Synthesis and direct assembly of linear–dendritic copolymers via CuAAC click polymerization-induced self-assembly (CPISA)

One-pot synthesis of periodically mesostructured γ-alumina using an ABC triblock terpolymer as structure-directing agent and in situ derived rigid carbon scaffold.

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Hybrid One-Dimensional Nanostructures: One-Pot Preparation of Nanoparticle Chains via Directed Self-Assembly of in Situ Synthesized Discrete Au Nanoparticles

Langmuir ◽

10.1021/la3000526 ◽

2012 ◽

Vol 28 (14) ◽

pp. 5947-5955 ◽

Cited By ~ 19

Author(s):

Marie V. Walter ◽

Nicolas Cheval ◽

Olimpia Liszka ◽

Michael Malkoch ◽

Amir Fahmi

Keyword(s):

Self Assembly ◽

Au Nanoparticles ◽

One Pot ◽

One Dimensional ◽

Nanoparticle Chains ◽

One Dimensional Nanostructures

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Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution

RSC Advances ◽

10.1039/c6ra08823f ◽

2016 ◽

Vol 6 (82) ◽

pp. 78538-78547 ◽

Cited By ~ 7

Author(s):

Haiming Cheng ◽

Huafei Xue ◽

Guangdong Zhao ◽

Changqing Hong ◽

Xinghong Zhang

Keyword(s):

Graphene Oxide ◽

Phase Separation ◽

Self Assembly ◽

In Situ Polymerization ◽

Three Dimensional ◽

One Pot ◽

Hierarchical Porous ◽

Composite Aerogels ◽

Polymerization Induced Phase Separation

In this work, hierarchical porous graphene-based composite aerogels are synthesized by a simple and facile one-pot polymerization-induced phase separation.

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Cross-Linked Self-Assembling Peptides and Their Post-Assembly Functionalization via One-Pot and In Situ Gelation System

International Journal of Molecular Sciences ◽

10.3390/ijms21124261 ◽

2020 ◽

Vol 21 (12) ◽

pp. 4261

Author(s):

Raffaele Pugliese ◽

Fabrizio Gelain

Keyword(s):

Mechanical Properties ◽

Self Assembly ◽

Self Healing ◽

One Pot ◽

Self Assembling ◽

In Situ Gelation ◽

Wide Range ◽

Peptide Hydrogels ◽

Peptide Hydrogel

Supramolecular nanostructures formed through peptide self-assembly can have a wide range of applications in the biomedical landscape. However, they often lose biomechanical properties at low mechanical stress due to the non-covalent interactions working in the self-assembling process. Herein, we report the design of cross-linked self-assembling peptide hydrogels using a one-pot in situ gelation system, based on 1-ethyl-3-[3-dimethylaminopropyl] carbodiimide/N-hydroxysulfosuccinimide (EDC/sulfo–NHS) coupling, to tune its biomechanics. EDC/sulfo–NHS coupling led to limited changes in storage modulus (from 0.9 to 2 kPa), but it significantly increased both the strain (from 6% to 60%) and failure stress (from 19 to 35 Pa) of peptide hydrogel without impairing the spontaneous formation of β-sheet-containing nano-filaments. Furthermore, EDC/sulfo–NHS cross-linking bestowed self-healing and thixotropic properties to the peptide hydrogel. Lastly, we demonstrated that this strategy can be used to incorporate bioactive functional motifs after self-assembly on pre-formed nanostructures by functionalizing an Ac-LDLKLDLKLDLK-CONH2 (LDLK12) self-assembling peptide with the phage display-derived KLPGWSG peptide involved in the modulation of neural stem cell proliferation and differentiation. The incorporation of a functional motif did not alter the peptide’s secondary structure and its mechanical properties. The work reported here offers new tools to both fine tune the mechanical properties of and tailor the biomimetic properties of self-assembling peptide hydrogels while retaining their nanostructures, which is useful for tissue engineering and regenerative medicine applications.

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Synthesis, electronic properties and self-assembly on Au{111} of thiolated (oligo)phenothiazines

Beilstein Journal of Organic Chemistry ◽

10.3762/bjoc.6.72 ◽

2010 ◽

Vol 6 ◽

Cited By ~ 11

Author(s):

Adam W Franz ◽

Svetlana Stoycheva ◽

Michael Himmelhaus ◽

Thomas J J Müller

Keyword(s):

Dft Calculations ◽

Force Field ◽

Electronic Properties ◽

Silicon Wafer ◽

Self Assembly ◽

One Pot ◽

Monolayer Formation

(Oligo)phenothiazinyl thioacetates, synthesized by a one-pot sequence, are electrochemically oxidizable and highly fluorescent. SAMs can be readily formed from thiols prepared by in situ deprotection of the thioacetates in the presence of a gold-coated silicon wafer. Monolayer formation is confirmed by ellipsometry and the results compared to those obtained by force field and DFT calculations.

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Interpenetrating Polymer Network Hydrogels via a One-Pot and in Situ Gelation System Based on Peptide Self-Assembly and Orthogonal Cross-Linking for Tissue Regeneration

Chemistry of Materials ◽

10.1021/acs.chemmater.9b04725 ◽

2020 ◽

Vol 32 (6) ◽

pp. 2353-2364 ◽

Cited By ~ 1

Author(s):

Shohei Ishikawa ◽

Kazutoshi Iijima ◽

Daisuke Matsukuma ◽

Yukiyo Asawa ◽

Kazuto Hoshi ◽

...

Keyword(s):

Tissue Regeneration ◽

Self Assembly ◽

Polymer Network ◽

Interpenetrating Polymer Network ◽

Cross Linking ◽

One Pot ◽

In Situ Gelation

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Molecular self-assembly of a nanorod N-Li4Ti5O12/TiO2/C anode for superior lithium ion storage

Journal of Materials Chemistry A ◽

10.1039/c8ta05860a ◽

2018 ◽

Vol 6 (32) ◽

pp. 15755-15761 ◽

Cited By ~ 23

Author(s):

Sainan Luo ◽

Pengcheng Zhang ◽

Tao Yuan ◽

Jiafeng Ruan ◽

Chengxin Peng ◽

...

Keyword(s):

Self Assembly ◽

Lithium Ion ◽

Rate Performance ◽

One Pot ◽

Ion Storage ◽

Assembly Technique

A nanorod-like NT-LTO/C composite was synthesized by a novel one-pot in situ molecular self-assembly technique, which shows ultrahigh rate performance (105.5 mAh g−1 at 100C) and very stable cyclability.

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Supramolecular Chirality in Azobenzene-Containing Polymer System: Traditional Postpolymerization Self-Assembly Versus In Situ Supramolecular Self-Assembly Strategy

International Journal of Molecular Sciences ◽

10.3390/ijms21176186 ◽

2020 ◽

Vol 21 (17) ◽

pp. 6186

Author(s):

Xiaoxiao Cheng ◽

Tengfei Miao ◽

Yilin Qian ◽

Zhengbiao Zhang ◽

Wei Zhang ◽

...

Keyword(s):

Self Assembly ◽

Noncovalent Interactions ◽

Polymer System ◽

Polymerization Process ◽

Supramolecular Organization ◽

One Pot ◽

Azo Polymers ◽

Assembly Strategy ◽

Supramolecular Chirality

Recently, the design of novel supramolecular chiral materials has received a great deal of attention due to rapid developments in the fields of supramolecular chemistry and molecular self-assembly. Supramolecular chirality has been widely introduced to polymers containing photoresponsive azobenzene groups. On the one hand, supramolecular chiral structures of azobenzene-containing polymers (Azo-polymers) can be produced by nonsymmetric arrangement of Azo units through noncovalent interactions. On the other hand, the reversibility of the photoisomerization also allows for the control of the supramolecular organization of the Azo moieties within polymer structures. The construction of supramolecular chirality in Azo-polymeric self-assembled system is highly important for further developments in this field from both academic and practical points of view. The postpolymerization self-assembly strategy is one of the traditional strategies for mainly constructing supramolecular chirality in Azo-polymers. The in situ supramolecular self-assembly mediated by polymerization-induced self-assembly (PISA) is a facile one-pot approach for the construction of well-defined supramolecular chirality during polymerization process. In this review, we focus on a discussion of supramolecular chirality of Azo-polymer systems constructed by traditional postpolymerization self-assembly and PISA-mediated in situ supramolecular self-assembly. Furthermore, we will also summarize the basic concepts, seminal studies, recent trends, and perspectives in the constructions and applications of supramolecular chirality based on Azo-polymers with the hope to advance the development of supramolecular chirality in chemistry.

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In vitro and in vivo polysaccharides assembly: ultrastructural and cytochemical study of growing plant cell wall components.

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100083035 ◽

1978 ◽

Vol 36 (2) ◽

pp. 434-435

Author(s):

D. Reis ◽

B. Vian ◽

J. C. Roland

Keyword(s):

Cell Wall ◽

Self Assembly ◽

Plant Cell Wall ◽

Higher Plants ◽

Three Dimensional ◽

Cytochemical Study ◽

Wall Components

Wall morphogenesis in higher plants is a problem still open to controversy. Until now the possibility of a transmembrane control and the involvement of microtubules were mostly envisaged. Self-assembly processes have been observed in the case of walls of Chlamydomonas and bacteria. Spontaneous gelling interactions between xanthan and galactomannan from Ceratonia have been analyzed very recently. The present work provides indications that some processes of spontaneous aggregation could occur in higher plants during the formation and expansion of cell wall.Observations were performed on hypocotyl of mung bean (Phaseolus aureus) for which growth characteristics and wall composition have been previously defined.In situ, the walls of actively growing cells (primary walls) show an ordered three-dimensional organization (fig. 1). The wall is typically polylamellate with multifibrillar layers alternately transverse and longitudinal. Between these layers intermediate strata exist in which the orientation of microfibrils progressively rotates. Thus a progressive change in the morphogenetic activity occurs.

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Probing the Dynamic Self-Assembly Behaviour of Photoswitchable Wormlike Micelles in Real Time

10.26434/chemrxiv.7098695 ◽

2018 ◽

Author(s):

Elaine A. Kelly ◽

Judith E. Houston ◽

Rachel Evans

Keyword(s):

Real Time ◽

Absorption Spectroscopy ◽

Self Assembly ◽

Uv Light ◽

Wormlike Micelles ◽

Tetraethylene Glycol ◽

Light Illumination ◽

First Time ◽

Dependent Processes

Understanding the dynamic self-assembly behaviour of azobenzene photosurfactants (AzoPS) is crucial to advance their use in controlled release applications such asdrug delivery and micellar catalysis. Currently, their behaviour in the equilibrium cis-and trans-photostationary states is more widely understood than during the photoisomerisation process itself. Here, we investigate the time-dependent self-assembly of the different photoisomers of a model neutral AzoPS, <a>tetraethylene glycol mono(4′,4-octyloxy,octyl-azobenzene) </a>(C8AzoOC8E4) using small-angle neutron scattering (SANS). We show that the incorporation of in-situUV-Vis absorption spectroscopy with SANS allows the scattering profile, and hence micelle shape, to be correlated with the extent of photoisomerisation in real-time. It was observed that C8AzoOC8E4could switch between wormlike micelles (transnative state) and fractal aggregates (under UV light), with changes in the self-assembled structure arising concurrently with changes in the absorption spectrum. Wormlike micelles could be recovered within 60 seconds of blue light illumination. To the best of our knowledge, this is the first time the degree of AzoPS photoisomerisation has been tracked in-situthrough combined UV-Vis absorption spectroscopy-SANS measurements. This technique could be widely used to gain mechanistic and kinetic insights into light-dependent processes that are reliant on self-assembly.

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