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  1. Article ; Online: RAFT Emulsion Polymerization of Styrene Using a Poly((

    Nieswandt, Katharina / Georgopanos, Prokopios / Held, Martin / Sperling, Evgeni / Abetz, Volker

    Polymers

    2021  Volume 14, Issue 1

    Abstract: Thermoresponsive poly(( ...

    Abstract Thermoresponsive poly((
    Language English
    Publishing date 2021-12-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym14010062
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Multicomponent Network Formation in Selective Layer of Composite Membrane for CO

    Lillepärg, Jelena / Sperling, Evgeni / Blanke, Marit / Held, Martin / Shishatskiy, Sergey

    Membranes

    2021  Volume 11, Issue 3

    Abstract: As a promising material for ... ...

    Abstract As a promising material for CO
    Language English
    Publishing date 2021-02-28
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2077-0375
    ISSN 2077-0375
    DOI 10.3390/membranes11030174
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: An enzymatic continuous-flow reactor based on a pore-size matching nano- and isoporous block copolymer membrane.

    Zhang, Zhenzhen / Gao, Liang / Boes, Alexander / Bajer, Barbara / Stotz, Johanna / Apitius, Lina / Jakob, Felix / Schneider, Erik S / Sperling, Evgeni / Held, Martin / Emmler, Thomas / Schwaneberg, Ulrich / Abetz, Volker

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 3308

    Abstract: Continuous-flow biocatalysis utilizing immobilized enzymes emerged as a sustainable route for chemical synthesis. However, inadequate biocatalytic efficiency from current flow reactors, caused by non-productive enzyme immobilization or enzyme-carrier ... ...

    Abstract Continuous-flow biocatalysis utilizing immobilized enzymes emerged as a sustainable route for chemical synthesis. However, inadequate biocatalytic efficiency from current flow reactors, caused by non-productive enzyme immobilization or enzyme-carrier mismatches in size, hampers its widespread application. Here, we demonstrate a general-applicable and robust approach for the fabrication of a high-performance enzymatic continuous-flow reactor via integrating well-designed scalable isoporous block copolymer (BCP) membranes as carriers with an oriented and productive immobilization employing material binding peptides (MBP). Densely packed uniform enzyme-matched nanochannels of well-designed BCP membranes endow the desired nanoconfined environments towards a productive immobilized phytase. Tuning nanochannel properties can further regulate the complex reaction process and fortify the catalytic performance. The synergistic design of enzyme-matched carriers and efficient enzyme immobilization empowers an excellent catalytic performance with >1 month operational stability, superior productivity, and a high space-time yield (1.05 × 10
    MeSH term(s) Bioreactors ; Enzymes, Immobilized/chemistry ; Biocatalysis ; Catalysis ; Polymers/chemistry
    Chemical Substances Enzymes, Immobilized ; Polymers
    Language English
    Publishing date 2024-04-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-47007-y
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  4. Article ; Online: Chemically Tailored Multifunctional Asymmetric Isoporous Triblock Terpolymer Membranes for Selective Transport.

    Zhang, Zhenzhen / Rahman, Md Mushfequr / Abetz, Clarissa / Höhme, Anke-Lisa / Sperling, Evgeni / Abetz, Volker

    Advanced materials (Deerfield Beach, Fla.)

    2020  Volume 32, Issue 8, Page(s) e1907014

    Abstract: Membrane-based separation of organic molecules with 1-2 nm lateral dimensions is a demanding but rather underdeveloped technology. The major challenge is to fabricate membranes having distinct nanochannels with desired functionality. Here, a bottom-up ... ...

    Abstract Membrane-based separation of organic molecules with 1-2 nm lateral dimensions is a demanding but rather underdeveloped technology. The major challenge is to fabricate membranes having distinct nanochannels with desired functionality. Here, a bottom-up strategy to produce such a membrane using a tailor-made triblock terpolymer featuring miscible end blocks with two different functional groups is demonstrated. A scalable multifunctional integral asymmetric isoporous membrane is fabricated by the solvent evaporation-induced self-assembly of the block copolymer combined with nonsolvent-induced phase separation. The membrane nanopores are readily functionalized using positively and negatively charged moieties by two straightforward gas-solid reactions. The pores of the post-functionalized membranes act as target-specific functional soft nanochannels due to swelling of the polyelectrolyte blocks in a hydrated state. The membranes show unprecedented separation selectivity of small molecules based on size and/or charge which demonstrates the potential of the proposed strategy to prepare next-generation nanofiltration membranes.
    Language English
    Publishing date 2020-01-16
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.201907014
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  5. Book ; Online ; Thesis: Dynamisches Verhalten teilgestreckter DNA-Moleküle in submikrofluidischen Kanälen

    Sperling, Evgeni [Verfasser] / Gerlach, Gerald [Gutachter] / Mertig, Michael [Gutachter]

    2019  

    Author's details Evgeni Sperling ; Gutachter: Gerald Gerlach, Michael Mertig
    Keywords Biowissenschaften, Biologie ; Life Science, Biology
    Subject code sg570
    Language German
    Publisher Technische Universität Dresden
    Publishing place Dresden
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  6. Article ; Online: Fully biodegradable self-rolled polymer tubes: a candidate for tissue engineering scaffolds.

    Zakharchenko, Svetlana / Sperling, Evgeni / Ionov, Leonid

    Biomacromolecules

    2011  Volume 12, Issue 6, Page(s) 2211–2215

    Abstract: We report an approach for the fabrication of fully biodegradable self-rolled tubes based on patterned polysuccinimide/polycaprolactone bilayers. These polymers are biocompatible, biodegradable, produced industrially, and are already approved for ... ...

    Abstract We report an approach for the fabrication of fully biodegradable self-rolled tubes based on patterned polysuccinimide/polycaprolactone bilayers. These polymers are biocompatible, biodegradable, produced industrially, and are already approved for biomedical purposes. Both polycaprolactone and polysuccinimide are hydrophobic and intrinsically water-insoluble. Polysuccinimide, however, hydrolyzes in physiological buffer environment yielding water-swellable polyaspartic acid that causes the rolling of the polymer bilayer and formation of tubes. We demonstrate the possibility to encapsulate yeast cells using self-rolled tubes.
    MeSH term(s) Absorbable Implants ; Aspartic Acid/analogs & derivatives ; Aspartic Acid/chemical synthesis ; Aspartic Acid/metabolism ; Biocompatible Materials/chemical synthesis ; Biocompatible Materials/metabolism ; Cell Adhesion ; Hydrolysis ; Materials Testing ; Peptides/chemical synthesis ; Peptides/chemistry ; Peptides/metabolism ; Polyesters/chemical synthesis ; Polyesters/metabolism ; Porosity ; Tissue Engineering/methods ; Tissue Scaffolds ; Wettability ; Yeasts/chemistry ; Yeasts/cytology
    Chemical Substances Biocompatible Materials ; Peptides ; Polyesters ; polycaprolactone (24980-41-4) ; polyaspartate (26063-13-8) ; poly-DL-succinimide (27881-03-4) ; Aspartic Acid (30KYC7MIAI)
    Language English
    Publishing date 2011-06-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1526-4602
    ISSN (online) 1526-4602
    DOI 10.1021/bm2002945
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  7. Article ; Online: Gold Nanoparticle-Decorated Diatom Biosilica: A Favorable Catalyst for the Oxidation of d-Glucose.

    Fischer, Cathleen / Adam, Marion / Mueller, Andrea Christiane / Sperling, Evgeni / Wustmann, Martin / van Pée, Karl-Heinz / Kaskel, Stefan / Brunner, Eike

    ACS omega

    2016  Volume 1, Issue 6, Page(s) 1253–1261

    Abstract: Diatoms are unicellular algae of enormous biodiversity that occur in all water habitats on earth. Their cell walls are composed of amorphous biosilica and exhibit species-specific nanoporous to microporous and macroporous patterning. Therefore, diatom ... ...

    Abstract Diatoms are unicellular algae of enormous biodiversity that occur in all water habitats on earth. Their cell walls are composed of amorphous biosilica and exhibit species-specific nanoporous to microporous and macroporous patterning. Therefore, diatom biosilica is a promising renewable material for various applications, such as in catalysis, drug-delivery systems, and biophotonics. In this study, diatom biosilica of three different species (
    Language English
    Publishing date 2016-12-16
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.6b00406
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  8. Article ; Online: Formation of SiC nanoparticles in an atmospheric microwave plasma.

    Vennekamp, Martin / Bauer, Ingolf / Groh, Matthias / Sperling, Evgeni / Ueberlein, Susanne / Myndyk, Maksym / Mäder, Gerrit / Kaskel, Stefan

    Beilstein journal of nanotechnology

    2011  Volume 2, Page(s) 665–673

    Abstract: We describe the formation of SiC nanopowder using an atmospheric argon microwave plasma with tetramethylsilane (TMS) as precursor. The impact of several process conditions on the particle size of the product is experimentally investigated. Particles with ...

    Abstract We describe the formation of SiC nanopowder using an atmospheric argon microwave plasma with tetramethylsilane (TMS) as precursor. The impact of several process conditions on the particle size of the product is experimentally investigated. Particles with sizes ranging from 7 nm to about 20 nm according to BET and XRD measurements are produced. The dependency of the particle size on the process parameters is evaluated statistically and explained with growth-rate equations derived from the theory of Ostwald ripening. The results show that the particle size is mainly influenced by the concentration of the precursor material in the plasma.
    Language English
    Publishing date 2011-10-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2583584-1
    ISSN 2190-4286 ; 2190-4286
    ISSN (online) 2190-4286
    ISSN 2190-4286
    DOI 10.3762/bjnano.2.71
    Database MEDical Literature Analysis and Retrieval System OnLINE

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