101
|
Nanoparticles based DNA conjugates for detection of pathogenic microorganisms. INTERNATIONAL NANO LETTERS 2016. [DOI: 10.1007/s40089-015-0177-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
102
|
Asadian E, Shahrokhian S, Zad AI. Hierarchical core–shell structure of ZnO nanotube/MnO2 nanosheet arrays on a 3D graphene network as a high performance biosensing platform. RSC Adv 2016. [DOI: 10.1039/c6ra07197j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A hierarchical core–shell structure composed of ZnO nanotubes/MnO2 nanosheets was fabricated via a two-step electrochemical deposition procedure on the surface of a 3D graphene network (3DGN) as a free-standing monolithic electrode.
Collapse
Affiliation(s)
- Elham Asadian
- Institute for Nanoscience and Nanotechnology (INST)
- Sharif University of Technology
- Tehran
- Iran
| | - Saeed Shahrokhian
- Institute for Nanoscience and Nanotechnology (INST)
- Sharif University of Technology
- Tehran
- Iran
- Department of Chemistry
| | - Azam Iraji Zad
- Institute for Nanoscience and Nanotechnology (INST)
- Sharif University of Technology
- Tehran
- Iran
- Department of Physics
| |
Collapse
|
103
|
Wan Q, Liu M, Xu D, Huang H, Mao L, Zeng G, Deng F, Zhang X, Wei Y. Facile fabrication of amphiphilic AIE active glucan via formation of dynamic bonds: self assembly, stimuli responsiveness and biological imaging. J Mater Chem B 2016; 4:4033-4039. [DOI: 10.1039/c6tb00776g] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A one-pot strategy has been developed for the preparation of stimuli responsive AIE active glucan through formation of a dynamic Schiff base and a phenyl borate.
Collapse
Affiliation(s)
- Qing Wan
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Meiying Liu
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Dazhuang Xu
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Hongye Huang
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Liucheng Mao
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Guangjian Zeng
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Fengjie Deng
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Xiaoyong Zhang
- Department of Chemistry and Jiangxi Provincial Key Laboratory of New Energy Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Yen Wei
- Department of Chemistry and the Tsinghua Center for Frontier Polymer Research
- Tsinghua University
- Beijing
- P. R. China
| |
Collapse
|
104
|
Yoosefian M, Etminan N. The role of solvent polarity in the electronic properties, stability and reactivity trend of a tryptophane/Pd doped SWCNT novel nanobiosensor from polar protic to non-polar solvents. RSC Adv 2016. [DOI: 10.1039/c6ra14006h] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carbon nanotubes and amino acids have a high potential to offer specific advantages as the transducer and the recognition elements of biosensors.
Collapse
Affiliation(s)
- Mehdi Yoosefian
- Department of Chemistry
- Graduate University of Advanced Technology
- Kerman
- Iran
| | | |
Collapse
|
105
|
Silva TR, Vieira IC. A biosensor based on gold nanoparticles stabilized in poly(allylamine hydrochloride) and decorated with laccase for determination of dopamine. Analyst 2016; 141:216-24. [DOI: 10.1039/c5an01784j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A new biosensor for dopamine determination based on laccase immobilized in gold nanoparticles is reported.
Collapse
Affiliation(s)
- Tânia Regina Silva
- Department of Chemistry
- Federal University of Santa Catarina
- Florianópolis
- Brazil
| | - Iolanda Cruz Vieira
- Department of Chemistry
- Federal University of Santa Catarina
- Florianópolis
- Brazil
| |
Collapse
|
106
|
Recent Advances in Electrochemical Biosensors Based on Fullerene-C60 Nano-Structured Platforms. BIOSENSORS-BASEL 2015; 5:712-35. [PMID: 26610583 PMCID: PMC4697141 DOI: 10.3390/bios5040712] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/01/2015] [Accepted: 10/14/2015] [Indexed: 12/29/2022]
Abstract
Nanotechnology is becoming increasingly important in the field of (bio)sensors. The performance and sensitivity of biosensors is greatly improved with the integration of nanomaterials into their construction. Since its first discovery, fullerene-C60 has been the object of extensive research. Its unique and favorable characteristics of easy chemical modification, conductivity, and electrochemical properties has led to its tremendous use in (bio)sensor applications. This paper provides a concise review of advances in fullerene-C60 research and its use as a nanomaterial for the development of biosensors. We examine the research work reported in the literature on the synthesis, functionalization, approaches to nanostructuring electrodes with fullerene, and outline some of the exciting applications in the field of (bio)sensing.
Collapse
|
107
|
Castro L, Blázquez ML, González F, Muñoz JÁ, Ballester A. Biosynthesis of silver and platinum nanoparticles using orange peel extract: characterisation and applications. IET Nanobiotechnol 2015; 9:252-8. [DOI: 10.1049/iet-nbt.2014.0063] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Laura Castro
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - María Luisa Blázquez
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Felisa González
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Jesús Ángel Muñoz
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Antonio Ballester
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| |
Collapse
|
108
|
Bragazzi NL, Amicizia D, Panatto D, Tramalloni D, Valle I, Gasparini R. Quartz-Crystal Microbalance (QCM) for Public Health: An Overview of Its Applications. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 101:149-211. [PMID: 26572979 DOI: 10.1016/bs.apcsb.2015.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanobiotechnologies, from the convergence of nanotechnology and molecular biology and postgenomics medicine, play a major role in the field of public health. This overview summarizes the potentiality of piezoelectric sensors, and in particular, of quartz-crystal microbalance (QCM), a physical nanogram-sensitive device. QCM enables the rapid, real time, on-site detection of pathogens with an enormous burden in public health, such as influenza and other respiratory viruses, hepatitis B virus (HBV), and drug-resistant bacteria, among others. Further, it allows to detect food allergens, food-borne pathogens, such as Escherichia coli and Salmonella typhimurium, and food chemical contaminants, as well as water-borne microorganisms and environmental contaminants. Moreover, QCM holds promises in early cancer detection and screening of new antiblastic drugs. Applications for monitoring biohazards, for assuring homeland security, and preventing bioterrorism are also discussed.
Collapse
Affiliation(s)
- Nicola Luigi Bragazzi
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Amicizia
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Donatella Panatto
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Daniela Tramalloni
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy
| | - Ivana Valle
- SSD "Popolazione a rischio," Health Prevention Department, Local Health Unit ASL3 Genovese, Genoa, Italy
| | - Roberto Gasparini
- Department of Health Sciences (DISSAL), Via Antonio Pastore 1, University of Genoa, Genoa, Italy.
| |
Collapse
|
109
|
Titanium Dioxide Nanoparticles (TiO₂) Quenching Based Aptasensing Platform: Application to Ochratoxin A Detection. Toxins (Basel) 2015; 7:3771-84. [PMID: 26402704 PMCID: PMC4591649 DOI: 10.3390/toxins7093771] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 09/15/2015] [Accepted: 09/16/2015] [Indexed: 12/17/2022] Open
Abstract
We demonstrate for the first time, the development of titanium dioxide nanoparticles (TiO2) quenching based aptasensing platform for detection of target molecules. TiO2 quench the fluorescence of FAM-labeled aptamer (fluorescein labeled aptamer) upon the non-covalent adsorption of fluorescent labeled aptamer on TiO2 surface. When OTA interacts with the aptamer, it induced aptamer G-quadruplex complex formation, weakens the interaction between FAM-labeled aptamer and TiO2, resulting in fluorescence recovery. As a proof of concept, an assay was employed for detection of Ochratoxin A (OTA). At optimized experimental condition, the obtained limit of detection (LOD) was 1.5 nM with a good linearity in the range 1.5 nM to 1.0 µM for OTA. The obtained results showed the high selectivity of assay towards OTA without interference to structurally similar analogue Ochratoxin B (OTB). The developed aptamer assay was evaluated for detection of OTA in beer sample and recoveries were recorded in the range from 94.30%–99.20%. Analytical figures of the merits of the developed aptasensing platform confirmed its applicability to real samples analysis. However, this is a generic aptasensing platform and can be extended for detection of other toxins or target analyte.
Collapse
|
110
|
Apak R, Çapanoğlu E, Arda AÜ. Nanotechnological Methods of Antioxidant Characterization. ACTA ACUST UNITED AC 2015. [DOI: 10.1021/bk-2015-1191.ch016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Affiliation(s)
- Reşat Apak
- Department of Chemistry, Faculty of Engineering, Istanbul University, Avcilar 34320, Istanbul-Turkey
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak 34469, Istanbul-Turkey
| | - Esra Çapanoğlu
- Department of Chemistry, Faculty of Engineering, Istanbul University, Avcilar 34320, Istanbul-Turkey
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak 34469, Istanbul-Turkey
| | - Ayşem Üzer Arda
- Department of Chemistry, Faculty of Engineering, Istanbul University, Avcilar 34320, Istanbul-Turkey
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak 34469, Istanbul-Turkey
| |
Collapse
|
111
|
Silva TR, Brondani D, Zapp E, Cruz Vieira I. Electrochemical Sensor Based on Gold Nanoparticles Stabilized in Poly(Allylamine hydrochloride) for Determination of Vanillin. ELECTROANAL 2015. [DOI: 10.1002/elan.201400517] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tânia Regina Silva
- Department of Chemistry, Federal University of Santa Catarina, 88040‐900, Florianópolis, SC, Brazil, Phone: +55 48 3721 6844; Fax: +55 48 3721 6850
| | - Daniela Brondani
- Federal University of Santa Catarina, 89065‐300, Blumenau, SC, Brazil
| | - Eduardo Zapp
- Department of Chemistry, Federal University of Santa Catarina, 88040‐900, Florianópolis, SC, Brazil, Phone: +55 48 3721 6844; Fax: +55 48 3721 6850
| | - Iolanda Cruz Vieira
- Department of Chemistry, Federal University of Santa Catarina, 88040‐900, Florianópolis, SC, Brazil, Phone: +55 48 3721 6844; Fax: +55 48 3721 6850
| |
Collapse
|
112
|
Dielacher B, Tiefenauer RF, Junesch J, Vörös J. Iodide sensing via electrochemical etching of ultrathin gold films. NANOTECHNOLOGY 2015; 26:025202. [PMID: 25513753 DOI: 10.1088/0957-4484/26/2/025202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Iodide is an essential element for humans and animals and insufficient intake is still a major problem. Affordable and accurate methods are required to quantify iodide concentrations in biological and environmental fluids. A simple and low cost sensing device is presented which is based on iodide induced electrochemical etching of ultrathin gold films. The sensitivity of resistance measurements to film thickness changes is increased by using films with a thickness smaller than the electron mean free path. The underlying mechanism is demonstrated by simultaneous cyclic voltammetry experiments and resistance change measurements in a buffer solution. Iodide sensing is conducted in buffer solutions as well as in lake water with limits of detection in the range of 1 μM (127 μg L(-1)) and 2 μM (254 μg L(-1)), respectively. In addition, nanoholes embedded in the thin films are tested for suitability of optical iodide sensing based on localized surface plasmon resonance.
Collapse
Affiliation(s)
- Bernd Dielacher
- Laboratory of Biosensors & Bioelectronics, ETH Zurich, Gloriastrasse 35, 8092 Zurich Switzerland
| | | | | | | |
Collapse
|
113
|
Dehnad A, Hamedi J, Derakhshan-Khadivi F, Abusov R. Green Synthesis of Gold Nanoparticles by a Metal Resistant Arthrobacter nitroguajacolicus Isolated From Gold Mine. IEEE Trans Nanobioscience 2015; 14:393-396. [PMID: 25594974 DOI: 10.1109/tnb.2014.2377232] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Biosynthesis of gold nanoparticles would benefit from the development of clean, nontoxic and environmentally acceptable procedures concerning microorganisms from bacteria to fungi and even algae. Actinobacteria are soil bacteria which have the enormous ability as biotechnological tools. In this paper, we reported the biosynthesis of gold nanoparticles by a member of Arthrobacter genus isolated from Andaliyan gold mine in north-west of Iran. This metal resistance strain obtained from an acidophilic region ( ~ pH 5.6). The UV-vis and XRD spectra of the aqueous medium containing the strain and 1 mM HAuCl 4 for 24 h, demonstrated the formation of gold nanoparticles. TEM micrographs showed intra-extracellular production of gold nanoparticles with spherical shape and average size of 40 nm. The result of morphological and molecular tests revealed that the isolate was belonged to Atrhrobacter and has 100% similarity in 16SrRNA gene sequences to Arthrobacter nitroguajacolicus.
Collapse
|
114
|
Salahinejad M. Application of classification models to identify solvents for single-walled carbon nanotubes dispersion. RSC Adv 2015. [DOI: 10.1039/c5ra01261a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a list of classification models was developed to categorise organic solvents with respect to their dispersibility of single-walled carbon nanotubes (SWNTs).
Collapse
|
115
|
Abstract
Glycans are chains of carbohydrates attached to proteins (glycoproteins and proteoglycans) or lipids (glycolipids). Glycosylation is a posttranslational modification and glycans have a wide range of functions in a human body including involvement in oncological diseases. Change in a glycan structure cannot only indicate presence of a pathological process, but more importantly in some cases also its stage. Thus, a glycan analysis has a potential to be an effective and reliable tool in cancer diagnostics. Lectins are proteins responsible for natural biorecognition of glycans, even carbohydrate moieties still attached to proteins or whole cells can be recognized by lectins, what makes them an ideal candidate for designing label-free biosensors for glycan analysis. In this review we would like to summarize evidence that glycoprofiling of biomarkers by lectin-based biosensors can be really helpful in detecting prostate cancer.
Collapse
Affiliation(s)
- Štefan Belický
- Department of Glycobiotechnology, Center for Glycomics, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, SK - 845 38, Slovakia
| | - Jan Tkac
- Department of Glycobiotechnology, Center for Glycomics, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, SK - 845 38, Slovakia
| |
Collapse
|
116
|
Kehr NS, Atay S, Ergün B. Self-assembled Monolayers and Nanocomposite Hydrogels of Functional Nanomaterials for Tissue Engineering Applications. Macromol Biosci 2014; 15:445-63. [DOI: 10.1002/mabi.201400363] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nermin Seda Kehr
- Physikalisches Institut and Center for Nanotechnology; Westfälische Wilhelms-Universität Münster; Heisenbergstrasse 11 D-48149 Münster Germany
| | - Seda Atay
- Department of Nanotechnology and Nanomedicine; Hacettepe University; 06800 Ankara Turkey
| | - Bahar Ergün
- Department of Chemistry; Biochemistry Division; Hacettepe University; 06800 Ankara Turkey
| |
Collapse
|
117
|
Marine viruses: the beneficial side of a threat. Appl Biochem Biotechnol 2014; 174:2368-79. [PMID: 25245677 DOI: 10.1007/s12010-014-1194-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 08/21/2014] [Indexed: 10/24/2022]
Abstract
Marine viruses are ubiquitous, extremely diverse, and outnumber any form of life in the sea. Despite their ecological importance, viruses in marine environments have been largely ignored by the academic community, and only those that have caused substantial economic losses have received more attention. Fortunately, our current understanding on marine viruses has advanced considerably during the last decades. These advances have opened new and exciting research opportunities as several unique structural and genetic characteristics of marine viruses have shown to possess an immense potential for various biotechnological applications. Here, a condensed overview of the possibilities of using the enormous potential offered by marine viruses to develop innovative products in industries as pharmaceuticals, environmental remediation, cosmetics, material sciences, and several others, is presented. The importance of marine viruses to biotechnology should not be underestimated.
Collapse
|
118
|
Zhao W, Wang K, Wei Y, Ma Y, Liu L, Huang X. Laccase biosensor based on phytic acid modification of nanostructured SiO₂ surface for sensitive detection of dopamine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11131-11137. [PMID: 25110941 DOI: 10.1021/la503104x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, three kinds of nanostructured silica-phytic acid (SiO2-PA) materials with diverse morphologies including spherical SiO2-PA (s-SiO2-PA), rod-like (r-SiO2-PA), and helical SiO2-PA (h-SiO2-PA) were prepared with the help of electrostatic interaction. The SiO2-PA nanomaterials with different morphologies were characterized by using transmission electron microscopy (TEM), Fourier transform infrared (FTIR), electrochemical impedance spectroscopy (EIS), and circular dichroism spectrum (CD). Diverse morphologies of SiO2-PA were used as electrode decorated materials to achieve a high efficiency for electrochemical dopamine (DA) detection. The laccase biosensors were fabricated by immobilizing different morphologies of SiO2-PA nanomaterials and laccase onto the glassy carbon electrode (GCE) surface, successively. Then the electrochemical responses of the different morphologies of nanostructured SiO2-PA nanomaterials to laccase were discussed. Results indicated that compared to laccase/s-SiO2-PA and laccase/r-SiO2-PA, the laccase/h-SiO2-PA-modified electrode showed the best electrochemical performances.
Collapse
Affiliation(s)
- Wenbo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, People's Republic of China
| | | | | | | | | | | |
Collapse
|
119
|
Huang YH, Chang JS, Chao SD, Wu KC, Huang LS. Improving the binding efficiency of quartz crystal microbalance biosensors by applying the electrothermal effect. BIOMICROFLUIDICS 2014; 8:054116. [PMID: 25538808 PMCID: PMC4241767 DOI: 10.1063/1.4898633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 10/06/2014] [Indexed: 05/06/2023]
Abstract
A quartz crystal microbalance (QCM) serving as a biosensor to detect the target biomolecules (analytes) often suffers from the time consuming process, especially in the case of diffusion-limited reaction. In this experimental work, we modify the reaction chamber of a conventional QCM by integrating into the multi-microelectrodes to produce electrothermal vortex flow which can efficiently drive the analytes moving toward the sensor surface, where the analytes were captured by the immobilized ligands. The microelectrodes are placed on the top surface of the chamber opposite to the sensor, which is located on the bottom of the chamber. Besides, the height of reaction chamber is reduced to assure that the suspended analytes in the fluid can be effectively drived to the sensor surface by induced electrothermal vortex flow, and also the sample costs are saved. A series of frequency shift measurements associated with the adding mass due to the specific binding of the analytes in the fluid flow and the immobilized ligands on the QCM sensor surface are performed with or without applying electrothermal effect (ETE). The experimental results show that electrothermal vortex flow does effectively accelerate the specific binding and make the frequency shift measurement more sensible. In addition, the images of the binding surfaces of the sensors with or without applying electrothermal effect are taken through the scanning electron microscopy. By comparing the images, it also clearly indicates that ETE does raise the specific binding of the analytes and ligands and efficiently improves the performance of the QCM sensor.
Collapse
Affiliation(s)
- Yao-Hung Huang
- Institute of Applied Mechanics, National Taiwan University , Taipei, Taiwan
| | - Jeng-Shian Chang
- Institute of Applied Mechanics, National Taiwan University , Taipei, Taiwan
| | - Sheng D Chao
- Institute of Applied Mechanics, National Taiwan University , Taipei, Taiwan
| | - Kuang-Chong Wu
- Institute of Applied Mechanics, National Taiwan University , Taipei, Taiwan
| | - Long-Sun Huang
- Institute of Applied Mechanics, National Taiwan University , Taipei, Taiwan
| |
Collapse
|
120
|
Silva RR, Avelino KYPS, Ribeiro KL, Franco OL, Oliveira MDL, Andrade CAS. Optical and dielectric sensors based on antimicrobial peptides for microorganism diagnosis. Front Microbiol 2014; 5:443. [PMID: 25191319 PMCID: PMC4138613 DOI: 10.3389/fmicb.2014.00443] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 08/04/2014] [Indexed: 12/24/2022] Open
Abstract
Antimicrobial peptides (AMPs) are natural compounds isolated from a wide variety of organisms that include microorganisms, insects, amphibians, plants, and humans. These biomolecules are considered as part of the innate immune system and are known as natural antibiotics, presenting a broad spectrum of activities against bacteria, fungi, and/or viruses. Technological innovations have enabled AMPs to be utilized for the development of novel biodetection devices. Advances in nanotechnology, such as the synthesis of nanocomposites, nanoparticles, and nanotubes have permitted the development of nanostructured platforms with biocompatibility and greater surface areas for the immobilization of biocomponents, arising as additional tools for obtaining more efficient biosensors. Diverse AMPs have been used as biological recognition elements for obtaining biosensors with more specificity and lower detection limits, whose analytical response can be evaluated through electrochemical impedance and fluorescence spectroscopies. AMP-based biosensors have shown potential for applications such as supplementary tools for conventional diagnosis methods of microorganisms. In this review, conventional methods for microorganism diagnosis as well new strategies using AMPs for the development of impedimetric and fluorescent biosensors are highlighted. AMP-based biosensors show promise as methods for diagnosing infections and bacterial contaminations as well as applications in quality control for clinical analyses and microbiological laboratories.
Collapse
Affiliation(s)
- Rafael R Silva
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil
| | - Karen Y P S Avelino
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
| | - Kalline L Ribeiro
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil
| | - Octavio L Franco
- Centro de Análises Proteômicas e Bioquímicas, Universidade Católica de Brasília Brasília-DF, Brasil
| | - Maria D L Oliveira
- Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
| | - Cesar A S Andrade
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco Recife, Brasil ; Departamento de Bioquímica, Universidade Federal de Pernambuco Recife, Brasil
| |
Collapse
|
121
|
Wang D, Lin Z, Yao Z, Yu H. Surfactants present complex joint effects on the toxicities of metal oxide nanoparticles. CHEMOSPHERE 2014; 108:70-75. [PMID: 24875914 DOI: 10.1016/j.chemosphere.2014.03.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/28/2014] [Accepted: 03/02/2014] [Indexed: 06/03/2023]
Abstract
The potential toxicities of nanoparticles (NPs) have been intensively discussed over the past decade. In addition to their single toxicities, NPs can interact with other environmental chemicals and thereby exert joint effects on biological systems and the environment. The present study investigated the combined toxicities of NPs and surfactants, which are among the chemicals that most likely coexist with NPs. Photobacterium phosphoreum was employed as the model organism. The results indicate that surfactants with different ion types can alter the properties of NPs (i.e., particle size and surface charge) in different ways and present complex joint effects on NP toxicities. Mixtures of different NPs and surfactants exhibited antagonistic, synergistic, and additive effects. In particular, the toxicity of ZnO was observed to result from its dissolved Zn(2+); thus, the joint effects of the ZnO NPs and surfactants can be explained by the interactions between the Zn ions and the surfactants. Our study suggests that the potential hazards caused by mixtures of NPs and surfactants are different from those caused by single NPs. Because surfactants are extensively used in the field of nanotechnology and are likely to coexist with NPs in natural waters, the ecological risk assessments of NPs should consider the impacts of surfactants.
Collapse
Affiliation(s)
- Dali Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Zhifen Lin
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Collaborative Innovation Center for Regional Environmental Quality, China.
| | - Zhifeng Yao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Hongxia Yu
- School of the Environment, State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing 210093, China
| |
Collapse
|
122
|
Liu Q, Wu C, Cai H, Hu N, Zhou J, Wang P. Cell-based biosensors and their application in biomedicine. Chem Rev 2014; 114:6423-61. [PMID: 24905074 DOI: 10.1021/cr2003129] [Citation(s) in RCA: 185] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Qingjun Liu
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of the Ministry of Education, Department of Biomedical Engineering, Zhejiang University , Hangzhou 310027, China
| | | | | | | | | | | |
Collapse
|
123
|
Kołodziejczak-Radzimska A, Jesionowski T. Zinc Oxide-From Synthesis to Application: A Review. MATERIALS (BASEL, SWITZERLAND) 2014; 7:2833-2881. [PMID: 28788596 PMCID: PMC5453364 DOI: 10.3390/ma7042833] [Citation(s) in RCA: 725] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/25/2014] [Accepted: 03/27/2014] [Indexed: 01/28/2023]
Abstract
Zinc oxide can be called a multifunctional material thanks to its unique physical and chemical properties. The first part of this paper presents the most important methods of preparation of ZnO divided into metallurgical and chemical methods. The mechanochemical process, controlled precipitation, sol-gel method, solvothermal and hydrothermal method, method using emulsion and microemulsion enviroment and other methods of obtaining zinc oxide were classified as chemical methods. In the next part of this review, the modification methods of ZnO were characterized. The modification with organic (carboxylic acid, silanes) and inroganic (metal oxides) compounds, and polymer matrices were mainly described. Finally, we present possible applications in various branches of industry: rubber, pharmaceutical, cosmetics, textile, electronic and electrotechnology, photocatalysis were introduced. This review provides useful information for specialist dealings with zinc oxide.
Collapse
Affiliation(s)
- Agnieszka Kołodziejczak-Radzimska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Sklodowskiej-Curie 2, PL-60965 Poznan, Poland.
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Sklodowskiej-Curie 2, PL-60965 Poznan, Poland.
| |
Collapse
|
124
|
Doi K, Takeuchi H, Nii R, Akamatsu S, Kakizaki T, Kawano S. Self-assembly of 50 bp poly(dA)·poly(dT) DNA on highly oriented pyrolytic graphite via atomic force microscopy observation and molecular dynamics simulation. J Chem Phys 2014; 139:085102. [PMID: 24007039 DOI: 10.1063/1.4818595] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
This study has investigated the formation patterns resulting from the self-assembly of deoxyribonucleic acid (DNA) on highly oriented pyrolytic graphite (HOPG), using both experimental and molecular dynamics approaches. Under optimized conditions based on pretreatment of HOPG surface and specific solution concentrations, DNA is found to self-assemble to form various patterned networks. The associated self-assembly mechanism is elucidated using coarse-grained molecular dynamics simulations and fractal dimension analysis. The results of this work demonstrate an effective technique allowing the formation of arrays of negatively charged biomacromolecules on negatively charged HOPG surfaces.
Collapse
Affiliation(s)
- Kentaro Doi
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | | | | | | | | | | |
Collapse
|
125
|
Fanget A, Traversi F, Khlybov S, Granjon P, Magrez A, Forró L, Radenovic A. Nanopore integrated nanogaps for DNA detection. NANO LETTERS 2014; 14:244-9. [PMID: 24308689 DOI: 10.1021/nl403849g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A high-throughput fabrication of sub-10 nm nanogap electrodes combined with solid-state nanopores is described. These devices should allow concomitant tunneling and ionic current detection of translocating DNA molecules. We report the optimal fabrication parameters in terms of dose, resist thickness, and gap shape that allow easy reproduction of the fabrication process at wafer scale. The device noise and current voltage characterizations performed and the influence of the nanoelectrodes on the ionic current noise is identified. In some cases, ionic current rectification for connected or biased nanogap electrodes is also observed. In order to increase the extremely low translocation rates, several experimental strategies were tested and modeled using finite element analysis. Our findings are useful for future device designs of nanopore integrated electrodes for DNA sequencing.
Collapse
Affiliation(s)
- Axel Fanget
- Laboratory of Physics of Complex Matter, School of Basic Sciences and ‡Laboratory of Nanoscale Biology, Bioengineering Institute, School of Engineering, EPFL , 1015 Lausanne, Switzerland
| | | | | | | | | | | | | |
Collapse
|
126
|
Bubniene U, Oćwieja M, Bugelyte B, Adamczyk Z, Nattich-Rak M, Voronovic J, Ramanaviciene A, Ramanavicius A. Deposition of gold nanoparticles on mica modified by poly(allylamine hydrochloride) monolayers. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.08.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
127
|
Syed MA. Advances in nanodiagnostic techniques for microbial agents. Biosens Bioelectron 2014; 51:391-400. [DOI: 10.1016/j.bios.2013.08.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 07/12/2013] [Accepted: 08/07/2013] [Indexed: 12/19/2022]
|
128
|
Multi-enzymatic Systems with Designed 3D Architectures for Constructing Food Bioanalytical Sensors. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9730-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
129
|
Abstract
Biosensing has been one of the hottest topic attracting scientific minds since long back. It is so as biological entities are very complex and are directly associated with the existence of a healthy environment. The design of biosensors also has witnessed significant changes in the recent past. Biosensors for applications as diverse as food quality estimation, environmental monitoring, and diagnosis of clinical and metabolic complications have come to the fore. Nanotechnology has bestowed some highly exciting ingredients for the improvement of sensing phenomenon. The use of diverse nanomaterials ranging from nanoparticles, nanotubes, nanorods, and nanowires has enabled faster detection and its reproducibility in a much better way. The unique properties of nanomaterials such as high electrical conductivity, better shock bearing ability, and the sensitive responses such as piezoelectric and versatile color based detection mechanisms are only the results of congregation of nanomaterial properties. This paper highlights the different types of biosensors based on different types of nanomaterials and their developmental and implicational aspects.
Collapse
|
130
|
Abstract
Nowadays, metal nanoparticles have attracted a great scientific interest due to their unique optoelectronic and physicochemical properties with applications in diverse areas such as molecular diagnostics and drug delivery, electronics, catalysis or sensing. The development of techniques for the controlled synthesis of nanoparticles of well defined size, shape and composition has become a big challenge. Development of reliable and eco-friendly processes for synthesis of metallic nanoparticles is an important step in the field of applied nanotechnology. The use of biological systems as factories to produce nanoparticles is one way to achieve this objective. This study reports the synthesis of different metallic nanoparticles (gold, silver and platinum) through reduction of metal precursors by the extract of orange peel. It also demonstrates that particle size and shape could be controlled by varying parameters such as pH.
Collapse
|
131
|
Nanotechnology in glucose monitoring: Advances and challenges in the last 10 years. Biosens Bioelectron 2013; 47:12-25. [DOI: 10.1016/j.bios.2013.02.043] [Citation(s) in RCA: 195] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 02/20/2013] [Accepted: 02/26/2013] [Indexed: 12/31/2022]
|
132
|
Siontorou CG, Batzias FA. A methodological combined framework for roadmapping biosensor research: a fault tree analysis approach within a strategic technology evaluation frame. Crit Rev Biotechnol 2013; 34:31-55. [PMID: 23919240 DOI: 10.3109/07388551.2013.790339] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Biosensor technology began in the 1960s to revolutionize instrumentation and measurement. Despite the glucose sensor market success that revolutionized medical diagnostics, and artificial pancreas promise currently the approval stage, the industry is reluctant to capitalize on other relevant university-produced knowledge and innovation. On the other hand, the scientific literature is extensive and persisting, while the number of university-hosted biosensor groups is growing. Considering the limited marketability of biosensors compared to the available research output, the biosensor field has been used by the present authors as a suitable paradigm for developing a methodological combined framework for "roadmapping" university research output in this discipline. This framework adopts the basic principles of the Analytic Hierarchy Process (AHP), replacing the lower level of technology alternatives with internal barriers (drawbacks, limitations, disadvantages), modeled through fault tree analysis (FTA) relying on fuzzy reasoning to count for uncertainty. The proposed methodology is validated retrospectively using ion selective field effect transistor (ISFET) - based biosensors as a case example, and then implemented prospectively membrane biosensors, putting an emphasis on the manufacturability issues. The analysis performed the trajectory of membrane platforms differently than the available market roadmaps that, considering the vast industrial experience in tailoring and handling crystallic forms, suggest the technology path of biomimetic and synthetic materials. The results presented herein indicate that future trajectories lie along with nanotechnology, and especially nanofabrication and nano-bioinformatics, and focused, more on the science-path, that is, on controlling the natural process of self-assembly and the thermodynamics of bioelement-lipid interaction. This retained the nature-derived sensitivity of the biosensor platform, pointing out the differences between the scope of academic research and the market viewpoint.
Collapse
Affiliation(s)
- Christina G Siontorou
- Department of Industrial Management and Technology, University of Piraeus , Karaoli and Dimitriou, Piraeus , Greece
| | | |
Collapse
|
133
|
Cascadic multienzyme reaction-based electrochemical biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013. [PMID: 23828506 DOI: 10.1007/10_2013_228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
: Since the first glucose biosensor was developed by Clark and Lyons, there have been great efforts to develop effective enzyme biosensors for wide applications. Those efforts are closely related to the enhancement of biosensor performance, including sensitivity improvement, elevation of selectivity, and extension of the range of analytes that may be determined. Introduction of a cascadic multienzyme reaction to the electrochemical biosensor is one of those efforts. By employing more than two enzymes to the biosensor, its sensitivity and accuracy can be enhanced. Also, the narrow application range that is a typical limitation of single enzyme-based biosensor can be overcome. This chapter will discuss the fundamental principles for the development of cascadic multienzyme reaction-based electrochemical biosensors and their applications in clinical and environmental fields.
Collapse
|
134
|
Applications of Surface Modified Ionic Liquid/Nanomaterial Composite in Electrochemical Sensors and Biosensors. BIONANOSCIENCE 2013. [DOI: 10.1007/s12668-013-0094-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
135
|
Shin MJ, Kim JG, Shin JS. Amperometric Cholesterol Biosensor Using Layer-by-Layer Adsorption Technique on Polyaniline-coated Polyester Films. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2011.641641] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
136
|
Hosta-Rigau L, Zhang Y, Teo BM, Postma A, Städler B. Cholesterol--a biological compound as a building block in bionanotechnology. NANOSCALE 2013; 5:89-109. [PMID: 23172231 DOI: 10.1039/c2nr32923a] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Cholesterol is a molecule with many tasks in nature but also a long history in science. This feature article highlights the contribution of this small compound to bionanotechnology. We discuss relevant chemical aspects in this context followed by an overview of its self-assembly capabilities both as a free molecule and when conjugated to a polymer. Further, cholesterol in the context of liposomes is reviewed and its impact ranging from biosensing to drug delivery is outlined. Cholesterol is and will be an indispensable player in bionanotechnology, contributing to the progress of this potent field of research.
Collapse
|
137
|
Lönne M, Zhu G, Stahl F, Walter JG. Aptamer-modified nanoparticles as biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 140:121-54. [PMID: 23824145 DOI: 10.1007/10_2013_231] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aptamers are short oligonucleotides that are capable of selectively binding to their corresponding target. Therefore, they can be thought of as a nucleic acid-based alternative to antibodies and can substitute for their amino acid-based counterparts in analytical applications, including as receptors in biosensors. Here they offer several advantages because their nucleic acid nature and their binding via an induced fit mechanism enable novel sensing strategies. In this article, the utilization of aptamers as novel bio-receptors in combination with nanoparticles as transducer elements is reviewed. In addition to these analytical applications, the medical relevance of aptamer-modified nanoparticles is described.
Collapse
Affiliation(s)
- Maren Lönne
- Institut für Technische Chemie, Gottfried Wilhelm Leibniz Universität Hannover, Callinstr. 5, 30167, Hannover, Germany
| | | | | | | |
Collapse
|
138
|
Gupta B, Zhu Y, Guan B, Reece PJ, Gooding JJ. Functionalised porous silicon as a biosensor: emphasis on monitoring cells in vivo and in vitro. Analyst 2013; 138:3593-615. [DOI: 10.1039/c3an00081h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
139
|
Yildiz HB, Demirkol DO, Sayin S, Yilmaz M, Koysuren O, Kamaci M. New Amperometric Cholesterol Biosensors Using Poly(ethyleneoxide) Conducting Polymers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.821921] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
140
|
Yildiz HB, Talaz O, Kamaci M, Caliskan A, Caliskan S. Novel Photoelectrochemical Biosensors for Cholesterol Biosensing by Photonic “Wiring” of Cholesterol Oxidase. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2014.843393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
141
|
Pusch JME, Brondani D, Luza L, Dupont J, Vieira IC. Pt–Pd bimetallic nanoparticles dispersed in an ionic liquid and peroxidase immobilized on nanoclay applied in the development of a biosensor. Analyst 2013; 138:4898-906. [DOI: 10.1039/c3an36800a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
142
|
Karadag M, Geyik C, Demirkol DO, Ertas FN, Timur S. Modified gold surfaces by 6-(ferrocenyl)hexanethiol/dendrimer/gold nanoparticles as a platform for the mediated biosensing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 33:634-40. [PMID: 25427467 DOI: 10.1016/j.msec.2012.10.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 09/14/2012] [Accepted: 10/26/2012] [Indexed: 11/25/2022]
Abstract
An electrochemical biosensor mediated by using 6-(Ferrocenyl) hexanethiol (FcSH) was fabricated by construction of gold nanoparticles (AuNPs) on the surface of polyamidoamine dendrimer (PAMAM) modified gold electrode. Glucose oxidase (GOx) was used as a model enzyme and was immobilized onto the gold surface forming a self assembled monolayer via FcSH and cysteamine. Cyclic voltammetry and amperometry were used for the characterization of electrochemical response towards glucose substrate. Following the optimization of medium pH, enzyme loading, AuNP and FcSH amount, the linear range for the glucose was studied and found as 1.0 to 5.0mM with the detection limit (LOD) of 0.6mM according to S/N=3. Finally, the proposed Au/AuNP/(FcSH+Cyst)/PAMAM/GOx biosensor was successfully applied for the glucose analysis in beverages, and the results were compared with those obtained by HPLC.
Collapse
Affiliation(s)
- Murat Karadag
- Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova-Izmir, Turkey
| | - Caner Geyik
- Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova-Izmir, Turkey
| | - Dilek Odaci Demirkol
- Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova-Izmir, Turkey
| | - F Nil Ertas
- Ege University, Faculty of Science, Chemistry Department, 35100, Bornova-Izmir, Turkey
| | - Suna Timur
- Ege University, Faculty of Science, Biochemistry Department, 35100 Bornova-Izmir, Turkey.
| |
Collapse
|
143
|
Dendane N, Melnyk O, Xu T, Grandidier B, Boukherroub R, Stiévenard D, Coffinier Y. Direct characterization of native chemical ligation of peptides on silicon nanowires. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13336-13344. [PMID: 22931112 DOI: 10.1021/la3030217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We describe the site-specific and chemoselective immobilization of peptides on hydrogen-terminated silicon nanowires (SiNWs) using native chemical ligation (NCL) (i.e., the reaction of a thioester group with a cysteine moiety to give a stable amide bond). The SiNWs investigated in this work were grown via a vapor-liquid-solid mechanism and functionalized with a thioester moiety. The immobilization of the peptides on the SiNWs was demonstrated by synthesizing peptides with an N-terminal cysteine residue and labeled with tetramethylrhodamine or trifluoromethyl groups that were detected by fluorescence and X-ray photoelectron spectroscopy, respectively. The peptides labeled with tetramethylrhodamine or trifluoromethyl groups for fluorescence or X-ray photoelectron spectroscopy (XPS) detection studies were synthesized with an N-terminal cysteine residue. N-Terminal seryl peptides and carboxy-terminated SiNWs were used as controls to demonstrate the chemoselectivity of the peptide immobilization.
Collapse
Affiliation(s)
- Nabil Dendane
- IBL, UMR CNRS 8161, 1 rue du professeur Calmette, Lille, France
| | | | | | | | | | | | | |
Collapse
|
144
|
Nanotechnology-Based Biosensors and Diagnostics: Technology Push versus Industrial/Healthcare Requirements. BIONANOSCIENCE 2012. [DOI: 10.1007/s12668-012-0047-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
145
|
Optical nanobiosensor: A new analytical tool for monitoring carboplatin–DNA interaction in vitro. Talanta 2012; 97:218-21. [DOI: 10.1016/j.talanta.2012.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 04/02/2012] [Accepted: 04/06/2012] [Indexed: 11/18/2022]
|
146
|
Liu B, Lu L, Hua E, Jiang S, Xie G. Detection of the human prostate-specific antigen using an aptasensor with gold nanoparticles encapsulated by graphitized mesoporous carbon. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0822-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
147
|
Shinde SB, Fernandes CB, Patravale VB. Recent trends in in-vitro nanodiagnostics for detection of pathogens. J Control Release 2012; 159:164-80. [DOI: 10.1016/j.jconrel.2011.11.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Accepted: 11/23/2011] [Indexed: 11/17/2022]
|
148
|
Narang J, Chauhan N, Jain P, Pundir C. Silver nanoparticles/multiwalled carbon nanotube/polyaniline film for amperometric glutathione biosensor. Int J Biol Macromol 2012; 50:672-8. [DOI: 10.1016/j.ijbiomac.2012.01.023] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Accepted: 01/15/2012] [Indexed: 10/14/2022]
|
149
|
Abstract
Biosensors - classification, characterization and new trendsBiosensors represent promising analytical tools applicable in areas such as clinical diagnosis, food industry, environment monitoring and in other fields, where rapid and reliable analyses are needed. Some biosensors were successfully implemented in the commercial sphere, but majority needs to be improved in order to overcome some imperfections. This review covers the basic types, principles, constructions and use of biosensors as well as new trends used for their fabrication.
Collapse
|
150
|
Hahn YB, Ahmad R, Tripathy N. Chemical and biological sensors based on metal oxide nanostructures. Chem Commun (Camb) 2012; 48:10369-85. [DOI: 10.1039/c2cc34706g] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|