Article
Engineering, Chemical
Patricia Marin Sam Roman, Kitty P. Nijmeijer, Rint Sijbesma
Summary: New isoporous nanofiltration composite membranes with high permeability and size-charge selectivity rejection were fabricated by photo-polymerization.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Hari Kalathil Balakrishnan, Soo Min Lee, Ludovic F. Dumee, Egan H. Doeven, Richard Alexander, Dan Yuan, Rosanne M. Guijt
Summary: 3D printing is used to fabricate devices with micro-level features and through the use of nanoporous materials, porous membranes can be integrated into 3D printed devices. In this study, nanoporous membranes were fabricated using digital light projection (DLP) 3D printing and resin exchange. A functionally integrated device was then created through a simple, semi-automated manufacturing process.
Article
Engineering, Chemical
Yanan Huang, Peng Yang, Facui Yang, Chunyu Chang
Summary: In this study, self-supported nanocomposite membranes with multifunctional separation performances were successfully fabricated by integrating amyloid-like oligomers with nanocelluloses to remove various pollutants from water resources. Benefitting from multiple functional groups, the membranes showed excellent removal efficiency and sustainability.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Engineering, Environmental
Muhammad Bilal Asif, Sidra Iftekhar, Tahir Maqbool, Biplob Kumar Pramanik, Shamas Tabraiz, Mika Sillanpaa, Zhenghua Zhang
Summary: The application and research of two-dimensional (2D) membranes in water purification have made significant progress, especially in materials like graphene. However, challenges remain in industrial production, particularly in large-scale fabrication of nanoporous membranes and ensuring membrane stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Xiaojiao Li, Kanupriya Nayak, Manfred Stamm, Bijay P. Tripathi
Summary: A simple methodology for preparing nano-porous polysulfone membranes with zwitterionic functionalized silica nanogels is reported, showing high BSA protein rejection and antifouling properties. The zwitterionic membranes exhibited improved water permeation and dye rejection while maintaining high water uptake and protein rejection rates.
Article
Engineering, Chemical
Joey Kloos, Niki Joosten, Albert Schenning, Kitty Nijmeijer
Summary: The transition to a circular economy requires efficient separation technologies, with membrane technology playing a crucial role. Nanostructured polymer membranes based on self-assembled materials are gaining interest for their control at a molecular level, offering potential for water purification, desalination, and selective recovery. Efforts are being made to address challenges such as thin, defect-free nanoporous liquid crystal layers and large-scale production with alignment control.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Mao-Yuan Huang, Qiang Lyu, Szu-Chia Chien, Li-Chiang Lin
Summary: In this study, the potential of a new two-dimensional material called graphyne for boron removal was explored using molecular simulation techniques. The results showed that graphyne membranes with hexagonal pores can effectively remove boric acid, while membranes with triangular pores have a poor ability to remove boric acid. The free energy barrier of boron transport was also computed to better understand the membrane's performance in boron removal.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Liliang Tian, Humin Duan, Jiaming Luo, Yonghong Cheng, Le Shi
Summary: Hydrogen is a prime candidate for clean energy source with high energy density, but current industrial methods struggle to provide high purity hydrogen. Therefore, there is an urgent need to develop large-scale, low-cost hydrogen separation technology.
ACS APPLIED NANO MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Erwin Doe, Hannah L. L. Hayth, Ross Brumett, Emil F. F. Khisamutdinov
Summary: Nucleic acid-based therapeutics involve conjugating small molecule drugs to nucleic acid oligomers to overcome solubility challenges and the inefficient delivery into cells. Click chemistry has emerged as a popular approach due to its simplicity and high conjugation efficiency. However, the purification of oligonucleotide conjugates is a major drawback. This study introduces a simple and rapid purification method using MWCO centrifugation to separate excess unconjugated molecules and toxic catalysts for nucleic acid nanotechnology applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Chemical
Wooyoung Choi, Seung Eun Choi, Jae Seung Seol, Jeong Pil Kim, Minsu Kim, Hyungjoon Ji, Ohchan Kwon, Hanim Kim, Ki Chul Kim, Dae Woo Kim
Summary: A layered composite membrane composed of nanoporous graphene and polyethylene oxide is developed, which demonstrates ultrafast H-2 permeability and moderate selectivity. The presence of nanopores and expansion of interlayer spacing significantly enhance the permeation of gas molecules.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Peifu Cheng, Nicholas Ferrell, Carl M. Oberg, Steven F. Buchsbaum, Melinda L. Jue, Sei Jin Park, Dan Wang, Shuvo Roy, Francesco Fornasiero, William H. Fissell, Piran R. Kidambi
Summary: This study demonstrates the scalable fabrication of wafer-scale carbon nanotube (CNT) membranes with highly aligned, low-friction, straight channels/capillaries and narrow pore-diameter distributions for hemofiltration/hemodialysis. The CNT membranes show significantly higher hydraulic permeability and enhanced removal of middle molecules compared to commercial membranes, while maintaining comparable albumin retention. The unique transport characteristics of CNTs offer transformative advances for hemofiltration and have potential applications in other bio-systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Electrochemistry
Zhao Zichu, Liu Yajie, Yuan Lijing
Summary: This paper reviews the fabrication conditions of nanoporous anodic alumina (NAA) and introduces the electrochemical anodization process in different acidic solutions. The study found that the structure and interpore distance properties of NAA are influenced by factors such as electrolyte type, concentration, voltage, current density, temperature, and anodizing time.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Liyu Zhu, Yucheng Li, Peng Ye, Jingyang Zhao, Jing Liu, Jiandu Lei, Luying Wang, Ruisheng Xue
Summary: This article presents an ultra-stable and highly proton conductive self-healing proton exchange membrane made by complexation between Nafion and poly(vinyl alcohol) (PVA), followed by incorporation of sodium lignosulfonate (SLS) intercalation-modified graphene oxide (GO) and post-modification with 4-formylbenzoic acid (FBA). Compared to recast Nafion, the composite membranes exhibit improved mechanical properties and higher proton conductivity. Moreover, the incorporated PVA gives the membranes superior self-healing capabilities. This study opens up new possibilities for the development of reliable and durable proton exchange membranes for fuel cells.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Ayesha Kausar
Summary: Nanoporous graphene, frequently used in nanocomposites, has shown significant applications in the membrane sector, particularly in gas purification and water permeation. This review highlights the design, features, and advanced functions of polymer/nanoporous graphene nanocomposite membranes. The structural diversity of these nanocomposites enables efficient membrane separation processes for gaseous molecules, ions, and water contaminants. Future research on innovative nanoporous graphene-based membranes holds promise for overcoming design and performance challenges in technical applications.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2023)
Article
Engineering, Environmental
Chenjie Wei, Xihang Zhang, Shuyan Ma, Chengxiong Zhang, Yang Li, Dajing Chen, Hong Jiang, Zhikang Xu, Xiaojun Huang
Summary: The study developed an ultra-robust Janus PP hollow fiber membrane with capillary-driven siphon and photothermal properties, achieving high evaporation rate, superior salt resistance, multi-media evaporation applications, and stability. This membrane demonstrated asymmetric wettability, high mechanical strength, strong light absorption, and superior performance in rejecting ions, oil, and dye contaminants, providing a new paradigm for low heat loss, high evaporation rate, salt resistance, and multi-media purification.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Materials Science, Multidisciplinary
Chuanlong Ma, Anton Nikiforov, Dirk Hegemann, Nathalie De Geyter, Rino Morent, Kostya (Ken) Ostrikov
Summary: This review presents recent advances in low-temperature plasma processing for controlling surface wettability. The underlying mechanisms, key features of fabrication processes, and water-surface interactions are discussed. It aims to guide further development of advanced functional materials.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Chemistry, Physical
Xin Zeng, Shuai Zhang, Xiucui Hu, Cheng Zhang, Kostya (Ken) Ostrikov, Tao Shao
Summary: With the increase in the greenhouse effect and reduction of fossil fuel resources, finding a feasible solution to directly convert power to chemicals using renewable energy is urgent. The power-to-chemicals approach, such as non-thermal plasma, electro-catalysis, and photo-catalysis, has shown great potential in the past two decades. This paper introduces the application of plasma technology in energy conversion, focusing on plasma-enabled ammonia synthesis and analyzing its state-of-the-art, mechanisms, and techno-economics. It emphasizes the importance of the power-to-chemicals approach in reducing carbon emissions and environmental pollution.
FARADAY DISCUSSIONS
(2023)
Article
Chemistry, Multidisciplinary
Amandeep Singh Pannu, Suvankar Sen, Xiaodong (Tony) Wang, Robert Jones, Kostya (Ken) Ostrikov, Prashant Sonar
Summary: Organic-inorganic hybrid lead trihalide perovskites have shown promise in various optoelectronic devices. Red-emitting perovskite-based LEDs have been less developed compared to green and blue ones. This study utilizes red-emitting 2D perovskites and carbon dots to create a stable composite material for red-emitting LEDs with improved performance.
Article
Nanoscience & Nanotechnology
Negar Zebardastan, Jonathan Bradford, Josh Lipton-Duffin, Jennifer MacLeod, Kostya (Ken) Ostrikov, Massimo Tomellini, Nunzio Motta
Summary: Face-to-face annealing is an effective method for obtaining epitaxial graphene with precise control over size, quality, growth rate and thickness.
Article
Physics, Fluids & Plasmas
Kun Liu, Wenqiang Geng, Xiongfeng Zhou, Qingsong Duan, Zhenfeng Zheng, Kostya (Ken) Ostrikov
Summary: Two modes of the atmospheric-pressure plasma discharge, characterized by the dominant O-3 and NO (x) species, were studied using numerical and experimental methods. A global chemical kinetics model was developed to investigate the mode transition mechanisms, and it accurately described the transition. The individual and synergistic effects of discharge energy and gas temperature on species density and the relative contributions of dominant reactions were quantified under increasing discharge voltage conditions.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Darwin Kurniawan, Jacob Mathew, Michael Ryan Rahardja, Hoang-Phuc Pham, Pei-Chun Wong, Neralla Vijayakameswara Rao, Kostya (Ken) Ostrikov, Wei-Hung Chiang
Summary: This study reports the development of smart anticancer drug nanocarriers through plasma engineering technique. The nanocarriers containing chitosan and nitrogen-doped graphene quantum dots can release drugs in a pH-responsive manner and exhibit enhanced toughness. The loaded nanocarriers demonstrate improved drug loading capability and stable release, showing great potential in cancer treatment.
Article
Chemistry, Multidisciplinary
Xin Zeng, Shuai Zhang, Yadi Liu, Xiucui Hu, Kostya Ken Ostrikov, Tao Shao
Summary: To meet global net-zero emission targets, sustainable and low-carbon alternatives are urgently needed for energy-intensive industrial processes like ammonia synthesis. In this study, plasma catalysis is used to achieve renewable-electricity-driven ammonia synthesis under mild conditions. By identifying energy loss pathways and optimizing process parameters, such as pulse voltage and gap distance, high ammonia yields with high energy efficiency and low emission footprint are obtained.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Rusen Zhou, Dejiang Zhou, Baowang Liu, Lanlan Nie, Yubin Xian, Tianqi Zhang, Renwu Zhou, Xinpei Lu, Kostya Ken Ostrikov, Patrick J. Cullen
Summary: The addition of helium can enhance the synthesis of ammonia by modifying the energy transfer mechanism in the plasma, leading to more efficient activation of N2 and production of NH3.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Review
Chemistry, Physical
Tianlai Xia, Yu Yang, Qiang Song, Mingchuan Luo, Mianqi Xue, Kostya (Ken) Ostrikov, Yong Zhao, Fengwang Li
Summary: Recently, electrocatalytic reactions involving oxygen, nitrogen, water, and carbon dioxide have been developed to produce clean energy, fuels, and chemicals. Understanding catalyst structures, active sites, and reaction mechanisms is crucial for improving performance. In this review, we summarize state-of-the-art in situ characterisation techniques used in electrocatalysis, categorizing them into microscopy, spectroscopy, and other techniques. We discuss the capacities and limits of these techniques to guide further advances in the field.
NANOSCALE HORIZONS
(2023)
Article
Chemistry, Physical
Prabhat Kumar, Martin Silhavik, Zahid Ali Zafar, Jiri Cervenka
Summary: We successfully reverse the aging process of graphene oxide precursors through oxygen plasma treatment, reducing the size of graphene oxide flakes and restoring their negative zeta potential and suspension stability in water for the fabrication of compact and mechanically stable graphene aerogels using hydrothermal synthesis. Additionally, high-temperature annealing is employed to remove oxygen-containing functionalities and repair lattice defects in reduced graphene oxide, resulting in highly electrically conducting graphene aerogels with a conductivity of 390 S/m and low defect density. The roles of various oxygen functional groups, including carboxyl, hydroxyl, epoxide, and ketonic oxygen species, are thoroughly investigated using X-ray photoelectron and Raman spectroscopies. Our study provides unique insights into the chemical transformations occurring during the aging and thermal reduction of graphene oxide from room temperature up to 2700 degrees C.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Ghulam Abbas, Farjana J. Sonia, Martin Jindra, Jiri Cervenka, Martin Kalbac, Otakar Frank, Matej Velicky
Summary: Electrostatic gating using electrolytes is an effective method for controlling the electronic properties of atomically thin two-dimensional materials such as graphene. However, the relationship between the ionic type, size, concentration, and gating efficiency is complex. We conducted in situ Raman microspectroscopy combined with electrostatic gating using various concentrated aqueous electrolytes to understand these relationships. We found that the ionic type and concentration do not significantly affect the doping rate of graphene in the high ionic strength limit of 3-15 M, and a large proportion of the applied voltage contributes to the Fermi level shift in concentrated electrolytes. We provide a practical overview of the doping efficiency for different gating systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Haotian Gao, Guoli Wang, Zhongzheng Huang, Lanlan Nie, Dawei Liu, Xinpei Lu, Guangyuan He, Kostya Ken Ostrikov
Summary: Nitrogen fixation is a crucial process for various biological and industrial processes, but it is also a major source of carbon emissions globally. In this study, a novel approach using plasma-activated mist (PAM) is proposed for efficient and sustainable nitrogen fixation. The PAM system generates nitrogen-fixation species through the reaction of air plasma and water mist, and the liquid-phase nitrogen fixation product is dominated by NO3-. This system is applied to deliver nitrogen-based nutrients directly to plant roots using an aeroponic system, leading to significant improvements in plant growth.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Hsiuan Ling Ho, Jung Yen Yang, Chun Hung Lin, Jiann Shieh, Yu Fang Huang, Yi Hong Ho, Tsung Shine Ko, Chiung Chih Hsu, Kostya (Ken) Ostrikov
Summary: The development of reliable and cost-effective molecular detection at the attomolar level on analyte-immobilizing surfaces without lithographic patterning is a challenge in chemical sensing. This study presents a novel approach using plasma etching to produce custom-designed adhesive superhydrophobic silicon nanograss surfaces. These surfaces enable effective immobilization of Ag nanoparticles and R6G target molecules, providing a reliable Raman scattering platform for detecting trace analytes. The study also introduces a plasma-enabled approach for precise interface nanostructuring, potentially leading to unprecedented capabilities in molecular-level sensing technologies.
ADVANCED MATERIALS INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Jinyong Lin, Dong Li, Changhong Li, Ziqi Zhuang, Chengchao Chu, Kostya (Ken) Ostrikov, Erik W. W. Thompson, Gang Liu, Peiyu Wang
Summary: Cancer cells are more susceptible to oxidative stress and nanomaterials-based therapies that generate reactive oxygen species (ROS) have been effective in eliminating cancer cells. These therapies, including chemodynamic therapy, photodynamic therapy, sonodynamic therapy, as well as multi-modal therapies such as combination therapy, have shown significant inhibition of tumor growth. However, the limitations of multi-modal therapy in material preparation and operation protocols hinder its clinical application. Cold atmospheric plasma (CAP), as a reliable source of ROS, light, and electromagnetic fields, provides a simple alternative for implementing multi-modal treatments. Therefore, the emerging field of tumor precision medicine is expected to benefit from these promising multi-modal therapies based on ROS-generating nanomaterials and reactive media like CAPs.
Article
Chemistry, Multidisciplinary
Prabhat Kumar, Martin Silhavik, Manas R. Parida, Hynek Nemec, Jiri Cervenka, Petr Kuzel
Summary: This study investigates the effect of defects on charge transport in graphene by studying the transition of reduced graphene oxide to graphene through high-temperature annealing. The THz spectra reveal that the conductivity of 3D graphene networks increases with frequency, while the permittivity decreases, suggesting the contribution of a relaxational mechanism to conductivity. Upon photoexcitation, carriers injected into the conduction band exhibit picosecond lifetime and femtosecond dephasing time.
NANOSCALE ADVANCES
(2023)
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.
