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Rao X, Abou Hassan A, Guyon C, Martinez Ruiz EO, Tatoulian M, Ognier S. Synthesis of benzaldehyde with high selectivity using immobilized AuNPs and AuNPs@zeolite in a catalytic microfluidic system. LAB ON A CHIP 2019; 19:2866-2873. [PMID: 31309213 DOI: 10.1039/c9lc00386j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the present work, gold based catalysts were synthesized and immobilized on the surface of cyclic olefin copolymer (COC) microreactors. The microreactors were subsequently applied in a homemade microfluidic system for synthesizing benzaldehyde by oxidation of benzyl alcohol in water medium. The Au nanoparticles (NPs) immobilized on the inner surface of the microchannel showed a very high selectivity (94%) for benzaldehyde, while zeolite NPs exhibited only an adsorption feature to this reaction. Moreover, the results showed that the AuNP catalytic activity was maintained for at least 9 hours. However, the obtained conversion with AuNPs was only 20%, indicating a relatively low productivity. In comparison, AuNPs assembled on the surface of zeolite NPs (AuNPs@zeolite) and immobilized in the microchannel showed the best catalytic performance, as the highest benzaldehyde selectivity (>99%) with a relatively high benzyl alcohol conversion of 42.4% was achieved under the same conditions. To the best of our knowledge, this is the first example demonstrating the use of AuNP or AuNP@zeolite catalysts in a microsystem performing such high selectivity for benzaldehyde in water medium.
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Affiliation(s)
- Xi Rao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P.R. China. and Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France and School of Materials Science and Engineering and Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Ali Abou Hassan
- Sorbonne Université, Centre National de la Recherche Scientifique CNRS, Physico-chimie des Electrolytes et Nanosystèmes InterfaciauX, PHENIX, F-75005 Paris, France
| | - Cédric Guyon
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Erick Osvaldo Martinez Ruiz
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P.R. China. and Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France and School of Materials Science and Engineering and Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Michaël Tatoulian
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Stephanie Ognier
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
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2
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Gandhiraman RP, Manickam G, Kerr L, Dixit CK, Doyle C, Williams DE, Daniels S. Plasma-Fabricated Surface Plasmon Resonance Chip for Biosensing. Aust J Chem 2015. [DOI: 10.1071/ch14324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This work reports the fabrication of a biosensing chip surface designed for plasmonic detection, and features a layer of noble metal nanoparticles encapsulated as a sandwich within amine-functionalized polysiloxane layers formed by plasma-enhanced chemical vapour deposition. The collective surface plasmon resonance (CSPR) phenomenon characteristic of a dense particle layer is demonstrated for encapsulated gold nanoparticles of different diameters. Biomolecular immobilization is carried out through the amine functional groups that are part of the encapsulating layer. The detection of biomolecular binding events at the sensor surface is demonstrated both by a shift in resonance wavelength at constant angle of incidence using SPR-enhanced spectroscopic ellipsometry and by detecting the angular shift in resonance in a commercial SPR instrument (Biacore®). Taken with other results, this work shows how a complete SPR chip can be assembled by a rapid sequence of operations in a single plasma chamber.
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3
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Gandhiraman RP, Nordlund D, Jayan V, Meyyappan M, Koehne JE. Scalable low-cost fabrication of disposable paper sensors for DNA detection. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22751-22760. [PMID: 25423585 PMCID: PMC4278686 DOI: 10.1021/am5069003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 11/25/2014] [Indexed: 06/04/2023]
Abstract
Controlled integration of features that enhance the analytical performance of a sensor chip is a challenging task in the development of paper sensors. A critical issue in the fabrication of low-cost biosensor chips is the activation of the device surface in a reliable and controllable manner compatible with large-scale production. Here, we report stable, well-adherent, and repeatable site-selective deposition of bioreactive amine functionalities and biorepellant polyethylene glycol-like (PEG) functionalities on paper sensors by aerosol-assisted, atmospheric-pressure, plasma-enhanced chemical vapor deposition. This approach requires only 20 s of deposition time, compared to previous reports on cellulose functionalization, which takes hours. A detailed analysis of the near-edge X-ray absorption fine structure (NEXAFS) and its sensitivity to the local electronic structure of the carbon and nitrogen functionalities. σ*, π*, and Rydberg transitions in C and N K-edges are presented. Application of the plasma-processed paper sensors in DNA detection is also demonstrated.
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Affiliation(s)
- Ram P. Gandhiraman
- NASA Ames Research Center, Moffett
Field, California 94035, United States
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National
Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Vivek Jayan
- NASA Ames Research Center, Moffett
Field, California 94035, United States
| | - M. Meyyappan
- NASA Ames Research Center, Moffett
Field, California 94035, United States
| | - Jessica E. Koehne
- NASA Ames Research Center, Moffett
Field, California 94035, United States
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4
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Escorihuela J, González-Martínez MÁ, López-Paz JL, Puchades R, Maquieira Á, Gimenez-Romero D. Dual-Polarization Interferometry: A Novel Technique To Light up the Nanomolecular World. Chem Rev 2014; 115:265-94. [DOI: 10.1021/cr5002063] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jorge Escorihuela
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Miguel Ángel González-Martínez
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - José Luis López-Paz
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Rosa Puchades
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - Ángel Maquieira
- Department
of Chemistry, Institute of Molecular Recognition and Technological
Development, Universitat Politècnica de València, Camino
de Vera s/n, 46022 València, Spain
| | - David Gimenez-Romero
- Physical
Chemistry Department, Faculty of Chemistry, Universitat de València, Avenida Dr. Moliner 50, 46100 Burjassot, València, Spain
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Song L, Zhao J, Jin J, Ma J, Liu J, Luan S, Yin J. Fabricating antigen recognition and anti-bioadhesion polymeric surface via a photografting polymerization strategy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 36:57-64. [DOI: 10.1016/j.msec.2013.11.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 11/08/2013] [Accepted: 11/28/2013] [Indexed: 12/26/2022]
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6
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Ma J, Luan S, Song L, Jin J, Yuan S, Yan S, Yang H, Shi H, Yin J. Fabricating a cycloolefin polymer immunoassay platform with a dual-function polymer brush via a surface-initiated photoiniferter-mediated polymerization strategy. ACS APPLIED MATERIALS & INTERFACES 2014; 6:1971-1978. [PMID: 24422426 DOI: 10.1021/am405017h] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The development of technologies for a biomedical detection platform is critical to meet the global challenges of various disease diagnoses. In this study, an inert cycloolefin polymer (COP) support was modified with two-layer polymer brushes possessing dual functions, i.e., a low fouling poly[poly(ethylene glycol) methacrylate] [p(PEGMA)] bottom layer and a poly(acrylic acid) (PAA) upper layer for antibody loading, via a surface-initiated photoiniferter-mediated polymerization strategy for fluorescence-based immunoassay. It was demonstrated through a confocal laser scanner that, for the as-prepared COP-g-PEG-b-PAA-IgG supports, nonspecific protein adsorption was suppressed, and the resistance to nonspecific protein interference on antigen recognition was significantly improved, relative to the COP-g-PAA-IgG references. This strategy for surface modification of a polymeric platform is also applicable to the fabrication of other biosensors.
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Affiliation(s)
- Jiao Ma
- State Key Laboratory of Polymer and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
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Ma J, Luan S, Jin J, Song L, Yuan S, Zheng W, Yin J. Surface modification of cycloolefin polymer via surface-initiated photoiniferter-mediated polymerization for suppressing bioadhesion. RSC Adv 2014. [DOI: 10.1039/c4ra02619e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Cycloolefin polymer was modified via surface-initiated photoiniferter-mediated polymerization for suppressing bioadhesion.
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Affiliation(s)
- Jiao Ma
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences
| | - Shifang Luan
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
| | - Jing Jin
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
| | - Lingjie Song
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences
| | - Shuaishuai Yuan
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences
| | - Wanling Zheng
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
| | - Jinghua Yin
- State Key Laboratory of Polymer and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, People's Republic of China
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8
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Song L, Zhao J, Luan S, Ma J, Liu J, Xu X, Yin J. Fabrication of a detection platform with boronic-acid-containing zwitterionic polymer brush. ACS APPLIED MATERIALS & INTERFACES 2013; 5:13207-13215. [PMID: 24299274 DOI: 10.1021/am404206v] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Development of technologies for biomedical detection platform is critical to meet the global challenges of various disease diagnoses, especially for point-of-use applications. Because of its natural simplicity, effectiveness, and easy repeatability, random covalent-binding technique is widely adopted in antibody immobilization. However, its antigen-binding capacity is relatively low when compared to site-specific immobilization of antibody. Herein, we report that a detection platform modified with boronic acid (BA)-containing sulfobetaine-based polymer brush. Mainly because of the advantage of oriented immobilization of antibody endowed with BA-containing three-dimensional polymer brush architecture, the platform had a high antigen-binding capacity. Notably, nonspecific protein adsorption was also suppressed by the zwitterionic pendants, thus greatly enhanced signal-to-noise (S/N) values for antigen recognition. Furthermore, antibodies captured by BA pendants could be released in dissociation media. This new platform is promising for potential applications in immunoassays.
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Affiliation(s)
- Lingjie Song
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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9
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Nwankire CE, Donohoe GG, Zhang X, Siegrist J, Somers M, Kurzbuch D, Monaghan R, Kitsara M, Burger R, Hearty S, Murrell J, Martin C, Rook M, Barrett L, Daniels S, McDonagh C, O’Kennedy R, Ducrée J. At-line bioprocess monitoring by immunoassay with rotationally controlled serial siphoning and integrated supercritical angle fluorescence optics. Anal Chim Acta 2013; 781:54-62. [DOI: 10.1016/j.aca.2013.04.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 02/28/2013] [Accepted: 04/08/2013] [Indexed: 12/25/2022]
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Gubala V, Siegrist J, Monaghan R, O'Reilly B, Gandhiraman RP, Daniels S, Williams DE, Ducrée J. Simple approach to study biomolecule adsorption in polymeric microfluidic channels. Anal Chim Acta 2012; 760:75-82. [PMID: 23265736 DOI: 10.1016/j.aca.2012.11.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 11/13/2012] [Accepted: 11/16/2012] [Indexed: 02/05/2023]
Abstract
Herein a simple analytical method is presented for the characterization of biomolecule adsorption on cyclo olefin polymer (COP, trade name: Zeonor(®)) substrates which are widely used in microfluidic lab-on-a-chip devices. These Zeonor(®) substrates do not possess native functional groups for specific reactions with biomolecules. Therefore, depending on the application, such substrates must be functionalized by surface chemistry methods to either enhance or suppress biomolecular adsorption. This work demonstrates a microfluidic method for evaluating the adsorption of antibodies and oligonucleotides surfaces. The method uses centrifugal microfluidic flow-through chips and can easily be implemented using common equipment such as a spin coater. The working principle is very simple. The user adds 40 L of the solution containing the sample to the starting side of a microfluidic channel, where it is moved through by centrifugal force. Some molecules are adsorbed in the channel. The sample is then collected at the other end in a small reservoir and the biomolecule concentration is measured. As a pilot application, we characterized the adsorption of goat anti-human IgG and a 20-mer DNA on Zeonor(®), and on three types of functionalized Zeonor: 3-aminopropyltriethoxysilane (APTES) modified surface with mainly positive charge, negatively charged surface with immobilized bovine serum albumin (BSA), and neutral, hydrogel-like film with polyethylene glycol (PEG) characteristics. This simple analytical approach adds to the fundamental understanding of the interaction forces in real, microfluidic systems. This method provides a straightforward and rapid way to screen surface compositions and chemistry, and relate these to their effects on the sensitivity and resistance to non-specific binding of bioassays using them. In an additional set of experiments, the surface area of the channels in this universal microfluidic chip was increased by precision milling of microscale trenches. This modified surface was then coated with APTES and tested for its potential to serve as a unique protein dilution feature.
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Affiliation(s)
- Vladimir Gubala
- Biomedical Diagnostics Institute (BDI), National Centre for Sensor Research (NCSR), Dublin City University, Dublin 9, Ireland.
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11
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Gubala V, Harris LF, Ricco AJ, Tan MX, Williams DE. Point of Care Diagnostics: Status and Future. Anal Chem 2011; 84:487-515. [DOI: 10.1021/ac2030199] [Citation(s) in RCA: 832] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Vladimir Gubala
- Biomedical Diagnostics Institute, Dublin City University, Dublin 9, Ireland
| | - Leanne F. Harris
- Biomedical Diagnostics Institute, Dublin City University, Dublin 9, Ireland
| | - Antonio J. Ricco
- Biomedical Diagnostics Institute, Dublin City University, Dublin 9, Ireland
| | - Ming X. Tan
- Biomedical Diagnostics Institute, Dublin City University, Dublin 9, Ireland
| | - David E. Williams
- Biomedical Diagnostics Institute, Dublin City University, Dublin 9, Ireland
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12
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Gandhiraman RP, Le NCH, Dixit CK, Volcke C, Doyle C, Gubala V, Uppal S, Monaghan R, James B, O'Kennedy R, Daniels S, Williams DE. Multi-layered plasma-polymerized chips for SPR-based detection. ACS APPLIED MATERIALS & INTERFACES 2011; 3:4640-4648. [PMID: 22029622 DOI: 10.1021/am201061k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The surface functionalization of a noble metal is crucial in a surface plasmon resonance-based biomolecular detection system because the interfacial coating must retain the activity of immobilized biomolecules while enhancing the optimal loading. We present here a one-step, room-temperature, high-speed, gas-phase plasma polymerization process for functionalizing gold substrates using siloxane as an adhesion layer and acrylic acid as a functional layer. Siloxane- and thiol-based coatings were compared for their performance as adhesion and the interfacial layer for subsequent functionalization. An in situ sequential deposition of siloxane and acrylic acid resulted in a 7-fold increase in carboxylic functionality surfacial content compared to films deposited with thiol-containing precursors. Grading of the layer composition achieved as a consequence of ion-induced mixing on the surface coating under the application of the plasma is confirmed through secondary ion mass spectroscopic studies. DNA hybridization assays were demonstrated on gold/glass substrates using surface plasmon enhanced ellipsometry and the applicability of this coating for protein immunoassays were demonstrated with plasma functionalized gold/plastic substrates in Biacore 3000 SPR instrument.
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Affiliation(s)
- Ram P Gandhiraman
- Biomedical Diagnostics Institute (BDI), Dublin City University, Glasnevin, Dublin-9, Ireland.
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O'Mahony CC, Gubala V, Gandhiraman RP, Daniels S, Yuk JS, MacCraith BD, Williams DE. Improving the sensitivity of immunoassays with PEG-COOH-like film prepared by plasma-based technique. J Biomed Mater Res A 2011; 100:230-5. [DOI: 10.1002/jbm.a.33268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 07/09/2011] [Accepted: 07/17/2011] [Indexed: 11/07/2022]
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14
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Charlton C, Gubala V, Gandhiraman RP, Wiechecki J, Le NCH, Coyle C, Daniels S, MacCraith BD, Williams DE. TIRF microscopy as a screening method for non-specific binding on surfaces. J Colloid Interface Sci 2011; 354:405-9. [DOI: 10.1016/j.jcis.2010.10.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 10/12/2010] [Accepted: 10/13/2010] [Indexed: 11/29/2022]
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15
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Mirsaidov U, Timashev SF, Polyakov YS, Misurkin PI, Musaev I, Polyakov SV. Analytical method for parameterizing the random profile components of nanosurfaces imaged by atomic force microscopy. Analyst 2011; 136:570-6. [DOI: 10.1039/c0an00498g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Total internal reflection ellipsometry as a label-free assessment method for optimization of the reactive surface of bioassay devices based on a functionalized cycloolefin polymer. Anal Bioanal Chem 2010; 398:1927-36. [DOI: 10.1007/s00216-010-4099-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Revised: 08/03/2010] [Accepted: 08/04/2010] [Indexed: 10/19/2022]
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17
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Gandhiraman* RP, Volcke C, Gubala V, Doyle C, Basabe-Desmonts L, Dotzler C, Toney MF, Iacono M, Nooney RI, Daniels S, James B, Williams DE. High efficiency amine functionalization of cycloolefin polymer surfaces for biodiagnostics. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b925737c] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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