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.
复制标题

DOI:
10.1021/acsnano.3c06601
复制
发表时间:
2023-11-14
期刊:
影响因子:
17.1
通讯作者:
Peveler, William J.
Peveler, William J.
中科院分区:
材料科学1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.

文献摘要

参考文献

相似文献

葫芦脲(CB),桶形大环分子,能够在其天然状态下,通过其羰基环门户在纳米材料表面自组装。然而,对称的双门户结构通常导致聚集的纳米材料。我们表明,荧光量子点(QD)与CB连接的聚集体可以被打破,保留CB吸附在其表面,通过在CB腔中的客人列入。同时,QD表面被客体上的功能性尾部修饰,因此高亲和力的主体-客体结合(logKa > 9)使得能够在水溶液中对纳米颗粒进行非共价的点击样修饰。我们在几种功能性QD缀合物作为蛋白质标记物中实现了优异的修饰效率。包含较弱结合的客体(logKa = 4-6)使得随后能够用较强的结合剂置换,实现模块化可切换的表面化学。我们的一般“钩和眼睛”的方法,在纳米材料界面的主客体化学将导致不同的路线,纳米架构与丰富的功能,治疗诊断学和光子学在水溶液系统。
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.
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
DOI: 10.1021/la062217y
发表时间: 2006-12-19
期刊: LANGMUIR
影响因子: 3.9
作者:
Algar, W. Russ;Krull, Ulrich J.
通讯作者: Krull, Ulrich J.
DOI: 10.1038/s41565-021-00949-6
发表时间: 2021-09-02
影响因子: 38.3
作者:
Huang, Junyang;Foldes, Tamas;Sokolowski, Kamil
通讯作者: Sokolowski, Kamil
DOI: 10.1002/anie.201008189
发表时间: 2011-01-01
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.
DOI: 10.1021/acsnano.9b07569
发表时间: 2020-02-01
期刊: ACS NANO
影响因子: 17.1
作者:
Cherkasov, Vladimir R.;Mochalova, Elizaveta N.;Nikitin, Maxim P.
通讯作者: Nikitin, Maxim P.