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Abdel-Rahman RM, Abdel-Mohsen AM, Frankova J, Piana F, Kalina L, Gajdosova V, Kapralkova L, Thottappali MA, Jancar J. Self-Assembled Hydrogel Membranes with Structurally Tunable Mechanical and Biological Properties. Biomacromolecules 2024. [PMID: 38739908 DOI: 10.1021/acs.biomac.4c00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Using supramolecular self-assembled nanocomposite materials made from protein and polysaccharide components is becoming more popular because of their unique properties, such as biodegradability, hierarchical structures, and tunable multifunctionality. However, the fabrication of these materials in a reproducible way remains a challenge. This study presents a new evaporation-induced self-assembly method producing layered hydrogel membranes (LHMs) using tropocollagen grafted by partially deacetylated chitin nanocrystals (CO-g-ChNCs). ChNCs help stabilize tropocollagen's helical conformation and fibrillar structure by forming a hierarchical microstructure through chemical and physical interactions. The LHMs show improved mechanical properties, cytocompatibility, and the ability to control drug release using octenidine dihydrochloride (OCT) as a drug model. Because of the high synergetic performance between CO and ChNCs, the modulus, strength, and toughness increased significantly compared to native CO. The biocompatibility of LHM was tested using the normal human dermal fibroblast (NHDF) and the human osteosarcoma cell line (Saos-2). Cytocompatibility and cell adhesion improved with the introduction of ChNCs. The extracted ChNCs are used as a reinforcing nanofiller to enhance the performance properties of tropocollagen hydrogel membranes and provide new insights into the design of novel LHMs that could be used for various medical applications, such as control of drug release in the skin and bone tissue regeneration.
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Affiliation(s)
- Rasha M Abdel-Rahman
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno 61200, Czech Republic
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
| | - A M Abdel-Mohsen
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno 61200, Czech Republic
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
- Pretreatment and Finishing of Cellulosic Based Textiles Department, Textile Industries Research Institute, National Research Centre, 33 EL Buhouth Street, Dokki, Giza 12622, Egypt
| | - Jana Frankova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská, 3, 775 15, Olomouc, Czech Republic
| | - Francesco Piana
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
| | - Lukas Kalina
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkyňova 464/118, Brno 61200, Czech Republic
| | - Veronika Gajdosova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
| | - Ludmila Kapralkova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
| | - Muhammed Arshad Thottappali
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, Praha 162 06, Czech Republic
| | - Josef Jancar
- CEITEC-Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno 61200, Czech Republic
- Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkyňova 464/118, Brno 61200, Czech Republic
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Huang LZY, Shaw ZL, Penman R, Cheeseman S, Truong VK, Higgins MJ, Caruso RA, Elbourne A. Cell Adhesion, Elasticity, and Rupture Forces Guide Microbial Cell Death on Nanostructured Antimicrobial Titanium Surfaces. ACS APPLIED BIO MATERIALS 2024; 7:344-361. [PMID: 38100088 DOI: 10.1021/acsabm.3c00943] [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] [Indexed: 01/16/2024]
Abstract
Naturally occurring and synthetic nanostructured surfaces have been widely reported to resist microbial colonization. The majority of these studies have shown that both bacterial and fungal cells are killed upon contact and subsequent surface adhesion to such surfaces. This occurs because the presence of high-aspect-ratio structures can initiate a self-driven mechanical rupture of microbial cells during the surface adsorption process. While this technology has received a large amount of scientific and medical interest, one important question still remains: what factors drive microbial death on the surface? In this work, the interplay between microbial-surface adhesion, cell elasticity, cell membrane rupture forces, and cell lysis at the microbial-nanostructure biointerface during adsorptive processes was assessed using a combination of live confocal laser scanning microscopy, scanning electron microscopy, in situ amplitude atomic force microscopy, and single-cell force spectroscopy. Specifically, the adsorptive behavior and nanomechanical properties of live Gram-negative (Pseudomonas aeruginosa) and Gram-positive (methicillin-resistant Staphylococcus aureus) bacterial cells, as well as the fungal species Candida albicans and Cryptococcus neoformans, were assessed on unmodified and nanostructured titanium surfaces. Unmodified titanium and titanium surfaces with nanostructures were used as model substrates for investigation. For all microbial species, cell elasticity, rupture force, maximum cell-surface adhesion force, the work of adhesion, and the cell-surface tether behavior were compared to the relative cell death observed for each surface examined. For cells with a lower elastic modulus, lower force to rupture through the cell, and higher work of adhesion, the surfaces had a higher antimicrobial activity, supporting the proposed biocidal mode of action for nanostructured surfaces. This study provides direct quantification of the differences observed in the efficacy of nanostructured antimicrobial surface as a function of microbial species indicating that a universal, antimicrobial surface architecture may be hard to achieve.
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Affiliation(s)
- Louisa Z Y Huang
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Z L Shaw
- School of Engineering, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Rowan Penman
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Samuel Cheeseman
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
- Graeme Clark Institute, Faculty of Engineering and Information Technology & Faculty of Medicine, Dentistry and Health Services, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Vi Khanh Truong
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia 5042, Australia
| | - Michael J Higgins
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Rachel A Caruso
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
| | - Aaron Elbourne
- Applied Chemistry and Environmental Science, School of Science, College of STEM, RMIT University, Melbourne, Victoria 3000, Australia
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Wang Z, Xu W, Gao Y, Zha M, Zhang D, Peng X, Zhang H, Wang C, Xu C, Zhou T, Liu D, Niu H, Liu Q, Chen Y, Zhu C, Guo T, Ying H. Engineering Saccharomyces cerevisiae for improved biofilm formation and ethanol production in continuous fermentation. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:119. [PMID: 37525255 PMCID: PMC10391976 DOI: 10.1186/s13068-023-02356-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/11/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Biofilm-immobilized continuous fermentation has the potential to enhance cellular environmental tolerance, maintain cell activity and improve production efficiency. RESULTS In this study, different biofilm-forming genes (FLO5, FLO8 and FLO10) were integrated into the genome of S. cerevisiae for overexpression, while FLO5 and FLO10 gave the best results. The biofilm formation of the engineered strains 1308-FLO5 and 1308-FLO10 was improved by 31.3% and 58.7% compared to that of the WT strain, respectively. The counts of cells adhering onto the biofilm carrier were increased. Compared to free-cell fermentation, the average ethanol production of 1308, 1308-FLO5 and 1308-FLO10 was increased by 17.4%, 20.8% and 19.1% in the biofilm-immobilized continuous fermentation, respectively. Due to good adhering ability, the fermentation broth turbidity of 1308-FLO5 and 1308-FLO10 was decreased by 22.3% and 59.1% in the biofilm-immobilized fermentation, respectively. Subsequently, for biofilm-immobilized fermentation coupled with membrane separation, the engineered strain significantly reduced the pollution of cells onto the membrane and the membrane separation flux was increased by 36.3%. CONCLUSIONS In conclusion, enhanced biofilm-forming capability of S. cerevisiae could offer multiple benefits in ethanol fermentation.
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Affiliation(s)
- Zhenyu Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Weikai Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yixuan Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Mingwei Zha
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Di Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiwei Peng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Huifang Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Cheng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Chenchen Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Tingqiu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Dong Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China.
| | - Huanqing Niu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Qingguo Liu
- Institute of Industrial Biotechnology, Jiangsu Industrial Technology Research Institute (JITRI), Nanjing, 210032, China
| | - Yong Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Chenjie Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Ting Guo
- Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Hanjie Ying
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
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Song DH, Song CW, Chung J, Jang EH, Kim H, Hur Y, Hur EM, Kim D, Chang JB. In situ silver nanoparticle development for molecular-specific biological imaging via highly accessible microscopies. NANOSCALE ADVANCES 2023; 5:1636-1650. [PMID: 36926569 PMCID: PMC10012848 DOI: 10.1039/d2na00449f] [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: 07/13/2022] [Accepted: 12/19/2022] [Indexed: 06/18/2023]
Abstract
In biological studies and diagnoses, brightfield (BF), fluorescence, and electron microscopy (EM) are used to image biomolecules inside cells. When compared, their relative advantages and disadvantages are obvious. BF microscopy is the most accessible of the three, but its resolution is limited to a few microns. EM provides a nanoscale resolution, but sample preparation is time-consuming. In this study, we present a new imaging technique, which we termed decoration microscopy (DecoM), and quantitative investigations to address the aforementioned issues in EM and BF microscopy. For molecular-specific EM imaging, DecoM labels proteins inside cells using antibodies bearing 1.4 nm gold nanoparticles (AuNPs) and grows silver layers on the AuNPs' surfaces. The cells are then dried without buffer exchange and imaged using scanning electron microscopy (SEM). Structures labeled with silver-grown AuNPs are clearly visible on SEM, even they are covered with lipid membranes. Using stochastic optical reconstruction microscopy, we show that the drying process causes negligible distortion of structures and that less structural deformation could be achieved through simple buffer exchange to hexamethyldisilazane. Using DecoM, we visualize the nanoscale alterations in microtubules by microtubule-severing proteins that cannot be observed with diffraction-limited fluorescence microscopy. We then combine DecoM with expansion microscopy to enable sub-micron resolution BF microscopy imaging. We first show that silver-grown AuNPs strongly absorb white light, and the structures labeled with them are clearly visible on BF microscopy. We then show that the application of AuNPs and silver development must follow expansion to visualize the labeled proteins clearly with sub-micron resolution.
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Affiliation(s)
- Dae-Hyeon Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology Daejeon Korea
| | - Chang Woo Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology Daejeon Korea
| | | | - Eun-Hae Jang
- Laboratory of Neuroscience, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University Seoul Korea
| | - Hyunwoo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology Daejeon Korea
| | - Yongsuk Hur
- BioMedical Research Center, Korea Advanced Institute of Science and Technology Daejeon Korea
| | - Eun-Mi Hur
- Laboratory of Neuroscience, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University Seoul Korea
- BK21 Four Future Veterinary Medicine Leading Education & Research Center, Seoul National University Seoul Korea
| | - Doory Kim
- Department of Chemistry, Hanyang University Seoul Korea
| | - Jae-Byum Chang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology Daejeon Korea
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Gunawan R, Yang M, Lau C. X-RAY MEASUREMENT OF INTRACELLULAR CHLORIDE AND OTHER IONS IN MAMMALIAN CELLS. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2023.100189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Ramesh P, Moskwa N, Hanchon Z, Koplas A, Nelson DA, Mills KL, Castracane J, Larsen M, Sharfstein ST, Xie Y. Engineering cryoelectrospun elastin-alginate scaffolds to serve as stromal extracellular matrices. Biofabrication 2022; 14:10.1088/1758-5090/ac6b34. [PMID: 35481854 PMCID: PMC9973022 DOI: 10.1088/1758-5090/ac6b34] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/26/2022] [Indexed: 11/12/2022]
Abstract
Scaffold-based regenerative strategies that emulate physical, biochemical, and mechanical properties of the native extracellular matrix (ECM) of the region of interest can influence cell growth and function. Existing ECM-mimicking scaffolds, including nanofiber (NF) mats, sponges, hydrogels, and NF-hydrogel composites are unable to simultaneously mimic typical composition, topography, pore size, porosity, and viscoelastic properties of healthy soft-tissue ECM. In this work, we used cryoelectrospinning to fabricate 3D porous scaffolds with minimal fibrous backbone, pore size and mechanical properties similar to soft-tissue connective tissue ECM. We used salivary glands as our soft tissue model and found the decellularized adult salivary gland (DSG) matrix to have a fibrous backbone, 10-30μm pores, 120 Pa indentation modulus, and ∼200 s relaxation half time. We used elastin and alginate as natural, compliant biomaterials and water as the solvent for cryoelectrospinning scaffolds to mimic the structure and viscoelasticity of the connective tissue ECM of the DSG. Process parameters were optimized to produce scaffolds with desirable topography and compliance similar to DSG, with a high yield of >100 scaffolds/run. Using water as solvent, rather than organic solvents, was critical to generate biocompatible scaffolds with desirable topography; further, it permitted a green chemistry fabrication process. Here, we demonstrate that cryoelectrospun scaffolds (CESs) support penetration of NIH 3T3 fibroblasts 250-450µm into the scaffold, cell survival, and maintenance of a stromal cell phenotype. Thus, we demonstrate that elastin-alginate CESs mimic many structural and functional properties of ECM and have potential for future use in regenerative medicine applications.
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Affiliation(s)
- Pujhitha Ramesh
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA
| | - Nicholas Moskwa
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, New York 12222, USA
| | - Zachary Hanchon
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA
| | - Adam Koplas
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA
| | - Deirdre A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, New York 12222, USA
| | - Kristen L. Mills
- Department of Mechanical, Aerospace, and Nuclear Engineering (MANE), Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York, 12180, USA
| | - James Castracane
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA
| | - Melinda Larsen
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA,Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, New York 12222, USA
| | - Susan T. Sharfstein
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA,Corresponding Authors: Yubing Xie, Ph.D., Professor of Nanobioscience, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA, , Susan Sharfstein, Ph.D., Professor of Nanobioscience, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA,
| | - Yubing Xie
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA,Corresponding Authors: Yubing Xie, Ph.D., Professor of Nanobioscience, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA, , Susan Sharfstein, Ph.D., Professor of Nanobioscience, College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, USA,
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