1
|
Rostova E, Ben Adiba C, Dietler G, Sekatskii SK. Kinetics of Antibody Binding to Membranes of Living Bacteria Measured by a Photonic Crystal-Based Biosensor. BIOSENSORS-BASEL 2016; 6:bios6040052. [PMID: 27727183 PMCID: PMC5192372 DOI: 10.3390/bios6040052] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/31/2016] [Accepted: 09/28/2016] [Indexed: 11/18/2022]
Abstract
Optical biosensors based on photonic crystal surface waves (PC SWs) offer a possibility to study binding interactions with living cells, overcoming the limitation of rather small evanescent field penetration depth into a sample medium that is characteristic for typical optical biosensors. Besides this, simultaneous excitation of s- and p-polarized surface waves with different penetration depths is realized here, permitting unambiguous separation of surface and volume contributions to the measured signal. PC-based biosensors do not require a bulk signal correction, compared to widely used surface plasmon resonance-based devices. We developed a chitosan-based protocol of PC chip functionalization for bacterial attachment and performed experiments on antibody binding to living bacteria measured in real time by the PCSW-based biosensor. Data analysis reveals specific binding and gives the value of the dissociation constant for monoclonal antibodies (IgG2b) against bacterial lipopolysaccharides equal to KD = 6.2 ± 3.4 nM. To our knowledge, this is a first demonstration of antibody-binding kinetics to living bacteria by a label-free optical biosensor.
Collapse
Affiliation(s)
- Ekaterina Rostova
- Laboratoire de Physique de la Matière Vivante, IPHYS, École Polytechnique Fédérale de Lausanne (EPFL); Rte de la Sorge, 1015 Lausanne, Switzerland.
| | - Carine Ben Adiba
- Laboratoire de Physique de la Matière Vivante, IPHYS, École Polytechnique Fédérale de Lausanne (EPFL); Rte de la Sorge, 1015 Lausanne, Switzerland.
| | - Giovanni Dietler
- Laboratoire de Physique de la Matière Vivante, IPHYS, École Polytechnique Fédérale de Lausanne (EPFL); Rte de la Sorge, 1015 Lausanne, Switzerland.
| | - Sergey K Sekatskii
- Laboratoire de Physique de la Matière Vivante, IPHYS, École Polytechnique Fédérale de Lausanne (EPFL); Rte de la Sorge, 1015 Lausanne, Switzerland.
| |
Collapse
|
2
|
Sangermano M, Periolatto M, Castellino M, Wang J, Dietliker K, Grützmacher JL, Grützmacher H. A Simple Preparation of Photoactive Glass Surfaces Allowing Coatings via the "Grafting-from" Method. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19764-19771. [PMID: 27403625 DOI: 10.1021/acsami.6b05822] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A simple and straightforward synthesis was developed to prepare the siloxy-substituted bis(acylphosphane)oxide 4-(trimethoxysilyl)butyl-3-[bis(2,4,6-trimethylbenzoyl)phosphinoyl]-2-methyl-propionate TMESI(2)-BAPO. This new photoinitiator was successfully fixed to glass surfaces. Subsequent irradiation with UV light in the presence of either a partially fluorinated acrylate or a specifically synthesized polysiloxane containing polymerizable acrylate functions allowed the generation of polymer chains which grew from the surface in an efficient radical polymerization process ("grafting-from" procedure). Durable hydrophobic surfaces were prepared which have contact angles between 93° and 95°. The silanization process with the photoinitiator and the grafting process were followed and analyzed with various techniques including high-resolution X-ray photoelectron spectroscopy.
Collapse
Affiliation(s)
- Marco Sangermano
- Politecnico di Torino , Dipartimento di Scienza Applicata e Tecnologia, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Monica Periolatto
- Politecnico di Torino , Dipartimento di Scienza Applicata e Tecnologia, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Micaela Castellino
- Center for Sustainable Futures - CSF@Polito, Istituto Italiano di Tecnologia , Corso Trento 21, 10129 Torino, Italy
| | - Jieping Wang
- Department of Chemistry and Biosciences, ETH Zürich , 8093 Zürich, Switzerland
| | - Kurt Dietliker
- Department of Chemistry and Biosciences, ETH Zürich , 8093 Zürich, Switzerland
| | - Joëlle Levalois Grützmacher
- Department of Chemistry and Biosciences, ETH Zürich , 8093 Zürich, Switzerland
- Université Antilles Guyane , BP 250, 97157 Pointe à Pitre Cédex, Guadeloupe, France
| | - Hansjörg Grützmacher
- Department of Chemistry and Biosciences, ETH Zürich , 8093 Zürich, Switzerland
- Lehn Institute of Functional Materials (LIFM), Sun Yat-Sen University , 510275 Guangzhou, China
| |
Collapse
|
3
|
Controlling cell growth with tailorable 2D nanoholes arrays. J Colloid Interface Sci 2016; 466:150-61. [DOI: 10.1016/j.jcis.2015.12.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/08/2015] [Accepted: 12/08/2015] [Indexed: 11/17/2022]
|
4
|
Shi L, Gehin T, Chevolot Y, Souteyrand E, Mangé A, Solassol J, Laurenceau E. Anti-heat shock protein autoantibody profiling in breast cancer using customized protein microarray. Anal Bioanal Chem 2015; 408:1497-506. [DOI: 10.1007/s00216-015-9257-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/30/2015] [Accepted: 12/07/2015] [Indexed: 10/22/2022]
|
5
|
Dimethyl adipimidate/Thin film Sample processing (DTS); A simple, low-cost, and versatile nucleic acid extraction assay for downstream analysis. Sci Rep 2015; 5:14127. [PMID: 26370251 PMCID: PMC4569962 DOI: 10.1038/srep14127] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/18/2015] [Indexed: 11/30/2022] Open
Abstract
Sample processing, especially that involving nucleic acid extraction, is a prerequisite step for the isolation of high quantities of relatively pure DNA for downstream analyses in many life science and biomedical engineering studies. However, existing methods still have major problems, including labor-intensive time-consuming methods and high costs, as well as requirements for a centrifuge and the complex fabrication of filters and membranes. Here, we first report a versatile Dimethyl adipimidate/Thin film based Sample processing (DTS) procedure without the limitations of existing methods. This procedure is useful for the extraction of DNA from a variety of sources, including 6 eukaryotic cells, 6 bacteria cells, and 2 body fluids in a single step. Specifically, the DTS procedure does not require a centrifuge and has improved time efficiency (30 min), affordability, and sensitivity in downstream analysis. We validated the DTS procedure for the extraction of DNA from human body fluids, as well as confirmed that the quality and quantity of the extracted DNA were sufficient to allow robust detection of genetic and epigenetic biomarkers in downstream analysis.
Collapse
|
6
|
Killian MS, Seiler S, Wagener V, Hahn R, Ebensperger C, Meyer B, Schmuki P. Interface chemistry and molecular bonding of functional ethoxysilane-based self-assembled monolayers on magnesium surfaces. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9006-9014. [PMID: 25785662 DOI: 10.1021/am5075634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The modification of magnesium implants with functional organic molecules is important for increasing the biological acceptance and for reducing the corrosion rate of the implant. In this work, we evaluated by a combined experimental and theoretical approach the adsorption strength and geometry of a functional self-assembled monolayer (SAM) of hydrolyzed (3-aminopropyl)triethoxysilane (APTES) molecules on a model magnesium implant surface. In time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS), only a minor amount of reverse attachment was observed. Substrate-O-Si signals could be detected, as well as other characteristic APTES fragments. The stability of the SAM upon heating in UHV was investigated additionally. Density-functional theory (DFT) calculations were used to explore the preferred binding mode and the most favorable binding configuration of the hydrolyzed APTES molecules on the hydroxylated magnesium substrate. Attachment of the molecules via hydrogen bonding or covalent bond formation via single or multiple condensation reactions were considered. The impact of the experimental conditions and the water concentration in the solvent on the thermodynamic stability of possible APTES binding modes is analyzed as a function of the water chemical potential of the environment. Finally, the influence of van der Waals contributions to the adsorption energy will be discussed.
Collapse
Affiliation(s)
- Manuela S Killian
- †Department of Materials Science and Engineering, Chair for Surface Science and Corrosion, Friedrich-Alexander-University Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Steffen Seiler
- ‡Interdisciplinary Center for Molecular Materials (ICMM) and Computer-Chemistry-Center (CCC), Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany
| | - Victoria Wagener
- †Department of Materials Science and Engineering, Chair for Surface Science and Corrosion, Friedrich-Alexander-University Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Robert Hahn
- †Department of Materials Science and Engineering, Chair for Surface Science and Corrosion, Friedrich-Alexander-University Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Christina Ebensperger
- ‡Interdisciplinary Center for Molecular Materials (ICMM) and Computer-Chemistry-Center (CCC), Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany
| | - Bernd Meyer
- ‡Interdisciplinary Center for Molecular Materials (ICMM) and Computer-Chemistry-Center (CCC), Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany
| | - Patrik Schmuki
- †Department of Materials Science and Engineering, Chair for Surface Science and Corrosion, Friedrich-Alexander-University Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany
- ¶Department of Chemistry, King Abdulaziz University, Jeddah 22254, Saudi Arabia
| |
Collapse
|
7
|
Vashist SK, Lam E, Hrapovic S, Male KB, Luong JHT. Immobilization of Antibodies and Enzymes on 3-Aminopropyltriethoxysilane-Functionalized Bioanalytical Platforms for Biosensors and Diagnostics. Chem Rev 2014; 114:11083-130. [DOI: 10.1021/cr5000943] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sandeep Kumar Vashist
- HSG-IMIT - Institut für Mikro- und Informationstechnik, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
- Laboratory for MEMS Applications, Department of Microsystems Engineering - IMTEK, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - Edmond Lam
- National Research Council Canada, Montreal, Quebec H4P 2R2, Canada
| | | | - Keith B. Male
- National Research Council Canada, Montreal, Quebec H4P 2R2, Canada
| | - John H. T. Luong
- Innovative Chromatography Group, Irish Separation Science Cluster (ISSC), Department of Chemistry and Analytical, Biological Chemistry Research Facility (ABCRF), University College Cork, Cork, Ireland
| |
Collapse
|
8
|
Lee K, Mazare A, Schmuki P. One-dimensional titanium dioxide nanomaterials: nanotubes. Chem Rev 2014; 114:9385-454. [PMID: 25121734 DOI: 10.1021/cr500061m] [Citation(s) in RCA: 506] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kiyoung Lee
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg , Martensstrasse 7, 91058 Erlangen, Germany
| | | | | |
Collapse
|
9
|
Rittich B, Španová A. SPE and purification of DNA using magnetic particles. J Sep Sci 2013; 36:2472-85. [DOI: 10.1002/jssc.201300331] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 05/13/2013] [Accepted: 05/13/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Bohuslav Rittich
- Faculty of Chemistry; Brno University of Technology; Brno Czech Republic
| | - Alena Španová
- Faculty of Chemistry; Brno University of Technology; Brno Czech Republic
| |
Collapse
|
10
|
Ardhaoui M, Bhatt S, Zheng M, Dowling D, Jolivalt C, Khonsari FA. Biosensor based on laccase immobilized on plasma polymerized allylamine/carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3197-205. [PMID: 23706201 DOI: 10.1016/j.msec.2013.03.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/16/2013] [Accepted: 03/29/2013] [Indexed: 10/27/2022]
Abstract
In this work, a simple and rapid method was used to functionalize carbon electrode in order to efficiently immobilize laccase for biosensor application. A stable allylamine coating was deposited using a low pressure inductively excited RF tubular plasma reactor under mild plasma conditions (low plasma power (10 W), few minutes) to generate high density amine groups (N/C ratio up to 0.18) on rough carbon surface electrodes. The longer was the allylamine plasma deposition time; the better was the surface coverage. Laccase from Trametes versicolor was physisorbed and covalently bound to these allylamine modified carbon surfaces. The laccase activities and current outputs measured in the presence of 2,2'-azinobis-(3-ethylbenzothiazole-6-sulfonic acid) (ABTS) showed that the best efficiency was obtained for electrode plasma coated during 30 min. They showed also that for all the tested electrodes, the activities and current outputs of the covalently immobilized laccases were twice higher than the physically adsorbed ones. The sensitivity of these biocompatible bioelectrodes was evaluated by measuring their catalytic efficiency for oxygen reduction in the presence of ABTS as non-phenolic redox substrate and 2,6-dimethoxyphenol (DMP) as phenolic one. Sensitivities of around 4.8 μA mg(-1)L and 2.7 μA mg(-1)L were attained for ABTS and DMP respectively. An excellent stability of this laccase biosensor was observed for over 6 months.
Collapse
Affiliation(s)
- Malika Ardhaoui
- Laboratoire de Génie des Procédés Plasma et Traitements de Surface, Université Pierre et Marie Curie-Chimie ParisTech, Paris, France.
| | | | | | | | | | | |
Collapse
|
11
|
Yang Z, Chevolot Y, Géhin T, Dugas V, Xanthopoulos N, Laporte V, Delair T, Ataman-Önal Y, Choquet-Kastylevsky G, Souteyrand E, Laurenceau E. Characterization of three amino-functionalized surfaces and evaluation of antibody immobilization for the multiplex detection of tumor markers involved in colorectal cancer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1498-1509. [PMID: 23305497 DOI: 10.1021/la3041055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Antibody microarrays are powerful and high-throughput tools for screening and identifying tumor markers from small sample volumes of only a few microliters. Optimization of surface chemistry and spotting conditions are crucial parameters to enhance antibodies' immobilization efficiency and to maintain their biological activity. Here, we report the implementation of an antibody microarray for the detection of tumor markers involved in colorectal cancer. Three-dimensional microstructured glass slides were functionalized with three different aminated molecules ((3-aminopropyl)dimethylethoxysilane (APDMES), Jeffamine, and chitosan) varying in their chain length, their amine density, and their hydrophilic/hydrophobic balance. The physicochemical properties of the resulting surfaces were characterized. Antibody immobilization efficiency through physical interaction was studied as a function of surface properties as well as a function of the immobilization conditions. The results show that surface energy, steric hindrance, and pH of spotting buffer have great effects on protein immobilization. Under optimal conditions, biological activities of four immobilized antitumor marker antibodies were evaluated in multiplex immunoassay for the detection of the corresponding tumor markers. Results indicated that the chitosan functionalized surface displayed the highest binding capacity and allowed to retain maximal biological activity of the four tested antibody/antigen systems. Thus, we successfully demonstrated the application of amino-based surface modification for antibody microarrays to efficiently detect tumor markers.
Collapse
Affiliation(s)
- Zhugen Yang
- Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, 69134 Ecully cedex, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Improvement of protein immobilization for the elaboration of tumor-associated antigen microarrays: application to the sensitive and specific detection of tumor markers from breast cancer sera. Biosens Bioelectron 2012; 40:385-92. [PMID: 23017679 DOI: 10.1016/j.bios.2012.08.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 07/25/2012] [Accepted: 08/07/2012] [Indexed: 01/27/2023]
Abstract
There is an urgent need to identify relevant tumor markers showing high sensitivity and specificity for early diagnosis and prognosis of breast cancer. Protein microarrays have demonstrated to be cost-effective, high through-put and powerful tools for screening and identifying tumor markers with only minute samples. Autoantibodies directed against tumor-associated antigens (TAAs) were shown to be relevant tumor markers. However, due to the variability of immune response from one individual to another and depending on the type of cancer, detection of only one type of anti-TAA autoantibody is not sufficient to give a reliable and precise diagnosis. It is necessary to use a set of several TAAs for determining specific autoimmune profiles. Therefore, combining various TAAs on different surfaces could improve sensitivity and specificity for anti-TAA autoantibody detection. Herein a panel of 10 proteins, including well-known tumor-associated antigens (TAAs) and potential new biomarkers of breast cancer, were immobilized onto microstructured microarray under optimized conditions (spotting pH buffer, surface chemistry, blocking procedure), in order to determine an autoimmune signature of breast cancer. Sera from 29 breast cancer patients and 28 healthy donors were screened in sandwich immunoassays on the miniaturized system to detect the eventual presence of anti-TAAs autoantibodies. Results indicated that the detection level of each anti-TAA autoantibody in a given serum sample was strongly dependant on the surface chemistry. Combining five TAAs (p53, Hsp60, Hsp70, Her2-Fc, NY-ESO-1) on two different surface chemistries (NHS and APDMES) allowed the significant detection of more than 82% breast cancer sera.
Collapse
|
13
|
Kim DH, Shin DS, Lee YS. Determination of protease subsite preference on SPOT peptide array by fluorescence quenching-based assay. J Pept Sci 2012; 18:394-9. [DOI: 10.1002/psc.2409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 02/25/2012] [Accepted: 03/02/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Do-Hyun Kim
- School of Chemical and Biological Engineering; Seoul National University; Seoul; 151-747; Korea
| | - Dong-Sik Shin
- School of Chemical and Biological Engineering; Seoul National University; Seoul; 151-747; Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering; Seoul National University; Seoul; 151-747; Korea
| |
Collapse
|
14
|
Creating highly dense and uniform protein and DNA microarrays through photolithography and plasma modification of glass substrates. Biosens Bioelectron 2012; 34:273-81. [DOI: 10.1016/j.bios.2012.02.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 02/08/2012] [Accepted: 02/10/2012] [Indexed: 12/20/2022]
|
15
|
Moreau T, Faye C, Baqué M, Desvignes I, Coussot G, Pascal R, Vandenabeele-Trambouze O. Antibody-based surfaces: Rapid characterization using two complementary colorimetric assays. Anal Chim Acta 2011; 706:354-60. [DOI: 10.1016/j.aca.2011.08.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 08/30/2011] [Accepted: 08/31/2011] [Indexed: 01/14/2023]
|
16
|
Shin DS, Seo JH, Sutcliffe JL, Revzin A. Photolabile micropatterned surfaces for cell capture and release. Chem Commun (Camb) 2011; 47:11942-4. [PMID: 21970983 DOI: 10.1039/c1cc15046d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for capture and release of cells was developed using a photolabile linker and antibody-attached glass surface with a poly(ethylene glycol) (PEG)-pattern.
Collapse
Affiliation(s)
- Dong-Sik Shin
- Department of Biomedical Engineering, University of California, Davis, 451 East Health Sciences Dr #2619, Davis, CA 95616, USA
| | | | | | | |
Collapse
|
17
|
Lee HY, Park SB. Surface modification for small-molecule microarrays and its application to the discovery of a tyrosinase inhibitor. ACTA ACUST UNITED AC 2011; 7:304-10. [DOI: 10.1039/c0mb00122h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Zeng X, Xu G, Gao Y, An Y. Surface Wettability of (3-Aminopropyl)triethoxysilane Self-Assembled Monolayers. J Phys Chem B 2010; 115:450-4. [DOI: 10.1021/jp109259b] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangxuan Zeng
- Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Guohua Xu
- Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Yuan Gao
- Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Yue An
- Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
| |
Collapse
|
19
|
Shin DS, Lee KN, Yoo BW, Kim J, Kim M, Kim YK, Lee YS. Automated maskless photolithography system for peptide microarray synthesis on a chip. ACTA ACUST UNITED AC 2010; 12:463-71. [PMID: 20666398 DOI: 10.1021/cc100009g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Maskless photolithographic peptide synthesis was performed on a glass chip using an automated peptide array synthesizer system. The peptide array synthesizer was built in a closed box, which contained optical and fluidic systems. The conditions for peptide synthesis were fully controlled by a computer program. For the peptide synthesis on a glass chip, 20 NVOC-protected amino acids were synthesized. The coupling efficiencies of two model peptide sequences were examined on ACA/APTS and PEG/CHI/GPTS chips. PEG/CHI/GPTS chip gave higher average stepwise yields of GIYWHHY (94%) and YIYGSFK (98%) than those of ACA/APTS chip. To quantify peptide-protein binding affinity, HPQ- or HPM-containing pentapeptides were synthesized on a PEG/CHI/GPTS chip and the binding event of Cy3 labeled-streptavidin was quantified. The peptide sequence of IQHPQ showed highest binding affinity with Cy3 labeled-streptavidin. The results demonstrated that the photolithographic peptide array synthesis method efficiently quantified the binding activities of protein-peptide interactions and it can be used for additional biological assay applications.
Collapse
Affiliation(s)
- Dong-Sik Shin
- School of Chemical and Biological Engineering and School of Electrical Engineering and Computer Science, Seoul National University, Seoul 151-744, Korea
| | | | | | | | | | | | | |
Collapse
|
20
|
Hsieh HY, Wang PC, Wu CL, Huang CW, Chieng CC, Tseng FG. Effective enhancement of fluorescence detection efficiency in protein microarray assays: application of a highly fluorinated organosilane as the blocking agent on the background surface by a facile vapor-phase deposition process. Anal Chem 2009; 81:7908-16. [PMID: 19705849 DOI: 10.1021/ac900552v] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Protein microarrays are emerging as an important enabling technology for the simultaneous investigation of complicated interactions among thousands of proteins. The solution-based blocking protocols commonly used in protein microarray assays often cause cross-contamination among probes and diminution of protein binding efficiency because of the spreading of blocking solution and the obstruction formed by the blocking molecules. In this paper, an alternative blocking process for protein microarray assays is proposed to obtain better performance by employing a vapor-phase deposition method to form self-assembled surface coatings using a highly fluorinated organosilane as the blocking agent on the background surfaces. Compared to conventional solution-based blocking processes, our experimental results showed that this vapor-phase process could shorten the blocking time from hours to less than 10 min, enhance the binding efficiency by up to 6 times, reduce the background noise by up to 16 times, and improve the S/N ratio by up to 64 times. This facile blocking process is compatible with current microarray assays using silica-based substrates and can be performed on many types of silane-modified surfaces.
Collapse
Affiliation(s)
- Hsin-Yi Hsieh
- Institute of NanoEngineering and MicroSystems (NEMS), National Tsing Hua University, Hsinchu 30013, Taiwan R.O.C
| | | | | | | | | | | |
Collapse
|
21
|
Bratskaya SY, Simon F, Zschoche S, Synytska A, Marinin DV. Covalent immobilization of chitosan on surfaces with anchoring layers of poly(glycidyl methacrylate) and maleic anhydride copolymers. POLYMER SCIENCE SERIES B 2009. [DOI: 10.1134/s1560090409090140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
22
|
Ganesan R, Lee HJ, Kim JB. Photoactive diazoketo-functionalized self-assembled monolayer for biomolecular patterning. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:8888-8893. [PMID: 19719213 DOI: 10.1021/la901870a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A diazoketo-functionalized alkoxysilane compound was synthesized, and its self-assembled monolayer (SAM) formation was studied on glass and silicon substrates. Infrared spectroscopy was employed to follow the photoreaction in this system, which proved that carboxylic groups were generated from diazoketo groups in the surface of the substrate. Photopatterning of biotin/streptavidin on the diazoketo-functionalized SAM shows the potential of this novel platform for biomolecular patterning.
Collapse
Affiliation(s)
- Ramakrishnan Ganesan
- Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology (KAIST), 373-1, Guseong-Dong, Yuseong-Gu, Daejeon, 305-701, Republic of Korea
| | | | | |
Collapse
|
23
|
Jang K, Sato K, Mawatari K, Konno T, Ishihara K, Kitamori T. Surface modification by 2-methacryloyloxyethyl phosphorylcholine coupled to a photolabile linker for cell micropatterning. Biomaterials 2009; 30:1413-20. [DOI: 10.1016/j.biomaterials.2008.11.013] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 11/09/2008] [Indexed: 11/15/2022]
|
24
|
Fabrication of protein chips based on 3-aminopropyltriethoxysilane as a monolayer. Biomed Microdevices 2008; 11:331-8. [DOI: 10.1007/s10544-008-9239-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
25
|
Liang RP, Gan GH, Qiu JD. Surface modification of poly(dimethylsiloxane) microfluidic devices and its application in simultaneous analysis of uric acid and ascorbic acid in human urine. J Sep Sci 2008; 31:2860-7. [PMID: 18655017 DOI: 10.1002/jssc.200800149] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ru-Ping Liang
- Department of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, PR China
| | | | | |
Collapse
|
26
|
Shi XW, Liu Y, Lewandowski AT, Wu LQ, Wu HC, Ghodssi R, Rubloff GW, Bentley WE, Payne GF. Chitosan Biotinylation and Electrodeposition for Selective Protein Assembly. Macromol Biosci 2008; 8:451-7. [DOI: 10.1002/mabi.200700220] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
27
|
Single-Protein Molecular Interactions on Polymer-Modified Glass Substrates for Nanoarray Chip Application Using Dual-Color TIRFM. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.5.783] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
28
|
Basarir F, Cuong N, Song WK, Yoon TH. Surface Modification via Plasma Polymerization of Allylamine for Antibody Immobilization. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/masy.200750310] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
29
|
Sibarani J, Takai M, Ishihara K. Surface modification on microfluidic devices with 2-methacryloyloxyethyl phosphorylcholine polymers for reducing unfavorable protein adsorption. Colloids Surf B Biointerfaces 2007; 54:88-93. [PMID: 17112710 DOI: 10.1016/j.colsurfb.2006.09.024] [Citation(s) in RCA: 151] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2006] [Revised: 09/06/2006] [Accepted: 09/26/2006] [Indexed: 11/19/2022]
Abstract
Surface modification of polymer materials for preparing microfluidic devices including poly(dimethyl siloxane) (PDMS) was investigated with phospholipids polymers such as poly(2-methacryloyloxylethyl phosphorylcholine(MPC)-co-n-butyl methacrylate) (PMB) and poly(MPC-co-2-ethylhexyl methacrylate-co-2-(N,N-dimethylamino)ethyl methacrylate) (PMED). The hydrophilicity of every surface on the polymer materials modified with these MPC polymers increased and the value of zeta-potential became close to zero. The protein adsorption on the polymer materials with and without the surface modification was evaluated using a protein mixture of human plasma fibrinogen and serum albumin. Amount of proteins adsorbed on these polymeric materials showed significant reduction by the surface modification with the MPC polymers compared to the uncoated surfaces ranging from 56 to 90%. Furthermore, we successfully prepared PDMS-based microchannel which was modified by simple coating with the PMB and PMED. The modified microchannel also revealed a significant reduction of adsorption of serum albumin. We conclude that the MPC polymers are useful for reducing unfavorable protein adsorption on microfluidic devices.
Collapse
Affiliation(s)
- James Sibarani
- Department of Materials Engineering and Center for Nanobio Integration, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | | | | |
Collapse
|
30
|
Schasfoort RBM. Proteomics-on-a-chip: the challenge to couple lab-on-a-chip unit operations. Expert Rev Proteomics 2006; 1:123-32. [PMID: 15966805 DOI: 10.1586/14789450.1.1.123] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This review describes a vision of a proteomics-on-a-chip device to separate, detect and identify the proteome. It guides the reader towards a development strategy, avoiding some of the pitfalls. It also describes the current state-of-the-art developments in proteomic analysis including available technologies, current market issues, the elements of an envisaged proteomics-on-a-chip device, the required microfabrication processes and the integration of the elements into one device. Address-flow microfluidics is a tool for connecting separation and detection platforms. The final section contains an expert opinion on the recommended development strategies, benefits of proteomics-on-a-chip in the life sciences and the anticipated market.
Collapse
Affiliation(s)
- Richard B M Schasfoort
- Biochip Group, Faculty of Science and Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
| |
Collapse
|
31
|
Tishchenko GA, Brus J, Dybal J, Pekárek M, Sedláková Z, Bleha M, Bastl Z. Surface-deposited acid/base on glass microfibers in formation of (3-aminopropyl)triethoxysilane-[2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane bioverlay. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:3633-9. [PMID: 16584237 DOI: 10.1021/la052580p] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Silanization of macroporous glass microfiber filters with (3-aminopropyl)triethoxysilane (APTES) and subsequent binding of [2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane (E-POSS) to the amine-terminated surface of microfibers was studied. Prior to the silanization, minute quantities of concentrated aqueous solutions of hydrochloric acid or ammonia were adsorbed in the filters while attachment of E-POSS molecules to APTES overlay was not specially catalyzed. Analysis of DRIFT, XPS, and 13C CP/MAS NMR spectra has shown that the formation of APTES overlay is affected differently by the surface-deposited acid or base. It was proved by XPS that microfibers with the adsorbed acid take up higher amounts of covalently attached APTES by 42% and, subsequently, of E-POSS by 65% than microfibers with the adsorbed ammonia. The molecular mechanics model calculations, which were made using silica as a template, have shown that approximately two-layered APTES coating can be built on the model surface if complete hydrolysis of ethoxy groups and vertical condensation of APTES species are assumed.
Collapse
Affiliation(s)
- Galina A Tishchenko
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | | | | | | | | | | | | |
Collapse
|
32
|
Selective Attachment of Mammalian Cells and Polystyrene Microbeads to Functional Amine Patterns Defined by Perfluoroalkyl Silane Surfaces. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.1.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
33
|
Greene G, Radhakrishna H, Tannenbaum R. Protein binding properties of surface-modified porous polyethylene membranes. Biomaterials 2005; 26:5972-82. [PMID: 15890400 DOI: 10.1016/j.biomaterials.2005.03.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Accepted: 03/23/2005] [Indexed: 11/23/2022]
Abstract
In this study, we quantified the adsorption of immunoglobulin G (IgG) protein onto several polyelectrolyte-modified sintered porous polyethylene (PPE) membranes. The polymer surfaces had both cationic and anionic charges obtained via the adsorption of polyethylenimine (PEI) and polyacrylic acid (PAA), respectively, onto plasma-activated PPE. The amount of IgG adsorption was determined by measuring the gamma radiation emitted by [125I]-IgG radio labeled protein. By studying the impact of pH and ionic strength on IgG adsorption, we attempted to characterize the role and nature of the electrostatic interactions involved in the adsorption process to better understand how these interactions were influenced by the charge and structure of immobilized polyelectrolyte complexes at modified membrane surfaces. We were able to show that surface modification of PPE membranes with adsorbed PEI monolayers and PEI-PAA bilayers can greatly improve the IgG binding ability of the membrane under optimized conditions. We also showed that the observed improvement in the IgG binding is derived from electrostatic interactions between IgG and the polyelectrolyte surface. In addition, we found that the greatest IgG adsorption occurred when the IgG and the surface possessed predominantly opposite charges, rather than when the surface possessed the greatest electrostatic charge. Finally, we have found that the molecular weight of the terminating polyelectrolyte has a noticeable effect upon the electrostatic interactions between IgG and the PEI-PAA bilayer-modified PPE surfaces.
Collapse
Affiliation(s)
- George Greene
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | | | | |
Collapse
|
34
|
Bergbreiter DE, Simanek EE, Owsik I. New synthetic methods for the formation of basic, polyvalent, hyperbranched grafts. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20916] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
35
|
|