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  1. Article ; Online: Covalent Organic Frameworks as Model Materials for Fundamental and Mechanistic Understanding of Organic Battery Design Principles.

    Haldar, Sattwick / Schneemann, Andreas / Kaskel, Stefan

    Journal of the American Chemical Society

    2023  Volume 145, Issue 25, Page(s) 13494–13513

    Abstract: Redox-active covalent organic frameworks (COFs) have recently emerged as advanced electrodes in polymer batteries. COFs provide ideal molecular precision for understanding redox mechanisms and increasing the theoretical charge-storage capacities. ... ...

    Abstract Redox-active covalent organic frameworks (COFs) have recently emerged as advanced electrodes in polymer batteries. COFs provide ideal molecular precision for understanding redox mechanisms and increasing the theoretical charge-storage capacities. Furthermore, the functional groups on the pore surface of COFs provide highly ordered and easily accessible interaction sites, which can be modeled to establish a synergy between ex situ/in situ mechanism studies and computational methods, permitting the creation of predesigned structure-property relationships. This perspective integrates and categorizes the redox functionalities of COFs, providing a deeper understanding of the mechanistic investigation of guest ion interactions in batteries. Additionally, it highlights the tunable electronic and structural properties that influence the activation of redox reactions in this promising organic electrode material.
    Language English
    Publishing date 2023-06-12
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.3c01131
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  2. Article ; Online: High-field and fast-spinning

    Lopatik, Nikolaj / De, Ankita / Paasch, Silvia / Schneemann, Andreas / Brunner, Eike

    Physical chemistry chemical physics : PCCP

    2023  Volume 25, Issue 44, Page(s) 30237–30245

    Abstract: Two-dimensional (2D) materials, like 2D covalent organic frameworks (COFs), have been attracting increasing research interest. They are usually obtained as polycrystalline powders. Solid-state NMR spectroscopy is capable of delivering structural ... ...

    Abstract Two-dimensional (2D) materials, like 2D covalent organic frameworks (COFs), have been attracting increasing research interest. They are usually obtained as polycrystalline powders. Solid-state NMR spectroscopy is capable of delivering structural information about such materials. Previous studies have applied, for example,
    Language English
    Publishing date 2023-11-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp04144a
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  3. Article ; Online: An Alkyne-bridged Covalent Organic Framework Featuring Interactive Pockets for Bromine Capture.

    De, Ankita / Haldar, Sattwick / Schmidt, Johannes / Amirjalayer, Saeed / Reichmayr, Fanny / Lopatik, Nikolaj / Shupletsov, Leonid / Brunner, Eike / Weidinger, Inez / Schneemann, Andreas

    Angewandte Chemie (International ed. in English)

    2024  , Page(s) e202403658

    Abstract: The high degree of corrosivity and reactivity of bromine, which is released from various sources poses a serious threat to the environment. Moreover, its coexistence with iodine forming an equilibrium compound, iodine monobromide (IBr) necessitates the ... ...

    Abstract The high degree of corrosivity and reactivity of bromine, which is released from various sources poses a serious threat to the environment. Moreover, its coexistence with iodine forming an equilibrium compound, iodine monobromide (IBr) necessitates the selective capture of bromine from halogen mixtures. The electrophilicity of halogens to π-electron rich structures enabled us to strategically design a covalent organic framework for halogen capture, featuring a defined pore environment with localized sorption sites. The higher capture capacity of bromine (4.6 g g-1) over iodine by ~41 % shows its potential in selective capture. Spectroscopic results uncovering the preferential interaction sites are supported by theoretical investigations. The alkyne bridge is a core functionality promoting the selectivity in capture by synergistic physisorption, rationalized by the higher orbital overlap of bromine due to its smaller atomic size as well as reversible chemical interactions. The slip stacking in the structure has further promoted this phenomenon by creating clusters of molecular interaction sites with bromine intercalated between the layers. The inclusion of unsaturated moieties, i.e. triple bonds and the complementary pore geometry offer a promising design strategy for the construction of porous materials for halogen capture.
    Language English
    Publishing date 2024-05-13
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202403658
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  4. Article ; Online: Production and Application of Insect Virus-Based VLPs.

    Gopal, Radhika / Schneemann, Anette

    Methods in molecular biology (Clifton, N.J.)

    2018  Volume 1776, Page(s) 125–141

    Abstract: Virus-like particles (VLPs) are self-assembling platforms composed of viral structural proteins. They are used for a variety of purposes, ranging from the study of virus assembly to vaccine development. VLPs can be produced in plants, bacteria, yeast, ... ...

    Abstract Virus-like particles (VLPs) are self-assembling platforms composed of viral structural proteins. They are used for a variety of purposes, ranging from the study of virus assembly to vaccine development. VLPs can be produced in plants, bacteria, yeast, and insect and mammalian cells. The baculovirus expression system is one of the most commonly used systems for production of VLPs in eukaryotic cells. This chapter provides a brief overview of the main strategies used to generate recombinant baculoviruses and the applications of insect virus-derived VLPs in basic and applied research. It then describes detailed protocols for generation of recombinant baculoviruses, screening for their expression of VLPs in insect cells, and VLP purification.
    MeSH term(s) Animals ; Baculoviridae/genetics ; Humans ; Insecta/virology ; Vaccines, Virus-Like Particle/genetics ; Viral Structural Proteins/genetics ; Virus Assembly/genetics
    Chemical Substances Vaccines, Virus-Like Particle ; Viral Structural Proteins
    Language English
    Publishing date 2018-06-04
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-4939-7808-3_8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Hierarchical porous metal-organic gels and derived materials: from fundamentals to potential applications.

    Wychowaniec, Jacek K / Saini, Haneesh / Scheibe, Błażej / Dubal, Deepak P / Schneemann, Andreas / Jayaramulu, Kolleboyina

    Chemical Society reviews

    2022  Volume 51, Issue 21, Page(s) 9068–9126

    Abstract: Metal-organic gels (MOGs) emerged as a novel class of functional soft materials in which the scaffolding framework is fabricated by metal-ligand coordination in combination with other supramolecular interactions (for example, hydrogen bonding or π-π ... ...

    Abstract Metal-organic gels (MOGs) emerged as a novel class of functional soft materials in which the scaffolding framework is fabricated by metal-ligand coordination in combination with other supramolecular interactions (for example, hydrogen bonding or π-π stacking). Through the combination of organic and inorganic (metal/metal-oxo clusters) building blocks, significant steps forward have been made in the development of new electrochemical sensors, superhydrophobic materials and ion storage devices, among others. These leaps forward are to some extend induced by the intrinsic hierarchical microporous/mesoporous pore structure of these metal-organic materials. Within this review we give an overview of recent developments of this growing field. First, we shed light onto the parallels to the well-established field of conventional gels and outline similarities and differences. Afterwards, we classify different types of MOGs according to their architectural/structural nature: (1) pristine MOGs, (2) hybrid MOGs, (3) crosslinking-based MOGs and (4) MOG-derived materials. Furthermore, we look at the different properties of MOGs and the requirements for the preparation of spatially patterned macro-structured MOGs by emerging additive manufacturing technologies. Moreover, different potential fields of application for MOGs and MOG derived materials are critically evaluated and potential improvements and pitfalls in comparison to traditional gel-based materials are given. Finally, a comprehensive outlook into future directions for the development of MOGs is provided.
    MeSH term(s) Porosity ; Gels/chemistry ; Metals/chemistry
    Chemical Substances Gels ; Metals
    Language English
    Publishing date 2022-10-31
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1472875-8
    ISSN 1460-4744 ; 0306-0012
    ISSN (online) 1460-4744
    ISSN 0306-0012
    DOI 10.1039/d2cs00585a
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  6. Article ; Online: Hydrophobicity and dielectric properties across an isostructural family of MOFs: a duet or a duel?

    Sorbara, Simona / Mukherjee, Soumya / Schneemann, Andreas / Fischer, Roland A / Macchi, Piero

    Chemical communications (Cambridge, England)

    2022  Volume 58, Issue 92, Page(s) 12823–12826

    Abstract: An isoreticular family of metal-organic frameworks is post-synthetically subjected to polymer grafting. Surface hydrophobicity analysis, adsorption experiments, and impedance spectroscopy characterise the water molecules adsorbed, both on the surface and ...

    Abstract An isoreticular family of metal-organic frameworks is post-synthetically subjected to polymer grafting. Surface hydrophobicity analysis, adsorption experiments, and impedance spectroscopy characterise the water molecules adsorbed, both on the surface and in the pores, while resolving how molecular mobility is impacted.
    Language English
    Publishing date 2022-11-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc04281a
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  7. Article ; Online: Quantification of gas-accessible microporosity in metal-organic framework glasses.

    Frentzel-Beyme, Louis / Kolodzeiski, Pascal / Weiß, Jan-Benedikt / Schneemann, Andreas / Henke, Sebastian

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 7750

    Abstract: Metal-organic framework (MOF) glasses are a new class of glass materials with immense potential for applications ranging from gas separation to optics and solid electrolytes. Due to the inherent difficulty to determine the atomistic structure of ... ...

    Abstract Metal-organic framework (MOF) glasses are a new class of glass materials with immense potential for applications ranging from gas separation to optics and solid electrolytes. Due to the inherent difficulty to determine the atomistic structure of amorphous glasses, the intrinsic structural porosity of MOF glasses is only poorly understood. Here, we investigate the porosity features (pore size and pore limiting diameter) of a series of prototypical MOF glass formers from the family of zeolitic imidazolate frameworks (ZIFs) and their corresponding glasses. CO
    Language English
    Publishing date 2022-12-14
    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/s41467-022-35372-5
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  8. Article: Lewis Acid Catalyzed Amide Bond Formation in Covalent Graphene-MOF Hybrids.

    Lo, Rabindranath / Pykal, Martin / Schneemann, Andreas / Zbořil, Radek / Fischer, Roland A / Jayaramulu, Kolleboyina / Otyepka, Michal

    The journal of physical chemistry. C, Nanomaterials and interfaces

    2023  Volume 127, Issue 31, Page(s) 15454–15460

    Abstract: Covalent hybrids of graphene and metal-organic frameworks (MOFs) hold immense potential in various technologies, particularly catalysis and energy applications, due to the advantageous combination of conductivity and porosity. The formation of an amide ... ...

    Abstract Covalent hybrids of graphene and metal-organic frameworks (MOFs) hold immense potential in various technologies, particularly catalysis and energy applications, due to the advantageous combination of conductivity and porosity. The formation of an amide bond between carboxylate-functionalized graphene acid (GA) and amine-functionalized UiO-66-NH
    Language English
    Publishing date 2023-06-29
    Publishing country United States
    Document type Journal Article
    ISSN 1932-7447
    ISSN 1932-7447
    DOI 10.1021/acs.jpcc.3c01821
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  9. Article ; Online: Fluorinated Benzimidazole-Linked Highly Conjugated Polymer Enabling Covalent Polysulfide Anchoring for Stable Sulfur Batteries.

    Haldar, Sattwick / Khan, Arafat H / De, Ankita / Reichmayr, Fanny / Morag, Ahiud / Yu, Minghao / Schneemann, Andreas / Kaskel, Stefan

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2023  Volume 30, Issue 2, Page(s) e202302779

    Abstract: Sulfur is one of the most abundant and economical elements in the p-block family and highly redox active, potentially utilizable as a charge-storing electrode with high theoretical capacities. However, its inherent good solubility in many electrolytes ... ...

    Abstract Sulfur is one of the most abundant and economical elements in the p-block family and highly redox active, potentially utilizable as a charge-storing electrode with high theoretical capacities. However, its inherent good solubility in many electrolytes inhibits its accessibility as an electrode material in typical metal-sulfur batteries. In this work, the synthetically designed fluorinated porous polymer, when treated with elemental sulfur through a well-known nucleophilic aromatic substitution mechanism (S
    Language English
    Publishing date 2023-11-13
    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.202302779
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  10. Article: The structural and functional role of RNA in icosahedral virus assembly.

    Schneemann, Anette

    Annual review of microbiology

    2006  Volume 60, Page(s) 51–67

    Abstract: Despite tremendous advances in high-resolution structure determination of virus particles, the organization of encapsidated genomes and their role during assembly are poorly understood. This article summarizes recent insights from structural, biochemical, ...

    Abstract Despite tremendous advances in high-resolution structure determination of virus particles, the organization of encapsidated genomes and their role during assembly are poorly understood. This article summarizes recent insights from structural, biochemical, and genetic analyses of icosahedral viruses that contain single-stranded, positive-sense RNA genomes. X-ray crystallography of several viruses in this category has provided tantalizing glimpses of portions of the packaged nucleic acid, contributing crucial information on how the genome might be folded within the virion. This information combined with theoretical considerations and data from molecular approaches suggests mechanisms by which coat proteins interact with genomic RNA to shape it into a conformation that is compatible with the geometry of the virion. It appears that RNA, in addition to its function as a repository for genetic information, plays an important structural role during assembly and can on occasion override the ability of the coat protein to form a particle with defined icosahedral symmetry.
    MeSH term(s) Models, Molecular ; Nodaviridae/physiology ; Nucleic Acid Conformation ; RNA, Viral/chemistry ; RNA, Viral/physiology ; Secoviridae/physiology ; Tobacco mosaic satellite virus/physiology ; Virion/ultrastructure ; Virus Assembly
    Chemical Substances RNA, Viral
    Language English
    Publishing date 2006
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 207931-8
    ISSN 0066-4227
    ISSN 0066-4227
    DOI 10.1146/annurev.micro.60.080805.142304
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