1
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Liang X, Guo S, Kuang X, Wan X, Liu L, Zhang F, Jiang G, Cong H, He H, Tan SC. Recent advancements and perspectives on processable natural biopolymers: Cellulose, chitosan, eggshell membrane, and silk fibroin. Sci Bull (Beijing) 2024:S2095-9273(24)00603-0. [PMID: 39244421 DOI: 10.1016/j.scib.2024.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/12/2024] [Accepted: 08/20/2024] [Indexed: 09/09/2024]
Abstract
With the rapid development of the global economy and the continuous consumption of fossil resources, sustainable and biodegradable natural biomass has garnered extensive attention as a promising substitute for synthetic polymers. Due to their hierarchical and nanoscale structures, natural biopolymers exhibit remarkable mechanical properties, along with excellent innate biocompatibility and biodegradability, demonstrating significant potential in various application scenarios. Among these biopolymers, proteins and polysaccharides are the most commonly studied due to their low cost, abundance, and ease of use. However, the direct processing/conversion of proteins and polysaccharides into their final products has been a long-standing challenge due to their natural morphology and compositions. In this review, we emphasize the importance of processing natural biopolymers into high-value-added products through sustainable and cost-effective methods. We begin with the extraction of four types of natural biopolymers: cellulose, chitosan, eggshell membrane, and silk fibroin. The processing and post-functionalization strategies for these natural biopolymers are then highlighted. Alongside their unique structures, the versatile potential applications of these processable natural biopolymers in biomedical engineering, biosensors, environmental engineering, and energy applications are illustrated. Finally, we provide a summary and future outlook on processable natural biopolymers, underscoring the significance of converting natural biopolymers into valuable biomaterial platforms.
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Affiliation(s)
- Xinhua Liang
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Shuai Guo
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore
| | - Xiaoju Kuang
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Xiaoqian Wan
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Lu Liu
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Fei Zhang
- Department of Sport Medicine, The Ninth People's Hospital affiliated to Soochow University, Wuxi 215200, China
| | - Gaoming Jiang
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Honglian Cong
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China
| | - Haijun He
- Engineering Research Center for Knitting Technology (Ministry of Education), Jiangnan University, Wuxi 214122, China.
| | - Swee Ching Tan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore.
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2
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Deb D, Khatun B, M BD, Khan MR, Sen Sarma N, Sankaranarayanan K. Utilizing Silk Sericin as a Biomaterial for Drug Encapsulation in a Hydrogel Matrix with Polycaprolactone: Formulation and Evaluation of Antibacterial Activity. ACS OMEGA 2024; 9:32706-32716. [PMID: 39100358 PMCID: PMC11292657 DOI: 10.1021/acsomega.4c02453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 08/06/2024]
Abstract
Hydrogels have emerged as a potential tool for enhancing bioavailability and regulating the controlled release of therapeutic agents. Owing to its excellent biocompatibility, silk sericin-based hydrogels have garnered interest in biomedical applications. This study focuses on synthesizing a soft hydrogel by blending silk sericin (SS) and polycaprolactone (PCL) at room temperature. The physicochemical characteristics of the hydrogels have been estimated by different analytical techniques such as UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The rheological studies demonstrate the non-Newtonian behavior of the hydrogels. Further, the porosity analysis indicates a commendable absorption capacity of the hydrogels. The swelling degree of the hydrogels has been checked in both distilled water and buffer solutions of different pHs (2-10). Moreover, the drug release profile of the hydrogels, using diclofenac sodium (DS) as a model drug, has revealed a substantial release of approximately 67% within the first 130 min with a drug encapsulation efficiency of 60.32%. Moreover, both the empty and the drug-loaded hydrogels have shown antibacterial properties against Gram-positive and Gram-negative bacteria, with the drug-loaded hydrogels displaying enhanced effectiveness. Additionally, the prepared hydrogels are biodegradable, demonstrating their future prospects in biomedical applications.
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Affiliation(s)
- Dona Deb
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bably Khatun
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
| | - Bidyarani Devi M
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
| | - Mojibur R. Khan
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
| | - Neelotpal Sen Sarma
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
| | - Kamatchi Sankaranarayanan
- Institute
of Advanced Study in Science and Technology (An Autonomous Institute
Under DST, Govt. of India), Vigyan Path, Paschim Boragaon,
Garchuk, Guwahati 781035, Assam, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Mahaling B, Roy C, Ghosh S. Silk-gelatin hybrid hydrogel: a potential carrier for RNA therapeutics. J Mater Chem B 2024; 12:6203-6220. [PMID: 38833304 DOI: 10.1039/d4tb00491d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
RNA-based therapeutics have exhibited remarkable potential in targeting genetic factors for disease intervention, exemplified by recent mRNA vaccines for COVID-19. Nevertheless, the intrinsic instability of RNA and challenges related to its translational efficiency remain significant obstacles to the development of RNA as therapeutics. This study introduces an innovative RNA delivery approach using a silk fibroin (SF) and positively charged gelatin (Gel) hydrogel matrix to enhance RNA stability for controlled release. As a proof of concept, whole-cell RNA was incorporated into the hydrogel to enhance interactions with RNA molecules. Additionally, molecular modeling studies were conducted to explore the interactions between SF, collagen, chitosan (Chi), and the various RNA species including ribosomal RNAs (28S, 18S, 8.5S, and 5S rRNAs), transfer RNAs (tRNA-ALA, tRNA-GLN, and tRNA-Leu), as well as messenger RNAs (mRNA-GAPDH, mRNA-β actin, and mRNA-Nanog), shedding light on the RNA-polymer interaction and RNA stability; SF exhibits a more robust interaction with RNA compared to collagen/gel and chitosan. We confirmed the molecular interactions of SF and RNA by FTIR and Raman spectroscopy, which were further supported by AFM and contact angle measurement. This research introduces a novel RNA delivery platform and insights into biopolymer-RNA interactions, paving the way for tailored RNA delivery systems in therapeutics and biomedical applications.
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Affiliation(s)
- Binapani Mahaling
- Regenerative Engineering Laboratory, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - Chandrashish Roy
- Regenerative Engineering Laboratory, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - Sourabh Ghosh
- Regenerative Engineering Laboratory, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
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4
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Nashchekina Y, Militsina A, Elokhovskiy V, Ivan’kova E, Nashchekin A, Kamalov A, Yudin V. Precisely Printable Silk Fibroin/Carboxymethyl Cellulose/Alginate Bioink for 3D Printing. Polymers (Basel) 2024; 16:1027. [PMID: 38674947 PMCID: PMC11054624 DOI: 10.3390/polym16081027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Three-dimensional (3D) bioprinting opens up many possibilities for tissue engineering, thanks to its ability to create a three-dimensional environment for cells like an extracellular matrix. However, the use of natural polymers such as silk fibroin in 3D bioprinting faces obstacles such as having a limited printability due to the low viscosity of such solutions. This study addresses these gaps by developing highly viscous, stable, and biocompatible silk fibroin-based inks. The addition of 2% carboxymethyl cellulose sodium and 1% sodium alginate to an aqueous solution containing 2.5 to 5% silk fibroin significantly improves the printability, stability, and mechanical properties of the printed scaffolds. It has been demonstrated that the more silk fibroin there is in bioinks, the higher their printability. To stabilize silk fibroin scaffolds in an aqueous environment, the printed structures must be treated with methanol or ethanol, ensuring the transition from the silk fibroin's amorphous phase to beta sheets. The developed bioinks that are based on silk fibroin, alginate, and carboxymethyl cellulose demonstrate an ease of printing and a high printing quality, and have a sufficiently good biocompatibility with respect to mesenchymal stromal cells. The printed scaffolds have satisfactory mechanical characteristics. The resulting 3D-printing bioink composition can be used to create tissue-like structures.
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Affiliation(s)
- Yuliya Nashchekina
- Institute of Cytology of the Russian Academy of Sciences, Center of Cell Technologies, St. Petersburg 194064, Russia
| | - Anastasia Militsina
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia;
| | - Vladimir Elokhovskiy
- Institute of Macromolecular Compounds of Russian Academy of Sciences, St. Petersburg 199004, Russia; (V.E.); (E.I.); (A.K.)
| | - Elena Ivan’kova
- Institute of Macromolecular Compounds of Russian Academy of Sciences, St. Petersburg 199004, Russia; (V.E.); (E.I.); (A.K.)
- S.M. Kirov Military Medical Academy, Scientific Research Center, St. Petersburg 194044, Russia
| | - Alexey Nashchekin
- Ioffe Institute, Laboratory «Characterization of Materials and Structures of Solid State Electronics», St. Petersburg 194021, Russia;
| | - Almaz Kamalov
- Institute of Macromolecular Compounds of Russian Academy of Sciences, St. Petersburg 199004, Russia; (V.E.); (E.I.); (A.K.)
| | - Vladimir Yudin
- Institute of Macromolecular Compounds of Russian Academy of Sciences, St. Petersburg 199004, Russia; (V.E.); (E.I.); (A.K.)
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5
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Moon SH, Park TY, Cha HJ, Yang YJ. Photo-/thermo-responsive bioink for improved printability in extrusion-based bioprinting. Mater Today Bio 2024; 25:100973. [PMID: 38322663 PMCID: PMC10844750 DOI: 10.1016/j.mtbio.2024.100973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/08/2024] Open
Abstract
Extrusion-based bioprinting has demonstrated significant potential for manufacturing constructs, particularly for 3D cell culture. However, there is a greatly limited number of bioink candidates exploited with extrusion-based bioprinting, as they meet the opposing requirements for printability with indispensable rheological features and for biochemical functionality with desirable microenvironment. In this study, a blend of silk fibroin (SF) and iota-carrageenan (CG) was chosen as a cell-friendly printable material. The SF/CG ink exhibited suitable viscosity and shear-thinning properties, coupled with the rapid sol-gel transition of CG. By employing photo-crosslinking of SF, the printability with Pr value close to 1 and structural integrity of the 3D constructs were significantly improved within a matter of seconds. The printed constructs demonstrated a Young's modulus of approximately 250 kPa, making them suitable for keratinocyte and myoblast cell culture. Furthermore, the high cell adhesiveness and viability (maximum >98%) of the loaded cells underscored the considerable potential of this 3D culture scaffold applied for skin and muscle tissues, which can be easily manipulated using an extrusion-based bioprinter.
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Affiliation(s)
- Seo Hyung Moon
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | - Tae Yoon Park
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
- Medical Science and Engineering, School of Convergence Science and Technology, Pohang University of Science, Pohang, 37673, Republic of Korea
| | - Yun Jung Yang
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
- Inha University Hospital, Incheon, 22332, Republic of Korea
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Metem V, Thonglam J, Juncheed K, Khangkhamano M, Kwanyuang A, Meesane J. Tissue-mimicking composite barrier membranes to prevent abdominal adhesion formation after surgery. J Mech Behav Biomed Mater 2024; 152:106417. [PMID: 38281440 DOI: 10.1016/j.jmbbm.2024.106417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
Postoperative abdominal adhesions often occur after abdominal surgery; barrier membranes which mimic peritoneal tissue can be constructed to prevent abdominal adhesions. To this end, silk fibroin (SF) sheets were coated with polyvinyl alcohol (PVA) and agarose (AGA) at PVA:AGA ratios of 100:0, 70:30, 50:50, 30:70, and 0:100 to create a composite anti-adhesive barrier and allow us to identify a suitable coating ratio. The membranes were characterized in terms of their molecular organization, structure, and morphology using Fourier transform Infrared spectrometer (FT-IR), differential scanning calorimeter (DSC), and scanning electron microscope (SEM), respectively. The physical and mechanical properties of the membranes and their biological performance (i.e., fibroblast proliferation and invasion) were tested in vitro. Each membrane showed both smooth and rough surface characteristics. Membranes coated with PVA:AGA at ratios of 100:0, 70:30, 50:50, and 30:70 exhibited more -OH and amide III moieties than those coated with 0:100 PVA:AGA, which consequently affected structural organization, degradation, and fibroblast viability. The 0:100 PVA:AGA-coated degraded the fastest. Barrier membranes coated with 100:0 and 70:30 PVA: AGA demonstrated reduced fibroblast proliferation and attachment. The membrane coated with 70:30 PVA:AGA exhibited a stable appearance, and did not curl under wet conditions. Therefore, SF sheets coated with 70:30 PVA:AGA show promise as anti-adhesive barrier membranes for further development.
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Affiliation(s)
- Varistha Metem
- Institute of Biomedical Engineering, Department of Biomedical Science and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Jutakan Thonglam
- Institute of Biomedical Engineering, Department of Biomedical Science and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Kantida Juncheed
- Institute of Biomedical Engineering, Department of Biomedical Science and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Matthana Khangkhamano
- Department of Mine and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Atichart Kwanyuang
- Institute of Biomedical Engineering, Department of Biomedical Science and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand
| | - Jirut Meesane
- Institute of Biomedical Engineering, Department of Biomedical Science and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand.
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7
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Wang T, Ma X, Gong B, Zhu C, Xue P, Guo L, Tian X, Shen X, Min Y, Xu Q, Cao H. Bio-inspired Ti 3C 2T x MXene composite coating for enhancing corrosion resistance of aluminum alloy in acidic environments. J Colloid Interface Sci 2024; 658:865-878. [PMID: 38157611 DOI: 10.1016/j.jcis.2023.12.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/27/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Aluminum alloy (Al alloy) suffers from severe corrosion in acidic solution. Two-dimensional (2D) MXene-based composite coatings show great prospects for corrosion protection on metals used in special conditions. The composite coatings still face challenges in complex functionalization and orientation control. In harsh conditions, the long-term ability and roles of MXene in corrosion protection are still not clear. Here, a bio-inspired myristic-calcium chloride-Ti3C2Tx MXene (MA + CaCl2 + MXene) composite coating is successfully prepared on aluminum alloy (Al alloy) by electrodeposition process. Electrochemical tests, surface morphology, and chemical composition are analyzed to investigate the corrosion resistance and protection mechanism of the MXene coating in acidic solution (0.5 M H2SO4 + 2 ppm HF). As a result, the incorporation of MXene can significantly reduce corrosion current density (7.498 × 10-8 A/cm2) by ∼ 5 orders of magnitude and impedance modulus at 0.01 Hz (|Z|0.01 Hz) value of the composite coating is 196.8 Ω·cm2, which is over 4 times higher than that of bare Al alloy (40.74 Ω·cm2) after immersion test for 72 h. Furthermore, the in-situ corrosion test confirms the enhanced corrosion resistance of the MA + CaCl2 + MXene composite coating. The MXene can increase coating thickness to 23.6 ± 0.4 μm, reduce porosity to (5.845 ± 1) × 10-5, decrease the diffusion coefficients of H+ to (1.587 ± 0.3) × 10-9 cm2/s, and enhance the adhesion of the coating to the substrate (the delamination time exceeds 5 h), thus providing improved anti-corrosion ability. This strategy opens up new prospects for construction of 2D MXene-based anti-corrosion coatings.
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Affiliation(s)
- Tiange Wang
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Xiaoqing Ma
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Baolong Gong
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Chengrong Zhu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Pengzhan Xue
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Longling Guo
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Xu Tian
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Xixun Shen
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - YuLin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Huaijie Cao
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
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Martin BA, Dalmolin LF, Lemos CN, de Menezes Vaidergorn M, da Silva Emery F, Vargas-Rechia CG, Ramos AP, Lopez RFV. Electrostimulable polymeric films with hyaluronic acid and lipid nanoparticles for simultaneous topical delivery of macromolecules and lipophilic drugs. Drug Deliv Transl Res 2024:10.1007/s13346-024-01526-9. [PMID: 38381316 DOI: 10.1007/s13346-024-01526-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 02/22/2024]
Abstract
This study focused on developing electrically stimulable hyaluronic acid (HA) films incorporating lipid nanoparticles (NPs) designed for the topical administration of lipophilic drugs and macromolecules. Based on beeswax and medium-chain triglycerides, NPs were successfully integrated into silk fibroin/chitosan films containing HA (NP-HA films) at a density of approximately 1011 NP/cm2, ensuring a uniform distribution. This integration resulted in a 40% increase in film roughness, a twofold decrease in Young's modulus, and enhanced film flexibility and bioadhesion work. The NP-HA films, featuring Ag/AgCl electrodes, demonstrated the capability to conduct a constant electrical current of 0.2 mA/cm2 without inducing toxicity in keratinocytes and fibroblasts during a 15-min application. Moreover, the NPs facilitated the homogeneous distribution of lipophilic drugs within the film, effectively transporting them to the skin and uniformly distributing them in the stratum corneum upon film administration. The sustained release of HA from the films, following Higuchi kinetics, did not alter the macroscopic characteristics of the film. Although anodic iontophoresis did not noticeably affect the release of HA, it did enhance its penetration into the skin. This enhancement facilitated the permeation of HA with a molecular weight (MW) of up to 2 × 105 through intercellular and transcellular routes. Confocal Raman spectroscopy provided evidence of an approximate 100% increase in the presence of HA with a MW in the range of 1.5-1.8 × 106 in the viable epidermis of human skin after only 15 min of iontophoresis applied to the films. Combining iontophoresis with NP-HA films exhibits substantial potential for noninvasive treatments focused on skin rejuvenation and wound healing.
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Affiliation(s)
- Bianca Aparecida Martin
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Luciana Facco Dalmolin
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Camila Nunes Lemos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Miguel de Menezes Vaidergorn
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Flavio da Silva Emery
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Carem Gledes Vargas-Rechia
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil
| | - Ana Paula Ramos
- Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14040-901, Brazil
| | - Renata F V Lopez
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Professor Doutor Zeferino Vaz, s/n, Ribeirão Preto, São Paulo, 14040-903, Brazil.
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Amaral VA, de Souza JF, Alves TFR, de Oliveira Junior JM, Severino P, Aranha N, Souto EB, Chaud MV. Psidium guajava L. phenolic compound-reinforced lamellar scaffold for tracheal tissue engineering. Drug Deliv Transl Res 2024; 14:62-79. [PMID: 37566362 PMCID: PMC10746760 DOI: 10.1007/s13346-023-01381-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2023] [Indexed: 08/12/2023]
Abstract
The aim of this work was to develop a dense lamellar scaffold, as a biomimetic material with potential applications in the regeneration of tracheal tissue after surgical tumor resection. The scaffolds were produced by plastic compression technique, exploiting the use of total phenolic compounds (TPC) from Psidium guajava Linn as a potential cross-linking agent in a polymeric mixture based on collagen (COL), silk fibroin (SF), and polyethylene glycol 400 (PEG 400). Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) confirmed the chemical interactions between the polymers and the cross-linking of TPC between COL and SF. Morphological analyses showed scaffolds with porosity, interconnectivity, and a porous surface structure with a gyroid-like geometry. The analysis of the anisotropic degree resulted in anisotropic structures (0.1% TFC and 0.3% TFC) and an isotropic structure (0.5% TFC). In the mechanical properties, it was evidenced greater resistance for the 0.3% TFC formulation. The addition of TPC percentages did not result in a significant difference (p > 0.05) in swelling capacity and disintegration rate. The results confirmed that TPC were able to modulate the morphological, morphometric, and mechanical properties of scaffolds. Thus, this study describes a potential new material to improve the regeneration of major tracheal structures after surgical tumor removal.
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Affiliation(s)
- Venâncio A Amaral
- Laboratory of Biomaterials and Nanotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil
| | - Juliana Ferreira de Souza
- Laboratory of Biomaterials and Nanotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil
| | - Thais F R Alves
- Laboratory of Biomaterials and Nanotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil
| | - José M de Oliveira Junior
- Laboratory of Applied Nuclear Physics, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil
| | - Patrícia Severino
- Institute of Technology and Research, Tiradentes University, Murilo Dantas, Aracaju, Sergipe, 300, Brazil
| | - Norberto Aranha
- Laboratory of Biomaterials and Nanotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil
- College of Engineering of Bioprocess and Biotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, 18023-000, Brazil
| | - Eliana B Souto
- Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Jorge de Viterbo Ferreira, 4050-313, Porto, Portugal.
- MEDTECH, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313, Porto, Portugal.
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313, Porto, Portugal.
| | - Marco V Chaud
- Laboratory of Biomaterials and Nanotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, São Paulo, 18023-000, Brazil.
- College of Engineering of Bioprocess and Biotechnology, University of Sorocaba, UNISO, Raposo Tavares, Sorocaba, 18023-000, Brazil.
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10
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Păun AG, Dumitriu C, Ungureanu C, Popescu S. Silk Fibroin/ZnO Coated TiO 2 Nanotubes for Improved Antimicrobial Effect of Ti Dental Implants. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5855. [PMID: 37687548 PMCID: PMC10488414 DOI: 10.3390/ma16175855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/20/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
The aim of the present research is to develop a novel hybrid coating for a Ti dental implant that combines nature-inspired biomimetic polymers and TiO2 nanostructures with an entrapped ZnO antimicrobial agent. ZnO was used in other studies to cover the surface of Ti or Ti-Zr to reduce the need of clinical antibiotics, prevent the onset of peri-implantitis, and increase the success rate of oral clinical implantation. We developed an original coating that represents a promising approach in clinical dentistry. The titanium surface was first anodized to obtain TiO2 nanotubes (NT). Subsequently, on the NT surface, silk fibroin isolated from Bombyx mori cocoons was deposited as nanofibers using the electrospun technique. For an improved antibacterial effect, ZnO nanoparticles were incorporated in this biopolymer using three different methods. The surface properties of the newly created coatings were assessed to establish how they are influenced by the most important features: morphology, wettability, topography. The evaluation of stability by electrochemical methods in simulated physiological solutions was discussed more in detail, considering that it could bring necessary information related to the behavior of the implant material. All samples had improved roughness and hydrophilicity, as well as corrosion stability (with protection efficiency over 80%). The antibacterial test shows that the functional hybrid coating has good antibacterial activity because it can inhibit the proliferation of Staphylococcus aureus up to 53% and Enterococcus faecalis up to 55%. All Ti samples with the modified surface have proven superior properties compared with unmodified TiNT, which proved that they have the potential to be used as implant material in dentistry.
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Affiliation(s)
| | | | | | - Simona Popescu
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, Gheorghe Polizu 1-7 Street, 011061 Bucharest, Romania; (A.G.P.); (C.D.); (C.U.)
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11
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Huang L, Shi J, Zhou W, Zhang Q. Advances in Preparation and Properties of Regenerated Silk Fibroin. Int J Mol Sci 2023; 24:13153. [PMID: 37685960 PMCID: PMC10487664 DOI: 10.3390/ijms241713153] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Over the years, silk fibroin (SF) has gained significant attention in various fields, such as biomedicine, tissue engineering, food processing, photochemistry, and biosensing, owing to its remarkable biocompatibility, machinability, and chemical modifiability. The process of obtaining regenerated silk fibroin (RSF) involves degumming, dissolving, dialysis, and centrifugation. RSF can be further fabricated into films, sponges, microspheres, gels, nanofibers, and other forms. It is now understood that the dissolution method selected greatly impacts the molecular weight distribution and structure of RSF, consequently influencing its subsequent processing and application. This study comprehensively explores and summarizes different dissolution methods of SF while examining their effects on the structure and performance of RSF. The findings presented herein aim to provide valuable insights and references for researchers and practitioners interested in utilizing RSF in diverse fields.
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Affiliation(s)
| | | | | | - Qing Zhang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
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12
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Liu X, Huang Q, Pan P, Fang M, Zhang Y, Yang S, Li M, Liu Y. Comparative Study of the Preparation of High-Molecular-Weight Fibroin by Degumming Silk with Several Neutral Proteases. Polymers (Basel) 2023; 15:3383. [PMID: 37631440 PMCID: PMC10459046 DOI: 10.3390/polym15163383] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/09/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Removing sericin from the periphery of silk without damage to silk fibroin (SF) to obtain high-molecular-weight SF is a major challenge in the field of SF-based biomaterials. In this study, four neutral proteases, subtilisin, trypsin, bromelain and papain, were used to degum silk, and the degumming efficiency of the proteases and their influence on the molecular weight (MW) of regenerated silk fibroin were studied. The results indicated that all four neutral proteases could remove sericin from silk almost completely, and they caused less damage to SF fibers than Na2CO3 degumming did. The degumming efficiency of trypsin and papain was strong, but they caused relatively high damage to SF, whereas bromelain caused the least damage. The results of sodium dodecyl sulfate-polyacrylamide gel electrophoresis, gel permeation chromatography and shear viscosity showed that the MWs of regenerated SF derived from neutral protease degumming were significantly higher than that of SF derived from Na2CO3 degumming. The MW of regenerated SF derived from bromelain degumming was the highest, while the MWs of regenerated SF derived from papain and trypsin degumming were relatively low. This study provides an efficient and environmentally friendly biological degumming method for obtaining high-molecular-weight silk fibroin.
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Affiliation(s)
| | | | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (X.L.); (Q.H.); (P.P.); (M.F.); (Y.Z.); (S.Y.)
| | - Yu Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (X.L.); (Q.H.); (P.P.); (M.F.); (Y.Z.); (S.Y.)
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13
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Rizzo G, Petrelli V, Sibillano T, De Caro L, Giangregorio MM, Lo Presti M, Omenetto FG, Giannini C, Mastrorilli P, Farinola GM. Raman, WAXS, and Solid-State NMR Characterizations of Regenerated Silk Fibroin Using Lanthanide Ions as Chaotropic Agents. ACS OMEGA 2023; 8:24165-24175. [PMID: 37457447 PMCID: PMC10339335 DOI: 10.1021/acsomega.2c07149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 04/12/2023] [Indexed: 07/18/2023]
Abstract
Bombyx mori silk fibroin (SF) has been reported as a convenient natural material for regenerative medicine, optoelectronics, and many other technological applications. SF owes its unique features to the hierarchical organization of the fibers. Many efforts have been made to set up protocols for dissolution since many applications of SF are based on regenerated solutions and fibers, but chaotropic conditions required to disassemble the packing of the polymer afford solutions with poor crystalline behavior. Our previous research has disclosed a dissolution and regeneration process of highly crystalline fibers involving lanthanide ions as chaotropic agents, demonstrating that each lanthanide has its own unique interaction with SF. Herein, we report elucidation of the structure of Ln-SF fibers by the combined use of Raman spectroscopy, wide-angle X-ray scattering (WAXS), and solid-state NMR techniques. Raman spectra confirmed the coordination of metal ions to SF, WAXS results highlighted the crystalline content of fibers, and solid-state NMR enabled the assessment of different ratios of secondary structures in the protein.
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Affiliation(s)
- Giorgio Rizzo
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, via Orabona 4, 70125 Bari, Italy
| | | | - Teresa Sibillano
- CNR
IC−Institute of Crystallography, via Amendola 122/O, Bari 70126, Italy
| | - Liberato De Caro
- CNR
IC−Institute of Crystallography, via Amendola 122/O, Bari 70126, Italy
| | - Maria Michela Giangregorio
- Institute
of Nanotechnology, CNR NANOTEC, c/o, Dipartimento di Chimica, Università di Bari, via Orabona 4, 70126 Bari, Italy
| | - Marco Lo Presti
- Silklab,
Department of Biomedical Engineering, Tufts
University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
| | - Fiorenzo G. Omenetto
- Silklab,
Department of Biomedical Engineering, Tufts
University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
| | - Cinzia Giannini
- CNR
IC−Institute of Crystallography, via Amendola 122/O, Bari 70126, Italy
| | | | - Gianluca M. Farinola
- Dipartimento
di Chimica, Università degli Studi
di Bari Aldo Moro, via Orabona 4, 70125 Bari, Italy
- Silklab,
Department of Biomedical Engineering, Tufts
University, 200 Boston Avenue, Suite 4875, Medford, Massachusetts 02155, United States
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14
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Bayraktar O, Oder G, Erdem C, Kose MD, Cheaburu-Yilmaz CN. Selective Encapsulation of the Polyphenols on Silk Fibroin Nanoparticles: Optimization Approaches. Int J Mol Sci 2023; 24:ijms24119327. [PMID: 37298277 DOI: 10.3390/ijms24119327] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/06/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
The present study proposes a method for designing small bioactive nanoparticles using silk fibroin as a carrier to deliver hydrophobic polyphenols. Quercetin and trans-resveratrol, widely distributed in vegetables and plants, are used here as model compounds with hydrophobic properties. Silk fibroin nanoparticles were prepared by desolvation method and using various concentrations of ethanol solutions. The optimization of the nanoparticle formation was achieved by applying Central Composite Design (CCD) and the response surface methodology (RSM). The effects of silk fibroin and ethanol solution concentrations together with the pH on the selective encapsulation of phenolic compounds from a mixture were reported. The obtained results showed that nanoparticles with an average particle size of 40 to 105 nm can be prepared. The optimized system for the selective encapsulation of the polyphenols on the silk fibroin substrate was determined to be 60% ethanol solution and 1 mg/mL silk fibroin concentration at neutral pH. The selective encapsulation of the polyphenols was achieved, with the best results being obtained in the case of resveratrol and quercetin and encapsulation of gallic and vanillic acids being rather poor. Thin-layer chromatography confirmed the selective encapsulation and the loaded silk fibroin nanoparticles exhibited antioxidant activity.
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Affiliation(s)
- Oguz Bayraktar
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Gizem Oder
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Cansu Erdem
- Department of Bioengineering, Faculty of Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Merve Deniz Kose
- Department of Chemical Engineering, Faculty of Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Catalina N Cheaburu-Yilmaz
- Laboratory of Physical Chemistry of Polymers, Petru Poni Institute of Macromolecular Chemistry, Romanian Academy, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
- Biochemistry Division, Department of Chemistry, Faculty of Science, Dokuz Eylul University, 35390 Izmir, Turkey
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15
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Zhang Y, Sheng R, Chen J, Wang H, Zhu Y, Cao Z, Zhao X, Wang Z, Liu C, Chen Z, Zhang P, Kuang B, Zheng H, Shen C, Yao Q, Zhang W. Silk Fibroin and Sericin Differentially Potentiate the Paracrine and Regenerative Functions of Stem Cells Through Multiomics Analysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210517. [PMID: 36915982 DOI: 10.1002/adma.202210517] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/08/2023] [Indexed: 05/19/2023]
Abstract
Silk fibroin (SF) and sericin (SS), the two major proteins of silk, are attractive biomaterials with great potential in tissue engineering and regenerative medicine. However, their biochemical interactions with stem cells remain unclear. In this study, multiomics are employed to obtain a global view of the cellular processes and pathways of mesenchymal stem cells (MSCs) triggered by SF and SS to discern cell-biomaterial interactions at an in-depth, high-throughput molecular level. Integrated RNA sequencing and proteomic analysis confirm that SF and SS initiate widespread but distinct cellular responses and potentiate the paracrine functions of MSCs that regulate extracellular matrix deposition, angiogenesis, and immunomodulation through differentially activating the integrin/PI3K/Akt and glycolysis signaling pathways. These paracrine signals of MSCs stimulated by SF and SS effectively improve skin regeneration by regulating the behavior of multiple resident cells (fibroblasts, endothelial cells, and macrophages) in the skin wound microenvironment. Compared to SS, SF exhibits better immunomodulatory effects in vitro and in vivo, indicating its greater potential as a carrier material of MSCs for skin regeneration. This study provides comprehensive and reliable insights into the cellular interactions with SF and SS, enabling the future development of silk-based therapeutics for tissue engineering and stem cell therapy.
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Affiliation(s)
- Yanan Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Renwang Sheng
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Jialin Chen
- School of Medicine, Southeast University, Nanjing, 210009, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210096, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Hongmei Wang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Yue Zhu
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Zhicheng Cao
- School of Medicine, Southeast University, Nanjing, 210009, China
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, China
| | - Xinyi Zhao
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Zhimei Wang
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, and School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Chuanquan Liu
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Zhixuan Chen
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Po Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, China
| | - Baian Kuang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Haotian Zheng
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Chuanlai Shen
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Qingqiang Yao
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210006, China
| | - Wei Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210096, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
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16
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Zhang M, Wang HY, Zhang YQ. Unidirectional Nanopore Dehydration Induces a Highly Stretchable and Mechanically Robust Silk Fibroin Membrane Dominated by Type II β-Turns. ACS Biomater Sci Eng 2023; 9:2741-2754. [PMID: 37027820 DOI: 10.1021/acsbiomaterials.2c00729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Aqueous silk fibroin solution is dehydrated by evaporation into a water-soluble cast film (SFME) with poor mechanical properties but becomes by unidirectional nanopore dehydration (UND) into silk fibroin membrane (SFMU) with water-stable and good mechanical robustness. The thickness and tensile force of the SFMU are almost twice those of the MeOH-annealed SFME. The UND-based SFMU has a tensile strength of 15.82 MPa, an elongation of 665.23%, and a type II β-turn (Silk I) that accounts for 30.75% of the crystal structure. Mouse L-929 cells adhere, grow, and proliferate well on it. The UND temperature can be used to tune the secondary structure, mechanical properties, and biodegradability. UND induced the oriented arrangement of the silk molecules, which led to the formation of the SFMU dominated with Silk I structure. The silk metamaterial by controllable UND technology has great potential in medical biomaterials, biomimetic materials, sustained drug release, and flexible electronic substrates.
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Affiliation(s)
- Meng Zhang
- Silk Biotechnology Laboratory, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, P. R. China
| | - Hai-Yan Wang
- Department of Obstetrics and Gynecology, The People's Hospital of Suzhou New District, Suzhou 215163, P. R. China
| | - Yu-Qing Zhang
- Silk Biotechnology Laboratory, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, P. R. China
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17
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Ramanathan G, Jeyakumar GFS, Sivagnanam UT, Fardim P. Biomimetic cellulose/collagen/silk fibroin as a highly interconnected 3D hybrid matrix for bone tissue engineering. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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18
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Roca CP, Burton OT, Neumann J, Tareen S, Whyte CE, Gergelits V, Veiga RV, Humblet-Baron S, Liston A. A cross entropy test allows quantitative statistical comparison of t-SNE and UMAP representations. CELL REPORTS METHODS 2023; 3:100390. [PMID: 36814837 PMCID: PMC9939422 DOI: 10.1016/j.crmeth.2022.100390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/29/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023]
Abstract
The advent of high-dimensional single-cell data has necessitated the development of dimensionality-reduction tools. t-Distributed stochastic neighbor embedding (t-SNE) and uniform manifold approximation and projection (UMAP) are the two most frequently used approaches, allowing clear visualization of complex single-cell datasets. Despite the need for quantitative comparison, t-SNE and UMAP have largely remained visualization tools due to the lack of robust statistical approaches. Here, we have derived a statistical test for evaluating the difference between dimensionality-reduced datasets using the Kolmogorov-Smirnov test on the distributions of cross entropy of single cells within each dataset. As the approach uses the inter-relationship of single cells for comparison, the resulting statistic is robust and capable of identifying true biological variation. Further, the test provides a valid distance between single-cell datasets, allowing the organization of multiple samples into a dendrogram for quantitative comparison of complex datasets. These results demonstrate the largely untapped potential of dimensionality-reduction tools for biomedical data analysis beyond visualization.
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Affiliation(s)
- Carlos P. Roca
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Oliver T. Burton
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Julika Neumann
- VIB Center for Brain and Disease Research, 3000 Leuven, Belgium
- KU Leuven - University of Leuven, Department of Microbiology and Immunology, 3000 Leuven, Belgium
| | - Samar Tareen
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Carly E. Whyte
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Vaclav Gergelits
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Rafael V. Veiga
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | | | - Adrian Liston
- Immunology Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
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19
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Ekasurya W, Sebastian J, Puspitasari D, Asri PPP, Asri LATW. Synthesis and Degradation Properties of Sericin/PVA Hydrogels. Gels 2023; 9:gels9020076. [PMID: 36826246 PMCID: PMC9956334 DOI: 10.3390/gels9020076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
One method of treating diabetic foot ulcers, mainly superficial and deep ulcers, is using a wound dressing in the form of a hydrogel. Sericin derived from silkworm cocoons is a promising hydrogel material candidate because it has anti-inflammatory properties and stimulates collagen production. Sericin was combined with PVA to increase the stability of the resulting hydrogel. Sericin/PVA hydrogel was prepared using the freeze-thawing method with variations in the solution concentration and volume ratio of PVA and sericin. Sericin was successfully extracted using an autoclave method. The FTIR results confirmed that sericin extracted from the cocoon had a dominant secondary structure in the form of a β-sheet. Hydrogel with a concentration of 4% with a 1:1 ratio of PVA and sericin showed good stability and resulted in a hydrogel with characteristics that combine PVA and sericin. The resulting hydrogel had an average pore size range of 24-191 µm and a porosity range of 70-85%, which meets the requirements for wound dressings. Through degradation testing in PBS solution, it was found that the sericin/PVA hydrogel experienced degradation of 60-75% after 672 h of testing.
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20
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Aytemiz DG, Kambe Y, Hirata M, Nishi H, Kameda T. Effects of RGD-fused silk fibroin in a solution format on fibroblast proliferation and collagen production. Biomed Mater Eng 2023; 34:183-193. [PMID: 35871317 DOI: 10.3233/bme-221430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Collagen production in fibroblasts is important for skin tissue repair. Cell-adhesive Arg-Gly-Asp (RGD) peptides immobilized on scaffolds stimulate fibroblast collagen production, but RGD peptides in solution exhibit opposite effects. Transgenic silkworm technology enables the design of fusion positions for RGD peptides in silk fibroin molecules. The effect of RGD-fused silk fibroin in solution on fibroblast cell activity remains unclear. OBJECTIVE To clarify the effects of RGD peptides fused to silk fibroin heavy (H)-chain or light (L)-chain on fibroblast proliferation and collagen production when RGD-fused silk fibroin proteins were added to the culture medium. METHODS Silk fibers with RGD-fused H-chains (H-RGD) or L-chains (L-RGD) were degummed, dissolved, and dialyzed to prepare H-RGD or L-RGD aqueous solutions, respectively. These solutions were added to the fibroblast medium, and their proliferation and collagen production were quantified. RESULTS Both L- and H-RGD stimulated fibroblast proliferation at a similar level, even in a solution format, but L-RGD promoted fibroblast collagen production significantly, indicating the synergistic effect of the native H-chain and RGD-fused L-chain. CONCLUSION RGD-fused silk fibroin in solution stimulated fibroblast proliferation and collagen production, depending on the fusion position of the peptides.
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Affiliation(s)
- Derya G Aytemiz
- Silk Materials Research Group, Division of Silk-Producing Insect Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Ibaraki, Japan
| | - Yusuke Kambe
- Silk Materials Research Group, Division of Silk-Producing Insect Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Ibaraki, Japan
| | | | | | - Tsunenori Kameda
- Silk Materials Research Group, Division of Silk-Producing Insect Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Ibaraki, Japan
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21
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Chiesa I, De Maria C, Tonin R, Ripanti F, Ceccarini MR, Salvatori C, Mussolin L, Paciaroni A, Petrillo C, Cesprini E, Feo F, Calamai M, Morrone A, Morabito A, Beccari T, Valentini L. Biocompatible and Printable Ionotronic Sensing Materials Based on Silk Fibroin and Soluble Plant-Derived Polyphenols. ACS OMEGA 2022; 7:43729-43737. [PMID: 36506141 PMCID: PMC9730456 DOI: 10.1021/acsomega.2c04729] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/09/2022] [Indexed: 06/17/2023]
Abstract
The emergence of ionotronic materials has been recently exploited for interfacing electronics and biological tissues, improving sensing with the surrounding environment. In this paper, we investigated the synergistic effect of regenerated silk fibroin (RS) with a plant-derived polyphenol (i.e., chestnut tannin) on ionic conductivity and how water molecules play critical roles in regulating ion mobility in these materials. In particular, we observed that adding tannin to RS increases the ionic conductivity, and this phenomenon is accentuated by increasing the hydration. We also demonstrated how silk-based hybrids could be used as building materials for scaffolds where human fibroblast and neural progenitor cells can highly proliferate. Finally, after proving their biocompatibility, RS hybrids demonstrate excellent three-dimensional (3D) printability via extrusion-based 3D printing to fabricate a soft sensor that can detect charged objects by sensing the electric fields that originate from them. These findings pave the way for a viable option for cell culture and novel sensors, with the potential base for tissue engineering and health monitoring.
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Affiliation(s)
- Irene Chiesa
- Department
of Ingegneria dell’Informazione and Research Center E. Piaggio, University of Pisa, Largo Lucio Lazzarino 1, Pisa 56122, Italy
| | - Carmelo De Maria
- Department
of Ingegneria dell’Informazione and Research Center E. Piaggio, University of Pisa, Largo Lucio Lazzarino 1, Pisa 56122, Italy
| | - Rodolfo Tonin
- Molecular
and Cell Biology Laboratory, Paediatric Neurology Unit and Laboratories,
Neuroscience Department, Meyer Children’s
Hospital, Firenze 50121, Italy
| | - Francesca Ripanti
- Department
Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
| | | | - Carlotta Salvatori
- Department
of Ingegneria dell’Informazione and Research Center E. Piaggio, University of Pisa, Largo Lucio Lazzarino 1, Pisa 56122, Italy
| | - Lorenzo Mussolin
- Department
Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
| | - Alessandro Paciaroni
- Department
Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
| | - Caterina Petrillo
- Department
Physics and Geology, University of Perugia, via Alessandro Pascoli, 06123 Perugia, Italy
- AREA
Science Park, Padriciano,
99, 34149 Trieste, Italy
| | - Emanuele Cesprini
- Land Environment
Agriculture & Forestry Department, University
of Padua, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Federica Feo
- Molecular
and Cell Biology Laboratory, Paediatric Neurology Unit and Laboratories,
Neuroscience Department, Meyer Children’s
Hospital, Firenze 50121, Italy
| | - Martino Calamai
- European
Laboratory for Non-linear Spectroscopy (LENS), University of Florence, Sesto
Fiorentino 50019, Italy
- National
Institute of Optics−National Research Council (CNR-INO), Sesto Fiorentino 50019, Italy
| | - Amelia Morrone
- Molecular
and Cell Biology Laboratory, Paediatric Neurology Unit and Laboratories,
Neuroscience Department, Meyer Children’s
Hospital, Firenze 50121, Italy
- Dipartimento
Neuroscienze, Psicologia, Area del Farmaco e della Salute del Bambino
NEUROFARBA, Università degli Studi
di Firenze, Viale Pieraccini 6, Firenze 50121, Italy
| | - Antonino Morabito
- Dipartimento
Neuroscienze, Psicologia, Area del Farmaco e della Salute del Bambino
NEUROFARBA, Università degli Studi
di Firenze, Viale Pieraccini 6, Firenze 50121, Italy
- Department
of Pediatric Surgery, Meyer Children’s
Hospital, Viale Pieraccini 24, Firenze 50139, Italy
| | - Tommaso Beccari
- Department
of Pharmaceutical Sciences, University of
Perugia, 06123 Perugia, Italy
| | - Luca Valentini
- Civil
and Environmental Engineering Department, University of Perugia, Strada di Pentima 4, Terni 05100, Italy
- Italian Consortium
for Science and Technology of Materials (INSTM), Via Giusti 9, Firenze 50121, Italy
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22
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Sakunpongpitiporn P, Naeowong W, Sirivat A. Enhanced transdermal insulin basal release from silk fibroin (SF) hydrogels via iontophoresis. Drug Deliv 2022; 29:2234-2244. [PMID: 35848994 PMCID: PMC9848418 DOI: 10.1080/10717544.2022.2096717] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 01/21/2023] Open
Abstract
Insulin is the peptide hormone used to treat the diabetes patient. The hormone is normally taken by injection. The transdermal drug delivery system (TDDS) is an alternative route. The silk fibroin (SF) hydrogels were fabricated via solution casting as the insulin matrix. The release and release-permeation experiments of the insulin loaded SF hydrogels were carried out using a modified Franz-diffusion cell at 37 °C for 36 h, under the effects of SF concentrations, pH, and electric field. The release-permeation mechanism through the pig skin was from the Case-II transport with the constant release rate. The diffusion coefficient (D) increased with decreasing SF concentration due to a larger mesh size, and with increasing electric field due to the electroreplusive forces between the insulin and the SF hydrogels against the negatively-charged electrode, and the induced SF hydrogel expansion. The rate and amount of insulin release-permeation became relatively lower as it required a longer time to generate aqueous pathways through the pig skin. The present SF hydrogels are demonstrated here deliver insulin with the required constant release rate, and the suitable amount within a prescribed duration.
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Affiliation(s)
- Phimchanok Sakunpongpitiporn
- The Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
| | - Witthawat Naeowong
- Division of Perioperative and Ambulatory Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Anuvat Sirivat
- The Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand
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23
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Phan VHG, Murugesan M, Nguyen PPT, Luu CH, Le NHH, Nguyen HT, Manivasagan P, Jang ES, Li Y, Thambi T. Biomimetic injectable hydrogel based on silk fibroin/hyaluronic acid embedded with methylprednisolone for cartilage regeneration. Colloids Surf B Biointerfaces 2022; 219:112859. [PMID: 36162179 DOI: 10.1016/j.colsurfb.2022.112859] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/06/2022] [Accepted: 09/16/2022] [Indexed: 11/22/2022]
Abstract
Articular cartilage injury is characterized by limited self-repair capacity due to the shortage of blood vessels, lymphatics, and nerves. Hence, this study aims to exploit a classic injectable hydrogel platform that can restore the cartilage defects with minimally invasive surgery, which is similar to the natural extracellular microenvironment, and highly porous network for cell adhesion and proliferation. In this study, an injectable scaffold system comprised of silk fibroin (SF) and hyaluronic acid (HA) was developed to adapt the above requirements. Besides, methylprednisolone (MP) was encapsulated by SF/HA scaffold for alleviating inflammation. The SF/HA hydrogel scaffold was prepared by chemical cross-linking between the lysine residues of SF via Schiff base formation, and pore diameter of the obtained hydrogels was 100.47 ± 32.09 µm. The highly porous nature of hydrogel could further benefit the soft tissue regeneration. Compared with HA-free hydrogels, SF/HA hydrogel showed more controlled release on MP. In ovo experiment of chick embryo chorioallantoic membrane (CAM) demonstrated that SF/HA hydrogels not altered the angiogenesis and formation of blood vessels, thus making it suitable for cartilage regeneration. Furthermore, in vivo gel formation was validated in mice model, suggesting in situ gel formation of SF/HA hydrogels. More importantly, SF/HA hydrogels exhibited the controlled biodegradation. Overall, SF/HA hydrogels provide further insights to the preparation of effective scaffold for tissue regeneration and pave the way to improve the articular cartilage injury treatment.
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Affiliation(s)
- V H Giang Phan
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Mohanapriya Murugesan
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea
| | - P P Thanh Nguyen
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Cuong Hung Luu
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Ngoc-Han Hoai Le
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Huong Thi Nguyen
- Biomaterials and Nanotechnology Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Panchanathan Manivasagan
- Department of Applied Chemistry, Kumoh National Institute of Technology, Daehak-ro 61, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Eue-Soon Jang
- Department of Applied Chemistry, Kumoh National Institute of Technology, Daehak-ro 61, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Yi Li
- College of Materials and Textile Engineering & Nanotechnology Research Institute, Jiaxing University, Jiaxing 314001, Zhejiang Province, PR China.
| | - Thavasyappan Thambi
- Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin si, Gyeonggi do 17104, Republic of Korea.
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24
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Arriaga-Canon C, Contreras-Espinosa L, Rebollar-Vega R, Montiel-Manríquez R, Cedro-Tanda A, García-Gordillo JA, Álvarez-Gómez RM, Jiménez-Trejo F, Castro-Hernández C, Herrera LA. Transcriptomics and RNA-Based Therapeutics as Potential Approaches to Manage SARS-CoV-2 Infection. Int J Mol Sci 2022; 23:11058. [PMID: 36232363 PMCID: PMC9570475 DOI: 10.3390/ijms231911058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022] Open
Abstract
SARS-CoV-2 is a coronavirus family member that appeared in China in December 2019 and caused the disease called COVID-19, which was declared a pandemic in 2020 by the World Health Organization. In recent months, great efforts have been made in the field of basic and clinical research to understand the biology and infection processes of SARS-CoV-2. In particular, transcriptome analysis has contributed to generating new knowledge of the viral sequences and intracellular signaling pathways that regulate the infection and pathogenesis of SARS-CoV-2, generating new information about its biology. Furthermore, transcriptomics approaches including spatial transcriptomics, single-cell transcriptomics and direct RNA sequencing have been used for clinical applications in monitoring, detection, diagnosis, and treatment to generate new clinical predictive models for SARS-CoV-2. Consequently, RNA-based therapeutics and their relationship with SARS-CoV-2 have emerged as promising strategies to battle the SARS-CoV-2 pandemic with the assistance of novel approaches such as CRISPR-CAS, ASOs, and siRNA systems. Lastly, we discuss the importance of precision public health in the management of patients infected with SARS-CoV-2 and establish that the fusion of transcriptomics, RNA-based therapeutics, and precision public health will allow a linkage for developing health systems that facilitate the acquisition of relevant clinical strategies for rapid decision making to assist in the management and treatment of the SARS-CoV-2-infected population to combat this global public health problem.
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Affiliation(s)
- Cristian Arriaga-Canon
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Avenida San Fernando No. 22 ColC. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Laura Contreras-Espinosa
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Avenida San Fernando No. 22 ColC. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Rosa Rebollar-Vega
- Genomics Laboratory, Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México, Vasco de Quiroga 15, Belisario Domínguez Secc 16, Tlalpan, Mexico City 14080, Mexico
| | - Rogelio Montiel-Manríquez
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Avenida San Fernando No. 22 ColC. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Alberto Cedro-Tanda
- Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Arenal Tepepan, Tlalpan. C.P., Mexico City 14610, Mexico
| | - José Antonio García-Gordillo
- Oncología Médica, Instituto Nacional de Cancerología, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Rosa María Álvarez-Gómez
- Clínica de Cáncer Hereditario, Instituto Nacional de Cancerología, Avenida San Fernando No. 22 Col. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Francisco Jiménez-Trejo
- Instituto Nacional de Pediatría, Insurgentes Sur No. 3700-C, Coyoacán. C.P., Mexico City 04530, Mexico
| | - Clementina Castro-Hernández
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Avenida San Fernando No. 22 ColC. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
| | - Luis A. Herrera
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Avenida San Fernando No. 22 ColC. Sección XVI, Tlalpan. C.P., Mexico City 14080, Mexico
- Instituto Nacional de Medicina Genómica, Periférico Sur 4809, Arenal Tepepan, Tlalpan. C.P., Mexico City 14610, Mexico
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25
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Chemical Modification of Silk Fibroin through Serine Amino Acid Residues. MATERIALS 2022; 15:ma15134399. [PMID: 35806524 PMCID: PMC9267670 DOI: 10.3390/ma15134399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 12/12/2022]
Abstract
Silk fibroin (SF) is a natural protein polymer and promising biomaterial. Chemical modifications have attracted growing interest in expanding SF applications. However, the majority of amino acid residues in SF are non-reactive and most of the reactive ones are in the crystalline region. Herein, a modification was conducted to investigate the possibility of direct modification on the surface of natural SF by a reagent with a mild reactivity, the type and quantity of the residues involved in the reactions, and the structural changes upon modification. Infrared spectrum, 1H NMR, titration and amino acid analyses, X-ray diffraction, and hemolysis test were used to analyze the materials. The results showed that sulfonic acid groups were grafted onto SF and the reaction occurred mainly at serine residues through hydroxyl groups. In total, 0.0958 mmol/g of residues participated in the modification with a modification efficiency of 7.6%. Moreover, the crystallinity and the content of β-sheet structure in SF increased upon modification. The modified material had good blood-compatibility. In conclusion, surface modification on native SF through serine residues was practicable and had the advantage of increased β-sheet structure. This will provide an alternative way for the modification of fibroin for the desired application in the biomedical field.
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26
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Sangkert S, Juncheed K, Meesane J. Osteoconductive Silk Fibroin Binders for Bone Repair in Alveolar Cleft Palate: Fabrication, Structure, Properties, and In Vitro Testing. J Funct Biomater 2022; 13:jfb13020080. [PMID: 35735935 PMCID: PMC9224859 DOI: 10.3390/jfb13020080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoconductive silk fibroin (SF) binders were fabricated for the bone repair of an alveolar cleft defect. Binders were prefigureared by mixing different ratios of a mixture of random coils and SF aggregation with SF fibrils: 100:0 (SFB100), 75:25 (SFB75), 50:50 (SFB50), 25:75 (SFB25), and 0:100 (SFB0). The gelation, molecular organization, structures, topography, and morphology of the binders were characterized and observed. Their physical, mechanical, and biological properties were tested. The SF binders showed gelation via self-assembly of SF aggregation and fibrillation. SFB75, SFB50, and SFB25 had molecular formation via the amide groups and showed more structural stability than SFB100. The morphology of SFB0 demonstrated the largest pore size. SFB0 showed a lowest hydrophilicity. SFB100 showed the highest SF release. SFB25 had the highest maximum load. SFB50 exhibited the lowest elongation at break. Binders with SF fibrils showed more cell viability and higher cell proliferation, ALP activity, calcium deposition, and protein synthesis than without SF fibrils. Finally, the results were deduced: SFB25 demonstrated suitable performance that is promising for the bone repair of an alveolar cleft defect.
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27
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Optimization of silk fibroin coating during storage using response surface methodology and its effect on the physicochemical properties of Solanum ferox (S. ferox). JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01448-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Yang M, Yu S, Zhao P, Xie L, Lyu G, Yu J. Fabrication of homogeneously-aligned nano-fillers encapsulated silk fibroin electrospun nanofibers for improved fibroblast attachment, epithelialization, and collagen depositions: in vitro and in vivo wound healing evaluation. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:878-899. [PMID: 34965203 DOI: 10.1080/09205063.2021.2024360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Curcumin (CUR), a natural compound found in turmeric that has multiple biological functions such as antibacterial, anti-oxidant, anti-cancer, and wound healing properties due to its hydrophobicity CUR solubilization is a great challenge. In this study, the electrospinning process is used to fabricate a novel active wound dressing based on CUR loaded silk fibroin (SF)/hydroxyapatite (HAp) (SF/HAp-CUR) nanofibers in diabetic rats. The incorporation of CUR into the SF/HAp-CUR nanofibers had an obvious effect on the morphology and dimension of SF/HAp-CUR nanofibers characterized by SEM analysis. Morphological analysis revealed that the average fiber diameter of the SF/HAp, SF/HAp-CUR(1.0%), SF/HAp-CUR(3.0%), and SF/HAp-CUR(5.0%) nanofibers were calculated to be 461 ± 65 nm, 323 ± 90 nm, 412 ± 110, and 497 ± 118 nm. In addition of CUR in the SF/HAp nanofibers significantly improved the mechanical properties in terms of enhanced elongation at break and tensile strengths. The percentages of water uptake and porosity of SF/HAp-CUR nanofibers were 143.7 ± 4.05% and 92.5 ± 3.40%, respectively. The results showed that CUR presented a sustained release behavior from SF/HAp-CUR nanofibers and maintained its free radical scavenging ability. The prepared nanofibers surface interaction was confirmed by FT-IR and XRD analysis. Antibacterial tests revealed SF/HAp-CUR on day 14 improved the bacterial embarrassment of both E. coli and S. aureus by 4 to 5-fold, respectively. The cell cytotoxicity with L929 mouse fibroblasts on the SF/HAp-CUR nanofibers was very low at 7.7 ± 1.75% on day 14. In vivo wound healing showed that the treatment using SF/HAp-CUR nanofibers significantly increased the rate of wound closure (99.6 ± 0.86%) on day 21 compared with that using SF/HAp nanofibers (67.7 ± 4.25%). These results showed that the delivery of SF/HAp-CUR nanofibers can facilitate antibacterial, anti-oxidant, cytotoxicity of wound healing properties.
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Affiliation(s)
- Minlie Yang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
| | - Shun Yu
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
| | - Peng Zhao
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
| | - Longwei Xie
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
| | - Guozhong Lyu
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
| | - Junjie Yu
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, PR China
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29
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Ghanbari E, Mehdipour A, Khazaei M, Khoshfeterat AB, Niknafs B. A review of recent advances on osteogenic applications of Silk fibroin as a potential bio-scaffold in bone tissue engineering. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2032707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Elham Ghanbari
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mozafar Khazaei
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Tissue Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Behrooz Niknafs
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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30
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Șerban MV, Nazarie (Ignat) SR, Dinescu S, Radu IC, Zaharia C, Istrătoiu EA, Tănasă E, Herman H, Gharbia S, Baltă C, Hermenean A, Costache M. Silk ProteinsEnriched Nanocomposite Hydrogels Based on Modified MMT Clay and Poly(2-hydroxyethyl methacrylate-co-2-acrylamido-2-methylpropane Sulfonic Acid) Display Favorable Properties for Soft Tissue Engineering. NANOMATERIALS 2022; 12:nano12030503. [PMID: 35159848 PMCID: PMC8839072 DOI: 10.3390/nano12030503] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023]
Abstract
Due to their remarkable structures and properties, three-dimensional hydrogels and nanostructured clay particles have been extensively studied and have shown a high potential for tissue engineering as solutions for tissue defects. In this study, four types of 2-hydroxyethyl methacrylate/2-acrylamido-2-methylpropane sulfonic acid/montmorillonite (HEMA/AMPSA/MMT) hydrogels enriched with sericin, and fibroin were prepared and studied in the context of regenerative medicine for soft tissue regenerative medicine. Our aim was to obtain crosslinked hydrogel structures using modified montmorillonite clay as a crosslinking agent. In order to improve the in vitro and in vivo biocompatibility, silk proteins were further incorporated within the hydrogel matrix. Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR) were performed to prove the chemical structures of the modified MMT and nanocomposite hydrogels. Swelling and rheological measurements showed the good elastic behavior of the hydrogels due to this unique network structure in which modified MMT acts as a crosslinking agent. Hydrogel biocompatibility was assessed by MTT, LDH and LIVE/DEAD assays. The hydrogels were evaluated for their potential to support adipogenesis in vitro and human stem cells isolated from adipose tissue were seeded in them and induced to differentiate. The progress was assessed by evaluation of expression of adipogenic markers (ppar-γ2, perilipin) evaluated by qPCR. The potential of the materials to support tissue regeneration was further evaluated on animal models in vivo. All materials proved to be biocompatible, with better results on the 95% HEMA 5% AMPSA enriched with sericin and fibroin material. This composition promoted a better development of adipogenesis compared to the other compositions studied, due the addition of sericin and fibroin. The results were confirmed in vivo as well, with a better progress of soft tissue regeneration after implantation in mice. Therefore, hydrogel 95% HEMA 5% AMPSA enriched with sericin as well as fibroin showed the best results that recommend it for future soft tissue engineering application.
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Affiliation(s)
- Mirela Violeta Șerban
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050663 Bucharest, Romania; (M.V.Ș.); (S.-R.N.); (M.C.)
| | - Simona-Rebeca Nazarie (Ignat)
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050663 Bucharest, Romania; (M.V.Ș.); (S.-R.N.); (M.C.)
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050663 Bucharest, Romania; (M.V.Ș.); (S.-R.N.); (M.C.)
- The Research Institute of the University of Bucharest (ICUB), University of Bucharest, 050663 Bucharest, Romania
- Correspondence: (S.D.); (A.H.)
| | - Ionuț-Cristian Radu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (I.-C.R.); (C.Z.); (E.-A.I.); (E.T.)
| | - Cătălin Zaharia
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (I.-C.R.); (C.Z.); (E.-A.I.); (E.T.)
| | - Elena-Alexandra Istrătoiu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (I.-C.R.); (C.Z.); (E.-A.I.); (E.T.)
| | - Eugenia Tănasă
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania; (I.-C.R.); (C.Z.); (E.-A.I.); (E.T.)
| | - Hildegard Herman
- “Aurel Ardelean” Institute of Life Sciences, ”Vasile Goldiș” Western University of Arad, 310025 Arad, Romania; (H.H.); (S.G.); (C.B.)
| | - Sami Gharbia
- “Aurel Ardelean” Institute of Life Sciences, ”Vasile Goldiș” Western University of Arad, 310025 Arad, Romania; (H.H.); (S.G.); (C.B.)
| | - Cornel Baltă
- “Aurel Ardelean” Institute of Life Sciences, ”Vasile Goldiș” Western University of Arad, 310025 Arad, Romania; (H.H.); (S.G.); (C.B.)
| | - Anca Hermenean
- “Aurel Ardelean” Institute of Life Sciences, ”Vasile Goldiș” Western University of Arad, 310025 Arad, Romania; (H.H.); (S.G.); (C.B.)
- Correspondence: (S.D.); (A.H.)
| | - Marieta Costache
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050663 Bucharest, Romania; (M.V.Ș.); (S.-R.N.); (M.C.)
- The Research Institute of the University of Bucharest (ICUB), University of Bucharest, 050663 Bucharest, Romania
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31
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Pham DM, Dey S, Katayama A. Activation of extracellular electron network in non-electroactive bacteria by Bombyx mori silk. Int J Biol Macromol 2022; 195:1-11. [PMID: 34871655 DOI: 10.1016/j.ijbiomac.2021.11.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/18/2021] [Accepted: 11/27/2021] [Indexed: 11/05/2022]
Abstract
Extracellular electron transfer material (EETM) has increasingly attracted attentions for the enhancing effect on multiple microbial reactions. Especially, EETM is known to be essential to activate the energy network in non-electroactive bacteria. It is motivated to find out an EETM which is natural-based, environmentally friendly, and easily produced at large-scale. In this study, Bombyx mori silk is found, for the first time, to function as an EETM by using an EETM-dependent pentachlorophenol (PCP) dechlorinating anaerobic microbial culture. Subsequently, by dividing fibroin fiber into different soluble/insoluble fractions and correlating their EET functions with their structural properties based on various spectroscopic analyses, the β-sheet configuration is suggested as an essential structure supporting the EET function of silk materials. The analyses also suggested the involvement of sulfur-containing amino acids in this function. The EET function is not degraded by boiling or acid/alkaline treatments and the material can be utilized multiple times, although it is susceptible to UV irradiation. Bombyx mori silk also enhance other microbial reactions, including Fe(III)OOH reduction, CO2 reduction to acetate, and nitrogen fixation. This discovery provides a basis for developing biotechnology for environmental remediation, global warming reduction, and biofertilizer production using Bombyx mori silk and its wastes.
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Affiliation(s)
- Duyen M Pham
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan.
| | - Sujan Dey
- Department of Civil Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Arata Katayama
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan; Department of Civil Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
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32
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Yu H, Li Y, Zhang Z, Ren J, Zhang L, Xu Z, Kang Y, Xue P. Silk fibroin-capped metal-organic framework for tumor-specific redox dyshomeostasis treatment synergized by deoxygenation-driven chemotherapy. Acta Biomater 2022; 138:545-560. [PMID: 34775125 DOI: 10.1016/j.actbio.2021.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/29/2021] [Accepted: 11/06/2021] [Indexed: 12/13/2022]
Abstract
Disturbance in redox homeostasis always leads to oxidative damages to cellular components, which inhibits cancer cell proliferation and causes tumor regression. Therefore, synergistic effects arising from cellular redox imbalance together with other treatment modalities are worth further investigation. Herein, a metal-organic framework nanosystem (NMOF) based on coordination between Fe (III) and 4,4,4,4-(porphine-5,10,15,20-tetrayl) tetrakis (benzoic acid) (TCPP) was synthesized through a one-pot method. After surface capping of silk fibroin (SF) to form NMOF@SF nanoparticles (NPs), this nanoplatform can serve as an eligible nanocarrier to deliver tirapazamine (TPZ), a hypoxia-activated precursor. As-developed NS@TPZ (NST) NPs remained inactive in the normal tissue, whereas became highly active upon endocytosis by tumor cells via glutathione (GSH)-mediated reduction of Fe (III) into Fe (II), further enabling Fe (II)-mediated chemodynamic therapy (CDT). Upon optical laser irradiation, TCPP-mediated photodynamic therapy (PDT) coordinated with CDT to aggravate intracellular oxidative stress. Thus, such reactive oxygen species accumulation and GSH deprivation contributed to a deleterious redox dyshomeostasis. On the other hand, local deoxygenation caused by PDT can increase the cytotoxicity of released TPZ, which significantly improved the integral therapeutic effectiveness relying on the combined redox balance disruption and bioreductive chemotherapy. More importantly, severe immunogenic cell death can be triggered by the combinatorial treatment modalities and the presence of SF, which facilitated an almost complete tumor eradication in vivo. Taken together, this paradigm provides an insightful strategy for tumor-specific redox dyshomeostasis treatment synergized by deoxygenation-driven chemotherapy, which can remarkably enhance antitumor efficacy with negligible adverse effects. STATEMENT OF SIGNIFICANCE: Recently, silk fibroin (SF) has been demonstrated to be effective in activating antitumor immune system through polarization tumor-associated macrophages into M1 subtype. However, engineering SF into multifunctional nanocomposites is seldom reported for combination tumor therapy. In another aspect, disruption of redox homeostasis becomes increasingly attractive for tumor suppression with high clinical-relevance. Herein, we established a newfashioned NMOF nanosystem, named as NST, for tumor-specific redox dyshomeostasis treatment synergized by deoxygenation-driven chemotherapy. This platform takes advantages of Fe2+/Fe3+ coupled Fenton-like reaction and GSH depletion, as well as TCPP-mediated photosensitization for admirable redox unbalancing, which further initiates hypoxia-relevant toxin of TPZ for chemotherapy. Finally, combinatorial treatments and the presence of SF could trigger ICD for rendering a complete tumor eradication in vivo.
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ESHCHANOV K, BALTAYEVA M. Determination of the molecular mass of hydrolyzed fibroin obtained from natural silk fibroin by spectrophotometry. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2022. [DOI: 10.18596/jotcsa.969482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Mueller K, Saha K. Single Cell Technologies to Dissect Heterogenous Immune Cell Therapy Products. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021; 20:100343. [PMID: 34957355 PMCID: PMC8693636 DOI: 10.1016/j.cobme.2021.100343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Single cell tools have dramatically transformed the life sciences; concurrently, autologous and allogeneic immune cell therapies have recently entered the clinic. Here we discuss methods, applications, and considerations for single cell technologies in the context of immune cell manufacturing. Molecular heterogeneity can be profiled at the level of the genome, epigenome, transcriptome, proteome, metabolome, and antigen receptor repertoire, in isolation or in tandem through multi-omic approaches. Such data inform heterogeneity within cell products and can be linked to potency readouts and clinical data, with the ultimate goal of identifying Critical Quality Attributes to predict patient outcomes. Non-destructive approaches hold promise for monitoring cell state and analyzing the impacts of gene edits within engineered products. Destructive omics approaches could be combined with non-destructive technologies to predict therapeutic potency. These technologies are poised to redefine cell manufacturing toward rapid, cost-effective, and high-throughput methods to detect and respond to dynamic cell states.
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Affiliation(s)
- Katherine Mueller
- Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, Wisconsin
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin
| | - Krishanu Saha
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin
- Grainger Institute for Engineering, University of Wisconsin-Madison, Madison, Wisconsin
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Piaia L, Silva SS, Gomes JM, R Franco A, Fernandes EM, Lobo FCM, Rodrigues LC, Leonor IB, Fredel MC, Salmoria GV, Hotza D, Reis RL. Chitosan/ β-TCP composites scaffolds coated with silk fibroin: a bone tissue engineering approach. Biomed Mater 2021; 17. [PMID: 34785622 DOI: 10.1088/1748-605x/ac355a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 11/01/2021] [Indexed: 11/12/2022]
Abstract
Bone regeneration and natural repair are long-standing processes that can lead to uneven new tissue growth. By introducing scaffolds that can be autografts and/or allografts, tissue engineering provides new approaches to manage the major burdens involved in this process. Polymeric scaffolds allow the incorporation of bioactive agents that improve their biological and mechanical performance, making them suitable materials for bone regeneration solutions. The present work aimed to create chitosan/beta-tricalcium phosphate-based scaffolds coated with silk fibroin and evaluate their potential for bone tissue engineering. Results showed that the obtained scaffolds have porosities up to 86%, interconnectivity up to 96%, pore sizes in the range of 60-170 μm, and a stiffness ranging from 1 to 2 MPa. Furthermore, when cultured with MC3T3 cells, the scaffolds were able to form apatite crystals after 21 d; and they were able to support cell growth and proliferation up to 14 d of culture. Besides, cellular proliferation was higher on the scaffolds coated with silk. These outcomes further demonstrate that the developed structures are suitable candidates to enhance bone tissue engineering.
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Affiliation(s)
- Lya Piaia
- Laboratory of Innovation on Additive Manufacturing and Molding (NIMMA), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Simone S Silva
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Joana M Gomes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Albina R Franco
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Emanuel M Fernandes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Flávia C M Lobo
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Luísa C Rodrigues
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Isabel B Leonor
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Márcio C Fredel
- Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Laboratory of Ceramic Materials and Composites (CERMAT), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Gean V Salmoria
- Laboratory of Innovation on Additive Manufacturing and Molding (NIMMA), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Biomechanics Engineering Laboratory, University Hospital (HU), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Dachamir Hotza
- Interdisciplinary Laboratory for the Development of Nanostructures (LINDEN), Department of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil.,Laboratory of Ceramic Materials and Composites (CERMAT), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
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Saltik Çirkin D, Yüksek M. Fibroin nanofibers production by electrospinning method. Turk J Chem 2021; 45:1279-1298. [PMID: 34707451 PMCID: PMC8517617 DOI: 10.3906/kim-2011-36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 06/22/2021] [Indexed: 11/11/2022] Open
Abstract
Silk fibroin, which has many characteristic properties such as low inflammation reaction, biodegradation, suppleness, good antithrombogenic details, biocompatibility and high tensile strength is a very good candidate for biomedical applications. Electrospinning procures high surface area, porous, nanofiber dimension fiber generation, which is a plain method. An experimental study was carried out to produce nanofiber structure from silk fibroin by electrospinning and the electrospinning parameters for the spinning of uniform, continuous and silk fibroin fibers were optimized. As a result, the effect of variables of concentration, distance and applied voltage on the strength, thickness, surface structure, fiber diameter of nanomaterial was investigated. Then, in vitro cell viability of the silk fibroin mat was analyzed. It was seen that the strength, mat thickness, and fiber diameter increased with solution concentration rise. It was found that the values of the fiber diameter and tensile strength decreased with increasing distance. It was determined that the effect of distance varies depending on the concentration in the mat thicknesses. The tensile strength was affected inversely proportional the applied voltage rises and distance. It was found that the fiber diameter values decreased together with increasing applied voltage. At cell viability of silk fibroin mat was occurred high cell viability after 24 h, but it was obtained low cell viability at the 48th h.
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Affiliation(s)
- Derya Saltik Çirkin
- Institute of Pure and Applied Sciences, Faculty of Technology, Textile Engineering, Marmara University, İstanbul Turkey
| | - Metin Yüksek
- Faculty of Technology, Textile Engineering, Marmara University, İstanbul Turkey
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37
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Medvecky L, Giretova M, Stulajterova R, Luptakova L, Sopcak T, Girman V. Osteogenic potential and properties of injectable silk fibroin/tetracalcium phosphate/monetite composite powder biocement systems. J Biomed Mater Res B Appl Biomater 2021; 110:668-678. [PMID: 34569694 DOI: 10.1002/jbm.b.34945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 11/08/2022]
Abstract
The powdered cement tetracalcium phosphate/monetite/silk fibroin composite (CFIB) was prepared by simple mechanical milling of tetracalcium phosphate/monetite powder mixture with fibrous soluble silk fibroin (SF). The powder composite cement mixtures contained 5 and 10 wt % of SF and 2% NaH2 PO4 solution with 0.1% genipin was used as a liquid component. The setting time of CFIB cement increased with addition of SF from 5 to 25 min in fully injectable cement with 10 wt % of SF. The compressive strength of hardened composites was reduced to 14 MPa which is close to strength of cancellous bone. The 8% of SF from origin amount in CFIB composites was only desorbed from cements after 7 days soaking in simulated body fluid (SBF). It was found almost full transformation of calcium phosphate components in composite to rod-like nanohydroxyapatite after hardening of CFIB cements in SBF. The SF in hardened cements was present in fine globular form after dissolution, actively affected the fluidity of pastes, morphology of hydroxyapatite particles, and microstructure. The excellent cell proliferation and a high over expression of osteogenic gene markers in MSCs were confirmed after the long-time cultivation in CFIB10 cement extract. Injectable CFIB10 cements have appropriate properties for utilization in bone defect treatments with possible positive effect on healing process.
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Affiliation(s)
- Lubomir Medvecky
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Kosice, Slovakia
| | - Maria Giretova
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Kosice, Slovakia
| | - Radoslava Stulajterova
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Kosice, Slovakia
| | - Lenka Luptakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, Kosice, Slovakia
| | - Tibor Sopcak
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Kosice, Slovakia
| | - Vladimir Girman
- Department of Functional and Hybrid Materials, Institute of Materials Research of SAS, Kosice, Slovakia
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38
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An Insulin-like Growth Factor-1 Conjugated Bombyx mori Silk Fibroin Film for Diabetic Wound Healing: Fabrication, Physicochemical Property Characterization, and Dosage Optimization In Vitro and In Vivo. Pharmaceutics 2021; 13:pharmaceutics13091459. [PMID: 34575535 PMCID: PMC8468198 DOI: 10.3390/pharmaceutics13091459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 11/19/2022] Open
Abstract
This study aimed to develop a silk fibroin (SF)-film for the treatment of chronic diabetic wounds. Silk fibroin was purified through a newly developed heating degumming (HD) process and casted on a hydrophobic surface to form SF-films. The process allowed the fabricated film to achieve a 42% increase in transparency and a 32% higher proliferation rate for BALB/3T3 fibroblasts compared to that obtained by conventional alkaline degumming treatment. Fourier transform infrared analysis demonstrated that secondary structure was retained in both HD- and alkaline degumming-derived SF preparations, although the crystallinity of beta-sheet in SF-film after the HD processing was slightly increased. This study also investigated whether conjugating insulin-like growth factor-1 (IGF-1) would promote diabetic wound healing and what the optimal dosage is. Using BALB/3T3 cells grown in hyperglycemic medium as a model, it was demonstrated that the optimal IGF-1 dosage to promote the cell growth was approximately 0.65 pmol. Further analysis of wound healing in a diabetic mouse model indicated that SF-film loaded with 3.25 pmol of IGF-1 showed significantly superior wound closure, a 13% increase at the 13th day after treatment relative to treatment with 65 pmol of free IGF-1. Improvement in diabetic wound healing was exerted synergistically by SF-film and IGF-1, as reflected by parameters including levels of re-epithelialization, epithelial tissue area, and angiogenesis. Finally, IGF-1 increased the epithelial tissue area and micro-vessel formation in a dose-dependent manner in a low dosage range (3.25 pmol) when loaded to SF-films. Together, these results strongly suggest that SF-film produced using HD and loaded with a low dosage of IGF-1 is a promising dressing for diabetic wound therapy.
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Lee JC, Suh IW, Park CH, Kim CS. Polyvinylidene fluoride/silk fibroin-based bio-piezoelectric nanofibrous scaffolds for biomedical application. J Tissue Eng Regen Med 2021; 15:869-877. [PMID: 34339581 DOI: 10.1002/term.3232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/13/2021] [Accepted: 06/29/2021] [Indexed: 11/08/2022]
Abstract
Since the discovery that applying electrical stimulation can promote cell growth, proliferation, and tissue regeneration, research on bio-piezoelectric materials is being actively conducted. In this study, a composite material was prepared by mixing polyvinylidene fluoride (PVDF), a conventional piezoelectric polymer, and silk fibroin (SF), a natural piezoelectric material that recently attracting attention. These two polymers were fabricated into a composite fiber mat using electrospinning technology. To find optimal conditions, SF was added in various ratios to prepare electrospun PVDF/SF mats. The characteristics of these PVDF/SF composite mats were then analyzed through various evaluations and in vitro studies. It was confirmed that PVDF and SF were successfully mixed through scanning electron microscope images and structural analysis such as x-ray diffractometer and Fourier transform infrared. The results revealed that adding an appropriate amount of SF could improve the tensile strength, enhance cell proliferation rate, and generate a voltage similar to that of a conventional PVDF-only electrospinning mat. Such fabricated electrospun PVDF/SF composite mats are expected to be useful in the bio-piezoelectric field because they can maintain piezoelectricity while compensating for the shortcomings, such as low physical properties, of a PVDF electrospun mat.
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Affiliation(s)
- Jeong Chan Lee
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea
| | - Il Won Suh
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea
| | - Chan Hee Park
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea.,Division of Mechanical Design Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea.,Eco-friendly Machine Parts Design Research Center, Jeonbuk National University, Jeonju, Korea
| | - Cheol Sang Kim
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea.,Division of Mechanical Design Engineering, Graduate School, Jeonbuk National University, Jeonju, Korea.,Eco-friendly Machine Parts Design Research Center, Jeonbuk National University, Jeonju, Korea
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40
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Ghosh T, Mondal K, Giri BS, Katiyar V. Silk nanodisc based edible chitosan nanocomposite coating for fresh produces: A candidate with superior thermal, hydrophobic, optical, mechanical and food properties. Food Chem 2021; 360:130048. [PMID: 34034054 DOI: 10.1016/j.foodchem.2021.130048] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/26/2021] [Accepted: 05/07/2021] [Indexed: 01/01/2023]
Abstract
This paper demonstrates the fabrication of silk nanodisc (SND) dispersed chitosan (CS) based new edible coating as a candidate for superior thermal, hydrophobic, optical, mechanical, and physicochemical properties, which further provide remarkable storage quality for banana fruits. Fabrication of SND is attained following acid hydrolysis of silk fibroin (SF), where the successful nanostructures formulations are analyzed by FESEM, FETEM and XRD analysis delivering disc shaped morphology with amplified crystallinity (~95.0%). The SF has been fabricated from waste muga cocoons using the degumming process. The superior thermal stability of SND compared to SF portray a new era in required heat resistant packaging. The effectiveness of SND is investigated on packaging properties of CS biocomposites including thermal, wettability, mechanical, color, surface morphology, and others. Wettability of SND incorporated CS biocomposite enhanced by ~ 10° suggesting improved hydrophobicity. The edible coatings are a new candidate to improve the shelf life of bananas over 7 days at 25 °C for prevailing original weight, optical property, firmness, and others.
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Affiliation(s)
- Tabli Ghosh
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039
| | - Kona Mondal
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039
| | - Balendu Shekher Giri
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039
| | - Vimal Katiyar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam-781039.
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Khademolqorani S, Tavanai H, Chronakis IS, Boisen A, Ajalloueian F. The determinant role of fabrication technique in final characteristics of scaffolds for tissue engineering applications: A focus on silk fibroin-based scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111867. [PMID: 33641889 DOI: 10.1016/j.msec.2021.111867] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 02/05/2023]
Abstract
3D scaffolds are in the center of attention for tissue engineering applications. Whilst many studies have focused on the biological properties of scaffolds, less attention has been paid to meeting the biomechanics of the target tissues. In this work, we show how using the same original biomaterial, but different fabrication techniques can lead to a broad range of structural, mechanical, and biological characteristics. Starting with silk fibroin filament as our base biomaterial, we employed electrospinning, film casting, and weft knitting as different scaffold fabrication techniques. Among these three, the weft knit scaffold showed outstanding cell-scaffold interaction including full 3D cell attachment, complete cell coverage around individual filaments, and in-depth cell infiltration. Post-fabrication degumming of silk filament yarns resulted in more bulky and less open pores for the silk fibroin knit scaffold. The decreased pore size after degumming of knit scaffold alleviated the need to in-advance pore filling (a requisite for increasing cell adhesion in a typical knit scaffold having big pores). From a mechanical viewpoint, the weft knit scaffold shows the highest mechanical strength alongside with far better extensibility. Interestingly, the silk filament weft knit scaffold (in the course direction) was 100 and 1000 times more compliant than silk fibroin film and electrospun web, respectively. The observed effect of material type and fabrication technique highlights the suitability of silk fibroin weft-knit scaffolds for the regeneration of load-bearing soft tissues such as urine bladder.
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Affiliation(s)
- Sanaz Khademolqorani
- Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Hossein Tavanai
- Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Ioannis S Chronakis
- Nano-Bioscience Research Group, DTU-Food, Technical University of Denmark, Kemitorvet, B202, 2800 Kgs. Lyngby, Denmark
| | - Anja Boisen
- Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800 Kgs. Lyngby, Denmark; The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800 Kgs. Lyngby, Denmark
| | - Fatemeh Ajalloueian
- Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800 Kgs. Lyngby, Denmark; The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800 Kgs. Lyngby, Denmark.
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42
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Banerjee S. Long-term incubation of myoglobin with glyoxal induces amyloid like aggregation of the heme protein: Implications of advanced glycation end products in protein conformational disorders. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Bucciarelli A, Greco G, Corridori I, Pugno NM, Motta A. A Design of Experiment Rational Optimization of the Degumming Process and Its Impact on the Silk Fibroin Properties. ACS Biomater Sci Eng 2021; 7:1374-1393. [DOI: 10.1021/acsbiomaterials.0c01657] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alessio Bucciarelli
- Microsystem Technology Group, Center for Materials and Microsystems, Fondazione Bruno Kessler, Via Sommarive 9, Trento 38123, Italy
| | - Gabriele Greco
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials and Mechanics, Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, Trento 38123, Italy
| | - Ilaria Corridori
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials and Mechanics, Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, Trento 38123, Italy
| | - Nicola M. Pugno
- Laboratory of Bio-inspired, Bionic, Nano, Meta Materials and Mechanics, Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, Trento 38123, Italy
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, E14NS London, United Kingdom
| | - Antonella Motta
- Department of Industrial Engieneering, University of Trento, Via Delle Regole 101, Trento 38123, Italy
- BIOTech Research Center and European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Via Delle Regole 101, Trento 38123, Italy
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44
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Development of robust, ultra-smooth, flexible and transparent regenerated silk composite films for bio-integrated electronic device applications. Int J Biol Macromol 2021; 176:498-509. [PMID: 33571588 DOI: 10.1016/j.ijbiomac.2021.02.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 01/21/2023]
Abstract
Regenerated Silk Fibroin (RSF) films are considered promising substrate candidates primarily in the field of bio-integrated electronic device applications. The key issues that ought to be addressed to exploit the inherent advantages of silk thin films include enhancing their flexibility and chemical durability. Such films find a plethora of applications, the significant one being conformal, transparent microelectrode arrays. Elevated temperatures that are regularly used in lithographic processes tend to dehydrate RSF films, making them brittle. Furthermore, the solvents/etchants used in typical device fabrication results in the formation of micro-cracks. This paper addressed both these issues by developing composite films and studying the effect of biodegradable additives in enhancing flexibility and chemical durability without compromising on optical transparency and surface smoothness. Through our rigorous experimentation, regenerated silk blended with Polyvinyl Alcohol (Silk/PVA) is identified as the composite for achieving the objectives. Furthermore, the Cyto-compatibility studies suggest that Silk/PVA, along with all other silk composites, have shown above 80% cell viability, as verified using L929 fibroblast cell lines. Going a step further, we demonstrated the successful patterning of 32 channel optically transparent microelectrode array (MEA) pattern, with a minimum feature size of 5 μm above the free-standing and optically transparent Silk/PVA composite film.
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Reizabal A, Costa CM, Saiz PG, Gonzalez B, Pérez-Álvarez L, Fernández de Luis R, Garcia A, Vilas-Vilela JL, Lanceros-Méndez S. Processing Strategies to Obtain Highly Porous Silk Fibroin Structures with Tailored Microstructure and Molecular Characteristics and Their Applicability in Water Remediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123675. [PMID: 32846265 DOI: 10.1016/j.jhazmat.2020.123675] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
The present work reports on the control of silk fibroin (SF) porous structures performance through various processing methods. The study includes the analysis of two dissolving techniques (CaCl2/H2O/EtOH ternary and LiBr/H2O binary solutions), three regeneration methods (gelation, lyophilization and gas foaming) and one post-processing (EtOH). In all the cases, followed steps lead to SF structures with porosity values above 94% and large surface areas. Also, results about samples microstructure, secondary organization, crystallinity and water behavior, reveal a direct correlation between processing and SF properties. Thanks to the achieved progress, the SF varying porous structures were evaluated for metalloids (As5+ and As3+) and heavy metals (Cr6+ and Cr3+) adsorption, observing a direct relationship between samples processing and ionic species adsorption ability. Thus, it is shown that the control of the properties of SF based porous structures through processing, represents a suitable and ecofriendly approach for the development of bio-based materials for environmental applications.
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Affiliation(s)
- A Reizabal
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain.
| | - C M Costa
- Centro de Física, Universidade do Minho, 4710-057, Braga, Portugal; Centro de Química, Universidade do Minho, 4710-057, Braga, Portugal
| | - P G Saiz
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - B Gonzalez
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Av. Tupper 2007, Santiago, 8370451, Chile
| | - L Pérez-Álvarez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain
| | - R Fernández de Luis
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - A Garcia
- Advanced Mining Technology Center (AMTC), Universidad de Chile, Av. Tupper 2007, Santiago, 8370451, Chile
| | - J L Vilas-Vilela
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco/EHU, Apdo. 644, Bilbao, Spain
| | - S Lanceros-Méndez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain
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Gürel-Gökmen B, Taslak HD, Özcan O, İpar N, Tunali-Akbay T. Polycaprolactone/silk fibroin electrospun nanofibers-based lateral flow test strip for quick and facile determination of bisphenol A in breast milk. J Biomed Mater Res B Appl Biomater 2021; 109:1455-1464. [PMID: 33501724 DOI: 10.1002/jbm.b.34805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 12/13/2020] [Accepted: 01/09/2021] [Indexed: 01/06/2023]
Abstract
This study aimed to develop a sensitive lateral flow test strip for the detection of bisphenol A (BPA) in breast milk. Conventional nitrocellulose test membrane was coated with the coaxial nanofiber, consisting of the inner polycaprolactone (PCL) and the outer PCL/silk fibroin (SF) mixture, to decrease the flow rate of the breast milk in the lateral flow assay (LFA). The nanofiber was prepared by using coaxial electrospinning, and BPA antibody was immobilized physically to the nanofiber. This nanofiber was used as a test membrane in the LFA. Color changes on the test membrane were evaluated as the signal intensity of the BPA. Breast milk creates a background on surfaces due to its structural properties. This background was detected by comparing the signal intensity with the signal intensity of water. The higher signal intensity was found in water samples when compared to breast milk samples. Although the detection limit is 2 ng/ml in both coaxial PCL/SF nanofiber and nitrocellulose (NC) test membranes, the color intensity increased with the increasing BPA concentration in the coaxial PCL/SF nanofiber. As a new dimension, the coaxial PCL/SF nanofiber provided higher color intensity than the NC membrane. In conclusion, a sensitive onsite method was developed for the detection of BPA in breast milk by using new coaxial PCL/SF nanofiber as a test membrane in LFA.
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Affiliation(s)
- Begüm Gürel-Gökmen
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Hava Dudu Taslak
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Ozan Özcan
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
| | - Necla İpar
- Department of Pediatrics, Koc University Hospital, İstanbul, Turkey
| | - Tuğba Tunali-Akbay
- Faculty of Dentistry, Department of Biochemistry, Marmara University, İstanbul, Turkey
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Farasatkia A, Kharaziha M, Ashrafizadeh F, Salehi S. Transparent silk/gelatin methacrylate (GelMA) fibrillar film for corneal regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111744. [DOI: 10.1016/j.msec.2020.111744] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/20/2020] [Accepted: 11/18/2020] [Indexed: 12/13/2022]
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Tailorable hydrogel of gelatin with silk fibroin and its activation/crosslinking for enhanced proliferation of fibroblast cells. Int J Biol Macromol 2020; 164:4073-4083. [DOI: 10.1016/j.ijbiomac.2020.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023]
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Rampias T. Exploring the Eco-Evolutionary Dynamics of Tumor Subclones. Cancers (Basel) 2020; 12:cancers12113436. [PMID: 33228073 PMCID: PMC7699358 DOI: 10.3390/cancers12113436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/17/2020] [Indexed: 11/16/2022] Open
Abstract
Mutational processes constantly shape the cancer genome and defects in DNA repair pathways of tumor cells facilitate the accumulation of genomic alterations [...].
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Affiliation(s)
- Theodoros Rampias
- Biomedical Research Foundation of the Academy of Athens, Basic Research Center, 11527 Athens, Greece
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Barlian A, Judawisastra H, Ridwan A, Wahyuni AR, Lingga ME. Chondrogenic differentiation of Wharton's Jelly mesenchymal stem cells on silk spidroin-fibroin mix scaffold supplemented with L-ascorbic acid and platelet rich plasma. Sci Rep 2020; 10:19449. [PMID: 33173146 PMCID: PMC7656266 DOI: 10.1038/s41598-020-76466-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/21/2020] [Indexed: 01/08/2023] Open
Abstract
In this research, hWJ-MSCs were grown on silk scaffolds and induced towards chondrogenesis by supplementation with L-ascorbic acid (LAA) or platelet rich plasma (PRP). Silk scaffolds were fabricated with salt leaching method by mixing silk fibroin (SF) with silk spidroin (SS). The silk fibroin was obtained from Bombyx mori cocoon that had been degummed, and the silk spidroin was obtained from wild-type spider Argiope appensa. The effect of scaffold composition and inducer on cell proliferation was observed through MTT assay. The most optimal treatment then continued to be used to induce hWJ-MSC towards chondrogenic differentiation for 7 and 21 days. Scaffolds characterization showed that the scaffolds produced had 3D structure with interconnected pores, and all were biocompatible with hWJ-MSCs. Scaffold with the addition of 10% SS + 90% SF showed higher compressive strength and better pore interconnectivity in comparison to 100% silk fibroin scaffold. After 48 h, cells seeded on scaffold with spidroin and fibroin mix had flattened morphology in comparison to silk fibroin scaffold which appeared to be more rounded on the scaffold surface. Scaffold with 10% (w/w) of silk spidroin (SS) + 90% (w/w) of silk fibroin (SF) was the most optimal composition for cell proliferation. Immunocytochemistry of integrin β1 and RGD sequence, showed that scaffold with SS 10% provide better cell attachment with the presence of RGD sequence from the spidroin silk which could explain the higher cell proliferation than SF100% scaffold. Based on Alcian Blue staining and Collagen Type II immunocytochemistry (ICC), cells grown on 10% SS + 90% SF scaffold with 10% PRP supplementation were the most optimal to support chondrogenesis of hWJ-MSCs. These results showed that the addition of spidroin silk from A. appensa. had impact on scaffold compressive strength and chondrogenic differentiation of hWJ-MSC and had the potential for further development of bio-based material scaffold in cartilage tissue engineering.
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Affiliation(s)
- Anggraini Barlian
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia.
- Research Center for Nanosciences and Nanotechnology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia.
| | - Hermawan Judawisastra
- Faculty of Mechanical and Aerospace Engineering, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Ahmad Ridwan
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Antonia Ratih Wahyuni
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
| | - Meidiana Ebtayani Lingga
- School of Life Science and Technology, Bandung Institute of Technology, Bandung, West Java, 40132, Indonesia
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