Supramolecular Click Chemistry for Surface Modification of Quantum Dots Mediated by Cucurbit[7]uril.
Supramolecular Click Chemistry for Surface Modification of Quantum Dots Mediated by Cucurbit[7]uril.
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DOI:
10.1021/acsnano.3c06601
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发表时间:
2023-11-14
期刊:
影响因子:
17.1
通讯作者:
Peveler, William J.
中科院分区:
文献类型:
--
作者:
McGuire, Katie;He, Suhang;Gracie, Jennifer;Bryson, Charlotte;Zheng, Dazhong;Clark, Alasdair W.;Koehnke, Jesko;France, David J.;Nau, Werner M.;Lee, Tung-Chun;Peveler, William J.
Cucurbiturils (CBs), barrel-shaped macrocyclic molecules, are capable of self-assembling at the surface of nanomaterials in their native state, via their carbonyl-ringed portals. However, the symmetrical two-portal structure typically leads to aggregated nanomaterials. We demonstrate that fluorescent quantum dot (QD) aggregates linked with CBs can be broken-up, retaining CBs adsorbed at their surface, via inclusion of guests in the CB cavity. Simultaneously, the QD surface is modified by a functional tail on the guest, thus the high affinity host–guest binding (logKa > 9) enables a non-covalent, click-like modification of the nanoparticles in aqueous solution. We achieved excellent modification efficiency in several functional QD conjugates as protein labels. Inclusion of weaker-binding guests (logKa = 4–6) enables subsequent displacement with stronger binders, realising modular switchable surface chemistries. Our general “hook-and-eye” approach to host–guest chemistry at nanomaterial interfaces will lead to divergent routes for nano-architectures with rich functionalities for theranostics and photonics in aqueous systems.
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DOI:
10.1002/chem.202101042
发表时间:
2021-07-07
期刊:
Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子:
--
作者:
Diez-Castellnou M;Suo R;Marro N;Matthew SAL;Kay ER
通讯作者:
Kay ER
影响因子:
3.9
作者:
Algar, W. Russ;Krull, Ulrich J.
通讯作者:
Krull, Ulrich J.
影响因子:
38.3
作者:
Huang, Junyang;Foldes, Tamas;Sokolowski, Kamil
通讯作者:
Sokolowski, Kamil
影响因子:
16.6
作者:
de la Rica, Roberto;Fratila, Raluca M.;Velders, Aldrik H.
通讯作者:
Velders, Aldrik H.
影响因子:
17.1
作者:
Cherkasov, Vladimir R.;Mochalova, Elizaveta N.;Nikitin, Maxim P.
通讯作者:
Nikitin, Maxim P.