Residential College | false |
Status | 已發表Published |
"Click" Cucurbit[7]uril Hosts on Self-Assembled Monolayers: Quantitative Supramolecular Complexation with Ferrocene Guests | |
Chen, Kennedy S.1; Qi, Lin1; Chen, Jia2; Wang, Ruibing2; Yu, Hua Zhong1 | |
2022-01-27 | |
Source Publication | Journal of Physical Chemistry C |
ISSN | 1932-7447 |
Volume | 126Issue:3Pages:1661-1671 |
Abstract | The ultrahigh stability of the ferrocene@cucurbit[7]uril (Fc@CB[7]) host-guest inclusion complex enables its promising application as a novel immobilization/conjugation motif for constructing biosensors and molecular devices. However, its supramolecular complexation on surface has been rarely studied, which is partially due to the limited success of current CB[7] immobilization strategies (suffering from either poor stability or inconvenient and time-consuming procedures). In this work, we have successfully tethered alkyne-functionalized CB[7] (-O-CB[7]) on azide-terminated self-assembled monolayers (SAMs) on gold via the copper(I)-catalyzed azide-alkyne cycloaddition reaction with high efficiency. With this new approach, highly stable and uniform CB[7]-functionalized SAMs were obtained, which enabled us to gain insights into the recognition properties of CB[7] toward various Fc derivatives on the surface. In particular, the derived complexation thermodynamic (e.g., for FcMeOH, Kf = (1.6 ± 0.3) × 107 M-1) and kinetic (ka = (2.6 ± 0.4) × 103 M-1 s-1, kd = (5.1 ± 0.3) × 10-5 s-1) data indicate the strong interfacial host-guest binding of surface-bound CB[7] toward both cationic and neutral ferrocene derivatives. Remarkably, a comparable binding stability was observed for the anionic ferrocene derivative with an increased distance between the ferrocene core and negatively charged substituent, which is significant for immobilizing/conjugating negatively charged biological macromolecules (e.g., DNA probes). |
DOI | 10.1021/acs.jpcc.1c09781 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
WOS ID | WOS:000745244200001 |
Scopus ID | 2-s2.0-85123943409 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | DEPARTMENT OF PHARMACEUTICAL SCIENCES Institute of Chinese Medical Sciences THE STATE KEY LABORATORY OF QUALITY RESEARCH IN CHINESE MEDICINE (UNIVERSITY OF MACAU) |
Corresponding Author | Wang, Ruibing; Yu, Hua Zhong |
Affiliation | 1.Department of Chemistry, Simon Fraser University, Burnaby, V5A 1S6, Canada 2.State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macao |
Corresponding Author Affilication | Institute of Chinese Medical Sciences |
Recommended Citation GB/T 7714 | Chen, Kennedy S.,Qi, Lin,Chen, Jia,et al. "Click" Cucurbit[7]uril Hosts on Self-Assembled Monolayers: Quantitative Supramolecular Complexation with Ferrocene Guests[J]. Journal of Physical Chemistry C, 2022, 126(3), 1661-1671. |
APA | Chen, Kennedy S.., Qi, Lin., Chen, Jia., Wang, Ruibing., & Yu, Hua Zhong (2022). "Click" Cucurbit[7]uril Hosts on Self-Assembled Monolayers: Quantitative Supramolecular Complexation with Ferrocene Guests. Journal of Physical Chemistry C, 126(3), 1661-1671. |
MLA | Chen, Kennedy S.,et al.""Click" Cucurbit[7]uril Hosts on Self-Assembled Monolayers: Quantitative Supramolecular Complexation with Ferrocene Guests".Journal of Physical Chemistry C 126.3(2022):1661-1671. |
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