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  1. Article ; Online: Aggregation Behavior of Cyclodextrin-Based [3]Rotaxanes.

    Akae, Yosuke / Theato, Patrick

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2023  Volume 29, Issue 50, Page(s) e202301582

    Abstract: The aggregation of a cyclodextrin (CD)-based [3]rotaxane has been observed and analyzed in detail for the first time in this work. Although the hexagonal packing aggregation of CD-based polyrotaxane is a well known phenomenon, corresponding studies in ... ...

    Abstract The aggregation of a cyclodextrin (CD)-based [3]rotaxane has been observed and analyzed in detail for the first time in this work. Although the hexagonal packing aggregation of CD-based polyrotaxane is a well known phenomenon, corresponding studies in terms of rotaxanes without any polymer structure have not been conducted so far, probably owing to the difficulty of the molecular design. We synthesized a series of [3]rotaxane species by using a urea-end-capping method and evaluated their aggregation behavior by XRD and SEM measurements. [3]Rotaxane species containing native CD rings showed clear signals assigned to the hexagonal packing by XRD measurement as did polyrotaxane; this proved their aggregation capability. Because the corresponding per-acetylated derivatives did not show this aggregation behavior, the driving force of this aggregation was suggested to be hydrogen bond formation among CD units. The effect of axle end structures and partial acetylation of CDs were also studied.
    Language English
    Publishing date 2023-07-17
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202301582
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  2. Article ; Online: Synthesizing Polyethylene from Polyacrylates: A Decarboxylation Approach.

    Frech, Stefan / Theato, Patrick

    ACS macro letters

    2022  Volume 11, Issue 2, Page(s) 161–165

    Abstract: Herein, the synthesis of polyethylene via an innovative post-polymerization modification (PPM) approach is reported. For this, a block copolymer of poly[ ...

    Abstract Herein, the synthesis of polyethylene via an innovative post-polymerization modification (PPM) approach is reported. For this, a block copolymer of poly[
    MeSH term(s) Decarboxylation ; Polyethylene ; Polymerization ; Polymers
    Chemical Substances Polymers ; Polyethylene (9002-88-4)
    Language English
    Publishing date 2022-01-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2161-1653
    ISSN (online) 2161-1653
    DOI 10.1021/acsmacrolett.1c00723
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  3. Article ; Online: Branched Poly(arylene ether ketone sulfone)s with Ultradensely Sulfonated Branched Centers for Proton Exchange Membranes: Effect of the Positions of the Sulfonic Acid Groups.

    Xie, Yunji / Liu, Di / Ringuette, Anna / Théato, Patrick

    ACS applied materials & interfaces

    2023  Volume 15, Issue 20, Page(s) 24517–24527

    Abstract: Branched sulfonated polymers present considerable potential for application as proton exchange membranes, yet investigation of branched polymers containing sulfonated branched centers remains to be advanced. Herein, we report a series of polymers with ... ...

    Abstract Branched sulfonated polymers present considerable potential for application as proton exchange membranes, yet investigation of branched polymers containing sulfonated branched centers remains to be advanced. Herein, we report a series of polymers with ultradensely sulfonated branched centers, namely, B-
    Language English
    Publishing date 2023-05-15
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c04153
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  4. Article ; Online: Polymeric Janus nanorods

    Huang, Xia / Mutlu, Hatice / Dong, Wenyuan / Theato, Patrick

    Soft matter

    2023  Volume 19, Issue 30, Page(s) 5663–5667

    Abstract: We report a novel method for the fabrication of polymeric Janus ... ...

    Abstract We report a novel method for the fabrication of polymeric Janus nanorods
    Language English
    Publishing date 2023-08-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2191476-X
    ISSN 1744-6848 ; 1744-683X
    ISSN (online) 1744-6848
    ISSN 1744-683X
    DOI 10.1039/d3sm00751k
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  5. Article ; Online: 3D-bioprintable endothelial cell-laden sacrificial ink for fabrication of microvessel networks.

    Cheng, Kun-Chih / Theato, Patrick / Hsu, Shan-Hui

    Biofabrication

    2023  Volume 15, Issue 4

    Abstract: Although various research efforts have been made to produce a vascular-like network structure as scaffolds for tissue engineering, there are still several limitations. Meanwhile, no articles have been published on the direct embedding of cells within a ... ...

    Abstract Although various research efforts have been made to produce a vascular-like network structure as scaffolds for tissue engineering, there are still several limitations. Meanwhile, no articles have been published on the direct embedding of cells within a glucose sensitive sacrificial hydrogel followed by three-dimensional (3D) bioprinting to fabricate vascular structures. In this study, the hydrogel composed of reversibly crosslinked poly(ethylene glycol) diacrylate and dithiothreitol with borax and branched polyethylenimine was used as the sacrificial hydrogel to fabricate vascular-like network structure. The component proportion ratio of the sacrificial hydrogel was optimized to achieve proper self-healing, injectable, glucose-sensitive, and 3D printing properties through the balance of boronate ester bond, hydrogen bond, and steric hinderance effect. The endothelial cells (ECs) can be directly embedded into sacrificial hydrogel and then bioprinted through a 110
    MeSH term(s) Endothelial Cells ; Ink ; Tissue Engineering/methods ; Hydrogels/chemistry ; Microvessels ; Glucose ; Bioprinting/methods ; Printing, Three-Dimensional ; Tissue Scaffolds/chemistry
    Chemical Substances Hydrogels ; Glucose (IY9XDZ35W2)
    Language English
    Publishing date 2023-09-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2500944-8
    ISSN 1758-5090 ; 1758-5082
    ISSN (online) 1758-5090
    ISSN 1758-5082
    DOI 10.1088/1758-5090/acfac1
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  6. Article ; Online: Photoresponsive Spiropyran and DEGMA-Based Copolymers with Photo-Switchable Glass Transition Temperatures.

    Pruthi, Vaishali / Akae, Yosuke / Théato, Patrick

    Macromolecular rapid communications

    2023  Volume 44, Issue 19, Page(s) e2300270

    Abstract: Herein, novel photoresponsive spiropyran (SP)-based P(DEGMA-co-SpMA) copolymers with variable percentages of SP fractions are synthesized. The SP group present in these polymers exhibited the abilities of reversible photoisomerism. Their photoresponsive, ...

    Abstract Herein, novel photoresponsive spiropyran (SP)-based P(DEGMA-co-SpMA) copolymers with variable percentages of SP fractions are synthesized. The SP group present in these polymers exhibited the abilities of reversible photoisomerism. Their photoresponsive, structural, and thermal properties have been investigated and compared using various characterization techniques. These light-responsive copolymers are found to exhibit photoswitchable glass transition temperature (T
    Language English
    Publishing date 2023-07-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202300270
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  7. Article ; Online: Amyloid β-Peptide Segment Conjugated Side-Chain Proline-Based Polymers as Potent Inhibitors in Lysozyme Amyloidosis.

    Nayak, Kasturee / Ghosh, Pooja / Barman, Soumen / Sudhamalla, Babu / Theato, Patrick / De, Priyadarsi

    Bioconjugate chemistry

    2024  Volume 35, Issue 3, Page(s) 312–323

    Abstract: Developing effective amyloidosis inhibitors poses a significant challenge due to the dynamic nature of the protein structures, the complex interplay of interfaces in protein-protein interactions, and the irreversible nature of amyloid assembly. The ... ...

    Abstract Developing effective amyloidosis inhibitors poses a significant challenge due to the dynamic nature of the protein structures, the complex interplay of interfaces in protein-protein interactions, and the irreversible nature of amyloid assembly. The interactions of amyloidogenic polypeptides with other peptides play a pivotal role in modulating amyloidosis and fibril formation. This study presents a novel approach for designing and synthesizing amyloid interaction surfaces using segments derived from the amyloid-promoting sequence of amyloid β-peptide [VF(Aβ(18-19)/FF(Aβ(19-20)/LVF(Aβ(17-19)/LVFF(Aβ(17-20)], where VF, FF, LVF and LVFF stands for valine phenylalanine dipeptide, phenylalanine phenylalanine dipeptide, leucine valine phenylalanine tripeptide and leucine valine phenylalanine phenylalanine tetrapeptide, respectively. These segments are conjugated with side-chain proline-based methacrylate polymers serving as potent lysozyme amyloidosis inhibitors and demonstrating reduced cytotoxicity of amyloid aggregations. Di-, tri-, and tetra-peptide conjugated chain transfer agents (CTAs) were synthesized and used for the reversible addition-fragmentation chain transfer polymerization of
    MeSH term(s) Humans ; Amyloid beta-Peptides/chemistry ; Proline ; Leucine ; Polymers/chemistry ; Muramidase ; Amyloidosis/drug therapy ; Amyloidosis/metabolism ; Amyloid ; Dipeptides/pharmacology ; Phenylalanine ; Valine
    Chemical Substances Amyloid beta-Peptides ; Proline (9DLQ4CIU6V) ; Leucine (GMW67QNF9C) ; Polymers ; Muramidase (EC 3.2.1.17) ; Amyloid ; Dipeptides ; Phenylalanine (47E5O17Y3R) ; Valine (HG18B9YRS7)
    Language English
    Publishing date 2024-02-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1024041-x
    ISSN 1520-4812 ; 1043-1802
    ISSN (online) 1520-4812
    ISSN 1043-1802
    DOI 10.1021/acs.bioconjchem.3c00509
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    In stock of ZB MED Cologne/Königswinter

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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
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  8. Article ; Online: A Tribute to Rudolf Zentel and His Lifetime Research Achievements.

    Barz, Matthias / Nuhn, Lutz / Theato, Patrick

    Macromolecular rapid communications

    2022  Volume 43, Issue 12, Page(s) e2200311

    Language English
    Publishing date 2022-06-18
    Publishing country Germany
    Document type Editorial ; Historical Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202200311
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  9. Article ; Online: Decarboxylation of Poly[N-(acryloyloxy)phthalimide] as a Versatile Tool for Postpolymerization Modification.

    Frech, Stefan / Molle, Edgar / Hub, Cornelius / Theato, Patrick

    Macromolecular rapid communications

    2022  Volume 43, Issue 10, Page(s) e2200068

    Abstract: Herein the decarboxylation of poly[N-(acryloyloxy)phthalimide] (PAP) for the synthesis of functionalized polymers is reported. PAP homopolymer and block copolymers are used as precursor polymers for the straightforward functionalization via ... ...

    Abstract Herein the decarboxylation of poly[N-(acryloyloxy)phthalimide] (PAP) for the synthesis of functionalized polymers is reported. PAP homopolymer and block copolymers are used as precursor polymers for the straightforward functionalization via decarboxylation and subsequent Michael-type addition or nitroxide radical coupling (NRC).
    MeSH term(s) Decarboxylation ; Phthalimides ; Polymers
    Chemical Substances Phthalimides ; Polymers
    Language English
    Publishing date 2022-04-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202200068
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  10. Article ; Online: Synergy of Macrocycles and Macromolecular Topologies: An Efficient [3

    Gauthier-Jaques, Martin / Theato, Patrick

    ACS macro letters

    2020  Volume 9, Issue 5, Page(s) 700–705

    Abstract: The development of complex topologies such as macromolecular cages constitutes a fascinating aspect of polymer chemistry. In the present work, a novel strategy involving self-closing bifunctional end-groups, which under specific conditions, are allowed ... ...

    Abstract The development of complex topologies such as macromolecular cages constitutes a fascinating aspect of polymer chemistry. In the present work, a novel strategy involving self-closing bifunctional end-groups, which under specific conditions, are allowed to assemble themselves into a predefined thermodynamically favored macrostructure, was designed to fulfill the topological conversion of
    Language English
    Publishing date 2020-04-29
    Publishing country United States
    Document type Journal Article
    ISSN 2161-1653
    ISSN (online) 2161-1653
    DOI 10.1021/acsmacrolett.0c00248
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