1
|
Abstract
Surface modification is recognized as one of the fundamental techniques to fabricate biosensing interfaces. This review focuses on the surface modification of carbon substrates (GC and HOPG) and silica with a close-packed monolayer, in particular. In the cases of carbon substrates, GC and HOPG, it was demonstrated that surface modification of carbon substrates with diazonium derivatives could create a close-packed monolayer similar to the self-assembled monolayer (SAM) formation with mercapto derivatives. Similarly, the potential of trialkoxysilanes to form a close-packed monolayer was evaluated, and modification with a close-packed monolayer tended to occur under milder conditions when the trialkoxysilanes had a longer alkyl chain. In these studies, we synthesized surface modification materials having ferrocene as a redox active moiety to explore features of the modified surfaces by an electrochemical method using cyclic voltammetry, where surface concentrations of immobilized molecules and blocking effect were studied to obtain insight for density leading to a close-packed layer. Based on those findings, fabrication of a biosensing interface on the silica sensing chip of the waveguide-mode sensor was carried out using triethoxysilane derivatives bearing succinimide ester and oligoethylene glycol moieties to immobilize antibodies and to suppress nonspecific adsorption of proteins, respectively. The results demonstrate that the waveguide-mode sensor powered by the biosensing interface fabricated with those triethoxysilane derivatives and antibody has the potential to detect several tens ng/mL of biomarkers in human serum with unlabeled detection method.
Collapse
Affiliation(s)
- Mutsuo Tanaka
- Department of Life Science & Green Chemistry, Saitama Institute of Technology
| | - Osamu Niwa
- Advanced Science Research Laboratory, Saitama Institute of Technology
| |
Collapse
|
2
|
Meillan M, Buffeteau T, Le Bourdon G, Thomas L, Degueil M, Heuzé K, Bennetau B, Vellutini L. Mixed Self-Assembled Monolayers with Internal Urea Group on Silica Surface. ChemistrySelect 2017. [DOI: 10.1002/slct.201702434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matthieu Meillan
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Thierry Buffeteau
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Gwenaëlle Le Bourdon
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Laurent Thomas
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Marie Degueil
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Karine Heuzé
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Bernard Bennetau
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| | - Luc Vellutini
- University of Bordeaux, ISM, UMR 5255; F-33400 Talence France
- CNRS; ISM, UMR 5255; F-33400 Talence France
| |
Collapse
|
3
|
Ramin MA, Le Bourdon G, Heuzé K, Degueil M, Buffeteau T, Bennetau B, Vellutini L. Epoxy-terminated self-assembled monolayers containing internal urea or amide groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2783-2789. [PMID: 25679263 DOI: 10.1021/la5049375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the synthesis of new coupling agents with internal amide or urea groups possessing an epoxy-terminal group and trimethoxysilyl-anchoring group. The structural characterizations of the corresponding self-assembled monolayers (SAMs) were performed by polarization modulation infrared reflection adsorption spectroscopy (PM-IRRAS). The molecular assembly is mainly based on the intermolecular hydrogen-bonding between adjacent amide or urea groups in the monolayers. Because of the steric hindrance of amide or urea groups, the distance between the alkyl chains is too large to establish van der Waals interactions, inducing their disorder. The reactivity of the epoxy-terminal groups was successfully investigated through reaction with a fluorescent probe. We show that SAMs containing internal urea or amide groups exhibited a higher density of accessible epoxide groups than the corresponding long-chain (C22) glycidyl-terminated SAM.
Collapse
Affiliation(s)
- Michaël A Ramin
- ISM, UMR 5255 CNRS, Université de Bordeaux , 351 cours de la Liberation CS 10004, 33 405 Talence, France
| | | | | | | | | | | | | |
Collapse
|
4
|
Meillan M, Ramin MA, Buffeteau T, Marsaudon S, Odorico M, Chen SWW, Pellequer JL, Degueil M, Heuzé K, Vellutini L, Bennetau B. Self-assembled monolayer for AFM measurements of Tobacco Mosaic Virus (TMV) at the atomic level. RSC Adv 2014. [DOI: 10.1039/c3ra46716c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
|
5
|
Collins G, O'Dwyer C, Morris M, Holmes JD. Palladium-catalyzed coupling reactions for the functionalization of Si surfaces: superior stability of alkenyl monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11950-11958. [PMID: 23968278 DOI: 10.1021/la402480f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Palladium-catalyzed Suzuki, Heck, and Sonogashira coupling reactions were studied as reaction protocols for organic modification of Si surfaces. These synthetically useful protocols allow for surface modification of alkene, alkyne, and halide terminated surfaces. Surface oxidation and metal contamination were assessed by X-ray photoelectron spectroscopy. The nature of the primary passivation layer was an important factor in the oxidation resistance of the Si surface during the secondary functionalization. Specifically, the use of alkynes as the primary functionalization layer gave superior stability compared to alkene analogues. The ability to utilize Pd-catalyzed coupling chemistries on Si surfaces opens great versatility for potential molecular and nanoscale electronics and sensing/biosensing applications.
Collapse
Affiliation(s)
- Gillian Collins
- Department of Chemistry and the Tyndall National Institute, University College Cork , Cork, Ireland
| | | | | | | |
Collapse
|
6
|
Tanaka M, Sawaguchi T, Kuwahara M, Niwa O. Surface modification of silicon oxide with trialkoxysilanes toward close-packed monolayer formation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6361-6368. [PMID: 23668922 DOI: 10.1021/la4009834] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In order to scrutinize potential of trialkoxysilanes to form close-packed monolayer, surface modification of silicon oxide was carried out with the trialkoxysilanes bearing a ferrocene moiety for analysis by electrochemical methods. As it was found that hydrogen-terminated silicon reacts with trialkoxysilane through natural oxidation in organic solvents, where the silicon oxide layer is thin enough to afford conductivity for electrochemical analysis, hydrogen-terminated silicon wafer was immersed in trialkoxysilane solution for surface modification without oxidation treatment. Cyclic voltammetry measurements to determine surface concentrations of the immobilized ferrocene-silane on silicon surface were carried out with various temperature, concentration, solvent, and molecular structure, while the blocking effect in the cyclic voltammogram was investigated to obtain insight into density leading to the close-packed layer. The results suggested that a monolayer modification tended to occur under milder conditions when the ferrocene-silane had a longer alkyl chain, and formation of a close-packed layer to show significant blocking effect was observed. However, the surface modification proceeded even when surface concentration of the immobilized ferrocene-silane was greater than that expected for the monolayer. On the basis of these tendencies, the surface of silicon oxide modified with trialkoxysilane is considered to be a partial multilayer rather than monolayer although a close-packed layer is formed. This result is supported by the comparison with carbon surface modified with ferrocene-diazonium, in which a significant blocking effect was observed when surface concentrations of the immobilized ferrocene moiety are lower than that for silicon oxide modified with ferrocene-silane.
Collapse
Affiliation(s)
- Mutsuo Tanaka
- Biomedical Research Institute, Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | | | | | | |
Collapse
|
7
|
Ramin MA, Le Bourdon G, Daugey N, Bennetau B, Vellutini L, Buffeteau T. PM-IRRAS investigation of self-assembled monolayers grafted onto SiO2/Au substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6076-6084. [PMID: 21486004 DOI: 10.1021/la2006293] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) was used to characterize self-assembled monolayers (SAMs). Novel ester-terminated organosilicon coupling agents possessing a trialkoxysilyl headgroup and a urea group in the linear alkyl chains (4) were synthesized and grafted onto SiO(2)/Au substrates (SiO(2) film of 200 Å thickness deposited on gold mirror). This composite substrate allowed the anchoring of SAMs and preserved the high reflectivity for infrared radiation. PM-IRRAS spectra with very high signal-to-noise ratios have been obtained in the mid-infrared spectral range allowing monitoring of the grafted SAMs. Quantitative analysis of the measured signal is described to compare PM-IRRAS and conventional IRRAS spectra. This quantitative analysis has been validated since the band intensities in the corrected PM-IRRAS and conventional IRRAS spectra are identical. Orientation information on the different functional groups has been obtained comparing the corrected PM-IRRAS spectrum with the one calculated using isotropic optical constants of ester-terminated organosilicon coupling agents 4. The carbonyls of the urea groups are preferentially parallel to the substrate surface favoring intermolecular hydrogen bonding and consequently a close packing of the molecules attached to the surface. By contrast, the alkyl chains present gauche defects and are poorly oriented.
Collapse
Affiliation(s)
- Michaël A Ramin
- Institut des Sciences Moléculaires (UMR 5255-CNRS), Université Bordeaux 1, 351 Cours de la Libération, 33405 Talence, France
| | | | | | | | | | | |
Collapse
|
8
|
Hsu SH, Reinhoudt DN, Huskens J, Velders AH. Lateral interactions at functional monolayers. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02696d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
9
|
Altman M, Rachamim M, Ichiki T, Iron M, Evmenenko G, Dutta P, van der Boom M. Designing Surface-Confined Coordination Oligomers. Chemistry 2010; 16:6744-7. [DOI: 10.1002/chem.201000690] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Dinh DH, Vellutini L, Bennetau B, Dejous C, Rebière D, Pascal E, Moynet D, Belin C, Desbat B, Labrugère C, Pillot JP. Route to smooth silica-based surfaces decorated with novel self-assembled monolayers (SAMs) containing glycidyl-terminated very long hydrocarbon chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:5526-5535. [PMID: 19378931 DOI: 10.1021/la804088d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Novel glycidyl-terminated organosilicon coupling agents possessing a trialkoxysilyl head group and a very long hydrocarbon chain (C22) were synthesized. Their ability to afford densely packed self-assembled monolayers (SAMs) grafted on silica-based surfaces was investigated. Transmission FT-IR spectra showed that the most regular films were obtained by using trichloracetic acid as the catalyst (10 M%). Atomic force microscopy (AFM) and optical ellipsometry were consistent with well ordered monolayers exhibiting a marked decrease of the surface roughness. Epifluorescence microscopy revealed that these SAMs possessed a better surface reactivity than monolayers obtained with the commercially available (3-glycidoxypropyl) trimethoxysilane (GPTS) upon grafting of a fluorescent probe (dansylcadaverin). Moreover, direct attachment of fluorescent antibodies (RAG-TRITC) through covalent binding led to higher mean fluorescence intensities, showing that these new SAMs possess high potential for the immobilization of biological molecules.
Collapse
Affiliation(s)
- Duy Hai Dinh
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR 5255-CNRS, 351 cours de la Libération, 33405 Talence Cedex, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Zhu LL, Li X, Ji FY, Ma X, Wang QC, Tian H. Photolockable ratiometric viscosity sensitivity of cyclodextrin polypseudorotaxane with light-active rotor graft. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:3482-3486. [PMID: 19275178 DOI: 10.1021/la8042457] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A prototype, based on light-active fluorescent rotor grafted to beta-cyclodextrin, shows a good solvent viscosity-sensitive behavior due to the environment-dependent nonradiative decay. With the reversible photoisomerization of the cyanostilbene unit, the viscosity sensitivity of the molecular rotor could be locked and activated, and the two switchable states can be distinguished by fluorescent signals. This cyclodextrin derivative was threaded to form a novel polypseudorotaxane. Such supramolecular assembly displays a lockable ratiometric fluorescent viscosity sensitivity with two emission channels: one aroused by fluorophore's intramolecular excimer without influenced by viscosity is used to gauge the concentration of the compound, while the other corresponding to the monomer's rotor fluorescence acts as a viscosity-sensitive signal and it can be shut off by UV irradiation.
Collapse
Affiliation(s)
- Liang-Liang Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, PR China
| | | | | | | | | | | |
Collapse
|
12
|
Puniredd SR, Assad O, Haick H. Highly Stable Organic Monolayers for Reacting Silicon with Further Functionalities: The Effect of the C−C Bond nearest the Silicon Surface. J Am Chem Soc 2008; 130:13727-34. [DOI: 10.1021/ja804674z] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sreenivasa Reddy Puniredd
- The Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 32000, Israel
| | - Ossama Assad
- The Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 32000, Israel
| | - Hossam Haick
- The Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|
13
|
Puniredd SR, Assad O, Haick H. Highly Stable Organic Modification of Si(111) Surfaces: Towards Reacting Si with Further Functionalities while Preserving the Desirable Chemical Properties of Full Si−C Atop Site Terminations. J Am Chem Soc 2008; 130:9184-5. [DOI: 10.1021/ja800855s] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sreenivasa Reddy Puniredd
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion, Israel Institute of Technology, Haifa 32000, Israel
| | - Ossama Assad
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion, Israel Institute of Technology, Haifa 32000, Israel
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion, Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|