Article
Chemistry, Applied
N. Migliore, T. G. Van Kooten, G. Ruggeri, F. Picchioni, P. Raffa
Summary: This work reports the use of p,alpha-dimethylstyrene, possibly obtained from renewable sources, as a substitute for styrene in the synthesis of amphiphilic copolymers. A series of novel poly(p,alpha-dimethylstyrene-co-maleic anhydride) (SMA) copolymers was synthesized, characterized, and studied as potential polymeric surfactants. The results suggest that p,alpha-dimethylstyrene can be employed in copolymers with maleic anhydride, providing a valid alternative to SMA copolymers for various applications.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Beibei Wang, Bangqi Yin, Zhao Zhang, Yixuan Yin, Yang Yang, Haiqiao Wang, Thomas P. Russell, Shaowei Shi
Summary: By using the interactions between nanoparticles and polymeric ligands, nanoparticle surfactants can be generated at the liquid-liquid interface, increasing the binding energy. Through a simplified model, it is found that competitive ligands can reduce the binding energy, leading to the dissociation and disassembly of the surfactants at the interface and allowing the construction of responsive and reconfigurable all-liquid systems.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
IM. Tucker, A. Burley, R. E. Petkova, S. L. Hosking, J. R. P. Webster, P. X. Li, K. Ma, J. Doutch, J. Penfoldoo, R. K. Thomas
Summary: This study investigates the mixed structure of plant-derived surfactant saponins and nonionic surfactants using small angle neutron scattering. The results reveal a complex evolution in the self-assembled structure of the solution, including the transition from elongated micelle structure to micelle structure, and the formation of planar/micellar mixed phases.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Review
Polymer Science
Sagar Bag, Soumyadeep Ghosh, Soumya Paul, Md Ezaz Hasan Khan, Priyadarsi De
Summary: S-MI/MA alternating copolymers, known for their tunable molecular weight, narrow dispersity, and precise chain-end functionality, have recently been discovered to exhibit unprecedented emissive behavior, outperforming traditional fluorophores. They are easy to synthesize, utilize cheap starting materials, can be functionalized post-polymerization, exhibit aqueous solubility, and offer greater cell viability.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Polymer Science
Roman Schaller, Christian Hils, Matthias Karg, Holger Schmalz
Summary: This article introduces a unique method of preparing surface-compartmentalized micelles with a semi-crystalline stereocomplex core and a patch-like microphase separated corona, which shows potential applications in efficient emulsion stabilization and polymer blend compatibilization.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Review
Polymer Science
Marc Guerre, Gerald Lopez, Bruno Ameduri, Mona Semsarilar, Vincent Ladmiral
Summary: Fluoropolymers have remarkable properties such as high resistance to chemicals, UV, and heat, as well as ferroelectricity and piezoelectricity. The incorporation of fluorinated moieties can confer unique properties, leading to self-assembly in solution and original morphologies with rare properties. Advances in organic and polymer chemistry have allowed for the design of fluorinated copolymer architectures.
Article
Chemistry, Multidisciplinary
Pei-Yang Gu, Paul Y. Kim, Yu Chai, Paul D. Ashby, Qing-Feng Xu, Feng Liu, Qun Chen, Jian-Mei Lu, Thomas P. Russell
Summary: Understanding the dynamic processes during the printing of one liquid in a second immiscible liquid is crucial for exploiting all-liquid 3D architectures. This study demonstrates the interfacial assembly and transition of nanoparticle surfactants during all-liquid printing, by monitoring the formation of J-aggregates and their conversion to H-aggregates. The chromogenic changes of the aggregates provide a simple means for assessing the mechanical properties of the assemblies.
Article
Chemistry, Physical
I. M. Tucker, A. Burley, R. E. Petkova, S. L. Hosking, Jr P. Webster, P. X. Li, K. Ma, J. Doutch, J. Penfold, R. K. Thomas
Summary: Saponins are a class of surface active glycosides that can be extracted from various plant species. This study focuses on the Quillaja saponin and its mixtures with different synthetic surfactants, characterizing their micelle formation using small angle neutron scattering. The results show that Quillaja saponins form relatively small globular micelles with evolving aggregation numbers in mixtures with synthetic surfactants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Ersen Yilmaz
Summary: In this study, nonmiscible polyvinyl chloride (PVC) and polymethyl methacrylate (PMMA) polymers were made miscible by using MA-St-MMA terpolymer as a compatibilizer. The addition of the compatibilizer led to a single glass transition temperature (Tg) for the mixture and improved impact toughness.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ganhua Xie, Shipei Zhu, Paul Y. Y. Kim, Shubao Jiang, Qinpiao Yi, Pei Li, Zonglin Chu, Brett A. A. Helms, Thomas P. P. Russell
Summary: Dynamic covalent bonding can relax stresses in a network. The strength of ligand-nanoparticle bonding at the interface of two immiscible liquids affects jammed assemblies of nanoparticle surfactants. Compression-induced overcrowding breaks the ligand-nanoparticle bonding, resulting in nanoparticle desorption from the interface and relaxation of the assemblies into another jammed state. The relaxation of wrinkles leads to the formation of giant vesicular and multivesicular structures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Siva Ponnupandian, Prantik Mondal, Thomas Becker, Richard Hoogenboom, Andrew B. Lowe, Nikhil K. Singha
Summary: This study reports the preparation of a tailor-made copolymer of FMA and TFEMA via RAFT polymerization, followed by modification of the furfuryl groups through DA reaction using different POSS-M contents to yield hydrophobic fluorinated copolymers with improved surface hydrophobicity and self-healing ability. The modified DA fluoropolymers showed a significant increase in water contact angle from approximately 101 degrees to 135 degrees, making them promising materials for specialty paints and coatings.
Article
Chemistry, Physical
Daniil M. Kovalev, Vitaly S. Kravchenko, Igor I. Potemkin
Summary: Computer simulations were used to study the effect of adding small portions of oil to aqueous solutions of surfactant self-assemblies with different morphologies. The uptake of oil by spherical micelles resulted in swelling, while cylindrical micelles underwent a transition to spherical micelles due to Rayleigh instability. Vesicular and lamellar solutions exhibited unique behavior, with vesicles forming nanofoam-like structures and lamellae bending and binding with neighboring ones. The viscosity of vesicular and lamellar solutions increased upon the addition of oil, in contrast to the dramatic decrease in viscosity observed in cylindrical micelles.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
R. K. Thomas, J. Penfold
Summary: Understanding and optimizing the mixing properties of surfactants at interfaces and in bulk solution is crucial for their diverse applications in industry, technology, biology, and households. The use of neutron reflectivity (NR) and small angle neutron scattering (SANS) with isotopic substitution has enabled quantitative analysis and understanding of surfactant mixing at the air-water interface and in self-assembled aggregates or micelles in solution. This approach provides important insights into the thermodynamic properties and trends of mixed surfactants, which are not readily obtainable from analyzing data solely based on the variation in critical micelle concentration (cmc) alone.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Applied
Tao Xue, Caili Yu, Zhongqun Zhou, Faai Zhang
Summary: A series of styrene-maleimide (SMI) copolymers with different functionality were successfully synthesized as amphiphilic dispersants for nano-SiO2 in water. Results showed that the presence of SMI dispersants enhanced the steric hindrance and electrostatic repulsion between SiO2 nanoparticles, improving their dispersity and stability in water.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2023)
Review
Polymer Science
Lin-Lin Xiao, Xu Zhou, Kan Yue, Zi-Hao Guo
Summary: Conjugated block copolymers (cBCPs) are promising materials with high conductivity and morphological versatility, making the study of their self-assembly behaviors crucial for enhancing device performance.
Article
Biochemistry & Molecular Biology
Kevin Janson, Jennifer Zierath, Fotis L. Kyrilis, Dmitry A. Semchonok, Farzad Hamdi, Ioannis Skalidis, Adrian H. Kopf, Manabendra Das, Cenek Kolar, Marie Rasche, Carolyn Vargas, Sandro Keller, Panagiotis L. Kastritis, Annette Meister
Summary: Certain amphiphilic copolymers are best suited to solubilize negatively charged membranes at high ionic strengths even at low polymer/lipid ratios, forming lipid-bilayer nanodiscs.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2021)
Article
Biochemistry & Molecular Biology
Matthias Hoffmann, Jana Eisermann, Florian Arndt Schoeffmann, Manabendra Das, Carolyn Vargas, Sandro Keller, Dariush Hinderberger
Summary: The study compared the lipid properties of liposomes and polymer-encapsulated nanodiscs using DSC and CW EPR spectroscopy. The results indicated that all polymers broadened the main melting transition of DMPC, changed water accessibility within the lipid bilayer, and exerted additional constraints onto the lipids. The rotational mobility of spin-labeled lipids decreased with all polymers, with DIBMA showing less restraints possibly due to aliphatic side chains. The choice of solubilizing polymer is crucial for forming lipid nanodiscs for future research on lipid membranes and membrane proteins.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2021)
Article
Chemistry, Multidisciplinary
Bartholomaus Danielczak, Marie Rasche, Julia Lenz, Eugenio Perez Patallo, Sophie Weyrauch, Florian Mahler, Michael Tope Agbadaola, Annette Meister, Jonathan Oyebamiji Babalola, Carolyn Vargas, Cenek Kolar, Sandro Keller
Summary: Glyco-DIBMA, a novel glycopolymer, demonstrates enhanced efficiency in solubilizing lipid vesicles to form nanodiscs under near-physiological conditions, maintaining a bilayer structure and enabling rapid lipid exchange. Experimental results have shown the superior performance of Glyco-DIBMA in extracting cellular membrane proteins and analytical applications.
Article
Biochemistry & Molecular Biology
Paulina Piller, Heimo Wolinski, Robert A. Cordfunke, Jan Wouter Drijfhout, Sandro Keller, Karl Lohner, Nermina Malanovic
Summary: The development of antimicrobial agents against multidrug-resistant bacteria is crucial in the medical field. This study found that SAAP-148, an antimicrobial peptide, showed higher efficiency in killing bacteria and had stronger effects on membranes at both cellular and molecular levels compared to OP-145.
Article
Chemistry, Multidisciplinary
Hyun Sung Lee, Manabendra Das, Florian Mahler, Waqar Ahmed, Haoqing Wang, Jonas S. Mortensen, Parameswaran Hariharan, Lubna Ghani, Bernadette Byrne, Lan Guan, Claus J. Loland, Sandro Keller, Pil Seok Chae
Summary: The novel detergents based on 3,4-bis(hydroxymethyl)hexane-1,6-diol-based maltosides show significantly improved properties in stabilizing membrane proteins, particularly large eukaryotic membrane proteins. These detergents provide a useful guideline for designing novel detergents for membrane-protein research.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Plant Sciences
Tanja Jeblick, Thomas Leisen, Christina E. Steidele, Isabell Albert, Jonas Mueller, Sabrina Kaiser, Florian Mahler, Frederik Sommer, Sandro Keller, Ralph Hueckelhoven, Matthias Hahn, David Scheuring
Summary: The secreted Botrytis protein hypersensitive response inducing protein 1 activates plant defense to kill plant cells. According to their lifestyle, plant pathogens are divided into biotrophic and necrotrophic organisms. However, the precise role of these proteins during infection is unknown.
Article
Chemistry, Multidisciplinary
David Glueck, Anne Grethen, Manabendra Das, Ogochukwu Patricia Mmeka, Eugenio Perez Patallo, Annette Meister, Ritu Rajender, Stefan Kins, Markus Raeschle, Julian Victor, Ci Chu, Manuel Etzkorn, Zoe Koeck, Frank Bernhard, Jonathan Oyebamiji Babalola, Carolyn Vargas, Sandro Keller
Summary: Membrane proteins can be examined in near-native lipid-bilayer environments with the use of polymer-encapsulated nanodiscs. The creation of electroneutral nanodiscs enables new insights into protein-lipid interactions.
Article
Chemistry, Analytical
Jasmin Baron, Lena Bauernhofer, Sean R. A. Devenish, Sebastian Fiedler, Alison Ilsley, Sabrina Riedl, Dagmar Zweytick, David Glueck, Ariane Pessentheiner, Gregory Durand, Sandro Keller
Summary: Microfluidic diffusional sizing (MDS) is a method for determining the size and interactions of biomolecules and nanoparticles. Researchers have introduced fluorescent universal lipid labeling for MDS (FULL-MDS), which can determine particle size in unpurified samples. FULL-MDS is not only suitable for cell extracts but also faster, cheaper, and simpler than existing labeling schemes for synthetic nanodiscs.
ANALYTICAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Marine Soulie, Anais Deletraz, Moheddine Wehbie, Florian Mahler, Ilham Bouchemal, Aline Le Roy, Isabelle Petit-Hartlein, Sandro Keller, Annette Meister, Eva Pebay-Peyroula, Cecile Breyton, Christine Ebel, Gregory Durand
Summary: We synthesized zwitterionic sulfobetaine (SB) and dimethylamine oxide (AO) detergents with perfluorohexyl and perfluoropentyl groups and evaluated their properties. The critical micellar concentrations (CMCs) of these detergents were measured in the millimolar range. The morphologies of the aggregates were characterized, and it was found that the perfluoropentyl derivatives formed smaller micelles compared to the perfluorohexyl derivatives. The SB detergents showed superior performance in solubilizing lipid vesicles and stabilizing membrane proteins.
Article
Biochemistry & Molecular Biology
Kevin Janson, Fotis L. Kyrilis, Christian Tueting, Marie Alfes, Manabendra Das, Toni K. Trager, Carla Schmidt, Farzad Hamdi, Carolyn Vargas, Sandro Keller, Annette Meister, Panagiotis L. Kastritis
Summary: New technologies for purifying membrane-bound protein complexes in combination with cryo-electron microscopy have allowed the exploration of complexes under native conditions. The use of polymer-encapsulated nanodiscs enables the study of membrane proteins while retaining protein-protein and protein-lipid interactions. This study demonstrates that combining biochemical enrichment protocols with polymer-based nanodiscs improves the quality of recovered endogenous membrane-protein complexes, providing unprecedented opportunities for a deeper understanding of eukaryotic membrane proteomes.
Article
Biochemistry & Molecular Biology
Loretta Eggenreich, Carolyn Vargas, Cenek Kolar, Sandro Keller
Summary: Polymer-encapsulated nanodiscs allow the study of membrane proteins in a natural lipid-bilayer environment with the ability to exchange lipids. Electroneutral nanodisc-forming polymers have been introduced to avoid interference with protein-lipid interactions and analysis techniques. In this study, time-resolved Forster resonance energy transfer was used to investigate lipid exchange among nanodiscs formed by the electroneutral polymer Sulfo-DIBMA. The presence of monovalent and divalent cations did not influence lipid exchange among Sulfo-DIBMA nanodiscs, demonstrating their robustness against varying ion concentrations.
BIOLOGICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Nadine Angerer, Paulina Piller, Enrico F. Semeraro, Sandro Keller, Georg Pabst
Summary: Detergents are important for extracting membrane proteins, and this research investigated the solubilization of multi-component lipid membranes using a commonly used detergent. The results showed that the composition complexity of the lipids affects the solubilization behavior of the membranes.
BIOPHYSICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Alessandra Luchini, Julia Lenz, Andreas Haahr Larsen, Sandro Keller
Summary: Researchers have introduced new co-polymers to produce polymer-lipid particles with nanodisc structure, which can stabilize membrane proteins and allow their characterization. These particles can also be used to directly extract membrane proteins from native membranes. The size and shape of the particles can be controlled by adjusting the polymer/lipid ratio, making them suitable for studying different membrane proteins.
Article
Polymer Science
Valentin Monjal, Alexis Moreno, David Glueck, Sandro Keller, Pierre Guillet, Gregory Durand
Summary: In this study, a series of amphiphilic methacrylate copolymers were synthesized. By varying the monomer ratio, membrane proteins were extracted and provided with a stabilizing environment.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Multidisciplinary Sciences
Paulina Piller, Enrico F. Semeraro, Gerald N. Rechberger, Sandro Keller, Georg Pabst
Summary: The activity of integral membrane proteins is influenced by the properties of the lipid matrix. In this study, the researchers investigated the effect of transbilayer asymmetry on the activity of the membrane-embedded enzyme OmpLA. They found that increasing membrane asymmetry resulted in a decrease in the enzyme's activity. This study highlights the importance of membrane asymmetry in controlling membrane-protein activity.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.