Tianlong Li , Qiulan Wen , Fengyi Zhu , Yuting Hu , Jun Gong , Xibing Zhang , Chaoyang Huang , Hai Zhou , Lianglong Chen , Yingsong Pan
{"title":"A tranexamic acid-functionalized acellular dermal matrix sponge co-loaded with magnesium ions: Enhancing hemostasis, vascular regeneration, and re-epithelialization for comprehensive diabetic wound healing","authors":"Tianlong Li , Qiulan Wen , Fengyi Zhu , Yuting Hu , Jun Gong , Xibing Zhang , Chaoyang Huang , Hai Zhou , Lianglong Chen , Yingsong Pan","doi":"10.1016/j.bioadv.2024.214096","DOIUrl":"10.1016/j.bioadv.2024.214096","url":null,"abstract":"<div><div>Excessive inflammation, accumulation of wound exudate, and blood seepage are common in diabetic wounds, hindering cell proliferation and disrupting tissue remodeling, leading to delayed healing. This study presents a multifunctional sponge scaffold (P<sub>5</sub>T<sub>3</sub>@Mg) created by combining an acellular dermal matrix with tranexamic acid and MgO nanoparticles, designed for hemostatic and anti-inflammatory effects. The P<sub>5</sub>T<sub>3</sub>@Mg scaffold effectively absorbs wound fluid while promoting healing. In vivo and in vitro hemostasis experiments demonstrate that the P<sub>5</sub>T<sub>3</sub>@Mg sponge exhibits excellent hydrophilicity, enhancing blood absorption at the wound site, inhibiting fibrinolysis, and expediting hemostasis. Additionally, the sustained release of Mg<sup>2+</sup> from the P<sub>5</sub>T<sub>3</sub>@Mg sponge promotes collagen deposition and angiogenesis in diabetic rat wounds, suppressing chronic inflammation and accelerating tissue remodeling and repair.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214096"},"PeriodicalIF":5.5,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daohuan Lu , Kehan Cai , Zhiwen Zeng , Jun Huang , Nianfang Ma , Botao Gao , Shan Yu
{"title":"VEGF loading heparinized hyaluronic acid macroporous hydrogels for enhanced 3D endothelial cell migration and vascularization","authors":"Daohuan Lu , Kehan Cai , Zhiwen Zeng , Jun Huang , Nianfang Ma , Botao Gao , Shan Yu","doi":"10.1016/j.bioadv.2024.214094","DOIUrl":"10.1016/j.bioadv.2024.214094","url":null,"abstract":"<div><div>The formation of robust vascular systems within voluminous scaffolds remains a formidable barrier in the realm of tissue engineering. There is a growing interest in the integration of biomaterial scaffolds with multiple physical and chemical stimuli to augment the process of vascularization. This study aims to investigate the combined impact of macroporous structures and vascular endothelial growth factor (VEGF) on cell migration and vascularization. Heparinized hyaluronic acid (HepHA) macroporous hydrogels with differing pore sizes, composed by methacrylated hyaluronic acid (HAMA) and methacrylated heparin (HepMA), were fabricated by a gelatin microspheres (GMS) template leaching method. After characterization of their physical properties, VEGF was immobilized on the HepHA hydrogels. The <em>in vitro</em> release study indicated that the HepHA hydrogels can provide sustained release of VEGF. Subsequently, cells migration of human umbilical vein endothelial (HUVECs) assessment indicated that HUVECs cultured on VEGF-loaded HepHA hydrogels with larger pores (VEGF@HepHA250) migrated the furthest. Finally, the hydrogels were implanted and evaluated using a dorsal subcutaneous model. The histological analyses conducted <em>in vivo</em> were consistent with the <em>in vitro</em> results, VEGF@HepHA250 hydrogels exhibited the most pronounced vascularization four weeks post-implantation, indicating that hydrogels with expanded pores and an enriched VEGF promoted angiogenesis within the hydrogels. This study sheds light on the synergistic effects of VEGF release on 3D cell migration and vascularization within hydrogels of differing pore sizes, thus providing novel insights into the strategic design and fabrication of tissue-engineered scaffolds that are amenable to vascularization.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214094"},"PeriodicalIF":5.5,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dildar Khan , Naveed Ahmed , Adil Muhammad , Kifayat Ullah Shah , Maria Mir , Asim.ur. Rehman
{"title":"A macromolecule infliximab loaded reverse nanomicelles-based transdermal hydrogel: An innovative approach against rheumatoid arthritis","authors":"Dildar Khan , Naveed Ahmed , Adil Muhammad , Kifayat Ullah Shah , Maria Mir , Asim.ur. Rehman","doi":"10.1016/j.bioadv.2024.214093","DOIUrl":"10.1016/j.bioadv.2024.214093","url":null,"abstract":"<div><div>Infliximab (IFX) is used as a biotherapeutic agent for the treatment of rheumatoid arthritis (RA); however, its biological activity is lost orally because of variations in gastric pH and enzymatic degradation, and reduced bioavailability. The authors have tried to improve the efficacy of macromolecule delivery through transdermal route. Polycaprolactone-Polyethylene glycol-Polycaprolactone (PCL-PEG-PCL) triblock copolymer previously synthesized and was used as an efficient carrier for the preparation of IFX loaded reverse nanomicelles (IFX-RNMs). The RNMs were fabricated <em>via</em> nanoprecipitation technique, characterized and then were incorporated into a Carbopol-based hydrogel with eucalyptus oil (EO) as a penetration enhancer. The optimized RNMs had a particle size of 72.32 nm and an encapsulation efficiency of 83 %. <em>In vitro</em> release, exhibited a sustained pattern of IFX from the prepared carrier system, <em>ex-vivo</em> skin permeation and fluorescence microscopic studies revealed that IFX-RNMs loaded hydrogel with EO markedly improved permeation. An <em>in vivo</em> study was carried out on a CFA-induced RA mice model that revealed significant improvements in the results of behavioral parameters, biochemical assays, histopathological and radiological analysis. Overall, the results concluded that the IFX-RNMs loaded hydrogel can be used as a suitable approach for treating RA.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214093"},"PeriodicalIF":5.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vânia I.B. Castro , Sara Amorim , David Caballero , Catarina M. Abreu , Subhas C. Kundu , Rui L. Reis , Iva Pashkuleva , Ricardo A. Pires
{"title":"Patterned glycopeptide-based supramolecular hydrogel promotes the alignment and contractility of iPSC-derived cardiomyocytes","authors":"Vânia I.B. Castro , Sara Amorim , David Caballero , Catarina M. Abreu , Subhas C. Kundu , Rui L. Reis , Iva Pashkuleva , Ricardo A. Pires","doi":"10.1016/j.bioadv.2024.214091","DOIUrl":"10.1016/j.bioadv.2024.214091","url":null,"abstract":"<div><div>The functional restoration of a damaged cardiac tissue relies on a synchronized contractile capacity of exogenous and/or endogenous cardiomyocytes, which is challenging to achieve. Here, we explored the potential of the short glycopeptide diphenylalanine glucosamine-6-sulfate (FFGlcN6S) conjugated with an aromatic moiety, namely fluorenylmethoxycarbonyl (Fmoc), to enhance cardiac tissue regeneration. At physiological conditions, Fmoc-FFGlcN6S assembles into nanofibrous hydrated meshes, i.e., matrix mimicking hydrogels. These hydrogels can be further micropatterned allowing co-existence of hierarchical structures at different lenght. The patterned hydrogels support the culture of induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) and promote their alignment. The cultured iPSC-CMs exhibit anisotropic synchronized contractions, indicating maturation and electrical interconnectivity. Moreover, the cultures express specific cardiac markers including, connexin-43 and sarcomeric-α-actinin, confirming enhanced cell-cell crosstalk, spontaneous contractility, and efficient transmission of electrical signals. Our results showcase the potential of short amphiphilic glycopeptides to mimic physical and biochemical cues that are essential for cardiomyocytes functionality and thus, these conjugates can be used in cardiac tissue engineering and regeneration.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214091"},"PeriodicalIF":5.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cátia Correia , Daniela Peixoto , Diana Soares da Costa , Rui L. Reis , Iva Pashkuleva , Natália M. Alves
{"title":"Development and in vitro assessment of injectable, adhesive, and self-healing chitosan-based hydrogels for treatment of spinal cord injury","authors":"Cátia Correia , Daniela Peixoto , Diana Soares da Costa , Rui L. Reis , Iva Pashkuleva , Natália M. Alves","doi":"10.1016/j.bioadv.2024.214090","DOIUrl":"10.1016/j.bioadv.2024.214090","url":null,"abstract":"<div><div>Injured spinal cords have a limited ability to regenerate because of the inhibitory environment formed <em>in situ</em> that affects neuronal regrow. Ensuring stable contact between the injuried nerves to support neural regeneration in the lesion microenvironment remains a significant challenge. To address this challenge, we have engineered a new injectable and adhesive hydrogel to treat spinal cord injuries. This hydrogel was produced by functionalizing chitosan with catechol groups and crosslinking it with different amounts of β-glycerophosphate to obtain adhesive hydrogels with tunable mechanical properties. The softest hydrogel (G' ~ 300 Pa) demonstrated strong adhesion to different biological soft tissues, including porcine skin (adhesion strength of 3.4 ± 0.9 kPa) and spinal cord, as well as injectability and self-healing abilities, making it ideal for a minimally invasive administration in difficult-to-reach areas. Additionally, this composition promoted the attachment, viability, proliferation, and the expression of neuronal marker β-III tubulin (Tuj-1) by the neuroblastoma SH-SY5Y cells. Moreover, SH-SY5Y cells cultured on the hydrogel modulated its mechanical properties (G' ~ 3500 Pa). In summary, we propose a material that is compatible with different therapies for soft tissue healing, including repairing injured nerve tissue.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214090"},"PeriodicalIF":5.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Cruz Bonafé Allende , Franco Ambrosioni , Federico N. Ruiz Moreno , Constanza Marin , Verónica L. Romero , Miriam B. Virgolini , Belkys A. Maletto , Alvaro F. Jimenez Kairuz , Cecilia I. Alvarez Igarzabal , Matías L. Picchio
{"title":"Pyrogallol-rich supramolecular hydrogels with enzyme-sensitive microdomains for controlled topical delivery of hydrophobic drugs","authors":"Juan Cruz Bonafé Allende , Franco Ambrosioni , Federico N. Ruiz Moreno , Constanza Marin , Verónica L. Romero , Miriam B. Virgolini , Belkys A. Maletto , Alvaro F. Jimenez Kairuz , Cecilia I. Alvarez Igarzabal , Matías L. Picchio","doi":"10.1016/j.bioadv.2024.214075","DOIUrl":"10.1016/j.bioadv.2024.214075","url":null,"abstract":"<div><div>Skin wound treatments require efficient and targeted delivery of therapeutic agents to promote fast tissue regeneration and prevent infections. Hydrogels are one of the most popular products in the wound care market, although their use as medicated wound dressings remains a massive challenge when hydrophobic drugs are needed due to the hydrophilic nature of these soft materials. In this study, we developed innovative, dynamic hydrogels based on polyvinyl alcohol (PVA), pyrogallol as a hydrogen bond crosslinker, and casein micelles as hydrophobic reservoirs of silver sulfadiazine (SSD) for enzyme-activated smart delivery at wound sites. The hydrogel formulation was optimized for mechanical strength, viscoelastic behavior, water absorption capacity, and drug-loading efficiency. <em>In vitro</em> drug delivery studies revealed a sustainable release profile of SSD for over 24 h from the micelles within the hydrogel network. Furthermore, biocompatibility evaluation using mouse fibroblast L929 cells demonstrated that the hydrogel did not inhibit cell viability, while <em>in vivo</em> experiments on <em>Caenorhabditis elegans</em> (<em>C. elegans</em>) proved its safety in complex organisms. This versatile hydrogel also has anti-inflammatory and antibacterial effects stemming from the therapeutic polyphenol, which could benefit the healing process. The combination of PVA, pyrogallol, and casein-based nanocarriers could offer an approach to wound healing, providing a new platform for hosting hydrophobic therapeutic substances. Overall, this hydrogel system shows great promise in wound care and could broaden the applications of this family of soft materials for treating various skin injuries.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"166 ","pages":"Article 214075"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142548831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huangliang Zheng , Jiaqi Li , Sharon Shui Yee Leung
{"title":"Inhalable polysorbates stabilized nintedanib nanocrystals to facilitate pulmonary nebulization and alveolar macrophage evasion","authors":"Huangliang Zheng , Jiaqi Li , Sharon Shui Yee Leung","doi":"10.1016/j.bioadv.2024.214084","DOIUrl":"10.1016/j.bioadv.2024.214084","url":null,"abstract":"<div><div>Pulmonary delivery of nintedanib has noticeable advantages over the current oral administration in managing idiopathic pulmonary fibrosis (IPF). However, it remains a challenge to construct an efficient lung delivery system for insoluble nintedanib to resist nebulization instabilities and alveolar macrophage clearance. Herein, we attempted to develop nintedanib as inhalable nanocrystals stabilized with polysorbates. Different types of polysorbates (polysorbate 20, 40, 60, 80) and various drug-surfactant molar ratios (DSR = 10, 30, 60) were screened to determine the optimal nintedanib nanocrystal formulation. Most formulations (except those stabilized by polysorbate 40) could tailor nintedanib nanocrystals with sizes around 600 nm, and the nebulization-caused drug loss could be significantly reduced when DSR increased to 60. Meanwhile, all nanocrystals boosted the <em>in vitro</em> drug dissolution rate and improved the aerosol performance of nintedanib. Although nebulization-caused particle aggregation was found in most formulations, the nanocrystal stabilized with polysorbate 80 at DSR 60 presented no apparent size change after nebulization. This formulation exhibited superior alveolar macrophage evasion, enhanced fibroblast cluster infiltration, and improved fibroblast cluster inhibition compared with other formulations, indicating its significant potential for pulmonary nintedanib delivery. Overall, this study explored the potential of polysorbates in stabilizing nintedanib nanocrystals for nebulization and proposed practical solutions to transfer nintedanib from oral to lung delivery.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"166 ","pages":"Article 214084"},"PeriodicalIF":5.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142548829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manjila Adhikari , Bianza Moise Bakadia , Li Wang , Ying Li , Zhijun Shi , Guang Yang
{"title":"Electricallymodified bacterial cellulose tailored with plant based green materials for infected wound healing applications","authors":"Manjila Adhikari , Bianza Moise Bakadia , Li Wang , Ying Li , Zhijun Shi , Guang Yang","doi":"10.1016/j.bioadv.2024.214087","DOIUrl":"10.1016/j.bioadv.2024.214087","url":null,"abstract":"<div><div>Effective treatment of infected wounds remains a challenge due to the rise of antibiotic-resistant microorganisms. The development of advanced materials with strong antimicrobial properties is necessary to address this issue. In this study, a unique composite of electrically modified bacterial cellulose (EBC) with allantoin (ABC) and zein was developed by dipping diffusion method. Morphological structural analysis revealed a uniform distribution of zein and aligned fibers, confirming the synthesis of the ABC-Zein composite. The formation of ABC-Zein was further confirmed by attenuated total reflection-Fourier transform infrared (ATR-FTIR), which displayed additional peaks corresponding to EBC, indicating the incorporation of zein into ABC. X-ray diffraction (XRD) analysis of ABC-Zein demonstrated a similar crystalline structure with EBC. The ABC-Zein showed mechanical integrity (tensile strength: 1.15 ± 0.21 MPa), thermal stability (degradation temperature: 290 °C), porous structure (porosity: 40.23 ± 0.21 %), and hydrophilic (water contact angle: 53.3 ± 5.3°) properties. Furthermore, the antimicrobial agent terpinen-4-ol (T4O), derived from tea tree oil, was incorporated into the ABC-Zein composite. Biological studies confirmed the antimicrobial efficacy (<em>Staphylococcus aureus</em> inhibition: 88.5 ± 7.19 %) and biocompatible (cell viability: 84.95 ± 5.6 %, hemolysis: 4.479 ± 0.39 %) nature of the T4O-ABC-Zein composite. The combined effects of the aligned fiber structure, zein protein, and antimicrobial T4O significantly enhanced infected wound healing by day 7, promoting inflammatory response, granular tissue formation, cell proliferation, and angiogenesis. By day 14, T4O-ABC-Zein facilitated complete wound healing, with reepithelization, collagen I deposition, and downregulation of CD 31, Ki67, and α-SMA. Overall, the innovative T4O-ABC-Zein composite, with an aligned fiber structure, improved biocompatibility, and antimicrobial properties, holds significant potential for the treatment of infected wounds.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"167 ","pages":"Article 214087"},"PeriodicalIF":5.5,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuhao Gao , Ning Wang , Yuanyuan Qi , Xiujuan Wang , Keyi Zhang , Yuxi Zhang , Yachen Cao , Tairan Zang , Ting Wang
{"title":"The aluminum nanoparticle-encircled SQ-in-water emulsions (ANSWE) as a vaccine adjuvant-delivery system (VADS) for developing robust mucosal subunit vaccines","authors":"Yuhao Gao , Ning Wang , Yuanyuan Qi , Xiujuan Wang , Keyi Zhang , Yuxi Zhang , Yachen Cao , Tairan Zang , Ting Wang","doi":"10.1016/j.bioadv.2024.214076","DOIUrl":"10.1016/j.bioadv.2024.214076","url":null,"abstract":"<div><div>The aluminum nanoparticle-encircled squalene (SQ)-in-water emulsions (ANSWE) were engineered as a VADS (vaccine adjuvant-delivery system) using a simple procedure for carrying antigens (Ag) to develop subunit vaccines. In vitro, due to possessing the synergistic adjuvanticity of both AN and SQ, ANSWE were efficiently taken up by APC (antigen-presenting cells) and triggered them to mature and make extra ROS (reactive oxygen species) and multiple cytokines, such as IL-12, IL-1β and IFN-β, which favor balanced Th1/Th2 immunoresponses. Within APC, ANSWE managed lysosome escape and consequently enhanced proteasome activities to facilitate Ag cross-presentation. Mice given twice ovalbumin-ANSWE via intrapulmonary vaccination (IPV) produced high levels of anti-Ag antibodies as well as cytotoxic T lymphocytes, which efficiently erased cells bearing cognate Ag. Thus, ANSWE as a potent VADS may be feasible for developing mucosal subunit vaccines that can elicit comprehensive immunity against infectious diseases, including especially the respiratory infections, and even aggressive cancers.</div></div>","PeriodicalId":51111,"journal":{"name":"Materials Science & Engineering C-Materials for Biological Applications","volume":"166 ","pages":"Article 214076"},"PeriodicalIF":5.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}