Article
Materials Science, Multidisciplinary
Hyunchul Kim, Seonyoung Jo, Taek Seung Lee
Summary: Visible-light-driven composite photocatalysts were fabricated by chemically bound conjugated polymers (CPs) on a TiO2 surface to enhance photocatalytic efficiency and stability, as well as modify the hydrophilicity of the photocatalyst's surface for efficient reduction and oxidation reactions in water and organic solvents.
MATERIALS & DESIGN
(2021)
Article
Physics, Fluids & Plasmas
E. J. Janse van Rensburg
Summary: This study estimates the surface entropic exponents of half-space lattice stars using numerical methods, verifying exact values in square and cubic half-lattices and testing relations for stars with different numbers of surface loops.
Review
Chemistry, Multidisciplinary
Camden C. Cutright, Jacob L. Harris, Srivatsan Ramesh, Saad A. Khan, Jan Genzer, Stefano Menegatti
Summary: This study provides a comprehensive survey of microgel-coated materials and their functional behavior, highlighting the complex interplay between the physicochemical and mechanical properties of the microgels and the chemical and morphological features of substrates. Through the lens of multiple scales, it explores how design parameters work together to deliver functionality to composite systems, resulting in measurable effects across molecular, micro, and macro levels.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Nico Kummer, Luc Huguenin-Elie, Adrian Zeller, Yashoda Chandorkar, Jean Schoeller, Flavia Zuber, Qun Ren, Ashutosh Sinha, Kevin De France, Peter Fischer, Silvia Campioni, Gustav Nystrom
Summary: Amyloid fibrils made from hen egg white lysozyme have broad-spectrum antimicrobial activity and can be used as an alternative to small-molecule antibiotics. The foam films formed by these amyloid fibrils, stabilized by unconverted peptides, can be deposited as a coating with antimicrobial properties. This coating method offers a continuous production alternative and has potential applications in the biomedical sector as wound dressings.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Nico Kummer, Luc Huguenin-Elie, Adrian Zeller, Yashoda Chandorkar, Jean Schoeller, Flavia Zuber, Qun Ren, Ashutosh Sinha, Kevin De France, Peter Fischer, Silvia Campioni, Gustav Nystrom
Summary: Amyloid fibrils made from hen egg white lysozyme can be used to create 2D foam films with broad-spectrum antimicrobial properties, offering a potential alternative to small-molecule antibiotics. These films can be deposited on various substrates, creating a homogenous coating layer with antimicrobial effects against clinically relevant pathogens. This method presents a new approach for continuous production and could be used in the biomedical sector for wound dressings.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Organic
Lijun Mao, Manfei Zhou, Yan-Fei Niu, Xiao-Li Zhao, Xueliang Shi
Summary: The synthesis of a series of fully conjugated macrocycles M-n (n=4-7) containing N-(3,5-di-tert-butyl-4-methoxyphenyl) substituted carbazole (Cz-Ar) was successful. The aryl carbazole and macrocycle M-4 showed good oxidation properties, and were able to form stable stoichiometric complexes with fullerenes C60 and C70.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Ana Sanchez-Grande, Jose I. Urgel, Ines Garcia-Benito, Jose Santos, Kalyan Biswas, Koen Lauwaet, Jose M. Gallego, Johanna Rosen, Rodolfo Miranda, Jonas Bjork, Nazario Martin, David Ecija
Summary: On-surface synthesis is a powerful strategy for designing conjugated polymers previously unachievable with conventional solution chemistry. In this study, a precursor containing N is synthesized and used for homocoupling reactions on metallic supports. The choice of substrate determines the reaction mechanism, with Ag(111) leading to the formation of a N-containing coordination polymer followed by ladderization, while Au(111) directly forms the ladder polymer. The results highlight the selective role of the metallic support in the synthesis of N-containing conjugated polymers.
Article
Chemistry, Physical
Boxuan Yu, Lei Zhang, Gang Ye, Qingzhi Liu, Jiongli Li, Xudong Wang, Jing Chen, Shengming Xu, Shengqian Ma
Summary: This study reports a novel de novo synthesis of bifunctional conjugated microporous polymers with coordination behavior to uranium. The introduction of ortho-substituted amino functionalities enhances the affinity to uranyl ions and increases the adsorption capacity by almost 70%. XPS analysis and DFT calculation suggest a dominant role of oxime ligands in coordination with uranyl ions and show the synergistic engagement of amino functionalities in promoting coordination with uranyl ions.
Article
Biophysics
Frank Heinrich, Que N. Van, Frantz Jean-Francois, Andrew G. Stephen, Mathias Loesche
Summary: Research findings show that KRAS4B approximates an entropic ensemble of configurations in specific membrane environments, with interactions between the protein and lipid membrane having minimal impact on its shape. This challenges previous understanding of KRAS signaling and proposes a new model where the protein samples in a uniform manner and binds to effector proteins.
BIOPHYSICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Hikaru Nagata, Makoto Yoshimoto, Peter Walde
Summary: This study developed a method to covalently attach water-soluble enzyme molecules to the surface of preformed liposomes using bis-aryl hydrazone bond. The liposome-BAH-BCA conjugates obtained showed comparable catalytic activity and storage stability to free BCA. Around 1200 BCA molecules were attached to each liposome with an average diameter of 138 nm.
Article
Chemistry, Multidisciplinary
Shilpi Jaiswal, Arkaprabha Giri, Dipendranath Mandal, Madhurima Sarkar, Abhijit Patra
Summary: A photocatalyst that combines plasmonic and upconversion nanoparticles with a conjugated porous organic polymer has been designed and synthesized. This photocatalyst, named UC-POP-Au, exhibits enhanced light absorption and photocatalytic activity for the oxidation of thioethers, including mustard gas simulant, due to the efficient generation and migration of charge carriers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Polymer Science
Xiaozhou Ji, Lei Fang
Summary: Pi-Conjugated polymers composed of quinoidal or proquinoidal building blocks have unique structural features and properties, making them an intriguing class of macromolecules. Research interest in these polymers has been growing due to their distinct characteristics such as open-shell electronic configurations and delocalization of polarons. Investigations on the influences of the quinoidal character on optical, electronic, and magnetic properties have demonstrated great potential of these polymers in diverse application fields, with challenges and outlook discussed in this review.
Article
Engineering, Biomedical
Gunnur Onak, Utku Kursat Ercan, Ozan Karaman
Summary: The study evaluated the antimicrobial effects of AMP-conjugated NFs on P. aeruginosa and MRSA, and found that these NFs did not inhibit keratinocyte proliferation. These results suggest that AMP-conjugated NFs, with multiple biological activities, may be a promising candidate as wound dressing materials.
BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Negar Kazerouni, Elizabeth L. Melenbrink, Pratyusha Das, Barry C. Thompson
Summary: This study incorporated a series of new ductile semirandom donor-acceptor copolymers into ternary blend organic solar cells to investigate their impact on the solar cell performance. The results showed that increasing the CBS polymer content appropriately can enhance the hole mobility of the ternary active layers, leading to improved solar cell performance.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Physics, Multidisciplinary
Bilal Canturk, Zafer Gedik
Summary: The paper investigates the optimal upper bound of entropic uncertainty relation for N Mutually Unbiased Bases (MUBs) and provides a quantitative criterion for the extendibility of MUBs based on entropic certainty relation. The results are also applied to the information exclusion relation of (d+1) observables conditioned with a classical memory to detect the compatibility of the observables.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)