Photoresponsive Photoacid-Macroion Nano-Assemblies.
作者： Alexander Zika , Sarah Bernhardt , Franziska Gröhn
关键词: Materials science 、 Photochemistry 、 Nanostructure 、 Nanoparticle 、 Molecule 、 Photoexcitation 、 Polyelectrolyte 、 Dynamic light scattering 、 Absorption spectroscopy 、 Dendrimer
摘要: In this study, light-responsive nano-assemblies with light-switchable size based on photoacids are presented. Anionic disulfonated napthol derivates and cationic dendrimer macroions used as building blocks for electrostatic self-assembly. Nanoparticles already formed under the exclusion of light a result interactions. Upon photoexcitation, an excited-state dissociation photoacidic hydroxyl group takes place, which leads to more highly charged linker molecule and, subsequently, change in structure nano-assemblies. The effects charge ratio concentration stability have been examined absorption spectroscopy ζ-potential measurements. influence chemical three isomeric shape nanoscale aggregates has studied by dynamic scattering atomic force microscopy, revealing direct correlation strength photoacid changes assemblies upon irradiation.
mdpi.com
sci-hub.st 参考文章(53)
Dandan Chong, Junyan Tan, Jinlong Zhang, Yue Zhou, Xinhua Wan, Jie Zhang, Dual electrical switching permeability of vesicles via redox-responsive self-assembly of amphiphilic block copolymers and polyoxometalates Chemical Communications. ,vol. 54, pp. 7838- 7841 ,(2018) , 10.1039/C8CC03749C
Hejin Jiang, Yuqian Jiang, Jianlei Han, Li Zhang, Minghua Liu, Helical Nanostructures: Chirality Transfer and a Photodriven Transformation from Superhelix to Nanokebab. Angewandte Chemie. ,vol. 58, pp. 785- 790 ,(2018) , 10.1002/ANIE.201811060
Su Myat Thaung, Hla Myo Tun, Khin Kyu Kyu Win, Myint Myint Than, Aye Su Su Phyo, Exploratory Data Analysis Based on Remote Health Care Monitoring System by Using IoT Communications. ,vol. 8, pp. 1- ,(2020) , 10.11648/J.COM.20200801.11
Stephen G. Schulman, Leonard S. Rosenberg, William R. Vincent, Proton exchange in the lowest excited singlet state of 2-naphthol-6,8-disulfonate. Demonstration of the establishment of prototropic equilibrium in the excited state Journal of the American Chemical Society. ,vol. 101, pp. 139- 142 ,(1979) , 10.1021/JA00495A023
Michelle BM Pereira, Aline M Santos, Danieli C Gonçalves, Alisson C Cardoso, Sílvio R Consonni, Fabio C Gozzo, Paulo S Oliveira, Ana Helena M Pereira, Alana R Figueiredo, Ana O Tiroli-Cepeda, Carlos HI Ramos, André A De Thomaz, Carlos L Cesar, Kleber G Franchini, None, Correction: Corrigendum: αB-crystallin interacts with and prevents stress-activated proteolysis of focal adhesion kinase by calpain in cardiomyocytes Nature Communications. ,vol. 6, pp. 1- 2 ,(2015) , 10.1038/NCOMMS7508
Carlos Cardenas-Daw, Franziska Gröhn, Photo-Induced Assembly of Nanostructures Triggered by Short-Lived Proton Transfers in the Excited-State Journal of the American Chemical Society. ,vol. 137, pp. 8660- 8663 ,(2015) , 10.1021/JACS.5B01357
Th. Förster, Elektrolytische Dissoziation angeregter Moleküle Zeitschrift für Elektrochemie und angewandte physikalische Chemie. ,vol. 54, pp. 42- 46 ,(1950) , 10.1002/BBPC.19500540111
Andong Wang, Wenyue Shi, Jianbin Huang, Yun Yan, Adaptive soft molecular self-assemblies Soft Matter. ,vol. 12, pp. 337- 357 ,(2016) , 10.1039/C5SM02397A
Noam Agmon, Wolfgang Rettig, Christian Groth, Electronic determinants of photoacidity in cyanonaphthols. Journal of the American Chemical Society. ,vol. 124, pp. 1089- 1096 ,(2002) , 10.1021/JA003875M
Jasmin Düring, Anne Hölzer, Ute Kolb, Robert Branscheid, Franziska Gröhn, Supramolecular organic-inorganic hybrid assemblies with tunable particle size: interplay of three noncovalent interactions. Angewandte Chemie. ,vol. 52, pp. 8742- 8745 ,(2013) , 10.1002/ANIE.201302773