ACS Applied Bio Materials最新文献

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Magnetically Induced Thermal Effects on Tobacco Mosaic Virus-Based Nanocomposites for a Programmed Disassembly of Protein Cages.
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-27 DOI: 10.1021/acsabm.4c00634
Ecem Tiryaki, Carla Álvarez-Leirós, Julia N Majcherkiewicz, Paul L Chariou, Melodie Maceira-Campos, Gustavo Bodelón, Nicole F Steinmetz, Verónica Salgueiriño
{"title":"Magnetically Induced Thermal Effects on Tobacco Mosaic Virus-Based Nanocomposites for a Programmed Disassembly of Protein Cages.","authors":"Ecem Tiryaki, Carla Álvarez-Leirós, Julia N Majcherkiewicz, Paul L Chariou, Melodie Maceira-Campos, Gustavo Bodelón, Nicole F Steinmetz, Verónica Salgueiriño","doi":"10.1021/acsabm.4c00634","DOIUrl":"https://doi.org/10.1021/acsabm.4c00634","url":null,"abstract":"<p><p>Protein cages are promising tools for the controlled delivery of therapeutics and imaging agents when endowed with programmable disassembly strategies. Here, we produced hybrid nanocomposites made of tobacco mosaic virus (TMV) and magnetic iron oxide nanoparticles (IONPs), designed to disrupt the viral protein cages using magnetically induced release of heat. We studied the effects of this magnetic hyperthermia on the programmable viral protein capsid disassembly using (1) elongated nanocomposites of TMV coated heterogeneously with magnetic iron oxide nanoparticles (TMV@IONPs) and (2) spherical nanocomposites of polystyrene (PS) on which we deposited presynthesized IONPs and TMV via layer-by-layer self-assembly (PS@IONPs/TMV). Notably, we found that the extent of the disassembly of the protein cages is contingent upon the specific absorption rate (SAR) of the magnetic nanoparticles, that is, the heating efficiency, and the relative position of the protein cage within the nanocomposite concerning the heating sources. This implies that the spatial arrangement of components within the hybrid nanostructure has a significant impact on the disassembly process. Understanding and optimizing this relationship will contribute to the critical spatiotemporal control for targeted drug and gene delivery using protein cages.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to "Two-Photon Nanoparticle Probe for Formaldehyde Detection via the AILE Luminescence Mechanism".
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-27 DOI: 10.1021/acsabm.4c00783
Lincao Li, Shuo Zhu, Jieyu Chen, Shouhui Huang, Dong Liu, Haiyan Sun, Xinlong Pang, Zijun OuYang
{"title":"Correction to \"Two-Photon Nanoparticle Probe for Formaldehyde Detection via the AILE Luminescence Mechanism\".","authors":"Lincao Li, Shuo Zhu, Jieyu Chen, Shouhui Huang, Dong Liu, Haiyan Sun, Xinlong Pang, Zijun OuYang","doi":"10.1021/acsabm.4c00783","DOIUrl":"https://doi.org/10.1021/acsabm.4c00783","url":null,"abstract":"","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Physiochemical, In Vitro, and In Vivo Comparative Analysis of Verteporfin-Lipid Conjugate Formulations: Solid Lipid Nanoparticles and Liposomes.
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-27 DOI: 10.1021/acsabm.4c00316
Nimit Shah, Siddharth Reddy Soma, Maxwell Bortei Quaye, Doha Mahmoud, Sarah Ahmed, Ashritha Malkoochi, Girgis Obaid
{"title":"A Physiochemical, <i>In Vitro,</i> and <i>In Vivo</i> Comparative Analysis of Verteporfin-Lipid Conjugate Formulations: Solid Lipid Nanoparticles and Liposomes.","authors":"Nimit Shah, Siddharth Reddy Soma, Maxwell Bortei Quaye, Doha Mahmoud, Sarah Ahmed, Ashritha Malkoochi, Girgis Obaid","doi":"10.1021/acsabm.4c00316","DOIUrl":"https://doi.org/10.1021/acsabm.4c00316","url":null,"abstract":"<p><p>Visudyne<sup>Ⓡ</sup>, a liposomal formulation of verteporfin (benzoporphyrin derivative; BPD), is the only nanomedicine approved to date for photodynamic therapy (PDT). We have previously demonstrated that BPD conjugated to the lysophospholipid 1-arachidoyl-2-hydroxy-<i>sn</i>-glycero-3-phosphocholine (BPD-PC) exhibits the greatest physical stability in liposomes, while maintaining cancer cell phototoxicity, from a panel of BPD lipid conjugates evaluated. In this study, we prepared 1,2-dipalmitoyl-<i>sn</i>-glycero-3-phosphocholine (DPPC)-based solid lipid nanoparticles (LNPs) that stably entrap BPD-PC, which resemble the composition of the Spikevax<sup>Ⓡ</sup> Moderna COVID-19 vaccine, and compared them to a DPPC based liposomal formulation (<b>Lipo BPD-PC</b>). We evaluated the photochemical, optical, and phototherapeutic properties of both formulations. We also investigated the <i>in vivo</i> distribution and tumor microdistribution of both formulations. Our results demonstrated that <b>Lipo BPD-PC</b> is able to generate 17% more singlet oxygen than <b>LNP BPD-PC</b>, while interestingly, <b>LNP BPD-PC</b> is able to produce 76% more hydroxyl radicals and/or peroxynitrite anion. Importantly, only 28% of BPD-PC leaches out of the <b>LNP BPD-PC</b> formulation during 7 days of incubation in serum at 37 °C, while 100% of BPD-PC leaches out of the <b>Lipo BPD-PC</b> formulation under the same conditions. Despite these differences, there was no significant difference in cellular uptake of BPD-PC or phototoxicity in CT1BA5 murine pancreatic cancer cells (derived from a genetically engineered mouse model). Interestingly, PDT using <b>LNP BPD-PC</b> was more efficient at inducing immunogenic cell death (calreticulin membrane translocation) than <b>Lipo BPD-PC</b> when using IC<sub>25</sub> and IC<sub>50</sub> PDT doses. <i>In vivo</i> studies revealed that CT1BA5 tumor fluorescence signals from BPD-PC were 2.41-fold higher with <b>Lipo BPD-PC</b> than with <b>LNP BPD-PC</b>; however, no significant difference was observed in tumor tissue selectivity or tumor penetration. As such, we present <b>LNP BPD-PC</b> as a unique and more stable nanoplatform to carry BPD lipid conjugates, such as BPD-PC, with a potential for future photodynamic immune priming studies and multiagent drug delivery.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genetically Programmed Temperature-Responsive Barnacle-Derived Protein with an Enhanced Adhesion Ability.
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-26 DOI: 10.1021/acsabm.4c00455
Yuanxing Shi, Yun Xu, Longyu Zhang, Yunjun Yan, Jinyong Yan
{"title":"Genetically Programmed Temperature-Responsive Barnacle-Derived Protein with an Enhanced Adhesion Ability.","authors":"Yuanxing Shi, Yun Xu, Longyu Zhang, Yunjun Yan, Jinyong Yan","doi":"10.1021/acsabm.4c00455","DOIUrl":"https://doi.org/10.1021/acsabm.4c00455","url":null,"abstract":"<p><p>There is an emerging strong demand for smart environmentally responsive protein-based biomaterials with improved adhesion properties, especially underwater adhesion for potential environmental and medical applications. Based on the fusion of elastin-like polypeptides (ELPs), SpyCatcher and SpyTag modules, biosynthetic barnacle-derived protein was genetically engineered and self-assembled with an enhanced adhesion ability and temperature response. The water resistance ability of the synthetic protein biopolymer with a network structure increased to 98.8 from 58.5% of the original Cp19k, and the nonaqueous adhesion strength enhanced to 1.26 from 0.68 MPa of Cp19k. The biopolymer showed an improved adhesion ability toward hydrophilic and hydrophobic surfaces as well as diatomite powders. The combination of functional module ELPs and SpyTag/SpyCatcher could endow the biosynthetic protein with temperature response, an insoluble form above 42 °C and a soluble form at 4 °C. The combinational advantages including temperature response and adhesion performance make the self-assembled protein an excellent candidate in surgical adhesion, underwater repair, and surface modification of various coatings. Distinct from the traditional approach of utilizing solely ELPs, the integration of short ELPs with Spy partners exhibited a synergistic enhancement in the temperature response. The synergistic effects of two functional modules provide a technical method and insight for designing smart self-assembled protein-based biopolymers.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gold-Hydrogel Nanocomposites for High-Resolution Laser-Based 3D Printing of Scaffolds with SERS-Sensing Properties.
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-26 DOI: 10.1021/acsabm.4c00379
Isabel Ventisette, Francesco Mattii, Caterina Dallari, Claudia Capitini, Martino Calamai, Beatrice Muzzi, Francesco S Pavone, Federico Carpi, Caterina Credi
{"title":"Gold-Hydrogel Nanocomposites for High-Resolution Laser-Based 3D Printing of Scaffolds with SERS-Sensing Properties.","authors":"Isabel Ventisette, Francesco Mattii, Caterina Dallari, Claudia Capitini, Martino Calamai, Beatrice Muzzi, Francesco S Pavone, Federico Carpi, Caterina Credi","doi":"10.1021/acsabm.4c00379","DOIUrl":"https://doi.org/10.1021/acsabm.4c00379","url":null,"abstract":"<p><p>Although visible light-based stereolithography (SLA) represents an affordable technology for the rapid prototyping of 3D scaffolds for in vitro support of cells, its potential could be limited by the lack of functional photocurable biomaterials that can be SLA-structured at micrometric resolution. Even if innovative photocomposites showing biomimetic, bioactive, or biosensing properties have been engineered by loading inorganic particles into photopolymer matrices, main examples rely on UV-assisted extrusion-based low-resolution processes. Here, SLA-printable composites were obtained by mixing a polyethylene glycol diacrylate (PEGDA) hydrogel with multibranched gold nanoparticles (NPs). NPs were engineered to copolymerize with the PEGDA matrix by implementing a functionalization protocol involving covalent grafting of allylamine molecules that have C═C pendant moieties. The formulations of gold nanocomposites were tailored to achieve high-resolution fast prototyping of composite scaffolds via visible light-based SLA. Furthermore, it was demonstrated that, after mixing with a polymer and after laser structuring, gold NPs still retained their unique plasmonic properties and could be exploited for optical detection of analytes through surface-enhanced Raman spectroscopy (SERS). As a proof of concept, SERS-sensing performances of 3D printed plasmonic scaffolds were successfully demonstrated with a Raman probe molecule (e.g., 4-mercaptobenzoic acid) from the perspective of future extensions to real-time sensing of cell-specific markers released within cultures. Finally, biocompatibility tests preliminarily demonstrated that embedded NPs also played a key role by inducing physiological cell-cytoskeleton rearrangements, further confirming the potentialities of such hybrid nanocomposites as groundbreaking materials in laser-based bioprinting.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design Principles for Immunomodulatory Biomaterials. 免疫调节生物材料的设计原则
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-26 DOI: 10.1021/acsabm.4c00537
Samuel Abidemi Oluwole, Welday Desta Weldu, Keerthana Jayaraman, Kelsie Amanda Barnard, Christian Agatemor
{"title":"Design Principles for Immunomodulatory Biomaterials.","authors":"Samuel Abidemi Oluwole, Welday Desta Weldu, Keerthana Jayaraman, Kelsie Amanda Barnard, Christian Agatemor","doi":"10.1021/acsabm.4c00537","DOIUrl":"https://doi.org/10.1021/acsabm.4c00537","url":null,"abstract":"<p><p>The immune system is imperative to the survival of all biological organisms. A functional immune system protects the organism by detecting and eliminating foreign and host aberrant molecules. Conversely, a dysfunctional immune system characterized by an overactive or weakened immune system causes life-threatening autoimmune or immunodeficiency diseases. Therefore, a critical need exists to develop technologies that regulate the immune system to ensure homeostasis or treat several diseases. Accumulating evidence shows that biomaterials─artificial materials (polymers, metals, ceramics, or engineered cells and tissues) that interact with biological systems─can trigger immune responses, offering a materials science-based strategy to modulate the immune system. This Review discusses the expanding frontiers of biomaterial-based immunomodulation, focusing on principles for designing these materials. This Review also presents examples of immunomodulatory biomaterials, which include polymers and metal- and carbon-based nanomaterials, capable of regulating the innate and adaptive immune systems.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Compact Differential Dynamic Microscopy-based Device (cDDM): An Approach Tool for Early Detection of Hypercoagulable State in Transfusion-Dependent-β-Thalassemia Patients. 基于差分动态显微镜的紧凑型设备(cDDM):用于早期检测输血依赖型β-地中海贫血患者高凝状态的方法工具。
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-26 DOI: 10.1021/acsabm.4c00516
Touchwin Petiwathayakorn, Narisara Paradee, Sasinee Hantrakool, Ungkarn Jarujareet, Thanapong Intharah, Somdet Srichairatanakool, Pimpisid Koonyosying
{"title":"A Compact Differential Dynamic Microscopy-based Device (cDDM): An Approach Tool for Early Detection of Hypercoagulable State in Transfusion-Dependent-β-Thalassemia Patients.","authors":"Touchwin Petiwathayakorn, Narisara Paradee, Sasinee Hantrakool, Ungkarn Jarujareet, Thanapong Intharah, Somdet Srichairatanakool, Pimpisid Koonyosying","doi":"10.1021/acsabm.4c00516","DOIUrl":"https://doi.org/10.1021/acsabm.4c00516","url":null,"abstract":"<p><p>β-Thalassemia especially transfusion-dependent thalassemia (TDT) associates with a hypercoagulable state, which is the main cause of thromboembolic events (TEE). Plasma viscosity and rheological parameters could be essential markers for determining hypercoagulable state in β-thalassemia patients. The traditional methods for measuring viscosity are often limited by large sample volumes and are impractical for routine clinical monitoring. The compact differential dynamic microscopy-based device (cDDM), an optical microscopy for quantitative rheological assessment, was developed and applied for prognosis of the hypercoagulable state in β-TDT with and without splenectomy. The device was performed plasma viscosity measurement using low plasma volume (8 μL) and revealed a value as modulus of complex viscosity |η(ω)| in 7 min. We also parallelly demonstrated the correlation of the viscosity and related-coagulable parameters: complete blood count, prothrombin time (PT), activated partial thromboplastin time (APTT), protein C (PC), protein S (PS), CD62P and CD63 expression, and platelet aggregation test. The thalassemia plasma exhibited a higher value of |η(ω)| than healthy plasma, which can represent a different viscoelastic property among the groups. Even all related-coagulable parameters indicated hypercoagulable state in both nonsplenectomies and splenectomies β-TDT patients when compared to control, only high platelet numbers significantly correlated to high plasma viscosity in the splenectomy group. However, the other coagulable parameters have shown a trend of positive relationship with high plasma viscosity in all β-1thalassemia TDT patients. The relative results suggested that our device would be an approach tool for early detection of hypercoagulable state in transfusion-dependent-β-thalassemia patients, which can help to prevent TEE and the critical consequent-complications.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Glucose Oxidase-Curcumin Composite Nanoreactor for Multimodal Synergistic Cancer Therapy. 用于癌症多模式协同治疗的葡萄糖氧化酶-姜黄素复合纳米反应器
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-26 DOI: 10.1021/acsabm.4c00479
Rama Alsamarat, Suhair Sunoqrot
{"title":"A Glucose Oxidase-Curcumin Composite Nanoreactor for Multimodal Synergistic Cancer Therapy.","authors":"Rama Alsamarat, Suhair Sunoqrot","doi":"10.1021/acsabm.4c00479","DOIUrl":"https://doi.org/10.1021/acsabm.4c00479","url":null,"abstract":"<p><p>Glucose oxidase (GOx) selectively oxidizes β-d-glucose into gluconic acid and hydrogen peroxide; thus, it has emerged as a promising anticancer agent by tumor starvation and oxidative therapy. Here, we developed a nanoscale platform or \"nanoreactor\" that incorporates GOx and the bioactive natural product curcumin (CUR) to achieve a multimodal anticancer nanocomposite. The composite nanoreactor was formed by loading CUR in biodegradable polymeric nanoparticles (NPs) of poly(ethylene glycol)-<i>b</i>-poly(ε-caprolactone) (PEG-PCL). Prime-coating of the NPs with an iron(III)-tannic acid complex enabled facile immobilization of GOx on the NP surface. The NPs were monodisperse with a hydrodynamic diameter of 122 nm and a partially negative surface charge. The NPs were also associated with an excellent CUR loading efficiency and sustained release up to 96 h, which was accelerated by surface-immobilized GOx and followed supercase II transport. Viability assays were conducted on two model cancer cell lines, MCF-7 and MDA-MB-231 cells, as well as human dermal fibroblasts as a representative normal cell line. The assays revealed significantly improved potency of CUR in the composite nanoreactor, with up to 6000- and 1280-fold increase in MCF-7 and MDA-MB-231 cells, respectively, and lower toxicity toward normal cells. The NPs were also able to promote intracellular reactive oxygen species (ROS) generation and dissipation of the mitochondrial membrane potential, providing important clues on the mechanism of action of the nanoreactor. Further investigation of caspase-3 activity revealed that the nanoreactor had no effect or inhibited caspase-3 levels, signifying a caspase-independent mechanism of inducing apoptosis. Our findings present a promising nanocarrier platform that combines therapeutic agents with distinct mechanisms of action acting in synergy for more effective cancer therapy.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Manganese Metalloenzymes with Laccase-like Activity: Design, Synthesis, and Characterization. 具有类似漆酶活性的人工锰金属酶:设计、合成和表征。
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-25 DOI: 10.1021/acsabm.4c00571
Carla Garcia-Sanz, Alicia Andreu, Mirosława Pawlyta, Ana Vukoičić, Ana Milivojević, Blanca de Las Rivas, Dejan Bezbradica, Jose M Palomo
{"title":"Artificial Manganese Metalloenzymes with Laccase-like Activity: Design, Synthesis, and Characterization.","authors":"Carla Garcia-Sanz, Alicia Andreu, Mirosława Pawlyta, Ana Vukoičić, Ana Milivojević, Blanca de Las Rivas, Dejan Bezbradica, Jose M Palomo","doi":"10.1021/acsabm.4c00571","DOIUrl":"https://doi.org/10.1021/acsabm.4c00571","url":null,"abstract":"<p><p>Laccase is an oxidase of great industrial interest due to its ability to catalyze oxidation processes of phenols and persistent organic pollutants. However, it is susceptible to denaturation at high temperatures, sensitive to pH, and unstable in the presence of high concentrations of solvents, which is a issue for industrial use. To solve this problem, this work develops the synthesis in an aqueous medium of a new Mn metalloenzyme with laccase oxidase mimetic catalytic activity. <i>Geobacillus thermocatenulatus</i> lipase (GTL) was used as a scaffold enzyme, mixed with a manganese salt at 50 °C in an aqueous medium. This leads to the in situ formation of manganese(IV) oxide nanowires that interact with the enzyme, yielding a GTL-Mn bionanohybrid. On the other hand, its oxidative activity was evaluated using the ABTS assay, obtaining a catalytic efficiency 300 times higher than that of <i>Trametes versicolor</i> laccase. This new Mn metalloenzyme was 2 times more stable at 40 °C, 3 times more stable in the presence of 10% acetonitrile, and 10 times more stable in 20% acetonitrile than Novozym 51003 laccase. Furthermore, the site-selective immobilized GTL-Mn showed a much higher stability than the soluble form. The oxidase-like activity of this Mn metalloenzyme was successfully demonstrated against other substrates, such as l-DOPA or phloridzin, in oligomerization reactions.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141445452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stimuli-Responsive Codelivery System-Embedded Polymeric Nanofibers with Synergistic Effects of Growth Factors and Low-Intensity Pulsed Ultrasound to Enhance Osteogenesis Properties. 内嵌聚合物纳米纤维的刺激响应型 Codelivery 系统具有生长因子和低强度脉冲超声的协同效应,可增强骨生成特性。
IF 4.6
ACS Applied Bio Materials Pub Date : 2024-06-25 DOI: 10.1021/acsabm.4c00111
Samira Malekmohammadi, Rashid Jamshidi, Joanna M Sadowska, Chen Meng, Chamil Abeykoon, Mohsen Akbari, R Hugh Gong
{"title":"Stimuli-Responsive Codelivery System-Embedded Polymeric Nanofibers with Synergistic Effects of Growth Factors and Low-Intensity Pulsed Ultrasound to Enhance Osteogenesis Properties.","authors":"Samira Malekmohammadi, Rashid Jamshidi, Joanna M Sadowska, Chen Meng, Chamil Abeykoon, Mohsen Akbari, R Hugh Gong","doi":"10.1021/acsabm.4c00111","DOIUrl":"https://doi.org/10.1021/acsabm.4c00111","url":null,"abstract":"<p><p>The present work aims to develop optimized scaffolds for bone repair by incorporating mesoporous nanoparticles into them, thereby combining bioactive factors for cell growth and preventing rapid release or loss of effectiveness. We synthesized biocompatible and biodegradable scaffolds designed for the controlled codelivery of curcumin (CUR) and recombinant human bone morphogenic protein-2 (rhBMP-2). Active agents in dendritic silica/titania mesoporous nanoparticles (DSTNs) were incorporated at different weight percentages (0, 2, 5, 7, 9, and 10 wt %) into a matrix of polycaprolactone (PCL) and polyethylene glycol (PEG) nanofibers, forming the CUR-BMP-2@DSTNs/PCL-PEG delivery system (S0, S2, S5, S7, S9, and S10, respectively, with the number showing the weight percentage). To enhance the formation process, the system was treated using low-intensity pulsed ultrasound (LIPUS). Different advanced methods were employed to assess the physical, chemical, and mechanical characteristics of the fabricated scaffolds, all confirming that incorporating the nanoparticles improves their mechanical and structural properties. Their hydrophilicity increased by approximately 25%, leading to ca. 53% enhancement in their water absorption capacity. Furthermore, we observed a sustained release of approximately 97% for CUR and 70% for BMP-2 for the S7 (scaffold with 7 wt % DSTNs) over 28 days, which was further enhanced using ultrasound. In vitro studies demonstrated accelerated scaffold biodegradation, with the highest level observed in S7 scaffolds, approximately three times higher than the control group. Moreover, the cell viability and proliferation on DSTNs-containing scaffolds increased when compared to the control group. Overall, our study presents a promising nanocomposite scaffold design with notable improvements in structural, mechanical, and biological properties compared to the control group, along with controlled and sustained drug release capabilities. This makes the scaffold a compelling candidate for advanced bone tissue engineering and regenerative therapies.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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