1
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Shaver A, Arroyo-Currás N. Expanding the Monolayer Scope for Nucleic Acid-Based Electrochemical Sensors Beyond Thiols on Gold: Alkylphosphonic Acids on ITO. ECS SENSORS PLUS 2023; 2:010601. [PMID: 37006966 PMCID: PMC10053865 DOI: 10.1149/2754-2726/acc4d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Indexed: 03/18/2023]
Abstract
Electrochemical biosensors are a powerful and rapidly evolving molecular monitoring technology. Evidenced by the success of the continuous glucose monitor in managing Type 1 Diabetes, these sensors are capable of precise, accurate measurements in unprocessed biological environments. Nucleic acid-based electrochemical sensors (NBEs) are a specific type of biosensor that employs the target binding and conformational dynamics of nucleic acids for signal transduction. Currently, the vast majority of NBEs are fabricated via self-assembly of alkylthiols on Au electrodes. However, this architecture is limited in scope, as Au electrodes are not universally deployable for all potential NBE applications. Here, to expand the repertoire of materials on which NBEs can be made, we describe the multistep procedure for creating sensing monolayers of alkylphosphonic acids on a conductive oxide surface. Using such monolayers on indium tin oxide (ITO)-coated glass slides, we couple redox reporter-modified nucleic acids and demonstrate signaling of procaine-binding NBE sensors in buffer and human serum. We investigate the operational stability of these NBE sensors to reveal faster signal loss relative to benchmark thiol-on-gold sensing layers, a result that arises due to poor stability of the underlying ITO. Finally, we discuss future directions to continue expansion of NBE sensor materials and applications.
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Affiliation(s)
- Alexander Shaver
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States of America
| | - Netzahualcóyotl Arroyo-Currás
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21202, United States of America
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States of America
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2
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Wang L, Schubert US, Hoeppener S. Surface chemical reactions on self-assembled silane based monolayers. Chem Soc Rev 2021; 50:6507-6540. [PMID: 34100051 DOI: 10.1039/d0cs01220c] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In this review, we aim to update our review "Chemical modification of self-assembled silane-based monolayers by surface reactions" which was published in 2010 and has developed into an important guiding tool for researchers working on the modification of solid substrate surface properties by chemical modification of silane-based self-assembled monolayers. Due to the rapid development of this field of research in the last decade, the utilization of chemical functionalities in self-assembled monolayers has been significantly improved and some new processes were introduced in chemical surface reactions for tailoring the properties of solid substrates. Thus, it is time to update the developments in the surface functionalization of silane-based molecules. Hence, after a short introduction on self-assembled monolayers, this review focuses on a series of chemical reactions, i.e., nucleophilic substitution, click chemistry, supramolecular modification, photochemical reaction, and other reactions, which have been applied for the modification of hydroxyl-terminated substrates, like silicon and glass, which have been reported during the last 10 years.
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Affiliation(s)
- Limin Wang
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University, Humboldtstr. 10, 07743 Jena, Germany
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3
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Brush-modified materials: Control of molecular architecture, assembly behavior, properties and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2019.101180] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Heidary N, Harris TGAA, Ly KH, Kornienko N. Artificial photosynthesis with metal and covalent organic frameworks (MOFs and COFs): challenges and prospects in fuel-forming electrocatalysis. PHYSIOLOGIA PLANTARUM 2019; 166:460-471. [PMID: 30706497 DOI: 10.1111/ppl.12935] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
Mimicking photosynthesis in generating chemical fuels from sunlight is a promising strategy to alleviate society's demand for fossil fuels. However, this approach involves a number of challenges that must be overcome before this concept can emerge as a viable solution to society's energy demand. Particularly in artificial photosynthesis, the catalytic chemistry that converts energy in the form of electricity into carbon-based fuels and chemicals has yet to be developed. Here, we describe the foundational work and future prospects of an emerging and promising class of materials: metal- and covalent-organic frameworks (MOFs and COFs). Within this context, these porous and tuneable framework materials have achieved initial success in converting abundant feedstocks (H2 O and CO2 ) into chemicals and fuels. In this review, we first highlight key achievements in this direction. We then follow with a perspective on precisely how MOFs and COFs can perform in ways not possible with conventional molecular or heterogeneous catalysts. We conclude with a view on how spectroscopically probing MOF and COF catalysis can be used to elucidate reaction mechanisms and material dynamics throughout the course of reaction.
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Affiliation(s)
- Nina Heidary
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Department of Chemistry, Université de Montréal, Quebec, H3C 3J7, Canada
| | | | - Khoa H Ly
- Fakultät für Chemie und Lebensmittelchemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Nikolay Kornienko
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Department of Chemistry, Université de Montréal, Quebec, H3C 3J7, Canada
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5
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Isozaki K, Shimoaka T, Oshiro S, Yamaguchi A, Pincella F, Ueno R, Hasegawa T, Watanabe T, Takaya H, Nakamura M. Robust Surface Plasmon Resonance Chips for Repetitive and Accurate Analysis of Lignin-Peptide Interactions. ACS OMEGA 2018; 3:7483-7493. [PMID: 31458905 PMCID: PMC6644341 DOI: 10.1021/acsomega.8b01161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 06/22/2018] [Indexed: 05/30/2023]
Abstract
We have developed novel surface plasmon resonance (SPR) sensor chips whose surfaces bear newly synthesized functional self-assembled monolayer (SAM) anchoring lignin through covalent chemical bonds. The SPR sensor chips are remarkably robust and suitable for repetitive and accurate measurement of noncovalent lignin-peptide interactions, which is of significant interest in the chemical or biochemical conversion of renewable woody biomass to valuable chemical feedstocks. The lignin-anchored SAMs were prepared for the first time by click chemistry based on an azide-alkyne Huisgen cycloaddition: mixed SAMs are fabricated on gold thin film using a mixture of alkynyl and methyl thioalkyloligo(ethylene oxide) disulfides and then reacted with azidated milled wood lignins to furnish the functional SAMs anchoring lignins covalently. The resulting SAMs were characterized using infrared reflection-absorption, Raman, and X-ray photoelectron spectroscopies to confirm covalent immobilization of the lignins to the SAMs via triazole linkages and also to reveal that the SAM formation induces a helical conformation of the ethylene oxide chains. Further, SPR measurements of the noncovalent lignin-peptide interactions using lignin-binding peptides have demonstrated high reproducibility and durability of the prepared lignin-anchored sensor chips.
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Affiliation(s)
- Katsuhiro Isozaki
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takafumi Shimoaka
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
| | - Satoshi Oshiro
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
| | - Asako Yamaguchi
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
| | - Francesca Pincella
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- CREST,
Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | - Ryo Ueno
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takeshi Hasegawa
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
| | - Takashi Watanabe
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- CREST,
Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | - Hikaru Takaya
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masaharu Nakamura
- International
Research Center for Elements Science, Institute for
Chemical Research, Division of Environmental Chemistry, Institute for Chemical Research, and Research Institute
for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Kyoto, Japan
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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6
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Carvalho RR, Pujari SP, Gahtory D, Vrouwe EX, Albada B, Zuilhof H. Mild Photochemical Biofunctionalization of Glass Microchannels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8624-8631. [PMID: 28072547 DOI: 10.1021/acs.langmuir.6b03931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The ability to locally modify the inside of microfluidic channels with bioactive molecules is of ever-rising relevance. In this article, we show the direct photochemical coupling of a N-hydroxysuccinimide-terminated ω-alkene onto hydrogen-terminated silicon oxide, and its subsequent functionalization with a catalytically active DNAzyme. To achieve this local attachment of a DNAzyme, we prepared hydrogen-phenyl-terminated glass (H-Φ-glass) by the reaction of glass with H-SiPhCl2. The presence of a radical-stabilizing substituent on the Si atom (i.e., phenyl) enabled the covalent modification of bare glass substrates and of the inside of glass microchannels with a functional organic monolayer that allowed direct reaction with an amine-functionalized biomolecule. In this study, we directly attached an NHS-functionalized alkene to the modified glass surface using light with a wavelength of 328 nm, as evidenced by SCA, G-ATR, XPS, SEM, AFM and fluorescence microscopy. Using these NHS-based active esters on the surface, we performed a direct localized attachment of a horseradish peroxidase (HRP)-mimicking hemin/G-quadruplex (hGQ) DNAzyme complex inside a microfluidic channel. This wall-coated hGQ DNAzyme effectively catalyzed the in-flow oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) [ABTS] in the presence of hydrogen peroxide. This proof-of-concept of mild biofunctionalization will allow the facile preparation of modified microchannels for myriad biorelevant applications.
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Affiliation(s)
- Rui Rijo Carvalho
- Laboratory of Organic Chemistry, Wageningen University and Research , Stippeneng 4, 6708 WE, Wageningen, The Netherlands
- Micronit Microtechnologies B.V., Colosseum 15, 7521 PV, Enschede, The Netherlands
| | - Sidharam P Pujari
- Laboratory of Organic Chemistry, Wageningen University and Research , Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Digvijay Gahtory
- Laboratory of Organic Chemistry, Wageningen University and Research , Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Elwin X Vrouwe
- Micronit Microtechnologies B.V., Colosseum 15, 7521 PV, Enschede, The Netherlands
| | - Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University and Research , Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University and Research , Stippeneng 4, 6708 WE, Wageningen, The Netherlands
- School of Pharmaceutical Sciences and Technology, Tianjin University , 92 Weijin Road, Tianjin, P.R. China
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah, Saudi Arabia
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7
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Page Z, Narupai B, Pester CW, Bou Zerdan R, Sokolov A, Laitar DS, Mukhopadhyay S, Sprague S, McGrath AJ, Kramer JW, Trefonas P, Hawker CJ. Novel Strategy for Photopatterning Emissive Polymer Brushes for Organic Light Emitting Diode Applications. ACS CENTRAL SCIENCE 2017; 3:654-661. [PMID: 28691078 PMCID: PMC5492409 DOI: 10.1021/acscentsci.7b00165] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Indexed: 05/25/2023]
Abstract
A light-mediated methodology to grow patterned, emissive polymer brushes with micron feature resolution is reported and applied to organic light emitting diode (OLED) displays. Light is used for both initiator functionalization of indium tin oxide and subsequent atom transfer radical polymerization of methacrylate-based fluorescent and phosphorescent iridium monomers. The iridium centers play key roles in photocatalyzing and mediating polymer growth while also emitting light in the final OLED structure. The scope of the presented procedure enables the synthesis of a library of polymers with emissive colors spanning the visible spectrum where the dopant incorporation, position of brush growth, and brush thickness are readily controlled. The chain-ends of the polymer brushes remain intact, affording subsequent chain extension and formation of well-defined diblock architectures. This high level of structure and function control allows for the facile preparation of random ternary copolymers and red-green-blue arrays to yield white emission.
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Affiliation(s)
- Zachariah
A. Page
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
| | - Benjaporn Narupai
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
| | - Christian W. Pester
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
| | - Raghida Bou Zerdan
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
| | - Anatoliy Sokolov
- The
Dow Chemical Company, Midland, Michigan 48674, United States
| | - David S. Laitar
- The
Dow Chemical Company, Midland, Michigan 48674, United States
| | | | - Scott Sprague
- The
Dow Chemical Company, Midland, Michigan 48674, United States
| | - Alaina J. McGrath
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
| | - John W. Kramer
- The
Dow Chemical Company, Midland, Michigan 48674, United States
| | - Peter Trefonas
- The
Dow Electronic Materials Company, 455 Forest Street, Marlborough, Massachusetts 01752, United States
| | - Craig J. Hawker
- Materials Research Laboratory and Department of Chemistry and Biochemistry, University of California Santa Barbara, California 93106, United States
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8
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Yang Q, Li C, Cheng MX, Yang SD. Palladium-Catalyzed Migratory Insertion of Isocyanides for Synthesis of C-Phosphonoketenimines. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01253] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Qiang Yang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Chong Li
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Ming-Xing Cheng
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Shang-Dong Yang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, People’s Republic of China
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9
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Carvalho RR, Pujari SP, Lange SC, Sen R, Vrouwe EX, Zuilhof H. Local Light-Induced Modification of the Inside of Microfluidic Glass Chips. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2389-2398. [PMID: 26976049 DOI: 10.1021/acs.langmuir.5b04621] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The ability to locally functionalize the surface of glass allows for myriad biomedical and chemical applications. This would be the case if the surface functionalization can be induced using light with wavelengths for which standard glass is almost transparent. To this aim, we present the first example of a photochemical modification of hydrogen-terminated glass (H-glass) with terminal alkenes. Both flat glass surfaces and the inside of glass microchannels were modified with a well-defined, covalently attached organic monolayer using a range of wavelengths, including sub-band-gap 302 nm ultraviolet light. A detailed characterization thereof was conducted by measurements of the static water contact angle, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and scanning Auger microscopy (SAM). Germanium attenuated total reflection Fourier transform infrared (GATR-FTIR) indicates that the mechanism of the surface modification proceeds via an anti-Markovnikov substitution. Reacting H-glass with 10-trifluoro-acetamide-1-decene (TFAAD) followed by basic hydrolysis affords the corresponding primary amine-terminated monolayer, enabling additional functionalization of the substrate. Furthermore, we show the successful formation of a photopatterned amine layer by the specific attachment of fluorescent nanoparticles in very discrete regions. Finally, a microchannel was photochemically patterned with a functional linker allowing for surface-directed liquid flow. These results demonstrate that H-glass can be modified with a functional tailor-made organic monolayer, has highly tunable wetting properties, and displays significant potential for further applications.
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Affiliation(s)
- Rui Rijo Carvalho
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
- Micronit Microfluidics B.V., Colosseum 15, 7521 PV Enschede, The Netherlands
| | - Sidharam P Pujari
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Stefanie C Lange
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Rickdeb Sen
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Elwin Xander Vrouwe
- Micronit Microfluidics B.V., Colosseum 15, 7521 PV Enschede, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
- Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah, Saudi Arabia
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10
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Kosian M, Smulders MMJ, Zuilhof H. Structure and Long-Term Stability of Alkylphosphonic Acid Monolayers on SS316L Stainless Steel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1047-1057. [PMID: 26771302 DOI: 10.1021/acs.langmuir.5b04217] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Surface modification of stainless steel (SS316L) to improve surface properties or durability is an important avenue of research, as SS316L is widely used in industry and science. We studied, therefore, the formation and stability of a series of organic monolayers on SS316L under industrially relevant conditions. These included acidic (pH 3), basic (pH 11), neutral (Milli-Q water), and physiological conditions [10 mM phosphate-buffered saline (PBS)], as well as dry heating (120 °C). SS316L was modified with alkylphosphonic acids of chain length (CH2)n with n varying between 3 and 18. While alkylphosphonic acids of all chain lengths formed self-assembled monolayers with hydrophobic properties, only monolayers of chain lengths 12-18 formed ordered monolayers, as evidenced by static water contact angle (SCA), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and infrared reflection absorption spectroscopy (IRRAS). A long-term stability study revealed the excellent stability of monolayers with chain lengths 12-18 for up to 30 days in acid, neutral, and physiological solutions, and for up to 7 days under dry heating. Under strong basic conditions a partial breakdown of the monolayer was observed, especially for the shorter chain lengths. Finally, the effect of multivalent surface attachment on monolayer stability was explored by means of a series of divalent bisphosphonic acids.
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Affiliation(s)
- Medea Kosian
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Maarten M J Smulders
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
- Department of Chemical and Materials Engineering, King Abdulaziz University , 21589 Jeddah, Saudi Arabia
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11
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Bhairamadgi NS, Pujari SP, Trovela FG, Debrassi A, Khamis AA, Alonso JM, Al Zahrani AA, Wennekes T, Al-Turaif HA, van Rijn C, Alhamed YA, Zuilhof H. Hydrolytic and thermal stability of organic monolayers on various inorganic substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5829-5839. [PMID: 24825533 DOI: 10.1021/la500533f] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A comparative study is presented of the hydrolytic and thermal stability of 24 different kinds of monolayers on Si(111), Si(100), SiC, SiN, SiO2, CrN, ITO, PAO, Au, and stainless steel surfaces. These surfaces were modified utilizing appropriate organic compounds having a constant alkyl chain length (C18), but with different surface-reactive groups, such as 1-octadecene, 1-octadecyne, 1-octadecyltrichlorosilane, 1-octadecanethiol, 1-octadecylamine and 1-octadecylphosphonic acid. The hydrolytic stability of obtained monolayers was systematically investigated in triplicate in constantly flowing aqueous media at room temperature in acidic (pH 3), basic (pH 11), phosphate buffer saline (PBS) and deionized water (neutral conditions), for a period of 1 day, 7 days, and 30 days, yielding 1152 data points for the hydrolytic stability. The hydrolytic stability was monitored by static contact angle measurements and X-ray photoelectron spectroscopy (XPS). The covalently bound alkyne monolayers on Si(111), Si(100), and SiC were shown to be among the most stable monolayers under acidic and neutral conditions. Additionally, the thermal stability of 14 different monolayers was studied in vacuum using XPS at elevated temperatures (25-600 °C). Similar to the hydrolytic stability, the covalently bound both alkyne and alkene monolayers on Si(111), Si(100) and SiC started to degrade from temperatures above 260 °C, whereas on oxide surfaces (e.g., PAO) phosphonate monolayers even displayed thermal stability up to ∼500 °C.
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Affiliation(s)
- Nagendra S Bhairamadgi
- Laboratory of Organic Chemistry, Wageningen University and Research Center , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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12
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Pujari SP, Scheres L, Marcelis ATM, Zuilhof H. Covalent Surface Modification of Oxide Surfaces. Angew Chem Int Ed Engl 2014; 53:6322-56. [DOI: 10.1002/anie.201306709] [Citation(s) in RCA: 583] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 12/26/2022]
Affiliation(s)
- Sidharam P. Pujari
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
| | - Luc Scheres
- Surfix B.V. Dreijenplein 8, 6703 HB Wageningen (The Netherlands)
| | - Antonius T. M. Marcelis
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (The Netherlands)
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah (Saudi Arabia)
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13
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Pujari SP, Scheres L, Marcelis ATM, Zuilhof H. Kovalente Oberflächenmodifikationen von Oxiden. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201306709] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sidharam P. Pujari
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
| | | | - Antonius T. M. Marcelis
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, P.O. Box 26, 6703 HB Wageningen (Niederlande)
- Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah (Saudi‐Arabien)
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14
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Escorihuela J, Bañuls MJ, Grijalvo S, Eritja R, Puchades R, Maquieira Á. Direct Covalent Attachment of DNA Microarrays by Rapid Thiol–Ene “Click” Chemistry. Bioconjug Chem 2014; 25:618-27. [DOI: 10.1021/bc500033d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jorge Escorihuela
- Centro
de Reconocimiento Molecular y Desarrollo Tecnológico, Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 Valencia, Spain
| | - María-José Bañuls
- Centro
de Reconocimiento Molecular y Desarrollo Tecnológico, Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 Valencia, Spain
| | - Santiago Grijalvo
- Networking Center on Bioengineering, Biomaterials and Biomedicine (CIBER-BBN) and Institute for Advanced Chemistry of Catalonia (IQAC−CSIC), Chemical and Biomolecular Nanotechnology Department, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Ramón Eritja
- Networking Center on Bioengineering, Biomaterials and Biomedicine (CIBER-BBN) and Institute for Advanced Chemistry of Catalonia (IQAC−CSIC), Chemical and Biomolecular Nanotechnology Department, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Rosa Puchades
- Centro
de Reconocimiento Molecular y Desarrollo Tecnológico, Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 Valencia, Spain
| | - Ángel Maquieira
- Centro
de Reconocimiento Molecular y Desarrollo Tecnológico, Departamento
de Química, Universitat Politècnica de València, Camino
de Vera s/n, 46022 Valencia, Spain
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15
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Pujari SP, Li Y, Regeling R, Zuilhof H. Tribology and stability of organic monolayers on CrN: a comparison among silane, phosphonate, alkene, and alkyne chemistries. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10405-10415. [PMID: 23924242 DOI: 10.1021/la401981b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The fabrication of chemically and mechanically stable monolayers on the surfaces of various inorganic hard materials is crucial to the development of biomedical/electronic devices. In this Article, monolayers based on the reactivity of silane, phosphonate, 1-alkene, and 1-alkyne moieties were obtained on the hydroxyl-terminated chromium nitride surface. Their chemical stability and tribology were systematically investigated. The chemical stability of the modified CrN surfaces was tested in aqueous media at 60 °C at pH 3, 7, and 11 and monitored by static water contact angle measurements, X-ray photoelectron spectroscopy (XPS), ellipsometry, and Fourier transform infrared reflection absorption spectroscopy (FT-IRRAS). The tribological properties of the resulting organic monolayers with different end groups (fluorinated or nonfluorinated) were studied using atomic force microscopy (AFM). It was found that the fluorinated monolayers exhibit a dramatic reduction of adhesion and friction force as well as excellent wear resistance compared to those of nonfluorinated coatings and bare CrN substrates. The combination of remarkable chemical stability and superior tribological properties makes these fluorinated monolayers promising candidates for the development of robust high-performance devices.
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Affiliation(s)
- Sidharam P Pujari
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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16
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Pujari SP, Scheres L, van Lagen B, Zuilhof H. Organic monolayers from 1-alkynes covalently attached to chromium nitride: alkyl and fluoroalkyl termination. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10393-10404. [PMID: 23919532 DOI: 10.1021/la401978h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Strategies to modify chromium nitride (CrN) surfaces are important because of the increasing applications of these materials in various areas such as hybrid electronics, medical implants, diffusion barrier layers, corrosion inhibition, and wettability control. The present work presents the first surface immobilization of alkyl and perfluoro-alkyl (from C6 to C18) chains onto CrN substrates using appropriately functionalized 1-alkynes, yielding covalently bound, high-density organic monolayers with excellent hydrophobic properties and a high degree of short-range order. The obtained monolayers were characterized in detail by water contact angle, X-ray photoelectron spectroscopy (XPS), ellipsometry, and infrared reflection absorption spectroscopy (IRRAS).
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Affiliation(s)
- Sidharam P Pujari
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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17
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Guan B, Ciampi S, Luais E, James M, Reece PJ, Gooding JJ. Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:15444-15449. [PMID: 23078244 DOI: 10.1021/la303649u] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The ability to impart discrete surface chemistry to the inside and outside of mesoporous silicon is of great importance for a range of biomedical applications, from selective (bio)sensing to tissue-specific drug delivery. Here we present a generic strategy toward achieving depth-resolved functionalization of the external and internal porous surfaces by a simple change in the wavelength of the light being used to promote surface chemical reactions. UV-assisted hydrosilylation, limited by the penetration depth of UV light, is used to decorate the outside of the mesoporous structure with carboxylic acid molecules, and white light illumination triggers the attachment of dialkyne molecules to the inner porous matrix.
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Affiliation(s)
- Bin Guan
- School of Chemistry, University of New South Wales, Sydney, Australia
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18
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Li Y, Giesbers M, Gerth M, Zuilhof H. Generic top-functionalization of patterned antifouling zwitterionic polymers on indium tin oxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12509-12517. [PMID: 22888834 DOI: 10.1021/la3022563] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper presents a novel surface engineering approach that combines photochemical grafting and surface-initiated atom transfer radical polymerization (SI-ATRP) to attach zwitterionic polymer brushes onto indium tin oxide (ITO) substrates. The photochemically grafted hydroxyl-terminated organic layer serves as an excellent platform for initiator attachment, and the zwitterionic polymer generated via subsequent SI-ATRP exhibits very good antifouling properties. Patterned polymer coatings can be obtained when the surface with covalently attached initiator was subjected to photomasked UV-irradiation, in which the C-Br bond that is present in the initiator was broken upon exposure to UV light. A further, highly versatile top-functionalization of the zwitterionic polymer brush was achieved by a strain-promoted alkyne-azide cycloaddition, without compromising its antifouling property. The attached bioligand (here: biotin) enables the specific immobilization of target proteins in a spatially confined fashion, pointing to future applications of this approach in the design of micropatterned sensing platforms on ITO substrates.
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Affiliation(s)
- Yan Li
- Laboratory of Organic Chemistry, Wageningen University, Wageningen, The Netherlands
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19
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Manova RK, Pujari SP, Weijers CAGM, Zuilhof H, van Beek TA. Copper-free click biofunctionalization of silicon nitride surfaces via strain-promoted alkyne-azide cycloaddition reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8651-63. [PMID: 22642374 DOI: 10.1021/la300921e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Cu-free "click" chemistry is explored on silicon nitride (Si(3)N(4)) surfaces as an effective way for oriented immobilization of biomolecules. An ω-unsaturated ester was grafted onto Si(3)N(4) using UV irradiation. Hydrolysis followed by carbodiimide-mediated activation yielded surface-bound active succinimidyl and pentafluorophenyl ester groups. These reactive surfaces were employed for the attachment of bicyclononyne with an amine spacer, which subsequently enabled room temperature strain-promoted azide-alkyne cycloaddition (SPAAC). This stepwise approach was characterized by means of static water contact angle, X-ray photoelectron spectroscopy, and fluorescence microscopy. The surface-bound SPAAC reaction was studied with both a fluorine-tagged azide and an azide-linked lactose, yielding hydrophobic and bioactive surfaces for which the presence of trace amounts of Cu ions would have been problematic. Additionally, patterning of the Si(3)N(4) surface using this metal-free click reaction with a fluorescent azide is shown. These results demonstrate the ability of the SPAAC as a generic tool for anchoring complex molecules onto a surface under extremely mild, namely ambient and metal-free, conditions in a clean and relatively fast manner.
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Affiliation(s)
- Radostina K Manova
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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