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Uhuo O, Waryo T, Oranzie M, Sanga N, Leve Z, January J, Tshobeni Z, Pokpas K, Douman S, Iwuoha E. Interferon gamma (IFN-γ)-sensitive TB aptasensor based on novel chitosan-indium nano-kesterite (χtCITS)-labeled DNA aptamer hairpin technology. Bioelectrochemistry 2024; 158:108693. [PMID: 38554559 DOI: 10.1016/j.bioelechem.2024.108693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 04/01/2024]
Abstract
There has been increasing interest in the use of biosensors for diagnosis of infectious diseases such as tuberculosis (TB) due to their simplicity, affordability, and potential for point-of-care application. The incorporation of aptamer molecules and nanomaterials in biosensor fabrication explores the advantages of high-binding affinity and low immunogenicity of aptamers as well as the high surface-to-volume ratio of nanomaterials, for increased aptasensor performance. In this work, we employed a novel microwave-synthesized copper indium tin sulfide (CITS) substituted-kesterite nanomaterial, together with a natural biopolymer (chitosan), for signal amplification and increased loading of aptamer molecules. Study of the optical properties of CITS nanomaterials showed strong absorption in the UV region characteristic of kesterite semiconductor nanomaterials. X-ray diffraction analysis confirmed the presence of the kesterite phase with average crystallite size of 6.188 nm. Fabrication of interferon-gamma (IFN-γ) TB aptasensor with a chitosan-CITS nanocomposite (χtCITS) increased the aptasensor's electrochemical properties by 77.5 % and improved aptamer loading by 73.7 %. The aptasensor showed excellent sensitivity to IFN-γ concentrations with limit of detection of 6885 fg/mL (405 fM) and linear range of 850-17000 fg/mL (50 - 1000 fM). The aptasensor also exhibited excellent storage and electrochemical stability, with good selectivity towards IFN-γ and possible real sample application.
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Affiliation(s)
- Onyinyechi Uhuo
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa.
| | - Tesfaye Waryo
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Marlon Oranzie
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Nelia Sanga
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Zandile Leve
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Jaymi January
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Ziyanda Tshobeni
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Keagan Pokpas
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Samantha Douman
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa; Department of Chemistry, PD Hahn Building, 28 Chemistry Road, Upper Campus, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town, South Africa
| | - Emmanuel Iwuoha
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa.
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Sciortino F, Rydzek G, Boulmedais F. Electrochemical Assembly Strategies of Polymer and Hybrid Thin Films for (Bio)sensors, Charge Storage, and Triggered Release. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11149-11165. [PMID: 37542435 DOI: 10.1021/acs.langmuir.3c00860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2023]
Abstract
In the context of functional and hierarchical materials, electrode reactions coupled with one or more chemical reactions constitute the most powerful bottom-up process for the electrosynthesis of film components and their electrodeposition, enabling the localized functionalization of conductive surfaces using an electrical stimulus. In analogy with developmental biological processes, our group introduced the concept of morphogen-driven film buildup. In this approach, the gradient of a diffusing reactive molecule or ion (called a morphogen) is controlled by an electrical stimulus to locally induce a chemical process (solubility change, hydrolysis, complexation, and covalent reaction) that induces a film assembly. One of the prominent advantages of this technique is the conformal nature of the deposits toward the electrode. This Feature Article presents the contributions made by our group and other researchers to develop strategies for the assembly of different polymer and nanoparticle/polymer hybrid films by using electrochemically generated reagents and/or catalysts. The main electrochemical-chemical approaches for conformal films are described in the case where (i) the products are noncovalent aggregates that spontaneously precipitate on the electrode (film electrodeposition) or (ii) new chemical compounds are generated, which do not necessarily spontaneously precipitate and enable the formation of covalent or noncovalent films (film electrosynthesis). The applications of those electrogenerated films will be described with a focus on charge storage/transport, (bio)sensing, and stimuli-responsive cargo delivery systems.
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Affiliation(s)
- Flavien Sciortino
- University of Basel, Department of Chemistry Basel, Basel-Stadt 4001, Switzerland
| | - Gaulthier Rydzek
- ICGM, CNRS, ENSCM, Université de Montpellier, 34000 Montpellier, France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22, 67034 Strasbourg, France
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Liu Y, Kim E, Lei M, Wu S, Yan K, Shen J, Bentley WE, Shi X, Qu X, Payne GF. Electro-Biofabrication. Coupling Electrochemical and Biomolecular Methods to Create Functional Bio-Based Hydrogels. Biomacromolecules 2023. [PMID: 37155361 DOI: 10.1021/acs.biomac.3c00132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Twenty years ago, this journal published a review entitled "Biofabrication with Chitosan" based on the observations that (i) chitosan could be electrodeposited using low voltage electrical inputs (typically less than 5 V) and (ii) the enzyme tyrosinase could be used to graft proteins (via accessible tyrosine residues) to chitosan. Here, we provide a progress report on the coupling of electronic inputs with advanced biological methods for the fabrication of biopolymer-based hydrogel films. In many cases, the initial observations of chitosan's electrodeposition have been extended and generalized: mechanisms have been established for the electrodeposition of various other biological polymers (proteins and polysaccharides), and electrodeposition has been shown to allow the precise control of the hydrogel's emergent microstructure. In addition, the use of biotechnological methods to confer function has been extended from tyrosinase conjugation to the use of protein engineering to create genetically fused assembly tags (short sequences of accessible amino acid residues) that facilitate the attachment of function-conferring proteins to electrodeposited films using alternative enzymes (e.g., transglutaminase), metal chelation, and electrochemically induced oxidative mechanisms. Over these 20 years, the contributions from numerous groups have also identified exciting opportunities. First, electrochemistry provides unique capabilities to impose chemical and electrical cues that can induce assembly while controlling the emergent microstructure. Second, it is clear that the detailed mechanisms of biopolymer self-assembly (i.e., chitosan gel formation) are far more complex than anticipated, and this provides a rich opportunity both for fundamental inquiry and for the creation of high performance and sustainable material systems. Third, the mild conditions used for electrodeposition allow cells to be co-deposited for the fabrication of living materials. Finally, the applications have been expanded from biosensing and lab-on-a-chip systems to bioelectronic and medical materials. We suggest that electro-biofabrication is poised to emerge as an enabling additive manufacturing method especially suited for life science applications and to bridge communication between our biological and technological worlds.
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Affiliation(s)
- Yi Liu
- Institute for Bioscience and Biotechnology Research and Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, Maryland 20742, United States
| | - Eunkyoung Kim
- Institute for Bioscience and Biotechnology Research and Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, Maryland 20742, United States
| | - Miao Lei
- Key Laboratory for Ultrafine Materials of Ministry of Education Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Si Wu
- College of Resources and Environmental Engineering, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Kun Yan
- Hubei Key Laboratory of Advanced Textile Materials & Application, Wuhan Textile University, Wuhan 430200, P. R. China
| | - Jana Shen
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
| | - William E Bentley
- Institute for Bioscience and Biotechnology Research and Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, United States
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430079, P. R. China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research and Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, Maryland 20742, United States
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Ly KL, Hu P, Raub CB, Luo X. Programmable Physical Properties of Freestanding Chitosan Membranes Electrofabricated in Microfluidics. MEMBRANES 2023; 13:294. [PMID: 36984680 PMCID: PMC10052736 DOI: 10.3390/membranes13030294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/14/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Microfluidic-integrated freestanding membranes with suitable biocompatibility and tunable physicochemical properties are in high demand for a wide range of life science and biological studies. However, there is a lack of facile and rapid methods to integrate such versatile membranes into microfluidics. A recently invented interfacial electrofabrication of chitosan membranes offers an in-situ membrane integration strategy that is flexible, controllable, simple, and biologically friendly. In this follow-up study, we explored the ability to program the physical properties of these chitosan membranes by varying the electrofabrication conditions (e.g., applied voltage and pH of alginate). We found a strong association between membrane growth rate, properties, and fabrication parameters: high electrical stimuli and pH of alginate resulted in high optical retardance and low permeability, and vice versa. This suggests that the molecular alignment and density of electrofabricated chitosan membranes could be actively tailored according to application needs. Lastly, we demonstrated that this interfacial electrofabrication could easily be expanded to produce chitosan membrane arrays with higher uniformity than the previously well-established flow assembly method. This study demonstrates the tunability of the electrofabricated membranes' properties and functionality, thus expanding the utility of such membranes for broader applications in the future.
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Affiliation(s)
- Khanh L. Ly
- Department of Biomedical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, USA
| | - Piao Hu
- Department of Mechanical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, USA
| | - Christopher B. Raub
- Department of Biomedical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, USA
| | - Xiaolong Luo
- Department of Mechanical Engineering, School of Engineering, Catholic University of America, Washington, DC 20064, USA
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Potential for Antibacterial Activity of Chitosan-Polyvinyl Alcohol Membrane Loaded with Green Grass Jelly Leaf and Moringa Leaf Extract as a Wound Dressing. JURNAL KIMIA SAINS DAN APLIKASI 2022. [DOI: 10.14710/jksa.25.4.146-154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chitosan is a natural polymer that can be used as wound dressing material; however, it has rigid and brittle properties. A combination of chitosan and polyvinyl alcohol (PVA) is expected to allow improvement of chitosan’s mechanical properties. Green grass jelly leaf (Cyclea barbarta M.) and moringa leaf (Moringa oleifera L.) have antibacterial compounds that can be added to the chitosan-PVA composite membrane. The purpose of the research was to develop and characterize the chitosan-PVA composite membrane with the addition of green grass jelly leaf and moringa leaf extracts to enhance the antibacterial activity of the membranes that have potential as a wound dressing. Both extracts with various composition volumes (75:25, 50:50, and 25:75) were tested for antibacterial activities against S. aureus and E. coli. Chitosan-PVA composite membrane with the volume ratios of 5:5, 6:4, and 7:3 was added with extract with the highest antibacterial activity. The composites were characterized for density, water vapor permeability, tensile strength, elongation, Fourier Transform Infrared spectroscopy, and Scanning Electron Microscope. The most significant inhibition zone was shown by an extract ratio of 50:50 against S. aureus and E. coli, 13.00±1.17 mm and 7.00±0.17 mm, respectively. Composite membrane with the addition of extract had a larger inhibition zone against S. aureus (9.75±0.75 mm) and E. coli (7.50±0.65 mm) than without extract. Chitosan-PVA(5:5)+extract membrane showed excellent density and water vapor permeability compared to other membrane ratio compositions. Mechanically, the addition of extract decreased the tensile strength and elongation of the membranes; however, it still complied with the medical material standard criteria. The characterization for functional groups showed that chitosan-PVA+extract generated the N-H group peak with two wavenumbers expressed as overlapping amides with amines and protonated amines. The SEM analysis showed that the addition of extract was not distributed homogeneously on the membrane surface.
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Lairenjam PD, Sukumaran SK, Satapathy DK. Modulation of Optical Anisotropy in Chitosan Thin Films: Role of Swelling. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pradipkanti Devi Lairenjam
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
- Molecular Electronics Laboratory, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru 560064, India
| | - Sathish K. Sukumaran
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan
| | - Dillip K. Satapathy
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
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7
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Murali A, Ganesan M, Satapathy DK, Kumar PBS. Penetrant-Induced Glass-like Transition in Thin Chitosan Films. J Phys Chem B 2021; 125:12617-12626. [PMID: 34730977 DOI: 10.1021/acs.jpcb.1c07903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present the water vapor-induced swelling and the emergence of a penetrant-induced glass-like transition in the substrate-supported glassy chitosan thin films. The time evolution of the film thickness under different levels of relative humidity conditions is measured in real-time using a spectroscopic ellipsometer equipped with a humidity cell. In a dry film, the network of chitosan chains is in a glassy state, and upon exposure to water vapor, initially, the film swells by Fickian diffusion of water molecules, which triggers the structural relaxations of the chains. Under higher humidity conditions, a relatively slower evolution of thickness succeeds the initial rapid swelling due to the non-Fickian sorption of water molecules. The swelling characteristics of the polymer films are accounted for by considering the diffusion-relaxation mechanism of chains in the presence of smaller penetrant molecules. The penetrant-induced glass-like transition (Pg), where the polymer film isothermally transits from a glassy to a rubbery state, is determined for pristine and cross-linked chitosan films. Pg is determined from the abrupt change in the rate of swelling observed upon increasing the relative humidity. Chemical crosslinking has an evident influence on the penetrant-induced glass-like transition of the chitosan films. Pg was found to rise sharply for stiffer films with higher cross-linking density.
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Affiliation(s)
- Aathira Murali
- Department of Physics, Indian Institute of Technology Palakkad, Kanjikode, Kerala 678623, India
| | - Manikandan Ganesan
- Soft Materials Laboratory, Department of Physics and Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dillip K Satapathy
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India
| | - P B Sunil Kumar
- Department of Physics, Indian Institute of Technology Palakkad, Kanjikode, Kerala 678623, India
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8
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Erden PE, Kaçar Selvi C, Kılıç E. A novel tyramine biosensor based on carbon nanofibers, 1-butyl-3-methylimidazolium tetrafluoroborate and gold nanoparticles. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ly KL, Hu P, Pham LHP, Luo X. Flow-assembled chitosan membranes in microfluidics: recent advances and applications. J Mater Chem B 2021; 9:3258-3283. [PMID: 33725061 PMCID: PMC8369861 DOI: 10.1039/d1tb00045d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The integration of membranes in microfluidic devices has been extensively exploited for various chemical engineering and bioengineering applications over the past few decades. To augment the applicability of membrane-integrated microfluidic platforms for biomedical and tissue engineering studies, a biologically friendly fabrication process with naturally occurring materials is highly desired. The in situ preparation of membranes involving interfacial reactions between parallel laminar flows in microfluidic networks, known as the flow-assembly technique, is one of the most biocompatible approaches. Membranes of many types with flexible geometries have been successfully assembled inside complex microchannels using this facile and versatile flow-assembly approach. Chitosan is a naturally abundant polysaccharide known for its pronounced biocompatibility, biodegradability, good mechanical stability, ease of modification and processing, and film-forming ability under near-physiological conditions. Chitosan membranes assembled by flows in microfluidics are freestanding, robust, semipermeable, and well-aligned in microstructure, and show high affinity to bioactive reagents and biological components (e.g. biomolecules, nanoparticles, or cells) that provide facile biological functionalization of microdevices. Here, we discuss the recent developments and optimizations in the flow-assembly of chitosan membranes and chitosan-based membranes in microfluidics. Furthermore, we recapitulate the applications of the chitosan membrane-integrated microfluidic platforms dedicated to biology, biochemistry, and drug release fields, and envision the future developments of this important platform with versatile functions.
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Affiliation(s)
- Khanh L Ly
- Department of Biomedical Engineering, The Catholic University of America, Washington, DC 20064, USA
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10
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Sung WH, Tsao YT, Shen CJ, Tsai CY, Cheng CM. Small-volume detection: platform developments for clinically-relevant applications. J Nanobiotechnology 2021; 19:114. [PMID: 33882955 PMCID: PMC8058587 DOI: 10.1186/s12951-021-00852-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/07/2021] [Indexed: 12/16/2022] Open
Abstract
Biochemical analysis of human body fluids is a frequent and fruitful strategy for disease diagnosis. Point-of-care (POC) diagnostics offers the tantalizing possibility of providing rapid diagnostic results in non-laboratory settings. Successful diagnostic testing using body fluids has been reported on in the literature; however, small-volume detection devices, which offer remarkable advantages such as portability, inexpensiveness, capacity for mass production, and tiny sample volume requirements have not been thoroughly discussed. Here, we review progress in this research field, with a focus on developments since 2015. In this review article, we provide a summary of articles that have detailed the development of small-volume detection strategies using clinical samples over the course of the last 5 years. Topics covered include small-volume detection strategies in ophthalmology, dermatology or plastic surgery, otolaryngology, and cerebrospinal fluid analysis. In ophthalmology, advances in technology could be applied to examine tear or anterior chamber (AC) fluid for glucose, lactoferrin, interferon, or VEGF. These approaches could impact detection and care for diseases including diabetic mellitus, dry-eye disease, and age-related maculopathy. Early detection and easy monitoring are critical approaches for improving overall care and outcome. In dermatology or plastic surgery, small-volume detection strategies have been applied for passive or interactive wound dressing, wound healing monitoring, and blister fluid analysis for autoimmune disease diagnosis. In otolaryngology, the analysis of nasal secretions and mucosa could be used to differentiate between allergic responses and infectious diseases. Cerebrospinal fluid analysis could be applied in neurodegenerative diseases, central neural system infection and tumor diagnosis. Other small-volume fluids that have been analyzed for diagnostic and monitoring purposes include semen and cervico-vaginal fluids. We include more details regarding each of these fluids, associated collection and detection devices, and approaches in our review.
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Affiliation(s)
- Wei-Hsuan Sung
- Chang Gung Memorial Hospital, Linkou Medical Center and Chang Gung Medical College and Chang Gung University, Taoyuan, Taiwan
| | - Yu-Ting Tsao
- Chang Gung Memorial Hospital, Linkou Medical Center and Chang Gung Medical College and Chang Gung University, Taoyuan, Taiwan
| | - Ching-Ju Shen
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Ying Tsai
- Department of Ophthalmology, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan.
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan.
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Effect of swift heavy ions irradiation on physicochemical and dielectric properties of chitosan and chitosan-Ag nanocomposites. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.109288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Min SY, Cho WJ. Memristive Switching Characteristics in Biomaterial Chitosan-Based Solid Polymer Electrolyte for Artificial Synapse. Int J Mol Sci 2021; 22:E773. [PMID: 33466648 PMCID: PMC7828668 DOI: 10.3390/ijms22020773] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/09/2021] [Accepted: 01/10/2021] [Indexed: 01/05/2023] Open
Abstract
This study evaluated the memristive switching characteristics of a biomaterial solid polymer electrolyte (SPE) chitosan-based memristor and confirmed its artificial synaptic behavior with analog switching. Despite the potential advantages of organic memristors for high-end electronics, the unstable multilevel states and poor reliability of organic devices must be overcome. The fabricated Ti/SPE-chitosan/Pt-structured memristor has stable bipolar resistive switching (BRS) behavior due to a cation-based electrochemical reaction between a polymeric electrolyte and metal ions and exhibits excellent endurance in 5 × 102 DC cycles. In addition, we achieved multilevel per cell (MLC) BRS I-V characteristics by adjusting the set compliance current (Icc) for analog switching. The multilevel states demonstrated uniform resistance distributions and nonvolatile retention characteristics over 104 s. These stable MLC properties are explained by the laterally intensified conductive filaments in SPE-chitosan, based on the linear relationship between operating voltage margin (ΔVswitching) and Icc. In addition, the multilevel resistance dependence on Icc suggests the capability of continuous analog resistance switching. Chitosan-based SPE artificial synapses ensure the emulation of short- and long-term plasticity of biological synapses, including excitatory postsynaptic current, inhibitory postsynaptic current, paired-pulse facilitation, and paired-pulse depression. Furthermore, the gradual conductance modulations upon repeated stimulation by 104 electric pulses were evaluated in high stability.
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Affiliation(s)
| | - Won-Ju Cho
- Department of Electronic Materials Engineering, Kwangwoon University, Chambit-kwan, B104, Nowon-gu, Seoul 01897, Korea;
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Mąkiewicz M, Wach RA, Nawrotek K. Investigation of Parameters Influencing Tubular-Shaped Chitosan-Hydroxyapatite Layer Electrodeposition. Molecules 2020; 26:E104. [PMID: 33379393 PMCID: PMC7796046 DOI: 10.3390/molecules26010104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 12/11/2022] Open
Abstract
Tubular-shaped layer electrodeposition from chitosan-hydroxyapatite colloidal solutions has found application in the field of regeneration or replacement of cylindrical tissues and organs, especially peripheral nerve tissue regeneration. Nevertheless, the quantitative and qualitative characterisation of this phenomenon has not been described. In this work, the colloidal systems are subjected to the action of an electric current initiated at different voltages. Parameters of the electrodeposition process (i.e., total charge exchanged, gas volume, and deposit thickness) are monitored over time. Deposit structures are investigated by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). The value of voltage influences structural characteristics but not thickness of deposit for the process lasting at least 20 min. The calculated number of exchanged electrons for studied conditions suggests that the mechanism of deposit formation is governed not only by water electrolysis but also interactions between formed hydroxide ions and calcium ions coordinated by chitosan chains.
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Affiliation(s)
- Mariusz Mąkiewicz
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924 Lodz, Poland;
| | - Radosław A. Wach
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Wroblewskiego 15 Street, 93-590 Lodz, Poland;
| | - Katarzyna Nawrotek
- Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213 Street, 90-924 Lodz, Poland;
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14
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Subramanian S, Huiszoon RC, Chu S, Bentley WE, Ghodssi R. Microsystems for biofilm characterization and sensing - A review. Biofilm 2020; 2:100015. [PMID: 33447801 PMCID: PMC7798443 DOI: 10.1016/j.bioflm.2019.100015] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/11/2019] [Accepted: 11/26/2019] [Indexed: 11/30/2022] Open
Abstract
Biofilms are the primary cause of clinical bacterial infections and are impervious to typical amounts of antibiotics, necessitating very high doses for elimination. Therefore, it is imperative to have suitable methods for characterization to develop novel methods of treatment that can complement or replace existing approaches using significantly lower doses of antibiotics. This review presents some of the current developments in microsystems for characterization and sensing of bacterial biofilms. Initially, we review current standards for studying biofilms that are based on invasive and destructive end-point biofilm characterization. Additionally, biofilm formation and growth is extremely sensitive to various growth and environmental parameters that cause large variability in biofilms between repeated experiments, making it very difficult to compare experimental repeats and characterize the temporal characteristics of these organisms. To address these challenges, recent developments in the field have moved toward systems and miniature devices that can aid in the non-invasive characterization of bacterial biofilms. Our review focuses on several types of microsystems for biofilm evaluation including optical, electrochemical, and mechanical systems. This review will show how these devices can lead to better understanding of the physiology and function of these communities of bacteria, which can eventually lead to the development of novel treatments that do not rely on high-dosage antibiotics.
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Affiliation(s)
- Sowmya Subramanian
- MEMS Sensors and Actuators Laboratory, University of Maryland, College Park, MD, USA
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
- Institute for Systems Research, University of Maryland, College Park, MD, USA
| | - Ryan C. Huiszoon
- MEMS Sensors and Actuators Laboratory, University of Maryland, College Park, MD, USA
- Institute for Systems Research, University of Maryland, College Park, MD, USA
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Sangwook Chu
- MEMS Sensors and Actuators Laboratory, University of Maryland, College Park, MD, USA
- Institute for Systems Research, University of Maryland, College Park, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - William E. Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Reza Ghodssi
- MEMS Sensors and Actuators Laboratory, University of Maryland, College Park, MD, USA
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, USA
- Institute for Systems Research, University of Maryland, College Park, MD, USA
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA
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15
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Hu P, Rooholghodos SA, Pham LH, Ly KL, Luo X. Interfacial Electrofabrication of Freestanding Biopolymer Membranes with Distal Electrodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11034-11043. [PMID: 32885979 PMCID: PMC8375314 DOI: 10.1021/acs.langmuir.0c01894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Using electrical signals to guide materials' deposition has a long-standing history in metal coating, microchip fabrication, and the integration of organics with devices. In electrodeposition, however, the conductive materials can be deposited only onto the electrode surfaces. Here, an innovative process is presented to electrofabricate freestanding biopolymer membranes at the interface of electrolytes without any supporting electrodes at the fabrication site. Chitosan, a derivative from the naturally abundant biopolymer chitin, has been broadly explored in electrodeposition for integrating biological entities onto microfabricated devices. It is widely believed that the pH gradients generated at the cathode deprotonate the positively charged chitosan chains into a film on the cathode surface. The interfacial electrofabrication with pH indicators, however, demonstrated that the membrane growth was driven by the instantaneous flow of hydroxyl ions from the ambient alginate solution, rather than the slow propagation of pH gradients from the cathode surface. This interfacial electrofabrication produces freestanding membrane structures and can be expanded to other materials, which presents a new direction in using electrical signals for manufacturing.
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16
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Resazurin-Based Assay for Quantifying Living Cells during Alkaline Phosphatase (ALP) Release. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113840] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Alkaline phosphatase (ALP) is an important reporter gene in the gene expression system, therefore monitoring cellular behavior including cell viability during ALP release is of significance. This assay produced a quantitative resazurin-based assay for cell viability in embryonic and cancer cells during alkaline phosphatase (ALP) release. A post-confluence culture method was applied to induce ALP in the cells of Balb/c 3T3, A549, MCF-7, and Ht-29. The density of each cell type was optimized using the standard cell culture assay. The main parameters affecting the results of resazurin involve the concentration of resazurin, incubation time, and cell number. The redox reaction, in which resazurin is reduced by the cells, was measured by fluorescence at 544 nm and 590 nm. The obtained data were compared with the hemocytometer assay. ALP release was determined using the optical active substrate p-nitrophenyl phosphate and colorimetric assay.
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17
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UV-Enhanced Humidity Sensing of Chitosan-SnO 2 Hybrid Nanowires. NANOMATERIALS 2020; 10:nano10020329. [PMID: 32075077 PMCID: PMC7075216 DOI: 10.3390/nano10020329] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 11/20/2022]
Abstract
The surface of SnO2 nanowires was functionalized by chitosan for the development of room-temperature conductometric humidity sensors. SnO2 nanowires were synthesized by the seed-mediated physical-vapor-deposition (PVD) method. Chitosan layers were deposited on top of the SnO2 nanowires by spin coating. Surface morphology, crystal structure, and optical properties of the synthesized hybrid nanostructure were investigated by scanning electron microscope, grazing incidence X-ray diffraction, and UV–Vis absorption measurements. During electrical conductivity measurements, the hybrid nanostructure showed unusual behavior towards various relative humidity (RH) concentrations (25%, 50%, 75%), under UV-light irradiation, and in dark conditions. The highest sensor responses were recorded towards an RH level of 75%, resulting in 1.1 in the dark and 2.5 in a UV-irradiated chamber. A novel conduction mechanism of hybrid nanowires is discussed in detail by comparing the sensing performances of chitosan film, SnO2 nanowires, and chitosan@SnO2 hybrid nanostructures.
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18
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Pengpumkiat S, Wu Y, Sumantakul S, Remcho VT. A Membrane-based Disposable Well-Plate for Cyanide Detection Incorporating a Fluorescent Chitosan-CdTe Quantum Dot. ANAL SCI 2020; 36:193-197. [PMID: 31495817 DOI: 10.2116/analsci.19p267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel approach to building a membrane-based disposable well-plate, here applied to cyanide detection, is described. Chitosan encapsulated CdTe quantum dots with a maximum emission at 520 nm (CS-QD520) were used as fluorophores. The CS-QD520 nanoparticle was specifically quenched by copper(II), and the quenched CS-QD520 (Cu-CS-QD520) was deposited onto a glass microfiber filter (GF/B). Subsequent introduction of cyanide ion resulted in fluorescence recovery. The "signal-ON" fluorescence linearly correlated to cyanide concentrations in the range of 38.7 to 200 μM with a limit of detection of 11.6 μM. The assay was incorporated into a membrane-based well-plate format to enhance sample throughput. A three-layer paper/glass microfiber well plate design was cut using a laser cutter and assembled using a polycaprolactone (PCL) as a bonding agent in a low-cost laminator. The experimental conditions were optimized and applied to detect cyanide in drinking water with rapid, high-throughput, low-cost analysis.
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Affiliation(s)
| | - Yuanyuan Wu
- Department of Chemistry, Oregon State University
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19
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Bagal-Kestwal DR, Chiang BH. Exploration of Chitinous Scaffold-Based Interfaces for Glucose Sensing Assemblies. Polymers (Basel) 2019; 11:E1958. [PMID: 31795230 PMCID: PMC6960682 DOI: 10.3390/polym11121958] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 01/09/2023] Open
Abstract
: The nanomaterial-integrated chitinous polymers have promoted the technological advancements in personal health care apparatus, particularly for enzyme-based devices like the glucometer. Chitin and chitosan, being natural biopolymers, have attracted great attention in the field of biocatalysts engineering. Their remarkable tunable properties have been explored for enhancing enzyme performance and biosensor advancements. Currently, incorporation of nanomaterials in chitin and chitosan-based biosensors are also widely exploited for enzyme stability and interference-free detection. Therefore, in this review, we focus on various innovative multi-faceted strategies used for the fabrication of biological assemblies using chitinous biomaterial interface. We aim to summarize the current development on chitin/chitosan and their nano-architecture scaffolds for interdisciplinary biosensor research, especially for analytes like glucose. This review article will be useful for understanding the overall multifunctional aspects and progress of chitin and chitosan-based polysaccharides in the food, biomedical, pharmaceutical, environmental, and other diverse applications.
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Affiliation(s)
- Dipali R. Bagal-Kestwal
- Institute of Food Science and Technology, National Taiwan University, No.1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
| | - Been-Huang Chiang
- Institute of Food Science and Technology, National Taiwan University, No.1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
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20
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Temoçin Z. Fabrication of a κ-carrageenan-based electroactive cytochrome c multilayer thin film by an electrostatic layer-by-layer assembly. Bioelectrochemistry 2019; 129:34-41. [DOI: 10.1016/j.bioelechem.2019.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 04/27/2019] [Accepted: 04/27/2019] [Indexed: 11/29/2022]
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21
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Li S, Noroozifar M, Kerman K. Nanocomposite of ferricyanide-doped chitosan with multi-walled carbon nanotubes for simultaneous senary detection of redox-active biomolecules. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113376] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Wathoni N, Rusdiana T, Hasanah AN, Muhtadi A, Pratiwi ED, Mahmudah R, Mohammed AFA, Okajima M, Kaneko T, Arima H. Sacran Hydrogel Film Containing Keratinocyte Growth Factor Accelerates Wound Healing by Stimulating Fibroblast Migration and Re-epithelization. Chem Pharm Bull (Tokyo) 2019; 67:849-854. [PMID: 31366834 DOI: 10.1248/cpb.c19-00291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Regenerative therapy with keratinocyte growth factor (KGF) is a novel therapeutic approach for treatment of chronic wounds. However, KGF cannot be used directly to the wound site due to its physicochemical instability. In previous study, sacran, a natural megamolecular polysaccharide, showed potential properties as a biomaterial for hydrogel film in wound healing. In this study, we fabricated sacran hydrogel film containing KGF (Sac/KGF-HF) and evaluated the effects of Sac/KGF-HF on fibroblasts migration and re-epithelialization process. We successfully prepared a homogenous and -amorphous Sac/KGF-HF by a casting method. In addition, Sac/KGF-HF had a high swelling ratio and flexibility. Sac/KGF-HF promoted a migration process of NIH3T3 cells and improved wound healing ability in mice with a percentage of wound closure reaching 90.4% at 9 d. Interestingly, the addition of KGF in Sac-HF considerably increased the number of epithelial cells compared to control, which is important in the re-epithelialization process. It could be concluded that KGF in Sac-HF has the potential for promoting Sac-HF abilities in wound healing process.
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Affiliation(s)
- Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University Padjadjaran.,Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Taofik Rusdiana
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University Padjadjaran
| | - Aliya Nur Hasanah
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, University Padjadjaran
| | - Ahmad Muhtadi
- Department of Pharmacology, Faculty of Pharmacy, University Padjadjaran
| | - Elasari Dwi Pratiwi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University Padjadjaran
| | - Ripa'tul Mahmudah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University Padjadjaran
| | - Ahmed Fouad Abdelwahab Mohammed
- Graduate School of Pharmaceutical Sciences, Kumamoto University.,Department of Pharmaceutics, Faculty of Pharmacy, Minia University
| | - Maiko Okajima
- Japan Advanced Institute of Science and Technology (JAIST)
| | - Tatsuo Kaneko
- Japan Advanced Institute of Science and Technology (JAIST)
| | - Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University
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23
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Jiang Y, Wu J. Recent development in chitosan nanocomposites for surface-based biosensor applications. Electrophoresis 2019; 40:2084-2097. [PMID: 31081120 DOI: 10.1002/elps.201900066] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 01/16/2023]
Abstract
Recent years have witnessed ever expanding use of biosensors in the fields of environmental monitoring, homeland security, pharmaceutical, food and bioprocessing, and agricultural industries. To produce effective and reliable biosensors, good quality immobilization of biological recognition elements is critical. Chitosan and its nanocomposites emerge as an excellent immobilization matrix on biosensor surface. As a natural polysaccharide, chitosan has many useful characteristics, such as high permeability and mechanical strength, biocompatibility and non-toxicity, availability, and low cost. Due to the presence of amino and hydroxyl groups on chitosan, chitosan can easily crosslink with a variety of nanomaterials. This investigation of chitosan nanocomposite-based biosensors presents recent development and innovations in the preparation of chitosan nanocomposites in coordination with biosensors for various bio-detection applications, including chitosan nanocomposites formed with carbon nanomaterials, various inorganic and biological complexes. These chitosan nanocomposite based biosensors have demonstrated good sensitivity selectivity and stability for the detection of different types of targets ranging from glucose, proteins, DNAs, small biomolecules to bacteria. It is in our hope that this review will offer guidance for the development of novel biosensors and open up opportunities in the field of biosensor research.
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Affiliation(s)
- Yu Jiang
- Electrical and Computer Engineering, The University of Tennessee, Knoxville, USA
| | - Jayne Wu
- Electrical and Computer Engineering, The University of Tennessee, Knoxville, USA
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24
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Taira N, Ino K, Ida H, Nashimoto Y, Shiku H. Electrodeposition-based rapid bioprinting of 3D-designed hydrogels with a pin art device. Biofabrication 2019; 11:035018. [DOI: 10.1088/1758-5090/ab166e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Li J, Wu S, Kim E, Yan K, Liu H, Liu C, Dong H, Qu X, Shi X, Shen J, Bentley WE, Payne GF. Electrobiofabrication: electrically based fabrication with biologically derived materials. Biofabrication 2019; 11:032002. [PMID: 30759423 PMCID: PMC7025432 DOI: 10.1088/1758-5090/ab06ea] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
While conventional material fabrication methods focus on form and strength to achieve function, the fabrication of material systems for emerging life science applications will need to satisfy a more subtle set of requirements. A common goal for biofabrication is to recapitulate complex biological contexts (e.g. tissue) for applications that range from animal-on-a-chip to regenerative medicine. In these cases, the material systems will need to: (i) present appropriate surface functionalities over a hierarchy of length scales (e.g. molecular features that enable cell adhesion and topographical features that guide differentiation); (ii) provide a suite of mechanobiological cues that promote the emergence of native-like tissue form and function; and (iii) organize structure to control cellular ingress and molecular transport, to enable the development of an interconnected cellular community that is engaged in cell signaling. And these requirements are not likely to be static but will vary over time and space, which will require capabilities of the material systems to dynamically respond, adapt, heal and reconfigure. Here, we review recent advances in the use of electrically based fabrication methods to build material systems from biological macromolecules (e.g. chitosan, alginate, collagen and silk). Electrical signals are especially convenient for fabrication because they can be controllably imposed to promote the electrophoresis, alignment, self-assembly and functionalization of macromolecules to generate hierarchically organized material systems. Importantly, this electrically based fabrication with biologically derived materials (i.e. electrobiofabrication) is complementary to existing methods (photolithographic and printing), and enables access to the biotechnology toolbox (e.g. enzymatic-assembly and protein engineering, and gene expression) to offer exquisite control of structure and function. We envision that electrobiofabrication will emerge as an important platform technology for organizing soft matter into dynamic material systems that mimic biology's complexity of structure and versatility of function.
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Affiliation(s)
- Jinyang Li
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, United States of America
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26
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Dalkıran B, Erden PE, Kaçar C, Kılıç E. Disposable Amperometric Biosensor Based on Poly‐L‐lysine and Fe
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NPs‐chitosan Composite for the Detection of Tyramine in Cheese. ELECTROANAL 2019. [DOI: 10.1002/elan.201900092] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Berna Dalkıran
- Department of Chemistry, Faculty of ScienceAnkara University Ankara TURKEY
| | - Pınar Esra Erden
- Department of Chemistry, Faculty of ScienceAnkara University Ankara TURKEY
- Department of Chemistry, Polatlı School of Science and ArtsAnkara Hacı Bayram Veli University Ankara TURKEY
| | - Ceren Kaçar
- Department of Chemistry, Faculty of ScienceAnkara University Ankara TURKEY
| | - Esma Kılıç
- Department of Chemistry, Faculty of ScienceAnkara University Ankara TURKEY
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27
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Antony R, Arun T, Manickam STD. A review on applications of chitosan-based Schiff bases. Int J Biol Macromol 2019; 129:615-633. [PMID: 30753877 DOI: 10.1016/j.ijbiomac.2019.02.047] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/01/2019] [Accepted: 02/07/2019] [Indexed: 02/07/2023]
Abstract
Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of other biopolymers. Using the versatility of these amino groups, various structural modifications have been accomplished on chitosan through certain chemical reactions. Chemical modification of chitosan via imine functionalization (RR'CNR″; R: alkyl/aryl, R': H/alkyl/aryl and R″: chitosan ring) is significant as it recommends the resultant chitosan-based Schiff bases (CSBs) for the important applications in the fields like biology, catalysis, sensors, water treatment, etc. CSBs are usually synthesized by the Schiff condensation reaction between chitosan's amino groups and carbonyl compounds with the removal of water molecules. In this review, we first introduce the available synthetic approaches for the preparation of CSBs. Then, we discuss the biological applications of CSBs including antimicrobial activity, anticancer activity, drug carrier ability, antioxidant activity and tissue engineering capacity. Successively, the applications of CSBs in other fields such as catalysis, adsorption and sensors are demonstrated.
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Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
| | - T Arun
- Department of Chemistry, Kamaraj College, Thoothukudi 628003, Tamil Nadu, India
| | - S Theodore David Manickam
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
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28
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Shang W, Liu Y, Kim E, Tsao CY, Payne GF, Bentley WE. Selective assembly and functionalization of miniaturized redox capacitor inside microdevices for microbial toxin and mammalian cell cytotoxicity analyses. LAB ON A CHIP 2018; 18:3578-3587. [PMID: 30351330 PMCID: PMC7046091 DOI: 10.1039/c8lc00583d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report a novel strategy for bridging information transfer between electronics and biological systems within microdevices. This strategy relies on our "electrobiofabrication" toolbox that uses electrode-induced signals to assemble biopolymer films at spatially defined sites and then electrochemically "activates" the films for signal processing capabilities. Compared to conventional electrode surface modification approaches, our signal-guided assembly and activation strategy provides on-demand electrode functionalization, and greatly simplifies microfluidic sensor design and fabrication. Specifically, a chitosan film is selectively localized in a microdevice and is covalently modified with phenolic species. The redox active properties of the phenolic species enable the film to transduce molecular to electronic signals (i.e., "molectronic"). The resulting "molectronic" sensors are shown to facilitate the electrochemical analysis in real time of biomolecules, including small molecules and enzymes, to cell-based measurements such as cytotoxicity. We believe this strategy provides an alternative, simple, and promising avenue for connecting electronics to biological systems within microfluidic platforms, and eventually will enrich our abilities to study biology in a variety of contexts.
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Affiliation(s)
- Wu Shang
- Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, College Park, MD 20742, USA.
| | - Yi Liu
- Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA
| | - Eunkyoung Kim
- Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA
| | - Chen-Yu Tsao
- Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, College Park, MD 20742, USA. and Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, College Park, MD 20742, USA. and Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, College Park, MD 20742, USA. and Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, MD 20742, USA
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29
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Liu L, Etienne M, Walcarius A. Scanning Gel Electrochemical Microscopy for Topography and Electrochemical Imaging. Anal Chem 2018; 90:8889-8895. [PMID: 30003777 DOI: 10.1021/acs.analchem.8b01011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Scanning electrochemical probe techniques have been widely applied for analyzing the local electrochemical activity of surfaces and interfaces. In this work, we develop a new concept of carrying out local electrochemical measurements by localizing both the electrode and the electrolyte. This is achieved through a gel probe, which is prepared by electrodepositing chitosan-gelatin gel on a microdisk electrode. It is positioned in contact with the sample surface by shear force feedback. The preliminary results indicate that the topography of the sample can be mapped by tapping the probe and recording the coordinates at a given normalized shear force signal, while the local electrochemical activity can be retrieved from local measurements with the probe touching the sample surface. The technique is denoted as scanning gel electrochemical microscopy. As compared with existing techniques, it has a major advantage of operating in air with the electrolyte immobilized in gel. This would prevent the spreading and leakage of solution on the sample surface and may lead to field applications.
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Affiliation(s)
- Liang Liu
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
| | - Mathieu Etienne
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
| | - Alain Walcarius
- Université de Lorraine, CNRS, Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) , UMR 7564 , Villers-lès-Nancy 54600 , France
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30
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Cao C, Kim E, Liu Y, Kang M, Li J, Yin JJ, Liu H, Qu X, Liu C, Bentley WE, Payne GF. Radical Scavenging Activities of Biomimetic Catechol-Chitosan Films. Biomacromolecules 2018; 19:3502-3514. [DOI: 10.1021/acs.biomac.8b00809] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chunhua Cao
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan, 430056, P R China
| | - Eunkyoung Kim
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
| | - Yi Liu
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
| | - Mijeong Kang
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
| | - Jinyang Li
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
| | - Jun-Jie Yin
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, Maryland 20740, United States
| | - Huan Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, P R China
| | - Xue Qu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, P R China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, P R China
| | - William E. Bentley
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
| | - Gregory F. Payne
- Institute for Bioscience and Biotechnology Research, University of Maryland, 4291 Fieldhouse Drive, Plant Sciences Building, College Park, Maryland 20742, United States
- Fischell Department of Bioengineering, University of Maryland, 8228 Paint Branch Drive, 2330 Jeong H. Kim Engineering Building, College Park, Maryland 20742, United States
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31
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El-Maiss J, Cuccarese M, Maerten C, Lupattelli P, Chiummiento L, Funicello M, Schaaf P, Jierry L, Boulmedais F. Mussel-Inspired Electro-Cross-Linking of Enzymes for the Development of Biosensors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18574-18584. [PMID: 29799715 DOI: 10.1021/acsami.8b04764] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In medical diagnosis and environmental monitoring, enzymatic biosensors are widely applied because of their high sensitivity, potential selectivity, and their possibility of miniaturization/automation. Enzyme immobilization is a critical process in the development of this type of biosensors with the necessity to avoid the denaturation of the enzymes and ensuring their accessibility toward the analyte. Electrodeposition of macromolecules is increasingly considered to be the most suitable method for the design of biosensors. Being simple and attractive, it finely controls the immobilization of enzymes on electrode surfaces, usually by entrapment or adsorption, using an electrical stimulus. Performed manually, enzyme immobilization by cross-linking prevents enzyme leaching and was never done using an electrochemical stimulus. In this work, we present a mussel-inspired electro-cross-linking process using glucose oxidase (GOX) and a homobifunctionalized catechol ethylene oxide spacer as a cross-linker in the presence of ferrocene methanol (FC) acting as a mediator of the buildup. Performed in one pot, the process takes place in three steps: (i) electro-oxidation of FC, by the application of cyclic voltammetry, creating a gradient of ferrocenium (FC+); (ii) oxidation of bis-catechol into a bis-quinone molecule by reaction with the electrogenerated FC+; and (iii) a chemical reaction of bis-quinone with free amino moieties of GOX through Michael addition and a Schiff's base condensation reaction. Employed for the design of a second-generation glucose biosensor using ferrocene methanol (FC) as a mediator, this new enzyme immobilization process presents several advantages. The cross-linked enzymatic film (i) is obtained in a one-pot process with nonmodified GOX, (ii) is strongly linked to the metallic electrode surface thanks to catechol moieties, and (iii) presents no leakage issues. The developed GOX/bis-catechol film shows a good response to glucose with a quite wide linear range from 1.0 to 12.5 mM as well as a good sensitivity (0.66 μA/mM cm2) and a high selectivity to glucose. These films would distinguish between healthy (3.8 and 6.5 mM) and hyperglycemic subjects (>7 mM). Finally, we show that this electro-cross-linking process allows the development of miniaturized biosensors through the functionalization of a single electrode out of a microelectrode array. Elegant and versatile, this electro-cross-linking process can also be used for the development of enzymatic biofuel cells.
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Affiliation(s)
- Janwa El-Maiss
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Marco Cuccarese
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Dipartimento di Scienze , Università degli Studi della Basilicata , 85100 Potenza , Italy
| | - Clément Maerten
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
| | - Paolo Lupattelli
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Dipartimento di Scienze , Università degli Studi della Basilicata , 85100 Potenza , Italy
| | - Lucia Chiummiento
- Dipartimento di Scienze , Università degli Studi della Basilicata , 85100 Potenza , Italy
| | - Maria Funicello
- Dipartimento di Scienze , Università degli Studi della Basilicata , 85100 Potenza , Italy
| | - Pierre Schaaf
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Ecole de Chimie, Polymères et Matériaux , Université de Strasbourg , 67087 Strasbourg , France
- University of Strasbourg Institute of Advanced Study , 67083 Strasbourg , France
- Biomatériaux et Bioingénierie , Institut National de la Santé et de la Recherche Médicale, UMR-S 1121 , 67087 Strasbourg , France
- Faculté de Chirurgie Dentaire, Fédération de Médecine Translationnelle de Strasbourg (FMTS), and Fédération des Matériaux et Nanoscience d'Alsace (FMNA) , Université de Strasbourg , 67000 Strasbourg , France
- International Center for Frontier Research in Chemistry , 67083 Strasbourg , France
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- Ecole de Chimie, Polymères et Matériaux , Université de Strasbourg , 67087 Strasbourg , France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron UPR 22 , 67034 Strasbourg , France
- University of Strasbourg Institute of Advanced Study , 67083 Strasbourg , France
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Clifford A, Pang X, Zhitomirsky I. Biomimetically modified chitosan for electrophoretic deposition of composites. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.02.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ahsan SM, Thomas M, Reddy KK, Sooraparaju SG, Asthana A, Bhatnagar I. Chitosan as biomaterial in drug delivery and tissue engineering. Int J Biol Macromol 2018; 110:97-109. [DOI: 10.1016/j.ijbiomac.2017.08.140] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/16/2017] [Accepted: 08/27/2017] [Indexed: 12/30/2022]
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Pradipkanti L, Satapathy DK. Water desorption from a confined biopolymer. SOFT MATTER 2018; 14:2163-2169. [PMID: 29492505 DOI: 10.1039/c7sm02332d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We study desorption of water from a confined biopolymer (chitosan thin films) by employing temperature dependent specular X-ray reflectivity and spectroscopic ellipsometry. The water desorption is found to occur via three distinct stages with significantly different desorption rates. The distinct rates of water desorption are attributed to the presence of different kinds of water with disparate mobilities inside the biopolymer film. We identify two characteristic temperatures (Tc1 and Tc2) at which the water desorption rate changes abruptly. Interestingly, the characteristic temperatures decrease with decreasing the film thickness. The thickness dependence of the characteristic temperature is interpreted in the context of a higher mobility of polymer chains at the free surface for polymers under one-dimensional confinement.
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Affiliation(s)
- L Pradipkanti
- Soft Materials Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai - 600036, India.
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35
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Xu H, Matysiak S. Effect of pH on chitosan hydrogel polymer network structure. Chem Commun (Camb) 2018; 53:7373-7376. [PMID: 28612070 DOI: 10.1039/c7cc01826f] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chitosan is a molecule that can form water-filled 3D polymer networks with a wide range of applications. A new coarse-grained model for chitosan hydrogel was developed to explore its pH-dependent self-assembly behavior and mechanical properties. Our results indicate that the underlying polymer physical crosslinking pattern induced by solution pH has a significant effect on hydrogel elastic moduli. With this model, we obtain pH-dependent structural and mechanical property changes in agreement with experimental observations, and provide a molecular mechanism behind the changes in polymer crosslinking patterns.
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Affiliation(s)
- Hongcheng Xu
- Biophysics Program, Institute of Physical Science and Technology, University of Maryland, College Park, Maryland, USA
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36
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Jia C, Jiang F, Hu P, Kuang Y, He S, Li T, Chen C, Murphy A, Yang C, Yao Y, Dai J, Raub CB, Luo X, Hu L. Anisotropic, Mesoporous Microfluidic Frameworks with Scalable, Aligned Cellulose Nanofibers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7362-7370. [PMID: 29400444 DOI: 10.1021/acsami.7b17764] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cellulose paper has been extensively used in microfluidic analytical devices because of its hydrophilic nature. However, cellulose is randomly packed in paper without any particular orientation or channels within the bulk of the material, necessitating a complicated design of hydrophilic microchannels to guide the liquid flow. Herein, we develop an anisotropic mesoporous microfluidic framework (named as white wood) with aligned cellulose nanofibers and inherent microchannels via a facile one-step delignification process from natural wood. The hydrophilic nature of the innate microchannels in white wood makes it ideal for application as a pump-free microfluidic chip, exhibiting a fast and anisotropic liquid and large solid particle (as demonstrated with carbon nanotubes) mass transport, with a high transport speed along the channel direction approximately five times faster than that perpendicular to the channel direction. The anisotropic mass transport is further exemplified in the fabrication of chitosan films with aligned microstructures and birefringence, formed by virtue of unidirectional capillary forces exerted by the microchannels. We envision that our anisotropic mesoporous framework can have great applications to pump-free microfluidics, and the simple preparation process will pave a new way for the development of microfluidic devices based on chemically modified wood.
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Affiliation(s)
- Chao Jia
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Feng Jiang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | | | - Yudi Kuang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Shuaiming He
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Tian Li
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Chaoji Chen
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Alan Murphy
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Chunpeng Yang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jiaqi Dai
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | | | | | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
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37
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Liu Y, Li J, Tschirhart T, Terrell JL, Kim E, Tsao C, Kelly DL, Bentley WE, Payne GF. Connecting Biology to Electronics: Molecular Communication via Redox Modality. Adv Healthc Mater 2017; 6. [PMID: 29045017 DOI: 10.1002/adhm.201700789] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/18/2017] [Indexed: 12/13/2022]
Abstract
Biology and electronics are both expert at for accessing, analyzing, and responding to information. Biology uses ions, small molecules, and macromolecules to receive, analyze, store, and transmit information, whereas electronic devices receive input in the form of electromagnetic radiation, process the information using electrons, and then transmit output as electromagnetic waves. Generating the capabilities to connect biology-electronic modalities offers exciting opportunities to shape the future of biosensors, point-of-care medicine, and wearable/implantable devices. Redox reactions offer unique opportunities for bio-device communication that spans the molecular modalities of biology and electrical modality of devices. Here, an approach to search for redox information through an interactive electrochemical probing that is analogous to sonar is adopted. The capabilities of this approach to access global chemical information as well as information of specific redox-active chemical entities are illustrated using recent examples. An example of the use of synthetic biology to recognize external molecular information, process this information through intracellular signal transduction pathways, and generate output responses that can be detected by electrical modalities is also provided. Finally, exciting results in the use of redox reactions to actuate biology are provided to illustrate that synthetic biology offers the potential to guide biological response through electrical cues.
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Affiliation(s)
- Yi Liu
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Jinyang Li
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Tanya Tschirhart
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Jessica L. Terrell
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Eunkyoung Kim
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Chen‐Yu Tsao
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Deanna L. Kelly
- Maryland Psychiatric Research Center University of Maryland School of Medicine Baltimore MD 21228 USA
| | - William E. Bentley
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Gregory F. Payne
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
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38
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Stoytcheva M, Zlatev R, Montero G, Velkova Z, Gochev V. Bi-enzyme Electrochemical Sensor for Selective Determination of Organophosphorus Pesticides with Phenolic Leaving Groups. ELECTROANAL 2017. [DOI: 10.1002/elan.201700380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Margarita Stoytcheva
- Universidad Autónoma de Baja California; Instituto de Ingeniería; Mexicali México
| | - Roumen Zlatev
- Universidad Autónoma de Baja California; Instituto de Ingeniería; Mexicali México
| | - Gisela Montero
- Universidad Autónoma de Baja California; Instituto de Ingeniería; Mexicali México
| | - Zdravka Velkova
- Medical University of Plovdiv; Faculty of Pharmacy, Dep. Chemical Sciences; Plovdiv Bulgaria
| | - Velizar Gochev
- Plovdiv University “P. Hilendarski”; Faculty of Biology, Dep. Biochemistry and Microbiology; Plovdiv Bulgaria
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39
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Dang NTT, Chau TTL, Duong HV, Le HT, Tran TTV, Le TQ, Vu TP, Nguyen CD, Nguyen LV, Nguyen TD. Water-soluble chitosan-derived sustainable materials: towards filaments, aerogels, microspheres, and plastics. SOFT MATTER 2017; 13:7292-7299. [PMID: 28951935 DOI: 10.1039/c7sm01292f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bioinspired materials have aroused great interest as their inherent biocompatible and structural characteristics have given rise to sustainable applications. In this work, we have reported the phase and morphology transformation of chitosan from crystalline nanofibrils into amorphous sheets for fabricating sustainable materials. Acetylation-induced aqueous dissolution of native chitosan nanofibrils affords water-soluble chitosan as a biopolymeric liquid. Water-soluble chitosan macromolecules self-aggregate into amorphous sheets on solidification, presenting an interesting way to inspire new structures of chitosan assemblies. Through control over gelation, lyophilization, and self-assembled confinement of water-soluble chitosan, we have fabricated novel chitosan materials including filaments, aerogels, microspheres, and plastics that are promising for sustainable use.
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Affiliation(s)
- Nhan Thi Thanh Dang
- Department of Chemistry, Hue University of Sciences, Hue University, 77 Nguyen Hue, Hue City, Vietnam
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40
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Mohammadi Z, Sharif Zak M, Majdi H, Seidi K, Barati M, Akbarzadeh A, Latifi AM. The effect of chrysin-loaded nanofiber on wound healing process in male rat. Chem Biol Drug Des 2017; 90:1106-1114. [DOI: 10.1111/cbdd.12996] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 02/25/2017] [Accepted: 04/03/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Zoheyr Mohammadi
- Applied Biotechnology Research Center; Baqiyatallah University of Medical Sciences; Tehran Iran
- Department of Medical Biotechnology; Faculty of Advanced Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Mohsen Sharif Zak
- Department of Clinical Biochemistry; Faculty of Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Hasan Majdi
- Department of Medical Nanotechnology; Faculty of Advanced Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Khaled Seidi
- Department of Medical Biotechnology; Faculty of Advanced Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Meisam Barati
- Student Research Committee; School of Nutrition; Tabriz University of Medical Sciences; Tabriz Iran
| | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology; Faculty of Advanced Medical Sciences; Tabriz University of Medical Sciences; Tabriz Iran
| | - Ali Mohammad Latifi
- Applied Biotechnology Research Center; Baqiyatallah University of Medical Sciences; Tehran Iran
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41
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Stoytcheva M, Zlatev R, Montero G, Velkova Z, Gochev V. A nanotechnological approach to biosensors sensitivity improvement: application to organophosphorus pesticides determination. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1389618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Margarita Stoytcheva
- Instituto De Ingeniería, Universidad Autónoma De Baja California, Mexicali, Mexico
| | - Roumen Zlatev
- Instituto De Ingeniería, Universidad Autónoma De Baja California, Mexicali, Mexico
| | - Gisela Montero
- Instituto De Ingeniería, Universidad Autónoma De Baja California, Mexicali, Mexico
| | - Zdravka Velkova
- Department of Chemical Sciences, Faculty of Pharmacy, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Velizar Gochev
- Department of Biochemistry and Microbiology, Faculty of Biology, Plovdiv University “P. Hilendarski”, Plovdiv, Bulgaria
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42
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Wang B, Koo B, Monbouquette HG. Enzyme Deposition by Polydimethylsiloxane Stamping for Biosensor Fabrication. ELECTROANAL 2017; 29:2300-2306. [PMID: 29628750 DOI: 10.1002/elan.201700302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
High-performance biosensors were fabricated by efficiently transferring enzyme onto Pt electrode surfaces using a polydimethylsiloxane (PDMS) stamp. Polypyrrole and Nafion were coated first on the electrode surface to act as permselective films for exclusion of both anionic and cationic electrooxidizable interfering compounds. A chitosan film then was electrochemically deposited to serve as an adhesive layer for enzyme immobilization. Glucose oxidase (GOx) was selected as a model enzyme for construction of a glucose biosensor, and a mixture of GOx and bovine serum albumin was stamped onto the chitosan-coated surface and subsequently crosslinked using glutaraldehyde vapor. For the optimized fabrication process, the biosensor exhibited excellent performance characteristics including a linear range up to 2 mM with sensitivity of 29.4 ± 1.3 μA mM-1 cm-2 and detection limit of 4.3 ± 1.7 μM (S/N = 3) as well as a rapid response time of ~2 s. In comparison to those previously described, this glucose biosensor exhibits an excellent combination of high sensitivity, low detection limit, rapid response time, and good selectivity. Thus, these results support the use of PDMS stamping as an effective enzyme deposition method for electroenzymatic biosensor fabrication, which may prove especially useful for the deposition of enzyme at selected sites on microelectrode array microprobes of the kind used for neuroscience research in vivo.
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Affiliation(s)
- Bo Wang
- Chemical and Biomolecular Engineering Department, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Bonhye Koo
- Chemical and Biomolecular Engineering Department, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Harold G Monbouquette
- Chemical and Biomolecular Engineering Department, University of California, Los Angeles, Los Angeles, CA 90095, USA
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43
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Wilson TA, Musameh M, Kyratzis IL, Zhang J, Bond AM, Hearn MTW. Enhanced NADH Oxidation Using Polytyramine/Carbon Nanotube Modified Electrodes for Ethanol Biosensing. ELECTROANAL 2017. [DOI: 10.1002/elan.201700146] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Thomas A. Wilson
- School of Chemistry; Monash University; Clayton VIC 3800 Australia
- CSIRO; Manufacturing Flagship; Clayton VIC 3168 Australia
| | | | | | - Jie Zhang
- School of Chemistry; Monash University; Clayton VIC 3800 Australia
| | - Alan M. Bond
- School of Chemistry; Monash University; Clayton VIC 3800 Australia
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44
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Winkler TE, Lederer SL, Kim E, Ben-Yoav H, Kelly DL, Payne GF, Ghodssi R. Molecular processes in an electrochemical clozapine sensor. Biointerphases 2017; 12:02B401. [PMID: 28460529 PMCID: PMC5552401 DOI: 10.1116/1.4982709] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 11/17/2022] Open
Abstract
Selectivity presents a crucial challenge in direct electrochemical sensing. One example is schizophrenia treatment monitoring of the redox-active antipsychotic clozapine. To accurately assess efficacy, differentiation from its metabolite norclozapine-similar in structure and redox potential-is critical. Here, the authors leverage biomaterials integration to study, and effect changes in, diffusion and electron transfer kinetics of these compounds. Specifically, the authors employ a catechol-modified chitosan film, which the authors have previously presented as the first electrochemical detection mechanism capable of quantifying clozapine directly in clinical serum. A key finding in our present work is differing dynamics between clozapine and norclozapine once the authors interface the electrodes with chitosan-based biomaterial films. These additional dimensions of redox information can thus enable selective sensing of largely analogous small molecules.
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Affiliation(s)
- Thomas E Winkler
- MEMS Sensors and Actuators Laboratory (MSAL), Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742 and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | - Sarah L Lederer
- MEMS Sensors and Actuators Laboratory (MSAL), Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742
| | - Eunkyoung Kim
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland 20742
| | - Hadar Ben-Yoav
- MEMS Sensors and Actuators Laboratory (MSAL), Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742
| | - Deanna L Kelly
- Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, Maryland 21228
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, Maryland 20742 and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
| | - Reza Ghodssi
- MEMS Sensors and Actuators Laboratory (MSAL), Institute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742 and Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742
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45
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Thakur H, Kaur N, Sabherwal P, Sareen D, Prabhakar N. Aptamer based voltammetric biosensor for the detection of Mycobacterium tuberculosis antigen MPT64. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2174-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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46
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Enhancing the in vitro anticancer activity of albendazole incorporated into chitosan-coated PLGA nanoparticles. Carbohydr Polym 2017; 159:39-47. [DOI: 10.1016/j.carbpol.2016.12.009] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/27/2016] [Accepted: 12/05/2016] [Indexed: 12/11/2022]
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47
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Li D, Guo L, Yang N, Zhang Y, Jin Z, Xu X. Evaluation of the degree of chitosan deacetylation via induced-electrical properties. RSC Adv 2017. [DOI: 10.1039/c7ra03545d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The properties and functionalities of chitosan are closely related to its degree of deacetylation (DD).
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Affiliation(s)
- Dandan Li
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
| | - Lunan Guo
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
| | - Na Yang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
| | - Yao Zhang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
| | - Xueming Xu
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- China
- School of Food Science and Technology
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48
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Jiang W, Li M, Chen Z, Leong KW. Cell-laden microfluidic microgels for tissue regeneration. LAB ON A CHIP 2016; 16:4482-4506. [PMID: 27797383 PMCID: PMC5110393 DOI: 10.1039/c6lc01193d] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Regeneration of diseased tissue is one of the foremost concerns for millions of patients who suffer from tissue damage each year. Local delivery of cell-laden hydrogels offers an attractive approach for tissue repair. However, due to the typical macroscopic size of these cell constructs, the encapsulated cells often suffer from poor nutrient exchange. These issues can be mitigated by incorporating cells into microscopic hydrogels, or microgels, whose large surface-to-volume ratio promotes efficient mass transport and enhanced cell-matrix interactions. Using microfluidic technology, monodisperse cell-laden microgels with tunable sizes can be generated in a high-throughput manner, making them useful building blocks that can be assembled into tissue constructs with spatially controlled physicochemical properties. In this review, we examine microfluidics-generated cell-laden microgels for tissue regeneration applications. We provide a brief overview of the common biomaterials, gelation mechanisms, and microfluidic device designs that are used to generate these microgels, and summarize the most recent works on how they are applied to tissue regeneration. Finally, we discuss future applications of microfluidic cell-laden microgels as well as existing challenges that should be resolved to stimulate their clinical application.
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Affiliation(s)
- Weiqian Jiang
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA.
| | - Mingqiang Li
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA.
| | - Zaozao Chen
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA.
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA.
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Peng Y, Gelder VV, Amaladoss A, Patel KH. Covalent Binding of Antibodies to Cellulose Paper Discs and Their Applications in Naked-eye Colorimetric Immunoassays. J Vis Exp 2016:54111. [PMID: 27805578 PMCID: PMC5092219 DOI: 10.3791/54111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
This report presents two methods for the covalent immobilization of capture antibodies on cellulose filter paper grade No. 1 (medium-flow filter paper) discs and grade No. 113 (fast-flow filter paper) discs. These cellulose paper discs were grafted with amine functional groups through a silane coupling technique before the antibodies were immobilized on them. Periodate oxidation and glutaraldehyde cross-linking methods were used to graft capture antibodies on the cellulose paper discs. In order to ensure the maximum binding capacity of the capture antibodies to their targets after immobilization, the effects of various concentrations of sodium periodate, glutaraldehyde, and capture antibodies on the surface of the paper discs were investigated. The antibodies that were coated on the amine-functionalized cellulose paper discs through a glutaraldehyde cross-linking agent showed enhanced binding activity to the target when compared to the periodate oxidation method. IgG (in mouse reference serum) was used as a reference target in this study to test the application of covalently immobilized antibodies through glutaraldehyde. A new paper-based, enzyme-linked immunosorbent assay (ELISA) was successfully developed and validated for the detection of IgG. This method does not require equipment, and it can detect 100 ng/ml of IgG. The fast-flow filter paper was more sensitive than the medium-flow filter paper. The incubation period of this assay was short and required small sample volumes. This naked-eye, colorimetric immunoassay can be extended to detect other targets that are identified with conventional ELISA.
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Affiliation(s)
- Yanfen Peng
- School of Applied Science, Temasek Polytechnic
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Fort CI, Ortiz R, Cotet LC, Danciu V, Popescu IC, Gorton L. Carbon Aerogel as Electrode Material for Improved Direct Electron Transfer in Biosensors Incorporating Cellobiose Dehydrogenase. ELECTROANAL 2016. [DOI: 10.1002/elan.201600219] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Carmen Ioana Fort
- Department of Chemical Engineering, Laboratory of Electrochemical Research and Nonconventional Materials; University Babes-Bolyai; Arany Janos 11 RO-400028 Cluj-Napoca Romania
| | - Roberto Ortiz
- Department of Analytical Chemistry/Biochemistry and Structural Biology; Lund University; P.O. Box 124 221 00 Lund Sweden
| | - Liviu Cosmin Cotet
- Department of Chemical Engineering, Laboratory of Electrochemical Research and Nonconventional Materials; University Babes-Bolyai; Arany Janos 11 RO-400028 Cluj-Napoca Romania
| | - Virginia Danciu
- Department of Chemical Engineering, Laboratory of Electrochemical Research and Nonconventional Materials; University Babes-Bolyai; Arany Janos 11 RO-400028 Cluj-Napoca Romania
| | - Ionel Catalin Popescu
- Department of Chemical Engineering, Laboratory of Electrochemical Research and Nonconventional Materials; University Babes-Bolyai; Arany Janos 11 RO-400028 Cluj-Napoca Romania
| | - Lo Gorton
- Department of Analytical Chemistry/Biochemistry and Structural Biology; Lund University; P.O. Box 124 221 00 Lund Sweden
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