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She Z, Zou H, You L. Tuning the selectivity of amino acid recognition with dynamic covalent bond constrained fluorophores in aqueous media. Org Biomol Chem 2022; 20:6897-6904. [PMID: 35972458 DOI: 10.1039/d2ob01361d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The recognition and discrimination of amino acids are generating continuous interest due to their importance. Herein we developed a series of dynamic covalent reaction constrained aldehyde-derived fluorescent probes for the binding of amino acids with tunable selectivity. Diverse emission behaviors were obtained via pH triggered movement of ring-chain tautomerization equilibrium of aldehyde probes. By taking advantage of the distinct pKa and reactivity of aldehyde probes and amino acids, unique fluorescence signaling patterns were generated, and the selectivity for amino acid recognition was further modulated. The selective recognition of Cys/Hcy was attained at pH 7.4 as a result of thiazolidine formation. The manipulation of the reactivity at pH 10 enabled the realization of high selectivity for His and Cys, respectively. Moreover, pH and redox stimuli-responsive dynamic covalent networks were constructed for the regulation of amino acid recognition. The strategies and results described should be appealing in many aspects, including dynamic assemblies, molecular sensing, biological labeling, and smart materials.
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Affiliation(s)
- Zijian She
- College of Chemistry and Material Science, Fujian Normal University, Fuzhou 350007, China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
| | - Hanxun Zou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
| | - Lei You
- College of Chemistry and Material Science, Fujian Normal University, Fuzhou 350007, China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. .,Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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A Review on Flexible Electrochemical Biosensors to Monitor Alcohol in Sweat. BIOSENSORS 2022; 12:bios12040252. [PMID: 35448313 PMCID: PMC9026542 DOI: 10.3390/bios12040252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022]
Abstract
The continued focus on improving the quality of human life has encouraged the development of increasingly efficient, durable, and cost-effective products in healthcare. Over the last decade, there has been substantial development in the field of technical and interactive textiles that combine expertise in electronics, biology, chemistry, and physics. Most recently, the creation of textile biosensors capable of quantifying biometric data in biological fluids is being studied, to detect a specific disease or the physical condition of an individual. The ultimate goal is to provide access to medical diagnosis anytime and anywhere. Presently, alcohol is considered the most commonly used addictive substance worldwide, being one of the main causes of death in road accidents. Thus, it is important to think of solutions capable of minimizing this public health problem. Alcohol biosensors constitute an excellent tool to aid at improving road safety. Hence, this review explores concepts about alcohol biomarkers, the composition of human sweat and the correlation between alcohol and blood. Different components and requirements of a biosensor are reviewed, along with the electrochemical techniques to evaluate its performance, in addition to construction techniques of textile-based biosensors. Special attention is given to the determination of biomarkers that must be low cost and fast, so the use of biomimetic materials to recognize and detect the target analyte is turning into an attractive option to improve electrochemical behavior.
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Naresh V, Lee N. A Review on Biosensors and Recent Development of Nanostructured Materials-Enabled Biosensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:1109. [PMID: 33562639 PMCID: PMC7915135 DOI: 10.3390/s21041109] [Citation(s) in RCA: 345] [Impact Index Per Article: 115.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/18/2022]
Abstract
A biosensor is an integrated receptor-transducer device, which can convert a biological response into an electrical signal. The design and development of biosensors have taken a center stage for researchers or scientists in the recent decade owing to the wide range of biosensor applications, such as health care and disease diagnosis, environmental monitoring, water and food quality monitoring, and drug delivery. The main challenges involved in the biosensor progress are (i) the efficient capturing of biorecognition signals and the transformation of these signals into electrochemical, electrical, optical, gravimetric, or acoustic signals (transduction process), (ii) enhancing transducer performance i.e., increasing sensitivity, shorter response time, reproducibility, and low detection limits even to detect individual molecules, and (iii) miniaturization of the biosensing devices using micro-and nano-fabrication technologies. Those challenges can be met through the integration of sensing technology with nanomaterials, which range from zero- to three-dimensional, possessing a high surface-to-volume ratio, good conductivities, shock-bearing abilities, and color tunability. Nanomaterials (NMs) employed in the fabrication and nanobiosensors include nanoparticles (NPs) (high stability and high carrier capacity), nanowires (NWs) and nanorods (NRs) (capable of high detection sensitivity), carbon nanotubes (CNTs) (large surface area, high electrical and thermal conductivity), and quantum dots (QDs) (color tunability). Furthermore, these nanomaterials can themselves act as transduction elements. This review summarizes the evolution of biosensors, the types of biosensors based on their receptors, transducers, and modern approaches employed in biosensors using nanomaterials such as NPs (e.g., noble metal NPs and metal oxide NPs), NWs, NRs, CNTs, QDs, and dendrimers and their recent advancement in biosensing technology with the expansion of nanotechnology.
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Affiliation(s)
- Varnakavi. Naresh
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Korea
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Negm NA, Abubshait HA, Abubshait SA, Abou Kana MTH, Mohamed EA, Betiha MM. Performance of chitosan polymer as platform during sensors fabrication and sensing applications. Int J Biol Macromol 2020; 165:402-435. [PMID: 33007321 DOI: 10.1016/j.ijbiomac.2020.09.130] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023]
Abstract
Chitosan is an important polymer produced from deacetylation of several sea and insects crusts. Due to its environmental fate and biological biocompatibility, it can be used in several biological and environmental applications. Sensing of biological compounds in human bodies and also in serum, blood, and different body fluids has found an important application instead of direct determination of the body fluids using complicated tools. Sensing process of biological compounds during bio-analysis of the biological systems, especially human fluids lack of several parameters including: high sensitivity, repeatability, speed of analysis and biocompatibility of the used analytical methods, especially in-vivo analysis. That was due to the time between sample handling and sample determination can change various components and concentrations of the bio-compounds. The need for in-situ analysis was directed the researchers for biosensors to overcome the upgrading problems of bio-analysis. Biosensors were the future of this issue. Chitosan can reserve as great platform for fabrication of different sensors to determine the elements, compounds and body bioactive compounds. The presence of different terminal amino and hydroxyl groups within chitosan framework facilitates the immobilization of different biomarkers to be used as sensing elements for the determined compounds. The use of chitosan as sensors platform was enhanced by using chitosan in its nanoforms.
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Affiliation(s)
- Nabel A Negm
- Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.
| | - Haya A Abubshait
- Basic Sciences Department, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Samar A Abubshait
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; Basic & Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Maram T H Abou Kana
- National Institute of Laser Enhanced Sciences (NILES), Cairo University, Egypt
| | - Eslam A Mohamed
- Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
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Mohammadi L, Khavasi HR. Anthracene-Tagged UiO-67-MOF as Highly Selective Aqueous Sensor for Nanoscale Detection of Arginine Amino Acid. Inorg Chem 2020; 59:13091-13097. [PMID: 32869635 DOI: 10.1021/acs.inorgchem.0c01045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the present paper, new functionalized UiO-67 metal-organic frameworks (MOF) which contain aromatic tagged groups such as phenyl, naphthyl, and anthracene have been synthesized, characterized, and used for sensing water-soluble amino acids. The results show that anthracene-tagged UiO-67-MOF is shown to act as a highly efficient and selective aqueous sensor for arginine over other water-soluble amino acids in nanoscale. Upon adding an increasing amount of arginine, PL bands of the anth-UiO-67 MOF quenched completely, while there is no perturbation in the PL bands for other amino acid observed. This MOF allows a selective ratiometric detection of arginine without any interference from other amino acids.
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Affiliation(s)
- Leila Mohammadi
- Department of Inorganic Chemistry and Catalysis, Shahid Beheshti University, General Campus, Evin, Tehran 1983963113, Iran
| | - Hamid Reza Khavasi
- Department of Inorganic Chemistry and Catalysis, Shahid Beheshti University, General Campus, Evin, Tehran 1983963113, Iran
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Liu Y, Huangfu M, Wu P, Jiang M, Zhao X, Liang L, Xie L, Bai J, Wang J. Post-imparting Brønsted acidity into an amino-functionalized MOF as a bifunctional luminescent turn-ON sensor for the detection of aluminum ions and lysine. Dalton Trans 2019; 48:13834-13840. [PMID: 31482925 DOI: 10.1039/c9dt02962a] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel aldehyde- and amino-functionalized luminescent metal-organic framework, Cd-TCHO, was constructed through the solvothermal reaction of 4,4',4''-tricarboxytriphenylamine, 2-amino-3-pyridinecarboxaldehyde and cadmium nitrate and was characterized. Post-synthetically oxidizing the aldehyde groups into carboxylate groups afforded a new complex, Cd-TCOOH, and this successful conversion process was confirmed by FT-IR and 1H NMR studies. With the Brønsted acidic sites inside the cavities of Cd-TCOOH, it could be used as a luminescent sensor for Al3+ detection with a high selectivity and sensitivity (LOD = 0.54 ppb), which could be attributed to the coordination between free Brønsted acidic sites and Al3+. Importantly, it could also detect Lys among 20 kinds of natural amino acids; the selectivity, sensitivity and the sensing mechanism are discussed in detail. Also, both of the sensing processes were carried out in the HEPES buffer.
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Affiliation(s)
- Yanhong Liu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Mengjie Huangfu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Pengyan Wu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Min Jiang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Xiaoli Zhao
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Lili Liang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Liheng Xie
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Jianguo Bai
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
| | - Jian Wang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
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Wang J, Liu Y, Jiang M, Li Y, Xia L, Wu P. Aldehyde-functionalized metal–organic frameworks for selective sensing of homocysteine over Cys, GSH and other natural amino acids. Chem Commun (Camb) 2018; 54:1004-1007. [DOI: 10.1039/c7cc08414e] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Aldehyde-functionalized luminescent MOFs represent the first example of MOF-implicated sensors for discriminating Hcy from Cys and GSH.
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Affiliation(s)
- Jian Wang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Yanhong Liu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Min Jiang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Yang Li
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Lingling Xia
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Pengyan Wu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
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Zhang H, Li C, Chen D, Zhao J, Jiao X, Xia Y. Facile preparation of Prussian blue analogue Co3[Co(CN)6]2with fine-tuning color transition temperature as thermochromic material. CrystEngComm 2017. [DOI: 10.1039/c7ce00384f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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MATSUI Y, HAMAMOTO K, KITAZUMI Y, SHIRAI O, KANO K. Diffusion-controlled Mediated Electron Transfer-type Bioelectrocatalysis Using Microband Electrodes as Ultimate Amperometric Glucose Sensors. ANAL SCI 2017; 33:845-851. [DOI: 10.2116/analsci.33.845] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yukina MATSUI
- Division of Applied Life Science, Graduate School of Agriculture, Kyoto University
| | - Katsumi HAMAMOTO
- Division of Applied Life Science, Graduate School of Agriculture, Kyoto University
| | - Yuki KITAZUMI
- Division of Applied Life Science, Graduate School of Agriculture, Kyoto University
| | - Osamu SHIRAI
- Division of Applied Life Science, Graduate School of Agriculture, Kyoto University
| | - Kenji KANO
- Division of Applied Life Science, Graduate School of Agriculture, Kyoto University
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11
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Bui-Thi-Tuyet V, Trippé-Allard G, Ghilane J, Randriamahazaka H. Surface and Electrochemical Properties of Polymer Brush-Based Redox Poly(Ionic Liquid). ACS APPLIED MATERIALS & INTERFACES 2016; 8:28316-28324. [PMID: 27136186 DOI: 10.1021/acsami.6b02107] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Redox-active poly(ionic liquid) poly(3-(2-methacryloyloxy ethyl)-1-(N-(ferrocenylmethyl) imidazolium bis(trifluoromethylsulfonyl)imide deposited onto electrode surfaces has been prepared using surface-initiated atom transfer radical polymerization SI-ATRP. The process starts by electrochemical immobilization of initiator layer, and then methacrylate monomer carrying ferrocene and imidazolium units is polymerized in ionic liquid media via SI-ATRP process. The surfaces analyses of the polymer exhibit a well-defined polymer brushlike structure and confirm the presence of ferrocene and ionic moieties within the film. Furthermore, the electrochemical investigations of poly(redox-active ionic liquid) in different media demonstrate that the electron transfer is not restricted by the rate of counterion migration into/out of the polymer. The attractive electrochemical performance of these materials is further demonstrated by performing electrochemical measurement, of poly(ferrocene ionic liquid), in solvent-free electrolyte. The facile synthesis of such highly ordered electroactive materials based ionic liquid could be useful for the fabrication of nanostructured electrode suitable for performing electrochemistry in solvent free electrolyte. We also demonstrate possible applications of the poly(FcIL) as electrochemically reversible surface wettability system and as electrochemical sensor for the catalytic activity toward the oxidation of tyrosine.
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Affiliation(s)
- Van Bui-Thi-Tuyet
- Nano-Electro-Chemistry Group, ITODYS, UMR 7086 CNRS, Université Paris Diderot, Sorbonne Paris Cité , 15 rue Jean-Antoine de Baïf, 75205 Paris, France
| | - Gaëlle Trippé-Allard
- Nano-Electro-Chemistry Group, ITODYS, UMR 7086 CNRS, Université Paris Diderot, Sorbonne Paris Cité , 15 rue Jean-Antoine de Baïf, 75205 Paris, France
| | - Jalal Ghilane
- Nano-Electro-Chemistry Group, ITODYS, UMR 7086 CNRS, Université Paris Diderot, Sorbonne Paris Cité , 15 rue Jean-Antoine de Baïf, 75205 Paris, France
| | - Hyacinthe Randriamahazaka
- Nano-Electro-Chemistry Group, ITODYS, UMR 7086 CNRS, Université Paris Diderot, Sorbonne Paris Cité , 15 rue Jean-Antoine de Baïf, 75205 Paris, France
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12
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Amperometric sensor based on multi-walled carbon nanotube and poly (Bromocresol purple) modified carbon paste electrode for the sensitive determination of L-tyrosine in food and biological samples. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.08.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Lee SY, Kim EJ, Kim JS, Hwang I, Chung TD. Multiplexed and spatiotemporal measurements of glutamate secreted by neurons and bacteria. Chem Commun (Camb) 2016; 52:11854-11856. [PMID: 27722537 DOI: 10.1039/c6cc04192b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By applying an in vivo biotinylation platform, glutamate-sensing protein can be easily immobilized on streptavidin-functionalized magnetic microbeads, which expands the detection modality for the spatiotemporal measurements of glutamate secreted by adherent neuronal cells and suspension microbial cells using fluorescence microscopy and microplate photometers.
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Affiliation(s)
- S Y Lee
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - E J Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - J S Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - I Hwang
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea.
| | - T D Chung
- Department of Chemistry, Seoul National University, Seoul, 08826, Korea. and Advanced Institutes of Convergence Technology, Suwon-Si, Gyeonggi-do 16229, Korea
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14
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Affiliation(s)
- Xianting Ding
- School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Med-X Research Institute, Shanghai, China
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15
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Wu P, Jiang M, Hu X, Wang J, He G, Shi Y, Li Y, Liu W, Wang J. Amide-containing luminescent metal–organic complexes as bifunctional materials for selective sensing of amino acids and reaction prompting. RSC Adv 2016. [DOI: 10.1039/c5ra27806f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Shukla S, Govender P, Tiwari A. Polymeric Micellar Structures for Biosensor Technology. ADVANCES IN BIOMEMBRANES AND LIPID SELF-ASSEMBLY 2016. [DOI: 10.1016/bs.abl.2016.04.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Josypčuk O, Barek J, Josypčuk B. Construction and Application of Flow Enzymatic Biosensor Based of Silver Solid Amalgam Electrode for Determination of Sarcosine. ELECTROANAL 2015. [DOI: 10.1002/elan.201500246] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Kerekovic I, Milardovic S, Palcic M, Grabaric Z. Characterization of cysteamine self assembled on gold functionalized with nitrilotriacetic acid and evaluation of copper(II) binding capacity with adsorption transfer stripping voltammetry. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhu S, Zhang J, Zhao XE, Wang H, Xu G, You J. Electrochemical behavior and voltammetric determination of L-tryptophan and L-tyrosine using a glassy carbon electrode modified with single-walled carbon nanohorns. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1138-9] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shukla SK, Mishra AK, Arotiba OA, Mamba BB. Chitosan-based nanomaterials: a state-of-the-art review. Int J Biol Macromol 2013; 59:46-58. [PMID: 23608103 DOI: 10.1016/j.ijbiomac.2013.04.043] [Citation(s) in RCA: 420] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 03/02/2013] [Accepted: 04/12/2013] [Indexed: 11/26/2022]
Abstract
This manuscript briefly reviews the extensive research as well as new developments on chitosan based nanomaterials for various applications. Chitosan is a biocompatible and biodegradable polymer having immense structural possibilities for chemical and mechanical modification to generate novel properties and functions in different fields especially in the biomedical field. Over the last era, research in functional biomaterials such as chitosan has led to the development of new drug delivery system and superior regenerative medicine, currently one of the most quickly growing fields in the area of health science. Chitosan is known as a biomaterial due to its biocompatibility, biodegradability, and non-toxic properties. These properties clearly point out that chitosan has greater potential for future development in different fields of science namely drug delivery, gene delivery, cell imaging, sensors and also in the treatment as well as diagnosis of some diseases like cancer. Chitosan based nanomaterials have superior physical and chemical properties such as high surface area, porosity, tensile strength, conductivity, photo-luminescent as well as increased mechanical properties as comparison to pure chitosan. This review highlights the recent research on different aspect of chitosan based nanomaterials, including their preparation and application.
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Affiliation(s)
- Sudheesh K Shukla
- Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
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Abstract
The effect of physical scaling on one dimensional (1-D) conducting polypyrrole (Ppy) nanowire device has been successfully studied. The synthesis, electrical characterization and ammonia gas sensing with 1-D Ppy nanowire device have been carried out in the present investigation. Ppy nanowires having ~80 to ~200 nm in diameter were synthesized by electrochemical polymerization in alumina template and 1.77 to 3 µm Ppy nanowire length were maintain by varying the distance between electrodes gap. We further demonstrated that gas sensors based on 1-D Ppy nanowire having high aspect ratio (length to diameter ratio, L:D) exhibits good sensitivity towards ammonia, and provided a reliable detection at concentration as low as approximately 1 ppm based on principal of physical scaling co-related to response resistance.
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Li D, Wen Y, He H, Xu J, Liu M, Yue R. Polypyrrole-multiwalled carbon nanotubes composites as immobilizing matrices of ascorbate oxidase for the facile fabrication of an amperometric vitamin C biosensor. J Appl Polym Sci 2012. [DOI: 10.1002/app.36526] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Durand F, Limoges B, Mano N, Mavré F, Miranda-Castro R, Savéant JM. Effect of substrate inhibition and cooperativity on the electrochemical responses of glucose dehydrogenase. Kinetic characterization of wild and mutant types. J Am Chem Soc 2011; 133:12801-9. [PMID: 21780841 DOI: 10.1021/ja204637d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Thanks to its insensitivity to dioxygen and to its good catalytic reactivity, and in spite of its poor substrate selectivity, quinoprotein glucose dehydrogenase (PQQ-GDH) plays a prominent role among the redox enzymes that can be used for analytical purposes, such as glucose detection, enzyme-based bioaffinity assays, and the design of biofuel cells. A detailed kinetic analysis of the electrochemical catalytic responses, leading to an unambiguous characterization of each individual steps, seems a priori intractable in view of the interference, on top of the usual ping-pong mechanism, of substrate inhibition and of cooperativity effects between the two identical subunits of the enzyme. Based on simplifications suggested by extended knowledge previously acquired by standard homogeneous kinetics, it is shown that analysis of the catalytic responses obtained by means of electrochemical nondestructive techniques, such as cyclic voltammetry, with ferrocene methanol as a mediator, does allow a full characterization of all individual steps of the catalytic reaction, including substrate inhibition and cooperativity and, thus, allows to decipher the reason that makes the enzyme more efficient when the neighboring subunit is filled with a glucose molecule. As a first practical illustration of this electrochemical approach, comparison of the native enzyme responses with those of a mutant (in which the asparagine amino acid in position 428 has been replaced by a cysteine residue) allowed identification of the elementary steps that makes the mutant type more efficient than the wild type when cooperativity between the two subunits takes place, which is observed at large mediator and substrate concentrations. A route is thus opened to structure-reactivity relationships and therefore to mutagenesis strategies aiming at better performances in terms of catalytic responses and/or substrate selectivity.
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Affiliation(s)
- Fabien Durand
- Centre de Recherche Paul Pascal, Universit de Bordeaux, UPR 8641, Avenue Albert Schweitzer, 33600 Pessac, France
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Kong X, Shi W, Zhao J, Wei M, Duan X. Layer-by-layer assembly of electroactive dye/inorganic matrix film and its application as sensor for ascorbic acid. Talanta 2011; 85:493-8. [DOI: 10.1016/j.talanta.2011.04.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 04/07/2011] [Accepted: 04/10/2011] [Indexed: 12/20/2022]
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Fan Y, Liu JH, Lu HT, Zhang Q. Electrochemistry and voltammetric determination of L-tryptophan and L-tyrosine using a glassy carbon electrode modified with a Nafion/TiO2-graphene composite film. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0556-9] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Arakawa T, Koshida T, Gessei T, Miyajima K, Takahashi D, Kudo H, Yano K, Mitsubayashi K. Biosensor for L-phenylalanine based on the optical detection of NADH using a UV light emitting diode. Mikrochim Acta 2011. [DOI: 10.1007/s00604-010-0536-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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27
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Kong X, Zhao J, Han J, Zhang D, Wei M, Duan X. Fabrication of Naphthol green B/layered double hydroxide nanosheets ultrathin film and its application in electrocatalysis. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.081] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shirale DJ, Bangar MA, Chen W, Myung NV, Mulchandani A. Effect of (L:D) Aspect Ratio on Single Polypyrrole Nanowire FET Device. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2010; 114:13375-13380. [PMID: 21743822 PMCID: PMC3130544 DOI: 10.1021/jp104377e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Effect of different aspect ratio (length to diameter ratio, L:D) on single polypyrrole (Ppy) nanowire based field effect transistor (FET) sensor for real time pH monitoring was studied. Ppy nanowires with diameters of ~60, ~80 and ~200 nm were synthesized using electrochemical deposition inside anodized aluminium oxide (AAO) template and were assembled using AC dielectrophoretic alignment followed by maskless anchoring on a pair of gold electrodes separated with different gap lengths. Microfabricated gold electrode patterns with gap size between 1 - 4 μm were developed by means of MEMS technique (photolithography). Using field effect transistor geometry with pair of microfabricated gold contact electrodes serving as a source and a drain, and a platinum (Pt) mesh (anchored in a microfluidic channel) was used as a gate electrode. When effect of different aspect ratio of the nanowire were compared, higher sensitivity was recorded for higher aspect ratio. The sensitivity was further improved by modulating the gate potential. These FET sensors based on single polypyrrole nanowire exhibited excellent and tunable sensitivity towards pH variations.
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Affiliation(s)
- Dhammanand J Shirale
- Department of Chemical and Environmental Engineering and Center for Nanoscale Science and Engineering, University of California, Riverside, CA 92521, USA
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Abstract
Different strategies used to biofunctionalize CNTs with proteins, from direct physical adsorption on pristine CNTs to chemical treatments to achieve covalent interaction, are described. The discussion is focused on the consequences of the adsorption process on the structure and properties of both proteins and CNTs. On this base, recent developments in CNTs-proteins based biosensors (electrochemical and optical) and drug delivery systems are reviewed.
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Takeuchi T, Bagnacani V, Sansone F, Matile S. Amphiphilic Counterion Activators for DNA: Stimuli-Responsive Cation Transporters and Biosensors in Bulk and Lipid Bilayer Membranes. Chembiochem 2009; 10:2793-9. [DOI: 10.1002/cbic.200900512] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Immobilization of l-lysine α-oxidase on gold-mercaptopropionic acid self-assembled monolayer: Preparation and electrochemical characterization. Bioelectrochemistry 2009; 75:124-9. [DOI: 10.1016/j.bioelechem.2009.02.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Revised: 02/24/2009] [Accepted: 02/26/2009] [Indexed: 11/21/2022]
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Puleo DA, Bizios R. Investigating Protein Adsorption via Spectroscopic Ellipsometry. BIOLOGICAL INTERACTIONS ON MATERIALS SURFACES 2009. [PMCID: PMC7121108 DOI: 10.1007/978-0-387-98161-1_2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this chapter, the basic concepts behind ellipsometry and spectroscopic ellipsometry are discussed along with some instrument details. Ellipsometry is an optical technique that measures changes in the reflectance and phase difference between the parallel (RP) and perpendicular (RS) components of a polarized light beam upon reflection from a surface. Aside from providing a simple, sensitive, and nondestructive way to analyze thin films, ellipsometry allows dynamic studies of film growth (thickness and optical constants) with a time resolution that is relevant to biomedical research. The present chapter intends to introduce ellipsometry as an emerging but highly promising technique, that is useful to elucidate the interactions of proteins with solid surfaces. In this regard, particular emphasis is placed on experimental details related to the development of biomedically relevant conjugated surfaces. Results from our group related to adsorption of proteins to nanostructured materials, as well as results published by other research groups, are discussed to illustrate the advantages and limitations of the technique.
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Arya SK, Solanki PR, Datta M, Malhotra BD. Recent advances in self-assembled monolayers based biomolecular electronic devices. Biosens Bioelectron 2009; 24:2810-7. [DOI: 10.1016/j.bios.2009.02.008] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 02/06/2009] [Accepted: 02/10/2009] [Indexed: 11/25/2022]
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34
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Mora MF, Giacomelli CE, Garcia CD. Interaction of D-amino acid oxidase with carbon nanotubes: implications in the design of biosensors. Anal Chem 2009; 81:1016-22. [PMID: 19132842 PMCID: PMC2646172 DOI: 10.1021/ac802068n] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have investigated the interaction of d-amino acid oxidase (DAAO) with single-walled carbon nanotubes (CNT) by spectroscopic ellipsometry. Dynamic adsorption experiments were performed at different experimental conditions. In addition, the activity of the enzyme adsorbed at different conditions was studied. Our results indicate that DAAO can be adsorbed to CNT at different pH values and concentrations by a combination of hydrophobic and electrostatic interactions. Considering that the highest enzymatic activity was obtained by adsorbing the protein at pH 5.7 and 0.1 mg x mL(-1), our results indicate that DAAO can adopt multiple orientations on the surface, which are ultimately responsible for significant differences in catalytic activity.
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Affiliation(s)
- Maria F. Mora
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | | | - Carlos D. Garcia
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA
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35
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Hennig A, Gabriel GJ, Tew GN, Matile S. Stimuli-responsive polyguanidino-oxanorbornene membrane transporters as multicomponent sensors in complex matrices. J Am Chem Soc 2008; 130:10338-44. [PMID: 18624407 PMCID: PMC2646665 DOI: 10.1021/ja802587j] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Indexed: 11/29/2022]
Abstract
We introduce guanidinium-containing synthetic polymers based on polyguanidino-oxanorbornenes (PGONs) as anion transporters in lipid bilayers that can be activated and inactivated by chemical stimulation. According to fluorogenic anion export experiments with vesicles, PGON transporters are most active in neutral bilayers near their phase transition, with EC50's in the nanomolar range. Six times higher effective transporter concentrations were measured with aminonaphthalene-1,3,6-trisulfonate than with 5(6)-carboxyfluorescein, demonstrating the importance of anion binding for transport and excluding nonspecific efflux. Negative surface potentials efficiently annihilate transport activity, while inside-negative membrane potentials slightly increase it. These trends demonstrate the functional importance of counterions to hinder the binding of hydrophilic counterions and to minimize the global positive charge of the transporter-counterion complexes. Strong, nonlinear increases in activity with polymer length reveal a significant polymer effect. Overall, the characteristics of PGONs do not match those of similar systems (for example, polyarginine) and hint toward an interesting mode of action, clearly different from nonspecific leakage caused by detergents. The activity of PGONs increases in the presence of amphiphilic anions such as pyrenebutyrate (EC50 = 70 microM), while several other amphiphilic anions tested were inactive. PGONs are efficiently inactivated by numerous hydrophilic anions including ATP (IC 50 = 150 microM), ADP (IC50 = 460 microM), heparin (IC50 = 1.0 microM), phytate (IC50 = 0.4 microM), and CB hydrazide (IC50 = 26 microM). The compatibility of this broad responsiveness with multicomponent sensing in complex matrices is discussed and illustrated with lactate sensing in sour milk. The PGON lactate sensor operates together with lactate oxidase as a specific signal generator and CB hydrazide as an amplifier for covalent capture of the pyruvate product as CB hydrazone (IC50 = 1.5 microM).
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Affiliation(s)
- Andreas Hennig
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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37
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Development of a d-amino acids electrochemical sensor based on immobilization of thermostable d-Proline dehydrogenase within agar gel membrane. Anal Chim Acta 2008; 619:215-20. [DOI: 10.1016/j.aca.2008.04.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Revised: 04/26/2008] [Accepted: 04/29/2008] [Indexed: 11/19/2022]
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38
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Hagihara S, Gremaud L, Bollot G, Mareda J, Matile S. Screening of π-Basic Naphthalene and Anthracene Amplifiers for π-Acidic Synthetic Pore Sensors. J Am Chem Soc 2008; 130:4347-51. [DOI: 10.1021/ja078256t] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shinya Hagihara
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Ludovic Gremaud
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Guillaume Bollot
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Jiri Mareda
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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39
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Ma S, Lu W, Mu J, Li J, Jiang L. Effect of Immobilization Supports on the Amperometric Response of Silver Nanoparticles Enhanced Glucose Oxidase Electrodes. J DISPER SCI TECHNOL 2008. [DOI: 10.1080/01932690701688888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Litvinchuk S, Tanaka H, Miyatake T, Pasini D, Tanaka T, Bollot G, Mareda J, Matile S. Synthetic pores with reactive signal amplifiers as artificial tongues. NATURE MATERIALS 2007; 6:576-80. [PMID: 17558430 DOI: 10.1038/nmat1933] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Accepted: 05/10/2007] [Indexed: 05/15/2023]
Abstract
The sensation of taste is mediated by activation or deactivation of transmembrane pores. Artificial stimulus-responsive pores are enormously appealing as sensor components because changes in their activity are readily detectable in many different ways. However, the detection of multiple components in complex matrices (such as foods) with one pore sensor has so far remained elusive because the specificity necessary for sensing a target compound in complex mixtures is incompatible with the broad applicability needed for the detection of multiple components. Here, we present synthetic pores that, like our tongues, can sense flavours in food and in addition make them visibly detectable. Differential sensing and pattern recognition are solutions based on empirical and biomimetic approaches. They have been explored with synthetic receptor arrays and electronic tongues. In contrast, our approach is non-empirical as it exploits reactive amplifiers that covalently capture elusive analytes after enzymatic signal generation and drag them into synthetic pores for blockage. Reactive amplification proved to be highly sensitive and adaptable to various analytes and pores. Moreover, it can be combined with reactive filtration for minimizing interference. The system was tested on real food samples for detection of sucrose, lactose, lactate, acetate, citrate and glutamate to demonstrate the feasibility of these synthetic pores as universal sensors.
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Affiliation(s)
- Svetlana Litvinchuk
- Department of Organic Chemistry, University of Geneva, 1211 Geneva, Switzerland
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41
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Jao HJ, Tsai PY, Wang CM. Unexplored interactions between pyrroloquinoline quinone and β-nicotinamide adenine dinucleotide. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Prosperi D, Morasso C, Tortora P, Monti D, Bellini T. Avidin Decorated Core–Shell Nanoparticles for Biorecognition Studies by Elastic Light Scattering. Chembiochem 2007; 8:1021-8. [PMID: 17503421 DOI: 10.1002/cbic.200600542] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this paper, a straightforward method based on elastic light scattering is shown to provide a sensitive and reliable tool for the quantitative determination of protein-ligand interactions that occur at the surface of suitably designed core-shell nanoparticles. The assay makes use of monodisperse nanocolloids that have minimal optical contrast with the aqueous environment. By properly coating the particles with avidin and oligo(ethylene glycol)-based amphiphiles, we developed a hybrid system that combines the availability of standard ligands with the necessary bioinvisibility towards the accidental adsorption of nonspecific macromolecules. This probe was employed to detect interactions between different kinds of biotinylated proteins, and it revealed high specificity and affinities in the low nanomolar range. In particular, we obtained an efficient avidin anchorage of biotinylated protein A on the surface of the nanoparticles, which we exploited as a functional probe for the rapid, quantitative, picomolar detection of human IgG antibodies. Overall, these light-scattering-based nanosensors appear as a simple and highly informative tool for proteomics studies.
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Affiliation(s)
- Davide Prosperi
- Istituto di Scienze e Tecnologie Molecolari, National Research Council (CNR), Via Golgi 19, 20133 Milano, Italy.
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43
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Ijeri V, Vocanson F, Martelet C, Jaffrezic-Renault N. Capacitive Sensing of Amino Acids Using Caliraxene-Coated Silicon Transducers. ELECTROANAL 2007. [DOI: 10.1002/elan.200603729] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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44
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Herzog G, Arrigan DWM. Electrochemical strategies for the label-free detection of amino acids, peptides and proteins. Analyst 2007; 132:615-32. [PMID: 17592579 DOI: 10.1039/b701472d] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical methods for the detection of amino acids, peptides, and proteins in a variety of media are reviewed. Label-free strategies in which the detection is based on the inherent electrochemical properties of the analyte are discussed. Various processes such as direct or mediated (in solution or immobilised) redox processes and interfacial ion transfers have been employed for the electrochemical detection and determination of the target analytes. The various methods covered encompass voltammetry at uncoated and modified electrodes and at immiscible liquid-liquid interfaces, potentiometry at polymer membrane electrodes and electrochemical impedance spectroscopy. The determination of the target analytes in complex biological matrices is discussed. The various approaches highlighted here illustrate the rich capabilities of electrochemical methods as simple, low-cost, sensitive tools for the determination of these important biological analytes at trace and ultra-trace levels.
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Affiliation(s)
- Grégoire Herzog
- Tyndall National Institute, Lee Maltings, University College, Cork, Ireland
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45
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Lvova L, Martinelli E, Mazzone E, Pede A, Paolesse R, Di Natale C, D’Amico A. Electronic tongue based on an array of metallic potentiometric sensors. Talanta 2006; 70:833-9. [DOI: 10.1016/j.talanta.2006.02.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2005] [Revised: 12/23/2005] [Accepted: 02/07/2006] [Indexed: 11/28/2022]
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46
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Shervedani RK, Mehrjardi AH, Zamiri N. A novel method for glucose determination based on electrochemical impedance spectroscopy using glucose oxidase self-assembled biosensor. Bioelectrochemistry 2006; 69:201-8. [PMID: 16580891 DOI: 10.1016/j.bioelechem.2006.01.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2005] [Revised: 01/04/2006] [Accepted: 01/06/2006] [Indexed: 10/25/2022]
Abstract
A method is developed for quantitative determination of glucose using electrochemical impedance spectroscopy (EIS). The method is based on immobilized glucose oxidase (GOx) on the topside of gold mercaptopropionic acid self-assembled monolayers (Au-MPA-GOx SAMs) electrode and mediation of electron transfer by parabenzoquinone (PBQ). The PBQ is reduced to hydroquinone (H(2)Q), which in turn is oxidized at Au electrode in diffusion layer. An increase in the glucose concentration results in an increase in the diffusion current density of the H(2)Q oxidation, which corresponds to a decrease in the faradaic charge transfer resistance (R(ct)) obtained from the EIS measurements. Glucose is quantified from linear variation of the sensor response (1/R(ct)) as a function of glucose concentration in solution. The method is straightforward and nondestructive. The dynamic range for determination of glucose is extended to more than two orders of magnitude. A detection limit of 15.6 microM with a sensitivity of 9.66 x 10(-7) Omega(-1)mM(-1) is obtained.
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47
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Affiliation(s)
- Eric Bakker
- Department of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, Indiana 47907, USA
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48
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Das G, Matile S. Substrate-Independent Transduction of Chromophore-Free Organic and Biomolecular Transformations into Color. Chemistry 2006; 12:2936-44. [PMID: 16402398 DOI: 10.1002/chem.200500977] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The concept of synthetic multifunctional pores as substrate-independent optical signal transducers of chemical reactions is introduced with emphasis on the combination with substrate-specific signal generation in biomolecular transformations. Comparison with the general electrochemical transduction, known from conventional biosensors, and the general optical transduction of analyte-specific biomolecular recognition (rather than transformation), known from immunosensing, reveals the fundamental nature of the concept as well as an attractive complementarity to existing methods. Examples with transferases, hydrolases, lyases, and even an isomerase demonstrate that optical transduction with synthetic multifunctional pores is general far beyond the substrate-specific signal generators of electrochemical transduction, that is, the oxidoreductases, and absolutely unproblematic. In part very recent breakthroughs are used to highlight the remarkable promise of synthetic multifunctional pores as optical transducers of biomolecular transformation with regard to practical sensing and screening applications.
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Affiliation(s)
- Gopal Das
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, India
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49
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Santiago MB, Vélez MM, Borrero S, Díaz A, Casillas CA, Hofmann C, Guadalupe AR, Colón JL. NADH Electrooxidation Using Bis(1,10-phenanthroline-5,6-dione) (2,2'-bipyridine)ruthenium(II)-Exchanged Zirconium Phosphate Modified Carbon Paste Electrodes. ELECTROANAL 2006; 18:559-572. [PMID: 18516242 PMCID: PMC2398768 DOI: 10.1002/elan.200503432] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We present a carbon paste electrode (CPE) modified using the electron mediator bis(1,10-phenanthroline-5,6-dione) (2,2'-bipyridine)ruthenium(II) ([Ru(phend)(2)bpy](2+)) exchanged into the inorganic layered material zirconium phosphate (ZrP). X-Ray powder diffraction showed that the interlayer distance of ZrP increases upon [Ru(phend)(2)bpy](2+) intercalation from 10.3 Å to 14.2 Å. The UV-vis and IR spectroscopies results showed the characteristic peaks expected for [Ru(phend)(2)bpy](2+). The UV-vis spectrophotometric results indicate that the [Ru(phend)(2)bpy](2+) concentration inside the ZrP layers increased as a function of the loading level. The exchanged [Ru(phend)(2)bpy](2+) exhibited luminescence even at low concentration. Modified CPEs were constructed and analyzed using cyclic voltammetry. The intercalated mediator remained electroactive within the layers (E°' = -38.5 mV vs. Ag/AgCl, 3.5 M NaCl) and electrocatalysis of NADH oxidation was observed. The kinetics of the modified CPE shows a Michaelis -Menten behavior. This CPE was used for the oxidation of NADH in the presence of Bakers' yeast alcohol dehydrogenase. A calibration plot for ethanol is presented.
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Affiliation(s)
- Mitk’El B. Santiago
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Meredith M. Vélez
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Solmarie Borrero
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Agustín Díaz
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Craig A. Casillas
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Cristina Hofmann
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Ana R. Guadalupe
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
| | - Jorge L. Colón
- Department of Chemistry, P. O. Box 23346, University of Puerto Rico, Río Piedras, P. R. 00931-3346, USA
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50
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Slavica A, Dib I, Nidetzky B. Single-site oxidation, cysteine 108 to cysteine sulfinic acid, in D-amino acid oxidase from Trigonopsis variabilis and its structural and functional consequences. Appl Environ Microbiol 2006; 71:8061-8. [PMID: 16332786 PMCID: PMC1317377 DOI: 10.1128/aem.71.12.8061-8068.2005] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
One of the primary sources of enzyme instability is protein oxidative modification triggering activity loss or denaturation. We show here that the side chain of Cys108 is the main site undergoing stress-induced oxidation in Trigonopsis variabilis d-amino acid oxidase, a flavoenzyme employed industrially for the conversion of cephalosporin C. High-resolution anion-exchange chromatography was used to separate the reduced and oxidized protein forms, which constitute, in a molar ratio of about 3:1, the active biocatalyst isolated from the yeast. Comparative analysis of their tryptic peptides by electrospray tandem mass spectrometry allowed unequivocal assignment of the modification as the oxidation of Cys108 into cysteine sulfinic acid. Cys108 is likely located on a surface-exposed protein region within the flavin adenine dinucleotide (FAD) binding domain, but remote from the active center. Its oxidized side chain was remarkably stable in solution, thus enabling the relative biochemical characterization of native and modified enzyme forms. The oxidation of Cys108 causes a global conformational response that affects the protein environment of the FAD cofactor. In comparison with the native enzyme, it results in a fourfold-decreased specific activity, reflecting a catalytic efficiency for reduction of dioxygen lowered by about the same factor, and a markedly decreased propensity to aggregate under conditions of thermal denaturation. These results open up unprecedented routes for stabilization of the oxidase and underscore the possible significance of protein chemical heterogeneity for biocatalyst function and stability.
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Affiliation(s)
- Anita Slavica
- Research Centre Applied Biocatalysis and Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12/I, A-8010 Graz, Austria
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