Synthesis and self-assembly of photo-responsive polypeptoid-based copolymers containing azobenzene side-chains

2021 ◽  
Author(s):  
Yuxuan Zhang ◽  
Jie Huang ◽  
Jun Zhang ◽  
Xinyuan Zhu ◽  
Gangsheng Tong
Keyword(s):  
Self Assembly ◽  
Chemical Properties ◽  
Side Chains ◽  
Biotechnological Applications ◽  
Stimuli Responsive ◽  
Physical Chemical ◽  
External Stimuli

Stimuli-responsive polypeptoids are promising peptidomimetic polymers that can regulate their physical/chemical properties by means of external stimuli and have been drawn tremendous attention for potential biotechnological applications. Here, we report...

scholarly journals Metal-Organic Framework-Based Stimuli-Responsive Polymers

2021 ◽  
Vol 5 (4) ◽  
pp. 101
Author(s):  
Menglian Wei ◽  
Yu Wan ◽  
Xueji Zhang
Keyword(s):  
Metal Organic Framework ◽  
Chemical Properties ◽  
Stimuli Responsive ◽  
Guest Molecules ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Reversible Phase Transition ◽  
Metal Organic ◽  
External Stimuli ◽  
Organic Framework

Metal-organic framework (MOF) based stimuli-responsive polymers (coordination polymers) exhibit reversible phase-transition behavior and demonstrate attractive properties that are capable of altering physical and/or chemical properties upon exposure to external stimuli, including pH, temperature, ions, etc., in a dynamic fashion. Thus, their conformational change can be imitated by the adsorption/desorption of target analytes (guest molecules), temperature or pressure changes, and electromagnetic field manipulation. MOF-based stimuli responsive polymers have received great attention due to their advanced optical properties and variety of applications. Herein, we summarized some recent progress on MOF-based stimuli-responsive polymers (SRPs) classified by physical and chemical responsiveness, including temperature, pressure, electricity, pH, metal ions, gases, alcohol and multi-targets.

scholarly journals One-, Two-, and Three-Dimensional Self-Assembly of Atomically Precise Metal Nanoclusters

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1105 ◽  
Author(s):  
Ayano Ebina ◽  
Sakiat Hossain ◽  
Hikaru Horihata ◽  
Shuhei Ozaki ◽  
Shun Kato ◽  
...  
Keyword(s):  
Self Assembly ◽  
Fine Particle ◽  
Three Dimensional ◽  
Chemical Properties ◽  
Design Guidelines ◽  
Metal Nanoclusters ◽  
Functional Nanomaterials ◽  
Physical Chemical ◽  
Metal Atoms ◽  
Fine Particle Size

Metal nanoclusters (NCs), which consist of several, to about one hundred, metal atoms, have attracted much attention as functional nanomaterials for use in nanotechnology. Because of their fine particle size, metal NCs exhibit physical/chemical properties and functions different from those of the corresponding bulk metal. In recent years, many techniques to precisely synthesize metal NCs have been developed. However, to apply these metal NCs in devices and as next-generation materials, it is necessary to assemble metal NCs to a size that is easy to handle. Recently, multiple techniques have been developed to form one-, two-, and three-dimensional connected structures (CSs) of metal NCs through self-assembly. Further progress of these techniques will promote the development of nanomaterials that take advantage of the characteristics of metal NCs. This review summarizes previous research on the CSs of metal NCs. We hope that this review will allow readers to obtain a general understanding of the formation and functions of CSs and that the obtained knowledge will help to establish clear design guidelines for fabricating new CSs with desired functions in the future.

Stimuli-responsive anisotropic actuation of melem-formaldehyde polymer

2020 ◽  
Vol 7 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Yang Wang ◽  
Niannian Wu ◽  
Congyan Liu ◽  
Mohamed K. Albolkany ◽  
Min Wang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Assembly Process ◽  
Stimuli Responsive ◽  
External Stimuli

The intrinsically anisotropic melem-formaldehyde polymer that is constructed from a self-assembly process enables reversible anisotropic actuation under external stimuli.

scholarly journals Latest Advances on the Synthesis of Linear ABC-Type Triblock Terpolymers and Star-Shaped Polymers by RAFT Polymerization

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1698
Author(s):  
Athanasios Skandalis ◽  
Theodore Sentoukas ◽  
Despoina Giaouzi ◽  
Martha Kafetzi ◽  
Stergios Pispas
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Degree Of Polymerization ◽  
Stimuli Responsive ◽  
Reaction Conditions ◽  
Functional Monomers ◽  
Precise Control ◽  
Versatile Technique ◽  
External Stimuli ◽  
Triblock Terpolymers

This review article aims to cover the most recent advances regarding the synthesis of linear ABC-type triblock terpolymers and star-shaped polymers by RAFT polymerization, as well as their self-assembly properties in aqueous solutions. RAFT polymerization has received extensive attention, as it is a versatile technique, compatible with a great variety of functional monomers and reaction conditions, while providing exceptional and precise control over the final structure, with well-defined side-groups and post-polymerization engineering potential. Linear triblock terpolymers synthesis can lead to very interesting novel ideas, since there are countless combinations of stimuli/non-stimuli and hydrophilic/hydrophobic monomers that someone can use. One of their most interesting features is their ubiquitous ability to self-assemble in different nanostructures depending on their degree of polymerization (DP), block composition, solubilization protocol, internal and external stimuli. On the other hand, star-shaped polymers exhibit a more stable nanostructure, with a distinct crosslinked core and arm blocks that can also incorporate stimuli-responsive blocks for “smart” applications.

Responsive filtration membranes by polymer self-assembly

TECHNOLOGY ◽  
2016 ◽  
Vol 04 (04) ◽  
pp. 217-228 ◽  
Author(s):  
Papatya Kaner ◽  
Prity Bengani-Lutz ◽  
Ilin Sadeghi ◽  
Ayse Asatekin
Keyword(s):  
Self Assembly ◽  
Performance Parameters ◽  
Stimuli Responsive ◽  
Membrane Filters ◽  
Filtration Membranes ◽  
Chemical Manufacturing ◽  
Responsive Membranes ◽  
Responsive Behavior ◽  
Scalable Methods ◽  
External Stimuli

Membrane technologies are essential for water treatment, bioprocessing and chemical manufacturing. Stimuli-responsive membranes respond to changes in feed conditions (e.g., temperature, pH) or external stimuli (e.g., magnetic field, light) with a change in performance parameters (permeability, selectivity). This enables new functionalities such as tunable performance, self-cleaning and smart-valve behavior. Polymer self-assembly is a crucial tool for manufacturing such membranes using scalable methods, enabling easier commercialization. This review surveys approaches to impart stimuli responsive behavior to membrane filters using polymer self-assembly.

Synthesis, thermoresponsivity and multi-tunable hierarchical self-assembly of multi-responsive (AB)mC miktobrush-coil terpolymers

2020 ◽  
Vol 11 (17) ◽  
pp. 3003-3017 ◽  
Author(s):  
Xiaomin Zhu ◽  
Jian Zhang ◽  
Cheng Miao ◽  
Siyu Li ◽  
Youliang Zhao
Keyword(s):  
Physical Properties ◽  
Self Assembly ◽  
Stimuli Responsive ◽  
External Stimuli

Stimuli-responsive miktobrush-coil terpolymers can exhibit unique physical properties and hierarchical self-assembly behaviors dependent on composition, concentration and external stimuli.

scholarly journals Solution Self-Assembly of Coil-Crystalline Diblock Copolypeptoids Bearing Alkyl Side Chains

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3131
Author(s):  
Naisheng Jiang ◽  
Donghui Zhang
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
The Self ◽  
Side Chains ◽  
Two Dimensional ◽  
Biotechnological Applications ◽  
One Dimensional ◽  
Alkyl Side Chains ◽  
Assembly Behavior ◽  
Assembly Pathways

Polypeptoids, a class of synthetic peptidomimetic polymers, have attracted increasing attention due to their potential for biotechnological applications, such as drug/gene delivery, sensing and molecular recognition. Recent investigations on the solution self-assembly of amphiphilic block copolypeptoids highlighted their capability to form a variety of nanostructures with tailorable morphologies and functionalities. Here, we review our recent findings on the solutions self-assembly of coil-crystalline diblock copolypeptoids bearing alkyl side chains. We highlight the solution self-assembly pathways of these polypeptoid block copolymers and show how molecular packing and crystallization of these building blocks affect the self-assembly behavior, resulting in one-dimensional (1D), two-dimensional (2D) and multidimensional hierarchical polymeric nanostructures in solution.

scholarly journals Self-assembly of Janus Au:Fe3O4 branched nanoparticles. From organized clusters to stimuli-responsive nanogel suprastructures

2020 ◽  
Vol 2 (6) ◽  
pp. 2525-2530
Author(s):  
Javier Reguera ◽  
Tatjana Flora ◽  
Naomi Winckelmans ◽  
José C. Rodríguez-Cabello ◽  
Sara Bals
Keyword(s):  
Self Assembly ◽  
Stimuli Responsive ◽  
Small Clusters ◽  
External Stimuli

Novel suprastructures, from small clusters to micelle-like structures, are obtained by self-assembly of Janus Au:Fe3O4 nanostars under external stimuli.

scholarly journals Stimuli-Responsive Photonic Crystals

2021 ◽  
Vol 11 (5) ◽  
pp. 2119
Author(s):  
Liliana Moscardi ◽  
Guglielmo Lanzani ◽  
Giuseppe M. Paternò ◽  
Francesco Scotognella
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Light Emission ◽  
Large Range ◽  
Research Interest ◽  
Stimuli Responsive ◽  
Electrochromic Devices ◽  
Physical Chemical ◽  
Wide Range ◽  
External Stimuli

Recently, tunable photonic crystals (PhCs) have received great research interest, thanks to the wide range of applications in which they can be employed, such as light emission and sensing, among others. In addition, the versatility and ease of fabrication of PhCs allow for the integration of a large range of responsive elements that, in turn, can permit active tuning of PhC optical properties upon application of external stimuli, e.g., physical, chemical or even biological triggers. In this work, we summarize the most employed theoretical tools used for the design of optical properties of responsive PhCs and the most used fabrication techniques. Furthermore, we collect the most relevant results related to this field, with particular emphasis on electrochromic devices.

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