Article
Multidisciplinary Sciences
Yan Wang, Jong Chan Kim, Yang Li, Kyung Yeol Ma, Seokmo Hong, Minsu Kim, Hyeon Suk Shin, Hu Young Jeong, Manish Chhowalla
Summary: This study reports a method for preparing high-performance p-type devices on two-dimensional transition-metal dichalcogenides (TMDs), and demonstrates ideal interfaces and no chemical interactions between the materials through atomic resolution imaging and spectroscopy.
Article
Materials Science, Multidisciplinary
Hyunji Son, Taehoon Kim, Chulyeon Lee, Hwajeong Kim, Youngkyoo Kim
Summary: Organic phototransistors were developed using ambipolar polymers consisting of p-type and n-type indacenodithienothiophene (IDTT)-based conjugated polymers. The p-type polymer, PIDTT-8OBT, synthesized via Stille coupling reactions, demonstrated efficient light detection in p-channel mode for blue, green, and orange light and ambipolar characteristics when blended with an n-type polymer, PIDTT-NDI, covering a wide range of visible light up to 750 nm. The ambipolar OPTRs showed high photosensitivity in both p-channel and n-channel modes at different wavelengths, with a notable capability to detect deep red light not absorbed by the polymer blend.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Jesse Balgley, Jackson Butler, Sananda Biswas, Zhehao Ge, Samuel Lagasse, Takashi Taniguchi, Kenji Watanabe, Matthew Cothrine, David G. Mandrus, Jairo Velasco, Roser Valenti, Erik A. Henriksen
Summary: In this study, we demonstrate ultrasharp lateral p-n junctions in graphene using electronic transport, scanning tunneling microscopy, and first-principles calculations. These junctions are formed at the boundary between differently doped regions of a graphene sheet, with one side being intrinsic and the other side being charge-doped by proximity to an alpha-RuCl3 flake. Our results show potential variations on a sub 10 nm length scale in heterostructures of graphene, hexagonal boron nitride, and alpha-RuCl3. First-principles calculations reveal a sharp decay of charge-doping from the edge of the alpha-RuCl3 flake within just a few nanometers.
Article
Chemistry, Multidisciplinary
Lior Asor, Jing Liu, Yonatan Ossia, Durgesh C. Tripathi, Nir Tessler, Anatoly Frenkel, Uri Banin
Summary: This study demonstrates the successful p-type doping of originally n-type InAs nanocrystals by post-synthetically doping with Cd, showing remarkable stability of hole conduction, mobility, and hysteretic behavior in Cd-doped InAs FETs compared to intrinsic InAs NCs FETs when exposed to air. Cd acts as a p-type dopant and also protects the nanocrystals from oxidation, setting the stage for implementing doped nanocrystal systems in printed electronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Mingchao Xiao, Jie Liu, Chuan Liu, Guangchao Han, Yanjun Shi, Chunlei Li, Xi Zhang, Yuanyuan Hu, Zitong Liu, Xike Gao, Zhengxu Cai, Ji Liu, Yuanping Yi, Shuai Wang, Dong Wang, Wenping Hu, Yunqi Liu, Henning Sirringhaus, Lang Jiang
Summary: Bulk heterojunctions in organic photovoltaic devices have complex structures, but highly-ordered organic p-n junctions are desirable for studying the nature of organic heterojunctions. By using a design rationale, the authors successfully fabricated p-n heterojunctions based on monolayer molecular crystals.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Shuqiong Lan, Yudan Ke, Huipeng Chen
Summary: This study demonstrates the fabrication and operation of a photonic synaptic transistor using light control, allowing for simulation of fundamental synaptic properties. The results suggest that light-pulse stimulation is beneficial for increasing the response current simulated by electrical pulses. This work represents a significant step towards the realization of high-efficiency AI electronics.
IEEE ELECTRON DEVICE LETTERS
(2021)
Article
Physics, Applied
Xiaochi Liu, Yuchuan Pan, Junqiang Yang, Deshun Qu, Huamin Li, Won Jong Yoo, Jian Sun
Summary: This study demonstrates a unique structure of two-dimensional p-MOSFET with controlled oxygen plasma-induced degenerate p-doping in contact areas, achieving excellent device performances including low threshold voltage, high on/off ratio, and high hole mobility.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jiaqi Wei, Fang Liu, Xin Rong, Tao Wang, Liuyun Yang, Renchun Tao, Jing Yang, Liwei Guo, Bo Shen, Xinqiang Wang
Summary: Unintentional nitrogen incorporation in beta-Ga2O3 films grown by plasma-assisted molecular beam epitaxy hinders n-type doping, while a quartz crucible free of nitrogen atoms can overcome this issue, allowing tunable electron concentration in the n-type beta-Ga2O3 films.
Article
Chemistry, Multidisciplinary
Ligang Ma, Xiaoqian Ai, Yujie Chen, Pengpeng Liu, Chao Lin, Kehong Lu, Wenjun Jiang, Jiaen Wu, Xiang Song
Summary: In this study, ZnO/NiO nanocomposites were successfully fabricated by constructing pn heterojunction. The nanocomposites exhibited excellent photocatalytic activity at 550 degrees C. The results showed that the heterojunction interface between n-type ZnO and p-type NiO played a crucial role in impeding the recombination of photogenerated electron-hole pairs and improving photocatalytic efficiency.
Article
Physics, Applied
Quanhua Chen, Rujun Zhu, Xing Zhao, Bingxian Hao, Binhong Li, Zhihao Yu, Huabin Sun, Jie Wu, Chee Leong Tan, Yong Xu
Summary: Using nickel instead of gold as contact electrodes can greatly improve the stability of n-type polymer transistors. Devices with gold contacts showed ambipolar conduction, while devices with nickel contacts retained good unipolar properties.
APPLIED PHYSICS LETTERS
(2022)
Article
Multidisciplinary Sciences
You Meng, Xiaocui Li, Xiaolin Kang, Wanpeng Li, Wei Wang, Zhengxun Lai, Weijun Wang, Quan Quan, Xiuming Bu, SenPo Yip, Pengshan Xie, Dong Chen, Dengji Li, Fei Wang, Chi-Fung Yeung, Changyong Lan, Chuntai Liu, Lifan Shen, Yang Lu, Furong Chen, Chun-Yuen Wong, Johnny C. Ho
Summary: The authors explore the unique multi-scale van der Waals interactions in one-dimensional tellurium systems to overcome the restrictions imposed by chemical bonds. They succeed in synthesizing wafer-scale van der Waals nanomeshes composed of self-welding Te nanowires on various substrates at a low temperature, which exhibit improved transport and photoelectric properties. These Te vdWs nanomesh electronics hold great promise in meeting emerging technological demands.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Nahee Park, Hyunkyung Lee, Jeongmin Park, Tuan Khanh Chau, Hojin Kang, Haeyong Kang, Dongseok Suh
Summary: Modulating the charge carriers in graphene using the ferroelectricity of a nearby dielectric can control its electronic properties. However, abnormal electrical coupling behaviors, such as anti-hysteresis, are observed when graphene is located on ferroelectric oxides. This study found that the ferroelectric modulation of graphene is significantly influenced by the ambipolar nature of graphene and ferroelectric-assisted charge trapping with carrier-type dependency.
NPG ASIA MATERIALS
(2022)
Article
Multidisciplinary Sciences
Yongsu Lee, Seung-Mo Kim, Kiyung Kim, So-Young Kim, Ho-In Lee, Heejin Kwon, Hae-Won Lee, Chaeeun Kim, Surajit Some, Hyeon Jun Hwang, Byoung Hun Lee
Summary: This report demonstrates a P-type ternary device with controllable threshold voltage values, showing three distinct electrical output states using a special structure. It also proves the feasibility of designing a complementary standard ternary inverter around 1V.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Mohammad -Reza Zamani-Meymian, Nima Naderi, Maryam Zareshahi
Summary: The present research investigated the effect of graphene layer and zinc oxide nanorods on the photovoltaic performance of ZnO thin film-based heterojunction solar cells. The results showed that the addition of graphene improved the photovoltaic properties, increasing the efficiency and fill factor of the solar cells.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Zongrui Wang, Renping Li, Kexiang Zhao, Fei Yu, Jianfeng Zhao, Yonggang Zhen, Qichun Zhang
Summary: This work demonstrates the efficient and promising alternative route to achieve high-performance n-type organic semiconductors through the co-crystallization strategy. The charge-transport switching is achieved by tailored energy level and molecular packing arrangement, leading to high electron mobility and air-stable nature.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Review
Engineering, Chemical
Lei Wang, Ziyu Huang, Xiaohui Yang, Lukas Rogee, Xiaowen Huang, Xuming Zhang, Shu Ping Lau
Summary: With the development of modern industry, four interrelated issues have become increasingly prominent: environmental pollution, the energy crisis, the greenhouse effect, and the global food crisis. Photocatalysis is a promising method to address these challenges, and the use of photocatalytic optofluidic microreactors could further enhance efficiency and utilization of solar energy. These microreactors offer advantages such as a large surface-to-volume ratio, short molecular diffusion length, and high reaction efficiency, making them a potential solution for mitigating these crises. This paper provides a comprehensive review of microreactor designs and developments in the fields of water purification, water splitting, CO2 fixation, and coenzyme regeneration in recent years. As the most promising tool for solar energy utilization, the increasing innovation in photocatalytic optofluidic microreactors is expected to drive rapid development in related fields in the future.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Physical
Tianyue Wang, Wenqiu Deng, Jiupeng Cao, Feng Yan
Summary: Metal halide perovskite solar cells (PSCs) are promising next-generation photovoltaic technologies with low-cost fabrication, solution processability, and superior optoelectronic properties. However, commercialization still faces challenges and advanced heterojunction design is crucial for improving device performance.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Anneng Yang, Jiajun Song, Hong Liu, Zeyu Zhao, Li Li, Feng Yan
Summary: This study presents a wearable ECG mapping technique using ultra-flexible organic electrochemical transistor (OECT) arrays. The technique enables real-time acquisition of QRS complexes at different positions and directions relative to the heart, and successful analysis of ECG signals before and after exercise, showing potential applications in sports training and fitness scenarios.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiajun Song, Guanqi Tang, Jiupeng Cao, Hong Liu, Zeyu Zhao, Sophie Griggs, Anneng Yang, Naixiang Wang, Haiyang Cheng, Chun-Ki Liu, Iain McCulloch, Feng Yan
Summary: In this study, a high-performance flexible photodetector is realized by gating an organic electrochemical transistor with a perovskite solar cell. The device exhibits high gain, fast response time, and ultrahigh detectivity under a low working voltage, allowing it to track photoplethysmogram signals and peripheral oxygen saturation. This work offers a novel strategy for high-performance flexible photodetectors in low-power, user-friendly, and wearable optoelectronics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
He Shao, Yueqing Li, Wei Yang, Xiang He, Le Wang, Jingwei Fu, Mingyang Fu, Haifeng Ling, Paschalis Gkoupidenis, Feng Yan, Linghai Xie, Wei Huang
Summary: A phototransistor memory based on air-stable Zr-CsPbI3 perovskite nanocrystals (PNCs) is designed, with broadband photoresponse capability. By utilizing the different electron capture ability of Zr-CsPbI3 PNCs to 650 and 405 nm light, an artificial synapse and non-volatile memory can be created on-demand and quickly reconfigured within a single device for specific purposes. The optically reconfigurable and wavelength-aware operation between short-term plasticity (STP) and long-term plasticity (LTP) modes enables integrated blue feature extraction and target recognition in a homogeneous neuromorphic vision sensor array.
ADVANCED MATERIALS
(2023)
Article
Optics
Menghan Jia, Fang Wang, Libin Tang, Jinzhong Xiang, Kar Seng Teng, Shu Ping Lau, Yanfei Lu
Summary: UV photodetectors based on metal oxide heterostructures have gained significant interest due to their excellent performance and ease of fabrication. In this study, a UV photodetector consisting of p-NiO/SiO2/n-ZnO heterostructure was prepared by RF magnetron sputtering method, exhibiting remarkable performances such as high rectification ratio, responsivity, and external quantum efficiency at low power consumption.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Applied
Fangyi Shi, Lingling Zhai, Qingqing Liu, Jingya Yu, Shu Ping Lau, Bao Yu Xia, Zheng-Long Xu
Summary: This study reviews the latest catalytic materials for practical high-energy lithium-sulfur batteries (LSBs) and explores the relationship between catalyst design strategies, material structures, and electrochemical performance. The authors also statistically evaluate the state-of-the-art catalyst-modified LSBs to identify the remaining gap between current advancements and real-world requirements. Finally, the authors propose a study on catalytic materials to help realize practical LSBs.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Jiajun Song, Hong Liu, Zeyu Zhao, Peng Lin, Feng Yan
Summary: Flexible and stretchable biosensors are increasingly utilized for acquiring high-fidelity signals in emerging applications. Organic thin film transistors (OTFTs) are ideal candidates for flexible and stretchable biosensing due to their soft nature, amplification function, biocompatibility, functionalization ease, low cost, and device diversity. This review provides a comprehensive overview of the advancements in flexible-OTFT-based biosensors, discussing their features, functionalization strategies, applications in wearable, implantable, and portable electronics, as well as neuromorphic biointerfaces. Special attention is given to emerging stretchable organic transistors and their engineering routes for achieving stretchability, along with their implementations in e-skin and smart textiles. The remaining challenges and future opportunities in this field are also summarized.
ADVANCED MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Jiupeng Cao, Peng You, Guanqi Tang, Feng Yan
Summary: As one of the most promising next-generation photovoltaic technologies, the use of 2D materials in organic-inorganic halide perovskite solar cells (PSCs) has shown significant improvement in device performance. This review summarizes the recent progress in the application of 2D materials as electrodes, charge transport layers, and additives in PSCs. The effects of various 2D materials on charge transport characteristics, crystallization dynamics, and long-term stability of PSCs are discussed, and future challenges and prospects are addressed.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2023)
Article
Multidisciplinary Sciences
Renzhong Zhuang, Songhua Cai, Zengxia Mei, Huili Liang, Ningjiu Zhao, Haoran Mu, Wenzhi Yu, Yan Jiang, Jian Yuan, Shuping Lau, Shiming Deng, Mingyue Han, Peng Jin, Cailin Wang, Guangyu Zhang, Shenghuang Lin
Summary: In order to reduce radiation health risks, X-ray detectors need to be operated at minimal doses during X-ray security examination or medical inspection, which requires high sensitivity and low detection limits. This study presents the realization of highly sensitive X-ray detectors based on an environmentally friendly solution-grown thick BiI/BiI3/BiI van der Waals heterostructure. These detectors show anisotropic X-ray detection response, with a sensitivity of up to 4.3 x 10(4) μC Gy(-1) cm(-2) and a detection limit as low as 34 nGy s(-1). Additionally, the BixIy detectors demonstrate high environmental and hard radiation stabilities.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xin Xi, Wei Tang, Dongqing Wu, Chaochao Shen, Wei Ji, Jun Li, Yuezeng Su, Xiaojun Guo, Ruili Liu, Feng Yan
Summary: The use of carbon materials in all-carbon electronic devices allows for the preparation of components with different properties and functions. In this study, an all-carbon solution-gated transistor (AC-SGT) based dopamine sensor was fabricated using Nafion coated nitrogen and oxygen co-doped carbon yarn as the gate electrode and graphene as the channel. The AC-SGT exhibited excellent dopamine sensing performances in terms of sensitivity, selectivity, limit of detection, linear range, long-term stability, and preconditioning time. Additionally, a smartphone controlled portable sensing system integrated with the AC-SGT showed great in vitro sensing capability of dopamine in urine, demonstrating the potential of all-carbon transistors in smart wearable biosensors.
Article
Chemistry, Multidisciplinary
Fangyi Shi, Xuyun Guo, Chunhong Chen, Lyuchao Zhuang, Jingya Yu, Qi Qi, Ye Zhu, Zheng-Long Xu, Shu Ping Lau
Summary: A recent study examines the dynamics of liquid-to-solid sulfur transition and investigates the charging of polysulfides by visually observing the electrochemical generation of sulfur. The study finds a quantitative correlation between the size and number density of liquid sulfur droplets and the applied current, providing insights for designing fast-charging sulfur cathodes.
Editorial Material
Chemistry, Physical
Feng Yan, Yuanyuan Zhou, Maria Antonietta Loi, Michael Saliba
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zheng Wen, Shuhan Wang, Fangzhou Yi, Dingting Zheng, Chengyuan Yan, Zhenhua Sun
Summary: Fully optical artificial synapses are essential for neuromorphic computing, and this research demonstrates the successful emulation of synaptic plasticity and memory transition by combining different trap matrices to achieve bidirectional photoresponse.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Haiyan Jin, Lok Wing Wong, Ka Hei Lai, Xiaodong Zheng, Shu Ping Lau, Qingming Deng, Jiong Zhao
Summary: A simple fabrication method for vacancy-rich IrCo alloy catalysts has been developed by post-annealing single atom dispersed precursors. The resulting catalyst exhibits enhanced activity and stability compared to traditional methods.
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.
