsorption performance both in dry and wet conditions. In dry conditions, the PEI-gel-5-0.25 cryogel showed a 5.60 mmol/g of CO2 adsorption capacity at 75 °C. After being swelled with water, the PEI-gel-15-0.25 cryogel showed an extremely high CO2 adsorption capacity of 11.39 mmol/g at 25 °C. The adsorption behaviors of adsorbents with varied water contents were explained using kinetic simulations and intraparticle diffusion simulations. It was found that the presence of water can significantly enhance the diffusion process. The regeneration performance was examined in both dry and wet conditions. After 20 adsorption-desorption cycles, the adsorption capacity of the regenerated PEI cryogel had barely decreased, indicating reliable regeneration stability.
Collapse
Affiliation(s)
- Yangguan Chen
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Xianyu Qiu
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Haorui Liu
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Shuixia Chen
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China; Materials Science Institute, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| |
Collapse
|
31
|
Juan LT, Lin SH, Wong CW, Jeng US, Huang CF, Hsu SH. Functionalized Cellulose Nanofibers as Crosslinkers to Produce Chitosan Self-Healing Hydrogel and Shape Memory Cryogel. ACS Appl Mater Interfaces 2022; 14:36353-36365. [PMID: 35930741 DOI: 10.1021/acsami.2c07170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cellulose nanofibers functionalized with multiple aldehyde group were synthesized as the crosslinker to produce composite self-healing hydrogel and shape memory cryogel from chitosan. The hydrogel possessed effective self-healing (∼100% efficiency) and shear-thinning properties. The cryogel had macroporous structure, large water absorption (>4300%), and high compressibility. Both hydrogel and cryogel were injectable. In particular, the cryogel (nanocellulose/chitosan 1:6) revealed thermally induced shape memory, the mechanism of which was elucidated by in situ small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) as changes in orientation of the induced crystalline structure during the shape memory program. The shape memory cryogel with a large size (15 mm × 10 mm × 1.1 mm) injected through a 16 G syringe needle was recoverable in 37 °C water. Moreover, the cryogel was cytocompatible and promoted cell growth. The nanocellulose-chitosan composite hydrogel and cryogel are injectable and degradable biomaterials with adjustable mechanical properties for potential medical applications.
Collapse
Affiliation(s)
- Li-Ting Juan
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Shih-Ho Lin
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Chui-Wei Wong
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan, ROC
| | - Chih-Feng Huang
- Department of Chemical Engineering, i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung 40227, Taiwan, ROC
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli 35053, Taiwan, ROC
| |
Collapse
|
32
|
Aslıyüce S, Mattiasson B, Denizli A. Preparation of Staphylococcal Protein A Imprinted Supermacroporous Cryogel Beads. Methods Mol Biol 2022; 2466:261-273. [PMID: 35585324 DOI: 10.1007/978-1-0716-2176-9_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Protein A is the most commonly used ligand in IgG purification due to its specific binding to the Fc receptor of most immunoglobulins, making it commercially important. Molecular imprinting is a method based on the selective recognition of various molecules. Molecular imprinted polymers are materials that are easy to prepare, durable, cheap and have molecular recognition capability. Cryogels are prepared by radical polymerization in a partially frozen environment. The unique structure of cryogels combined with osmotic, chemical and mechanical stability make them attractive chromatography matrices for a variety of biological compounds/specimens (plasmids, pathogens, cells). In this protocol, protein A imprinted supermacroporous poly(2-hydroxyethyl methacrylate) cryogels were prepared in spherical form for protein A purification. The characterization of the prepared cryogels were made by swelling test, scanning electron microscopy (SEM), Fourier transform infrared spectrophotometer (FTIR), and Brunauer-Emmett-Teller (BET) surface area analysis. After characterization, optimum conditions for protein A adsorption were determined in the batch system. The maximum protein A adsorption capacity was determined after optimization of the imprinted cryogels. Protein A relative selectivity coefficients of imprinted cryogels were examined for both Fc and protein G. Protein A was isolated from the bacterial cell wall using fast performance liquid chromatography (FPLC). The separated protein A was determined by sodium dodecyl sulfate gel electrophoresis (SDS-PAGE). In the last stage, the reusability of the cryogel was examined.
Collapse
Affiliation(s)
- Sevgi Aslıyüce
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Bo Mattiasson
- Department of Biotechnology, Lund University, Lund, Sweden
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
| |
Collapse
|
33
|
Perçin I, Idil N, Denizli A. Preparation of Molecularly Imprinted Poly(N-Isopropylacrylamide) Thermosensitive Based Cryogels. Methods Mol Biol 2022; 2466:249-260. [PMID: 35585323 DOI: 10.1007/978-1-0716-2176-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cryogels are defined as polymeric gel matrices with interconnected macropores providing an advantage to be efficient carriers enabling unhindered diffusion of interested molecule. Cryogels could be easily prepared with the combination of molecular imprinting. Molecular imprinting technology provides selective and sensitive recognition for biomolecules. Immunoglobulin G (IgG) is a main effector component in human response. It is recently well recognized that the purification strategies for IgG have intensively gained attention to treat immune defects. Several methods including affinity chromatography have been applied for the purification of IgG from complex media. The purification of IgG plays a crucial role in medical applications using several materials. Among these, cryogels have been widely applied for the purification of several biomolecules. They offer to create low-cost affinity systems with high chemical and physical stability. Above all, temperature sensitive polymers enable a reversible phase transition against small temperature changes, by the way, reversible swelling and shrinking manner is observed.In this chapter, immunoglobulin G imprinted thermosensitive poly(N-isopropylacrylamide-N methacryloyl-(l)-histidine) [p(NIPA-MAH)/IgG-MIP] monolithic cryogel is explained. The preparation and characterization of cryogels are summarized. In addition, IgG binding studies with different parameters are briefly described. Herein, an effective design principle is presented to create imprinted temperature-sensitive cryogels for IgG purification. A p(NIPA-MAH)/IgG-MIP monolithic cryogel was synthesized for IgG purification. Afterward, IgG binding capacity of p(NIPA-MAH)/IgG-MIP cryogels was examined in different experimental conditions. Apart from these, selectivity of the p(NIPA-MAH)/IgG-MIP cryogel was shown by comparing IgG binding capacity of nonimprinted [p(NIPA-MAH)/NIP] one. Finally, the IgG purification ability of the p(NIPA-MAH)/IgG-MIP cryogel from human plasma was demonstrated proving its application in affinity chromatography using real sample.
Collapse
Affiliation(s)
- Işık Perçin
- Department of Biology, Hacettepe University, Ankara, Turkey
| | - Neslihan Idil
- Department of Biology, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
| |
Collapse
|
34
|
Dragan ES, Dinu MV, Ghiorghita CA, Lazar MM, Doroftei F. Preparation and Characterization of Semi-IPN Cryogels Based on Polyacrylamide and Poly( N, N-dimethylaminoethyl methacrylate); Functionalization of Carrier with Monochlorotriazinyl-β-cyclodextrin and Release Kinetics of Curcumin. Molecules 2021; 26:molecules26226975. [PMID: 34834067 PMCID: PMC8622513 DOI: 10.3390/molecules26226975] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/13/2021] [Accepted: 11/16/2021] [Indexed: 11/16/2022] Open
Abstract
Curcumin (CCM) is a natural hydrophobic polyphenol known for its numerous applications in the food industry as a colorant or jelly stabilizer, and in the pharmaceutical industry due to its anti-inflammatory, antibacterial, antioxidant, anti-cancer, and anti-Alzheimer properties. However, the large application of CCM is limited by its poor solubility in water and low stability. To enhance the bioavailability of CCM, and to protect it against the external degradation agents, a novel strategy, which consists in the preparation of semi-interpenetrating polymer networks, (s-IPNs) based on poly(N,N-dimethylaminoethyl methacrylate) entrapped in poly(acrylamide) networks, by a cryogelation technique, was developed in this work. All s-IPN cryogels were characterized by SEM, EDX, FTIR, and swelling at equilibrium as a function of pH. Functionalization of semi-IPN cryogel with monochlorotriazinyl-β-cyclodextrin (MCT-β-CD) led to IPN cryogel. The release profile of CCM from the composite cryogels was investigated at 37 °C, in pH 3. It was found that the cumulative release increased with the increase of the carrier hydrophobicity, as a result of increasing the cross-linking degree, the content and the molar mass of PDMAEMA. Fitting Higuchi, Korsmeyer–Peppas, and first order kinetic models on the CCM release profiles indicated the diffusion as the main driving force of drug release from the composite cryogels.
Collapse
|
35
|
Bektas EI, Gurel Pekozer G, Kök FN, Torun Kose G. Evaluation of natural gum-based cryogels for soft tissue engineering. Carbohydr Polym 2021; 271:118407. [PMID: 34364550 DOI: 10.1016/j.carbpol.2021.118407] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/10/2021] [Accepted: 07/04/2021] [Indexed: 01/18/2023]
Abstract
In this study, three natural biomaterials, Locust bean gum (LBG), Xanthan gum (XG), and Mastic gum (MG), were combined to form cryogel scaffolds. Thermal and chemical characterizations revealed the successful blend formation from LBG-XG (LX) and LBG-XG-MG (LXM) polymers. All blends resulted in macro-porous scaffolds with interconnected pore structures under the size of 400 μm. The swollen cryogels had similar mechanical properties compared with other polysaccharide-based cryogels. The mean tensile and compressive modulus values of the wet cryogels were in the range of 3.5-11.6 kPa and 82-398 kPa, respectively. The sustained release of the small molecule Kartogenin from varying concentrations and ratios of cryogels was in between 32 and 66% through 21 days of incubation. Physical, mechanical, and chemical properties make LX and LXM polysaccharide-based cryogels promising candidates for cartilage and other soft tissue engineering, and drug delivery applications.
Collapse
Affiliation(s)
- Ezgi Irem Bektas
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
| | - Gorke Gurel Pekozer
- Department of Biomedical Engineering, Faculty of Electrical and Electronics Engineering, Yildiz Technical University, Istanbul 34220, Turkey.
| | - Fatma Neşe Kök
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Istanbul Technical University, Istanbul 34467, Turkey.
| | - Gamze Torun Kose
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey.
| |
Collapse
|
36
|
Choodum A, Lamthornkit N, Boonkanon C, Taweekarn T, Phatthanawiwat K, Sriprom W, Limsakul W, Chuenchom L, Wongniramaikul W. Greener Monolithic Solid Phase Extraction Biosorbent Based on Calcium Cross-Linked Starch Cryogel Composite Graphene Oxide Nanoparticles for Benzo(a)pyrene Analysis. Molecules 2021; 26:6163. [PMID: 34684744 PMCID: PMC8539787 DOI: 10.3390/molecules26206163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
Benzo(a)pyrene (BaP) has been recognized as a marker for the detection of carcinogenic polycyclic aromatic hydrocarbons. In this work, a novel monolithic solid-phase extraction (SPE) sorbent based on graphene oxide nanoparticles (GO) in starch-based cryogel composite (GO-Cry) was successfully prepared for BaP analysis. Rice flour and tapioca starch (gel precursors) were gelatinized in limewater (cross-linker) under alkaline conditions before addition of GO (filler) that can increase the ability to extract BaP up to 2.6-fold. BaP analysis had a linear range of 10 to 1000 µgL-1 with good linearity (R2 = 0.9971) and high sensitivity (4.1 ± 0.1 a.u./(µgL-1)). The limit of detection and limit of quantification were 4.21 ± 0.06 and 14.04 ± 0.19 µgL-1, respectively, with excellent precision (0.17 to 2.45%RSD). The accuracy in terms of recovery from spiked samples was in the range of 84 to 110% with no significant difference to a C18 cartridge. GO-Cry can be reproducibly prepared with 2.8%RSD from 4 lots and can be reused at least 10 times, which not only helps reduce the analysis costs (~0.41USD per analysis), but also reduces the resultant waste to the environment.
Collapse
Affiliation(s)
- Aree Choodum
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Nareumon Lamthornkit
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Chanita Boonkanon
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Tarawee Taweekarn
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Kharittha Phatthanawiwat
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Wilasinee Sriprom
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Wadcharawadee Limsakul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| | - Laemthong Chuenchom
- Center of Excellence for Innovation in Chemistry, Division of Physical Science, Faculty of Science, Hat Yai Campus, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand;
| | - Worawit Wongniramaikul
- Integrated Science and Technology Research Center, Faculty of Technology and Environment, Phuket Campus, Prince of Songkla University, Kathu, Phuket 83120, Thailand; (N.L.); (C.B.); (T.T.); (K.P.); (W.S.); (W.L.); (W.W.)
| |
Collapse
|
37
|
Wartenberg A, Weisser J, Schnabelrauch M. Glycosaminoglycan-Based Cryogels as Scaffolds for Cell Cultivation and Tissue Regeneration. Molecules 2021; 26:5597. [PMID: 34577067 PMCID: PMC8466427 DOI: 10.3390/molecules26185597] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/08/2021] [Accepted: 09/12/2021] [Indexed: 12/12/2022] Open
Abstract
Cryogels are a class of macroporous, interconnective hydrogels polymerized at sub-zero temperatures forming mechanically robust, elastic networks. In this review, latest advances of cryogels containing mainly glycosaminoglycans (GAGs) or composites of GAGs and other natural or synthetic polymers are presented. Cryogels produced in this way correspond to the native extracellular matrix (ECM) in terms of both composition and molecular structure. Due to their specific structural feature and in addition to an excellent biocompatibility, GAG-based cryogels have several advantages over traditional GAG-hydrogels. This includes macroporous, interconnective pore structure, robust, elastic, and shape-memory-like mechanical behavior, as well as injectability for many GAG-based cryogels. After addressing the cryogelation process, the fabrication of GAG-based cryogels and known principles of GAG monomer crosslinking are discussed. Finally, an overview of specific GAG-based cryogels in biomedicine, mainly as polymeric scaffold material in tissue regeneration and tissue engineering-related controlled release of bioactive molecules and cells, is provided.
Collapse
Affiliation(s)
- Annika Wartenberg
- Biomaterials Department, INNOVENT e.V., Pruessingstrasse 27B, 07745 Jena, Germany;
| | | | | |
Collapse
|
38
|
Joukhdar H, Seifert A, Jüngst T, Groll J, Lord MS, Rnjak-Kovacina J. Ice Templating Soft Matter: Fundamental Principles and Fabrication Approaches to Tailor Pore Structure and Morphology and Their Biomedical Applications. Adv Mater 2021; 33:e2100091. [PMID: 34236118 DOI: 10.1002/adma.202100091] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/22/2021] [Indexed: 06/13/2023]
Abstract
Porous scaffolds are widely used in biomedical applications where pore size and morphology influence a range of biological processes, including mass transfer of solutes, cellular interactions and organization, immune responses, and tissue vascularization, as well as drug delivery from biomaterials. Ice templating, one of the most widely utilized techniques for the fabrication of porous materials, allows control over pore morphology by controlling ice formation in a suspension of solutes. By fine-tuning freezing and solute parameters, ice templating can be used to incorporate pores with tunable morphological features into a wide range of materials using a simple, accessible, and scalable process. While soft matter is widely ice templated for biomedical applications and includes commercial and clinical products, the principles underpinning its ice templating are not reviewed as well as their inorganic counterparts. This review describes and critically evaluates fundamental principles, fabrication and characterization approaches, and biomedical applications of ice templating in polymer-based biomaterials. It describes the utility of porous scaffolds in biomedical applications, highlighting biological mechanisms impacted by pore features, outlines the physical and thermodynamic mechanisms underpinning ice templating, describes common fabrication setups, critically evaluates complexities of ice templating specific to polymers, and discusses future directions in this field.
Collapse
Affiliation(s)
- Habib Joukhdar
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Annika Seifert
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070, Würzburg, Germany
| | - Tomasz Jüngst
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070, Würzburg, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070, Würzburg, Germany
| | - Megan S Lord
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jelena Rnjak-Kovacina
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| |
Collapse
|
39
|
Abstract
Cryogels are matrices that are formed in moderately frozen solutions of monomeric or polymeric precursors. They have the advantages of interconnected macropores, structural stability, and compressibility. Meanwhile, thermally induced shape memory is an attractive feature of certain functional materials. Although there have been several studies concerning shape-memory cryogels, little work has been conducted on shape-memory cryogels with biodegradability. In this study, a water-based biodegradable difunctional polyurethane with a shape-memory property was synthesized and used as the nanoparticulate crosslinker to react with chitosan to form a shape-memory cryogel. The thermally induced shape-memory mechanism was clarified using in situ wide-angle X-ray scattering (WAXS) and small-angle X-ray scattering (SAXS) during the shape-memory process. The in situ WAXS showed the changes of crystallinity in the crosslinker and the cryogel during the shape fixation and recovery processes. The in situ SAXS revealed the orientation of crystallinity of the crosslinker and the cryogel as the mechanism for shape memory. The strip-shape cryogel was deformed at 50 °C to U-shape and fixed at - 20 °C, which was squeezable at 25 °C and returned to the strip-shape at 50 °C in air. The shape recovery was further tested in water at two different temperatures. The injected cryogel recovered the U-shape in 4 °C water, representing elastic recovery, and transformed to a long strip in 37 °C water, representing the switchable shape memory. Moreover, the shape-memory cryogel sheet with a large dimension (10 mm × 10 mm × 1.1 mm cryogel sheet) or with complex structures (N, T, and U shapes) could be fixed as a rod, injected through a 16 G needle, and return to its original shape in 37 °C water, all of which could not be achieved by the conventional cryogel. Human mesenchymal stem cells grown in the shape-memory cryogel scaffolds displayed long-term proliferation and chondrogenic potential. Their unique injectability and cytocompatibility suggested potential applications of shape-memory cryogels as injectable and expandable templates for tissue engineering and minimally invasive surgery.
Collapse
Affiliation(s)
- Chih-Yu Fu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei Taiwan 10617, Republic of China
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, Hsinchu, Taiwan 30076, Republic of China
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei Taiwan 10617, Republic of China
| |
Collapse
|
40
|
Zheng H, Hajizadeh S, Gong H, Lin H, Ye L. Preparation of Boronic Acid-Functionalized Cryogels Using Modular and Clickable Building Blocks for Bacterial Separation. J Agric Food Chem 2021; 69:135-145. [PMID: 33371673 PMCID: PMC7871328 DOI: 10.1021/acs.jafc.0c06052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Composite cryogels containing boronic acid ligands are synthesized for effective separation and isolation of bacteria. The large and interconnected pores in cryogels enable fast binding and release of microbial cells. To control bacterial binding, an alkyne-tagged boronic acid ligand is conjugated to azide-functionalized cryogel via the Cu(I)-catalyzed azide-alkyne cycloaddition reaction. The boronic acid-functionalized cryogel binds Gram-positive and Gram-negative bacteria through reversible boronate ester bonds, which can be controlled by pH and simple monosaccharides. To increase the capacity of affinity separation, a new approach is used to couple the alkyne-tagged phenylboronic acid to cryogel via an intermediate polymer layer that provides multiple immobilization sites. The morphology and chemical composition of the composite cryogel are characterized systematically. The capability of the composite cryogel for the separation of Gram-positive and Gram-negative bacteria is investigated. The binding capacities of the composite cryogel for Escherichia coli and Staphylococcus epidermidis are 2.15 × 109 and 3.36 × 109 cfu/g, respectively. The bacterial binding of the composite cryogel can be controlled by adjusting pH. The results suggest that the composite cryogel may be used as affinity medium for rapid separation and isolation of bacteria from complex samples.
Collapse
Affiliation(s)
- Hongwei Zheng
- Division
of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
- Food
Safety Laboratory, College of Food Science & Engineering, Ocean University of China, Qingdao 266003, China
| | - Solmaz Hajizadeh
- Division
of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Haiyue Gong
- Division
of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| | - Hong Lin
- Food
Safety Laboratory, College of Food Science & Engineering, Ocean University of China, Qingdao 266003, China
| | - Lei Ye
- Division
of Pure and Applied Biochemistry, Department of Chemistry, Lund University, Box 124, 221 00 Lund, Sweden
| |
Collapse
|
41
|
Chambre L, Rosselle L, Barras A, Aydin D, Loczechin A, Gunbay S, Sanyal R, Skandrani N, Metzler-Nolte N, Bandow JE, Boukherroub R, Szunerits S, Sanyal A. Photothermally Active Cryogel Devices for Effective Release of Antimicrobial Peptides: On-Demand Treatment of Infections. ACS Appl Mater Interfaces 2020; 12:56805-56814. [PMID: 33289537 DOI: 10.1021/acsami.0c17633] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There has been significant interest in the use of peptides as antimicrobial agents, and peptide containing hydrogels have been proposed as biological scaffolds for various applications. Limited stability and rapid clearance of small molecular weight peptides pose challenges to their widespread implementation. As a common approach, antibacterial peptides are physically loaded into hydrogel scaffolds, which leads to continuous release through the passive mode with spatial control but provides limited control over drug dosage. Although utilization of peptide covalent linkage onto hydrogels addresses partially this problem, the peptide release is commonly too slow. To alleviate these challenges, in this work, maleimide-modified antimicrobial peptides are covalently conjugated onto furan-based cryogel (CG) scaffolds via the Diels-Alder cycloaddition at room temperature. The furan group offers a handle for specific loading of the peptides, thus minimizing passive and burst drug release. The porous nature of the CG matrix provides rapid loading and release of therapeutic peptides, apart from high water uptake. Interfacing the peptide adduct containing a CG matrix with a reduced graphene oxide-modified Kapton substrate allows "on-demand" photothermal heating upon near-infrared (NIR) irradiation. A fabricated photothermal device enables tunable and efficient peptide release through NIR exposure to kill bacteria. Apart from spatial confinement offered by this CG-based bandage, the selective ablation of planktonic Staphylococcus aureus is demonstrated. It can be envisioned that this modular "on-demand" peptide-releasing device can be also employed for other topical applications by appropriate choice of therapeutic peptides.
Collapse
Affiliation(s)
- Laura Chambre
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Léa Rosselle
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
- TISSUEAEGIS SAS, 14E Rue Pierre de Coubertin, Dijon 21000, France
| | - Alexandre Barras
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Duygu Aydin
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Aleksandra Loczechin
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Suzan Gunbay
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
- RS Research, Teknopark Istanbul, Pendik, Istanbul 34912, Turkey
| | - Nadia Skandrani
- TISSUEAEGIS SAS, 14E Rue Pierre de Coubertin, Dijon 21000, France
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, 44801 Bochum, Germany
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille F-59000, France
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Bebek, Istanbul 34342, Turkey
- Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| |
Collapse
|
42
|
Villa E, Arteaga-Marrero N, González-Fernández J, Ruiz-Alzola J. Bimodal microwave and ultrasound phantoms for non-invasive clinical imaging. Sci Rep 2020; 10:20401. [PMID: 33230246 PMCID: PMC7684317 DOI: 10.1038/s41598-020-77368-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 11/05/2020] [Indexed: 11/25/2022] Open
Abstract
A precise and thorough methodology is presented for the design and fabrication of bimodal phantoms to be used in medical microwave and ultrasound applications. Dielectric and acoustic properties of human soft tissues were simultaneously mimicked. The phantoms were fabricated using polyvinyl alcohol cryogel (PVA-C) as gelling agent at a 10% concentration. Sucrose was employed to control the dielectric properties in the microwave spectrum, whereas cellulose was used as acoustic scatterer for ultrasound. For the dielectric properties at microwaves, a mathematical model was extracted to calculate the complex permittivity of the desired mimicked tissues in the frequency range from 500 MHz to 20 GHz. This model, dependent on frequency and sucrose concentration, was in good agreement with the reference Cole-Cole model. Regarding the acoustic properties, the speed of sound and attenuation coefficient were employed for validation. In both cases, the experimental data were consistent with the corresponding theoretical values for soft tissues. The characterization of these PVA-C phantoms demonstrated a significant performance for simultaneous microwave and ultrasound operation. In conclusion, PVA-C has been validated as gelling agent for the fabrication of complex multimodal phantoms that mimic soft tissues providing a unique tool to be used in a range of clinical applications.
Collapse
Affiliation(s)
- Enrique Villa
- IACTEC Medical Technology Group, Instituto de Astrofísica de Canarias, San Cristóbal de La Laguna, 38205, Spain.
| | - Natalia Arteaga-Marrero
- IACTEC Medical Technology Group, Instituto de Astrofísica de Canarias, San Cristóbal de La Laguna, 38205, Spain
| | - Javier González-Fernández
- Department of Biomedical Engineering, Instituto Tecnológico de Canarias, Santa Cruz de Tenerife, 38009, Spain
| | - Juan Ruiz-Alzola
- IACTEC Medical Technology Group, Instituto de Astrofísica de Canarias, San Cristóbal de La Laguna, 38205, Spain
- Department of Signals and Communications, University Research Institute for Biomedical and Health Research, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, 35016, Spain
| |
Collapse
|
43
|
Malakhova I, Privar Y, Parotkina Y, Mironenko A, Eliseikina M, Balatskiy D, Golikov A, Bratskaya S. Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption. Molecules 2020; 25:molecules25204801. [PMID: 33086660 PMCID: PMC7587524 DOI: 10.3390/molecules25204801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 12/25/2022] Open
Abstract
Here we report the method of fabrication of supermacroporous monolith sorbents (cryogels) via covalent cross-linking of polyallylamine (PAA) with diglycidyl ether of 1,4-butandiol. Using comparative analysis of the permeability and sorption performance of the obtained PAA cryogels and earlier developed polyethyleneimine (PEI) cryogels, we have demonstrated the advantages and disadvantages of these polymers as sorbents of heavy metal ions (Cu(II), Zn(II), Cd(II), and Ni(II)) in fixed-bed applications and as supermacroporous matrices for the fabrication of composite cryogels containing copper ferrocyanide (CuFCN) for cesium ion sorption. Applying the rate constant distribution (RCD) model to the kinetic curves of Cu(II) ion sorption on PAA and PEI cryogels, we have elucidated the difference in sorption/desorption rates and affinity constants of these materials and showed that physical sorption contributed to the Cu(II) uptake by PAA, but not to that by PEI cryogels. It was shown that PAA cryogels had significantly higher selectivity for Cu(II) sorption in the presence of Zn(II) and Cd(II) ions in comparison with that of PEI cryogels, while irreversible sorption of Co(II) ions by PEI can be used for the separation of Ni(II) and Co(II) ions. Using IR and Mössbauer spectroscopy, we have demonstrated that strong complexation of Cu(II) ions with PEI significantly affects the in situ formation of Cu(II) ferrocyanide nanosorbents leading to their inefficiency for Cs+ ions selective uptake, whereas PAA cryogel was applicable for the fabrication of efficient monolith composites via the in situ formation of CuFCN or loading of ex situ formed CuFCN colloids.
Collapse
Affiliation(s)
- Irina Malakhova
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Yuliya Privar
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Yuliya Parotkina
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Aleksandr Mironenko
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Marina Eliseikina
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskogo street, 690041 Vladivostok, Russia;
| | - Denis Balatskiy
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Alexey Golikov
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
| | - Svetlana Bratskaya
- Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia; (I.M.); (Y.P.); (Y.P.); (A.M.); (D.B.); (A.G.)
- Correspondence:
| |
Collapse
|
44
|
Kurochkin II, Kurochkin IN, Kolosova OY, Lozinsky VI. Cryostructuring of Polymeric Systems †: Application of Deep Neural Networks for the Classification of Structural Features Peculiar to Macroporous Poly(vinyl alcohol) Cryogels Prepared without and with the Additives of Chaotropes or Kosmotropes. Molecules 2020; 25:molecules25194480. [PMID: 33003473 PMCID: PMC7582390 DOI: 10.3390/molecules25194480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/24/2020] [Accepted: 09/26/2020] [Indexed: 12/28/2022] Open
Abstract
Macroporous poly(vinyl alcohol) cryogels (PVACGs) are physical gels formed via cryogenic processing of polymer solutions. The properties of PVACGs depend on many factors: the characteristics and concentration of PVA, the absence or presence of foreign solutes, and the freezing-thawing conditions. These factors also affect the macroporous morphology of PVACGs, their total porosity, pore size and size distribution, etc. In this respect, there is the problem with developing a scientifically-grounded classification of the morphological features inherent in various PVACGs. In this study PVA cryogels have been prepared at different temperatures when the initial polymer solutions contained chaotropic or kosmotropic additives. After the completion of gelation, the rigidity and heat endurance of the resultant PVACGs were evaluated, and their macroporous structure was investigated using optical microscopy. The images obtained were treated mathematically, and deep neural networks were used for the classification of these images. Training and test sets were used for their classification. The results of this classification for the specific deep neural network architecture are presented, and the morphometric parameters of the macroporous structure are discussed. It was found that deep neural networks allow us to reliably classify the type of additive or its absence when using a combined dataset.
Collapse
Affiliation(s)
- Ilya I. Kurochkin
- A.A. Karkevich Institute for Information Transmission Problems of Russian Academy of Sciences, Moscow 127051, Russia
- Correspondence: (I.I.K.); (V.I.L.); Tel.: +7(903)-5001-338 (I.I.K.); +7(499)-1356-492 (V.I.L.)
| | - Ilya N. Kurochkin
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow 119334, Russia;
- Department of Chemical Enzymology, Chemical Faculty, M.V. Lomonosov Moscow State University, Moscow 119991, Russia
| | - Olga Yu. Kolosova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia;
| | - Vladimir I. Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia;
- Correspondence: (I.I.K.); (V.I.L.); Tel.: +7(903)-5001-338 (I.I.K.); +7(499)-1356-492 (V.I.L.)
| |
Collapse
|
45
|
Li M, Zhang Z, Liang Y, He J, Guo B. Multifunctional Tissue-Adhesive Cryogel Wound Dressing for Rapid Nonpressing Surface Hemorrhage and Wound Repair. ACS Appl Mater Interfaces 2020; 12:35856-35872. [PMID: 32805786 DOI: 10.1021/acsami.0c08285] [Citation(s) in RCA: 185] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cryogels with tissue adhesion have great potential as wound dressings for rapid hemostasis for uncontrollable nonpressing surface hemorrhage and wound healing, but their use has not been reported previously. Herein, we designed a series of antibacterial and antioxidant tissue-adhesive cryogels based on quaternized chitosan (QCS) and polydopamine (PDA). These cryogels had good blood cell and platelet adhesion, enrichment, and activation properties for rapid nonpressing surface hemostasis and wound healing. The cryogels exhibited outstanding mechanical strength and easy removability, antioxidant activity, and NIR photothermal-enhanced antibacterial performance. The cryogels showed much better hemostasis than gauze and gelatin sponge in a standardized strip rat liver injury model, a standardized circular rabbit liver section model, and a pig skin laceration model. Furthermore, the excellent hemostatic performance of the QCS/PDA2.0 cryogel (containing 20 mg/mL QCS and 2.0 mg/mL PDA) for coagulopathic hemorrhages was confirmed in a standardized coagulation disorder rabbit circular liver section model. In addition, the QCS/PDA2.0 cryogel promoted rapid hemostasis in a deep noncompressible wound and a much better wound healing effect than a chitosan sponge and Tegaderm film in a full-thickness skin defect model. Overall, these multifunctional tissue-adhesive cryogels with excellent hemostatic performance and enhanced wound healing properties are suitable candidates for tissue-adhesive hemostat and wound healing dressings.
Collapse
Affiliation(s)
- Meng Li
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhiyi Zhang
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yongping Liang
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiahui He
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Baolin Guo
- Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
46
|
Humelnicu D, Dragan ES, Ignat M, Dinu MV. A Comparative Study on Cu 2+, Zn 2+, Ni 2+, Fe 3+, and Cr 3+ Metal Ions Removal from Industrial Wastewaters by Chitosan-Based Composite Cryogels. Molecules 2020; 25:E2664. [PMID: 32521721 PMCID: PMC7321311 DOI: 10.3390/molecules25112664] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
Materials coming from renewable resources have drawn recently an increased attention in various applications as an eco-friendly alternative in the synthesis of novel functional materials. Polysaccharides, with their prominent representative - chitosan (CS), are well-known for their sorption properties, being able to remove metal ions from dilute solutions either by electrostatic interactions or chelation. In this context, we proposed here a comparative study on Cu2+, Zn2+, Ni2+, Fe3+, and Cr3+ metal ions removal from industrial wastewaters by CS-based composite cryogels using batch technique. The composite cryogels consisting of CS embedding a natural zeolite, namely clinoptilolite, were synthesized by cryogelation, and their sorption performance were compared to those of CS cryogels and of acid-activated zeolite. A deeper analysis of thermodynamics and kinetics sorption data was performed to get insights into the sorption mechanism of all metal ions onto sorbents. Based on the optimized sorption conditions, the removal of the above-mentioned ions from aqueous solutions by the composite sorbent using dynamic technique was also evaluated.
Collapse
Affiliation(s)
- Doina Humelnicu
- Faculty of Chemistry, “Alexandru Ioan Cuza” University of Iasi, 700506 Iasi, Romania; (D.H.); (M.I.)
| | - Ecaterina Stela Dragan
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;
| | - Maria Ignat
- Faculty of Chemistry, “Alexandru Ioan Cuza” University of Iasi, 700506 Iasi, Romania; (D.H.); (M.I.)
- Laboratory of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Maria Valentina Dinu
- Department of Functional Polymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;
| |
Collapse
|
47
|
Boccia AC, Scavia G, Schizzi I, Conzatti L. Biobased Cryogels from Enzymatically Oxidized Starch: Functionalized Materials as Carriers of Active Molecules. Molecules 2020; 25:molecules25112557. [PMID: 32486387 PMCID: PMC7321214 DOI: 10.3390/molecules25112557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 11/16/2022] Open
Abstract
Starch recovered from an agrifood waste, pea pods, was enzymatically modified and used to prepare cryogels applied as drug carriers. The enzymatic modification of starch was performed using the laccase/(2,2,6,6-tetramethylpiperidin-1-yl)oxyl TEMPO system, at a variable molar ratio. The characterization of the ensuing starches by solution NMR spectroscopy showed partial conversion of the primary hydroxyl groups versus aldehyde and carboxyl groups and successive creation of hemiacetal and ester bonds. Enzymatically modified starch after simple freezing and lyophilization process provided stable and compact cryogels with a morphology characterized by irregular pores, as determined by atomic force (AFM) and scanning electron microscopy (SEM). The application of cryogels as carriers of active molecules was successfully evaluated by following two different approaches of loading with drugs: a) as loaded sponge, by adsorption of drug from the liquid phase; and b) as dry-loaded cryogel, from a dehydration step added to loaded cryogel from route (a). The efficiency of the two routes was studied and compared by determining the drug release profile by proton NMR studies over time. Preliminary results demonstrated that cryogels from modified starch are good candidates to act as drug delivery systems due to their stability and prolonged residence times of loaded molecules, opening promising applications in biomedical and food packaging scenarios.
Collapse
Affiliation(s)
- Antonella Caterina Boccia
- Institute for Chemical Sciences and Technologies-SCITEC “G. Natta”, CNR, Via Corti, 12, 20133 Milano, Italy;
- Correspondence: ; Tel.: +39-02-236-99-212
| | - Guido Scavia
- Institute for Chemical Sciences and Technologies-SCITEC “G. Natta”, CNR, Via Corti, 12, 20133 Milano, Italy;
| | - Ilaria Schizzi
- Institute for Chemical Sciences and Technologies-SCITEC “G. Natta”, CNR, Via De Marini, 6, 16149 Genova, Italy; (I.S.); (L.C.)
| | - Lucia Conzatti
- Institute for Chemical Sciences and Technologies-SCITEC “G. Natta”, CNR, Via De Marini, 6, 16149 Genova, Italy; (I.S.); (L.C.)
| |
Collapse
|
48
|
Michel B, Bras J, Dufresne A, Heggset EB, Syverud K. Production and Mechanical Characterisation of TEMPO-Oxidised Cellulose Nanofibrils/β-Cyclodextrin Films and Cryogels. Molecules 2020; 25:E2381. [PMID: 32443918 PMCID: PMC7288142 DOI: 10.3390/molecules25102381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Wood-based TEMPO-oxidised cellulose nanofibrils (toCNF) are promising materials for biomedical applications. Cyclodextrins have ability to form inclusion complexes with hydrophobic molecules and are considered as a method to bring new functionalities to these materials. Water sorption and mechanical properties are also key properties for biomedical applications such as drug delivery and tissue engineering. In this work, we report the modification with β-cyclodextrin (βCD) of toCNF samples with different carboxyl contents viz. 756 ± 4 µmol/g and 1048 ± 32 µmol/g. The modification was carried out at neutral and acidic pH (2.5) to study the effect of dissociation of the carboxylic acid group. Films processed by casting/evaporation at 40 °C and cryogels processed by freeze-drying were prepared from βCD modified toCNF suspensions and compared with reference samples of unmodified toCNF. The impact of modification on water sorption and mechanical properties was assessed. It was shown that the water sorption behaviour for films is driven by adsorption, with a clear impact of the chemical makeup of the fibres (charge content, pH, and adsorption of cyclodextrin). Modified toCNF cryogels (acidic pH and addition of cyclodextrins) displayed lower mechanical properties linked to the modification of the cell wall porosity structure. Esterification between βCD and toCNF under acidic conditions was performed by freeze-drying, and such cryogels exhibited a lower decrease in mechanical properties in the swollen state. These results are promising for the development of scaffold and films with controlled mechanical properties and added value due to the ability of cyclodextrin to form an inclusion complex with active principle ingredient (API) or growth factor (GF) for biomedical applications.
Collapse
Affiliation(s)
- Bastien Michel
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Julien Bras
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | - Alain Dufresne
- Univeristy Grenoble Alpes, CNRS, Grenoble INP*, LGP2, 38000 Grenoble, France; (B.M.); (J.B.); (A.D.)
| | | | - Kristin Syverud
- RISE PFI, NO-7491 Trondheim, Norway;
- Departments of Chemical Engineering, NTNU, 7491 Trondheim, Norway
| |
Collapse
|
49
|
Otero-González L, Mikhalovsky SV, Václavíková M, Trenikhin MV, Cundy AB, Savina IN. Novel nanostructured iron oxide cryogels for arsenic (As(III)) removal. J Hazard Mater 2020; 381:120996. [PMID: 31445473 DOI: 10.1016/j.jhazmat.2019.120996] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/09/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
Novel macroporous iron oxide nanocomposite cryogels were synthesized and assessed as arsenite (As(III)) adsorbents. The two-step synthesis method, by which a porous nanonetwork of iron oxide is firstly formed, allowed a homogeneous dispersion of the iron oxide in the cryogel reaction mixture, regardless of the nature of the co-polymer forming the cryogel structure. The cryogels showed excellent mechanical properties, especially the acrylamide-based cryogel. This gel showed the highest As(III) adsorption capacity, with the maximum value estimated at 118 mg/g using the Langmuir model. The immobilization of the nanostructured iron oxide gel into the cryogel matrix resulted in slower adsorption kinetics, however the cryogels offer the advantage of a stable three-dimensional structure that impedes the release of the iron oxide nanoparticles into the treated effluent. A preliminary toxicity evaluation of the cryogels did not indicate any apparent inhibition of human hepatic cells activity, which together with their mechanical stability and high adsorption capacity for As(III) make them excellent materials for the development of nanoparticle based adsorption devices for drinking water treatment.
Collapse
Affiliation(s)
- Lila Otero-González
- School of Environment & Technology, University of Brighton, Brighton BN2 4GJ, UK
| | - Sergey V Mikhalovsky
- ANAMAD Ltd, Sussex Innovation Centre Science Park Square, Falmer, Brighton BN1 9SB, UK; Chuiko Institute of Surface Chemistry, 17, General Naumov street, Kyiv, 03164, Ukraine
| | | | - Mikhail V Trenikhin
- Center of New Chemical Technologies of the Federal Research Center Boreskov, Institute of Catalysis of Siberian Branch of the Russian Academy of Sciences, Omsk 644040, Russia
| | - Andrew B Cundy
- School of Environment & Technology, University of Brighton, Brighton BN2 4GJ, UK
| | - Irina N Savina
- School of Pharmacy & Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
| |
Collapse
|
50
|
Ferreira FV, Souza LP, Martins TMM, Lopes JH, Mattos BD, Mariano M, Pinheiro IF, Valverde TM, Livi S, Camilli JA, Goes AM, Gouveia RF, Lona LMF, Rojas OJ. Nanocellulose/bioactive glass cryogels as scaffolds for bone regeneration. Nanoscale 2019; 11:19842-19849. [PMID: 31441919 DOI: 10.1039/c9nr05383b] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A major challenge exists in the preparation of scaffolds for bone regeneration, namely, achieving simultaneously bioactivity, biocompatibility, mechanical performance and simple manufacturing. Here, cellulose nanofibrils (CNF) are introduced for the preparation of scaffolds taking advantage of their biocompatibility and ability to form strong 3D porous networks from aqueous suspensions. CNF are made bioactive for bone formation through a simple and scalable strategy that achieves highly interconnected 3D networks. The resultant materials optimally combine morphological and mechanical features and facilitate hydroxyapatite formation while releasing essential ions for in vivo bone repair. The porosity and roughness of the scaffolds favor several cell functions while the ions act in the expression of genes associated with cell differentiation. Ion release is found critical to enhance the production of the bone morphogenetic protein 2 (BMP-2) from cells within the fractured area, thus accelerating the in vivo bone repair. Systemic biocompatibility indicates no negative effects on vital organs such as the liver and kidneys. The results pave the way towards a facile preparation of advanced, high performance CNF-based scaffolds for bone tissue engineering.
Collapse
Affiliation(s)
- Filipe V Ferreira
- School of Chemical Engineering, University of Campinas (UNICAMP), 13083-970, Campinas-SP, Brazil. and Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas-SP, Brazil and Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, P.O. Box 16300, 00076, Aalto University, Finland. and Université de Lyon, Ingénierie des Matériaux Polymères CNRS, UMR 5223, INSA Lyon, F-69621 Villeurbanne, France
| | - Lucas P Souza
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-862, Campinas-SP, Brazil
| | - Thais M M Martins
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte-MG, Brazil
| | - João H Lopes
- Department of Chemistry, Division of Fundamental Sciences (IEF), Technological Institute of Aeronautics (ITA), 12228-900, Sao Jose dos Campos-SP, Brazil
| | - Bruno D Mattos
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, P.O. Box 16300, 00076, Aalto University, Finland.
| | - Marcos Mariano
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas-SP, Brazil
| | - Ivanei F Pinheiro
- School of Chemical Engineering, University of Campinas (UNICAMP), 13083-970, Campinas-SP, Brazil. and Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas-SP, Brazil
| | - Thalita M Valverde
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte-MG, Brazil
| | - Sébastien Livi
- Université de Lyon, Ingénierie des Matériaux Polymères CNRS, UMR 5223, INSA Lyon, F-69621 Villeurbanne, France
| | - José A Camilli
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-862, Campinas-SP, Brazil
| | - Alfredo M Goes
- Department of Pathology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), 31270-901, Belo Horizonte-MG, Brazil
| | - Rubia F Gouveia
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas-SP, Brazil
| | - Liliane M F Lona
- School of Chemical Engineering, University of Campinas (UNICAMP), 13083-970, Campinas-SP, Brazil.
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, P.O. Box 16300, 00076, Aalto University, Finland.
| |
Collapse
|