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Ju J, Li L, Li B, Regmi S, Wang T, Xu J, Li C, Tang S. Surface-Enhanced Raman Scattering Active Core-Shell Ag NPs@Carbon Dots with Enzyme-Mimicking Activities for Label-Free Measurement Cholesterol. BIOSENSORS 2023; 13:927. [PMID: 37887120 PMCID: PMC10605028 DOI: 10.3390/bios13100927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
Serological-sensitive testing of cholesterol holds significant value in the fields of healthcare and clinical diagnosis. This study reports on the preparation of peroxidase-mimicking nanozymes through the wrapping of N, S-doped carbon dots (DCDs) on the surface of silver nanoparticles (Ag NPs@DCD). The shell-core structure of Ag NPs@DCD displays peroxidase-mimicking capability, with the potential to catalyze inactive Raman probe molecules into the Raman reporters. Furthermore, a "shell-isolated nanoparticles-enhanced Raman spectroscopy" structure exhibited an enhanced Raman signal of reporter molecules. Ag NPs@DCD were utilized to create a label-free SERS sensing system for high-performance detection of cholesterol in serum samples. These results demonstrate the potential of the novel nanozyme-based SERS approach for clinical diagnosis.
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Affiliation(s)
- Jian Ju
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- Oujiang Lab, Wenzhou 325001, China
| | - Lin Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou 325035, China;
| | - Bei Li
- School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou 325035, China;
- The State Key Lab of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Sagar Regmi
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA;
| | - Tingting Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Jiao Xu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Chaojie Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
| | - Shixing Tang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China; (L.L.); (T.W.); (J.X.); (C.L.)
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
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2
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Priyadarshini E, Pandey S, Rawat K. Gold-carbon dot (Au@Cd) nanoconjugates based electrochemical sensing of cholesterol and effect of nitrogen ion implantation on sensitivity. Biochem Biophys Res Commun 2023; 655:97-103. [PMID: 36934590 DOI: 10.1016/j.bbrc.2023.03.013] [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: 01/25/2023] [Revised: 02/20/2023] [Accepted: 03/06/2023] [Indexed: 03/09/2023]
Abstract
Serum cholesterol dysregulation is associated with prognosis and diagnosis of many diseases and effective biosensor will improvise their management. A novel electrochemical biosensor was fabricated based on gelatin-Au@CD nanoconjugate films for cholesterol detection. Initially, the surface of indium titanium oxide (ITO) coated glass was modified by drop casting of gelatin-Au@CD nanoconjugates to prepare the electrodes. Electrochemical studies for detection of bioanalytes(such as urea (U), ascorbic acid (AA), oxalic acid (OA), gallic acid (GA), cholesterol (Chox), dextrose (D), l-cysteine (Cys) and citric acid (CA)) were performed using cyclic voltammetry. The presence of nanoconjugates provided an appropriate environment for enhanced electrochemical response for cholesterol. These electrodes exhibited a linear response towards the presence of cholesterol in the linear concentration range of 2-20 mM with a correlation coefficient of 0.95, and the superior sensitivity of 1.36 μA/mM/cm2. Additionally, enhanced sensitivity (2.99 μA/mM/cm2) of nitrogen ion irradiated films up to a fluence of 1016 ions/cm2 was noticed because of morphological changes in the electrode surface brought about by irradiation. Approximately 54% enhancement was found when the ion fluence was 1016 ions/cm2. The designed nanoconjugate electrode showed excellent response towards cholesterol sensing and eliminates the requirement of any enzymes making the overall process simpler, cost-effective and allows for room temperature storage.
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Affiliation(s)
| | - Saurabh Pandey
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India.
| | - Kamla Rawat
- Department of Chemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India.
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3
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Upadhyay P, Agarwal S, Upadhyay S. Hydrophobically Modified Abelmoschus esculentus Polysaccharide Based Nanoparticles and Applications: A Review. Curr Drug Discov Technol 2022; 19:e010822207168. [PMID: 35927911 DOI: 10.2174/1570163819666220801121857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 04/07/2022] [Accepted: 05/13/2022] [Indexed: 01/27/2023]
Abstract
Nanomaterials are indeed a nanoscale technology that deals with the creation, evaluation, fabrication, and utilization of systems at the nanometre scale by manipulating their size and shape. We consider natural polysaccharides such as promising polysaccharides, which are biodegradable, nontoxic, abundant, and inexpensive bio-polymeric precursors for preparing the materials of choice in various industries. The aim is to review different methods to produce hydrophobically modified Abelmoschus esculentus nanoparticles and study the evaluation processes of these nanoparticles as given in the literature. It proved the benefits of derivatives of gum by introducing different chemical groups. The chemical functionalization of gum mainly includes the esterification, etherification, and crosslinking reactions of the hydroxyl groups and contains a special fibre which takes sugar levels in the blood under control, providing a sugar quantity suitable for the bowels. Okra contains mucilage that helps remove poisonous chemicals and bad cholesterol, often overloads the liver. Recovering from psychological conditions, like depression, general weakness, and joint healthiness can be done with Okra. Someone additionally applied it for pulmonary inflammation, bowel irritation, and sore throat. Purgative properties okra possesses are beneficial for bowel purification. It is used to counteract the acids. Fibre okra contains a valuable nutrient for intestinal microorganisms and ensures proper intestine functionality. It also protects the mucosa of the digestive tract by covering them with an extra layer because of its alkaline nature. Nanotechnology has emerged as a critical component of pharmaceutics, with many applications in drug carriers of interest aimed at improving drug clinical outcomes such as cancer, diabetes mellitus, wound care management, atopic dermatitis, cosmeceutical, etc. Beneficial outcomes of this review are discussed briefly.
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Affiliation(s)
- Prashant Upadhyay
- Faculty of Pharmacy, School of Pharmaceutical Sciences, IFTM University, Moradabad, Uttar Pradesh, India
| | - Shivani Agarwal
- Faculty of Pharmacy, School of Pharmaceutical Sciences, IFTM University, Moradabad, Uttar Pradesh, India
| | - Sukirti Upadhyay
- Faculty of Pharmacy, School of Pharmaceutical Sciences, IFTM University, Moradabad, Uttar Pradesh, India
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Recent Literature Review of Significance of Polypyrrole and Its Biocomposites in Adsorption of Dyes from Aqueous Solution. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/7047832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The usage of dyes has been tremendously augmented due to industrialization and human’s intrinsic fascination with colors. Owing to their excessive usage in industries like textiles, food, cosmetics, paints, printing etc., it is indisputably a contributing factor in aquatic pollution. Dyes effluents have emerged as a burgeoning challenge. Owing to issues such as toxicity, mutagenicity, and disturbed photosynthesis associated with dye contamination, it is crucial to look for an explication to deal with this challenge. Polypyrrole-based biocomposites have been reported as good adsorbents for textile wastewater treatment. In the last decade, numerous studies have stated the effective removal of dyes via Polypyrrole-based biocomposites. This review concentrates on the implication of different Polypyrrole-based biocomposites for decontamination of dyes and synthesis methods, characteristics, and mechanism of dyes degradation by these biocomposites from wastewater.
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Zhong J, Zhao H, Cheng Y, Feng T, Lan M, Zuo S. A high-performance electrochemical sensor for the determination of Pb(II) based on conductive dopamine polymer doped polypyrrole hydrogel. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115815] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hernandez-Martinez AR. Poly(2-Hydroxyethyl methacrylate-co-N,N-dimethylacrylamide)-Coated Quartz Crystal Microbalance Sensor: Membrane Characterization and Proof of Concept. Gels 2021; 7:151. [PMID: 34698146 PMCID: PMC8544454 DOI: 10.3390/gels7040151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 11/21/2022] Open
Abstract
Application-oriented hydrogel properties can be obtained by modifying the synthesis conditions of the materials. The purpose of this study is to achieve customized properties for sensing applications of hydrogel membranes based on poly(2-hydroxyethyl methacrylate), HEMA and N,N-dimethylacrylamide, DMAa. Copolymer p(HEMA-co-DMAa) hydrogels were prepared by varying the DMAa monomer ratio from 0-100% in 20% increments. Hydrogel membranes were characterized by attenuated infrared spectroscopy. Swelling and sorption were evaluated using cation solutions. Copolymers were also synthesized on the gold surface of quartz crystal microbalances (QCM) as coating membranes. A proof of concept was conducted for approaching the design and development of QCM sensors based on P(DMAa-co-HEMA)-membranes. Results showed that the water and ion adsorption capacity of hydrogel membranes increased with higher DMAa content. Membranes are not selective to a specific location but did show different transport features with each cation. The QCM coated with the selected membrane presented linear relationships between resonance frequency and ions concentration in solution (10-120 ppm). As a consequence, hydrogel membranes obtained are promising for the development of future biosensing devices.
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Affiliation(s)
- Angel Ramon Hernandez-Martinez
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México (UNAM), Boulevard Juriquilla 3001, Queretaro 76230, Queretaro, Mexico
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7
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Shaaban AFF, Metwally AM, Azab MM, Mahmoud AA, Ali HM. Synthesis, characterization, morphology and adsorption performance towards Cu+2 ions of nano-sized homopolymers of o-aminophenol poly(o-AP). JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02322-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Yazdi MK, Vatanpour V, Taghizadeh A, Taghizadeh M, Ganjali MR, Munir MT, Habibzadeh S, Saeb MR, Ghaedi M. Hydrogel membranes: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111023. [PMID: 32994021 DOI: 10.1016/j.msec.2020.111023] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/22/2020] [Accepted: 04/26/2020] [Indexed: 12/12/2022]
Abstract
Hydrogel membranes (HMs) are defined and applied as hydrated porous media constructed of hydrophilic polymers for a broad range of applications. Fascinating physiochemical properties, unique porous architecture, water-swollen features, biocompatibility, and special water content dependent transport phenomena in semi-permeable HMs make them appealing constructs for various applications from wastewater treatment to biomedical fields. Water absorption, mechanical properties, and viscoelastic features of three-dimensional (3D) HM networks evoke the extracellular matrix (ECM). On the other hand, the porous structure with controlled/uniform pore-size distribution, permeability/selectivity features, and structural/chemical tunability of HMs recall membrane separation processes such as desalination, wastewater treatment, and gas separation. Furthermore, supreme physiochemical stability and high ion conductivity make them promising to be utilised in the structure of accumulators such as batteries and supercapacitors. In this review, after summarising the general concepts and production processes for HMs, a comprehensive overview of their applications in medicine, environmental engineering, sensing usage, and energy storage/conservation is well-featured. The present review concludes with existing restrictions, possible potentials, and future directions of HMs.
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Affiliation(s)
- Mohsen Khodadadi Yazdi
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, Iran, Tehran.
| | - Ali Taghizadeh
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Mohsen Taghizadeh
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Muhammad Tajammal Munir
- College of Engineering and Technology, American University of the Middle East, Kuwait; Department of Chemical and Materials Engineering, The University of Auckland, New Zealand
| | - Sajjad Habibzadeh
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
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9
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Synthesis, characterization, morphology and adsorption performance towards cu+2 ions of nano-sized copolymers of anthranilic acid and o-aminophenol poly(anthranilic acid-co-o-aminophenol). JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-019-1980-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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10
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Sharma S, Joshi P, Mehtab S, Zaidi MGH, Singhal K, Siddiqi TI. Development of Non-enzymatic Cholesterol Electrochemical Sensor Based on Polyindole/Tungsten Carbide Nanocomposite. JOURNAL OF ANALYSIS AND TESTING 2020. [DOI: 10.1007/s41664-020-00117-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Maharramov AM, Hasanova UA, Suleymanova IA, Osmanova GE, Hajiyeva NE. The engineered nanoparticles in food chain: potential toxicity and effects. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1412-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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12
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Antony N, Unnikrishnan L, Mohanty S, Nayak SK. The imperative role of polymers in enzymatic cholesterol biosensors- an overview. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1576197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Neethu Antony
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Lakshmi Unnikrishnan
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Smita Mohanty
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
| | - Sanjay K. Nayak
- Laboratory for Advanced Research in Polymeric Materials, Central Institute of Plastics Engineering and Technology, Bhubaneswar, Odisha, India
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13
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Salazar P, Martín M, González-Mora JL. In situ electrodeposition of cholesterol oxidase-modified polydopamine thin film on nanostructured screen printed electrodes for free cholesterol determination. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Rahim MZA, Govender-Hondros G, Adeloju SB. A single step electrochemical integration of gold nanoparticles, cholesterol oxidase, cholesterol esterase and mediator with polypyrrole films for fabrication of free and total cholesterol nanobiosensors. Talanta 2018; 189:418-428. [DOI: 10.1016/j.talanta.2018.06.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 06/10/2018] [Accepted: 06/11/2018] [Indexed: 10/14/2022]
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15
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Lactate biosensing: The emerging point-of-care and personal health monitoring. Biosens Bioelectron 2018; 117:818-829. [DOI: 10.1016/j.bios.2018.06.054] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 06/26/2018] [Indexed: 11/19/2022]
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16
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Banerjee H, Suhail M, Ren H. Hydrogel Actuators and Sensors for Biomedical Soft Robots: Brief Overview with Impending Challenges. Biomimetics (Basel) 2018; 3:E15. [PMID: 31105237 PMCID: PMC6352708 DOI: 10.3390/biomimetics3030015] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/12/2018] [Accepted: 06/25/2018] [Indexed: 12/22/2022] Open
Abstract
There are numerous developments taking place in the field of biorobotics, and one such recent breakthrough is the implementation of soft robots-a pathway to mimic nature's organic parts for research purposes and in minimally invasive surgeries as a result of their shape-morphing and adaptable features. Hydrogels (biocompatible, biodegradable materials that are used in designing soft robots and sensor integration), have come into demand because of their beneficial properties, such as high water content, flexibility, and multi-faceted advantages particularly in targeted drug delivery, surgery and biorobotics. We illustrate in this review article the different types of biomedical sensors and actuators for which a hydrogel acts as an active primary material, and we elucidate their limitations and the future scope of this material in the nexus of similar biomedical avenues.
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Affiliation(s)
- Hritwick Banerjee
- Department of Biomedical Engineering, Faculty of Engineering, 4 Engineering Drive 3, National University of Singapore, Singapore 117583, Singapore.
- Singapore Institute for Neurotechnology (SINAPSE), Centre for Life Sciences, National University of Singapore, 28 Medical Drive, #05-COR, Singapore 117456, Singapore.
| | - Mohamed Suhail
- Department of Biomedical Engineering, Faculty of Engineering, 4 Engineering Drive 3, National University of Singapore, Singapore 117583, Singapore.
- Department of Mechancial Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India.
| | - Hongliang Ren
- Department of Biomedical Engineering, Faculty of Engineering, 4 Engineering Drive 3, National University of Singapore, Singapore 117583, Singapore.
- Singapore Institute for Neurotechnology (SINAPSE), Centre for Life Sciences, National University of Singapore, 28 Medical Drive, #05-COR, Singapore 117456, Singapore.
- National University of Singapore (Suzhou) Research Institute (NUSRI), 377 Lin Quan Street, Suzhou Industrial Park, Suzhou 215123, China.
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17
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Tavakoli J, Tang Y. Hydrogel Based Sensors for Biomedical Applications: An Updated Review. Polymers (Basel) 2017; 9:E364. [PMID: 30971040 PMCID: PMC6418953 DOI: 10.3390/polym9080364] [Citation(s) in RCA: 188] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/10/2017] [Accepted: 08/12/2017] [Indexed: 02/07/2023] Open
Abstract
Biosensors that detect and convert biological reactions to a measurable signal have gained much attention in recent years. Between 1950 and 2017, more than 150,000 papers have been published addressing the applications of biosensors in different industries, but to the best of our knowledge and through careful screening, critical reviews that describe hydrogel based biosensors for biomedical applications are rare. This review discusses the biomedical application of hydrogel based biosensors, based on a search performed through Web of Science Core, PubMed (NLM), and Science Direct online databases for the years 2000⁻2017. In this review, we consider bioreceptors to be immobilized on hydrogel based biosensors, their advantages and disadvantages, and immobilization techniques. We identify the hydrogels that are most favored for this type of biosensor, as well as the predominant transduction strategies. We explain biomedical applications of hydrogel based biosensors including cell metabolite and pathogen detection, tissue engineering, wound healing, and cancer monitoring, and strategies for small biomolecules such as glucose, lactate, urea, and cholesterol detection are identified.
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Affiliation(s)
- Javad Tavakoli
- Medical Device Research Institute, College of Science and Engineering, Flinders University, Adelaide 5042, SA, Australia.
| | - Youhong Tang
- Institute for Nano Scale Science & Technology, College of Science and Engineering, Flinders University, Adelaide 5042, SA, Australia.
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18
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Shrestha BK, Ahmad R, Shrestha S, Park CH, Kim CS. In situ synthesis of cylindrical spongy polypyrrole doped protonated graphitic carbon nitride for cholesterol sensing application. Biosens Bioelectron 2017; 94:686-693. [DOI: 10.1016/j.bios.2017.03.072] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/20/2017] [Accepted: 03/29/2017] [Indexed: 12/13/2022]
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19
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Isa NM, Baharin R, Majid RA, Rahman WAWA. Optical properties of conjugated polymer: review of its change mechanism for ionizing radiation sensor. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Naurah Mat Isa
- Malaysian Nuclear Agency; 43000 Bangi Selangor Malaysia
- Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 83100 Skudai Johor Malaysia
| | | | - Rohah A. Majid
- Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 83100 Skudai Johor Malaysia
| | - Wan Aizan W. A. Rahman
- Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 83100 Skudai Johor Malaysia
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20
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Gnana kumar G, Amala G, Gowtham SM. Recent advancements, key challenges and solutions in non-enzymatic electrochemical glucose sensors based on graphene platforms. RSC Adv 2017. [DOI: 10.1039/c7ra02845h] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review elucidates the recent advances in graphene platforms in electrochemical non-enzymatic glucose sensors and provides solutions for existing bottlenecks.
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Affiliation(s)
- G. Gnana kumar
- Department of Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - G. Amala
- Department of Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - S. M. Gowtham
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
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21
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Özer BO, Çete S. Development of a novel biosensor based on a polypyrrole–dodecylbenzene sulphonate (PPy–DBS) film for the determination of amperometric cholesterol. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:824-832. [DOI: 10.1080/21691401.2016.1178133] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Bayram Oğuz Özer
- Department of Chemistry, Institute of Science, Gazi University, Ankara, Turkey
| | - Servet Çete
- Department of Chemistry, Faculty of Science, Gazi University, Ankara, Turkey
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22
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Flower like Bi structures on Pt surface facilitating effective cholesterol biosensing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:183-189. [DOI: 10.1016/j.msec.2016.03.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 02/22/2016] [Accepted: 03/21/2016] [Indexed: 11/22/2022]
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23
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Guarino V, Zuppolini S, Borriello A, Ambrosio L. Electro-Active Polymers (EAPs): A Promising Route to Design Bio-Organic/Bioinspired Platforms with on Demand Functionalities. Polymers (Basel) 2016; 8:E185. [PMID: 30979278 PMCID: PMC6432240 DOI: 10.3390/polym8050185] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/19/2016] [Accepted: 05/04/2016] [Indexed: 11/17/2022] Open
Abstract
Through recent discoveries and new knowledge among correlations between molecular biology and materials science, it is a growing interest to design new biomaterials able to interact-i.e., to influence, to guide or to detect-with cells and their surrounding microenvironments, in order to better control biological phenomena. In this context, electro-active polymers (EAPs) are showing great promise as biomaterials acting as an interface between electronics and biology. This is ascribable to the highly tunability of chemical/physical properties which confer them different conductive properties for various applicative uses (i.e., molecular targeting, biosensors, biocompatible scaffolds). This review article is divided into three parts: the first one is an overview on EAPs to introduce basic conductivity mechanisms and their classification. The second one is focused on the description of most common processes used to manipulate EAPs in the form of two-dimensional (2D) and three-dimensional (3D) materials. The last part addresses their use in current applications in different biomedical research areas including tissue engineering, biosensors and molecular delivery.
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Affiliation(s)
- Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, Department of Chemical Sciences and Materials Technologies, National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy.
| | - Simona Zuppolini
- Institute of Polymers, Composites and Biomaterials, Department of Chemical Sciences and Materials Technologies, National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy.
| | - Anna Borriello
- Institute of Polymers, Composites and Biomaterials, Department of Chemical Sciences and Materials Technologies, National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy.
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, Department of Chemical Sciences and Materials Technologies, National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy.
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Joshi N, Sharma A, Asokan K, Rawat K, Kanjilal D. Effect of hydrogen ion implantation on cholesterol sensing using enzyme-free LAPONITE®-montmorillonite electrodes. RSC Adv 2016. [DOI: 10.1039/c5ra27523g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrochemical profiling of LAPONITE®-montmorillonite/indium tin oxide (L-MMT/ITO) electrodes irradiated with 20 keV H2+ ion beam with variable fluence ranging from 1012 to 1016 ions per cm2.
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Affiliation(s)
- Nidhi Joshi
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Abhimanyu Sharma
- Special Center for Nanosciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
- Inter University Accelerator Centre (IUAC)
| | - K. Asokan
- Inter University Accelerator Centre (IUAC)
- New Delhi 110067
- India
| | - Kamla Rawat
- Special Center for Nanosciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
- Inter University Accelerator Centre (IUAC)
| | - D. Kanjilal
- Inter University Accelerator Centre (IUAC)
- New Delhi 110067
- India
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25
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Saxena U, Das A. Nanomaterials towards fabrication of cholesterol biosensors: Key roles and design approaches. Biosens Bioelectron 2016; 75:196-205. [DOI: 10.1016/j.bios.2015.08.042] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 02/07/2023]
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26
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Xu Z, Cheng X, Tan J, Gan X. Fabrication of multiwalled carbon nanotube-polyaniline/platinum nanocomposite films toward improved performance for a cholesterol amperometric biosensor. Biotechnol Appl Biochem 2015; 63:757-764. [DOI: 10.1002/bab.1447] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 09/25/2015] [Indexed: 11/10/2022]
Affiliation(s)
- ZeHong Xu
- College of Chemistry and Chemical Engineering; Yibin University; Yibin Sichuan People's Republic of China
| | - XiaoDan Cheng
- College of Chemistry and Chemical Engineering; Yibin University; Yibin Sichuan People's Republic of China
| | - JianHong Tan
- College of Chemistry and Chemical Engineering; Yibin University; Yibin Sichuan People's Republic of China
| | - Xianxue Gan
- College of Chemistry and Chemical Engineering; Yibin University; Yibin Sichuan People's Republic of China
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27
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Hirai Y, Koshino M, Matsumura Y, Atobe M. Synthesis of Spherical Polymer Nanoparticles Reflecting Size of Monomer Droplets Formed by Tandem Acoustic Emulsification. CHEM LETT 2015. [DOI: 10.1246/cl.150740] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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One-step electrochemical detection of cholesterol in the presence of suitable K₃Fe(CN)₆/phosphate buffer mediator by an electrochemical approach. Talanta 2015; 140:96-101. [PMID: 26048829 DOI: 10.1016/j.talanta.2015.03.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/12/2015] [Accepted: 03/14/2015] [Indexed: 11/22/2022]
Abstract
One-step approach of cholesterol biosensor was fabricated onto smart micro-chips based on cholesterol oxidase (ChOx) co-immobilized thioglycolic acid self-assembled monolayer (TGA-SAM) for biomedical applications. The selective cholesterol biosensor was investigated with modified tiny micro-chip (Au/SAM/ChOx) by the facile and reliable cyclic voltammetric (CV) method in a K3Fe(CN)6/phosphate buffer (PB) system. The modified micro-chip displayed a large dynamic range (1.0 nmol L(-1) to 1.0 mmol L(-1)), lower detection limit (~0.49 nmol L(-1), based on S/N~3), higher sensitivity (~93.75 µA µmol L(-2) cm(-2)), good linearity (correlation coefficient r(2), 0.9995), lower sample volume (<50.0 μL), and good stability as well as reproducibility. The Au/TGA system was implemented for a facile and simple approach to the immobilization of ChOx onto micro-chip, which can offer analytical access to a large group of enzymes for a wide range of bio-molecule applications in health-care and biomedical fields. This integrated microchip provides a promising low-cost platform for the sensitive and rapid detection of biomolecules using miniatured samples.
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Kubo T, Arimura S, Tominaga Y, Naito T, Hosoya K, Otsuka K. Molecularly Imprinted Polymers for Selective Adsorption of Lysozyme and Cytochrome c Using a PEG-Based Hydrogel: Selective Recognition for Different Conformations Due to pH Conditions. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00834] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Takuya Kubo
- Graduate
School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shunsuke Arimura
- Graduate
School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuichi Tominaga
- Structural
Materials Research Institute, National Institute of Advanced Industrial Science and Technology, 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
| | - Toyohiro Naito
- Graduate
School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Ken Hosoya
- Graduate
School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo
Hangicho, Kyoto 606-8522, Japan
| | - Koji Otsuka
- Graduate
School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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30
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A Cholesterol Biosensor Based on the NIR Electrogenerated-Chemiluminescence (ECL) of Water-Soluble CdSeTe/ZnS Quantum Dots. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.073] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Bunyakul N, Baeumner AJ. Combining electrochemical sensors with miniaturized sample preparation for rapid detection in clinical samples. SENSORS (BASEL, SWITZERLAND) 2014; 15:547-64. [PMID: 25558994 PMCID: PMC4327035 DOI: 10.3390/s150100547] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 12/19/2014] [Indexed: 12/12/2022]
Abstract
Clinical analyses benefit world-wide from rapid and reliable diagnostics tests. New tests are sought with greatest demand not only for new analytes, but also to reduce costs, complexity and lengthy analysis times of current techniques. Among the myriad of possibilities available today to develop new test systems, amperometric biosensors are prominent players-best represented by the ubiquitous amperometric-based glucose sensors. Electrochemical approaches in general require little and often enough only simple hardware components, are rugged and yet provide low limits of detection. They thus offer many of the desirable attributes for point-of-care/point-of-need tests. This review focuses on investigating the important integration of sample preparation with (primarily electrochemical) biosensors. Sample clean up requirements, miniaturized sample preparation strategies, and their potential integration with sensors will be discussed, focusing on clinical sample analyses.
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Affiliation(s)
- Natinan Bunyakul
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand.
| | - Antje J Baeumner
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg 93053, Germany.
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32
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Sekretaryova AN, Beni V, Eriksson M, Karyakin AA, Turner APF, Vagin MY. Cholesterol self-powered biosensor. Anal Chem 2014; 86:9540-7. [PMID: 25164485 DOI: 10.1021/ac501699p] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Monitoring the cholesterol level is of great importance, especially for people with high risk of developing heart disease. Here we report on reagentless cholesterol detection in human plasma with a novel single-enzyme, membrane-free, self-powered biosensor, in which both cathodic and anodic bioelectrocatalytic reactions are powered by the same substrate. Cholesterol oxidase was immobilized in a sol-gel matrix on both the cathode and the anode. Hydrogen peroxide, a product of the enzymatic conversion of cholesterol, was electrocatalytically reduced, by the use of Prussian blue, at the cathode. In parallel, cholesterol oxidation catalyzed by mediated cholesterol oxidase occurred at the anode. The analytical performance was assessed for both electrode systems separately. The combination of the two electrodes, formed on high surface-area carbon cloth electrodes, resulted in a self-powered biosensor with enhanced sensitivity (26.0 mA M(-1) cm(-2)), compared to either of the two individual electrodes, and a dynamic range up to 4.1 mM cholesterol. Reagentless cholesterol detection with both electrochemical systems and with the self-powered biosensor was performed and the results were compared with the standard method of colorimetric cholesterol quantification.
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Affiliation(s)
- Alina N Sekretaryova
- Department of Physics, Chemistry and Biology, Linköping University , SE-581 83 Linköping, Sweden
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Rahman MM. Reusable and mediator-free cholesterol biosensor based on cholesterol oxidase immobilized onto TGA-SAM modified smart bio-chips. PLoS One 2014; 9:e100327. [PMID: 24949733 PMCID: PMC4065056 DOI: 10.1371/journal.pone.0100327] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/21/2014] [Indexed: 11/22/2022] Open
Abstract
A reusable and mediator-free cholesterol biosensor based on cholesterol oxidase (ChOx) was fabricated based on self-assembled monolayer (SAM) of thioglycolic acid (TGA) (covalent enzyme immobilization by dropping method) using bio-chips. Cholesterol was detected with modified bio-chip (Gold/Thioglycolic-acid/Cholesterol-oxidase i.e., Au/TGA/ChOx) by reliable cyclic voltammetric (CV) technique at room conditions. The Au/TGA/ChOx modified bio-chip sensor demonstrates good linearity (1.0 nM to 1.0 mM; R = 0.9935), low-detection limit (∼0.42 nM, SNR∼3), and higher sensitivity (∼74.3 µAµM−1cm−2), lowest-small sample volume (50.0 μL), good stability, and reproducibility. To the best of our knowledge, this is the first statement with a very high sensitivity, low-detection limit, and low-sample volumes are required for cholesterol biosensor using Au/TGA/ChOx-chips assembly. The result of this facile approach was investigated for the biomedical applications for real samples at room conditions with significant assembly (Au/TGA/ChOx) towards the development of selected cholesterol biosensors, which can offer analytical access to a large group of enzymes for wide range of biomedical applications in health-care fields.
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department & Center of Excellence for Advanced Materials Research (CEAMR), Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- * E-mail:
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34
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Barfidokht A, Gooding JJ. Approaches Toward Allowing Electroanalytical Devices to be Used in Biological Fluids. ELECTROANAL 2014. [DOI: 10.1002/elan.201400097] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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35
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Gholivand MB, Khodadadian M. Amperometric cholesterol biosensor based on the direct electrochemistry of cholesterol oxidase and catalase on a graphene/ionic liquid-modified glassy carbon electrode. Biosens Bioelectron 2014; 53:472-8. [DOI: 10.1016/j.bios.2013.09.074] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/29/2013] [Accepted: 09/30/2013] [Indexed: 12/17/2022]
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36
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A sepiolite modified conducting polymer based biosensor. Colloids Surf B Biointerfaces 2013; 111:549-55. [DOI: 10.1016/j.colsurfb.2013.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 06/13/2013] [Accepted: 07/03/2013] [Indexed: 11/19/2022]
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37
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Availability of polymeric nanoparticles for specific enhanced and targeted drug delivery. Ther Deliv 2013; 4:1261-78. [DOI: 10.4155/tde.13.84] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Over the past 20–30 years there has been quite a number of studies interested in polymeric nanoparticle (PNP) systems as a pharmaceutical approach for poorly soluble drugs, peptide drugs, gene and antibodies. Now, the products based on the PNP technologies are used in the fields of medical science, pharmaceutical science, tissue engineering and clothing, food and housing. This review focuses attention on PNPs for specific enhanced and targeted drug delivery of therapeutic drugs including peptide drugs as well as drug delivery applications of such systems. Outcomes from recent studies on polymers, how to make PNPs, pharmacokinetics and pharmacodynamics of PNPs, and the release profiles from PNPs and related systems are also described, including their pharmacokinetics and pharmacodynamics, if available. In addition, the latest PNP trends and will be described.
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38
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Li JP, Gu HN. A Selective Cholesterol Biosensor Based on Composite Film Modified Electrode for Amperometric Detection. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200600075] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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39
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Khalil AA, Shaaban AF, Azab MM, Mahmoud AA, Metwally AM. Synthesis, characterization and morphology of polyanthranilic acid micro- and nanostructures. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0142-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Tominaga Y, Kubo T, Sueyoshi K, Hosoya K, Otsuka K. Synthesis of poly(ethylene glycol)-based hydrogels and their swelling/shrinking response to molecular recognition. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26700] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yuichi Tominaga
- Graduate School of Environmental Studies; Tohoku University; Aoba 6-6-20, Aramaki, Aoba-ku Sendai 9808579 Japan
- Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 6158510 Japan
| | - Takuya Kubo
- Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 6158510 Japan
| | - Kenji Sueyoshi
- Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 6158510 Japan
| | - Ken Hosoya
- Graduate School of Life and Environmental Sciences; Kyoto Prefectural University; 1-5 Hangi-cho, Shimogamo, Sakyo-ku Kyoto 6068522 Japan
| | - Koji Otsuka
- Graduate School of Engineering; Kyoto University; Katsura, Nishikyo-ku Kyoto 6158510 Japan
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41
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An integrated sensing system for detection of cholesterol based on TiO2–graphene–Pt–Pd hybridnanocomposites. Biosens Bioelectron 2013; 42:532-8. [DOI: 10.1016/j.bios.2012.10.048] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 10/08/2012] [Accepted: 10/15/2012] [Indexed: 11/20/2022]
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42
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Zhang M, Yuan R, Chai Y, Wang C, Wu X. Cerium oxide-graphene as the matrix for cholesterol sensor. Anal Biochem 2013; 436:69-74. [PMID: 23380308 DOI: 10.1016/j.ab.2013.01.022] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 01/15/2013] [Accepted: 01/22/2013] [Indexed: 11/19/2022]
Abstract
A simple and sensitive electrogenerated chemiluminescence (ECL) cholesterol biosensor was prepared based on cerium oxide-graphene (CeO(2)-graphene) composites as an efficient matrix. CeO(2)-graphene composites were prepared by depositing CeO(2) onto graphene and were characterized by scanning electron microscopy. The experimental results demonstrated that CeO(2)-graphene could catalyze the ECL of a luminol-H(2)O(2) (hydrogen peroxide) system to amplify the luminol ECL signal greatly. In addition, the use of CeO(2)-graphene provided a better biocompatible microenvironment for the immobilized enzyme, resulting in excellent stability and a long lifetime of the ECL biosensor. The surface assembly process, ECL behaviors, and electrochemistry of the biosensor were investigated in detail. The quantity of cholesterol was in the linear range from 12 μM to 7.2 mM with a detection limit of 4.0 μM (signal/noise = 3). In addition, the biosensor exhibited outstanding reproducibility, long-term stability, and selectivity. Moreover, this cholesterol biosensor offers an alternative analytical method with low cost and high speed.
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Affiliation(s)
- Meihe Zhang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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Singh K, Chauhan R, Solanki PR, Basu T. Development of Impedimetric Biosensor for Total Cholesterol Estimation Based on Polypyrrole and Platinum Nanoparticle Multi Layer Nanocomposite. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijoc.2013.34038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Kumar H, Rani R. Development of biosensors for the detection of biological warfare agents: its issues and challenges. Sci Prog 2013; 96:294-308. [PMID: 24244972 PMCID: PMC10365506 DOI: 10.3184/003685013x13777066241280] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This review discusses current development in biosensors for the detection of biological warfare agents (BWAs). BWAs include bacteria, virus and toxins that are added deliberately into air water and food to spread terrorism and cause disease or death. The rapid and unambiguous detection and identification of BWAs with early warning signals for detecting possible biological attack is a major challenge for government agencies particularly military and health. The detection devices--biosensors--can be classified (according to their physicochemical transducers) into four types: electrochemical, nucleic acid, optical and piezoelectric. Advantages and limitations of biosensors are discussed in this review followed by an assessment of the current state of development of different types of biosensors. The research and development in biosensors for biological warfare agent detection is of great interest for the public as well as for governments.
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Affiliation(s)
- Harish Kumar
- Department of Chemistry, Ch. Devi Lal University, Sirsa, Haryana 125 055, India.
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45
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Liu Z, Lu Y, Zhang M, Wan W, Luo G. Controllable preparation of uniform polystyrene nanospheres with premix membrane emulsification. J Appl Polym Sci 2012. [DOI: 10.1002/app.38662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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Abstract
Fabrication of an enzyme amperometric biosensor for glucose via electropolymerization of pyrrole in the presence of glucose oxidase onto a hydrogel coated platinum electrode is hereby established as a viable biotransducer fabrication method. Platinum micro- (φ=25 μm) and macro- (φ=100 μm) electrodes were electrochemically activated and chemically modified with 3-aminopropyl-trimethoxysilane (APTMS), functionalized with acryloyl(polyethyleneglycol)-N-hydroxysuccinamide (ACRL-PEG-NHS), dipped into a polyHEMA based hydrogel cocktail and UV cross-linked. Electropolymerization of Py in the presence of GOx produced glucose responsive biotransducers that showed; (i) a 4-fold reduction in sensitivity compared with directly electropolymerized PPy films, (ii) an electropolymerization charge density dependence of biotransducer sensitivity and enzyme activity that was maximal at 1.0 mC/cm(2) with an apparent K(M) of 33 mM, (iii) interference screening of ascorbic acid and (iv) a temporal increase in sensitivity with storage over a 17 days period. This method has the ability to precisely and quantitatively add enzyme catalytic bioactivity to metal or semiconductor biointerfaces for applications in biosensors, bioelectronics and bionics.
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48
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SPE biosensor for cholesterol in serum samples based on electrochemiluminescent luminol copolymer. Talanta 2011; 86:178-85. [DOI: 10.1016/j.talanta.2011.08.057] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 08/16/2011] [Accepted: 08/28/2011] [Indexed: 11/24/2022]
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49
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50
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High-performance electrochemical biosensor for the detection of total cholesterol. Biosens Bioelectron 2011; 26:4508-13. [DOI: 10.1016/j.bios.2011.05.011] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 04/27/2011] [Accepted: 05/05/2011] [Indexed: 11/18/2022]
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