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Ghorbaninejad M, Asadzadeh-Aghdaei H, Baharvand H, Meyfour A. Intestinal organoids: A versatile platform for modeling gastrointestinal diseases and monitoring epigenetic alterations. Life Sci 2023; 319:121506. [PMID: 36858311 DOI: 10.1016/j.lfs.2023.121506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/13/2023] [Indexed: 03/03/2023]
Abstract
Considering the significant limitations of conventional 2D cell cultures and tissue in vitro models, creating intestinal organoids has burgeoned as an ideal option to recapitulate the heterogeneity of the native intestinal epithelium. Intestinal organoids can be developed from either tissue-resident adult stem cells (ADSs) or pluripotent stem cells (PSCs) in both forms induced PSCs and embryonic stem cells. Here, we review current advances in the development of intestinal organoids that have led to a better recapitulation of the complexity, physiology, morphology, function, and microenvironment of the intestine. We discuss current applications of intestinal organoids with an emphasis on disease modeling. In particular, we point out recent studies on SARS-CoV-2 infection in human intestinal organoids. We also discuss the less explored application of intestinal organoids in epigenetics by highlighting the role of epigenetic modifications in intestinal development, homeostasis, and diseases, and subsequently the power of organoids in mirroring the regulatory role of epigenetic mechanisms in these conditions and introducing novel predictive/diagnostic biomarkers. Finally, we propose 3D organoid models to evaluate the effects of novel epigenetic drugs (epi-drugs) on the treatment of GI diseases where epigenetic mechanisms play a key role in disease development and progression, particularly in colorectal cancer treatment and epigenetically acquired drug resistance.
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Affiliation(s)
- Mahsa Ghorbaninejad
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh-Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Baharvand
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Anna Meyfour
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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2
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Shakeri A, Khan S, Jarad NA, Didar TF. The Fabrication and Bonding of Thermoplastic Microfluidics: A Review. Materials (Basel) 2022; 15:ma15186478. [PMID: 36143790 PMCID: PMC9503322 DOI: 10.3390/ma15186478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/02/2022] [Accepted: 09/14/2022] [Indexed: 05/27/2023]
Abstract
Various fields within biomedical engineering have been afforded rapid scientific advancement through the incorporation of microfluidics. As literature surrounding biological systems become more comprehensive and many microfluidic platforms show potential for commercialization, the development of representative fluidic systems has become more intricate. This has brought increased scrutiny of the material properties of microfluidic substrates. Thermoplastics have been highlighted as a promising material, given their material adaptability and commercial compatibility. This review provides a comprehensive discussion surrounding recent developments pertaining to thermoplastic microfluidic device fabrication. Existing and emerging approaches related to both microchannel fabrication and device assembly are highlighted, with consideration toward how specific approaches induce physical and/or chemical properties that are optimally suited for relevant real-world applications.
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Affiliation(s)
- Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Shadman Khan
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Noor Abu Jarad
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Tohid F. Didar
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
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3
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Khan S, Burciu B, Filipe CDM, Li Y, Dellinger K, Didar TF. DNAzyme-Based Biosensors: Immobilization Strategies, Applications, and Future Prospective. ACS Nano 2021; 15:13943-13969. [PMID: 34524790 DOI: 10.1021/acsnano.1c04327] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Since their discovery almost three decades ago, DNAzymes have been used extensively in biosensing. Depending on the type of DNAzyme being used, these functional oligonucleotides can act as molecular recognition elements within biosensors, offering high specificity to their target analyte, or as reporters capable of transducing a detectable signal. Several parameters need to be considered when designing a DNAzyme-based biosensor. In particular, given that many of these biosensors immobilize DNAzymes onto a sensing surface, selecting an appropriate immobilization strategy is vital. Suboptimal immobilization can result in both DNAzyme detachment and poor accessibility toward the target, leading to low sensing accuracy and sensitivity. Various approaches have been employed for DNAzyme immobilization within biosensors, ranging from amine and thiol-based covalent attachment to non-covalent strategies involving biotin-streptavidin interactions, DNA hybridization, electrostatic interactions, and physical entrapment. While the properties of each strategy inform its applicability within a proposed sensor, the selection of an appropriate strategy is largely dependent on the desired application. This is especially true given the diverse use of DNAzyme-based biosensors for the detection of pathogens, metal ions, and clinical biomarkers. In an effort to make the development of such sensors easier to navigate, this paper provides a comprehensive review of existing immobilization strategies, with a focus on their respective advantages, drawbacks, and optimal conditions for use. Next, common applications of existing DNAzyme-based biosensors are discussed. Last, emerging and future trends in the development of DNAzyme-based biosensors are discussed, and gaps in existing research worthy of exploration are identified.
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Affiliation(s)
- Shadman Khan
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Brenda Burciu
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, 2907 East Gate City Boulevard, Greensboro, North Carolina 27401, United States
| | - Carlos D M Filipe
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Yingfu Li
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
| | - Kristen Dellinger
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, 2907 East Gate City Boulevard, Greensboro, North Carolina 27401, United States
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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4
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Shakeri A, Khan S, Didar TF. Conventional and emerging strategies for the fabrication and functionalization of PDMS-based microfluidic devices. Lab Chip 2021; 21:3053-3075. [PMID: 34286800 DOI: 10.1039/d1lc00288k] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Microfluidics is an emerging and multidisciplinary field that is of great interest to manufacturers in medicine, biotechnology, and chemistry, as it provides unique tools for the development of point-of-care diagnostics, organs-on-chip systems, and biosensors. Polymeric microfluidics, unlike glass and silicon, offer several advantages such as low-cost mass manufacturing and a wide range of beneficial material properties, which make them the material of choice for commercial applications and high-throughput systems. Among polymers used for the fabrication of microfluidic devices, polydimethylsiloxane (PDMS) still remains the most widely used material in academia due to its advantageous properties, such as excellent transparency and biocompatibility. However, commercialization of PDMS has been a challenge mostly due to the high cost of the current fabrication strategies. Moreover, specific surface modification and functionalization steps are required to tailor the surface chemistry of PDMS channels (e.g. biomolecule immobilization, surface hydrophobicity and antifouling properties) with respect to the desired application. While significant research has been reported in the field of PDMS microfluidics, functionalization of PDMS surfaces remains a critical step in the fabrication process that is difficult to navigate. This review first offers a thorough illustration of existing fabrication methods for PDMS-based microfluidic devices, providing several recent advancements in this field with the aim of reducing the cost and time for mass production of these devices. Next, various conventional and emerging approaches for engineering the surface chemistry of PDMS are discussed in detail. We provide a wide range of functionalization techniques rendering PDMS microchannels highly biocompatible for physical or covalent immobilization of various biological entities while preventing non-specific interactions.
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Affiliation(s)
- Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
| | - Shadman Khan
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
| | - Tohid F Didar
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada
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Kasapgil E, Badv M, Cantú CA, Rahmani S, Erbil HY, Anac Sakir I, Weitz JI, Hosseini-Doust Z, Didar TF. Polysiloxane Nanofilaments Infused with Silicone Oil Prevent Bacterial Adhesion and Suppress Thrombosis on Intranasal Splints. ACS Biomater Sci Eng 2021; 7:541-552. [PMID: 33470781 DOI: 10.1021/acsbiomaterials.0c01487] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Like all biofluid-contacting medical devices, intranasal splints are highly prone to bacterial adhesion and clot formation. Despite their widespread use and the numerous complications associated with infected splints, limited success has been achieved in advancing their safety and surface biocompatibility, and, to date, no surface-coating strategy has been proposed to simultaneously enhance the antithrombogenicity and bacterial repellency of intranasal splints. Herein, we report an efficient, highly stable lubricant-infused coating for intranasal splints to render their surfaces antithrombogenic and repellent toward bacterial cells. Lubricant-infused intranasal splints were prepared by creating superhydrophobic polysiloxane nanofilament (PSnF) coatings using surface-initiated polymerization of n-propyltrichlorosilane (n-PTCS) and further infiltrating them with a silicone oil lubricant. Compared with commercially available intranasal splints, lubricant-infused, PSnF-coated splints significantly attenuated plasma and blood clot formation and prevented bacterial adhesion and biofilm formation for up to 7 days, the typical duration for which intranasal splints are kept. We further demonstrated that the performance of our engineered biointerface is independent of the underlying substrate and could be used to enhance the hemocompatibility and repellency properties of other medical implants such as medical-grade catheters.
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Affiliation(s)
- Esra Kasapgil
- Department of Materials Science and Engineering, Gebze Technical University, TR-41400 Gebze, Kocaeli, Turkey.,School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
| | - Maryam Badv
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Department of Mechanical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
| | - Claudia Alonso Cantú
- Department of Chemical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
| | - Sara Rahmani
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
| | - H Yildirim Erbil
- Department of Chemical Engineering, Gebze Technical University, TR-41400 Gebze, Kocaeli, Turkey
| | - Ilke Anac Sakir
- Department of Materials Science and Engineering, Gebze Technical University, TR-41400 Gebze, Kocaeli, Turkey
| | - Jeffrey I Weitz
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Department of Medicine, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Thrombosis & Atherosclerosis Research Institute (TaARI), 237 Barton Street East, Hamilton, Ontario, Canada L8L 2X2
| | - Zeinab Hosseini-Doust
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Department of Chemical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Institute for Infectious Disease Research (IIDR), McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Department of Mechanical Engineering, McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8.,Institute for Infectious Disease Research (IIDR), McMaster University, 1280 Main St W, Hamilton, Ontario, Canada L8S 4L8
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Badv M, Bayat F, Weitz JI, Didar TF. Single and multi-functional coating strategies for enhancing the biocompatibility and tissue integration of blood-contacting medical implants. Biomaterials 2020; 258:120291. [PMID: 32798745 DOI: 10.1016/j.biomaterials.2020.120291] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/27/2020] [Accepted: 08/01/2020] [Indexed: 12/27/2022]
Abstract
Device-associated clot formation and poor tissue integration are ongoing problems with permanent and temporary implantable medical devices. These complications lead to increased rates of mortality and morbidity and impose a burden on healthcare systems. In this review, we outline the current approaches for developing single and multi-functional surface coating techniques that aim to circumvent the limitations associated with existing blood-contacting medical devices. We focus on surface coatings that possess dual hemocompatibility and biofunctionality features and discuss their advantages and shortcomings to providing a biocompatible and biodynamic interface between the medical implant and blood. Lastly, we outline the newly developed surface modification techniques that use lubricant-infused coatings and discuss their unique potential and limitations in mitigating medical device-associated complications.
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Affiliation(s)
- Maryam Badv
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Fereshteh Bayat
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Jeffrey I Weitz
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Thrombosis & Atherosclerosis Research Institute (TaARI), Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada; Institute for Infectious Disease Research (IIDR), McMaster University, Hamilton, Ontario, Canada.
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7
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Badv M, Alonso-Cantu C, Shakeri A, Hosseinidoust Z, Weitz JI, Didar TF. Biofunctional Lubricant-Infused Vascular Grafts Functionalized with Silanized Bio-Inks Suppress Thrombin Generation and Promote Endothelialization. ACS Biomater Sci Eng 2019; 5:6485-6496. [DOI: 10.1021/acsbiomaterials.9b01062] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | | | | | - Jeffrey I. Weitz
- Thrombosis & Atherosclerosis Research Institute (TaARI), 237 Barton Street East, Hamilton, Ontario L8L 2X2, Canada
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Imani SM, Badv M, Shakeri A, Yousefi H, Yip D, Fine C, Didar TF. Micropatterned biofunctional lubricant-infused surfaces promote selective localized cell adhesion and patterning. Lab Chip 2019; 19:3228-3237. [PMID: 31468050 DOI: 10.1039/c9lc00608g] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Micropatterned biofunctional surfaces provide a wide range of applications in bioengineering. A key characteristic which is sought in these types of bio-interfaces is prevention of non-specific adhesion for enhanced biofunctionality and targeted binding. Lubricant-infused omniphobic coatings have exhibited superior performance in attenuating non-specific adhesion; however, these coatings completely block the surfaces and do not support targeted adhesion or patterning. In this work, we introduce a novel lubricant-infused surface with biofunctional micropatterned domains integrated within an omniphobic layer. This new class of micropatterned lubricant-infused surfaces simultaneously promotes localized and directed binding of desired targets, as well as repellency of undesired species, especially in human whole blood. Furthermore, this modification method is easily translatable to microfluidic devices offering a wider range of applications and improved performance for immunoassays in whole blood and inhibition of clot formation in microfluidic channels. The biofunctional micropatterned lubricant-infused surfaces were created through a bench-top straight forward process by integrating microcontact printing, chemical vapor deposition (CVD) of self-assembled monolayers (SAMs) of fluorosilanes, and further infusion of the SAMs with a bio-compatible fluorocarbon-based lubricant layer. The developed surfaces, patterned with anti-CD34 antibodies, yield enhanced adhesion and controlled localized binding of target biomolecules (e.g. antibodies) and CD34 positive cells (e.g. HUVECs) inside microfluidic devices, outperforming conventional blocking methods (e.g. bovine serum albumin (BSA) or poly(ethylene glycol) (PEG)) in buffer and human whole blood. These surfaces offer a straightforward and effective way to enhance blocking capabilities while preserving the biofunctionality of a micropatterned system in complex biological environments such as whole blood. We anticipate that these micropatterned biofunctional interfaces will find a wide range of applications in microfluidic devices and biosensors for enhanced and localized targeted binding while preventing non-specific adhesion.
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Affiliation(s)
- Sara M Imani
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Maryam Badv
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, JHE-308A, Hamilton, Ontario L8S 4L7, Canada.
| | - Hanie Yousefi
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Darren Yip
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, JHE-308A, Hamilton, Ontario L8S 4L7, Canada.
| | - Claire Fine
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, JHE-308A, Hamilton, Ontario L8S 4L7, Canada.
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada and Department of Mechanical Engineering, McMaster University, 1280 Main Street West, JHE-308A, Hamilton, Ontario L8S 4L7, Canada. and Institute for Infectious Disease Research (IIDR), McMaster University, Hamilton, Ontario, Canada
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9
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Shakeri A, Imani SM, Chen E, Yousefi H, Shabbir R, Didar TF. Plasma-induced covalent immobilization and patterning of bioactive species in microfluidic devices. Lab Chip 2019; 19:3104-3115. [PMID: 31429455 DOI: 10.1039/c9lc00364a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Here, we present a straightforward technique to create bio-functional microfluidic channels using CO2 plasma to induce both carboxylic and hydroxyl groups onto the channel surface. Consequently, not only does the surface allow for irreversible covalent bonding to an oxygen plasma treated PDMS for microfluidic device fabrication, but it also provides functionality for biomolecular immobilization. Furthermore, we demonstrate integration of this technique with microcontact printing to covalently micropattern functional biomolecules inside microfluidic channels. The bio-functionality and efficacy of the microcontact printed antibodies is demonstrated for both bioassays as well as patterning and culturing different cell lines. Results show that the introduced method can be an excellent candidate for cell culture studies in microfluidics. With the new printing method, full cell confluency (∼400 cells per mm2) was achieved after incubation for only 1 day, which is significantly greater than other conventional cell culture techniques inside microfluidic devices. As a proof of concept, we demonstrated the endothelial cells functionality by stimulating von Willebrand Factor secretion under shear stress. This is done via perfusion of histamine through the channel and performing immunofluorescence labeling to observe the inflammatory response of the cells. The developed method eliminates the need for wet chemistry and significantly simplifies producing bio-functional chips which can be used for biosensing, organs-on-chips and tissue engineering applications.
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Affiliation(s)
- Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
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10
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Yousefi H, Su HM, Imani SM, Alkhaldi K, M. Filipe CD, Didar TF. Intelligent Food Packaging: A Review of Smart Sensing Technologies for Monitoring Food Quality. ACS Sens 2019; 4:808-821. [PMID: 30864438 DOI: 10.1021/acssensors.9b00440] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Food safety is a major factor affecting public health and the well-being of society. A possible solution to control food-borne illnesses is through real-time monitoring of the food quality throughout the food supply chain. The development of emerging technologies, such as active and intelligent packaging, has been greatly accelerated in recent years, with a focus on informing consumers about food quality. Advances in the fields of sensors and biosensors has enabled the development of new materials, devices, and multifunctional sensing systems to monitor the quality of food. In this Review, we place the focus on an in-depth summary of the recent technological advances that hold the potential for being incorporated into food packaging to ensure food quality, safety, or monitoring of spoilage. These advanced sensing systems usually target monitoring gas production, humidity, temperature, and microorganisms' growth within packaged food. The implementation of portable and simple-to-use hand-held devices is also discussed in this Review. We highlight the mechanical and optical properties of current materials and systems, along with various limitations associated with each device. The technologies discussed here hold great potential for applications in food packaging and bring us one step closer to enable real-time monitoring of food throughout the supply chain.
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Affiliation(s)
- Hanie Yousefi
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
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11
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Rahmani S, Breyner NM, Su H, Verdu EF, Didar TF. Intestinal organoids: A new paradigm for engineering intestinal epithelium in vitro. Biomaterials 2019; 194:195-214. [DOI: 10.1016/j.biomaterials.2018.12.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/22/2018] [Accepted: 12/08/2018] [Indexed: 12/11/2022]
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12
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Badv M, Imani SM, Weitz JI, Didar TF. Lubricant-Infused Surfaces with Built-In Functional Biomolecules Exhibit Simultaneous Repellency and Tunable Cell Adhesion. ACS Nano 2018; 12:10890-10902. [PMID: 30352507 DOI: 10.1021/acsnano.8b03938] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Lubricant-infused omniphobic surfaces have exhibited outstanding effectiveness in inhibiting nonspecific adhesion and attenuating superimposed clot formation compared with other coated surfaces. However, such surfaces blindly thwart adhesion, which is troublesome for applications that rely on targeted adhesion. Here we introduce a new class of lubricant-infused surfaces that offer tunable bioactivity together with omniphobic properties by integrating biofunctional domains into the lubricant-infused layer. These novel surfaces promote targeted binding of desired species while simultaneously preventing nonspecific adhesion. To develop these surfaces, mixed self-assembled monolayers (SAMs) of aminosilanes and fluorosilanes were generated. Aminosilanes were utilized as coupling molecules for immobilizing capture ligands, and nonspecific adhesion of cells and proteins was prevented by infiltrating the fluorosilane molecules with a thin layer of a biocompatible fluorocarbon-based lubricant, thus generating biofunctional lubricant-infused surfaces. This method yields surfaces that (a) exhibit highly tunable binding of anti-CD34 and anti-CD144 antibodies and adhesion of endothelial cells, while repelling nonspecific adhesion of undesirable proteins and cells not only in buffer but also in human plasma or human whole blood, and (b) attenuate blood clot formation. Therefore, this straightforward and simple method creates biofunctional, nonsticky surfaces that can be used to optimize the performance of devices such as biomedical implants, extracorporeal circuits, and biosensors.
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Affiliation(s)
- Maryam Badv
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
| | - Sara M Imani
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
| | - Jeffrey I Weitz
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Thrombosis & Atherosclerosis Research Institute (TaARI) , Hamilton , Ontario L8S 4L7 , Canada
| | - Tohid F Didar
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Department of Mechanical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Institute for Infectious Disease Research (IIDR) , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
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13
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Shakeri A, Yip D, Badv M, Imani SM, Sanjari M, Didar TF. Self-Cleaning Ceramic Tiles Produced via Stable Coating of TiO₂ Nanoparticles. Materials (Basel) 2018; 11:ma11061003. [PMID: 29899252 PMCID: PMC6025286 DOI: 10.3390/ma11061003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/03/2018] [Accepted: 06/08/2018] [Indexed: 11/21/2022]
Abstract
The high photocatalytic power of TiO2 nanoparticles has drawn great attention in environmental and medical applications. Coating surfaces with these particles enables us to benefit from self-cleaning properties and decomposition of pollutants. In this paper, two strategies have been introduced to coat ceramic tiles with TiO2 nanoparticles, and the self-cleaning effect of the surfaces on degradation of an organic dye under ultraviolent (UV) exposure is investigated. In the first approach, a simple one-step heat treatment method is introduced for coating, and different parameters of the heat treatment process are examined. In the second method, TiO2 nanoparticles are first aminosilanized using (3-Aminopropyl)triethoxysilane (APTES) treatment followed by their covalently attachment onto CO2 plasma treated ceramic tiles via N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC) and N-Hydroxysuccinimide (NHS) chemistry. We monitor TiO2 nanoparticle sizes throughout the coating process using dynamic light scattering (DLS) and characterize developed surfaces using X-ray photoelectron spectroscopy (XPS). Moreover, hydrophilicity of the coated surfaces is quantified using a contact angle measurement. It is shown that applying a one-step heat treatment process with the optimum temperature of 200 °C for 5 h results in successful coating of nanoparticles and rapid degradation of dye in a short time. In the second strategy, the APTES treatment creates a stable covalent coating, while the photocatalytic capability of the particles is preserved. The results show that coated ceramic tiles are capable of fully degrading the added dyes under UV exposure in less than 24 h.
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Affiliation(s)
- Amid Shakeri
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
| | - Darren Yip
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
| | - Maryam Badv
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
| | - Sara M Imani
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
| | - Mehdi Sanjari
- Nanophyll Inc., 175 Longwood Rd South, Hamilton, ON L8P 0A1, Canada.
| | - Tohid F Didar
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada.
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
- Institute for Infectious Disease Research (IIDR), McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L8, Canada.
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Yousefi H, Ali MM, Su HM, Filipe CDM, Didar TF. Sentinel Wraps: Real-Time Monitoring of Food Contamination by Printing DNAzyme Probes on Food Packaging. ACS Nano 2018; 12:3287-3294. [PMID: 29621883 DOI: 10.1021/acsnano.7b08010] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here, we report the development of a transparent, durable, and flexible sensing surface that generates a fluorescence signal in the presence of a specific target bacterium. This material can be used in packaging, and it is capable of monitoring microbial contamination in various types of food products in real time without having to remove the sample or the sensor from the package. The sensor was fabricated by covalently attaching picoliter-sized microarrays of an E. coli-specific RNA-cleaving fluorogenic DNAzyme probe (RFD-EC1) to a thin, flexible, and transparent cyclo-olefin polymer (COP) film. Our experimental results demonstrate that the developed (RFD-EC1)-COP surface is specific, stable for at least 14 days under various pH conditions (pH 3-9), and can detect E. coli in meat and apple juice at concentrations as low as 103 CFU/mL. Furthermore, we demonstrate that our sensor is capable of detecting bacteria while still attached to the food package, which eliminates the need to manipulate the sample. The developed biosensors are stable for at least the shelf life of perishable packaged food products and provide a packaging solution for real-time monitoring of pathogens. These sensors hold the potential to make a significant contribution to the ongoing efforts to mitigate the negative public-health-related impacts of food-borne illnesses.
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