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258 Aktuelle Fachpublikationen zum Thema Nanopartikel

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Tandem Molecular Self‐Assembly in Liver Cancer Cells

18.01.2018 | Jie Zhan, Yanbin Cai, Shuangshuang He, Ling Wang, Zhimou Yang, Angewandte Chemie, 2018

Abstract We herein describe the tandem molecular self‐assembly of a peptide derivative (1) that is controlled by a combination of enzymatic and chemical reactions. In phosphate‐buffered saline (PBS), compound 1 self‐assembles first into nanoparticles by phosphatase and then into nanofibers by ...

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Photoluminescence Lifetime Imaging of Synthesized Proteins in Living Cells Using an Iridium–Alkyne Probe

13.10.2017 | Xinrong Zhang, Jinyu Wang, Jie Xue, Zihe Yan, Sichun Zhang, Juan Qiao; Jinyu Wang, Jie Xue, Zihe Yan, Sichun Zhang, ..., Angewandte Chemie, 2017

Abstract Designing probes for real‐time imaging of dynamic processes in living cells is a continuous challenge. Herein, a novel near‐infrared (NIR) photoluminescence probe having a long lifetime was exploited for photoluminescence lifetime imaging (PLIM) using an iridium‐alkyne complex. This ...

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A Freestanding Selenium Disulfide Cathode Based on Cobalt Disulfide‐Decorated Multichannel Carbon Fibers with Enhanced Lithium Storage Performance

05.10.2017 | Xiong-Wen (David) Lou; Jintao Zhang, Zhen Li, Xiong Wen (David) Lou, Angewandte Chemie, 2017

Abstract SeS2 shows attractive advantages beyond bare S and Se as a cathode material for lithium storage. Here, a freestanding lotus root‐like carbon fiber network decorated with CoS2 nanoparticles (denoted as CoS2@LRC) has been designed and prepared as the SeS2 host for enhancing the lithium ...

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Innentitelbild: Precisely Assembled Cyclic Gold Nanoparticle Frames by 2D Polymer Single‐Crystal Templating (Angew. Chem. 44/2017)

05.10.2017 | Shan Mei, Hao Qi, Tian Zhou, Christopher Y. Li, Angewandte Chemie, 2017

Freistehende molekulare Rahmen wurden durch eine gerichtete Assemblierungsmethode hergestellt, bei der Nanopartikel mithilfe von Polymerkristallen (PSCs) als Templat präzise verknüpft werden. C. Y. Li und Mitarbeiter beschreiben in ihrer Zuschrift (DOI: 10.1002/ange.201706180), wie PSCs die ...

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The Effect of Drug Loading on Micelle Properties: Solid‐State NMR as a Tool to Gain Structural Insight

01.06.2017 | Manuela Callari, Paul L. De Souza, Aditya Rawal, Martina H. Stenzel, Angewandte Chemie, 2017

Abstract The present study highlights the importance of understanding the structural changes of micelles induced by drug loading on their physico‐chemical properties. A block copolymer with attached fructose, which interacts with GLUT5 receptor, was used and conjugated with a low and a high ...

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Aufklärung der Rolle von CeO2‐Nanopartikel‐Auflösung bei der Aufnahme in die Pflanze mithilfe intelligenter Radiomarkierung

19.05.2017 | Stefan Schymura, Thomas Fricke, Heike Hildebrand, Karsten Franke, Angewandte Chemie, 2017

Abstract Die Identifizierung der Hauptaufnahmepfade von technischen Nanopartikeln in Pflanzen ist ein wichtiger Faktor bei der Einschätzung ihres Verbleibs in der Umwelt und der damit verbundenen Risiken. Durch den Einsatz unterschiedlicher Radiomarkierungsmethoden gelang es, eine ...

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A Bifunctional Hybrid Electrocatalyst for Oxygen Reduction and Evolution: Cobalt Oxide Nanoparticles Strongly Coupled to B,N‐Decorated Graphene

19.05.2017 | Yun Tong, Pengzuo Chen, Tianpei Zhou, Kun Xu, Wangsheng Chu, Changzheng Wu, Yi Xie, Angewandte Chemie, 2017

Abstract The electrocatalyzed oxygen reduction and evolution reactions (ORR and OER, respectively) are the core components of many energy conversion systems, including water splitting, fuel cells, and metal–air batteries. Rational design of highly efficient non‐noble materials as bifunctional ...

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The Structural Fate of Individual Multicomponent Metal‐Oxide Nanoparticles in Polymer Nanoreactors

16.05.2017 | Jingshan S. Du, Peng‐Cheng Chen, Brian Meckes, Zhuang Xie, Jinghan Zhu, Yuan Liu, Vinayak P. Dravid, Chad A. Mirkin, Angewandte Chemie, 2017

Abstract Multicomponent nanoparticles can be synthesized with either homogeneous or phase‐segregated architectures depending on the synthesis conditions and elements incorporated. To understand the parameters that determine their structural fate, multicomponent metal‐oxide nanoparticles ...

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Directed C−H Activation and Tandem Cross‐Coupling Reactions Using Palladium Nanocatalysts with Controlled Oxidation

15.05.2017 | Kiseong Kim, Younjae Jung, Suyeon Lee, Mijong Kim, Dongwoo Shin, Hyeeun Byun, Sung June Cho, Hyunjoon Song, Hyunwoo Kim, Angewandte Chemie, 2017

Abstract Controlled oxidation of palladium nanoparticles provided high‐valent PdIV oxo‐clusters which efficiently promote directed C−H halogenation reactions. In addition, palladium nanoparticles can undergo changes in oxidation states to provide both high‐valent PdIV and low‐valent Pd0 ...

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Multi‐shelled Dendritic Mesoporous Organosilica Hollow Spheres: Roles of Composition and Architecture in Cancer Immunotherapy

03.05.2017 | Yannan Yang, Yao Lu, Prasanna Lakshmi Abbaraju, Jun Zhang, Min Zhang, Guangya Xiang, Chengzhong Yu, Angewandte Chemie, 2017

Abstract Developing potent adjuvants for the stimulation of robust immune response is central for effective cancer immunotherapy. Double‐shelled dendritic mesoporous organosilica hollow spheres are an excellent adjuvant and provide superior immunity in cancer immunotherapy, and better than ...

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