Versatile and Remotely Controllable Light ‐Induced Coagulation of Particles Under Flow in a 2D Channel
A simple experimental tool demonstrates precise and remote control of the extent of particle aggregation/coagulation in a 2D channel under shear with a high spatial resolution down to a microscopic scale by using light as a non-invasive stimulus. AbstractOn-demand switch on/off blood clogging is of paramount importance for the survival of mammals, for example as a quick response to seal damage wounds to minimize their bleeding rate. This mechanism is a complex chain process from initiated red blood cell aggregation at the target location (open wound) that quickly seals on a macroscopic scale the damaged flash. Inspired by ...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Daniela Vasquez ‐Muñoz,
Fabian Rohne,
Anjali Sharma,
Nino Lomadze,
Svetlana Santer,
Marek Bekir Tags: Research Article Source Type: research
Achieving Low ‐Dose Rate X‐Ray Imaging Based on 2D/3D‐Mixed Perovskite Films
Large-scale X-ray detectors based on 2D/3D mixed perovskite are fabricated via spraying coating method. The addition of 2D perovskite effectively inhibits the ion migration of the detector, thus reducing the lowest detection limit. Consequently, the required dose rate for X-ray imaging can be significantly diminished, offering advancements in medical imaging with lower radiation exposure. AbstractX-ray detection and imaging are widely used in medical diagnosis, product inspection, security monitoring, etc. Large-scale polycrystalline perovskite thick films possess high potential for direct X-ray imaging. However, the notor...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Jingda Zhao,
Xin Wang,
Qi Cheng,
Yubing Xu,
Yuzhu Pan,
Yuwei Li,
Zhiwei Zhao,
Zhuoya Zhu,
Jing Chen,
Jun Wu,
Qing Li,
Jianming Zhou,
Byung Seong Bae,
Gabby Sarusi,
Ying Zhu,
Xiaobao Xu,
Wei Lei,
Xiaobing Zhang Tags: Research Article Source Type: research
Smart Energy Storage: W18O49 NW/Ti3C2Tx Composite ‐Enabled All Solid State Flexible Electrochromic Supercapacitors
Efficient electrochromic energy storage devices are essential for energy-saving applications. A stable W18O49 NW/Ti3C2Tx composite electrode, with 15 layers, is utilized to form a bifunctional symmetric electrochromic supercapacitor, demonstrating substantial energy and power densities with excellent stability over 4000 cycles. The device also exhibits mechanical flexibility over 100 bending cycles and fast color switching below 7 s, promising practical applications. AbstractDeveloping a highly efficient electrochromic energy storage device with sufficient color fluctuation and significant electrochemical performance is ...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Muhammad Hassan,
Pingping Li,
Ju Lin,
Zihao Li,
Muhammad S. Javed,
Zhengchun Peng,
Kemal Celebi Tags: Research Article Source Type: research
Hollow Cu2 ‐xS@NiFe Layered Double Hydroxide Core–Shell S‐Scheme Heterojunctions with Broad‐Spectrum Response and Enhanced Photothermal‐Photocatalytic Performance
In this study, Cu2-xS@NiFe-LDH hollow nanoboxes with core –shell structure are successfully prepared. The results show that Cu2-xS@NiFe-LDH with broad-spectrum response has good photothermal and photocatalytic activity, and the photocatalytic activity and stability of the catalyst are enhanced by the establishment of unique hollow structure and core –shell heterojunction structure. Transient PL spectra (TRPL) indicates that constructing Cu2-xS@NiFe-LDH heterojunction can prolong carrier lifetime obviously. Cu2-xS@NiFe-LDH shows a high photocatalytic hydrogen production efficiency (5176.93 µmol h−1 g−1), and te...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Na Zhang,
Yichao Wang,
Meijie Liu,
Tao Cheng,
Zipeng Xing,
Zhenzi Li,
Wei Zhou Tags: Research Article Source Type: research
Real ‐Time and High‐Resolution Monitoring of Neuronal Electrical Activity and pH Variations Based on the Co‐Integration of Nanoelectrodes and Chem‐FinFETs
An innovative bio-platform is introduced, integrating two classes of 3D sensors with functional nanostructures to monitor in vitro neural networks. This platform enables simultaneous recording of electrical activity in primary rat cortical neurons using passive vertical nanoprobes, along with localized pH changes utilizing Chem-FinFETs. AbstractDeveloping new approaches amenable to the measurement of neuronal physiology in real-time is a very active field of investigation, as it will offer improved methods to assess the impact of diverse insults on neuronal homeostasis. Here, the development of an in vitro bio platform is ...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Luca Bettamin,
Fabrice Mathieu,
Florent H. Marty,
Marie Charline Blatche,
Daniel Gonzalez ‐Dunia,
Elsa Suberbielle,
Guilhem Larrieu Tags: Research Article Source Type: research
Nanoribbon Yarn with Versatile Inorganic Materials
This paper presents a novel method for fabricating nanoribbon yarns from various inorganic materials. These nanoribbon yarns, composed of aligned and suspended nanoribbons, have diverse applications in chemical sensors (including H2 and green gas sensors) and green energy devices (such as water splitting electrodes and triboelectric nanogenerators). This technique broadens the possibilities for using inorganic materials in nanomaterial-based yarns. AbstractNanomaterial-based yarns have been actively developed owing to their advantageous features, namely, high surface-area-to-volume ratios, flexibility, and unusual material...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Junseong Ahn,
Yongrok Jeong,
Mingu Kang,
Jihyeon Ahn,
Suchithra Padmajan Sasikala,
Inyeong Yang,
Ji ‐Hwan Ha,
Soon Hyoung Hwang,
Sohee Jeon,
Jimin Gu,
Jungrak Choi,
Byung‐Ho Kang,
Sang Ouk Kim,
Sanha Kim,
Junhyuk Choi,
Jun‐Ho Jeong,
Tags: Research Article Source Type: research
Dual ‐Mode Imaging of Dynamic Interaction between Bubbles and Single Nanoplates during the Electrocatalytic Hydrogen Evolution Process
A dual-mode interference/total internal reflection fluorescence imaging system is developed to study the interactions between bubbles and single nanoplate electrocatalysts during the electrocatalytic hydrogen evolution reaction. Two main types of interaction are unveiled: nanobubbles moving outwards along the surface contour of the nanoplates in the initial stages, and microbubbles pinning and lifting the nanoplates in the later stages. AbstractGas bubble formation at electrochemical interfaces can significantly affect the efficiency and durability of electrocatalysts. However, obtaining comprehensive details on bubble evo...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Xin Zhao,
Houkai Chen,
Yu Cui,
Xinyu Zhang,
Rui Hao Tags: Research Article Source Type: research
An In Situ TEM Study of the Influence of Water Vapor on Reduction of Nickel Phyllosilicate – Retarded Growth of Metal Nanoparticles at Higher Rates
This study proposes that water leads to f ormation of mobile nickel hydroxide species, leading to faster rates of particle growth during and after reduction. (Source: Small)
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Savannah. J. Turner,
Nienke. L. Visser,
Remco Dalebout,
Dennie F. L. Wezendonk,
Petra E. de Jongh,
Krijn P. de Jong Tags: Research Article Source Type: research
Organic Cocrystal Alloys: From Three Primary Colors to Continuously Tunable Emission and Applications on Optical Waveguides and Displays
Through alloy engineering based on the cocrystals consisting of four electron donors with 1,2,4,5-tetracyanobenzene, a wide range of continuously tunable luminescence from 480 to 620 nm is realized. These crystalline materials are well applied to full-color displays and optical waveguides. This work offers a novel way to realize the full-color emission. AbstractMulticolor luminescence of organic fluorescent materials is an essential part of lighting and optical communication. However, the conventional construction of a multicolor luminescence system based on integrating multiple organic fluorescent materials of a single ...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Jia ‐Xuan Zhang,
Shuai Zhao,
Jia‐Hao Jiang,
Zhao‐Ji Lv,
Jiahua Luo,
Yingli Shi,
Zhenhuan Lu,
Xue‐Dong Wang Tags: Research Article Source Type: research
Band Structure Engineering Promotes Anionic Redox Reversibility of Cobalt ‐Free Li‐Rich Layered Oxides Cathodes
The incorporation of Mo with high d state orbit and Cl with low electronegativity for Co-free Li1.16Mn0.56Ni0.28O2 cathodes can narrow the band energy gap between bonding and antibonding bands via increasing the filled lower-Hubbard band (LHB) and decreasing the non-bonding O 2p energy bands, promoting the anionic redox reversibility and structural stability. AbstractLi-rich layered oxides cathodes (LLOs) have prevailed as the promising high-energy-density cathode materials due to their distinctive anionic redox chemistry. However, uncontrollable anionic redox process usually leads to structural deterioration and electroch...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Xianggang Gao,
Juanlang Guo,
Shihao Li,
Haiyan Zhang,
Yi Zhang,
Chaohong Guan,
Mengran Wang,
Yanqing Lai,
Zhian Zhang Tags: Research Article Source Type: research
Covalent Organic Framework Membranes from Oppositely Charged Nanosheets toward Efficient Desalination
A novel avenue to fabricate defect-free COF membranes through pre-assembly of oppositely-charged CONs with different properties is developed for fabrication of advanced 2D membranes for molecular separation. AbstractFabricating covalent organic framework (COF) membranes through the pre-assembly of nanosheets with different properties may open a novel avenue to the fabrication of advanced 2D membranes. Herein, COF membranes are fabricated using oppositely-charged COF nanosheets (CONs). Negatively-charged CONs and positively-charged CONs are pre-assembled through simple physical mixing, yielding the CONs with an aspect ratio...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Ziting Zhu,
Hongjian Wang,
Cheng Ling,
Yue Zhang,
Jiashuai Zhao,
Yuhan Wang,
Junyi Zhao,
Fusheng Pan,
Chunlei Wang,
Zhongyi Jiang Tags: Research Article Source Type: research
In Situ Synthesis of CuxO/N Doped Graphdiyne with Pyridine N Configuration for Ammonia Production via Nitrate Reduction
CuxO/N-doped graphdiyne with pyridine N configuration are in situ prepared in one pot. Pyridinic N in GDY and CuxO synergistically allowed to achieve NH3 faradaic efficiencies greater than 85% both in a commercial H-cell and an anion exchange membrane (AEM) flow electrolyzer. The high selectivity and production rate in this device configuration demonstrate its potential for industrial application. AbstractElectroreduction of nitrate to ammonia provides an interesting pathway for wastewater treatment and valorization. Cu-based catalysts are active for the conversion of NO3− to NO2− but suffer from an inefficient hydroge...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Jian Li,
Roberto Valenza,
Sophia Haussener Tags: Research Article Source Type: research
In Situ Construction of Inorganics ‐Rich Cathode‐Electrolyte Interface toward Long‐Life Prussian White Cathode
A novel electrolyte is designed by introducing cresyl diphenyl phosphate and adiponitrile as additives to construct a stable and robust CEI layer with rich inorganic species, which can effectively suppress structure degradation of Prussian white during the cycling process and notably extend the cycling life of the PW cathode. AbstractPrussian white (PW) is one of the most promising candidates as a cathode for sodium-ion batteries (SIBs) because of its high theoretical capacity, excellent rate performance, and low production cost. However, PW materials suffer severe capacity decay during long-term cycling. In this work, a r...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Xinxia Jian,
Xiaowei Liu,
Chao Yang,
Jingjing Xie,
Wenxi Hu,
Youcai Zhang,
Hua Yan,
Jin Han,
Ya You Tags: Research Article Source Type: research
A new In Situ Oxidized 2D Layered MnBi2Te4 Cathode for High ‐Performance Aqueous Zinc‐Ion Battery
A novel oxidized 2D layered MnBi2Te4 is used as the cathode material for aqueous zinc-ion batteries for the first time. Due to the properties of oxidized 2D layered MnBi2Te4, such as large interlayer spacing and a low energy barrier for zinc ion diffusion, aqueous zinc-ion batteries have demonstrated excellent performance. AbstractRecently, aqueous zinc ion batteries (AZIBs) with the superior theoretical capacity, high safety, low prices, and environmental protection, have emerged as a contender for advanced energy storage. However, challenges related to cathode materials, such as dissolution, instability, and structural c...
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Jiaao Dai,
Shaojun Zhang,
Fei Wang,
Li Wen,
Yuhao Sun,
Ke Ren,
Yaohua Xu,
Wei Zeng,
Siliang Wang Tags: Research Article Source Type: research
Engineering Nitrogen ‐Doped Carbon Quantum Dots: Tailoring Optical and Chemical Properties through Selection of Nitrogen Precursors
This study, therefore, provides essential guidance on the selection of nitrogen precursors for NCQD customization for diverse applications. (Source: Small)
Source: Small - March 29, 2024 Category: Nanotechnology Authors: Kiem G. Nguyen,
Matej Hu š,
Ioan‐Alexandru Baragau,
James Bowen,
Tobias Heil,
Adela Nicolaev,
Laura Elena Abramiuc,
Andrei Sapelkin,
Muhammad Tariq Sajjad,
Suela Kellici Tags: Research Article Source Type: research
