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Article
| Open Access
Asymmetric polyamide nanofilms with highly ordered nanovoids for water purification
Structure and morphology are critical to the performance of permeable and selective polyamide membranes in water purification. Here, the authors report a two layer asymmetric polyamide nanofilm in which a spherical polyamide dendrimer porous lower and a polyamide dense upper layer form hierarchical nanovoids.
- Bingbing Yuan
- , Shengchao Zhao
- & Q. Jason Niu
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Article
| Open Access
Mega macromolecules as single molecule lubricants for hard and soft surfaces
Synthetic globular polymers of several million molecular weight are expected to exhibit unique properties but are difficult to synthesize. Here the authors synthesize such dendritic polymers that show unique lubrication properties and act as molecular ball bearings due to their 3D compact structure, size, solubility, hydration and low intrinsic viscosities.
- Parambath Anilkumar
- , Taylor B. Lawson
- & Jayachandran N. Kizhakkedathu
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Article
| Open Access
Binary tree-inspired digital dendrimer
Digital polymers with precisely ordered units for next-generation data storage media are continually investigated for higher storage capacity. Here the authors show the synthesis of information-coded 2D digital dendrimers and the generated data matrix barcode can be read by a common hand-held device.
- Zhihao Huang
- , Qiunan Shi
- & Xiulin Zhu
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Article
| Open Access
Synthesis of structurally controlled hyperbranched polymers using a monomer having hierarchical reactivity
Hyperbranched polymers are used in many applications due to their advantageous properties such as low intrinsic viscosity, low glass transition temperature, and large number of terminal groups. Here the authors show a one-step synthesis of structurally well-controlled dendritic hyperbranched polymers.
- Yangtian Lu
- , Takashi Nemoto
- & Shigeru Yamago
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Article
| Open Access
The key role of the scaffold on the efficiency of dendrimer nanodrugs
The biological properties of dendrimers are thought to be largely dependent on the chemical nature of their surface. Here, the authors show that the internal scaffold of dendritic nanodrugs strongly influences their bioactivity, based on convergent information from biology and computation results.
- Anne-Marie Caminade
- , Séverine Fruchon
- & Rémy Poupot
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Metallodendrimers in three oxidation states with electronically interacting metals and stabilization of size-selected gold nanoparticles
Metallodendrimers containing redox-robust centres are functional molecules with many potential applications. Here, the authors fabricate iron containing metallodendrimers in a range of oxidation states and investigate their interactions with, and stabilization of, gold nanoparticles.
- Yanlan Wang
- , Lionel Salmon
- & Didier Astruc
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Macromolecular semi-rigid nanocavities for cooperative recognition of specific large molecular shapes
Large molecular shape-consistent host molecules are required for molecular recognition applications and the development of artificial enzymes. Here, the authors synthesize semi-rigid dendritic molecules with cavities capable of tunable discrimination between a range of large guest molecules.
- Takane Imaoka
- , Yuki Kawana
- & Kimihisa Yamamoto
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Synthetic regimes due to packing constraints in dendritic molecules confirmed by labelling experiments
Classical theory predicts that branching defects are unavoidable in large dendritic molecules when steric congestion becomes important. Zhang et al. present the first direct evidence of this effect by means of defect labelling of a homologous series of dendronized polymers.
- Baozhong Zhang
- , Hao Yu
- & Martin Kröger
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Controlled multi-vinyl monomer homopolymerization through vinyl oligomer combination as a universal approach to hyperbranched architectures
Hyperbranched polymers have desirable properties as novel materials, and may be synthesized from homopolymerization of multi-vinyl momomers, although this can form insoluble products at low conversions. Here, the authors produce hyperbranched polymers in high yield owing to a kinetic control mechanism.
- Tianyu Zhao
- , Yu Zheng
- & Wenxin Wang
Promoting multiexciton interactions in singlet fission and triplet fusion upconversion dendrimers