@article{cd73cf89731741e994d20e5f0fe9ee52,
title = "Surface molecular tailoring using pH-switchable supramolecular dendron-ligand assemblies",
abstract = "The rational design of materials with tailored properties is of paramount importance for a wide variety of biological, medical, electronic and optical applications. Here we report molecular level control over the spatial distribution of functional groups on surfaces utilizing self-Assembled monolayers (SAMs) of pH-switchable surface-Appended pseudorotaxanes. The supramolecular systems were constructed from a poly(aryl ether) dendron-containing a dibenzo[24]crown-8 (DB24C8) macrocycle and a thiol ligand-containing a dibenzylammonium recognition site and a fluorine end group. The dendron establishes the space (dendritic effect) that each pseudorotaxane occupies on the SAM. Following SAM formation, the dendron is released from the surface by switching off the noncovalent interactions upon pH stimulation, generating surface materials with tailored physical and chemical properties.",
keywords = "binary self-Assembled monolayers, functional surfaces, pseudorotaxanes, self-Assembly, supramolecular systems",
author = "Parvez Iqbal and Rawson, {Frankie J.} and Ho, {Watson K.W.} and Lee, {Siu Fung} and Leung, {Ken Cham Fai} and Xingyong Wang and Akash Beri and Preece, {Jon A.} and Jing Ma and Mendes, {Paula M.}",
note = "The authors acknowledge financial support of this work by the Leverhulme Trust (F/00094/AW, F/00094/BD and ECF/2013-603), Royal Society (2009/R3), Wellcome Trust (WT091285MA), EPSRC (EP/K027263/1), the European Commission under the FP7-NMP project Hysens (263091), the Research Grants Council of Hong Kong (201412), and the University Grants Committee of Hong Kong SAR (AoE/P-03/08). Also, we acknowledge the University of Leeds EPSRC Nanoscience and Nanotechnology Facility (LENNF) for access to the XPS. This research was in part supported through Birmingham Science City: Innovative Uses for Advanced Materials in the Modern World (West Midlands Centre for Advanced Materials Project 2), supported by Advantage West Midlands (AWM) and part funded by the European Regional Development Fund (ERDF). This work was also supported by the National Basic Research Program (2011CB808604) and the National Natural Science Foundation of China (21273102). We are grateful to the High Performance Computing Centre of Nanjing University for providing the IBM Blade cluster system. ",
year = "2014",
month = may,
day = "14",
doi = "10.1021/am501613c",
language = "English",
volume = "6",
pages = "6264--6274",
journal = "ACS Applied Materials and Interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "9",
}