Article
Materials Science, Multidisciplinary
Albert Serra, Jose Garcia-Torres
Summary: Electrochemistry plays a crucial role in synthesizing nanomaterials and fabricating micro/nanomotors, which have multifunctional capabilities and can be used in various fields such as biomedicine and environmental remediation. The interdisciplinary contributions have enriched the understanding and application of micro/nanomotors, showing the potential for creating complex nanostructures with unique properties and functionalities.
APPLIED MATERIALS TODAY
(2021)
Review
Green & Sustainable Science & Technology
S. H. Chang
Summary: Since the mid-to-late-2000s, the emergence of micro/nanomotors (MNMs) has revolutionized nanotechnology research by providing distinctive autonomous motion and multifunctionality, particularly in the field of metal ion detection and removal from water. This review provides an overview of MNMs for metal ion detection and removal, covering their classification, materials, geometries, fabrication methods, propulsion mechanisms, and performance. The challenges and future prospects of using MNMs on a large scale for water quality monitoring and remediation are also discussed.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Chemistry, Physical
Kai Feng, Liang Zhang, Jiang Gong, Jinping Qu, Ran Niu
Summary: We developed a light-induced strategy to disperse aggregated bulk covalent organic frameworks (COFs) into isolated COF nanoparticles. Metal-coordinated COFs, specifically COF-909-Cu, -Co, or -Fe, were used to design COF-based micro/nanomotors. Metal ions decorated in the COF-909 backbone promoted electron-hole separation and triggered the production of ionic and reactive oxygen species under visible light irradiation, resulting in efficient dispersion of COFs. Among them, COF-909-Fe showed the best dispersion performance and significantly reduced particle size, leading to enhanced photocatalytic degradation efficiency for tetracycline.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Engineering, Biomedical
Hyunsik Choi, Jeeyoon Yi, Seong Hwi Cho, Sei Kwang Hahn
Summary: Self-propelling micro- and nano-motors are a multifunctional platform for smart healthcare applications, including biosensing, bioimaging, and targeted drug delivery. They can be powered and guided by chemical substances or external stimuli, showing promise for in vivo applications and future clinical use. Despite some limitations, MNMs have the potential to revolutionize diagnostic and therapeutic approaches in healthcare.
Review
Chemistry, Multidisciplinary
He Zhao, Yuhong Zheng, Yuepeng Cai, Tailin Xu, Renfeng Dong, Xueji Zhang
Summary: Synthetic micro/nanomotors (MNMs) are tiny devices that can move controllably in solutions through various energy transformations. They are a promising research field in nano-technology due to their small size, controllable motion, and diverse functions. Metals have played a significant role in this emerging field, and this review explores the relationship between metal properties and the propulsion of MNMs, emphasizing the importance of metals in MNM applications. The review also presents future prospects and opportunities for ideal metallic MNMs to further promote their development.
Review
Food Science & Technology
Jie Dan, Shuo Shi, Hao Sun, Zehui Su, Yanmin Liang, Jianlong Wang, Wentao Zhang
Summary: Food poisoning and environmental pollution are major threats to global public health and agricultural resources. Micro/nanomotors show great potential as a high-speed platform for detecting and removing food contaminants, and are an emerging technology that is moving towards mass production and important functions in food applications.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Review
Medicine, Research & Experimental
Yingshu Guo, Dan Jing, Shiwei Liu, Quan Yuan
Summary: Micro/nanomotors are tiny containers that can move in liquid media and carry cargo. They have great potential for biosensing and disease treatment applications, but their small size makes it challenging to overcome random Brownian forces when moving on targets. Additionally, addressing the issues of expensive materials, short lifetimes, poor biocompatibility, complex preparation methods, and potential adverse effects is crucial for practical applications. This review discusses the working principles of micro/nanomotors, explores key materials for driving them, and considers their applications in biosensing, cancer treatment, gynecological diseases, and assisted fertilization.
Article
Materials Science, Multidisciplinary
Dalei Wang, Jiwei Jiang, Bo Hao, Mingtong Li, Zongchen Chen, Hui Zhang, Xin Wang, Bin Dong
Summary: In this study, a visible light driven micro/nanomotor (MNM) with biomimetic motion behavior similar to volvox was developed. The MNM showed in-situ rotation in response to vertical light irradiation and exhibited negative phototaxis when the irradiation condition was changed. The biomimetic motion behavior relied on the interaction between self-electrophoresis and self-diffusiophoresis mechanisms. The findings of this study have significant implications for the development of light-driven MNMs with biomimetic features for various applications such as microfluidics, microrobotics, and cargo transportation.
APPLIED MATERIALS TODAY
(2022)
Article
Biochemistry & Molecular Biology
Babitha Sumathy, Shiny Velayudhan
Summary: This study introduces a novel method for incorporating hair follicle derived stem cells in micro-pits of a bilayer skin equivalent using microneedles and a gelatin based scaffold. The microneedles are able to penetrate the upper layer of the scaffold and reach the lower layer, mimicking the natural niche of hair follicle stem cells. The bilayer system consists of electrospun layers that represent the epidermis and dermis, resulting in the formation of a complete skin model.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Mechanical
Guangzhou Wang, Tianyu Yu, Xingying Zhou, Ruiyang Guo, Mingjun Chen, Yazhou Sun
Summary: This study investigated the cutting mechanisms of glow discharge polymer (GDP) material in micro ball-end milling. Different chip formations and machined surface morphologies were studied, along with their generation mechanism. The transition of cutting modes from ploughing to ploughing-shearing coexistence and then to shearing was revealed through analysis of cutting force, specific cutting force, and machined surface roughness.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Review
Pharmacology & Pharmacy
Gizem Tezel, Selin Seda Timur, Filiz Kuralay, R. Neslihan Gursoy, Kezban Ulubayram, Levent Oner, Hakan Eroglu
Summary: Synthetic micro/nanomotors are novel self-propelled nano or microscale devices widely used in drug transport and gene delivery. Limited in-vivo studies exist, but supportive in-vitro data encourages researchers to further explore the maneuvering capability of these novel systems in drug delivery field.
JOURNAL OF DRUG TARGETING
(2021)
Review
Polymer Science
Hui Sun, Yaning Gao, Yirong Fan, Jianzhong Du, Jinhui Jiang, Chenchen Gao
Summary: Polymeric bowl-shaped nanoparticles (BNPs) are anisotropic hollow structures that have advantages in encapsulation, delivery, and release of large-sized cargoes. The preparation methods of BNPs include self-assembly, emulsion polymerization, swelling, freeze-drying, and template-assisted approaches. However, the lack of a comprehensive summary of BNPs hinders the development of this field. This review highlights the recent progress and future perspectives of BNPs.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Physics, Applied
N. Philipp, S. Angriman, S. Burne, P. Caral, I. Gomez Florenciano, N. Rapagnani, M. Gabriel, L. C. Estrada
Summary: This study investigates the fabrication of microdevices using direct laser lithography. The mechanism and effects of the fabrication process are studied using optical microscopy, scanning electron microscopy, atomic force microscopy, Nuclear Magnetic Resonance (1H-NMR), and Fourier transform infrared spectroscopy. The study reveals a different mechanism for the interaction between light and the photoresin, and demonstrates the coexistence of an allylic photo-induced reaction and a photo-induced polymerization effect during the fabrication process.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Bo Yang, Dawei Pan, Laixi Sun, Shufan Chen, Weidong Wu, Bo Li
Summary: This study reports the fabrication of polymer composite fibers embedding ultra-long micro/nanowires using an iterative melt co-drawing and bundling technique. By preparing PMMA porous array templates, Cu nanowires were successfully prepared and smooth complete orientation PMMA micro/nanowires were obtained.
Article
Chemistry, Multidisciplinary
Zhenfeng Wang, Yong Yan, Chao Li, Yue Yu, Sheng Cheng, Shuai Chen, Xiaojun Zhu, Liping Sun, Wei Tao, Juewen Liu, Feng Wang
Summary: In this study, a liposomal nanomotor system was developed by controlling the self-assembly behavior of gold core-platinum shell nanoparticles on liposomes. This system showed high catalase-like activity and promoted the decomposition of H2O2, leading to enhanced cellular uptake in cancer cells and plant leaves. These findings are important for biomedical and plant nanotechnology research.
Article
Chemistry, Physical
Mario Palacios-Corella, Daniel Rojas, Martin Pumera
Summary: Semiconductor-based autonomous self-propelled micromachines are at the forefront of research on environmental pollutant degradation, aiming to alleviate the contamination effects caused by the constant production of new products. However, testing these micromotors with real-life products is largely unexplored, limiting the degradation of pollutants to laboratory-scale single-component aqueous solutions or suspensions, hindering the translation of these micromachines into practical systems.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Carmen C. C. Mayorga-Martinez, Marketa Castoralova, Jaroslav Zelenka, Tomas Ruml, Martin Pumera
Summary: In this study, a method based on magnetic microrobots was developed for rapid isolation and identification of Staphylococcus aureus bacteria in milk. The method does not produce harmful compounds for the milk microbiota and can be efficiently applied in food production.
Article
Chemistry, Physical
Kalyan Ghosh, Christian Iffelsberger, Martin Konecny, Jan Vyskocil, Jan Michalicka, Martin Pumera
Summary: This study demonstrates the use of a triboelectric nanogenerator (TENG) for the production of green hydrogen from renewable mechanical energy. A magnetic covalent organic framework composite is used as the positive triboelectric material, while MXene incorporated polydimethylsiloxane (PDMS) film serves as the negative triboelectric material in a contact-separation mode TENG (CS-TENG). Micropatterns are incorporated on the surface of PDMS/MXene film using 3D printing technology. The CS-TENG harvests energy from simple mechanical actions and the harvested electrical energy is used for water electrolysis, producing hydrogen and oxygen. This research is expected to enable the production of green hydrogen from mechanical energy sources such as raindrops, wind, and vehicle movements.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Juan Perales-Rondon, Daniel Rojas, Wanli Gao, Martin Pumera
Summary: Ammonia plays a critical role in the global economy. However, the current method of ammonia production through the Haber-Bosch process is energy-intensive and results in significant CO2 emissions. Finding alternative methods of ammonia production is essential for achieving a sustainable and zero emissions future economy. Electrochemical nitrate-to-ammonia conversion, using copper electrodes fabricated through 3D printing, offers a decentralized and zero emissions approach for ammonia production. The use of fused fabrication filament printing technique allows for easy, fast, and scalable production of Cu-based electrodes, resulting in high faradaic efficiency and ammonia selectivity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Anna Jancik-Prochazkova, Vojtech Jasek, Silvestr Figalla, Martin Pumera
Summary: Nano/micro-plastics pollution is a global concern. Researchers have developed biodegradable polymers to enhance their degradation and reduce environmental accumulation. This study presents antimony sulfide-based microrobots that can capture, transport, and degrade microplastics using magnetic field and light irradiation. The photocatalytic activity of Sb2S3 quantum material enables the degradation of microplastics under UV light in an on-the-fly regime. This proof-of-concept work shows potential for efficient elimination of microplastics, especially in water environments.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Akshay Kumar K. Padinjareveetil, Martin Pumera
Summary: The increasing levels of atmospheric carbon dioxide (CO2) and global warming have raised concerns among scientists, environmentalists, and climate experts worldwide. Efforts are being made to design functional catalysts, devices, and reactors that can convert CO2 into useful products, such as low-carbon fuels and chemicals, thereby reducing its concentration in the atmosphere. Advancements in technologies like 3D printing can aid in fabricating electrodes and devices to address the rising CO2 concerns. This article discusses the fabrication of 3D-printed catalysts, devices, and reactors for the electrochemical reduction of CO2, along with post-printing treatments, catalyst modifications, and other CO2 mitigation strategies.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Akshay Kumar K. Padinjareveetil, Juan V. Perales-Rondon, Martin Pumera
Summary: Broadening the application of 3D printing technology is considered a potential strategy to address the energy crisis and environmental imbalances. This perspective article discusses the potential of engineering 3D printed electrocatalysts for ammonia production and provides experimental demonstrations to substantiate their potential.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Xia Peng, Mario Urso, Martina Kolackova, Dalibor Huska, Martin Pumera
Summary: This study investigates the use of magnetic biohybrid microrobots for the dynamic removal of micro/nanoplastics from aquatic environments. The microrobots, modified with Fe3O4 nanoparticles, show efficient capture and removal of micro/nanoplastics through magnetic actuation and electrostatic interactions. The microrobots also prove to be reusable and have hormesis stimulation effects on algae growth. This eco-friendly and low-cost strategy offers a promising solution for addressing micro/nanoplastics pollution.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kalyan Ghosh, Siowwoon Ng, Petr Lazar, Akshay Kumar K. Padinjareveetil, Jan Michalicka, Martin Pumera
Summary: This study demonstrates the enhanced electrochemical performance of germanane (GeH) by fabricating a heterostructure with Ti3C2Tx (GeMXene). The GeMXene shows superior capacitive performance and selectively allows cation intercalation. The research opens up possibilities for exploring heterostructures of other 2D materials and their applications in different electrolytes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jayraj V. Vaghasiya, Carmen C. Mayorga-Martinez, Keval K. Sonigara, Petr Lazar, Martin Pumera
Summary: Covalently functionalized germanane is a novel fluorescent probe used in gas sensing, pH sensing, and anti-counterfeiting. The study found that gas molecules absorbed on the surface of germanane can cause luminescence, which can be measured to directly detect gas absorption. Moreover, germanane can be used for monitoring the shelf life of perishable foods and secret communication.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Wanli Gao, Juan Perales-Rondon, Jan Michalicka, Martin Pumera
Summary: Electrochemical nitrate reduction reaction (NO3RR) is a promising method for addressing nitrate pollution and an alternative to traditional ammonia production. This study explores the electrocatalytic activity of 3D printed carbon frameworks consisting of carbon black and carbon nanotubes for NO3RR. The 1D carbon framework exhibits higher electrocatalytic activity with a Faradaic efficiency of over 50% at -1.21 V vs. RHE, attributed to synergistic electrocatalytic contributions between carbon nanotubes and metallic impurities. An ultrathin deposit of electrocatalytic manganese oxides is further added to ensure well-defined surfaces for effective NO3RR. This integrated approach shows promise for electrode fabrication and electrochemical NO3RR.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Keval K. Sonigara, Jayra V. Vaghasiya, Carmen C. Mayorga-Martinez, Martin Pumera
Summary: The development of self-powered biosensor technologies requires flexible and robust energy storage devices. In this study, a hybrid self-powered biosensor system using a zinc-ion supercapacitor (ZISC) wearable patch was developed. The patch integrated a two-dimensional NiPS3 electrode, which showed good electrochemical performance. The ZISC demonstrated stable energy storage performance and mechanical flexibility, making it suitable for powering health monitoring devices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Cagatay M. Oral, Martin Pumera
Summary: Untethered robots in micro/nano scale have the ability to access hard-to-reach areas of the body. Recent research has focused on the autonomous task completion capabilities of these robots in challenging environments. However, most studies have only been conducted in vitro, and their results may significantly differ in vivo. This article examines studies conducted with animal models to demonstrate the current state of micro/nanorobotic applications in real-world conditions. Categorized by target locations, the main strategies employed in organs and other body parts are highlighted, along with key challenges that need to be addressed for successful translation to clinical use.
Article
Chemistry, Physical
Katarina A. Novcic, Christian Iffelsberger, Mario Palacios-Corella, Martin Pumera
Summary: MXenes are a fast-growing family of two-dimensional materials that have excellent catalytic properties and wide-ranging applications. When working with powder-based materials such as Ti3C2Tx MXenes, a common method is to disperse the catalytic materials in various solvents and then drop-cast the suspensions onto desired surfaces. However, the choice of solvent for preparing the powder dispersions can significantly impact the electrochemical performance of the drop-cast samples.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Anna Jancik-Prochazkova, Martin Pumera
Summary: Microrobots, made from phoretic Sb2S3 material, demonstrated swarming behavior under light illumination without the need for chemical fuel. These environmentally friendly microrobots were prepared by reacting precursors with bio-originated templates in an aqueous solution in a microwave reactor. The photocatalytic abilities of the microrobots were showcased by degrading industrially used dyes, quinoline yellow and tartrazine, in the on-the-fly mode. This proof-of-concept work highlights the suitability of Sb2S3 photoactive material for designing swarming microrobots for environmental remediation applications.
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.
