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Ye C, Zhao Z, Lai P, Chen C, Jian F, Liang H, Guo Q. Strategies for the detection of site-specific DNA methylation and its application, opportunities and challenges in the field of electrochemical biosensors. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:5496-5508. [PMID: 39051422 DOI: 10.1039/d4ay00779d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
DNA methylation is an epigenetic modification that plays a crucial role in various biological processes. Aberrant DNA methylation is closely associated with the onset of diseases, and the specific localization of methylation sites in the genome offers further insight into the connection between methylation and diseases. Currently, there are numerous methods available for site-specific methylation detection. Electrochemical biosensors have garnered significant attention due to their distinct advantages, such as rapidity, simplicity, high sensitivity, low cost, and the potential for miniaturization. In this paper, we present a systematic review of the primary sensing strategies utilized in the past decade for analyzing site-specific methylation and their applications in electrochemical sensors, from a novel perspective focusing on the localization analysis of site-specific methylation. These strategies include bisulfite treatment, restriction endonuclease treatment, other sensing strategies, and deamination without direct bisulfite treatment. We hope that this paper can offer ideas and references for establishing site-specific methylation electrochemical analysis in clinical practice.
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Affiliation(s)
- Chenliu Ye
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
| | - Zhibin Zhao
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
| | - Penghui Lai
- The Second Hospital of Longyan, Longyan 364000, China
| | - Chunmei Chen
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
| | - Fumei Jian
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
| | - Haiying Liang
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
| | - Qiongying Guo
- Department of Pharmacy, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China.
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Singh R, Rawat H, Kumar A, Gandhi Y, Kumar V, Mishra SK, Narasimhaji CV. Graphene and its hybrid nanocomposite: A Metamorphoses elevation in the field of tissue engineering. Heliyon 2024; 10:e33542. [PMID: 39040352 PMCID: PMC11261797 DOI: 10.1016/j.heliyon.2024.e33542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 06/06/2024] [Accepted: 06/23/2024] [Indexed: 07/24/2024] Open
Abstract
In this discourse, we delve into the manifold applications of graphene-based nanomaterials (GBNs) in the realm of biomedicine. Graphene, characterized by its two-dimensional planar structure, superconductivity, mechanical robustness, chemical inertness, extensive surface area, and propitious biocompatibility, stands as an exemplary candidate for diverse biomedical utility. Graphene include various distinctive characteristics of its two-dimensional planar structure, enormous surface area, mechanical and chemical stability, high conductivity, and exceptional biocompatibility. We investigate graphene and its diverse derivatives, which include reduced graphene oxides (rGOs), graphene oxides (GOs), and graphene composites, with a focus on elucidating the unique attributes relevant to their biomedical utility. In this review article it highlighted the unique properties of graphene, synthesis methods of graphene and functionalization methods of graphene. In the quest for novel materials to advance regenerative medicine, researchers have increasingly turned their attention to graphene-based materials, which have emerged as a prominent innovation in recent years. Notably, it highlights their applications in the regeneration of various tissues, including nerves, skeletal muscle, bones, skin, cardiac tissue, cartilage, and adipose tissue, as well as their influence on induced pluripotent stem cells, marking significant breakthroughs in the field of regenerative medicine. Additionally, this review article explores future prospects in this evolving area of study.
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Affiliation(s)
- Rajesh Singh
- Department of Chemistry, Central Ayurveda Research Institute Jhansi, U.P, 284003, India
| | - Hemant Rawat
- Department of Chemistry, Central Ayurveda Research Institute Jhansi, U.P, 284003, India
| | - Ashwani Kumar
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Yashika Gandhi
- Department of Chemistry, Central Ayurveda Research Institute Jhansi, U.P, 284003, India
| | - Vijay Kumar
- Department of Chemistry, Central Ayurveda Research Institute Jhansi, U.P, 284003, India
| | - Sujeet K. Mishra
- Department of Chemistry, Central Ayurveda Research Institute Jhansi, U.P, 284003, India
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Wang M, Wang Y, Fu Q. Magneto-optical nanosystems for tumor multimodal imaging and therapy in-vivo. Mater Today Bio 2024; 26:101027. [PMID: 38525310 PMCID: PMC10959709 DOI: 10.1016/j.mtbio.2024.101027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/26/2024] Open
Abstract
Multimodal imaging, which combines the strengths of two or more imaging modalities to provide complementary anatomical and molecular information, has emerged as a robust technology for enhancing diagnostic sensitivity and accuracy, as well as improving treatment monitoring. Moreover, the application of multimodal imaging in guiding precision tumor treatment can prevent under- or over-treatment, thereby maximizing the benefits for tumor patients. In recent years, several intriguing magneto-optical nanosystems with both magnetic and optical properties have been developed, leading to significant breakthroughs in the field of multimodal imaging and image-guided tumor therapy. These advancements pave the way for precise tumor medicine. This review summarizes various types of magneto-optical nanosystems developed recently and describes their applications as probes for multimodal imaging and agents for image-guided therapeutic interventions. Finally, future research and development prospects of magneto-optical nanosystems are discussed along with an outlook on their further applications in the biomedical field.
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Affiliation(s)
- Mengzhen Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yin Wang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University, Qingdao University, Jinan, 250014, China
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Qinrui Fu
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province Affiliated to Qingdao University, Qingdao University, Jinan, 250014, China
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
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Pengsomjit U, Alabdo F, Karuwan C, Kraiya C, Alahmad W, Ozkan SA. Innovative Graphene-Based Nanocomposites for Improvement of Electrochemical Sensors: Synthesis, Characterization, and Applications. Crit Rev Anal Chem 2024:1-19. [PMID: 38656227 DOI: 10.1080/10408347.2024.2343854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Graphene, renowned for its exceptional physicochemical attributes, has emerged as a favored substrate for integrating a wide array of inorganic and organic materials in scientific endeavors and innovations. Electrochemical graphene-based nanocomposite sensors have been developed by incorporating diverse nanoparticles into graphene, effectively immobilized onto electrodes through various techniques. These graphene-based nanocomposite sensors have effectively detected and quantified various electroactive species in samples. This review delves into using graphene nanocomposites to fabricate electrochemical sensors, leveraging the exceptional electrical, mechanical, and thermal properties inherent to graphene derivatives. These nanocomposites showcase electrocatalytic activity, substantial surface area, superior electrical conductivity, adsorption capabilities, and notable porosity, which are highly advantageous for sensing applications. A myriad of characterization techniques, including Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), BET surface area analysis, and X-ray diffraction (XRD), have proven effective in exploring the properties of graphene nanocomposites and validating the adjustable formation of these nanomaterials with graphene. The applicability of these sensors across various matrices, encompassing environmental, food, and biological domains, has been evaluated through electrochemical measurements, such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). This review provides a comprehensive overview of synthesis methods, characterization techniques, and sensor applications pertinent to graphene-based nanocomposites. Furthermore, it deliberates on the challenges and future prospects within this burgeoning field.
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Affiliation(s)
- Untika Pengsomjit
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Department of Chemistry, Faculty of Science, Electrochemistry and Optical Spectroscopy Center of Excellence, Chulalongkorn University, Bangkok, Thailand
| | - Fatima Alabdo
- Department of Chemistry and Physics, Faculty of Science, Idlib University, Idlib, Syria
| | - Chanpen Karuwan
- Graphene Research Team (GRP), National Nanotechnology Center (NANOTEC), National Science and Technology Development (NSTDA), Pathum Thani, Thailand
| | - Charoenkwan Kraiya
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Department of Chemistry, Faculty of Science, Electrochemistry and Optical Spectroscopy Center of Excellence, Chulalongkorn University, Bangkok, Thailand
| | - Waleed Alahmad
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Sibel A Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkiye
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Liu Y, Xiao Y, Zhang Y, Gao X, Wang H, Niu B, Li W. ZnO-rGO-based electrochemical biosensor for the detection of organophosphorus pesticides. Bioelectrochemistry 2024; 156:108599. [PMID: 37988979 DOI: 10.1016/j.bioelechem.2023.108599] [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: 07/20/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/23/2023]
Abstract
The accurate determination of organophosphorus pesticide residues is of great importance for human disease monitoring and environmental safety. Numerous detection methods exist, among which sensitive monitoring of organophosphorus compounds using electrochemical sensors has gradually become a research hotspot. This paper used acetylcholinesterase (AChE) as an indicator anchored on a zinc oxide-reduced graphene oxide (ZnO-rGO) composite rich in active sites, in which green non-toxic zinc oxide (ZnO) nanomaterials were uniformly distributed on the reduced graphene for rapid detection of organophosphorus. The effects of different ratios of ZnO to reduced graphene on the performance of ZnO-rGO nanocomposites were investigated. The AChE/ZnO-rGO biosensor detects organophosphorus by electrochemical inhibition of acetylcholinesterase in the presence of organophosphorus. The developed electrochemical biosensor has high selectivity and good linearity, and the ZnO-rGO nanocomposite as a matrix for immobilization of acetylcholinesterase and detection of organophosphorus has the potential for highly sensitive pesticide detection.
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Affiliation(s)
- Yaru Liu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
| | - Yu Xiao
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
| | - Yuchen Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
| | - Xianghua Gao
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
| | - Huifang Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
| | - Baolong Niu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China.
| | - Wenfeng Li
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China
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Gutiérrez-Pineda E, Subrati A, Rodríguez-Presa MJ, Gervasi CA, Moya SE. Electrochemical Exfoliation of Graphene Oxide: Unveiling Structural Properties and Electrochemical Performance. Chemistry 2023; 29:e202302450. [PMID: 37671633 DOI: 10.1002/chem.202302450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
An electrochemical exfoliation method for the production of graphene oxide and its characterization by electrochemical techniques are presented here. Graphite rods are used as working electrode in a three-electrode electrochemical cell, and electro-exfoliation is achieved by applying anodic polarization in a sulfuric acid solution. The electrochemical process involved two steps characterized by an intercalation at lower potential and an exfoliation at higher potential. The electrochemical behavior of the produced GO is studied through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). X ray Photoelectronic Spectroscopy (XPS), Raman spectroscopy, Transmission Electron Microscopy (TEM), and Atomic Force Microscopy (AFM) are employed to characterize the structural and chemical properties of the exfoliated GO. The results demonstrate that the electrochemical exfoliation method yields GO materials with varying degrees of oxidation, defect density, and crystallite size, depending on the applied potential and acid concentration. The graphene oxide samples exhibited distinct electrochemical properties, including charge transfer resistance, interfacial capacitance, and relaxation times for the charge transfer, as revealed by CV and EIS measurements with a specifically selected redox probe. The comprehensive characterization performed provides valuable insights into the structure-property relationships of the GO materials synthesized through electrochemical exfoliation of graphite.
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Affiliation(s)
- Eduart Gutiérrez-Pineda
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
- Escuela de Ciencias Básicas, Tecnología e Ingeniería (ECBTI), Universidad Nacional Abierta y a Distancia (UNAD), 680001, Bucaramanga, Santander, Colombia
| | - Ahmed Subrati
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
| | - María José Rodríguez-Presa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Claudio A Gervasi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
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Nejati-Koshki K, Fathi F, Arabzadeh A, Mohammadzadeh A. Biomarkers and optical based biosensors in cardiac disease detection: early and accurate diagnosis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:5441-5458. [PMID: 37814547 DOI: 10.1039/d3ay01414b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Rapid and precise detection methods for the early-stage detection of cardiovascular irregularities are crucial to stopping and reducing their development. Cardiovascular diseases (CVDs) are the leading cause of death in the world. Hence, cardiac-related biomarkers are essential for monitoring and managing of process. The necessity for biomarker detection has significantly widened the field of biosensor development. Bio-sensing methods offer rapid detection, low cost, sensitivity, portability, and selectivity in the development of devices for biomarker detection. For the prediction of cardiovascular diseases, some biomarkers can be used, like C-reactive protein (CRP), troponin I or T, creatine kinase (CK-MB), B-type natriuretic peptide (BNP), myoglobin (Mb), suppression of tumorigenicity 2 protein (ST2) and galectin-3 (Gal3). In this review, recent research studies were covered for gaining insight into utilizing optical-based biosensors, including surface plasmon resonance (SPR), photonic crystals (PCs), fluorescence-based techniques, fiber optics, and also Raman spectroscopy biosensors for the ultrasensitive detection of cardiac biomarkers. The main goal of this review is to focus on the improvement of optical biosensors in the future for the diagnosis of heart diseases and to discuss how to enhance their properties for use in medicine. Some main data from each study reviewed are emphasized, including the CVD biomarkers and the response range of the optical-based devices and biosensors.
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Affiliation(s)
- Kazem Nejati-Koshki
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Fathi
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - AmirAhmad Arabzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Alireza Mohammadzadeh
- Department of Surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
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Li X, Wang Y, Huang D, Jiang Z, He Z, Luo M, Lei J, Xiao Y. Nanomaterials Modulating the Fate of Dental-Derived Mesenchymal Stem Cells Involved in Oral Tissue Reconstruction: A Systematic Review. Int J Nanomedicine 2023; 18:5377-5406. [PMID: 37753067 PMCID: PMC10519211 DOI: 10.2147/ijn.s418675] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/03/2023] [Indexed: 09/28/2023] Open
Abstract
The critical challenges in repairing oral soft and hard tissue defects are infection control and the recovery of functions. Compared to conventional tissue regeneration methods, nano-bioactive materials have become the optimal materials with excellent physicochemical properties and biocompatibility. Dental-derived mesenchymal stem cells (DMSCs) are a particular type of mesenchymal stromal cells (MSCs) with great potential in tissue regeneration and differentiation. This paper presents a review of the application of various nano-bioactive materials for the induction of differentiation of DMSCs in oral and maxillofacial restorations in recent years, outlining the characteristics of DMSCs, detailing the biological regulatory effects of various nano-materials on stem cells and summarizing the material-induced differentiation of DMSCs into multiple types of tissue-induced regeneration strategies. Nanomaterials are different and complementary to each other. These studies are helpful for the development of new nanoscientific research technology and the clinical transformation of tissue reconstruction technology and provide a theoretical basis for the application of nanomaterial-modified dental implants. We extensively searched for papers related to tissue engineering bioactive constructs based on MSCs and nanomaterials in the databases of PubMed, Medline, and Google Scholar, using keywords such as "mesenchymal stem cells", "nanotechnology", "biomaterials", "dentistry" and "tissue regeneration". From 2013 to 2023, we selected approximately 150 articles that align with our philosophy.
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Affiliation(s)
- Xingrui Li
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Yue Wang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Denghao Huang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Zhonghao Jiang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Zhiyu He
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
| | - Maoxuan Luo
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Jie Lei
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Yao Xiao
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, the Affiliated Stomatological Hospital of Southwest Medical University, Institute of Stomatology, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Orthodontics, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Department of Chengbei Outpatient, the Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, People’s Republic of China
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Butko AV, Butko VY, Kumzerov YA. General Capacitance Upper Limit and Its Manifestation for Aqueous Graphene Interfaces. Int J Mol Sci 2023; 24:10861. [PMID: 37446037 DOI: 10.3390/ijms241310861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Double-layer capacitance (Cdl) is essential for chemical and biological sensors and capacitor applications. The correct formula for Cdl is a controversial subject for practically useful graphene interfaces with water, aqueous solutions, and other liquids. We have developed a model of Cdl, considering the capacitance of a charge accumulation layer (Cca) and capacitance (Ce) of a capacitance-limiting edge region with negligible electric susceptibility and conductivity between this layer and the capacitor electrode. These capacitances are connected in series, and Cdl can be obtained from 1/Cdl = 1/Cca + 1/Ce. In the case of aqueous graphene interfaces, this model predicts that Cdl is significantly affected by Ce. We have studied the graphene/water interface capacitance by low-frequency impedance spectroscopy. Comparison of the model predictions with the experimental results implies that the distance from charge carriers in graphene to the nearest molecular charges at the interface can be ~(0.05-0.1)nm and is about a typical length of the carbon-hydrogen bond. Generalization of this model, assuming that such an edge region between a conducting electrode and a charge accumulating region is intrinsic for a broad range of non-faradaic capacitors and cannot be thinner than an atomic size of ~0.05 nm, predicts a general capacitance upper limit of ~18 μF/cm2.
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Affiliation(s)
- Alexey V Butko
- Ioffe Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
| | - Vladimir Y Butko
- Ioffe Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
| | - Yurii A Kumzerov
- Ioffe Institute, Polytechnicheskaya 26, 194021 St. Petersburg, Russia
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Hsiao WWW, Angela S, Le TN, Ku CC, Hu PS, Chiang WH. Evolution of Detecting Early Onset of Alzheimer's Disease: From Neuroimaging to Optical Immunoassays. J Alzheimers Dis 2023:JAD221202. [PMID: 37125550 DOI: 10.3233/jad-221202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Alzheimer's disease (AD) is a pathological disorder defined by the symptoms of memory loss and deterioration of cognitive abilities over time. Although the etiology is complex, it is mainly associated with the accumulation of toxic amyloid-β peptide (Aβ) aggregates and tau protein-induced neurofibrillary tangles (NFTs). Even now, creating non-invasive, sensitive, specific, and cost-effective diagnostic methods for AD remains challenging. Over the past few decades, polymers, and nanomaterials (e.g., nanodiamonds, nanogold, quantum dots) have become attractive and practical tools in nanomedicine for diagnosis and treatment. This review focuses on current developments in sensing methods such as enzyme-linked immunosorbent assay (ELISA) and surface-enhanced Raman scattering (SERS) to boost the sensitivity in detecting related biomarkers for AD. In addition, optical analysis platforms such as ELISA and SERS have found increasing popularity among researchers due to their excellent sensitivity and specificity, which may go as low as the femtomolar range. While ELISA offers easy technological usage and high throughput, SERS has the advantages of improved mobility, simple electrical equipment integration, and lower cost. Both portable optical sensing techniques are highly superior in terms of sensitivity, specificity, human application, and practicality, enabling the early identification of AD biomarkers.
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Affiliation(s)
- Wesley Wei-Wen Hsiao
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C
| | - Stefanny Angela
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C
| | - Trong-Nghia Le
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan
| | - Chia-Chi Ku
- Graduate Institute of Immunology, National Taiwan University College of Medicine, Taipei, Taiwan, ROC
| | - Po-Sheng Hu
- College of Photonics, National Yang Ming Chiao Tung University, Tainan City, Taiwan
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C
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Kanemoto Y, Miyaji H, Nishida E, Hamamoto A, Sugaya T, Gohda S, Ono H. Water-resistant antibacterial properties of a graphene oxide/cetylpyridinium chloride complex formed on medical gauze fibers. J Oral Biosci 2023; 65:202-205. [PMID: 36809828 DOI: 10.1016/j.job.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/21/2023]
Abstract
OBJECTIVES Graphene oxide (GO) is a nanocarbon material with a high aspect ratio (width:thickness) and abundant anionic functional groups on its surface. In this study, we attached GO to the surface of medical gauze fibers, constructed a complex with a cationic surface active agent (CSAA), and demonstrated that the treated gauze exhibits antibacterial activity even after rinsing with water. METHODS Medical gauze was immersed in GO dispersion (0.001%, 0.01%, and 0.1%), rinsed with water, dried, and subjected to the Raman spectroscopy analysis. Subsequently, the gauze treated with 0.001% GO dispersion was immersed in 0.1% cetylpyridinium chloride (CPC) solution, immediately rinsed with water, and dried. Untreated, GO-only, and CPC-only gauzes were prepared for comparison. Each gauze was placed in a culture well, seeded with Escherichia coli or Actinomyces naeslundii, and turbidity was measured after 24 h of incubation. RESULTS The Raman spectroscopy analysis of the gauze after immersion and rinsing showed a G-band peak, indicating that GO remained on the surface of the gauze. The turbidity measurements indicated that GO/CPC-treated gauze (GO-treated and rinsed, followed by CPC-treatment and rinsing) significantly decreased turbidity compared to the other gauzes (P<0.05), suggesting that the GO/CPC complex remained on the gauze fibers even after water rinsing and showed antibacterial activity. CONCLUSIONS The GO/CPC complex imparts water-resistant antibacterial properties to gauze and has the potential to be widely used for the antimicrobial treatment of clothes.
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Affiliation(s)
- Yukimi Kanemoto
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13W7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan
| | - Hirofumi Miyaji
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13W7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan.
| | - Erika Nishida
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13W7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan
| | - Asako Hamamoto
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13W7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan
| | - Tsutomu Sugaya
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, N13W7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan
| | - Syun Gohda
- Nippon Shokubai Co., Ltd., 5-8 Nishiotabi-cho, Suita, Osaka 564-0034, Japan.
| | - Hironobu Ono
- Nippon Shokubai Co., Ltd., 5-8 Nishiotabi-cho, Suita, Osaka 564-0034, Japan
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12
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Bellier N, Baipaywad P, Ryu N, Lee JY, Park H. Recent biomedical advancements in graphene oxide- and reduced graphene oxide-based nanocomposite nanocarriers. Biomater Res 2022; 26:65. [DOI: 10.1186/s40824-022-00313-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/30/2022] [Indexed: 11/28/2022] Open
Abstract
AbstractRecently, nanocarriers, including micelles, polymers, carbon-based materials, liposomes, and other substances, have been developed for efficient delivery of drugs, nucleotides, and biomolecules. This review focuses on graphene oxide (GO) and reduced graphene oxide (rGO) as active components in nanocarriers, because their chemical structures and easy functionalization can be valuable assets for in vitro and in vivo delivery. Herein, we describe the preparation, structure, and functionalization of GO and rGO. Additionally, their important properties to function as nanocarriers are presented, including their molecular interactions with various compounds, near-infrared light adsorption, and biocompatibility. Subsequently, their mechanisms and the most appealing examples of their delivery applications are summarized. Overall, GO- and rGO-based nanocomposites show great promise as multipurpose nanocarriers owing to their various potential applications in drug and gene delivery, phototherapy, bioimaging, biosensing, tissue engineering, and as antibacterial agents.
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13
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Goyal A, Sakata T. Development of a Redox-Label-Doped Molecularly Imprinted Polymer on β-Cyclodextrin/Reduced Graphene Oxide for Electrochemical Detection of a Stress Biomarker. ACS OMEGA 2022; 7:33491-33499. [PMID: 36157772 PMCID: PMC9494674 DOI: 10.1021/acsomega.2c04423] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/26/2022] [Indexed: 06/16/2023]
Abstract
Cortisol is a major stress biomarker involved in the regulation of metabolic and immune responses. Readily accessible assays with sufficient quantitative and temporal resolution can assist in prevention, early diagnosis, and management of chronic diseases. Whereas conventional assays are costly in terms of time, labor, and capital, an electrochemical approach offers the possibility of miniaturization and detection at the point-of-care. Here, we investigate the biosensor application of molecularly imprinted polypyrrole (PPy) doped with hexacyanoferrate (HCF) and coupled to reduced graphene oxide functionalized with β-cyclodextrin (β-CD). β-CD provides an inclusion site for lipophilic cortisol and was electrochemically grafted simultaneous with reduction of GO. Next, PPy was electrochemically deposited in presence of cortisol template with HCF dopant ions serving as intrinsic redox probe. Thus, the sensor response was evaluated via changes of redox peak current in cyclic voltammetry and demonstrated a broad logarithmic detection range (5 pg/mL to 5000 ng/mL, R 2 = 0.995), with a sensitivity of 8.809 μA log-1 (ng/mL) cm-2 and LOD of 19.3 pM. The sensor was shown to be specific toward cortisol in reference to salivary cortisol concentration in saliva over structural analogues. The sensor was exhibited to determine cortisol in artificial saliva at normal and elevated levels. The good performance and facile electrochemical fabrication of this antibody- and external label-free interface are promising for the development of affordable point-of-care biosensors.
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14
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Ozkan-Ariksoysal D. Current Perspectives in Graphene Oxide-Based Electrochemical Biosensors for Cancer Diagnostics. BIOSENSORS 2022; 12:bios12080607. [PMID: 36005004 PMCID: PMC9405788 DOI: 10.3390/bios12080607] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/27/2022]
Abstract
Since the first commercial biosensor device for blood glucose measurement was introduced in the 1970s, many “biosensor types” have been developed, and this research area remains popular worldwide. In parallel with some global biosensor research reports published in the last decade, including a great deal of literature and industry statistics, it is predicted that biosensor design technologies, including handheld or wearable devices, will be preferred and highly valuable in many areas in the near future. Biosensors using nanoparticles still maintain their very important place in science and technology and are the subject of innovative research projects. Among the nanomaterials, carbon-based ones are considered to be one of the most valuable nanoparticles, especially in the field of electrochemical biosensors. In this context, graphene oxide, which has been used in recent years to increase the electrochemical analysis performance in biosensor designs, has been the subject of this review. In fact, graphene is already foreseen not only for biosensors but also as the nanomaterial of the future in many fields and is therefore drawing research attention. In this review, recent and prominent developments in biosensor technologies using graphene oxide (GO)-based nanomaterials in the field of cancer diagnosis are briefly summarized.
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Affiliation(s)
- Dilsat Ozkan-Ariksoysal
- Department of Analytical Chemistry, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey
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15
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Al-Shekaili A, Al-Shukaili W, Khudaish EA. A surface network based on oxidative graphene oxide for the determination of hydroquinone and catechol in ground and wastewater samples. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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One-Step Fabrication of Nickel-Electrochemically Reduced Graphene Oxide Nanocomposites Modified Electrodes and Application to the Detection of Sunset Yellow in Drinks. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052614] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This work describes a straightforward method using one-step preparation of graphene/nickel nanocomposite materials from low-cost materials including graphene oxide and nickel metal. Repetitive CVs lead to the simultaneous deposition of metallic nickel nanoparticles and reduced graphene oxide sheets onto glassy carbon electrode. The obtained nanocomposite-modified surfaces were characterised by cyclic voltammetry, differential pulse voltammetry and field emission scanning electron microscopy. The result demonstrated the ability to produce nickel nanoparticles with a small size of about 20 nm, uniformly dispersed on a graphene oxide matrix. The ERGO-NiNP nanocomposite could be used as a sensor material exhibiting high performance; it is used here in order to detect Sunset Yellow (SY) and for quantification in complex media. The sensor enables rapid quantification of SY with a good linearity (R2 = 0.996) in the range of 10–1000 nM, together with a low detection limit of 3.7 nM (equivalent to 1.7 µg L−1) and a high sensitivity up to 7 µA/µM. The sensor also displays high reliability with a RSD value = 1.08 (n = 10) and good reusability (signal response variation below 5% after 5 detection/cleaning cycles). Finally, we demonstrate how this GCE/ERGO-NiNP sensor can be used for the successful determination of SY in commercial soft drink samples with an acceptable deviation below 6.4% when compared to HPLC method.
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17
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Yang H, Ren J, Zhao M, Chen C, Wang F, Chen Z. Novel electrochemical immunosensor for O6-methylguanine-DNA methyltransferase gene methylation based on graphene oxide-magnetic nanoparticles-β-cyclodextrin nanocomposite. Bioelectrochemistry 2022; 146:108111. [DOI: 10.1016/j.bioelechem.2022.108111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/03/2022] [Accepted: 03/25/2022] [Indexed: 11/02/2022]
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18
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Dutta S, Corni S, Brancolini G. Atomistic Simulations of Functionalized Nano-Materials for Biosensors Applications. Int J Mol Sci 2022; 23:1484. [PMID: 35163407 PMCID: PMC8835741 DOI: 10.3390/ijms23031484] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 12/24/2022] Open
Abstract
Nanoscale biosensors, a highly promising technique in clinical analysis, can provide sensitive yet label-free detection of biomolecules. The spatial and chemical specificity of the surface coverage, the proper immobilization of the bioreceptor as well as the underlying interfacial phenomena are crucial elements for optimizing the performance of a biosensor. Due to experimental limitations at the microscopic level, integrated cross-disciplinary approaches that combine in silico design with experimental measurements have the potential to present a powerful new paradigm that tackles the issue of developing novel biosensors. In some cases, computational studies can be seen as alternative approaches to assess the microscopic working mechanisms of biosensors. Nonetheless, the complex architecture of a biosensor, associated with the collective contribution from "substrate-receptor-analyte" conjugate in a solvent, often requires extensive atomistic simulations and systems of prohibitive size which need to be addressed. In silico studies of functionalized surfaces also require ad hoc force field parameterization, as existing force fields for biomolecules are usually unable to correctly describe the biomolecule/surface interface. Thus, the computational studies in this field are limited to date. In this review, we aim to introduce fundamental principles that govern the absorption of biomolecules onto functionalized nanomaterials and to report state-of-the-art computational strategies to rationally design nanoscale biosensors. A detailed account of available in silico strategies used to drive and/or optimize the synthesis of functionalized nanomaterials for biosensing will be presented. The insights will not only stimulate the field to rationally design functionalized nanomaterials with improved biosensing performance but also foster research on the required functionalization to improve biomolecule-surface complex formation as a whole.
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Affiliation(s)
- Sutapa Dutta
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (S.D.); (S.C.)
- Institute of Nanoscience, CNR-NANO S3, Via G. Campi 213/A, 41125 Modena, Italy
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (S.D.); (S.C.)
- Institute of Nanoscience, CNR-NANO S3, Via G. Campi 213/A, 41125 Modena, Italy
| | - Giorgia Brancolini
- Institute of Nanoscience, CNR-NANO S3, Via G. Campi 213/A, 41125 Modena, Italy
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Pothipor C, Bamrungsap S, Jakmunee J, Ounnunkad K. A gold nanoparticle-dye/poly(3-aminobenzylamine)/two dimensional MoSe 2/graphene oxide electrode towards label-free electrochemical biosensor for simultaneous dual-mode detection of cancer antigen 15-3 and microRNA-21. Colloids Surf B Biointerfaces 2021; 210:112260. [PMID: 34894598 DOI: 10.1016/j.colsurfb.2021.112260] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 12/11/2022]
Abstract
A dual-mode electrochemical biosensor is successfully developed for simultaneous detection of two different kinds of breast cancer biomarkers, namely cancer antigen 15-3 (CA 15-3) and microRNA-21 (miRNA-21), for the first time. The sensor composes of a poly(3-aminobenzylamine)/two-dimensional (2D) molybdenum selenide/graphene oxide nanocomposite modified two-screen-printed carbon electrode array (dual electrode), functionalized individually with 2,3-diaminophenazine-gold nanoparticles and toluidine blue-gold nanoparticles. Both kinds of the redox probe-gold nanoparticles are employed as signaling molecules and supports for immobilization of anti-CA 15-3 antibodies and capture DNA-21 probes, respectively. Due to the good conductivity and high surface-to-volume ratio of the nanocomposite, high amount of the antibodies and capture probes can be immobilized on the modified dual-electrode, giving the efficient duplex detection. Consequently, the biosensor provides good selectivity, and high sensitivity for the dual target analyte detection. The experimental results show that this label-free biosensor exhibits good linear responses to the concentrations of both target analytes with the limits of detection (LODs) of 0.14 U mL-1 and 1.2 fM for CA 15-3 and miRNA-21, respectively. This assay strategy has a great potential to be further developed for the simultaneous detection of a variety of miRNAs and protein biomarkers for point-of-care (POC) diagnostic applications.
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Affiliation(s)
- Chammari Pothipor
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; The Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Suwussa Bamrungsap
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Jaroon Jakmunee
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kontad Ounnunkad
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.
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20
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Shahriari S, Sastry M, Panjikar S, Singh Raman RK. Graphene and Graphene Oxide as a Support for Biomolecules in the Development of Biosensors. Nanotechnol Sci Appl 2021; 14:197-220. [PMID: 34815666 PMCID: PMC8605898 DOI: 10.2147/nsa.s334487] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/02/2021] [Indexed: 01/21/2023] Open
Abstract
Graphene and graphene oxide have become the base of many advanced biosensors due to their exceptional characteristics. However, lack of some properties, such as inertness of graphene in organic solutions and non-electrical conductivity of graphene oxide, are their drawbacks in sensing applications. To compensate for these shortcomings, various methods of modifications have been developed to provide the appropriate properties required for biosensing. Efficient modification of graphene and graphene oxide facilitates the interaction of biomolecules with their surface, and the ultimate bioconjugate can be employed as the main sensing part of the biosensors. Graphene nanomaterials as transducers increase the signal response in various sensing applications. Their large surface area and perfect biocompatibility with lots of biomolecules provide the prerequisite of a stable biosensor, which is the immobilization of bioreceptor on transducer. Biosensor development has paramount importance in the field of environmental monitoring, security, defense, food safety standards, clinical sector, marine sector, biomedicine, and drug discovery. Biosensor applications are also prevalent in the plant biology sector to find the missing links required in the metabolic process. In this review, the importance of oxygen functional groups in functionalizing the graphene and graphene oxide and different types of functionalization will be explained. Moreover, immobilization of biomolecules (such as protein, peptide, DNA, aptamer) on graphene and graphene oxide and at the end, the application of these biomaterials in biosensors with different transducing mechanisms will be discussed.
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Affiliation(s)
- Shiva Shahriari
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
| | - Murali Sastry
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
| | - Santosh Panjikar
- ANSTO, Australian Synchrotron, Melbourne, Victoria, Australia
- Department of Molecular Biology and Biochemistry, Monash University, Melbourne, Victoria, Australia
| | - R K Singh Raman
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
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21
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Asghari A, Wang C, Yoo KM, Rostamian A, Xu X, Shin JD, Dalir H, Chen RT. Fast, accurate, point-of-care COVID-19 pandemic diagnosis enabled through advanced lab-on-chip optical biosensors: Opportunities and challenges. APPLIED PHYSICS REVIEWS 2021; 8:031313. [PMID: 34552683 PMCID: PMC8427516 DOI: 10.1063/5.0022211] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 05/21/2021] [Indexed: 05/14/2023]
Abstract
The sudden rise of the worldwide severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic in early 2020 has called into drastic action measures to perform instant detection and reduce the rate of spread. Common clinical and nonclinical diagnostic testing methods have been partially effective in satisfying the increasing demand for fast detection point-of-care (POC) methods to slow down further spread. However, accurate point-of-risk diagnosis of this emerging viral infection is paramount as the need for simultaneous standard operating procedures and symptom management of SARS-CoV-2 will be the norm for years to come. A sensitive, cost-effective biosensor with mass production capability is crucial until a universal vaccination becomes available. Optical biosensors can provide a noninvasive, extremely sensitive rapid detection platform with sensitivity down to ∼67 fg/ml (1 fM) concentration in a few minutes. These biosensors can be manufactured on a mass scale (millions) to detect the COVID-19 viral load in nasal, saliva, urine, and serological samples, even if the infected person is asymptotic. Methods investigated here are the most advanced available platforms for biosensing optical devices that have resulted from the integration of state-of-the-art designs and materials. These approaches include, but are not limited to, integrated optical devices, plasmonic resonance, and emerging nanomaterial biosensors. The lab-on-chip platforms examined here are suitable not only for SARS-CoV-2 spike protein detection but also for other contagious virions such as influenza and Middle East respiratory syndrome (MERS).
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Affiliation(s)
- Aref Asghari
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Chao Wang
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Kyoung Min Yoo
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Ali Rostamian
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Xiaochuan Xu
- Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA
| | - Jong-Dug Shin
- Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA
| | - Hamed Dalir
- Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA
| | - Ray T. Chen
- Author to whom correspondence should be addressed:
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22
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Hejna A. Clays as Inhibitors of Polyurethane Foams' Flammability. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4826. [PMID: 34500914 PMCID: PMC8432671 DOI: 10.3390/ma14174826] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 11/22/2022]
Abstract
Polyurethanes are a very important group of polymers with an extensive range of applications in different branches of industry. In the form of foams, they are mainly used in bedding, furniture, building, construction, and automotive sectors. Due to human safety reasons, these applications require an appropriate level of flame retardance, often required by various law regulations. Nevertheless, without the proper modifications, polyurethane foams are easily ignitable, highly flammable, and generate an enormous amount of smoke during combustion. Therefore, proper modifications or additives should be introduced to reduce their flammability. Except for the most popular phosphorus-, halogen-, or nitrogen-containing flame retardants, promising results were noted for the application of clays. Due to their small particle size and flake-like shape, they induce a "labyrinth effect" inside the foam, resulting in the delay of decomposition onset, reduction of smoke generation, and inhibition of heat, gas, and mass transfer. Moreover, clays can be easily modified with different organic compounds or used along with conventional flame retardants. Such an approach may often result in the synergy effect, which provides the exceptional reduction of foams' flammability. This paper summarizes the literature reports related to the applications of clays in the reduction of polyurethane foams' flammability, either by their incorporation as a nanofiller or by preparation of coatings.
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Affiliation(s)
- Aleksander Hejna
- Department of Polymer Technology, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
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23
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Xu Z, Peng M, Zhang Z, Zeng H, Shi R, Ma X, Wang L, Liao B. Graphene-Assisted Electrochemical Sensor for Detection of Pancreatic Cancer Markers. Front Chem 2021; 9:733371. [PMID: 34490213 PMCID: PMC8416602 DOI: 10.3389/fchem.2021.733371] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/09/2021] [Indexed: 11/18/2022] Open
Abstract
Pancreatic cancer is a highly lethal gastrointestinal malignancy. Most patients are already in the middle to advanced stages of pancreatic cancer at the time of diagnosis and cannot be treated completely. As a single-atom planar two-dimensional crystal, graphene's unusual electronic structure, specific electronic properties and excellent electron transport capacity make it uniquely advantageous in the field of electrochemical sensing. In this mini-review, we summarize the potential application of graphene in pancreatic cancer detection. K-Ras gene, CEA and MicroRNA are important in the early diagnosis of pancreatic cancer.
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Affiliation(s)
- Zhenglei Xu
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Minsi Peng
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Zhuliang Zhang
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Haotian Zeng
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Ruiyue Shi
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Xiaoxin Ma
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Lisheng Wang
- Department of Gastroenterology, The Second Clinical Medical College, Shenzhen People’s Hospital, Jinan University, Shenzhen, China
| | - Bihong Liao
- Department of Cardiology, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, China
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24
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Xie Y, Liu T, Chu Z, Jin W. Recent advances in electrochemical enzymatic biosensors based on regular nanostructured materials. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115328] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Elham Vatandost, Ghorbani-Hasan Saraei A, Chekin F, Raeisi SN, Shahidi SA. Electrochemical Sensor Based on Magnetic Fe3O4–Reduced Graphene Oxide Hybrid for Sensitive Detection of Binaphthol. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s102319352105013x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Rajarathinam T, Kwon M, Thirumalai D, Kim S, Lee S, Yoon JH, Paik HJ, Kim S, Lee J, Ha HK, Chang SC. Polymer-dispersed reduced graphene oxide nanosheets and Prussian blue modified biosensor for amperometric detection of sarcosine. Anal Chim Acta 2021; 1175:338749. [PMID: 34330447 DOI: 10.1016/j.aca.2021.338749] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/18/2022]
Abstract
A new disposable amperometric biosensor for sarcosine (Sar, a biomarker for prostate cancer) was designed based on screen-printed carbon electrodes, Prussian blue, polymer dispersed reduced graphene oxide (P-rGO) nanosheets, and sarcosine oxidase (SOx). Poly(sodium 4-styrenesulfonate-r-LAHEMA) denoted as PSSL was newly synthesized as dispersant for rGO. The P-rGO was utilized for SOx immobilization, the sulfonate and disulfide functionalities in PSSL enable physical adsorption of SOx and its bioactivity and stability properties were improved. The biosensor was optimized by various enzyme concentration, applied potential, and operating pH. Under the optimized conditions, the biosensor exhibited maximum current responses within 5 s at an applied potential of -0.1 V vs. integrated Ag/AgCl reference electrode. The biosensor had a dynamic linear range of 10-400 μM, with a sensitivity of 9.04 μA mM-1 cm-2 and a low detection limit of 0.66 μM (S/N = 3). Additionally, the biosensor possesses strong anti-interference capability, high reproducibility, and storage stability over 3 weeks. Furthermore, its clinical applicability was tested in urine samples from both prostate cancer patients and healthy control, and the analytical recoveries were satisfactory. Therefore, this biosensor has significant potential in the rapid and non-invasive point-of-care testing for prostate cancer diagnosis.
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Affiliation(s)
- Thenmozhi Rajarathinam
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Minho Kwon
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Dinakaran Thirumalai
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
| | - Seonghye Kim
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Seulah Lee
- College of Pharmacy, Pusan National University, Busan, 46241, Republic of Korea
| | - Jang-Hee Yoon
- Busan Center, Korea Basic Science Institute, Busan, 46241, Republic of Korea
| | - Hyun-Jong Paik
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Suhkmann Kim
- Department of Chemistry, Pusan National University, Busan, 46241, Republic of Korea
| | - Jaewon Lee
- College of Pharmacy, Pusan National University, Busan, 46241, Republic of Korea
| | - Hong Koo Ha
- Department of Urology and Biomedical Research Institute, Pusan National University Hospital, Pusan National University, Busan, 49241, Republic of Korea.
| | - Seung-Cheol Chang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
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27
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Biocompatibility and Angiogenic Effect of Chitosan/Graphene Oxide Hydrogel Scaffolds on EPCs. Stem Cells Int 2021; 2021:5594370. [PMID: 34113384 PMCID: PMC8154284 DOI: 10.1155/2021/5594370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/29/2021] [Accepted: 04/22/2021] [Indexed: 12/16/2022] Open
Abstract
Angiogenesis in the field of tissue engineering has attracted significant attention. Graphene oxide has become a promising nanomaterial in tissue engineering for its unique biochemical properties. Therefore, herein, a series of chitosan (CS)/graphene oxide (GO) hydrogel scaffolds were synthesized by crosslinking CS and GO at different concentrations (0.1, 0.5, and 1.0 wt.%) using genipin. Compared with the CS hydrogel scaffolds, the CS/GO hydrogel scaffolds have a better network structure and mechanical strength. Then, we used endothelial progenitor cells (EPCs) extracted from human umbilical cord blood and cocultured these EPCs with the as-prepared scaffolds. The scaffolds with 0.1 and 0.5 wt.%GO showed no considerable cytotoxicity, could promote the proliferation of EPCs and tube formation, and upregulated the expressions of CD34, VEGF, MMP9, and SDF-1 in EPCs compared to the case of the scaffold with 1.0 wt.%GO. This study shows that the addition of graphene oxide improves the structure of chitosan hydrogel and enhances the proliferation activity and angiogenic capacity of EPCs.
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Manousi N, Plastiras OE, Deliyanni EA, Zachariadis GA. Green Bioanalytical Applications of Graphene Oxide for the Extraction of Small Organic Molecules. Molecules 2021; 26:molecules26092790. [PMID: 34065150 PMCID: PMC8126010 DOI: 10.3390/molecules26092790] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022] Open
Abstract
Bioanalysis is the scientific field of the quantitative determination of xenobiotics (e.g., drugs and their metabolites) and biotics (e.g., macromolecules) in biological matrices. The most common samples in bioanalysis include blood (i.e., serum, plasma and whole blood) and urine. However, the analysis of alternative biosamples, such as hair and nails are gaining more and more attention. The main limitations for the determination of small organic compounds in biological samples is their low concentration in these matrices, in combination with the sample complexity. Therefore, a sample preparation/analyte preconcentration step is typically required. Currently, the development of novel microextraction and miniaturized extraction techniques, as well as novel adsorbents for the analysis of biosamples, in compliance with the requirements of Green Analytical Chemistry, is in the forefront of research in analytical chemistry. Graphene oxide (GO) is undoubtedly a powerful adsorbent for sample preparation that has been successfully coupled with a plethora of green extraction techniques. GO is composed of carbon atoms in a sp2 single-atom layer of a hybrid connection, and it exhibits high surface area, as well as good mechanical and thermal stability. In this review, we aim to discuss the applications of GO and functionalized GO derivatives in microextraction and miniaturized extraction techniques for the determination of small organic molecules in biological samples.
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Affiliation(s)
- Natalia Manousi
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Correspondence: (N.M.); (G.A.Z.)
| | - Orfeas-Evangelos Plastiras
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Eleni A. Deliyanni
- Laboratory of Chemical and Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George A. Zachariadis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Correspondence: (N.M.); (G.A.Z.)
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Sravya S, RamaDevi D, Belachew N, Rao KE, Basavaiah K. Vitamin C assisted synthesis of rGO-Ag/PANI nanocomposites for improved photocatalytic degradation of pharmaceutical wastes. RSC Adv 2021; 11:12030-12035. [PMID: 35423761 PMCID: PMC8697029 DOI: 10.1039/d1ra00171j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/10/2021] [Indexed: 11/21/2022] Open
Abstract
A highly efficient visible light active polyaniline (PANI)/Ag composites grafted reduced graphene oxide (rGO-Ag/PANI) was prepared for the efficient photocatalytic degradation of paracetamol. The structural, morphological, and light absorption properties of the as-synthesized rGO-Ag/PANI were characterized by UV-Visible (UV-Vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Paracetamol was taken as a model water pollutant to investigate the photocatalytic degradation efficiency of the rGO-PANI/Ag nanocomposites under visible light radiation. The result shows the degradation of paracetamol to be 99.6% in the acidic medium (pH 5) and 75.76% in the basic medium (pH 9), respectively. The enhanced degradation efficiency is attributed to the synergetic effect of rGO, PANI, and Ag NPs in the nanocomposites. This synergy of the rGO-Ag/PANI is explained by the strong adsorption efficiency, charge separation, and light absorption in the visible region.
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Affiliation(s)
- S Sravya
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
| | - Dharmasoth RamaDevi
- AU College of Pharmaceutical Sciences, Andhra University Visakhapatnam-530003 India
| | - Neway Belachew
- Department of Chemistry, Debre Birhan University Debre Berhan Ethiopia
| | - K Eswara Rao
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
| | - K Basavaiah
- Department of Inorganic and Analytical Chemistry, Andhra University Visakhapatnam-530003 India
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Yu D, Yin Q, Wang J, Yang J, Chen Z, Gao Z, Huang Q, Li S. SERS-Based Immunoassay Enhanced with Silver Probe for Selective Separation and Detection of Alzheimer's Disease Biomarkers. Int J Nanomedicine 2021; 16:1901-1911. [PMID: 33707945 PMCID: PMC7943543 DOI: 10.2147/ijn.s293042] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 02/09/2021] [Indexed: 12/22/2022] Open
Abstract
Purpose Developing a sensitive SERS-based method to quantitatively detect serum biomarkers (Aβ1-42 and P-Tau-181) for the early diagnosis of Alzheimer’s disease (AD). Methods In this study, a novel SERS-based sandwich immunoassay, which consists of tannin-capped silver nanoparticles and magnetic graphene oxide (Fe3O4@GOs), was developed. We firstly applied this method for the detection of protein standards in buffer solution, obtaining the regression equation. Then, its potential value on real serum samples of AD was further explored. Results The detection linear range of Aβ1-42 and P-Tau-181 protein standards were observed to range from 100 pg mL−1 to 10 fg mL−1, 100 pg mL−1 to 1 fg mL−1 respectively. We finally explored clinical application of the proposed method in 63 serum samples. As a result, P-tau-181 differentiated AD from non-AD dementia patients (AUC = 0.770), with a more favored ROC than Aβ1-42 (AUC = 0.383). Conclusion The developed SERS-based immunoassay is successfully applied to the determination of Aβ1-42 and P-Tau-181 in human serum specimens, which provides a promising tool for the early diagnosis of AD.
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Affiliation(s)
- Dan Yu
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, 212013, People's Republic of China
| | - Qilong Yin
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Jiwei Wang
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Jian Yang
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Zimeng Chen
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Zihan Gao
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Qingli Huang
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China.,Public Experimental Research of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
| | - Shibao Li
- Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221000, People's Republic of China
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Silva AD, Paschoalino WJ, Damasceno JPV, Kubota LT. Structure, Properties, and Electrochemical Sensing Applications of Graphene‐Based Materials. ChemElectroChem 2020. [DOI: 10.1002/celc.202001168] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alexsandra D. Silva
- Department of Analytical Chemistry Institute of Chemistry University of Campinas P.O. Box 6154 13084-971 Campinas SP Brazil
| | - Waldemir J. Paschoalino
- Department of Analytical Chemistry Institute of Chemistry University of Campinas P.O. Box 6154 13084-971 Campinas SP Brazil
| | - João Paulo V. Damasceno
- Department of Analytical Chemistry Institute of Chemistry University of Campinas P.O. Box 6154 13084-971 Campinas SP Brazil
| | - Lauro T. Kubota
- Department of Analytical Chemistry Institute of Chemistry University of Campinas P.O. Box 6154 13084-971 Campinas SP Brazil
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Rashid JIA, Kannan V, Ahmad MH, Mon AA, Taufik S, Miskon A, Ong KK, Yusof NA. An electrochemical sensor based on gold nanoparticles-functionalized reduced graphene oxide screen printed electrode for the detection of pyocyanin biomarker in Pseudomonas aeruginosa infection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111625. [PMID: 33545813 DOI: 10.1016/j.msec.2020.111625] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 09/12/2020] [Accepted: 10/09/2020] [Indexed: 12/23/2022]
Abstract
Multidrug resistant Pseudomonas aeruginosa (P. aeruginosa) is known to be a problematic bacterium for being a major cause of opportunistic and nosocomial infections. In this study, reduced graphene oxide decorated with gold nanoparticles (AuNPs/rGO) was utilized as a new sensing material for a fast and direct electrochemical detection of pyocyanin as a biomarker of P. aeruginosa infections. Under optimal condition, the developed electrochemical pyocyanin sensor exhibited a good linear range for the determination of pyocyanin in phosphate-buffered saline (PBS), human saliva and urine at a clinically relevant concentration range of 1-100 μM, achieving a detection limit of 0.27 μM, 1.34 μM, and 2.3 μM, respectively. Our developed sensor demonstrated good selectivity towards pyocyanin in the presence of interfering molecule such as ascorbic acid, uric acid, NADH, glucose, and acetylsalicylic acid, which are commonly found in human fluids. Furthermore, the developed sensor was able to discriminate the signal with and without the presence of pyocyanin directly in P. aeruginosa culture. This proposed technique demonstrates its potential application in monitoring the presence of P. aeruginosa infection in patients.
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Affiliation(s)
- Jahwarhar Izuan Abdul Rashid
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia.
| | - Vayithiswary Kannan
- Faculty of Defence Science and Technology, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia; Centre for Research Management and Innovation, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Muhammad Hafiz Ahmad
- Faculty of Defence Science and Technology, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Aye Aye Mon
- Faculty of Medicine and Defence Health, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Safura Taufik
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Azizi Miskon
- Centre for Research Management and Innovation, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia; Department of Electrical and Electronics Engineering, Faculty of Engineering, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Keat Khim Ong
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, 57000 Federal Territory of Kuala Lumpur, Malaysia
| | - Nor Azah Yusof
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
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Guo T, Cheng L, Zhao H, Liu Y, Yang Y, Liu J, Wu Q. The C. elegans miR-235 regulates the toxicity of graphene oxide via targeting the nuclear hormone receptor DAF-12 in the intestine. Sci Rep 2020; 10:16933. [PMID: 33037257 PMCID: PMC7547681 DOI: 10.1038/s41598-020-73712-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 09/04/2020] [Indexed: 11/09/2022] Open
Abstract
The increased application of graphene oxide (GO), a new carbon-based engineered nanomaterial, has generated a potential toxicity in humans and the environment. Previous studies have identified some dysregulated microRNAs (miRNAs), such as up-regulated mir-235, in organisms exposed to GO. However, the detailed mechanisms of the dysregulation of miRNA underlying GO toxicity are still largely elusive. In this study, we employed Caenorhabditis elegans as an in vivo model to investigate the biological function and molecular basis of mir-235 in the regulation of GO toxicity. After low concentration GO exposure, mir-235 (n4504) mutant nematodes were sensitive to GO toxicity, implying that mir-235 mediates a protection mechanism against GO toxicity. Tissue-specific assays suggested that mir-235 expressed in intestine is required for suppressing the GO toxicity in C. elegans. daf-12, a gene encoding a member of the steroid hormone receptor superfamily, acts as a target gene of mir-235 in the nematode intestine in response to GO treatment, and RNAi knockdown of daf-12 suppressed the sensitivity of mir-235(n4503) to GO toxicity. Further genetic analysis showed that DAF-12 acted in the upstream of DAF-16 in insulin/IGF-1 signaling pathway and PMK-1 in p38 MAPK signaling pathway in parallel to regulate GO toxicity. Altogether, our results revealed that mir-235 may activate a protective mechanism against GO toxicity by suppressing the DAF-12-DAF-16 and DAF-12-PMK-1 signaling cascade in nematodes, which provides an important molecular basis for the in vivo toxicity of GO at the miRNA level.
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Affiliation(s)
- Tiantian Guo
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China
| | - Lu Cheng
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China
| | - Huimin Zhao
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China
| | - Yingying Liu
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China
| | - Yunhan Yang
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China
| | - Jie Liu
- Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Qiuli Wu
- Institute of Nephrology, Zhong Da Hospital, Medical School, Southeast University, Nanjing, China.
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Immunosensors containing solution blow spun fibers of poly(lactic acid) to detect p53 biomarker. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111120. [DOI: 10.1016/j.msec.2020.111120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 04/22/2020] [Accepted: 05/24/2020] [Indexed: 01/28/2023]
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Menazea A, Ahmed M. Synthesis and antibacterial activity of graphene oxide decorated by silver and copper oxide nanoparticles. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128536] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Yang Z, Pan Y, Chen T, Li L, Zou W, Liu D, Xue D, Wang X, Lin G. Cytotoxicity and Immune Dysfunction of Dendritic Cells Caused by Graphene Oxide. Front Pharmacol 2020; 11:1206. [PMID: 32973494 PMCID: PMC7461934 DOI: 10.3389/fphar.2020.01206] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 07/24/2020] [Indexed: 01/15/2023] Open
Abstract
Graphene, known as “black gold”, has important applications in various fields. In previous studies, it has been proved that graphene oxide (GO) which is a derivative of graphene has low toxicity. However, the immunotoxicity of GO has not been fully elucidated. In this work, we used DC2.4 cell line to investigate the in vitro immunotoxicity of two types of GO, mono-layer GO (mono-GO) and multi-layer GO (multi- GO). We found that mono-GO had less effect on cell viability than multi-GO, but both mono-GO and multi-GO significantly induced the generation of ROS in DC2.4 cells. Interestingly, mono-GO caused DC2.4 cells to aggregate, thus changed the cell morphology significantly. However, no similar influence occurred for multi-GO. In addition, the results showed that these two GOs obviously enhance the release of TNF-α by DC2.4 cells with and without LPS stimulation. GO did not affect the level of IL-6 released from DC2.4 cells, but multi-GO promoted the release of IL-6 while mono-GO inhibited the production of IL-6 when cells were in response to LPS stimulation. Whole-transcriptome sequencing analysis found some immune-related differentially expressed genes including H2-DMb1, Ncbp3, Oas2, Men1, Fas, Cd320, Cd244, and Tinagl1 which are engaged in the immune system process. These results suggested that both mono-GO and multi-GO are immunotoxic to DC2.4 cells, which provides important basis for subsequent biological and clinical medical applications.
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Affiliation(s)
- Zhiwen Yang
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Yongning Pan
- Department of Disease Prevention and Control, Shenzhen Baoan District Health Bureau, Shenzhen, China
| | - Tingting Chen
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Li Li
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Wenyi Zou
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Dongmeng Liu
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Dahui Xue
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Xiaomei Wang
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Guimiao Lin
- Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, Shenzhen Key Lab of Synthetic Biology, Department of Physiology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
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A Brief Description of Cyclic Voltammetry Transducer-Based Non-Enzymatic Glucose Biosensor Using Synthesized Graphene Electrodes. APPLIED SYSTEM INNOVATION 2020. [DOI: 10.3390/asi3030032] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The essential disadvantages of conventional glucose enzymatic biosensors such as high fabrication cost, poor stability of enzymes, pH value-dependent, and dedicated limitations, have been increasing the attraction of non-enzymatic glucose sensors research. Beneficially, patients with diabetes could use this type of sensor as a fourth-generation of glucose sensors with a very low cost and high performance. We demonstrate the most common acceptable transducer for a non-enzymatic glucose biosensor with a brief description of how it works. The review describes the utilization of graphene and its composites as new materials for high-performance non-enzymatic glucose biosensors. The electrochemical properties of graphene and the electrochemical characterization using the cyclic voltammetry (CV) technique of electrocatalysis electrodes towards glucose oxidation have been summarized. A recent synthesis method of the graphene-based electrodes for non-enzymatic glucose sensors have been introduced along with this study. Finally, the electrochemical properties such as linearity, sensitivity, and the limit of detection (LOD) for each sensor are introduced with a comparison with each other to figure out their strengths and weaknesses.
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Abstract
A diversity of chemicals is used to produce fire retardants (FRs); some of the main group of chemicals are hazardous to the environment as well as to human life; however, expandable graphite (EG) can be a gateway to a more environmentally friendly FRs or intumescent fire retardants (IFRs). Researchers define intumescent as the swelling of a particular substance placed between a heat source and an underlying substrate when they are heated. EG is a material with extraordinary thermophysical and mechanical properties. The referred EG properties are unparalleled. EG is a low-density carbon material having a series of unique properties: developed specific surface, binder-free pressing capacity, stability to aggressive media, and low thermal conductivity. Therefore, EG is a promising material both for research work and for industrial applications. The primary goal of this literature review was to report current knowledge on the use of EG as a fire retardant for cellulose and cellulose-modified materials. EG is produced, among other methods, by thermal shock of graphite oxide under forming gas. When exposed to heat, EG will expand. The expansion mechanism was presented in this review. Equally important to this review is the knowledge related to cellulose thermal degradation and cellulose impact on the development of science and technology.
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Forkasiewicz A, Dorociak M, Stach K, Szelachowski P, Tabola R, Augoff K. The usefulness of lactate dehydrogenase measurements in current oncological practice. Cell Mol Biol Lett 2020; 25:35. [PMID: 32528540 PMCID: PMC7285607 DOI: 10.1186/s11658-020-00228-7] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/21/2020] [Indexed: 12/28/2022] Open
Abstract
One of the hallmarks of cancer cells is increased energy requirements associated with the higher rate of cellular proliferative activity. Metabolic changes in rapidly dividing cancer cells are closely associated with increased uptake of glucose and abnormal activity of lactate dehydrogenase (LDH), which regulates the processing of glucose to lactic acid. As serum LDH levels were found to be commonly increased in cancer patients and correlated with poor clinical outcome and resistance to therapy, the determination of LDH has become a standard supportive tool in diagnosing cancers or monitoring the effects of cancer treatment. The aim of this review is to summarize the current knowledge about methods and the practical utility for measuring both the total LDH and LDH isoenzymatic activities in the diagnosis, prognosis and prediction of cancer diseases.
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Affiliation(s)
- Agata Forkasiewicz
- Department of Surgical Education, Wroclaw Medical University, ul. Sklodowskiej-Curie 66, 50-369 Wroclaw, Poland
| | - Maja Dorociak
- Department of Surgical Education, Wroclaw Medical University, ul. Sklodowskiej-Curie 66, 50-369 Wroclaw, Poland
| | - Kamilla Stach
- Department of Biochemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Piotr Szelachowski
- Department of Surgical Education, Wroclaw Medical University, ul. Sklodowskiej-Curie 66, 50-369 Wroclaw, Poland
| | - Renata Tabola
- Second Department and Clinic of General and Oncological Surgery, Wroclaw Medical University, Wroclaw, Poland
| | - Katarzyna Augoff
- Department of Surgical Education, Wroclaw Medical University, ul. Sklodowskiej-Curie 66, 50-369 Wroclaw, Poland
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Ladmakhi HB, Chekin F, Fathi S, Raoof JB. Electrochemical sensor based on magnetite graphene oxide/ordered mesoporous carbon hybrid to detection of allopurinol in clinical samples. Talanta 2020; 211:120759. [DOI: 10.1016/j.talanta.2020.120759] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/14/2020] [Accepted: 01/17/2020] [Indexed: 12/18/2022]
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Adhikari J, Rizwan M, Keasberry NA, Ahmed MU. Current progresses and trends in carbon nanomaterials‐based electrochemical and electrochemiluminescence biosensors. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900417] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Juthi Adhikari
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of ScienceUniversiti Brunei Darussalam Gadong Brunei Darussalam
| | - Mohammad Rizwan
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of ScienceUniversiti Brunei Darussalam Gadong Brunei Darussalam
- School of Natural SciencesBangor University Bangor Wales UK
| | - Natasha Ann Keasberry
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of ScienceUniversiti Brunei Darussalam Gadong Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory, Chemical Science Programme, Faculty of ScienceUniversiti Brunei Darussalam Gadong Brunei Darussalam
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Du H, Li Z, Wang Y, Yang Q, Wu W. Nanomaterial-based Optical Biosensors for the Detection of Foodborne Bacteria. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1740733] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Han Du
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong, China
| | - Zhaojie Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Yi Wang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong, China
| | - Wei Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
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Zhang C, Feng X, He L, Zhang Y, Shao L. The interrupted effect of autophagic flux and lysosomal function induced by graphene oxide in p62-dependent apoptosis of F98 cells. J Nanobiotechnology 2020; 18:52. [PMID: 32188458 PMCID: PMC7081710 DOI: 10.1186/s12951-020-00605-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/06/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Graphene oxide (GO) nanoparticles (NPs) have been widely applied in various fields, especially in biomedical applications. Extensive studies have suggested that GO can pass through the blood-brain barrier (BBB) and induce abnormal autophagy and cytotoxicity in the central nervous system (CNS). However, the effect and specific mechanism of GO on astrocytes, the most abundant cells in the brain still has not been extensively investigated. RESULTS In this study, we systematically explored the toxicity and mechanism of GO exposure in the rat astroglioma-derived F98 cell line using molecular biological techniques (immunofluorescence staining, flow cytometry and Western blot) at the subcellular level and the signaling pathway level. Cells exposed to GO exhibited decreased cell viability and increased lactate dehydrogenase (LDH) release in a concentration- and time-dependent manner. GO-induced autophagy was evidenced by transmission electron microscopy (TEM) and immunofluorescence staining. Western blots showed that LC3II/I and p62 were upregulated and PI3K/Akt/mTOR was downregulated. Detection of lysosomal acidity and cathepsin B activity assay indicated the impairment of lysosomal function. Annexin V-FITC-PI detection showed the occurrence of apoptosis after GO exposure. The decrease in mitochondrial membrane potential (MMP) with an accompanying upregulation of cleaved caspase-3 and Bax/Bcl-2 further suggested that endogenous signaling pathways were involved in GO-induced apoptosis. CONCLUSION The exposure of F98 cells to GO can elicit concentration- and time-dependent toxicological effects. Additionally, increased autophagic response can be triggered after GO treatment and that the blocking of autophagy flux plays a vital role in GO cytotoxicity, which was determined to be related to dysfunction of lysosomal degradation. Importantly, the abnormal accumulation of autophagic substrate p62 protein can induce capase-3-mediated apoptosis. Inhibition of abnormal accumulation of autophagic cargo could alleviate the occurrence of GO-induced apoptosis in F98 cells.
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Affiliation(s)
- Chao Zhang
- Stomatological Hospital, Southern Medical University (Guangdong Provincial Stomatological Hospital), Guangzhou, 510280, China
| | - Xiaoli Feng
- Stomatological Hospital, Southern Medical University (Guangdong Provincial Stomatological Hospital), Guangzhou, 510280, China
| | - Longwen He
- Stomatological Hospital, Southern Medical University (Guangdong Provincial Stomatological Hospital), Guangzhou, 510280, China
| | - Yaqing Zhang
- Stomatological Hospital, Southern Medical University (Guangdong Provincial Stomatological Hospital), Guangzhou, 510280, China
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University (Guangdong Provincial Stomatological Hospital), Guangzhou, 510280, China.
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou, 510515, China.
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Mousavi SM, Low FW, Hashemi SA, Samsudin NA, Shakeri M, Yusoff Y, Rahsepar M, Lai CW, Babapoor A, Soroshnia S, Goh SM, Tiong SK, Amin N. Development of hydrophobic reduced graphene oxide as a new efficient approach for photochemotherapy. RSC Adv 2020; 10:12851-12863. [PMID: 35492106 PMCID: PMC9051426 DOI: 10.1039/d0ra00186d] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/09/2020] [Indexed: 11/21/2022] Open
Abstract
Nowadays, chemotherapy is one of the crucial and common therapies in the world. So far, it has been revealed to be highly promising, yet patients suffer from the consequences of severe negative medical dosages. In order to overcome these issues, the enhancement of photothermal chemotherapy with reduced graphene oxide (rGO) as a photothermal agent (PTA) is widely utilised in current medical technologies. This is due to its high near-infrared region (NIR) response, in vitro or in vivo organism biocompatibility, low risk of side effects, and effective positive results. Moreover, rGO not only has the ability to ensure that selective cancer cells have a higher mortality rate but can also improve the growth rate of recovering tissues that are untouched by necrosis and apoptosis. These two pathways are specific diverse modalities of cell death that are distinguished by cell membrane disruption and deoxyribonucleic acid (DNA) disintegration of the membrane via phosphatidylserine exposure in the absence of cell membrane damage. Therefore, this review aimed to demonstrate the recent achievements in the modification of rGO nanoparticles as a PTA as well as present a new approach for performing photochemotherapy in the clinical setting. rGO of QD-rGO nanocomposite could absorb and convert into heat when harvested under NIR radiation, resulting cell death with reduction of fluorescence.![]()
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Pirzada M, Altintas Z. Nanomaterials for Healthcare Biosensing Applications. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5311. [PMID: 31810313 PMCID: PMC6928990 DOI: 10.3390/s19235311] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/22/2019] [Accepted: 11/27/2019] [Indexed: 12/12/2022]
Abstract
In recent years, an increasing number of nanomaterials have been explored for their applications in biomedical diagnostics, making their applications in healthcare biosensing a rapidly evolving field. Nanomaterials introduce versatility to the sensing platforms and may even allow mobility between different detection mechanisms. The prospect of a combination of different nanomaterials allows an exploitation of their synergistic additive and novel properties for sensor development. This paper covers more than 290 research works since 2015, elaborating the diverse roles played by various nanomaterials in the biosensing field. Hence, we provide a comprehensive review of the healthcare sensing applications of nanomaterials, covering carbon allotrope-based, inorganic, and organic nanomaterials. These sensing systems are able to detect a wide variety of clinically relevant molecules, like nucleic acids, viruses, bacteria, cancer antigens, pharmaceuticals and narcotic drugs, toxins, contaminants, as well as entire cells in various sensing media, ranging from buffers to more complex environments such as urine, blood or sputum. Thus, the latest advancements reviewed in this paper hold tremendous potential for the application of nanomaterials in the early screening of diseases and point-of-care testing.
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Affiliation(s)
| | - Zeynep Altintas
- Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany;
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Rajendiran K, Zhao Z, Pei DS, Fu A. Antimicrobial Activity and Mechanism of Functionalized Quantum Dots. Polymers (Basel) 2019; 11:E1670. [PMID: 31614993 PMCID: PMC6835343 DOI: 10.3390/polym11101670] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/05/2019] [Accepted: 10/09/2019] [Indexed: 02/07/2023] Open
Abstract
An essential characteristic of quantum dots (QDs) is their antimicrobial activity. Compared with conventional antibiotics, QDs not only possess photoluminescence properties for imaging and photodynamic therapy but also have high structural stability. To enhance their antimicrobial efficiency, QDs usually are functionalized by polymers, including poly(ethylene glycol), polyethyleneimine, and poly-l-lysine. Also, QDs conjugated with polymers, such as poly(vinylpyrrolidone) and polyvinylidene fluoride, are prepared as antimicrobial membranes. The main antimicrobial mechanisms of QDs are associated with inducing free radicals, disrupting cell walls/membranes, and arresting gene expression. The different mechanisms from traditional antibiotics allow QDs to play antimicrobial roles in multi-drug-resistant bacteria and fungi. Since the toxicity of the QDs on animal cells is relatively low, they have broad application in antimicrobial research as an effective alternative of traditional antibiotics.
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Affiliation(s)
- Keerthiga Rajendiran
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Zizhen Zhao
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Ailing Fu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
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Tite T, Chiticaru EA, Burns JS, Ioniţă M. Impact of nano-morphology, lattice defects and conductivity on the performance of graphene based electrochemical biosensors. J Nanobiotechnology 2019; 17:101. [PMID: 31581949 PMCID: PMC6777027 DOI: 10.1186/s12951-019-0535-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 09/24/2019] [Indexed: 02/06/2023] Open
Abstract
Diverse properties of graphenic materials have been extensively explored to determine properties that make good electrochemical nanomaterial-based biosensors. These are reviewed by critically examining the influence of graphene nano-morphology, lattice defects and conductivity. Stability, reproducibility and fabrication are discussed together with sensitivity and selectivity. We provide an outlook on future directions for building efficient electrochemical biosensors.
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Affiliation(s)
- Teddy Tite
- Faculty of Medical Engineering, University Politehnica of Bucharest, Gh Polizu 1-7, 011061 Bucharest, Romania
| | - Elena Alina Chiticaru
- Faculty of Medical Engineering, University Politehnica of Bucharest, Gh Polizu 1-7, 011061 Bucharest, Romania
| | - Jorge S. Burns
- Faculty of Medical Engineering, University Politehnica of Bucharest, Gh Polizu 1-7, 011061 Bucharest, Romania
| | - Mariana Ioniţă
- Faculty of Medical Engineering, University Politehnica of Bucharest, Gh Polizu 1-7, 011061 Bucharest, Romania
- Advanced Polymer Materials Group, University Politehnica of Bucharest, Gh Polizu 1-7, 011061 Bucharest, Romania
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