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Ndhlala AR, Kavaz Yüksel A, Çelebi N, Doğan HÖ. A General Review of Methodologies Used in the Determination of Cholesterol (C 27H 46O) Levels in Foods. Foods 2023; 12:4424. [PMID: 38137228 PMCID: PMC10742886 DOI: 10.3390/foods12244424] [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: 11/06/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Cholesterol (C27H46O) is a lipid-derived substance found in lipoproteins and cell membranes. It is also one of the main sources for the production of bile acids, vitamin D, and steroid hormones. Today, foods are evaluated by consumers not only according to their taste and nutritional content but also according to their effects on consumer health. For example, many consumers choose foods according to their cholesterol level. The cholesterol in the food can directly affect the blood cholesterol level when consumed, which can lead to cardiovascular diseases. High levels of cholesterol can lead to diet-related human diseases such as cardiac arrest, paralysis, type II diabetes, and cerebral hemorrhage. In societies with high living standards, interest in and consumption of foods that lower or have low cholesterol levels have increased recently. Accordingly, efforts to increase the variety of foods with reduced cholesterol levels are on the rise. This has indirectly led to the accurate measurement of cholesterol levels in blood and food being of great importance. Classical chemical, enzymatic, colorimetric, polarographic, chromatographic, and spectrophotometric methods; enzymatic, nonenzymatic, and electrochemical sensors; and biosensors are used for the determination of cholesterol in foods. The purpose of this review is to reveal and explore current and future trends in cholesterol detection methods in foods. This review will summarize the most appropriate and standard methods for measuring cholesterol in biological components and foods.
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Affiliation(s)
- Ashwell R. Ndhlala
- Green Biotechnologies Research Centre, School of Agricultural and Environmental Sciences, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa;
| | - Arzu Kavaz Yüksel
- Department of Food Technology, Technical Sciences Vocational School, Atatürk University, Erzurum 25030, Turkey
| | - Neslihan Çelebi
- Department of Chemical Technology, Vocational School of Technical Sciences, Ataturk University, Erzurum 25030, Turkey; (N.Ç.); (H.Ö.D.)
| | - Hülya Öztürk Doğan
- Department of Chemical Technology, Vocational School of Technical Sciences, Ataturk University, Erzurum 25030, Turkey; (N.Ç.); (H.Ö.D.)
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2
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Li S, Zhang H, Zhu M, Kuang Z, Li X, Xu F, Miao S, Zhang Z, Lou X, Li H, Xia F. Electrochemical Biosensors for Whole Blood Analysis: Recent Progress, Challenges, and Future Perspectives. Chem Rev 2023. [PMID: 37262362 DOI: 10.1021/acs.chemrev.1c00759] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Whole blood, as one of the most significant biological fluids, provides critical information for health management and disease monitoring. Over the past 10 years, advances in nanotechnology, microfluidics, and biomarker research have spurred the development of powerful miniaturized diagnostic systems for whole blood testing toward the goal of disease monitoring and treatment. Among the techniques employed for whole-blood diagnostics, electrochemical biosensors, as known to be rapid, sensitive, capable of miniaturization, reagentless and washing free, become a class of emerging technology to achieve the target detection specifically and directly in complex media, e.g., whole blood or even in the living body. Here we are aiming to provide a comprehensive review to summarize advances over the past decade in the development of electrochemical sensors for whole blood analysis. Further, we address the remaining challenges and opportunities to integrate electrochemical sensing platforms.
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Affiliation(s)
- Shaoguang Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hongyuan Zhang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Man Zhu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zhujun Kuang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xun Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Siyuan Miao
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zishuo Zhang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hui Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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3
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Electrochemical devices for cholesterol detection. J Pharm Biomed Anal 2023; 224:115195. [PMID: 36493575 DOI: 10.1016/j.jpba.2022.115195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/11/2022]
Abstract
Cholesterol can be considered as a biomarker of illnesses such as heart and coronary artery diseases or arteriosclerosis. Therefore, the fast determination of its concentration in blood is interesting as a means of achieving an early diagnosis of these unhealthy conditions. Electrochemical sensors and biosensors have become a potential tool for selective and sensitive detection of this biomolecule, combining the analytical advantages of electrochemical techniques with the selective recognition features of modified electrodes. This review covers the different approaches carried out in the development of electrochemical sensors for cholesterol, differentiating between enzymatic biosensors and non-enzymatic systems, highlighting lab-on-a-chip devices. A description of the different modification procedures of the working electrode has been included and the role of the different functional materials used has been discussed.
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Jayswal S, Ningthoujam RS, Moirangthem RS. Observation of Stark splitting in micro upconversion photoluminescence spectra of polycrystalline Ln 3+ doped Y 2O 3microspheres. NANOTECHNOLOGY 2022; 33:335702. [PMID: 35512653 DOI: 10.1088/1361-6528/ac6cf7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
In this study, Yb3+-Er3+-Tm3+doped Y2O3microspheres were synthesized using the solvothermal method. Structural, morphological, and elemental analysis was done using XRD, FESEM, and EDX characterization techniques. The optical properties of the samples were determined using UV-Vis-NIR spectroscopy and upconversion photoluminescence measurements. The anti-Stokes emission peaks from these polycrystalline phosphor microspheres were obtained using a commercial micro-photoluminescence setup equipped with a 976 nm laser as an excitation source at room temperature. It was compared with the emission spectra taken from a 2-3 mm spot size of 976 nm laser irradiation on the same sample. The micro-emission spectra were analyzed based on possible Stark splitting energy level transitions between the2S+1LJmanifolds of Er3+and Tm3+ions. A detailed mechanism is outlined for emission in the entire visible region under 976 nm laser excitation.
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Affiliation(s)
- Shefali Jayswal
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad-826004, Jharkhand, India
| | | | - Rakesh S Moirangthem
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad-826004, Jharkhand, India
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Dey N, Kumar G, Vickram AS, Mohan M, Singhania RR, Patel AK, Dong CD, Anbarasu K, Thanigaivel S, Ponnusamy VK. Nanotechnology-assisted production of value-added biopotent energy-yielding products from lignocellulosic biomass refinery - A review. BIORESOURCE TECHNOLOGY 2022; 344:126171. [PMID: 34695586 DOI: 10.1016/j.biortech.2021.126171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/13/2021] [Accepted: 10/17/2021] [Indexed: 05/22/2023]
Abstract
The need to develop sustainable alternatives for pretreatment and hydrolysis of lignocellulosic biomass (LCB) is a massive concern in the industrial sector today. Breaking down of LCB yields sugars and fuel in the bulk scale. If explored under nanotechnology, LCB can be refined to yield high-performance fuel sources. The toxicity and cost of conventional methods can be reduced by applying nanoparticles (NPs) in refining LCB. Immobilization of enzymes onto NPs or used in conjugation with nanomaterials would instill specific and eco-friendly options for hydrolyzing LCB. Nanomaterials increase the proficiency, reusability, and stability of enzymes. Notably, magnetic NPs have bagged their place in the downstream processing of LCB effluents due to their efficient separation and cost-effectiveness. The current review highlights the role of nanotechnology and its particles in refining LCB into various commercial precursors and value-added products. The relationship between nanotechnology and LCB refinery is portrayed effectively in the present study.
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Affiliation(s)
- Nibedita Dey
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai City, India
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus 4036, Stavanger, Norway
| | - A S Vickram
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai City, India
| | - Monisha Mohan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai City, India
| | - Reeta Rani Singhania
- Program of Aquatic Science and Technology, & Department of Marine Environmental Engineering, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City 811, Taiwan
| | - Anil Kumar Patel
- Program of Aquatic Science and Technology, & Department of Marine Environmental Engineering, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City 811, Taiwan
| | - Cheng-Di Dong
- Program of Aquatic Science and Technology, & Department of Marine Environmental Engineering, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City 811, Taiwan
| | - K Anbarasu
- Department of Bioinformatics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai City, India
| | - S Thanigaivel
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai City, India
| | - Vinoth Kumar Ponnusamy
- Program of Aquatic Science and Technology, & Department of Marine Environmental Engineering, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City 811, Taiwan; Department of Medicinal and Applied Chemistry. & Research Center for Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung City 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City 807, Taiwan.
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6
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Li D, Xiong Q, Liang L, Duan H. Multienzyme nanoassemblies: from rational design to biomedical applications. Biomater Sci 2021; 9:7323-7342. [PMID: 34647942 DOI: 10.1039/d1bm01106e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Multienzyme nanoassemblies (MENAs) that combine the functions of several enzymes into one entity have attracted widespread research interest due to their improved enzymatic performance and great potential for multiple applications. Considerable progress has been made to design and fabricate MENAs in recent years. This review begins with an introduction of the up-to-date strategies in designing MENAs, mainly including substrate channeling, compartmentalization and control of enzyme stoichiometry. The desirable properties that endow MENAs with important applications are also discussed in detail. Then, the recent advances in utilizing MENAs in the biomedical field are reviewed, with a particular focus on biosensing, tumor therapy, antioxidant and drug delivery. Finally, the challenges and perspectives for development of versatile MENAs are summarized.
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Affiliation(s)
- Di Li
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China. .,School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qirong Xiong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
| | - Li Liang
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
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7
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Current Developments in Lignocellulosic Biomass Conversion into Biofuels Using Nanobiotechology Approach. ENERGIES 2020. [DOI: 10.3390/en13205300] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The conversion of lignocellulosic biomass (LB) to sugar is an intricate process which is the costliest part of the biomass conversion process. Even though acid/enzyme catalysts are usually being used for LB hydrolysis, enzyme immobilization has been recognized as a potential strategy nowadays. The use of nanobiocatalysts increases hydrolytic efficiency and enzyme stability. Furthermore, biocatalyst/enzyme immobilization on magnetic nanoparticles enables easy recovery and reuse of enzymes. Hence, the exploitation of nanobiocatalysts for LB to biofuel conversion will aid in developing a lucrative and sustainable approach. With this perspective, the effects of nanobiocatalysts on LB to biofuel production were reviewed here. Several traits, such as switching the chemical processes using nanomaterials, enzyme immobilization on nanoparticles for higher reaction rates, recycling ability and toxicity effects on microbial cells, were highlighted in this review. Current developments and viability of nanobiocatalysts as a promising option for enhanced LB conversion into the biofuel process were also emphasized. Mostly, this would help in emerging eco-friendly, proficient, and cost-effective biofuel technology.
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Lopez-Barbosa N, Campaña AL, Cruz JC, Ornelas-Soto N, Osma JF. Enhanced Catalytic Dye Decolorization by Microencapsulation of Laccase from P. Sanguineus CS43 in Natural and Synthetic Polymers. Polymers (Basel) 2020; 12:polym12061353. [PMID: 32560036 PMCID: PMC7362170 DOI: 10.3390/polym12061353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/24/2022] Open
Abstract
Polymeric microcapsules with the fungal laccase from Pycnoporus sanguineus CS43 may represent an attractive avenue for the removal or degradation of dyes from wastewaters. Microcapsules of alginate/chitosan (9.23 ± 0.12 µm) and poly(styrenesulfonate) (PSS) (9.25 ± 0.35 µm) were synthesized and subsequently tested for catalytic activity in the decolorization of the diazo dye Congo Red. Successful encapsulation into the materials was verified via confocal microscopy of labeled enzyme molecules. Laccase activity was measured as a function of time and the initial reaction rates were recovered for each preparation, showing up to sevenfold increase with respect to free laccase. The ability of substrates to diffuse through the pores of the microcapsules was evaluated with the aid of fluorescent dyes and confocal microscopy. pH and thermal stability were also measured for encapsulates, showing catalytic activity for pH values as low as 4 and temperatures of about 80 °C. Scanning electron microscope (SEM) analyses demonstrated the ability of PSS capsules to avoid accumulation of byproducts and, therefore, superior catalytic performance. This was corroborated by the direct observation of substrates diffusing in and out of the materials. Compared with our PSS preparation, alginate/chitosan microcapsules studied by others degrade 2.6 times more dye, albeit with a 135-fold increase in units of enzyme per mg of dye. Similarly, poly(vinyl) alcohol microcapsules from degrade 1.7 times more dye, despite an eightfold increase in units of enzyme per mg of dye. This could be potentially beneficial from the economic viewpoint as a significantly lower amount of enzyme might be needed for the same decolorization level achieved with similar encapsulated systems.
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Affiliation(s)
- Natalia Lopez-Barbosa
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
- Department of Biomedical Engineering, Universidad de Los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia;
| | - Ana Lucía Campaña
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de Los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia;
| | - Nancy Ornelas-Soto
- Laboratorio de Nanotecnología Ambiental, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Monterrey 64849, Mexico;
| | - Johann F. Osma
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá D.C. 111711, Colombia; (N.L.-B.); (A.L.C.)
- Correspondence: ; Tel.: +57-1-339-4949
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Yadav AK, Dhiman TK, Lakshmi G, Berlina AN, Solanki PR. A highly sensitive label-free amperometric biosensor for norfloxacin detection based on chitosan-yttria nanocomposite. Int J Biol Macromol 2020; 151:566-575. [DOI: 10.1016/j.ijbiomac.2020.02.089] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/31/2020] [Accepted: 02/10/2020] [Indexed: 10/25/2022]
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10
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Zhu X, Zhao H, Shen J, Chen H, Cai X, Xu J, Wang X, Wang L, Lan M. A metal-free and preconcentration-free method for non-enzymatic amperometric determination of pentachlorophenol using a ZIF-derived hollow carbon material. Mikrochim Acta 2020; 187:224. [PMID: 32170431 DOI: 10.1007/s00604-020-4180-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/24/2020] [Indexed: 11/24/2022]
Abstract
An enzyme-free, metal-free, and preconcentration-free electrochemical sensor for pentachlorophenol assay has been fabricated. The interface of the sensor is based on a hollow zeolitic imidazolate framework-derived mesoporous carbon material (denoted as HZC/SPCE). The sensor exhibits linear amperometric response upon pentachlorophenol at 0.82 V (vs. Ag/AgCl) in the concentration range 0.001 to 26.8 mg L-1 (3.75 × 10-8~1.006 × 10-4 M) (R2 = 0.997). The sensitivity of HZC/SPCE is 3.53 × 102 μA mM-1 cm-2 with a detection limit of 2.05 × 10-9 M (S/N = 3) for pentachlorophenol. The method has been applied to the determination of pentachlorophenol in spiked food packaging samples with recoveries in the range 92.0 to 107.0%. Graphical abstract Schematic representation of the synthesis of hollow ZIFs-derived hollow carbon material. Free protons derived from tannic acid penetrated into ZIF-8 to destroy its solid framework and the outer parts covered by tannic acid were protected from further etching. After pyrolysis, the morphology of HZC remained similar to that of HZIF-8. Abbreviation: CTAB: hexadecyl trimethyl ammonium bromide; Melm: 2-methylimidazole; ZIF-8: zeolitic imidazolate framework-8; TA: tannic acid; HZIF-8: hollow zeolitic imidazolate framework-8; HZC: hollow zeolitic imidazolate frameworks (ZIFs)-derived mesoporous carbon material.
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Affiliation(s)
- Xiang Zhu
- Shanghai Tobacco Packaging Printing Co., Ltd., Shanghai Tobacco Group Co., Ltd, Shanghai, 200137, People's Republic of China
| | - Hongli Zhao
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jianmin Shen
- Shanghai Tobacco Packaging Printing Co., Ltd., Shanghai Tobacco Group Co., Ltd, Shanghai, 200137, People's Republic of China
| | - Huilan Chen
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Xuan Cai
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jijun Xu
- Shanghai Tobacco Packaging Printing Co., Ltd., Shanghai Tobacco Group Co., Ltd, Shanghai, 200137, People's Republic of China
| | - Xuan Wang
- Shanghai Tobacco Packaging Printing Co., Ltd., Shanghai Tobacco Group Co., Ltd, Shanghai, 200137, People's Republic of China
| | - Lei Wang
- Shanghai Tobacco Packaging Printing Co., Ltd., Shanghai Tobacco Group Co., Ltd, Shanghai, 200137, People's Republic of China
| | - Minbo Lan
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
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Luo JH, Li Q, Chen SH, Yuan R. Coreactant-Free Dual Amplified Electrochemiluminescent Biosensor Based on Conjugated Polymer Dots for the Ultrasensitive Detection of MicroRNA. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27363-27370. [PMID: 31287297 DOI: 10.1021/acsami.9b09339] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Generally, electrochemiluminescence (ECL) assays are performed in the presence of a coreactant. The addition of the coreactant in the detection solution would make the ECL system lack sufficient stability. In the case of dissolved oxygen as the coreactant, the unknown concentration of dissolved O2 would result in an inevitable error and a lack of reproducibility in detection. A coreactant-free ECL assay could overcome the above shortcomings and thus is an ideal choice. In this work, a coreactant-free dual amplified ECL strategy was constructed for ultrasensitive detection of microRNA (miRNA). Here, target-catalyzed hairpin assembly and enzyme-triggered DNA walker recycling amplification were integrated to achieve dual signal amplification. Carboxyl-functionalized poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-{2,1'-3}-thiadiazole)] (PFBT-COOH) dots were used as luminophores, which displayed prominent ECL performance without adding any coreactants and removing the dissolved O2. As a result, the detection of miRNA was achieved, and the linear range was from 10 aM to 5 pM, and the detection limit was low to 3.3 aM. Meanwhile, the practicability of our biosensor was investigated by analyzing the expression of miRNA in cell lysates. The PFBT-COOH dots provided a great platform for constructing coreactant-free ECL biosensors and expanded the application of conjugated polymer dots in clinical analysis.
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Affiliation(s)
- Jin-Hua Luo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Qin Li
- Gastroenterology , People's Hospital of Shapingba District of Chongqing , Chongqing 400030 , China
| | - Shi-Hong Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , China
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12
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Shrivastava M, Srivastav A, Gandhi S, Rao S, Roychoudhury A, Kumar A, Singhal R, Jha SK, Singh S. Monitoring of engineered nanoparticles in soil-plant system: A review. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.enmm.2019.100218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Nanoengineered cellulosic biohydrogen production via dark fermentation: A novel approach. Biotechnol Adv 2019; 37:107384. [PMID: 31014935 DOI: 10.1016/j.biotechadv.2019.04.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/04/2019] [Accepted: 04/16/2019] [Indexed: 02/07/2023]
Abstract
The insights of nanotechnology for cellulosic biohydrogen production through dark fermentation are reviewed. Lignocellulosic biomass to sugar generation is a complex process and covers the most expensive part of cellulose to sugar production technology. In this context, the impacts of nanomaterial on lignocellulosic biomass to biohydrogen production process have been reviewed. In addition, the feasibility of nanomaterials for implementation in each step of the cellulosic biohydrogen production is discussed for economic viability of the process. Numerous aspects such as possible replacement of chemical pretreatment method using nanostructured materials, use of immobilized enzyme for a fast rate of reaction and its reusability along with long viability of microbial cells and hydrogenase enzyme for improving the productivity are the highlights of this review. It is found that various types of nanostructured materials e.g. metallic nanoparticles (Fe°, Ni, Cu, Au, Pd, Au), metal oxide nanoparticles (Fe2O3, F3O4, NiCo2O4, CuO, NiO, CoO, ZnO), nanocomposites (Si@CoFe2O4, Fe3O4/alginate) and graphene-based nanomaterials can influence different parameters of the process and therefore may perhaps be utilized for cellulosic biohydrogen production. The emphasis has been given on the cost issue and synthesis sustainability of nanomaterials for making the biohydrogen technology cost effective. Finally, recent advancements and feasibility of nanomaterials as the potential solution for improved cellulose conversion to the biohydrogen production process have been discussed, and this is likely to assist in developing an efficient, economical and sustainable biohydrogen production technology.
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14
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Huang H, Zhu JJ. The electrochemical applications of rare earth-based nanomaterials. Analyst 2019; 144:6789-6811. [DOI: 10.1039/c9an01562k] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review presents a general description of the synthesis and electrochemical properties of rare earth-based nanomaterials and their electrochemical applications.
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Affiliation(s)
- Haiping Huang
- State Key Laboratory of Analytical Chemistry for Life Science
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science
- Key Laboratory of Mesoscopic Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
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15
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Ingrosso C, Corricelli M, Bettazzi F, Konstantinidou E, Bianco GV, Depalo N, Striccoli M, Agostiano A, Curri ML, Palchetti I. Au nanoparticle in situ decorated RGO nanocomposites for highly sensitive electrochemical genosensors. J Mater Chem B 2019; 7:768-777. [DOI: 10.1039/c8tb02514b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel hybrid nanocomposite formed by RGO flakes, surface functionalized by 1-pyrene carboxylic acid (PCA), densely and uniformly in situ decorated by Au NPs, is reported, for miRNA detection.
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Affiliation(s)
- Chiara Ingrosso
- CNR-IPCF S. S. Bari
- c/o Dep. of Chemistry
- Università di Bari
- I-70126 Bari
- Italy
| | - Michela Corricelli
- CNR-IPCF S. S. Bari
- c/o Dep. of Chemistry
- Università di Bari
- I-70126 Bari
- Italy
| | - Francesca Bettazzi
- Dep. of Chemistry Ugo Schiff
- Università degli Studi di Firenze
- Firenze
- Italy
| | | | | | - Nicoletta Depalo
- CNR-IPCF S. S. Bari
- c/o Dep. of Chemistry
- Università di Bari
- I-70126 Bari
- Italy
| | | | - Angela Agostiano
- CNR-IPCF S. S. Bari
- c/o Dep. of Chemistry
- Università di Bari
- I-70126 Bari
- Italy
| | - M. Lucia Curri
- CNR-IPCF S. S. Bari
- c/o Dep. of Chemistry
- Università di Bari
- I-70126 Bari
- Italy
| | - Ilaria Palchetti
- Dep. of Chemistry Ugo Schiff
- Università degli Studi di Firenze
- Firenze
- Italy
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16
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Singh N, Rai P, Ali MA, Kumar R, Sharma A, Malhotra BD, John R. A hollow-nanosphere-based microfluidic biosensor for biomonitoring of cardiac troponin I. J Mater Chem B 2019. [DOI: 10.1039/c9tb00126c] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cardiovascular diseases (CVDs) are the leading causes of death worldwide.
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Affiliation(s)
- Nawab Singh
- Department of Biomedical Engineering
- Indian Institute of Technology Hyderabad
- India
| | - Prabhakar Rai
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
- Wildlife Section
| | - Md. Azahar Ali
- Department of Electrical and Computer Engineering
- Iowa State University
- Ames
- USA
| | - Rudra Kumar
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
| | - Ashutosh Sharma
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur
- India
| | - B. D. Malhotra
- Department of Biotechnology
- Delhi Technological University
- Delhi-110042
- India
| | - Renu John
- Department of Biomedical Engineering
- Indian Institute of Technology Hyderabad
- India
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17
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Folate-tagged chitosan-functionalized gold nanoparticles for enhanced delivery of 5-fluorouracil to cancer cells. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0896-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Zhu W, Wang J, Zhang W, Hu N, Wang J, Huang L, Wang R, Suo Y, Wang J. Monolithic copper selenide submicron particulate film/copper foam anode catalyst for ultrasensitive electrochemical glucose sensing in human blood serum. J Mater Chem B 2018; 6:718-724. [DOI: 10.1039/c7tb02996a] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A copper selenide submicron particulate film on Cu foam, synthesized by a facile hydrothermal process, shows superior glucose sensing performance.
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Affiliation(s)
- Wenxin Zhu
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Jing Wang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Wentao Zhang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Na Hu
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Xining 810008
- China
| | - Jing Wang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Lunjie Huang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Rong Wang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
| | - Yourui Suo
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Xining 810008
- China
| | - Jianlong Wang
- College of Food Science and Engineering
- Northwest A&F University
- Yangling 712100
- China
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19
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Moonla C, Preechaworapun A, Tangkuaram T. A Single Drop Fabrication of the Cholesterol Biosensor Based on Synthesized NiFe2
O4
NPs Dispersed on PDDA-CNTs. ELECTROANAL 2017. [DOI: 10.1002/elan.201700286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chochanon Moonla
- Applied Chemistry Program, Faculty of Science; Maejo University; Chiang Mai 50290 Thailand
| | - Anchana Preechaworapun
- Chemistry Program, Faculty of Science and Technology; Pibulsongkram Rajabhat University; Phitsanulok 65000 Thailand
| | - Tanin Tangkuaram
- Applied Chemistry Program, Faculty of Science; Maejo University; Chiang Mai 50290 Thailand
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20
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Roychoudhury A, Prateek A, Chauhan N, Kumar DS, Basu S, Jha SK. Tyrosinase-Conjugated Prussian Blue-Modified Nickel Oxide Nanoparticles-Based Interface for Selective Detection of Dopamine. ChemistrySelect 2017. [DOI: 10.1002/slct.201701304] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Appan Roychoudhury
- Centre for Biomedical Engineering; Indian Institute of Technology Delhi, Hauz Khas; New Delhi 110016 India
- Department of Biomedical Engineering; All India Institute of Medical Sciences; New Delhi 110029 India
| | - Arneish Prateek
- Department of Chemical Engineering; Indian Institute of Technology Delhi, Hauz Khas; New Delhi 110016 India
| | - Neha Chauhan
- Bio-Nano Electronics Research Centre; Toyo University, Kawagoe; Saitama 350-8585 Japan
| | - D. S. Kumar
- Bio-Nano Electronics Research Centre; Toyo University, Kawagoe; Saitama 350-8585 Japan
| | - Suddhasatwa Basu
- Department of Chemical Engineering; Indian Institute of Technology Delhi, Hauz Khas; New Delhi 110016 India
| | - Sandeep K. Jha
- Centre for Biomedical Engineering; Indian Institute of Technology Delhi, Hauz Khas; New Delhi 110016 India
- Department of Biomedical Engineering; All India Institute of Medical Sciences; New Delhi 110029 India
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21
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Shi R, Li H, Wu E, Xiong L, Lv R, Guo R, Liu Y, Xu G, Kang Z, Liu J. Simultaneous enzymatic activity modulation and rapid determination of enzyme kinetics by highly crystalline graphite dots. NANOSCALE 2017; 9:8410-8417. [PMID: 28604895 DOI: 10.1039/c7nr02285a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The research field in enzyme-based biotechnology urgently requires the discovery of new materials and methods with high-performance. Here we report that highly crystalline graphite dots (GDs) can modulate enzyme activities, and simultaneously allow for real-time measurements on enzyme kinetics in combination with mass spectrometry (MS). A well-defined modulation of lipolytic activities from inhibition to enhancement can be realized by selectively coupling lipase enzymes with GDs containing specific functional groups on the surface. As a unique feature of our approach, GDs in the enzyme reaction can simultaneously serve as a versatile matrix for rapid and sensitive detection of the residual enzyme substrate, the intermediate or final product of lipolytic digestion using MS technology. Therefore, enzyme kinetic data can be collected in a real-time, high-throughput format. This work provides a new platform for enzymological research in hybrid bio-catalytic processes with advanced nanotechnology.
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Affiliation(s)
- Rui Shi
- Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China.
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22
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Influence of NH 3 plasma and Ti doping on pH-sensitive CeO 2 electrolyte-insulator-semiconductor biosensors. Sci Rep 2017; 7:2405. [PMID: 28546585 PMCID: PMC5445090 DOI: 10.1038/s41598-017-02692-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 04/13/2017] [Indexed: 11/08/2022] Open
Abstract
In this study, CeO2 pH-sensitive sensing membranes in electrolyte-insulator-semiconductor structures on silicon substrate were fabricated. To enhance sensing performance, the membrane underwent Ti doping and NH3 plasma treatment on the surface. To examine the effects of Ti doping and plasma treatment, multiple material properties evaluations were conducted using field-emission scanning electron microscopy, X-ray diffraction, atomic force microscopy, and secondary ion mass spectroscopy. Results indicate that Ti doping and plasma treatment can remove defects and enhance crystallization, thereby achieving improved pH-sensing performance of the membrane with high sensitivity, high linearity, low hysteresis voltage and low drift voltage. CeO2-based EIS membranes with Ti doping and NH3 plasma treatment show promise for future portable pH-sensitive biosensors.
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23
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Galdino NM, Brehm GS, Bussamara R, Gonçalves WDG, Abarca G, Scholten JD. Sputtering deposition of gold nanoparticles onto graphene oxide functionalized with ionic liquids: biosensor materials for cholesterol detection. J Mater Chem B 2017; 5:9482-9486. [DOI: 10.1039/c7tb02582c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The sputtering deposition of Au nanoparticles onto ionic liquid-graphene oxide combined with cholesterol oxidase affords an efficient biosensor for cholesterol detection.
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24
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Xu L, Hou Y, Zhang M, Yang X, Jenkins G, Huang W, Yao C, Wu Q. A novel electrochemical biosensor for detection of cholesterol. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516030101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Ultrasensitive detection of superoxide anion released from living cells using a porous Pt–Pd decorated enzymatic sensor. Biosens Bioelectron 2016; 79:449-56. [DOI: 10.1016/j.bios.2015.12.061] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 12/18/2015] [Accepted: 12/19/2015] [Indexed: 11/17/2022]
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26
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Liu Y, Zhang X, He D, Ma F, Fu Q, Hu Y. An amperometric glucose biosensor based on a MnO2/graphene composite modified electrode. RSC Adv 2016. [DOI: 10.1039/c6ra02680j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a novel composite of graphene/MnO2 (GR/MnO2) was successfully synthesized by a simple one-step hydrothermal method.
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Affiliation(s)
- Yuge Liu
- Key Laboratory of Tropical Fruit Biology of Ministry of Agriculture
- The South Subtropical Crop Research Institute
- Chinese Academy of Tropical Agricultural Science
- Zhanjiang
- China
| | - Xiumei Zhang
- Key Laboratory of Tropical Fruit Biology of Ministry of Agriculture
- The South Subtropical Crop Research Institute
- Chinese Academy of Tropical Agricultural Science
- Zhanjiang
- China
| | - Dongning He
- Centre of Excellence in Engineered Fibre Composites
- University of Southern Queensland
- Toowoomba
- Australia
| | - Feiyue Ma
- Key Laboratory of Tropical Fruit Biology of Ministry of Agriculture
- The South Subtropical Crop Research Institute
- Chinese Academy of Tropical Agricultural Science
- Zhanjiang
- China
| | - Qiong Fu
- Key Laboratory of Tropical Fruit Biology of Ministry of Agriculture
- The South Subtropical Crop Research Institute
- Chinese Academy of Tropical Agricultural Science
- Zhanjiang
- China
| | - Yun Hu
- Technology Center of China Tobacco Guizhou Industrial Co. Ltd
- Guiyang
- China
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27
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Malik P, Srivastava M, Verma R, Kumar M, Kumar D, Singh J. Nanostructured SnO 2 encapsulated guar-gum hybrid nanocomposites for electrocatalytic determination of hydrazine. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:432-41. [DOI: 10.1016/j.msec.2015.08.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/11/2015] [Accepted: 08/22/2015] [Indexed: 11/16/2022]
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28
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Srinivas Raghavan B, Kondath S, Anantanarayanan R, Rajaram R. Kaempferol mediated synthesis of gold nanoparticles and their cytotoxic effects on MCF-7 cancer cell line. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.08.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Rawat K, Sharma A, Solanki PR, Bohidar HB. Potential of Gelatin-Zinc Oxide Nanocomposite as Ascorbic Acid Sensor. ELECTROANAL 2015. [DOI: 10.1002/elan.201500090] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Morzycki JW, Sobkowiak A. Electrochemical oxidation of cholesterol. Beilstein J Org Chem 2015; 11:392-402. [PMID: 25977713 PMCID: PMC4419515 DOI: 10.3762/bjoc.11.45] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/03/2015] [Indexed: 12/22/2022] Open
Abstract
Indirect cholesterol electrochemical oxidation in the presence of various mediators leads to electrophilic addition to the double bond, oxidation at the allylic position, oxidation of the hydroxy group, or functionalization of the side chain. Recent studies have proven that direct electrochemical oxidation of cholesterol is also possible and affords different products depending on the reaction conditions.
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Affiliation(s)
- Jacek W Morzycki
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Andrzej Sobkowiak
- Faculty of Chemistry, Rzeszów University of Technology, P.O. Box 85, 35-959 Rzeszów, Poland
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31
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Zhu C, Yang G, Li H, Du D, Lin Y. Electrochemical sensors and biosensors based on nanomaterials and nanostructures. Anal Chem 2015; 87:230-49. [PMID: 25354297 PMCID: PMC4287168 DOI: 10.1021/ac5039863] [Citation(s) in RCA: 807] [Impact Index Per Article: 89.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chengzhou Zhu
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Guohai Yang
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - He Li
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Dan Du
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Yuehe Lin
- School
of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
- Pacific
Northwest National Laboratory, Richland, Washington 99352, United States
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32
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Solanki PR, Patel MK, Ali MA, Malhotra BD. A chitosan modified nickel oxide platform for biosensing applications. J Mater Chem B 2015; 3:6698-6708. [DOI: 10.1039/c5tb00494b] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a highly sensitive and selective electrochemical sandwich immunosensor (the analyte is “sandwiched” between two antibodies) based on chitosan modified nickel oxide nanoparticles for the detection of Vibrio cholerae.
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Affiliation(s)
- Pratima R. Solanki
- Special Centre for Nanosciences
- Jawaharlal Nehru University
- New Delhi-110067
- India
| | - Manoj Kumar Patel
- School of Biotechnology
- Jawaharlal Nehru University
- New Delhi-110067
- India
- Department of Chemistry
| | - Md. Azahar Ali
- Department of Electrical and Computer Engineering
- Iowa State University
- Ames
- USA
| | - B. D. Malhotra
- Department of Biotechnology
- Delhi Technical University
- Delhi-110042
- India
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33
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Nivethaa EAK, Dhanavel S, Narayanan V, Vasu CA, Stephen A. An in vitro cytotoxicity study of 5-fluorouracil encapsulated chitosan/gold nanocomposites towards MCF-7 cells. RSC Adv 2015. [DOI: 10.1039/c4ra11615a] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic outlining the synthesis of 5FU loaded CS/Au nanocomposite and its application.
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Affiliation(s)
- E. A. K. Nivethaa
- Material Science Centre
- Department of Nuclear Physics
- University of Madras
- Chennai-25
- India
| | - S. Dhanavel
- Material Science Centre
- Department of Nuclear Physics
- University of Madras
- Chennai-25
- India
| | - V. Narayanan
- Department of Inorganic Chemistry
- University of Madras
- Chennai 600 025
- India
| | - C. Arul Vasu
- Department of Zoology
- University of Madras
- Chennai 600 025
- India
| | - A. Stephen
- Material Science Centre
- Department of Nuclear Physics
- University of Madras
- Chennai-25
- India
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34
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Wang S, Chen W, He S, Zhao Q, Li X, Sun J, Jiang X. Mesosilica-coated ultrafine fibers for highly efficient laccase encapsulation. NANOSCALE 2014; 6:6468-6472. [PMID: 24821021 DOI: 10.1039/c4nr01166j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, we present a simple but efficient biomimetic method to encapsulate laccase on mesoporous silica-modified electrospun (ES) ultrafine fibers. Because of the mild immobilization conditions (room temperature, aqueous condition), the encapsulated laccase retained a high activity of 94%. Because of the protection from the silica layer, the laccase worked efficiently at 60 °C and retained a long-term activity in the presence of proteinase K. After recycling for 10 times the laccase still preserved 96% of its original reactivity. More remarkably, the immobilized laccase on fibers could completely recover its activity after thermal denature, while the free laccase permanently lost the activity. We also demonstrated that the laccase on silica-coated fibers exhibited an enhanced decolorization capability of Brilliant Blue KN-R (BBKN-R) as compared to the free laccase, showing its great potential for industrial applications.
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Affiliation(s)
- Shiwen Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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35
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Singh C, Pandey MK, Biradar AM, Srivastava AK, Sumana G. A bienzyme-immobilized highly efficient niobium oxide nanorod platform for biomedical application. RSC Adv 2014. [DOI: 10.1039/c4ra00215f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrophoretically deposited niobium oxide nanorods have been utilized to fabricate a high performance biosensor for specific cholesterol detection.
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Affiliation(s)
- Chandan Singh
- Biomedical Instrumentation Section
- CSIR-National Physical Laboratory
- New Delhi-110012, India
| | - M. K. Pandey
- Biomedical Instrumentation Section
- CSIR-National Physical Laboratory
- New Delhi-110012, India
| | - A. M. Biradar
- Biomedical Instrumentation Section
- CSIR-National Physical Laboratory
- New Delhi-110012, India
| | - A. K. Srivastava
- Biomedical Instrumentation Section
- CSIR-National Physical Laboratory
- New Delhi-110012, India
| | - Gajjala Sumana
- Biomedical Instrumentation Section
- CSIR-National Physical Laboratory
- New Delhi-110012, India
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