Ultrathin Polymer Nanotubes Assembled from Side-Chain Amphiphilic Alternating Azocopolymers for the Potential of Highly-Efficient and Photo-Controllable Dye Removal

Song, Qipeng; Wu, Pengchao; Liu, Fan; Sun, Zichao; Jiang, Caixia; Gao, Liang; Chen, Jianzhuang; Jin, Haibao; Lin, Jiaping; Lin, Shaoliang

doi:10.1021/acs.macromol.4c00524

Cited by 3 publications

(1 citation statement)

References 55 publications

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“…Both first and second self-assemblies are driven by hydrophobic interaction and π–π stacking of azobenzene moieties, subsequently propagating into ultralong 1D UTONFs. Therefore, the pendant hydrophobic conjugate stacking mechanism is accountable for the formation of UTONFs, similar to our previous work on other ultrathin nanomaterials. − Furthermore, we altered the hydrophobic sequence to N -(octyl)glycine (denoted N Oct ) to yield a new AAP (i.e., AAP- g -(N Oct N OH ) 6 ), which self-assembled into UTONFs as well (Figure S6). This clearly demonstrates the generality of our strategy in creating UTONFs of interest.…”

Section: Resultssupporting

confidence: 72%

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Jin,

Wu,

Liu

et al. 2024

ACS Nano

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Ultrathin organic nanofibers (UTONFs) represent an emerging class of nanomaterials as they carry a set of favorable attributes, including ultrahigh specific surface area, lightweight, and mechanical flexibility, over inorganic counterparts, for use in biomedicine and nanotechnology. However, precise synthesis of uniform UTONFs (diameter ≤ 2 nm) with tailored functionalities remained challenging. Herein, we report robust multifunctional UTONFs using hydrophobic interaction-driven self-assembly of amphiphilic alternating peptoids containing hydrophobic photoresponsive azobenzene and hydrophilic hydroxyl moieties periodically arranged along the peptoid backbone. Notably, the as-crafted UTONFs are approximately 2 nm in diameter and tens of micrometers in length (an aspect ratio, AR, of ∼10000), exemplifying the UTONFs with the smallest diameter yielded via self-assembly. Intriguingly, UTONFs were disassembled into short-segmented nanofibers and controllably reassembled into UTONFs, resembling "step-growth polymerization". Photoisomerization of azobenzene moieties leads to reversible transformation between UTONFs and spherical micelles. Such meticulously engineered UTONFs demonstrate potential for catalysis, bioimaging, and antibacterial therapeutics. Our study highlights the significance of the rational design of amphiphiles containing alternating hydrophobic and hydrophilic moieties in constructing otherwise unattainable extremely thin UTONFs with ultrahigh AR and stimuli-responsive functionalities for energy and bionanotechnology.

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Section: Resultssupporting

confidence: 72%

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Jin,

Wu,

Liu

et al. 2024

ACS Nano

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Liquid‐Crystallization‐Driven Self‐Assembly toward Uniform Multi‐Morphology Fried‐Egg‐Like Nanostructures

Xia,

Zhu,

et al. 2024

Chemistry A European J

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Liquid‐crystallization‐driven self‐assembly (LCDSA) has recently emerged as an efficient strategy to create uniform one‐dimensional (1‐D), 2‐D and 3‐D nanostructures in a controlled manner. However, the examples of generation of uniform multi‐morphology nanostructures from solution self‐assembly of one single polymer sample are rare. Herein, we report the first example of preparation of multi‐morphology fried‐egg‐like nanostructures consisting of an inner spherical/bowl‐like core of uniform size and platelets protruded from the core by LCDSA of PAMAM‐Azo6 (PAMAM = polyamidoamine, Azo = azobenzene) in methanol. It is disclosed that the different aggregation rates for PAMAM‐Azo6 with varying contents of Azo units spontaneously separated nucleation and growth stages, which led to the formation of inner spherical/bowl‐like cores (“seeds”) firstly, followed by the formation of platelets protruded from the edges of inner core to give “imperfect” fried‐egg‐like nanostructures. Additional annealing of initially formed “imperfect” fried‐egg‐like micelles will promote the rearrangement of Azo units to give thermodynamically‐favored “perfect” fried‐egg‐shaped micelles with a uniform dimension both in the core and whole structure. This work not only provides an efficient strategy to create uniform multi‐morphology fried‐egg‐shaped nanostructures, but also reveals the essential impact of aggregation kinetics of liquid‐crystalline‐coil BCPs in the formation of multi‐morphology nanostructures.

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Concise synthesis of a light/temperature/pH/CO₂-quadruple responsive azobenzene functionalized homopolymer for reversible photopatterning

Wang,

Si,

Liu

et al. 2024

Polym. Chem.

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Ultrathin Polymer Nanotubes Assembled from Side-Chain Amphiphilic Alternating Azocopolymers for the Potential of Highly-Efficient and Photo-Controllable Dye Removal

Cited by 3 publications

References 55 publications

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Liquid‐Crystallization‐Driven Self‐Assembly toward Uniform Multi‐Morphology Fried‐Egg‐Like Nanostructures

Concise synthesis of a light/temperature/pH/CO₂-quadruple responsive azobenzene functionalized homopolymer for reversible photopatterning

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Ultrathin Polymer Nanotubes Assembled from Side-Chain Amphiphilic Alternating Azocopolymers for the Potential of Highly-Efficient and Photo-Controllable Dye Removal

Cited by 3 publications

References 55 publications

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Robust Multifunctional Ultrathin 2 Nanometer Organic Nanofibers

Liquid‐Crystallization‐Driven Self‐Assembly toward Uniform Multi‐Morphology Fried‐Egg‐Like Nanostructures

Concise synthesis of a light/temperature/pH/CO2-quadruple responsive azobenzene functionalized homopolymer for reversible photopatterning

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Concise synthesis of a light/temperature/pH/CO₂-quadruple responsive azobenzene functionalized homopolymer for reversible photopatterning