Unexpected hydrophobicity on self-assembled monolayers terminated with two hydrophilic hydroxyl groups
Source abstract
Abstract
Current major approaches to access surface hydrophobicity include directly introducing hydrophobic nonpolar groups/molecules onto the surface or elaborately fabricating surface roughness. Here, for the first time, molecular dynamics simulations show an unexpected hydrophobicity with a contact angle of 82° on a flexible self-assembled monolayer terminated only with two hydrophilic OH groups ((OH)2-SAM). This hydrophobicity, verified by a water slip phenomenon characterizing the friction on the (OH)2-SAM surface, is attributed to the formation of a hexagonal-ice-like H-bonding structure in the OH matrix of (OH)2-SAM, which sharply reduces the hydrogen bonds between the surface and the water molecules above. The unique simple interface presented here offers a significant molecular-level platform for examining the bio-interfacial interactions ranging from biomolecule binding to cell adhesion.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Molecular Junctions and Nanostructures · Polymer Surface Interaction Studies · Spectroscopy and Quantum Chemical Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Physics Science and Technology, Yangzhou University, Jiangsu 225009, China
Zhangjiang Lab, Interdisplinary Research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Key Laboratory of Polar Materials and Devices Ministry of Education, School of Physics and Electrical Science, East China Normal University, Shanghai 200241, China
Funding
National Natural Science Foundation of China · Science and Technology Support Program of Jiangsu Province · National Natural Science Foundation of China-Guangdong Joint Fund
References (44)
Show source-provided references
1. Su · J. Am. Chem. Soc. · 2016 · 138 · 172710.1021/jacs.5b12728 ↗
2. Xin · Chem. Soc. Rev. · 2010 · 39 · 76910.1039/B913622C ↗
3. Kanduc · Proc. Natl. Acad. Sci. U. S. A. · 2015 · 112 · 1233810.1073/pnas.1504919112 ↗
4. Shenogina · Phys. Rev. Lett. · 2009 · 102 · 15610110.1103/PhysRevLett.102.156101 ↗
5. Yu · Proc. Natl. Acad. Sci. U. S. A. · 2013 · 110 · 1568010.1073/pnas.1315015110 ↗
6. Zhu · Proc. Natl. Acad. Sci. U. S. A. · 2016 · 113 · 1294610.1073/pnas.1616138113 ↗
7. Wang · Sci. Rep. · 2012 · 2 · 35810.1038/srep00358 ↗
8. Mayrhofer · J. Am. Chem. Soc. · 2016 · 138 · 401810.1021/jacs.5b04073 ↗
9. Liu · Science · 2014 · 346 · 109610.1126/science.1254787 ↗
10. Li · J. Am. Chem. Soc. · 2006 · 128 · 1243910.1021/ja057944e ↗
11. Kwon · Proc. Natl. Acad. Sci. U. S. A. · 2010 · 107 · 1710110.1073/pnas.1011569107 ↗
12. Genzer · Science · 2000 · 290 · 213010.1126/science.290.5499.2130 ↗
13. Verho · Proc. Natl. Acad. Sci. U. S. A. · 2012 · 109 · 1021010.1073/pnas.1204328109 ↗
14. Koishi · Proc. Natl. Acad. Sci. U. S. A. · 2009 · 106 · 843510.1073/pnas.0902027106 ↗
15. Quéré · Annu. Rev. Mater. Res. · 2008 · 38 · 7110.1146/annurev.matsci.38.060407.132434 ↗
16. Guo · Phys. Rev. Lett. · 2015 · 115 · 18610110.1103/PhysRevLett.115.186101 ↗
17. Wang · Phys. Rev. Lett. · 2009 · 103 · 13780110.1103/PhysRevLett.103.137801 ↗
18. Abraham · SoftwareX · 2015 · 1 · 1910.1016/j.softx.2015.06.001 ↗
19. Jorgensen · J. Am. Chem. Soc. · 1996 · 118 · 1122510.1021/ja9621760 ↗
20. Berendsen · J. Phys. Chem. · 1987 · 91 · 626910.1021/j100308a038 ↗
21. Essmann · J. Chem. Phys. · 1995 · 103 · 857710.1063/1.470117 ↗
22. Wang · J. Phys. Chem. C · 2015 · 119 · 1167910.1021/acs.jpcc.5b02024 ↗
23. Muller · ChemPhysChem · 2009 · 10 · 230510.1002/cphc.200900156 ↗
24. Restrepo · Tribol. Int. · 2019 · 137 · 42010.1016/j.triboint.2019.05.008 ↗
25. Vogler · Adv. Colloid Interface Sci. · 1998 · 74 · 6910.1016/S0001-8686(97)00040-7 ↗
26. Guo · J. Adhes. Sci. Technol. · 2008 · 22 · 39510.1163/156856108X304832 ↗
27. Shultz · Proc. Natl. Acad. Sci. U. S. A. · 2015 · 112 · E609610.1073/pnas.1513173112 ↗
28. Ball · Chem. Rev. · 2008 · 108 · 7410.1021/cr068037a ↗
29. James · Soft Matter · 2011 · 7 · 530910.1039/c1sm05096f ↗
30. Wang · Sci. Rep. · 2013 · 3 · 350510.1038/srep03505 ↗
31. Huang · Phys. Rev. Lett. · 2008 · 101 · 22610110.1103/PhysRevLett.101.226101 ↗
32. Love · Chem. Rev. · 2005 · 105 · 110310.1021/cr0300789 ↗
33. Haensch · Chem. Soc. Rev. · 2010 · 39 · 232310.1039/b920491a ↗
34. Liu · Innovation · 2021 · 2 · 100076
35. Yang · Innovation · 2020 · 1 · 100016
36. Cong · Innovation · 2020 · 1 · 100051
37. Bain · Science · 1988 · 240 · 6210.1126/science.240.4848.62 ↗
38. Pulsipher · Adv. Mater. · 2009 · 21 · 308210.1002/adma.200802503 ↗
39. Robertus · Chem. Soc. Rev. · 2010 · 39 · 35410.1039/B906608J ↗
40. Xi · Proc. Natl. Acad. Sci. U. S. A. · 2017 · 114 · 1334510.1073/pnas.1700092114 ↗
41. Lopez · J. Am. Chem. Soc. · 1993 · 115 · 587710.1021/ja00066a087 ↗
42. Prime · Science · 1991 · 252 · 116410.1126/science.252.5009.1164 ↗
43. Arima · Biomaterials · 2007 · 28 · 307410.1016/j.biomaterials.2007.03.013 ↗
44. Lahann · Science · 2003 · 299 · 37110.1126/science.1078933 ↗