Article
Chemistry, Physical
Asep Sugih Nugraha, Minsu Han, Aditya Ashok, Yunqing Kang, Jeonghun Kim, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Yusuke Yamauchi
Summary: In this study, a novel one-pot chemical reduction method was reported to synthesize mesoporous AuAg nanoparticles. The composition of Au and Ag in the final nanoparticles can be precisely controlled by adjusting the precursor composition. The resulting nanoparticles are characterized by uniform size and well-ordered mesoporous structure. Mesoporous AuAg nanoparticles exhibit remarkable electrocatalytic activity in the electrooxidation of small molecules, surpassing that of mesoporous Au nanoparticles.
Article
Materials Science, Multidisciplinary
Ksh Devarani Devi, Aditya Sharma, Sunil Ojha, Jai Parkash, Ankush Vij, Ram K. Sharma, Fouran Singh
Summary: In this study, bimetallic AuAg nanoparticles were successfully synthesized and characterized using various analytical techniques. The structure and surface plasmon resonance properties of the nanoparticles were found to be significantly altered after annealing.
Article
Chemistry, Multidisciplinary
Zikang Li, Mei-Tung Lau, Jiahua Li, Feng Qiu, Zhengong Meng, Wai-Yeung Wong
Summary: A new bimetallic complex with a palladium core containing a 4'-ferrocenyl-(2,2':6',2''-terpyridine) and a polyethylene glycol-based pyridine ligand is applied for the first time in seeded-growth self-assembled supramolecular polymerization, resulting in nanoribbons with controllable lengths following a first-order reaction kinetics.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Chao Lin, Pengju Pan, Guorong Shan, Miao Du
Summary: Poly(ethylene glycol)-b-poly(epsilon-caprolactone) diblock copolymers (PEG-b-PCL) with predesigned hydrophilic/hydrophobic block length ratios were synthesized and self-assembled into micelles for emulsifying medium-chain triglycerides with an aqueous phase. The relationship between the wettability of the copolymer micelles and their emulsification properties was proved, and various Pickering emulsions, including double-W/O/W emulsions, were controllably prepared through one-step homogenization. The double microstructure of W/O/W Pickering emulsion was demonstrated to be highly stable during long-term storage.
Article
Engineering, Chemical
Shichao Wang, Ya Xiong, Xiaohu Wang, Wendi Liu, Jian Tian, Nannan Wu, Hongzhi Cui, Xinzhen Wang
Summary: Surface modification of metal oxides with bimetallic nanoparticles is an appealing approach to enhance gas sensing properties. In this study, SnO2 hollow microspheres with wrinkle surface were synthesized and decorated with Au, Ag, and bimetallic AuAg nanoparticles. Gas test results showed that SnO2-AuAg exhibited higher response and shorter response/recovery time compared to SnO2-Au, SnO2-Ag, and pure SnO2. Furthermore, it demonstrated excellent long-term stability. The enhanced gas sensing performance was attributed to the morphological and structural composition, electronic and chemical sensitizations of Au and Ag, and the synergistic catalysis effect of AuAg bimetallic nanoparticles.
Review
Chemistry, Multidisciplinary
Yuhao Liu, Xueqian Chen, Xiaoting Liu, Weijiang Guan, Chao Lu
Summary: Aggregation-induced emission (AIE)-active micelles are fluorescent functional materials that exhibit enhanced emissions in the aggregated surfactant state. They have received significant interest due to their excellent fluorescence efficiency, processability, and solubility. This review provides an overview of the synthesis, characterization, and applications of AIE-active micelles, with a focus on the most recent developments, and anticipates the development of innovative and fascinating AIE-active micelle materials in the future.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Applied
Xiong Liu, Fangfei Liu
Summary: A cellulose-based hydrogel is developed to load bimetallic nanoparticles for catalytic reactions. The resulting bimetallic nanocomposite hydrogels exhibit excellent recyclability and applicability for various substrates, showing promising prospects in the catalytic field.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Vitalii Tkachenko, Philippe Kunemann, Jean Pierre Malval, Tatiana Petithory, Laurent Pieuchot, Loic Vidal, Abraham Chemtob
Summary: Self-assembled block copolymer nanoparticles with high stability and uniformity were successfully prepared using photomediated RAFT polymerization-induced self-assembly method. The nanoparticles show potential for bioimaging applications due to their high stability and high yield.
Article
Polymer Science
Abdel Wahab Mouhamad, Tamara Elzein, Nadine Barroca-Aubry, Eric Simoni, Nael Berri, Francois Brisset, Vincent Huc, Philippe Roger
Summary: The self-assembly of amphiphilic polystyrene-b-poly(4-vinyldipicolinic acid) diblock copolymers in aqueous solution results in the formation of core-shell nanoparticles. These nanoparticles have a narrow size distribution and high colloidal stability. The critical aggregation concentration of the nanoparticles was determined using fluorimetry and dynamic light scattering. The pH-responsive micelles are stable under suitable conditions.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Marjorie Yon, Laure Gibot, Stephane Gineste, Pascale Laborie, Christian Bijani, Christophe Mingotaud, Olivier Coutelier, Franck Desmoulin, Carine Pestourie, Mathias Destarac, Diana Ciuculescu-Pradines, Jean-Daniel Marty
Summary: Due to the potential life-threatening side effects caused by specific antibodies to poly(ethylene glycol) (PEG), it is necessary to develop alternatives to PEGylated copolymers for treatment and diagnostic methods. A new approach involves block copolymers containing a poly(N-vinyl-2-pyrrolidone) (PVP) segment as vectors without PEG block. A synthesized poly(acrylic acid)-block-poly(N-vinyl-2-pyrrolidone) (PAA-b-PVP) copolymer, when combined with lanthanide cations (Gd3+, Eu3+, Y3+), forms stable hybrid polyion complexes that prevent lanthanide cytotoxicity and enhance in vitro cell penetration, resulting in enhanced T-1 MRI contrast when administered to mice intravenously without leaching of gadolinium ions.
Article
Biochemistry & Molecular Biology
Sergio Acosta, Leander Poocza, Luis Quintanilla-Sierra, Jose Carlos Rodriguez-Cabello
Summary: This study investigated the effect of charge density on the self-assembly of intrinsically disordered protein polymers (IDPPs), revealing that the hydrophilic block composition strongly influences hierarchical assembly and enables the production of new molecular architectures with dynamics governing the liquid-gel transition. The importance of electrostatic repulsion for the hierarchical assembly of IDPPs was highlighted, providing insights into the manufacture of supramolecular protein-based materials.
Article
Green & Sustainable Science & Technology
Anusha Dsouza, M. P. Shilpa, S. C. Gurumurthy, B. S. Nagaraja, Shridhar Mundinamani, Koduri Ramam, Murali Gedda, M. S. Murari
Summary: Bimetallic nanoparticles (BNPs) exhibit enhanced optical, electrical, thermal, and catalytic properties due to the synergistic effects of monometals present in them. CuAg and AuAg BNPs synthesized in this study showed optimal performance at pH 9.4 and 6.39 respectively, with potential applications in photocatalysis and thermal conductivity.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Polymer Science
Fang Yin, Pascale Laborie, Barbara Lonetti, Yannick Coppel, Nancy Lauth-de Viguerie, Jean-Daniel Marty, Stephane Gineste
Summary: Doubly thermo-and pH-responsive PNIPAM-b-PDEAEAM polymers were synthesized by RAFT polymerization. The properties of these polymers and corresponding homopolymers in solution depend on pH and the protonation degree of the diethylamino moiety. The behavior of the polymers is also influenced by the nature of the polymer chain ends. At pH 10, both PNIPAM and PDEAEAM blocks contribute to phase transition and form stable spherical nanoobjects. At pH 4, PNIPAM-b-PDEAEAM with longer PDEAEAM length exhibits a two-step thermoresponsive behavior and forms large aggregates with a positively charged shell.
Article
Chemistry, Physical
Clare R. Rees-Zimmerman, Derek H. H. Chan, Steven P. Armes, Alexander F. Routh
Summary: This study observes the diffusion behavior of two types of charged colloidal particles (silica particles and diblock copolymer particles) under concentration gradient conditions, and finds that the concentration of the particles scales approximately with the square root of time. These observations are consistent with a recently developed theory that explains diffusiophoretic motion driven by multivalent ions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Haohui Huo, Jie Liu, Senthil Kannan, Long Chen, Yimin Zhao, Lei Zhang, Gang Chang, Qilu Zhang, Feng Liu
Summary: This study presents the first example of protein-like multicompartment nanoparticles formed via self-assembly of a specifically designed 21-arm star polymer, PEG(PAA-b-PS)(20). The morphology of the MCNs is determined by the volume ratio of PS to PAA, and unique string structures composed of one-dimensional alignment of single-star polymers were observed for the first time. A new mechanism for the assembly of star polymers was proposed based on investigations under different conditions, suggesting potential applications in drug delivery and catalysis.
Article
Chemistry, Physical
Stefan Wild, Marcus Baeumer, Thomas Risse
Summary: Heterogeneous catalysts based on gold have shown high activities and selectivities in oxidation reactions. Nanoporous gold (npAu), as an alternative catalyst, exhibits similarly good catalytic performance, despite having a larger characteristic structural length. A reliable activation procedure has been discovered to achieve high conversion levels with short annealing steps, which improves the catalytic activity of npAu.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Stefan Wild, Christoph Mahr, Andreas Rosenauer, Thomas Risse, Sergey Vasenkov, Marcus Baeumer
Summary: This article introduces new perspectives to characterize and understand the interplay of mass transport and catalytic processes in gas phase metal catalysts. The study focuses on nanoporous gold and uses PFG NMR measurements to evaluate gas diffusivities and STEM tomography to analyze the pore structure. The quantitative knowledge about diffusion coefficients allows for separating mass transport contributions from measured reaction kinetics and determining the kinetic rate constant of the catalytic surface reaction. The study demonstrates the potential of novel porous materials combined with modern techniques for a comprehensive understanding of catalytic processes.
Article
Chemistry, Physical
Daniel Loof, Rouven von Elling, Anmona Shabnam Pranti, Walter Lang, Marcus Baeumer, Volkmar Zielasek
Summary: The thermal stability of microporous networks of Pt nanoparticles interlinked by p-Phenylenediamine (PDA) was studied using temperature-programmed desorption spectroscopy (TPD) and transmission electron microscopy (TEM). The decomposition of PDA was found to be mainly through cleavage of the C-N bonds, assisted by dehydrogenation reactions of PDA. The Pt nanoparticles catalytically promoted the decomposition of PDA links, with the thermal stability of PDA strongly correlating with the number of bonds formed by the amino groups of PDA with Pt. The results have important implications for the application of PDA-linked Pt nanoparticles as heterogeneous catalysts in hydrogen gas microsensors.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Biochemistry & Molecular Biology
Arina G. Kicheeva, Ekaterina S. Sushko, Lyubov S. Bondarenko, Kamila A. Kydralieva, Denis A. Pankratov, Nataliya S. Tropskaya, Artur A. Dzeranov, Gulzhian I. Dzhardimalieva, Mauro Zarrelli, Nadezhda S. Kudryasheva
Summary: The current study investigates the role of reactive oxygen species (ROS) in the bioeffects of different types of magnetite nanoparticles (MNPs) - bare (Fe3O4), humic acids (Fe3O4-Ha), and 3-aminopropyltriethoxysilane (Fe3O4-APTES) modified MNPs. The study found that Fe3O4-HA MNPs had the lowest amount of Fe2+ ions, while Fe3O4-APTES MNPs had the highest amount of Fe2+ ions. Bioluminescent cellular and enzymatic assays were used to monitor the toxicity and antioxidant activity of the MNPs. The results showed that the modified MNPs had toxic effects at higher concentrations (>10(-2) g/L) and stimulated ROS production by bacteria in a wide concentration range (10(-15)-1 g/L).
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Analytical
Igor E. Uflyand, Victoria E. Burlakova, Ekaterina G. Drogan, Igor Yu. Zabiyaka, Kamila A. Kydralieva, Gulsara D. Kugabaeva, Gulzhian I. Dzhardimalieva
Summary: This study introduces the synthesis of FeCo and FeNi nanoalloy particles encapsulated in a nitrogen-doped carbonized shell through thermolysis of polyacrylamide complexes. The unique architecture provides high chemical and thermal stability, with average crystallite sizes of 10nm and 12nm for FeCo and FeNi nanoparticles, respectively. These nanocomposites have been tested as antifriction and antiwear additives in lubricating oils.
Article
Chemistry, Inorganic & Nuclear
Artur Dzeranov, Lyubov Bondarenko, Denis Pankratov, Gulzhian Dzhardimalieva, Sharipa Jorobekova, Daniel Saman, Kamila Kydralieva
Summary: The use of iron oxide nanoparticles, particularly for commercial purposes, requires strict preservation of their phase composition. The choice of nanoparticle modifier and modification conditions is crucial due to their sensitivity to oxygen under real conditions. This study investigated the phase composition changes of magnetite nanoparticles after modification and oxidation, and found that the nonstoichiometric nature of the nanoparticles increased. Furthermore, both XRD and Mössbauer spectroscopy provided valuable information about the ionic composition and distribution of iron ions in the nanoparticles.
Review
Chemistry, Multidisciplinary
Gunther Wittstock, Marcus Baeumer, Wilke Dononelli, Thorsten Kluener, Lukas Luehrs, Christoph Mahr, Lyudmila Moskaleva, Mehtap Oezaslan, Thomas Risse, Andreas Rosenauer, Anne Staubitz, Joerg Weissmueller, Arne Wittstock
Summary: Nanoporous gold (NPG) is a nanoscale material with a network of metallic struts and interconnected pores formed from gold alloys through oxidative dissolution. It exhibits good catalytic activity, particularly in the aerobic partial oxidation of methanol. This review discusses methods to control NPG morphology and composition, explores mechanistic understanding from quantum chemical studies, and highlights best practices for material preparation and characterization.
Article
Polymer Science
Evgeny S. Sorin, Rose K. Baimuratova, Igor E. Uflyand, Evgeniya O. Perepelitsina, Denis V. Anokhin, Dmitry A. Ivanov, Gulzhian I. Dzhardimalieva
Summary: This paper presents a successful approach to obtain self-healing copolymer films by incorporating a metal-containing complex into the polymer chain. The resulting films show excellent mechanical performance and self-healing properties under different conditions.
Article
Chemistry, Multidisciplinary
Yurii S. S. Bukichev, Lyudmila M. M. Bogdanova, Valentina A. A. Lesnichaya, Nikita V. V. Chukanov, Nina D. D. Golubeva, Gulzhian I. I. Dzhardimalieva
Summary: In this study, TiO2/epoxy nanocomposites with different contents and sizes of nanoparticles were prepared using stepwise curing and ultrasonic dispersion techniques. The resulting nanocomposites were characterized by various analytical methods. The results showed that by controlling the curing mode, ultrasonic dispersion, and the content and dispersity of TiO2 nanoparticles, epoxy nanocomposites with improved mechanical properties and impact strength can be obtained.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Analytical
Marina O. Gorbunova, Igor E. Uflyand, Vladimir A. Zhinzhilo, Anastasiya O. Zarubina, Tatiana S. Kolesnikova, Maxim G. Spirin, Gulzhian I. Dzhardimalieva
Summary: Metal-containing nanocomposites have attracted attention in recent years. This study focused on the preparation and application of silver-containing nanocomposites derived from silver fumarate for reactive indicator papers (RIPs). The study explored the optical properties of the nanocomposites and developed a method for determining chloride ions using the color change of RIPs interacting with chlorine vapor. The technique showed promising results in the analysis of natural waters, pharmaceuticals, and food products.
Article
Chemistry, Inorganic & Nuclear
Gulsara D. Kugabaeva, Kamila A. Kydralieva, Lyubov S. Bondarenko, Rose K. Baimuratova, Dmitry Yu. Karpenkov, Ekaterina A. Golovkova, Pavel N. Degtyarenko, Nina D. Golubeva, Igor E. Uflyand, Gulzhian I. Dzhardimalieva
Summary: This paper proposes an original approach to prepare FeCo- and FeNi/N-doped carbon nanocomposites, and studies their phase composition, structure, microstructure, and magnetic characteristics. It is found that the FeCo/N-C nanocomposites exhibit exchange bias behavior, while the FeNi/N-C nanocomposites are ferromagnetically ordered.
Article
Chemistry, Physical
E. V. Rabenok, G. F. Novikov, L. M. Bogdanova, Yu. S. Bukichev, G. I. Dzhardimalieva
Summary: A study is conducted on how TiO2 nanoparticles affect the temperature dependence of the direct current conductivity in epoxy polymers. The value of the conductivity is determined by analyzing the frequency dependence of the complex permittivity in a specific range of frequencies. The temperature dependence of the conductivity shows two distinctive regions: the Vogel-Fulcher-Tammann dependence above the glass transition temperature, and the Arrhenius dependence below it, indicating a change in conduction mechanism after the freezing of ionic mobility.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Shikun Li, Okikiola Olaniyan, Lenard L. Carroll, Marcus Baeumer, Lyudmila Moskaleva
Summary: The rich surface chemistry of gold at the nanoscale has made it an important catalyst for low-temperature applications. Recent studies suggest that self-organized structures formed by chemisorbed O atoms on the surface of gold catalysts may play a role in their catalytic activity and/or deactivation. In this study, the reactivity of a double O chain running along a step on a Au(221) surface with oxygen vacancies was investigated. Results show that O-2 adsorbs stronger and its dissociation barrier reduces significantly on the double oxygen vacancy compared to the regular Au(221) surface. Calculations suggest that CO oxidation should occur more efficiently on the double O vacancy due to stronger adsorption of O-2 and a low activation barrier for O-2 + CO surface reaction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
V. A. Zhinzhilo, A. Yu Litvinova, V. M. Lyamina, G. Dzhardimalieva, I. E. Uflyand
Summary: Metal-organic frameworks (MOFs) are crystalline compounds consisting of metal ions coordinated by organic ligands. In this study, MOFs based on nickel and cobalt trimesinates were synthesized using a modified procedure. These MOFs exhibited high adsorption capacity for Congo Red and Methylene blue organic dyes. The adsorption process was well described by the Freundlich model, and the thermodynamic parameters indicated the spontaneity and exothermic nature of the process.
BULLETIN OF THE UNIVERSITY OF KARAGANDA-CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
R. Saprykin, S. A. Semenov, D. Drobot, E. V. Volchkova, G. Dzhardimalieva, A. I. Ivanova, A. B. Golovanov, V. Popenko
Summary: Nickel(II) salts are synthesized with saturated monocarboxylic acids to obtain nickel-containing nanocomposites. The resulting compounds are characterized and studied for their magnetic properties.
NANOBIOTECHNOLOGY REPORTS
(2022)
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.