化工学报 ›› 2023, Vol. 74 ›› Issue (1): 397-407.DOI: 10.11949/0438-1157.20221055
收稿日期:
2022-07-27
修回日期:
2022-11-28
出版日期:
2023-01-05
发布日期:
2023-03-20
通讯作者:
马骧
作者简介:
曲国娟(1996—),女,博士研究生,1414539714@qq.com
基金资助:
Guojuan QU1(), Tao JIANG2, Tao LIU1, Xiang MA2()
Received:
2022-07-27
Revised:
2022-11-28
Online:
2023-01-05
Published:
2023-03-20
Contact:
Xiang MA
摘要:
金纳米团簇(金簇)凭借其丰富的光学性能和独特的纳米结构在催化、生物成像、传感、分析检测、药物传送、显示和照明等领域脱颖而出。然而,较低的量子产率和单一的发光波段严重阻碍了金簇的发展前景,制备可调谐、高量子产率、长寿命的金簇已成为目前该领域的研究重点。主客体包结、嵌入聚合物基质以及氢键、静电作用力等超分子策略已被广泛用于调控金簇的发光行为,有效地提高金簇发光量子产率。鉴于此,系统阐述了超分子策略调控金簇发光行为的机理,总结了近年来基于超分子策略构建及调控多功能金簇发光行为的研究进展,并展望了金簇发光领域面临的机遇与挑战。
中图分类号:
曲国娟, 江涛, 刘涛, 马骧. 超分子策略调控金纳米团簇的发光行为[J]. 化工学报, 2023, 74(1): 397-407.
Guojuan QU, Tao JIANG, Tao LIU, Xiang MA. Modulating luminescent behaviors of Au nanoclusters via supramolecular strategies[J]. CIESC Journal, 2023, 74(1): 397-407.
图2 (a) AuNCs@β-CD的合成过程及其负载在TiO2 NPs表面增强光催化活性,提高对有机污染物的降解速率[62]; (b) β-CD@AuNCs的合成过程及其对多巴胺和胆固醇的检测[63-64]; (c) 近红外β-CD@AuNCs的合成过程[65]; (d) β-CD作为配体合成近红外二区 (NIR-Ⅱ) 的金簇并用于追踪、标记蛋白,实现靶向肿瘤可视化过程[66]
Fig.2 (a) Synthesis of AuNCs@β-CD and loading on the surface of TiO2 NPs to enhance photocatalytic activity and improve the degradation rate of organic pollutants [62]; (b) Synthesis process of β-CD@AuNCs and its detections of dopamine and cholesterol [63-64]; (c) Synthesis process of near-infrared β-CD@AuNCs[65]; (d) Bright near-infrared second region (NIR-Ⅱ) AuNCs synthesized through β-CD as ligand and used to track labeled proteins to realize targeted tumor visualization[66]
图3 (a) 基于超分子组装策略构建发光纳米开关器,调控CC/DTT-AuNCs发光[75]; (b) 聚集诱导分子金簇荧光-磷光转换[76];(c) 组氨酸金簇与溴萘酰亚胺聚合物共同掺杂到聚乙烯醇基质中调控发光[77];(d) GSH-AuNCs及主客体超分子自组装策略构建温度、湿度双重响应的发光材料[78]
Fig.3 (a) Luminescent nanoswitches constructed based on supramolecular assembly strategy to regulate the luminescence of CC/DTT-AuNCs[75]; (b) Fluorescence-to-phosphorescence switching of molecular AuNCs induced by aggregation[76]; (c) AuNCs@histidine and poly-BrNpA doped into PVA matrix to regulate luminescence[77]; (d) GSH-AuNCs and host-guest supramolecular constructed temperature-humidity dual-responsive luminescent materials through self-assembly strategy[78]
图4 (a) ATT-AuNCs与精氨酸之间通过主客体相互作用增强水溶性金簇绿色发光[80];(b) 基于葫芦脲和FGGC-AuNCs表面配体间主客体包结策略实现在水溶液中点亮FGGC-AuNCs[82];(c) 壳聚糖介导的具有不同发光的Au(0)@Au(Ⅰ)-SG NCs在超分子作用力形成可逆化凝胶[84];(d) GSH@AuNCs作为交联剂构建水凝胶,并利用水凝胶丰富的氢键网络结构增强GSH@AuNCs发光[85]
Fig.4 (a) Enhanced green luminescence of water-soluble ATT-AuNCs through host-guest interaction between ATT-AuNCs and arginine[80]; (b) Brighten FGGC-AuNCs in aqueous solution based on host-guest inclusion strategy between CB and the surface ligands of FGGC-AuNCs[82]; (c) Chitosan mediated Au(0)@Au(Ⅰ)-SG NCs with different luminescence to form reversible gels under supramolecular forces[84]; (d) GSH@AuNCs as cross-linkers to construct hydrogels and utilize their abundant hydrogen bond network structures enhancing the luminescence of GSH@AuNCs[85]
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