1
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Suh SR, Lee JH, Go GM, Lee J, Kong H, Park EJ. Improving Recovery of Diatoms Bio-Silica Using Chemical Treatment with VAUS TM. RESEARCH SQUARE 2024:rs.3.rs-4709095. [PMID: 39149472 PMCID: PMC11326386 DOI: 10.21203/rs.3.rs-4709095/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
High-temperature baking is a typical method to remove organic matter from diatoms, but it's not suitable for bio-silica because of the high crystallinity. This study provides a method using the VAUS™ to remove organic matter from diatoms more quickly and biocompatibly. Organic matter was removed by using VAUS™, while NaOCl was utilized to remove the organic matter from the silicate frustule. The optimal frequency for organic matter removal was investigated to domestically produced M. nummuloides. The removal efficiency of TOC/TN was calculated and analyzed. The C and Si elements were analyzed in EDS, while visual confirmation of organic matter removal was analyzed by using XRD. TOC RE% at a frequency of 35kHz exhibited the highest value, indicating a statistically significant difference. XRD analysis demonstrated that the organic matter was almost removed using NaOCl compared to the high-temperature baked M. nummuloides. In the EDS analysis, there were significant differences in the C and Si elements with respect to frequency. This is very similar to the values from the positive control group, high-temperature baked M. nummuloides. This new procedure of applying periodic negative pressure to NaOCl pre-treatment is considered to be an effective method of chemically removing organic matter from diatoms.
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2
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Chen J, Lin KC, Prasad S, Schmidtke DW. Label free impedance based acetylcholinesterase enzymatic biosensors for the detection of acetylcholine. Biosens Bioelectron 2023; 235:115340. [PMID: 37216844 DOI: 10.1016/j.bios.2023.115340] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/08/2023] [Accepted: 04/18/2023] [Indexed: 05/24/2023]
Abstract
Realtime monitoring of neurotransmitters is of great interest for understanding their fundamental role in a wide range of biological processes in the central and peripheral nervous system, as well as their role, in several degenerative brain diseases. The measurement of acetylcholine in the brain is particularly challenging due to the complex environment of the brain and the low concentration and short lifetime of acetylcholine. In this paper, we demonstrated a novel, label-free biosensor for the detection of Ach using a single enzyme, acetylcholinesterase (ACHE), and electrochemical impedance spectroscopy (EIS). Acetylcholinesterase was covalently immobilized onto the surface of gold microelectrodes through an amine-reactive crosslinker dithiobis(succinimidyl propionate) (DSP). Passivation of the gold electrode with SuperBlock eliminated or reduced any non-specific response to other major interfering neurotransmitter molecules such as dopamine (DA), norepinephrine (NE) and epinephrine (EH). The sensors were able to detect acetylcholine over a wide concentration range (5.5-550 μM) in sample volumes as small as 300 μL by applying a 10 mV AC voltage at a frequency of 500 Hz. The sensors showed a linear relationship between Ach concentration and ΔZmod(R2 = 0.99) in PBS. The sensor responded to acetylcholine not only when evaluated in a simple buffer (PBS buffer) but in several more complex environments such as rat brain slurry and rat whole blood. The sensor remained responsive to acetylcholine after being implanted ex vivo in rat brain tissue. These results bode well for the future application of these novel sensors for real time in vivo monitoring of acetylcholine.
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Affiliation(s)
- Jie Chen
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd, Richardson, TX, 75083, USA
| | - Kai-Chun Lin
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd, Richardson, TX, 75083, USA
| | - Shalini Prasad
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd, Richardson, TX, 75083, USA.
| | - David W Schmidtke
- Department of Bioengineering, University of Texas at Dallas, 800 W. Campbell Rd, Richardson, TX, 75083, USA.
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3
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Nemati M, Farajzadeh MA, Afshar Mogaddam MR, Pourali A. Recent Advances in Impedimetric Biosensors Focusing on Myocardial Infarction Diagnosis. Crit Rev Anal Chem 2022:1-14. [PMID: 36576219 DOI: 10.1080/10408347.2022.2156771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Acute myocardial infarction is the most common cardiovascular disease and 85% of cardiovascular disease-related deaths are associated with it. The variation in the cardiac troponin concentration is considered as the most significant judge index for acute myocardial infarction diagnosis. Here, a comprehensive insights is given about the impedimetric methods as powerful electrochemical biosensing platforms for cardiac troponin evaluation. Focusing on nano materials, various impedimetric techniques including faradaic and non-faradaic techniques and different transducer modification techniques are addressed. The steps taken by each of the studied platforms to solve the existing problems are discussed and their advantages and drawbacks are highlighted. A glance at the provided table is given a mind into the features of each impedimetric sensors and their comparison are provided.
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Affiliation(s)
- Mahboob Nemati
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mir Ali Farajzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Engineering Faculty, Near East University, Nicosia, North Cyprus, Turkey
| | - Mohammad Reza Afshar Mogaddam
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Pourali
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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4
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Robin P, Gerber-Lemaire S. Design and Preparation of Sensing Surfaces for Capacitive Biodetection. BIOSENSORS 2022; 13:17. [PMID: 36671852 PMCID: PMC9856139 DOI: 10.3390/bios13010017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Despite their high sensitivity and their suitability for miniaturization, biosensors are still limited for clinical applications due to the lack of reproducibility and specificity of their detection performance. The design and preparation of sensing surfaces are suspected to be a cause of these limitations. Here, we first present an updated overview of the current state of use of capacitive biosensors in a medical context. Then, we summarize the encountered strategies for the fabrication of capacitive biosensing surfaces. Finally, we describe the characteristics which govern the performance of the sensing surfaces, along with recent developments that were suggested to overcome their main current limitations.
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5
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Hoyo J, Bassegoda A, Ferreres G, Hinojosa-Caballero D, Gutiérrez-Capitán M, Baldi A, Fernández-Sánchez C, Tzanov T. Rapid Colorimetric Detection of Wound Infection with a Fluidic Paper Device. Int J Mol Sci 2022; 23:ijms23169129. [PMID: 36012396 PMCID: PMC9408953 DOI: 10.3390/ijms23169129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 12/02/2022] Open
Abstract
Current procedures for the assessment of chronic wound infection are time-consuming and require complex instruments and trained personnel. The incidence of chronic wounds worldwide, and the associated economic burden, urge for simple and cheap point-of-care testing (PoCT) devices for fast on-site diagnosis to enable appropriate early treatment. The enzyme myeloperoxidase (MPO), whose activity in infected wounds is about ten times higher than in non-infected wounds, appears to be a suitable biomarker for wound infection diagnosis. Herein, we develop a single-component foldable paper-based device for the detection of MPO in wound fluids. The analyte detection is achieved in two steps: (i) selective immunocapture of MPO, and (ii) reaction of a specific dye with the captured MPO, yielding a purple color with increasing intensity as a function of the MPO activity in infected wounds in the range of 20–85 U/mL. Ex vivo experiments with wound fluids validated the analytic efficiency of the paper-based device, and the results strongly correlate with a spectrophotometric assay.
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Affiliation(s)
- Javier Hoyo
- Grup de Biotecnologia Molecular i Industrial, Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
| | - Arnau Bassegoda
- Grup de Biotecnologia Molecular i Industrial, Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
| | - Guillem Ferreres
- Grup de Biotecnologia Molecular i Industrial, Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
| | - Dolores Hinojosa-Caballero
- Unitat de Ferides Complexes, Consorci Sanitari de Terrassa, Hospital de Terrassa, Ctra. Torrebonica, s/n, 08227 Terrassa, Spain
| | | | - Antoni Baldi
- Instituto de Microelectrónica de Barcelona (IMB-CNM), CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - César Fernández-Sánchez
- Instituto de Microelectrónica de Barcelona (IMB-CNM), CSIC, Campus UAB, 08193 Bellaterra, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial, Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
- Correspondence:
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6
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Saoud HAA, Sprynskyy M, Pashaei R, Kawalec M, Pomastowski P, Buszewski B. Diatom biosilica: Source, Physical-chemical characterization, modification, and application. J Sep Sci 2022; 45:3362-3376. [PMID: 35652201 DOI: 10.1002/jssc.202100981] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 05/05/2022] [Accepted: 05/26/2022] [Indexed: 11/05/2022]
Abstract
Growing research interest in the use of diatomaceous biosilica results from its unique properties, such as chemical inertness, biocompatibility, high mechanical and thermal stability, low thermal conductivity, homogeneous porous structure with a large specific surface. Unlike the production of synthetic silica materials with a micro- or nano-scale structure in an expensive conventional manufacturing process, diatomaceous biosilica can be produced in huge quantities without significant expenditure of energy and materials. This fact makes it an unlimited, easily accessible, natural, inexpensive, and renewable material. Moreover, the production of bio-silica is extremely environmentally friendly, as there is essentially no toxic waste, and the process does not require more energy compared to the production of synthetic silica-based materials. For all these reasons, diatoms are an intriguing alternative to synthetic materials in developing cheap biomaterials used in a different branch of industry. In review has been reported the state-of-art of biosilica materials, their characteristics approaches, and possible way of application. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hussam A Al Saoud
- Bialystok University of Technology, Faculty of mechanical engineering, Department of Materials Engineering and Production, Wiejska 45C, Bialystok, 15-351, Poland.,Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland
| | - Myroslav Sprynskyy
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland
| | - Reza Pashaei
- Marine Research Institute of Klaipeda University, H. Manto 84, Klaipeda, LT-9229, Lithuania
| | - Michał Kawalec
- Bialystok University of Technology, Faculty of mechanical engineering, Department of Materials Engineering and Production, Wiejska 45C, Bialystok, 15-351, Poland
| | - Paweł Pomastowski
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Wileńska 4, Toruń, 87-100, Poland
| | - Boguslaw Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun, 87-100, Poland.,Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, Wileńska 4, Toruń, 87-100, Poland
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7
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Zhang Y, Liu Y. A Digital Microfluidic Device Integrated with Electrochemical Impedance Spectroscopy for Cell-Based Immunoassay. BIOSENSORS 2022; 12:330. [PMID: 35624631 PMCID: PMC9138827 DOI: 10.3390/bios12050330] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 05/31/2023]
Abstract
The dynamic immune response to various diseases and therapies has been considered a promising indicator of disease status and therapeutic effectiveness. For instance, the human peripheral blood mononuclear cell (PBMC), as a major player in the immune system, is an important index to indicate a patient's immune function. Therefore, establishing a simple yet sensitive tool that can frequently assess the immune system during the course of disease and treatment is of great importance. This study introduced an integrated system that includes an electrochemical impedance spectroscope (EIS)-based biosensor in a digital microfluidic (DMF) device, to quantify the PBMC abundance with minimally trained hands. Moreover, we exploited the unique droplet manipulation feature of the DMF platform and conducted a dynamic cell capture assay, which enhanced the detection signal by 2.4-fold. This integrated system was able to detect as few as 104 PBMCs per mL, presenting suitable sensitivity to quantify PBMCs. This integrated system is easy-to-operate and sensitive, and therefore holds great potential as a powerful tool to profile immune-mediated therapeutic responses in a timely manner, which can be further evolved as a point-of-care diagnostic device to conduct near-patient tests from blood samples.
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Affiliation(s)
- Yuqian Zhang
- Department of Surgery, Division of Surgical Research, Mayo Clinic, Rochester, MN 55905, USA;
- Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Yuguang Liu
- Department of Surgery, Division of Surgical Research, Mayo Clinic, Rochester, MN 55905, USA;
- Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
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8
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Hoyo J, Bassegoda A, Tzanov T. Electrochemical quantification of biomarker myeloperoxidase. Z NATURFORSCH C 2022; 77:297-302. [PMID: 35191282 DOI: 10.1515/znc-2021-0274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/04/2022] [Indexed: 01/15/2023]
Abstract
Point of care testing (PoCT) devices permit precise and rapid detection of disease-related biomarkers contributing to an early disease diagnosis and administration of an appropriate treatment. The enzyme myeloperoxidase (MPO) is a relevant biomarker for infection and inflammation events assessment; however its direct electrochemical quantification is hindered by the limited accessibility to the iron atom in its active center. Herein, such hindrance of the MPO biomolecule is overcome using the redox mediator 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS). The charge involved in the electrochemical reduction of the MPO-oxidized ABTS is correlated with the concentration of MPO. The use of ABTS allowed for the electrochemical assessment of a wide range of MPO concentrations (10-1000 nM) including those reported for wound infections, chronic obstructive pulmonary disease and early adverse cardiac events. The developed electroanalytical approach is rapid and inexpensive, and thus suitable for implementation in PoCT devices.
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Affiliation(s)
- Javier Hoyo
- Department of Chemical Engineering, Grup de Biotecnologia Molecular i Industrial, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222, Terrasa, Spain
- Department of Physical-Chemistry, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Arnau Bassegoda
- Department of Chemical Engineering, Grup de Biotecnologia Molecular i Industrial, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222, Terrasa, Spain
| | - Tzanko Tzanov
- Department of Chemical Engineering, Grup de Biotecnologia Molecular i Industrial, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222, Terrasa, Spain
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9
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Envisaging marine diatom Thalassiosira weissflogii as a "SMART" drug delivery system for insoluble drugs. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Rabiee N, Khatami M, Jamalipour Soufi G, Fatahi Y, Iravani S, Varma RS. Diatoms with Invaluable Applications in Nanotechnology, Biotechnology, and Biomedicine: Recent Advances. ACS Biomater Sci Eng 2021; 7:3053-3068. [PMID: 34152742 DOI: 10.1021/acsbiomaterials.1c00475] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Diatoms are unicellular microalga found in soil and almost every aquatic environment (marine and fresh water). Biogenic silica and diatoms are attractive for biotechnological and industrial applications, especially in the field of biomedicine, industrial/synthetic manufacturing processes, and biomedical/pharmaceutical sciences. Deposition of silica by diatoms allows them to create micro- or nanoscale structures which may be utilized in nanomedicine and especially in drug/gene delivery. Diatoms with their unique architectures, good thermal stability, suitable surface area, simple chemical functionalization/modification procedures, ease of genetic manipulations, optical/photonic characteristics, mechanical resistance, and eco-friendliness, can be utilized as smart delivery platforms. The micro- to nanoscale properties of the diatom frustules have garnered a great deal of attention for their application in diverse areas of nanotechnology and biotechnology, such as bioimaging/biosensing, biosensors, drug/gene delivery, photodynamic therapy, microfluidics, biophotonics, solar cells, and molecular filtrations. Additionally, the genetically engineered diatom microalgae-derived nanoporous biosilica have enabled the targeted anticancer drug delivery to neuroblastoma and B-lymphoma cells as well as the mouse xenograft model of neuroblastoma. In this perspective, current trends and recent advances related to the applications of diatoms for the synthesis of nanoparticles, gene/drug delivery, biosensing determinations, biofuel production, and remediation of heavy metals are deliberated, including the underlying significant challenges and future perspectives.
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Affiliation(s)
- Navid Rabiee
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Mehrdad Khatami
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran.,Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University in Olomouc, Slechtitelu 27, 783 71, Olomouc, Czech Republic
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11
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Ganguly A, Lin KC, Muthukumar S, Nagaraj VJ, Prasad S. Label-Free Protein Glycosylation Analysis Using NanoMonitor-An Ultrasensitive Electrochemical Biosensor. Curr Protoc 2021; 1:e150. [PMID: 34101384 DOI: 10.1002/cpz1.150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Glycans (oligosaccharide chains attached to glycoproteins) are a promising class of biomarkers, found in body fluids such as serum, saliva, urine, etc., that can be used for the diagnosis of disease conditions. Subtle changes in glycans resulting from altered glycosylation machinery have been reported during various diseases, including carcinogenesis. In this article, we detail protocols for the rapid, label-free analysis of glycans using a previously developed highly sensitive and selective electrochemical impedance spectroscopy-based biosensing diagnostic platform called "NanoMonitor." The glycosensor operation is based on the specific affinity capture of the target glycans on the sensor surface by glycan-binding proteins known as lectins. This glycan-lectin binding activity modulates the impedance of the electrical double layer at the buffer-electrode interface. Protocols for the preparation of glycoprotein samples and glycosylation analysis using NanoMonitor and lectin-based ELISA are described here. The data obtained using these protocols show that NanoMonitor is capable of distinguishing between glycoform variants of the glycoprotein fetuin and glycoproteins derived from cultured human pancreatic cancer cells with high sensitivity (orders of magnitude higher than lectin-based ELISA) and selectivity. The results obtained indicate that NanoMonitor protocols can be further developed to enable use of NanoMonitor as a handheld electronic biosensor device for routine multiplexed detection of glycan biomarkers from clinical samples. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Preparing the NanoMonitor surface for glycan biosensing Support Protocol: Synthesis of glycoform variants of fetuin Basic Protocol 2: Performing Electrochemical Impedance Spectroscopy (EIS) for analyzing glycoprotein structures.
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Affiliation(s)
- Antra Ganguly
- Biomedical Microdevices and Nanotechnology Laboratory, Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | - Kai-Chun Lin
- Biomedical Microdevices and Nanotechnology Laboratory, Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | | | - Vinay J Nagaraj
- Biomedical Microdevices and Nanotechnology Laboratory, Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | - Shalini Prasad
- Biomedical Microdevices and Nanotechnology Laboratory, Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
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12
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Mini-Review: Potential of Diatom-Derived Silica for Biomedical Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diatoms are unicellular eukaryotic microalgae widely distributed in aquatic environments, possessing a porous silica cell wall known as frustule. Diatom frustules are considered as a sustainable source for several industrial applications because of their high biocompatibility and the easiness of surface functionalisation, which make frustules suitable for regenerative medicine and as drug carriers. Frustules are made of hydrated silica, and can be extracted and purified both from living and fossil diatoms using acid treatments or high temperatures. Biosilica frustules have proved to be suitable for biomedical applications, but, unfortunately, they are not officially recognised as safe by governmental food and medical agencies yet. In the present review, we highlight the frustule formation process, the most common purification techniques, as well as advantages and bottlenecks related to the employment of diatom-derived silica for medical purposes, suggesting possible solutions for a large-scale biosilica production.
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13
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Nanoparticle-based 3D membrane for impedimetric biosensor applications. Bioelectrochemistry 2020; 136:107593. [DOI: 10.1016/j.bioelechem.2020.107593] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/27/2020] [Accepted: 06/28/2020] [Indexed: 11/21/2022]
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14
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Panahi Z, Merrill MA, Halpern JM. Reusable Cyclodextrin-Based Electrochemical Platform for Detection of trans-Resveratrol. ACS APPLIED POLYMER MATERIALS 2020; 2:5086-5093. [PMID: 34651131 PMCID: PMC8513772 DOI: 10.1021/acsapm.0c00866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A reusable sensor architecture, through the combination of self-assembled monolayers and cyclodextrin supramolecular interactions, is demonstrated for class recognition of hydrophobic analytes demonstrated with trans-resveratrol. The reloadable sensor is based on reversible immobilization of α-cyclodextrin on polyethylene glycol surface. α-cyclodextrins complexes with polyethylene glycols and causes the polymer chains to change their surface configuration. The reproducibility and stability of the sur-face, in the detection of nanomolar concentrations of trans-resveratrol, can be demonstrated by electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy, and Attenuated total reflectance-Fourier transform infrared spectroscopy. We propose that during sensor operation, α-cyclodextrin decouples from the poly-ethylene glycol surface to complex with trans-resveratrol in solution, and after use, the surface regeneration is conducted with a simple α-cyclodextrin soak. To test the nonspecific response, the sensor was also tested with trans-resveratrol spiked human urine.
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15
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Recent advances of electrochemical and optical biosensors for detection of C-reactive protein as a major inflammatory biomarker. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105287] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Review on electrochemical sensing strategies for C-reactive protein and cardiac troponin I detection. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104857] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Yousefi F, Movahedpour A, Shabaninejad Z, Ghasemi Y, Rabbani S, Sobnani-Nasab A, Mohammadi S, Hajimoradi B, Rezaei S, Savardashtaki A, Mazoochi M, Mirzaei H. Electrochemical-Based Biosensors: New Diagnosis Platforms for Cardiovascular Disease. Curr Med Chem 2020; 27:2550-2575. [DOI: 10.2174/0929867326666191024114207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 09/05/2019] [Accepted: 09/12/2019] [Indexed: 02/05/2023]
Abstract
One of the major reasons for mortality throughout the world is cardiovascular diseases.
Therefore, bio-markers of cardiovascular disease are of high importance to diagnose and manage procedure.
Detecting biomarkers provided a promising procedure in developing bio-sensors. Fast, selective,
portable, accurate, inexpensive, and sensitive biomarker sensing instruments will be necessary for
detecting and predicting diseases. One of the cardiac biomarkers may be ordered as C-reactive proteins,
lipoprotein-linked phospho-lipase, troponin I or T, myoglobin, interleukin-6, interleukin-1, tumor necrosis
factor alpha, LDL and myeloperoxidase. The biomarkers are applied to anticipate cardio-vascular
illnesses. Initial diagnoses of these diseases are possible by several techniques; however, they are laborious
and need costly apparatus. Current researches designed various bio-sensors for resolving the respective
issues. Electrochemical instruments and the proposed bio-sensors are preferred over other
methods due to its inexpensiveness, mobility, reliability, repeatability. The present review comprehensively
dealt with detecting biomarkers of cardiovascular disease through electro-chemical techniques.
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Affiliation(s)
- Fatemeh Yousefi
- Department of Biological Sciences, Faculty of Genetics, Tarbiat Modares University, Tehran, Iran
| | - Ahmad Movahedpour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Shabaninejad
- Department of Biological Sciences, Faculty of Nanotechnology, Tarbiat Modares University, Tehran, Iran
| | - Younes Ghasemi
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahram Rabbani
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Sobnani-Nasab
- Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Soheila Mohammadi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Behzad Hajimoradi
- Cardiology Department of Shohaday-e-Tajrish Hospital Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Samaneh Rezaei
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Mazoochi
- Department of Cardiology, Cardiac Electrophysiology Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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18
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Mintah Churcher NK, Upasham S, Rice P, Bhadsavle S, Prasad S. Development of a flexible, sweat-based neuropeptide Y detection platform. RSC Adv 2020; 10:23173-23186. [PMID: 35520310 PMCID: PMC9054693 DOI: 10.1039/d0ra03729j] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/05/2020] [Indexed: 12/14/2022] Open
Abstract
Neuropeptide Y (NPY) biomarker levels have a close association with the diagnosis of Major Depression Disorder (MDD) and anxiety disorders. Quantifying NPY in correlation to self-reported symptoms will be an important measure to ensure a relatively uniform diagnosis and help with disease prognosis of these disorders. The work presented is a novel, passive eccrine sweat based, electrochemical detection platform for quantification of NPY biomarker levels. The paper offers a comparison between non-porous and porous sensor platforms using various electrochemical detection techniques. This work uses a novel strategy towards designing an optimal nanobioelectronic interface to measure NPY. The portability aspect of this detection platform is discussed by the demonstration a novel, portable EmStat Pico based electronic platform. The detection limit of the sensor is 10 pg mL−1 and its range is 20–500 pg mL−1. The NPY detection platform is envisioned to be a wearable point-of need monitoring system for management of chronic anxiety disorders and MDD. Novel wearable NPY biomarker tracking system, envisioned to be a chronic anxiety and MDD management platform via self-monitoring.![]()
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Affiliation(s)
| | - Sayali Upasham
- Department of Bioengineering
- University of Texas at Dallas
- Richardson
- USA
| | - Paul Rice
- Department of Bioengineering
- University of Texas at Dallas
- Richardson
- USA
| | - Serena Bhadsavle
- Department of Bioengineering
- University of Texas at Dallas
- Richardson
- USA
| | - Shalini Prasad
- Department of Bioengineering
- University of Texas at Dallas
- Richardson
- USA
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19
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Grasso G, Zane D, Dragone R. Microbial Nanotechnology: Challenges and Prospects for Green Biocatalytic Synthesis of Nanoscale Materials for Sensoristic and Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 10:E11. [PMID: 31861471 PMCID: PMC7023511 DOI: 10.3390/nano10010011] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 01/06/2023]
Abstract
Nanomaterials are increasingly being used in new products and devices with a great impact on different fields from sensoristics to biomedicine. Biosynthesis of nanomaterials by microorganisms is recently attracting interest as a new, exciting approach towards the development of 'greener' nanomanufacturing compared to traditional chemical and physical approaches. This review provides an insight about microbial biosynthesis of nanomaterials by bacteria, yeast, molds, and microalgae for the manufacturing of sensoristic devices and therapeutic/diagnostic applications. The last ten-year literature was selected, focusing on scientific works where aspects like biosynthesis features, characterization, and applications have been described. The knowledge, challenges, and potentiality of microbial-mediated biosynthesis was also described. Bacteria and microalgae are the main microorganism used for nanobiosynthesis, principally for biomedical applications. Some bacteria and microalgae have showed the ability to synthetize unique nanostructures: bacterial nanocellulose, exopolysaccharides, bacterial nanowires, and biomineralized nanoscale materials (magnetosomes, frustules, and coccoliths). Yeasts and molds are characterized by extracellular synthesis, advantageous for possible reuse of cell cultures and reduced purification processes of nanomaterials. The intrinsic variability of the microbiological systems requires a greater protocols standardization to obtain nanomaterials with increasingly uniform and reproducible chemical-physical characteristics. A deeper knowledge about biosynthetic pathways and the opportunities from genetic engineering are stimulating the research towards a breakthrough development of microbial-based nanosynthesis for the future scaling-up and possible industrial exploitation of these promising 'nanofactories'.
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Affiliation(s)
- Gerardo Grasso
- Consiglio Nazionale delle Ricerche—Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Chimica, ‘Sapienza’ Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy (R.D.)
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20
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Park YS, Kim G, Lee JS. Anisotropic Silicification of Nanostructured Surfaces by Local Liquid-Phase Deposition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12656-12664. [PMID: 31490695 DOI: 10.1021/acs.langmuir.9b01998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exploration of the bioinspired silicification of artificial scaffolds is crucial to understanding and engineering the hierarchically complex and elaborate three-dimensional (3D) frustules of diatoms, which have high porosity and mechanical stability with related gas diffusion and storage properties. Herein, we report on the bioinspired silicification of the nanostructured surfaces of hexagonally close-packed silica bead (hc-SB) arrays using a liquid-phase deposition (LPD) method. This process, governed by the kinetics of silicification, was controlled using the concentration of the reactants and the reaction temperature and monitored in real time using a quartz-crystal microbalance, which allowed the investigation of the silicification on the surface during the LPD reaction. These heterogeneous LPD reactions on hc-SB arrays were optimized to mimic natural 3D hierarchical structures. Anisotropic silicification of the nanostructures occurred owing to differences in the energy and local concentration of silicic acid on the nanostructured surface. A 3D hierarchical pore network was realized via a heterogeneous LPD reaction by controlling the size, location, and arrangement of the SBs. We believe that our silicification process on nanostructured surfaces can lead to great improvements in the bioinspired morphogenesis-based engineering of 3D hierarchical structures.
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Affiliation(s)
- Yi-Seul Park
- Materials and Life Science Research Division , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
- Department of Chemistry , Sookmyung Women's University , Seoul 04310 , Republic of Korea
| | - Gyuri Kim
- Department of Chemistry , Sookmyung Women's University , Seoul 04310 , Republic of Korea
| | - Jin Seok Lee
- Department of Chemistry , Sookmyung Women's University , Seoul 04310 , Republic of Korea
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21
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Amperometric sandwich immunoassay for determination of myeloperoxidase by using gold nanoparticles encapsulated in graphitized mesoporous carbon. Mikrochim Acta 2019; 186:262. [PMID: 30929076 DOI: 10.1007/s00604-019-3359-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/08/2019] [Indexed: 02/01/2023]
Abstract
An ultrasensitive sandwich-type electrochemical immunosensor was developed for the amperometric determination of serum myeloperoxidase (MPO). The method is making use of (a) gold nanoparticles encapsulated in graphitized mesoporous carbons (AuNP@GMC); and (b) horseradish peroxidase (HRP) labeled secondary antibody (HRP@Ab2) immobilized on AuNP@GMC. MPO capture antibody (Ab1) was immobilized on the electrode modified with an AuNP-graphene oxide nanocomposite. The sandwich immunoreaction leads to the formation of the complex composed of Ab1, MPO, and HRP@Ab2. An amplified electrochemical signal is produced by electrocatalytic reduction of H2O2 (at a typical voltage of -0.18 V vs. Ag/AgCl) in the presence of enzymatically oxidized thionine. The peak current of thionine was measured using differential pulse voltammetry. Under optimized steady-state conditions, the reduction peak increases in the 1 to 300 pg.mL-1 MPO concentration range, and the detection limit is 0.1 pg.mL-1 (at S/N = 3). Graphical abstract Schematic presentation of AuNP-GO based sandwich-type electrochemical immunoassay for the determination of myeloperoxidase by using gold nanoparticles encapsulated in graphitized mesoporous carbons (AuNP@GMC) as a carrier for horseradish peroxidase (HRP) labeled secondary antibody (HRP@Ab2).
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22
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Bekhit M, Gorski W. Electrochemical Assays and Immunoassays of the Myeloperoxidase/SCN -/H 2O 2 System. Anal Chem 2019; 91:3163-3169. [PMID: 30689356 DOI: 10.1021/acs.analchem.8b05855] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Strategies to detect and characterize myeloperoxidase (MPO) are needed, given that this "split personality" enzyme kills harmful microorganisms but also damages a host tissue. Here, we describe electrochemical approaches to measure MPO by using the pseudohalogenation (MPO/SCN-/H2O2) and catalase-like (MPO/H2O2) cycles. Their kinetics were determined by monitoring the consumption of H2O2 with a nitrogen-doped carbon nanotubes (N-CNT) electrode, which could detect 0.50 μM H2O2 at -0.20 V. The unique design of internally calibrated electrochemical continuous enzyme assay (ICECEA) and electrode stability allowed use of one N-CNT electrode for over half a year to reliably determine MPO. The kinetic measurements showed that (a) SCN- did not affect the affinity of MPO for H2O2, (b) catalase-like cycle was slower, and (c) MPO retained enzymatically active conformation after complexation with its antibody Ab both in a solution and on the surface of an antibody dipstick (d/Ab). The homogeneous assays could detect 5.2 μg L-1 MPO (35 pM) via a faster cycle. The heterogeneous immunoassays with the capture of MPO on d/Ab could detect 60 μg L-1, which was suitable for the accurate detection of MPO in human saliva (101% recovery). Replacing a detection antibody of ELISA with ICECEA as a signal transducer for immunoassays offers a rapid method for the selective determination of enzymes; for example, time of MPO quantification was cut from 3-4 h (sandwich ELISA) to ∼20 min (ICECEA-dipstick).
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Affiliation(s)
- Michael Bekhit
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
| | - Waldemar Gorski
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
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23
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Munawar A, Ong Y, Schirhagl R, Tahir MA, Khan WS, Bajwa SZ. Nanosensors for diagnosis with optical, electric and mechanical transducers. RSC Adv 2019; 9:6793-6803. [PMID: 35518460 PMCID: PMC9061101 DOI: 10.1039/c8ra10144b] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 01/31/2019] [Indexed: 12/20/2022] Open
Abstract
Nanosensors with high sensitivity utilize electrical, optical, and acoustic properties to improve the detection limits of analytes.
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Affiliation(s)
- Anam Munawar
- National Institute for Biotechnology and Genetic Engineering (NIBGE)
- Faisalabad
- Pakistan
- University of Groningen
- University Medical Center Groningen
| | - Yori Ong
- University of Groningen
- University Medical Center Groningen
- Department of Biomedical Engineering
- 9712AW Groningen
- Netherlands
| | - Romana Schirhagl
- University of Groningen
- University Medical Center Groningen
- Department of Biomedical Engineering
- 9712AW Groningen
- Netherlands
| | - Muhammad Ali Tahir
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai
- Peoples' Republic of China
| | - Waheed S. Khan
- National Institute for Biotechnology and Genetic Engineering (NIBGE)
- Faisalabad
- Pakistan
- Nanobiomaterials Group
- Ningbo Institute of Materials Technology and Engineering (NIMTE)
| | - Sadia Z. Bajwa
- National Institute for Biotechnology and Genetic Engineering (NIBGE)
- Faisalabad
- Pakistan
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24
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Maher S, Kumeria T, Aw MS, Losic D. Diatom Silica for Biomedical Applications: Recent Progress and Advances. Adv Healthc Mater 2018; 7:e1800552. [PMID: 30118185 DOI: 10.1002/adhm.201800552] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 07/12/2018] [Indexed: 12/30/2022]
Abstract
Diatoms are unicellular photosynthetic algae enclosed in porous 3D nanopatterned silica enclosures called "frustules." The diatom frustules are made from biosilica self-assembled into intricate porous shells that feature unique properties including high specific surface area, biocompatibility, tailorable surface chemistry, thermal stability, and high mechanical and chemical resistance. The ability to cultivate diatoms in artificial environments and their abundant availability of diatom frustules as mineable fossilized mineral deposits (diatomite or diatomaceous earth; DE) make diatom silica a promising natural alternative to synthetic porous silica for a broad range of biomedical, environmental, agricultural, and energy applications. This review article provides a comprehensive and current account of the use of natural DE silica materials in biomedical applications focused mainly on drug delivery with some highlights on biosensing, tissue engineering, and clotting agents. The article also covers some basic physical and chemical aspects of DE material such as purification, surface chemical functionalization, biocompatibility, and cellular uptake that are critical for the development of an efficient drug carrier.
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Affiliation(s)
- Shaheer Maher
- School of Chemical Engineering The University of Adelaide Engineering North Building 5005 Adelaide Australia
| | - Tushar Kumeria
- School of Pharmacy The University of Queensland Pharmacy Australia Center of Excellence Building Woolloongabba Queensland 4102 Australia
| | - Moom Sin Aw
- School of Chemical Engineering The University of Adelaide Engineering North Building 5005 Adelaide Australia
| | - Dusan Losic
- School of Chemical Engineering The University of Adelaide Engineering North Building 5005 Adelaide Australia
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25
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Farzin L, Shamsipur M, Samandari L, Sheibani S. Recent advances in designing nanomaterial based biointerfaces for electrochemical biosensing cardiovascular biomarkers. J Pharm Biomed Anal 2018; 161:344-376. [PMID: 30205301 DOI: 10.1016/j.jpba.2018.08.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 02/06/2023]
Abstract
Early diagnosis of cardiovascular disease (CVD) is critically important for successful treatment and recovery of patients. At present, detection of CVD at early stages of its progression becomes a major issue for world health. The nanoscale electrochemical biosensors exhibit diverse outstanding properties, rendering them extremely suitable for the determination of CVD biomarkers at very low concentrations in biological fluids. The unique advantages offered by electrochemical biosensors in terms of sensitivity and stability imparted by nanostructuring the electrode surface together with high affinity and selectivity of bioreceptors have led to the development of new electrochemical biosensing strategies that have introduced as interesting alternatives to conventional methodologies for clinical diagnostics of CVD. This review provides an updated overview of selected examples during the period 2005-2018 involving electrochemical biosensing approaches and signal amplification strategies based on nanomaterials, which have been applied for determination of CVD biomarkers. The studied CVD biomarkers include AXL receptor tyrosine kinase, apolipoproteins, cholesterol, C-reactive protein (CRP), D-dimer, fibrinogen (Fib), glucose, insulin, interleukins, lipoproteins, myoglobin, N-terminal pro-B-type natriuretic peptide (BNP), tumor necrosis factor alpha (TNF-α) and troponins (Tns) on electrochemical transduction format. Identification of new specific CVD biomarkers, multiplex bioassay for the simultaneous determination of biomarkers, emergence of microfluidic biosensors, real-time analysis of biomarkers and point of care validation with high sensitivity and selectivity are the major challenges for future research.
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Affiliation(s)
- Leila Farzin
- Radiation Application Research School, Nuclear Science and Technology Research Institute, 11365-3486, Tehran, Iran.
| | - Mojtaba Shamsipur
- Department of Chemistry, Razi University, 67149-67346, Kermanshah, Iran.
| | - Leila Samandari
- Department of Chemistry, Razi University, 67149-67346, Kermanshah, Iran
| | - Shahab Sheibani
- Radiation Application Research School, Nuclear Science and Technology Research Institute, 11365-3486, Tehran, Iran
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26
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Facile and inexpensive fabrication of zinc oxide based bio-surfaces for C-reactive protein detection. Sci Rep 2018; 8:12687. [PMID: 30140055 PMCID: PMC6107546 DOI: 10.1038/s41598-018-30793-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/02/2018] [Indexed: 12/26/2022] Open
Abstract
The paper reports a biosensor formed from antibody coated ZnO nano-crystals which has been prepared using a rapid and inexpensive fabrication method which utilises colloidal dispersion enhanced using sonication. This technique was used to prepare highly ordered and uniform nano-crystalline sensor surfaces on polyethylene terephthalate (PET) using 0.5%, 1% and 5% concentrations of zinc oxide nano-crystal suspensions. Impedance spectroscopy was employed to interrogate the sensor surfaces and confirmed high reproducibility of the fabrication process. Changes in impedance values, at a frequency of 138 Hz, were used to establish dose dependent responses for C-reactive protein (CRP) antigen. A limit of detection of less than 1 ng/ml was demonstrated for nano-surfaces fabricated from concentrations of 1% ZnO.
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27
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Bakirhan NK, Ozcelikay G, Ozkan SA. Recent progress on the sensitive detection of cardiovascular disease markers by electrochemical-based biosensors. J Pharm Biomed Anal 2018; 159:406-424. [PMID: 30036704 DOI: 10.1016/j.jpba.2018.07.021] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 12/15/2022]
Abstract
Cardiovascular disease is the most reason for deaths in all over the world. Hence, biomarkers of cardiovascular diseases are very crucial for diagnosis and management process. Biomarker detection demand is opened the important way in biosensor development field. Rapid, cheap, portable, precise, selective and sensitive biomarker sensing devices are needed at this point to detect and predict disease. A cardiac biomarker can be orderable as C-reactive protein, troponin I or T, myoglobin, tumor necrosis factor alpha, interleukin-6, interleukin-1, lipoprotein-associated phospholipase, low-density lipoprotein and myeloperoxidase. They are used for prediction of cardiovascular diseases. There are many methods for early diagnosis of cardiovascular diseases, but these have long time process and expensive devices. In recent studies, different biosensors have been developed to remove the problems in this field. Electrochemical devices and developed biosensors have many superiorities than others such as low cost, mobile, reliable, repeatable, need a little amount of solution. In this review, recent studies were presented as details for cardiovascular disease biomarkers detection using electrochemical methods.
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Affiliation(s)
- Nurgul K Bakirhan
- Hitit University, Faculty of Arts and Sciences, Department of Chemistry, Corum, Turkey
| | - Goksu Ozcelikay
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Tandogan, Ankara, Turkey
| | - Sibel A Ozkan
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Tandogan, Ankara, Turkey.
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28
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Uthappa U, Brahmkhatri V, Sriram G, Jung HY, Yu J, Kurkuri N, Aminabhavi TM, Altalhi T, Neelgund GM, Kurkuri MD. Nature engineered diatom biosilica as drug delivery systems. J Control Release 2018; 281:70-83. [DOI: 10.1016/j.jconrel.2018.05.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/11/2018] [Accepted: 05/11/2018] [Indexed: 02/08/2023]
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29
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Ragni R, Cicco SR, Vona D, Farinola GM. Multiple Routes to Smart Nanostructured Materials from Diatom Microalgae: A Chemical Perspective. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704289. [PMID: 29178521 DOI: 10.1002/adma.201704289] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/30/2017] [Indexed: 06/07/2023]
Abstract
Diatoms are unicellular photosynthetic microalgae, ubiquitously diffused in both marine and freshwater environments, which exist worldwide with more than 100 000 species, each with different morphologies and dimensions, but typically ranging from 10 to 200 µm. A special feature of diatoms is their production of siliceous micro- to nanoporous cell walls, the frustules, whose hierarchical organization of silica layers produces extraordinarily intricate pore patterns. Due to the high surface area, mechanical resistance, unique optical features, and biocompatibility, a number of applications of diatom frustules have been investigated in photonics, sensing, optoelectronics, biomedicine, and energy conversion and storage. Current progress in diatom-based nanotechnology relies primarily on the availability of various strategies to isolate frustules, retaining their morphological features, and modify their chemical composition for applications that are not restricted to those of the bare biosilica produced by diatoms. Chemical or biological methods that decorate, integrate, convert, or mimic diatoms' biosilica shells while preserving their structural features represent powerful tools in developing scalable, low-cost routes to a wide variety of nanostructured smart materials. Here, the different approaches to chemical modification as the basis for the description of applications relating to the different materials thus obtained are presented.
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Affiliation(s)
- Roberta Ragni
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro,", via Orabona 4, I-70126, Bari, Italy
| | - Stefania R Cicco
- CNR-ICCOM-Bari, Dipartimento di Chimica, via Orabona 4, I-70126, Bari, Italy
| | - Danilo Vona
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro,", via Orabona 4, I-70126, Bari, Italy
| | - Gianluca M Farinola
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro,", via Orabona 4, I-70126, Bari, Italy
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30
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Muñoz J, Montes R, Baeza M. Trends in electrochemical impedance spectroscopy involving nanocomposite transducers: Characterization, architecture surface and bio-sensing. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.08.012] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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31
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Albert K, Huang XC, Hsu HY. Bio-templated silica composites for next-generation biomedical applications. Adv Colloid Interface Sci 2017; 249:272-289. [PMID: 28499603 DOI: 10.1016/j.cis.2017.04.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/13/2017] [Accepted: 04/21/2017] [Indexed: 11/28/2022]
Abstract
Silica-based materials have extensive biomedical applications owing to their unique physical, chemical, and biological properties. Recently, increasing studies have examined the mechanisms involved in biosilicification to develop novel, fine-tunable, eco-friendly materials and/or technologies. In this review, we focus on recent developments in bio-templated silica synthesis and relevant applications in drug delivery systems, tissue engineering, and biosensing.
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Affiliation(s)
- Karunya Albert
- Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Xin-Chun Huang
- Department of Applied Chemistry, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Hsin-Yun Hsu
- Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan; Department of Applied Chemistry, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan.
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32
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Cecchetto J, Fernandes FC, Lopes R, Bueno PR. The capacitive sensing of NS1 Flavivirus biomarker. Biosens Bioelectron 2017; 87:949-956. [DOI: 10.1016/j.bios.2016.08.097] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/26/2016] [Accepted: 08/28/2016] [Indexed: 02/05/2023]
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33
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Leonardo S, Prieto-Simón B, Campàs M. Past, present and future of diatoms in biosensing. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.11.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Li A, Zhang W, Ghaffarivardavagh R, Wang X, Anderson SW, Zhang X. Towards uniformly oriented diatom frustule monolayers: Experimental and theoretical analyses. MICROSYSTEMS & NANOENGINEERING 2016; 2:16064. [PMID: 31057843 PMCID: PMC6444733 DOI: 10.1038/micronano.2016.64] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 07/16/2016] [Accepted: 07/31/2016] [Indexed: 05/12/2023]
Abstract
Diatoms are unicellular, photosynthetic algae that are ubiquitous in aquatic environments. Their unique, three-dimensional (3D) structured silica exoskeletons, also known as frustules, have drawn attention from a variety of research fields due to their extraordinary mechanical properties, enormous surface area, and unique optical properties. Despite their promising use in a range of applications, without methods to uniformly control the frustules' alignment/orientation, their full potential in technology development cannot be realized. In this paper, we realized and subsequently modeled a simple bubbling method for achieving large-area, uniformly oriented Coscinodiscus species diatom frustules. With the aid of bubble-induced agitations, close-packed frustule monolayers were achieved on the water-air interface with up to nearly 90% of frustules achieving uniform orientation. The interactions between bubble-induced agitations were modeled and analyzed, demonstrating frustule submersion and an adjustment of the orientation during the subsequent rise towards the water's surface to be fundamental to the experimentally observed uniformity. The method described in this study holds great potential for frustules' engineering applications in a variety of technologies, from sensors to energy-harvesting devices.
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Affiliation(s)
- Aobo Li
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
| | - Wenqiang Zhang
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
| | | | - Xiaoning Wang
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
| | - Stephan W. Anderson
- Department of Radiology, Boston University Medical Center, Boston, MA 02118, USA
- ()
| | - Xin Zhang
- Department of Mechanical Engineering, Boston University, Boston, MA 02215, USA
- ()
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35
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Bedatty Fernandes FC, Patil AV, Bueno PR, Davis JJ. Optimized Diagnostic Assays Based on Redox Tagged Bioreceptive Interfaces. Anal Chem 2015; 87:12137-44. [DOI: 10.1021/acs.analchem.5b02976] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Flavio C. Bedatty Fernandes
- Institute
of Chemistry, Physical Chemistry Department, Nanobionics group, Univ. Estadual Paulista (São Paulo State University, UNESP), CP 355, 14800-900, Araraquara, São Paulo, Brazil
| | - Amol V. Patil
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
| | - Paulo R. Bueno
- Institute
of Chemistry, Physical Chemistry Department, Nanobionics group, Univ. Estadual Paulista (São Paulo State University, UNESP), CP 355, 14800-900, Araraquara, São Paulo, Brazil
| | - Jason J. Davis
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
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Lechner CC, Becker CFW. Silaffins in Silica Biomineralization and Biomimetic Silica Precipitation. Mar Drugs 2015; 13:5297-333. [PMID: 26295401 PMCID: PMC4557024 DOI: 10.3390/md13085297] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 12/05/2022] Open
Abstract
Biomineralization processes leading to complex solid structures of inorganic material in biological systems are constantly gaining attention in biotechnology and biomedical research. An outstanding example for biomineral morphogenesis is the formation of highly elaborate, nano-patterned silica shells by diatoms. Among the organic macromolecules that have been closely linked to the tightly controlled precipitation of silica in diatoms, silaffins play an extraordinary role. These peptides typically occur as complex posttranslationally modified variants and are directly involved in the silica deposition process in diatoms. However, even in vitro silaffin-based peptides alone, with and without posttranslational modifications, can efficiently mediate biomimetic silica precipitation leading to silica material with different properties as well as with encapsulated cargo molecules of a large size range. In this review, the biomineralization process of silica in diatoms is summarized with a specific focus on silaffins and their in vitro silica precipitation properties. Applications in the area of bio- and nanotechnology as well as in diagnostics and therapy are discussed.
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Affiliation(s)
- Carolin C Lechner
- Swiss Federal Institute of Technology in Lausanne (EPFL), Fondation Sandoz Chair in Biophysical Chemistry of Macromolecules, 1015 Lausanne, Switzerland.
| | - Christian F W Becker
- Institute of Biological Chemistry, Department of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria.
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37
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Moral-Vico J, Barallat J, Abad L, Olivé-Monllau R, Muñoz-Pascual FX, Galán Ortega A, del Campo FJ, Baldrich E. Dual chronoamperometric detection of enzymatic biomarkers using magnetic beads and a low-cost flow cell. Biosens Bioelectron 2015; 69:328-36. [DOI: 10.1016/j.bios.2015.02.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/06/2015] [Accepted: 02/16/2015] [Indexed: 01/14/2023]
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38
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Cicco SR, Vona D, De Giglio E, Cometa S, Mattioli-Belmonte M, Palumbo F, Ragni R, Farinola GM. Chemically Modified Diatoms Biosilica for Bone Cell Growth with Combined Drug-Delivery and Antioxidant Properties. Chempluschem 2015; 80:1104-1112. [DOI: 10.1002/cplu.201402398] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/12/2015] [Indexed: 11/10/2022]
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39
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Sadana A, Sadana N. Detection of Biomarkers for Different Diseases on Biosensor Surfaces Part II. BIOMARKERS AND BIOSENSORS 2015. [PMCID: PMC7151883 DOI: 10.1016/b978-0-444-53794-2.00011-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In this chapter the authors analyze the binding and dissociation kinetics (if applicable) of (1) interferon-gamma as a function of aptamer variants and inclusion of spacer, (2) GST-N protein in PBS and GST-N protein in 10-fold diluted serum to a localized surface plasmon resonance coupled fluorescence biosensor, (3) cytochrome c mutant to a superoxide biosensor, (4) Carbonic Anhydrase-II to an 4-(2-aminoethyl)-benzene sulfonamide ligand on an surface plasmon resonance biosensor surface, (5) glycerol secretion from differentiated (murine 3T3-L1) adipocytes to a microfluidic platform for fluorescence-based assay, and (6) different concentrations of C-reactive protein in solution to a sandwich-type assay using reflectometric interference spectroscopy (label-free detection method).
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40
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Patil AV, Bedatty Fernandes FC, Bueno PR, Davis JJ. Immittance Electroanalysis in Diagnostics. Anal Chem 2014; 87:944-50. [DOI: 10.1021/ac503156a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Amol V. Patil
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Flávio C. Bedatty Fernandes
- Institute
of Chemistry, Physical Chemistry Department, Univ. Estadual Paulista (São Paulo State University), Nanobionics Research Group, CP 355, 14800-900, Araraquara, São
Paulo, Brazil
| | - Paulo R. Bueno
- Institute
of Chemistry, Physical Chemistry Department, Univ. Estadual Paulista (São Paulo State University), Nanobionics Research Group, CP 355, 14800-900, Araraquara, São
Paulo, Brazil
| | - Jason J. Davis
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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41
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Chai C, Lee J, Oh SW, Takhistov P. Impedimetric Characterization of Adsorption ofListeria monocytogeneson the Surface of an Aluminum-Based Immunosensor. J Food Sci 2014; 79:E2266-71. [DOI: 10.1111/1750-3841.12663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 08/20/2014] [Indexed: 01/02/2023]
Affiliation(s)
- Changhoon Chai
- Dept. of Food and Nutrition; Kookmin Univ; Seoul 136-702 Korea
- School of Environmental and Biological Sciences; Rutgers, the State Univ. of New Jersey; New Brunswick NJ 08901 U.S.A
| | - Jooyoung Lee
- Dept. of Biotechnology; College of Life Science and Biotechnology; Yonsei Univ; Seoul 120-479 Korea
| | - Se-Wook Oh
- Dept. of Food and Nutrition; Kookmin Univ; Seoul 136-702 Korea
| | - Paul Takhistov
- School of Environmental and Biological Sciences; Rutgers, the State Univ. of New Jersey; New Brunswick NJ 08901 U.S.A
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42
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Carbon nanotube wiring for signal amplification of electrochemical magneto immunosensors: application to myeloperoxidase detection. Anal Bioanal Chem 2014; 406:5487-93. [DOI: 10.1007/s00216-014-7954-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/30/2014] [Accepted: 06/05/2014] [Indexed: 01/30/2023]
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43
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Biofunctionalized Gold Nanoparticle-Conducting Polymer Nanocomposite Based Bioelectrode for CRP Detection. Appl Biochem Biotechnol 2014; 174:984-97. [DOI: 10.1007/s12010-014-0984-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
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45
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Díaz-González M, Muñoz-Berbel X, Jiménez-Jorquera C, Baldi A, Fernández-Sánchez C. Diagnostics Using Multiplexed Electrochemical Readout Devices. ELECTROANAL 2014. [DOI: 10.1002/elan.201400015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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46
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Ihalainen P, Pettersson F, Pesonen M, Viitala T, Määttänen A, Österbacka R, Peltonen J. An impedimetric study of DNA hybridization on paper-supported inkjet-printed gold electrodes. NANOTECHNOLOGY 2014; 25:094009. [PMID: 24522116 DOI: 10.1088/0957-4484/25/9/094009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, two different supramolecular recognition architectures for impedimetric detection of DNA hybridization have been formed on disposable paper-supported inkjet-printed gold electrodes. The gold electrodes were fabricated using a gold nanoparticle based ink. The first recognition architecture consists of subsequent layers of biotinylated self-assembly monolayer (SAM), streptavidin and biotinylated DNA probe. The other recognition architecture is constructed by immobilization of thiol-functionalized DNA probe (HS-DNA) and subsequent backfill with 11-mercapto-1-undecanol (MUOH) SAM. The binding capacity and selectivity of the recognition architectures were examined by surface plasmon resonance (SPR) measurements. SPR results showed that the HS-DNA/MUOH system had a higher binding capacity for the complementary DNA target. Electrochemical impedance spectroscopy (EIS) measurements showed that the hybridization can be detected with impedimetric spectroscopy in picomol range for both systems. EIS signal indicated a good selectivity for both recognition architectures, whereas SPR showed very high unspecific binding for the HS-DNA/MUOH system. The factors affecting the impedance signal were interpreted in terms of the complexity of the supramolecular architecture. The more complex architecture acts as a less ideal capacitive sensor and the impedance signal is dominated by the resistive elements.
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Affiliation(s)
- Petri Ihalainen
- Center of Excellence for Functional Materials and Laboratory of Physical Chemistry, Department of Natural Sciences, Åbo Akademi University, Turku, Finland
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47
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Belegratis MR, Schmidt V, Nees D, Stadlober B, Hartmann P. Diatom-inspired templates for 3D replication: natural diatoms versus laser written artificial diatoms. BIOINSPIRATION & BIOMIMETICS 2014; 9:016004. [PMID: 24343246 DOI: 10.1088/1748-3182/9/1/016004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The diatoms are ubiquitous, exist in large numbers and show a great diversity of features on their porous silica structures. Therefore, they inspire the fabrication of nanostructured templates for nanoimprint processes (NIL), where large structured areas with nanometer precision are required. In this study, two approaches regarding the respective challenges and potential exploitations are followed and discussed: the first one takes advantage of a template that is directly made of natural occurring diatoms. Here, two replication steps via soft lithography are needed to obtain a template which is subsequently used for NIL. The second approach exploits the technical capabilities of the precise 3D laser lithography (3DLL) based on two-photon polymerization of organic materials. This method enables the fabrication of arbitrary artificial diatom-inspired micro- and nanostructures and the design of an inverse structure. Therefore, only one replication step is needed to obtain a template for NIL. In both approaches, a replication technique for true 3D structures is shown.
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Affiliation(s)
- M R Belegratis
- Institute for Surface Technologies and Photonics, Joanneum Research, Franz-Pichler Straße 30, A-8160 Weiz, Austria
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48
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Nagaraj VJ, Jacobs M, Vattipalli KM, Annam VP, Prasad S. Nanochannel-based electrochemical sensor for the detection of pharmaceutical contaminants in water. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:135-140. [PMID: 24276544 DOI: 10.1039/c3em00406f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Effective real-time monitoring is the key to understanding and tackling the issue of pharmaceutical contamination of water. This research demonstrates the utility of an alumina nanochannel-based electrochemical sensor platform for the detection of ibuprofen in water derived from various sources. Our results indicate that the sensor is highly sensitive with a limit of detection at 0.25 pg mL(-1). The novel sensor described here has potential for application as a simple, rapid, inexpensive and highly reliable method for real-time environmental water quality assessment.
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Affiliation(s)
- Vinay J Nagaraj
- Department of Biochemistry, Midwestern University, 19555 North 59th Avenue, Glendale, Arizona 85308, USA
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49
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Pan J, Wang Y, Cai J, Li A, Zhang H, Jiang Y, Zhang D. Bonding of diatom frustules and Si substrates assisted by hydrofluoric acid. NEW J CHEM 2014. [DOI: 10.1039/c3nj01061a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Hasanzadeh M, Shadjou N, Soleymani J, Omidinia E, de la Guardia M. Optical immunosensing of effective cardiac biomarkers on acute myocardial infarction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.06.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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