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Meng X, O'Hare D, Ladame S. Surface immobilization strategies for the development of electrochemical nucleic acid sensors. Biosens Bioelectron 2023; 237:115440. [PMID: 37406480 DOI: 10.1016/j.bios.2023.115440] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 05/20/2023] [Accepted: 05/27/2023] [Indexed: 07/07/2023]
Abstract
Following the recent pandemic and with the emergence of cell-free nucleic acids in liquid biopsies as promising biomarkers for a broad range of pathologies, there is an increasing demand for a new generation of nucleic acid tests, with a particular focus on cost-effective, highly sensitive and specific biosensors. Easily miniaturized electrochemical sensors show the greatest promise and most typically rely on the chemical functionalization of conductive materials or electrodes with sequence-specific hybridization probes made of standard oligonucleotides (DNA or RNA) or synthetic analogues (e.g. Peptide Nucleic Acids or PNAs). The robustness of such sensors is mostly influenced by the ability to control the density and orientation of the probe at the surface of the electrode, making the chemistry used for this immobilization a key parameter. This exhaustive review will cover the various strategies to immobilize nucleic acid probes onto different solid electrode materials. Both physical and chemical immobilization techniques will be presented. Their applicability to specific electrode materials and surfaces will also be discussed as well as strategies for passivation of the electrode surface as a way of preventing electrode fouling and reducing nonspecific binding.
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Affiliation(s)
- Xiaotong Meng
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK. https://in.linkedin.com/https://www.linkedin.com/profile/view?id=xiaotong-meng-888IC
| | - Danny O'Hare
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
| | - Sylvain Ladame
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
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2
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Damavandi AR, Mirmosayyeb O, Ebrahimi N, Zalpoor H, khalilian P, Yahiazadeh S, Eskandari N, Rahdar A, Kumar PS, Pandey S. Advances in nanotechnology versus stem cell therapy for the theranostics of multiple sclerosis disease. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02698-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Almeida ER, Capriles PVSZ, Dos Santos HF. Unveiling the Releasing Processes of Pt(II)-Based Anticancer Drugs from Oxidized Carbon Nanohorn: An In Silico Study. J Phys Chem B 2022; 126:4246-4260. [PMID: 35670834 DOI: 10.1021/acs.jpcb.2c02555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
About half of all cancer chemotherapies currently applied involve medication with the three worldwide approved Pt(II)-based drugs, cisplatin (cddp), carboplatin (cpx), and oxaliplatin (oxa), due to their notable antitumor activity for several cancers. However, this wide application is accompanied by severe side effects, such as nephrotoxicity, myelosuppression, and neurotoxicity, as a result of their low bioavailability and selectivity for cancer cells. To mitigate these drawbacks, the use of chemically functionalized carbon nanohorns (CNH) as nanocarriers represents a potential formulation since CNH has been noted for their biodegradability, biocompatibility, low toxicity, and cavities dimensionally compatible with small drugs. This work reports energetic and dynamic analyses of complexes formed by oxidized CNH (CNHox) and the cddp, cpx, and oxa drugs. Using unbiased molecular dynamics (MD) simulations, we show that the encapsulated formulations (cddp@CNHox, cpx@CNHox, and oxa@CNHox) were more stable by ∼11.0 kcal mol-1 than the adsorbed ones (cddp > CNHox, cpx > CNHox, and oxa > CNHox). This high stability, mainly governed by van der Waals interactions, was responsible for the drug confinement during the entire simulation time (200 ns). The biased MD simulations of the inclusion complexes confirmed the nonspontaneity of the drug release since the potentials of mean force (PMF) indicated the endergonic character of this process. Additionally, the releasing energy profiles pointed out that the free energy barrier (ΔΔG≠) for the escape from CNHox cavity follows the order oxa > cpx ∼ cddp, with the value for the oxa complex (21-26 kcal mol-1) found to be about 36 and 30% larger than those for cpx and cddp, respectively. While the approximate residence time (tres) of the oxa drug inside the CNHox cavity was 5.45 × 108 s, the same measure for the cddp and cpx drugs was 5.3 × 105 and 1.60 × 103 s. Simulations also revealed that the escape of oxa with the oxalate group facing the nanowindow was the most unfavorable process, giving tres = 1.09 × 109 s. Besides reinforcing and extending the nanovectorization of cddp, cpx, and oxa in CNHox for cancer chemotherapies, all features considered may provide interpretations for experimental data and encourage new investigations aiming to propose less aggressive treatments for oncological diseases.
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Affiliation(s)
- Eduardo R Almeida
- Núcleo de Estudos em Química Computacional (NEQC), Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
| | - Priscila V S Z Capriles
- Programa de Pós-graduação em Modelagem Computacional (PGMC), Departamento de Ciência da Computação, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
| | - Hélio F Dos Santos
- Núcleo de Estudos em Química Computacional (NEQC), Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora, MG 36036-330, Brazil
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Thangavelu D, Chen Y, Annamalai P, Ramadoss M, Narayanan V. Rationally Designed Ag@polymer@2-D LDH Nanoflakes for Bifunctional Efficient Electrochemical Sensing of 4-Nitrophenol and Water Oxidation Reaction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6518-6527. [PMID: 35084176 DOI: 10.1021/acsami.1c19077] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The rational design and demonstration of a facile sequential template-mediated strategy to construct noble-metal-free efficient bifunctional electrocatalysts for efficient oxygen evolution reaction (OER) and electrocatalytic detection of hazardous environmental 4-nitrophenol (4-NP) have continued as a major challenging task. Herein, we construct a novel Ag@polymer/NiAl LDH (designated as APL) nanohybrid as an efficient bifunctional electrocatalyst by a simple hydrolysis method. The well-fabricated APL/GCE exhibited an extensive linear range from 0.1 to 100 μM in optimized conditions. It showed a detection limit (LOD) of 0.0096 μM (9.6 nM) (S/N = 3) for 4-NP in pH 6 by differential pulse voltammetry (DPV). Meanwhile, the newly fabricated APL exhibited outstanding OER activity with a very low overpotential of 259 mV to deliver 10 mA cm-2 current density (J) at a scan rate of 5 mV/s. The Tafel plot value of APL is low (97 mV/dec) compared to that of the benchmark RuO2 due to a fast kinetic reaction. Besides, the durability of the electrocatalyst was assessed by a chronoamperometry test (CA) for 36 h at 1.55 mV vs RHE, and the long-term cycling stability was analyzed by using cyclic voltammetry (CV); after 5000 cycles, the electrocatalyst was highly stable. These demonstrated results could lead to an alternative electrocatalyst construction for the bifunctionally efficient electrochemical sensing of 4-nitrophenol and oxygen evolution reaction.
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Affiliation(s)
- Dhanasekaran Thangavelu
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
- Department of Inorganic Chemistry, University of Madras, Chennai 600025, India
| | - Yuanfu Chen
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
- School of Science, and Institute of Oxygen Supply, Tibet University, Lhasa 850000, P.R. China
| | | | - Manigandan Ramadoss
- School of Electronic Science and Engineering, and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
- Department of Inorganic Chemistry, University of Madras, Chennai 600025, India
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Rozhin P, Abdel Monem Gamal J, Giordani S, Marchesan S. Carbon Nanomaterials (CNMs) and Enzymes: From Nanozymes to CNM-Enzyme Conjugates and Biodegradation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:1037. [PMID: 35160982 PMCID: PMC8838330 DOI: 10.3390/ma15031037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 01/27/2023]
Abstract
Carbon nanomaterials (CNMs) and enzymes differ significantly in terms of their physico-chemical properties-their handling and characterization require very different specialized skills. Therefore, their combination is not trivial. Numerous studies exist at the interface between these two components-especially in the area of sensing-but also involving biofuel cells, biocatalysis, and even biomedical applications including innovative therapeutic approaches and theranostics. Finally, enzymes that are capable of biodegrading CNMs have been identified, and they may play an important role in controlling the environmental fate of these structures after their use. CNMs' widespread use has created more and more opportunities for their entry into the environment, and thus it becomes increasingly important to understand how to biodegrade them. In this concise review, we will cover the progress made in the last five years on this exciting topic, focusing on the applications, and concluding with future perspectives on research combining carbon nanomaterials and enzymes.
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Affiliation(s)
- Petr Rozhin
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;
| | - Jada Abdel Monem Gamal
- School of Chemical Sciences, Faculty of Science & Health, Dublin City University, D09 E432 Dublin, Ireland;
- Department of Chemistry, Faculty of Mathematical, Physical and Natural Sciences, University Sapienza of Rome, 00185 Rome, Italy
| | - Silvia Giordani
- School of Chemical Sciences, Faculty of Science & Health, Dublin City University, D09 E432 Dublin, Ireland;
| | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;
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Liu J, Fan Y, Chen G, Liu Y. Highly sensitive glutamate biosensor based on platinum nanoparticles decorated MXene-Ti3C2Tx for l-glutamate determination in foodstuffs. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111748] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Brain neurochemical monitoring. Biosens Bioelectron 2021; 189:113351. [PMID: 34049083 DOI: 10.1016/j.bios.2021.113351] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 05/05/2021] [Accepted: 05/13/2021] [Indexed: 02/08/2023]
Abstract
Brain neurochemical monitoring aims to provide continuous and accurate measurements of brain biomarkers. It has enabled significant advances in neuroscience for application in clinical diagnostics, treatment, and prevention of brain diseases. Microfabricated electrochemical and optical spectroscopy sensing technologies have been developed for precise monitoring of brain neurochemicals. Here, a comprehensive review on the progress of sensing technologies developed for brain neurochemical monitoring is presented. The review provides a summary of the widely measured clinically relevant neurochemicals and commonly adopted recognition technologies. Recent advances in sampling, electrochemistry, and optical spectroscopy for brain neurochemical monitoring are highlighted and their application are discussed. Existing gaps in current technologies and future directions to design industry standard brain neurochemical sensing devices for clinical applications are addressed.
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Zieba W, Czarnecka J, Rusak T, Zieba M, Terzyk AP. Nitric-Acid Oxidized Single-Walled Carbon Nanohorns as a Potential Material for Bio-Applications-Toxicity and Hemocompatibility Studies. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1419. [PMID: 33804062 PMCID: PMC8002155 DOI: 10.3390/ma14061419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/17/2021] [Accepted: 03/09/2021] [Indexed: 01/23/2023]
Abstract
The results of in vitro studies of single-walled carbon nanohorn (SWCNH) oxidized materials' cytotoxicity obtained by the cell membrane integrity (Neutral Red Uptake (NRU)) and metabolic activity (by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)) on A549 and human dermal fibroblasts (HDF) cell lines are presented. We also present hemocompatibility studies on human and porcine blood, and an erythrocyte concentrate to prove that the obtained samples will not interfere with blood components. Characterization of the materials is supplemented by ζ-potential measurements, Transmission Electron Microscope (TEM) imaging, and thermogravimetric studies (TG). The presented results show the correlation between the specific surface area of materials and the platelet aggregation, when the ID/IG ratio determined from Raman spectra correlates with hemoglobin release from the erythrocytes (in whole blood testing). A plausible mechanism explaining the observed correlations is given. The cytotoxicity and hemocompatibility studies prove that the studied materials are acceptable for use in biomedical applications, especially a sample SWCNH-ox-1.5 with the best application potential.
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Affiliation(s)
- Wojciech Zieba
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin Street 7, 87-100 Torun, Poland; (W.Z.); (M.Z.)
| | - Joanna Czarnecka
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, Lwowska Street 1, 87-100 Torun, Poland;
| | - Tomasz Rusak
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Bialystok, Kilinskiego Street 1, 15-328 Bialystok, Poland;
| | - Monika Zieba
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin Street 7, 87-100 Torun, Poland; (W.Z.); (M.Z.)
| | - Artur P. Terzyk
- Physicochemistry of Carbon Materials Research Group, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarin Street 7, 87-100 Torun, Poland; (W.Z.); (M.Z.)
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Paviolo C, Cognet L. Near-infrared nanoscopy with carbon-based nanoparticles for the exploration of the brain extracellular space. Neurobiol Dis 2021; 153:105328. [PMID: 33713842 DOI: 10.1016/j.nbd.2021.105328] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 12/19/2022] Open
Abstract
Understanding the physiology and pathology of the brain requires detailed knowledge of its complex structures as well as dynamic internal processes at very different scales from the macro down to the molecular dimensions. A major yet poorly described brain compartment is the brain extracellular space (ECS). Signalling molecules rapidly diffuse through the brain ECS which is complex and dynamic structure at numerous lengths and time scales. In recent years, characterization of the ECS using nanomaterials has made remarkable progress, including local analysis of nanoscopic dimensions and diffusivity as well as local chemical sensing. In particular, carbon nanomaterials combined with advanced optical technologies, biochemical and biophysical analysis, offer novel promises for understanding the ECS morphology as well as neuron connectivity and neurochemistry. In this review, we present the state-of-the-art in this quest, which mainly focuses on a type of carbon nanomaterial, single walled carbon nanotubes, as fluorescent nanoprobes to unveil the ECS features in the nanometre domain.
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Affiliation(s)
- Chiara Paviolo
- LP2N, Institut d'Optique Graduate School, CNRS, Université de Bordeaux, 33400 Talence, France
| | - Laurent Cognet
- LP2N, Institut d'Optique Graduate School, CNRS, Université de Bordeaux, 33400 Talence, France.
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Liu X, Ying Y, Ping J. Structure, synthesis, and sensing applications of single-walled carbon nanohorns. Biosens Bioelectron 2020; 167:112495. [PMID: 32818751 DOI: 10.1016/j.bios.2020.112495] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/20/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022]
Abstract
Single-walled carbon nanohorns (SWCNHs), a type of tapered carbon nanomaterials, are generally prepared by laser ablation method, arc method, and Joule heating method without the addition of metal catalysts, which makes them pure and environmentally friendly. The obtained aggregates of SWCNHs mainly have three different types of structure, dahlia-like, bud-like, and seed-like. Over the past few decades, they have been widely used in the fields of energy, medicine, chemistry, and sensing. The SWCNHs-based sensors have shown high sensitivity, rapid response, and excellent stability, which are mainly attributed to the excellent electrical conductivity, large electrochemical window, large specific surface area, and mechanical strength of SWCNHs. In this review, we systematically summarizes the structures, synthesis methods, and sensing applications of SWCNHs, including electrochemical sensors, photoelectrochemical sensors, electrochemiluminescence sensors, fluorescent sensors, and resistive sensors. Moreover, the development prospects of SWCNHs in this field are also discussed.
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Affiliation(s)
- Xiaoxue Liu
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China
| | - Yibin Ying
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China; Zhejiang A&F University, Hangzhou, Zhejiang, 311300, PR China
| | - Jianfeng Ping
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China.
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11
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Ibrahim M, Ibrahim H, Almandil NB, Sayed MA, Kawde A, Aldaqdouq Y. A Novel Platform Based on Au−CeO
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@MWCNT Functionalized Glassy Carbon Microspheres for Voltammetric Sensing of Valrubicin as Bladder Anticancer Drug and its Interaction with DNA. ELECTROANAL 2020. [DOI: 10.1002/elan.202060125] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohamed Ibrahim
- Department of Clinical Pharmacy Research Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Hossieny Ibrahim
- Chemistry Department Faculty of Science Assiut University Assiut Egypt
| | - Noor B. Almandil
- Department of Clinical Pharmacy Research Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Marwa A. Sayed
- Department of Industrial Pharmacy Faculty of Pharmacy Assiut University Assiut 71526 Egypt
| | - Abdel‐Nasser Kawde
- Chemistry Department College of Sciences King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Yaqeen Aldaqdouq
- College of Clinical Pharmacy Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
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12
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A New Perspective on Using Glycols in Glutamate Biosensor Design: From Stabilizing Agents to a New Containment Net. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8020023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Glutamate is a major excitatory neurotransmitter in the brain. It is involved in many normal physiological brain activities, but also neurological disorders and excitotoxicity. Hence, glutamate measurement is important both in clinical and pre-clinical studies. Pre-clinical studies often use amperometric biosensors due to their low invasiveness and the relatively small size of the devices. These devices also provide fast, real-time measurements because of their high sensitivity. In the present study, diethylene glycol (DEG), neopentyl glycol (NPG), triethylene glycol (TEG), and glycerol (GLY) were used to increase the long-term stability of glutamate biosensors. The evaluation was made by measuring variations of the main enzymatic (VMAX and KM) and analytical (Linear Region Slope (LRS)) parameters. Of the glycols tested, TEG was the most promising stabilizer, showing about twice as high VMAX maintained over a greater duration than with other stabilizers tested. It is also yielded the most stable linear region slope (LRS) values over the study duration. Moreover, we highlighted the ability of glycols to interact with enzyme molecules to form a containment network, able to maintain all the layered components of the biosensor adhering to the transducer.
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