1
|
Tombrink A, Nagorny S, Batsyts S, Namyslo JC, Lederle F, Hübner EG, Adams J, Schmidt A. Highly Sensitive Switchable Sensors for Hydroxide on Glass Surfaces Based on Isoquinolinium-Quinolinium-substituted Acetylenes. Chemistry 2024; 30:e202304034. [PMID: 38231534 DOI: 10.1002/chem.202304034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/18/2024]
Abstract
Bi-substituted acetylenes with a quinolinium and an isoquinolinium substituent are described, which reversibly form intensely colored adducts with O-nucleophiles and thus enable the detection of >0,5 ppm hydroxide on the surfaces of various glasses. Acids reconstitute the colorless bi-substituted acetylenes. The quinolinium and isoquinolinium rings are bound via their 2-, 3-, 4- and 1-, 3-, 4-positions to the triple bond, respectively. The choice of substitution sites of the hetarenium rings enables the design of mixed conjugated/cross-conjugated π-electron systems. Depending on the combination of binding sites, the frontier orbital profile, the triple bond polarization, the fluorescence behaviour, and the sensitivity to hydroxide differs.
Collapse
Affiliation(s)
- Alexander Tombrink
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
| | - Sven Nagorny
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
| | - Sviatoslav Batsyts
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
| | - Jan C Namyslo
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
| | - Felix Lederle
- Fraunhofer Heinrich Hertz Institute HHI, Fiber Optical Sensor Systems, Am Stollen 19 H, D-38640, Goslar, Germany
| | - Eike G Hübner
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
- Fraunhofer Heinrich Hertz Institute HHI, Fiber Optical Sensor Systems, Am Stollen 19 H, D-38640, Goslar, Germany
| | - Jörg Adams
- Clausthal University of Technology, Institute of Physical Chemistry, Arnold-Sommerfeld-Straße 4, D-38678, Clausthal-Zellerfeld, Germany
| | - Andreas Schmidt
- Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstraße 6, D-38678, Clausthal-Zellerfeld, Germany
| |
Collapse
|
2
|
Dong J, Huan Y, Huang B, Yi J, Liu YH, Sun BA, Wang WH, Bai HY. Unusually thick shear-softening surface of micrometer-size metallic glasses. ACTA ACUST UNITED AC 2021; 2:100106. [PMID: 34557757 PMCID: PMC8454631 DOI: 10.1016/j.xinn.2021.100106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/12/2021] [Indexed: 11/29/2022]
Abstract
The surface of glass is crucial for understanding many fundamental processes in glassy solids. A common notion is that a glass surface is a thin layer with liquid-like atomic dynamics and a thickness of a few tens of nanometers. Here, we measured the shear modulus at the surface of both millimeter-size and micrometer-size metallic glasses (MGs) through high-sensitivity torsion techniques. We found a pronounced shear-modulus softening at the surface of MGs. Compared with the bulk, the maximum decrease in the surface shear modulus (G) for the micro-scale MGs reaches ~27%, which is close to the decrease in the G upon glass transition, yet it still behaves solid-like. Strikingly, the surface thickness estimated from the shear-modulus softening is at least 400 nm, which is approximately one order of magnitude larger than that revealed from the glass dynamics. The unusually thick surface is also confirmed by measurements using X-ray nano-computed tomography, and this may account for the brittle-to-ductile transition of the MGs with size reductions. The unique and unusual properties at the surface of the micrometer-size MGs are physically related to the negative pressure effect during the thermoplastic formation process, which can dramatically reduce the density of the proximate surface region in the supercooled liquid state. The shear modulus and thickness of metallic glass (MG) surface is determined through torsion testing on micrometer-size wires The surface region of MG wires has a significant shear-modulus softening close to the supercooled liquid, yet still behaves solid-like The thickness of the soft surface of MG wires is at least 400 nm, which is about one order of magnitude larger than those revealed from surface dynamics The unusually thick surface accounts for the brittle-to-ductile transition of the MGs with size reduction
Collapse
Affiliation(s)
- J Dong
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Y Huan
- State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
| | - B Huang
- Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - J Yi
- Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Y H Liu
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - B A Sun
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - W H Wang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - H Y Bai
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| |
Collapse
|
3
|
Okhrimenko DV, Nielsen CF, Lakshtanov LZ, Dalby KN, Johansson DB, Solvang M, Deubener J, Stipp SLS. Surface Reactivity and Dissolution Properties of Alumina-Silica Glasses and Fibers. ACS Appl Mater Interfaces 2020; 12:36740-36754. [PMID: 32663394 DOI: 10.1021/acsami.0c09362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The ability of bulk glass and fibers to react in aqueous solution, with organic polymers and coupling agents, depends on the surface charge, reactivity, and adsorption properties of the glass surface, i.e. the character and density of surface -OH groups, whereas glass and fiber chemical stability and biosolubility depend on the resistance to dissolution. If glass dissolution products are accumulated in a media, they can change the surface properties by specific adsorption. We determined the -OH surface concentration, reactivity, adsorption, and dissolution properties of aluminosilicate glasses containing various modifiers and compared the results with the behavior of complex mineral wool fibers. Using proton consumption and element release from batch surface titration experiments, over the range 5 < pH < 10, surface -OH adsorption properties were modeled with the FITEQL program. During titration, network modifiers in the glass subsurface are preferentially replaced by protons, resulting in cation accumulation in the solution and formation of a leached layer enriched with Si on the solid. The behavior of Al was different. At 5 < pH < 9, only very small amounts of Al were found in the leachates, which can be explained by almost complete Al adsorption as stable surface complexes, i.e. >XOAl(OH)2 (where X = Si or Al and > represents the surface). At pH > 9, divalent cations adsorbed specifically, as >XOMe+ complexes (Me = Ca or Mg). This deeper understanding of the surface behavior of glasses and fibers is important for the design of composite materials, for applications in biology and medicine and in materials production in general, as well as for understanding natural processes, such as global uptake estimates of CO2 during rock weathering.
Collapse
Affiliation(s)
| | - C F Nielsen
- ROCKWOOL International A/S, 2640 Hedehusene, Denmark
| | - L Z Lakshtanov
- Institute of Experimental Mineralogy RAS, 142432 Chernogolovka, Russia
| | - K N Dalby
- Haldor Topsoe A/S, Haldor Topsøes Alle 1, 2800 Kongens Lyngby, Denmark
| | - D B Johansson
- ROCKWOOL International A/S, 2640 Hedehusene, Denmark
| | - M Solvang
- ROCKWOOL International A/S, 2640 Hedehusene, Denmark
| | - J Deubener
- Institute of Non-Metallic Materials, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
| | - S L S Stipp
- Department of Physics, Danish Technical University, 2800 Kongens Lyngby, Denmark
| |
Collapse
|
4
|
Baskaran N, Chang YC, Chang CH, Hung SK, Kao CT, Wei Y. Quantify the Protein-Protein Interaction Effects on Adsorption Related Lubricating Behaviors of α-Amylase on a Glass Surface. Polymers (Basel) 2020; 12:E1658. [PMID: 32722491 PMCID: PMC7463787 DOI: 10.3390/polym12081658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/18/2020] [Accepted: 07/22/2020] [Indexed: 11/16/2022] Open
Abstract
Dental ceramic material is one of the widely preferred restorative materials to mimic the natural tooth enamel surface. However, it has continuously been degraded because of low wear resistance during mastication in the oral cavity. The friction involved was reduced by introducing the lubricant saliva protein layers to improve the wear resistance of the dental materials. However, little is understood regarding how the protein-protein interactions (PPI) influence the adsorbed-state structures and lubricating behaviors of saliva proteins on the ceramic material surface. The objective of this study is to quantify the influences of PPI effects on the structural changes and corresponding oral lubrications of adsorbed α-amylase, one of the abundant proteins in the saliva, on the dental ceramic material with glass as a model surface. α-Amylase was first adsorbed to glass surface under varying protein solution concentrations to saturate the surface to vary the PPI effects over a wide range. The areal density of the adsorbed protein was measured as an indicator of the level of PPI effects within the layer, and these values were then correlated with the measurements of the adsorbed protein's secondary structure and corresponding friction coefficient. The decreased friction coefficient value was an indicator of the lubricated surfaces with higher wear resistance. Our results indicate that PPI effects help stabilize the structure of α-amylase adsorbed on glass, and the correlation observed between the friction coefficient and the conformational state of adsorbed α-amylase was apparent. This study thus provides new molecular-level insights into how PPI influences the structure and lubricating behaviors of adsorbed protein, which is critical for the innovations of dental ceramic material designs with improved wear resistance.
Collapse
Affiliation(s)
| | | | | | | | | | - Yang Wei
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Section 3, Zhongxiao East Road, Taipei 10608, Taiwan; (N.B.); (Y.-C.C.); (C.-H.C.); (S.-K.H.); (C.-T.K.)
| |
Collapse
|
5
|
Kasahara K, Waku T, Wilson PW, Tonooka T, Hagiwara Y. The Inhibition of Icing and Frosting on Glass Surfaces by the Coating of Polyethylene Glycol and Polypeptide Mimicking Antifreeze Protein. Biomolecules 2020; 10:E259. [PMID: 32050479 DOI: 10.3390/biom10020259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/19/2020] [Accepted: 02/06/2020] [Indexed: 11/30/2022] Open
Abstract
The development of anti-icing, anti-frosting transparent plates is important for many reasons, such as poor visibility through the ice-covered windshields of vehicles. We have fabricated new glass surfaces coated with polypeptides which mimic a part of winter flounder antifreeze protein. We adopted glutaraldehyde and polyethylene glycol as linkers between these polypeptides and silane coupling agents applied to the glass surfaces. We have measured the contact angle, the temperature of water droplets on the cooling surfaces, and the frost weight. In addition, we have conducted surface roughness observation and surface elemental analysis. It was found that peaks in the height profile, obtained with the atomic force microscope for the polypeptide-coated surface with polyethylene glycol, were much higher than those for the surface without the polypeptide. This shows the adhesion of many polypeptide aggregates to the polyethylene glycol locally. The average supercooling temperature of the droplet for the polypeptide-coated surface with the polyethylene glycol was lower than for the polypeptide-coated surface with glutaraldehyde and the polyethylene-glycol-coated surface without the polypeptide. In addition, the average weight of frost cover on the specimen was lowest for the polypeptide-coated surface with the polyethylene glycol. These results argue for the effects of combined polyethylene glycol and polypeptide aggregates on the locations of ice nuclei and condensation droplets. Thus, this polypeptide-coating with the polyethylene glycol is a potential contender to improve the anti-icing and anti-frosting of glasses.
Collapse
|
6
|
Abstract
Effective protection from environmental degradation relies on the integrity of oxide as diffusion barriers. Ideally, the passivation layer can repair its own breaches quickly under deformation. While studies suggest that the native aluminum oxide may manifest such properties, it has yet to be experimentally proven because direct observations of the air-environmental deformation of aluminum oxide and its initial formation at room temperature are challenging. Here, we report in situ experiments to stretch pure aluminum nanotips under O2 gas environments in a transmission electron microscope (TEM). We discovered that aluminum oxide indeed deforms like liquid and can match the deformation of Al without any cracks/spallation at moderate strain rate. At higher strain rate, we exposed fresh metal surface, and visualized the self-healing process of aluminum oxide at atomic resolution. Unlike traditional thin-film growth or nanoglass consolidation processes, we observe seamless coalescence of new oxide islands without forming any glass-glass interface or surface grooves, indicating greatly accelerated glass kinetics at the surface compared to the bulk.
Collapse
Affiliation(s)
- Yang Yang
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Akihiro Kushima
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
- Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center , University of Central Florida , Orlando , Florida 32816 , United States
| | - Weizhong Han
- Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Huolin Xin
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Ju Li
- Department of Nuclear Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| |
Collapse
|
7
|
Luo J, Wang J, Bitzek E, Huang JY, Zheng H, Tong L, Yang Q, Li J, Mao SX. Size-Dependent Brittle-to-Ductile Transition in Silica Glass Nanofibers. Nano Lett 2016; 16:105-113. [PMID: 26569137 DOI: 10.1021/acs.nanolett.5b03070] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Silica (SiO2) glass, an essential material in human civilization, possesses excellent formability near its glass-transition temperature (Tg > 1100 °C). However, bulk SiO2 glass is very brittle at room temperature. Here we show a surprising brittle-to-ductile transition of SiO2 glass nanofibers at room temperature as its diameter reduces below 18 nm, accompanied by ultrahigh fracture strength. Large tensile plastic elongation up to 18% can be achieved at low strain rate. The unexpected ductility is due to a free surface affected zone in the nanofibers, with enhanced ionic mobility compared to the bulk that improves ductility by producing more bond-switching events per irreversible bond loss under tensile stress. Our discovery is fundamentally important for understanding the damage tolerance of small-scale amorphous structures.
Collapse
Affiliation(s)
- Junhang Luo
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh , Pittsburgh, Pennsylvania 15261, United States
| | - Jiangwei Wang
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh , Pittsburgh, Pennsylvania 15261, United States
| | - Erik Bitzek
- Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Materials Science and Engineering, Institute I, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) , 91058 Erlangen, Germany
| | | | - He Zheng
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh , Pittsburgh, Pennsylvania 15261, United States
| | - Limin Tong
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University , Hangzhou 310027, China
| | - Qing Yang
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University , Hangzhou 310027, China
| | - Ju Li
- Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Scott X Mao
- Department of Mechanical Engineering & Materials Science, University of Pittsburgh , Pittsburgh, Pennsylvania 15261, United States
| |
Collapse
|