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Total 3421 results found since Jan 2013.
Imparting Outstanding Dispersibility to Nanoscaled 2D COFs for Constructing Organic Solvent Forward Osmosis Membranes
Covalent organic framework (COF) nanoparticles with abundant amine groups, good dispersity and homogeneous morphology are synthesized. The as-prepared COFs are utilized to modify the physicochemical characteristics of the polyamide (PA) network. The resultant thin-film nanocomposite membranes, comprising an interlayer of COF nanoparticles and a top skin of PA layer, achieve high recycling ability for pharmaceutical synthetic organic solvents. AbstractIn the context of thin-film nanocomposite membranes with interlayer (TFNi), nanoparticles are deposited uniformly onto the support prior to the formation of the polyamide (PA)...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Li Chen,
Cailong Zhou,
Tianyi Yang,
Wei Zhou,
Ying Chen,
Linghao Wang,
Chenyang Lu,
Lichun Dong Tags: Research Article Source Type: research
Solid ‐State Electron Transport Through Carbon Dots Junctions: The Role of Boron and Phosphorus Doping
This work reports the first exploration of the electronic transport properties across single carbon dots monolayer in the solid-state. It is shown that the conduction across the carbon dots significantly increases upon doping the nanoparticle with Phosphorous or Boron. The increase in conduction is ascribed to changes in the chemical structure happening during the synthesis of the carbon dot. AbstractCarbon dots (CDs) are a new class of nanoparticles that gained widespread attention recently because of their easy preparation, water solubility, biocompatibility, and bright luminescence, leading to their integration in vario...
Source: Small - March 18, 2023 Category: Nanotechnology Authors: Yuval Toren,
Ayelet Vilan,
Nadav Amdursky Tags: Research Article Source Type: research
Electrochemical Self ‐Healing Nanocrystal Electrodes for Ultrastable Potassium‐Ion Storage
A Cu3BiS3 anode material with a self-healing mechanism for potassium ion storage devices is proposed, which shows an electrochemical reconstruction of phase reversibility and morphological reversibility. The self-healing process can suppress the shuttle effect and avoid the agglomeration of Bi nanoparticles. AbstractThe unique properties of self-healing materials hold great potential in battery systems, which can exhibit excellent deformability and return to its original shape after cycling. Herein, a Cu3BiS3 anode material with self-healing mechanisms is proposed for use in ultrastable potassium-ion battery (PIB) and pota...
Source: Small - March 17, 2023 Category: Nanotechnology Authors: Wei ‐Cheng Lin,
Yi‐Chun Yang,
Hsing‐Yu Tuan Tags: Research Article Source Type: research
Self ‐Disguised Nanospy for Improving Drug Delivery Efficiency via Decreasing
Nanoscale drug carriers play a crucial role in reducing side effects of chemotherapy drugs. However, the MPS and the drug protonation after NPs burst release still limit the drug delivery efficiency. In this work, a self-disguised Nanospy is designed to overcome this problem. AbstractNanoscale drug carriers play a crucial role in reducing side effects of chemotherapy drugs. However, the mononuclear phagocyte system (MPS) and the drug protonation after nanoparticles (NPs) burst release still limit the drug delivery efficiency. In this work, a self-disguised Nanospy is designed to overcome this problem. The Nanospy is compos...
Source: Small - March 17, 2023 Category: Nanotechnology Authors: Kuo Zhang,
Zi ‐Qi Wang,
Zhongqing Liu,
Tianrui Qu,
Zhishuai Zhang,
Fanshu Zeng,
Hongjian Song,
Qing Shi,
Zhijian Kang,
Bogong Chen,
Peng Dai,
Pengyu Guo,
Zhichao Tong,
Wanhai Xu Tags: Research Article Source Type: research
Hydroxyapatite ‐Derived Heterogeneous Ru‐Ru2P Electrocatalyst and Environmentally‐Friendly Membrane Electrode toward Efficient Alkaline Electrolyzer
Ru-Ru2P heterogeneous nanoparticles are synthesized via an environmentally friendly in situ green phosphating strategy. The strong electronic redistribution occurs at the heterointerface of Ru-Ru2P, leading to accelerated hydrogen adsorption/desorption kinetics and possessing excellent hydrogen evolution reaction performance. Hydroxyapatite nanowires are used as alkaline membranes to assemble environmentally friendly membrane electrodes with a sandwich structure for use in the alkaline electrolyzer. AbstractAlkaline membrane water electrolysis is a promising production technology, and advanced electrocatalyst and membrane ...
Source: Small - March 17, 2023 Category: Nanotechnology Authors: Qingquan Yu,
Wanqiang Yu,
Yujie Wang,
Jietong He,
Yuke Chen,
Haifeng Yuan,
Ruiying Liu,
Junjian Wang,
Shunyao Liu,
Jiayuan Yu,
Hong Liu,
Weijia Zhou Tags: Research Article Source Type: research
Development and Characterization of a 96 ‐Well Exposure System for Safety Assessment of Nanomaterials
In this study, a 96-well exposure system for safety assessment of nanomaterials is developed and characterized using an air –liquid interface lung epithelial model. In addition to chemicals and drugs, nanomaterials can be exposed sequentially with high efficiency. This allows new perspectives on in vivo-like and animal-free approaches for chemical and pharmaceutical safety assessment, in line with the 3R principle. AbstractIn this study, a 96-well exposure system for safety assessment of nanomaterials is developed and characterized using an air –liquid interface lung epithelial model. This system is designed for sequen...
Source: Small - March 16, 2023 Category: Nanotechnology Authors: Yvonne Kohl,
Michelle M üller,
Marielle Fink,
Marc Mamier,
Siegfried Fürtauer,
Roland Drexel,
Christine Herrmann,
Stephan Dähnhardt‐Pfeiffer,
Ramona Hornberger,
Marius I. Arz,
Christoph Metzger,
Sylvia Wagner,
Sven Sängerlaub,
Heiko Bri Tags: Research Article Source Type: research
Ultrathin Nitrogen ‐Doped Carbon Encapsulated Ni Nanoparticles for Highly Efficient Electrochemical CO2 Reduction and Aqueous Zn‐CO2 Batteries
The synergistic effect between nitrogen-doped carbon shells and Ni nanoparticles promoting the CO2 electrochemical reduction to CO with industrial current density. AbstractElectrochemical CO2 reduction reaction (CO2RR), powered by renewable electricity, has attracted great attention for producing high value-added fuels and chemicals, as well as feasibly mitigating CO2 emission problem. Here, this work reports a facile hard template strategy to prepare the Ni@N-C catalyst with core –shell structure, where nickel nanoparticles (Ni NPs) are encapsulated by thin nitrogen-doped carbon shells (N-C shells). The Ni@N-C catalyst ...
Source: Small - March 15, 2023 Category: Nanotechnology Authors: Fangyuan Wang,
Guan Wang,
Peilin Deng,
Yao Chen,
Jing Li,
Daoxiong Wu,
Zhitong Wang,
Chongtai Wang,
Yingjie Hua,
Xinlong Tian Tags: Research Article Source Type: research
Carrier ‐Free ATP‐Activated Nanoparticles for Combined Photodynamic Therapy and Chemotherapy under Near‐Infrared Light (Small 11/2023)
Carrier-Free ATP-Activated NanoparticlesIn article number2205825, Wen Sun and co-workers develop ingenious adenosine triphosphate (ATP)-activated nanoparticles (CDNPs) that are directly self-assembled from photosensitizer (Cy-I) and amphiphilic Cd(II) complex (DPA-Cd). In cancer cells, CDNPs are disintegrated by ATP to release Cy-I for generating single oxygen under 808 nm light and DPA-Cd concurrently for chemotherapy.
Source: Small - March 15, 2023 Category: Nanotechnology Authors: Zehou Su,
Dongmei Xi,
Yingchao Chen,
Ran Wang,
Xiaolong Zeng,
Tao Xiong,
Xiang Xia,
Xiang Rong,
Ting Liu,
Wenkai Liu,
Jianjun Du,
Jiangli Fan,
Xiaojun Peng,
Wen Sun Tags: Frontispiece Source Type: research
Cascade Delivery to Golgi Apparatus and On ‐Site Formation of Subcellular Drug Reservoir for Cancer Metastasis Suppression (Small 11/2023)
Cancer Metastasis SuppressionIn article number2204747, Yuan Huang and co-workers develop a strategy that enhances the targetability and retention of nano-drug in Golgi apparatus (GA) for cancer metastasis suppression. Hybrid cell membrane-coated nanoparticles cascade to delivering cargo into GA, and in return, loaded-Monensin, an exocytosis inhibitor, blocks nano-drug exocytosis like steel net. With GA retention of nano-drug and GA dysfunction, this strategy suppresses metastasis initialization via multiple GA-related pathways.
Source: Small - March 15, 2023 Category: Nanotechnology Authors: Liqiang Chen,
Peihang Jiang,
Xinran Shen,
Jiayan Lyu,
Chendong Liu,
Lian Li,
Yuan Huang Tags: Cover Picture Source Type: research
Template ‐Directed Polymerization of Binary Acrylate Monomers on Surface‐Activated Lignin Nanoparticles in Toughening of Bio‐Latex Films
Tough bio-latex films are fabricated by core –shell free-radical emulsion polymerization from a structural template of allylated lignin nanoparticles (A-LNPs), which are enriched with tunable polymerization-active anchors for modulating interfacial recognition of acrylate monomer and latex colloids coalescence. AbstractFabricating bio-latex colloids with core –shell nanostructure is an effective method for obtaining films with enhanced mechanical characteristics. Nano-sized lignin is rising as a class of sustainable nanomaterials that can be incorporated into latex colloids. Fundamental knowledge of the correlation bet...
Source: Small - March 15, 2023 Category: Nanotechnology Authors: Luyao Wang,
Qingbo Wang,
Emil Rosqvist,
Jan ‐Henrik Smått,
Qiwen Yong,
Lippo Lassila,
Jouko Peltonen,
Thomas Rosenau,
Martti Toivakka,
Stefan Willför,
Patrik Eklund,
Chunlin Xu,
Xiaoju Wang Tags: Research Article Source Type: research
Rationally Integrating 2D Confinement and High Sodiophilicity toward SnO2/Ti3C2Tx Composites for High ‐Performance Sodium‐Metal Anodes
The new accordion-like 2D material Ti3C2Tx has excellent electrical conductivity but lack of sodiophilic sites. The confinement effect is achieved by introducing sodiophilic SnO2 nanoparticles that guide the deposition of sodium metal into the interlayer space of the 2D accordion-like Ti3C2Tx, similar to applying jam to the middle of a sandwich. AbstractThe metallic sodium (Na) is characterized by high theoretical specific capacity, low electrode potential and abundant resources, and its advantages manifests itself as a promising candidate anode of sodium metal batteries (SMBs). However, the vaporization during the plating...
Source: Small - March 14, 2023 Category: Nanotechnology Authors: Zhipeng Li,
Yiming Zhang,
Haotian Guan,
Sikai Meng,
Yangfan Lu,
Jin Wang,
Guangsheng Huang,
Xin Li,
Jingqin Cui,
Qian Li,
Qichun Zhang,
Baihua Qu Tags: Research Article Source Type: research
2D MoS2 Nanosheets Induce Ferroptosis by Promoting NCOA4 ‐Dependent Ferritinophagy and Inhibiting Ferroportin
This study reports that MoS2 nanosheets induces ferroptosis in vivo and in vitro, which is caused by the nanosheet themselves rather than by the dissolved ions. MoS2 nanosheets induce ferroptosis in epithelial (BEAS-2B) and macrophage (RAW264.7) cells due to nuclear receptor coactivator 4 (NCOA4)-dependent excusive ferritinophagy and the inhibition of ferroportin-1 (FPN). In this process, most of the MoS2 nanosheets enter the cells via macropinocytosis and are localized to the lysosome, contributing to an increase in the lysosomal membrane permeability. At the same time, NCOA4-dependent ferritinophagy is activated, and fer...
Source: Small - March 13, 2023 Category: Nanotechnology Authors: Bingyan Liu,
Wei Jiang,
Yiyuan Ye,
Ling Liu,
Xiaoran Wei,
Qiu Zhang,
Baoshan Xing Tags: Research Article Source Type: research
Engineering Dynamic Defect of CeIII/CeIV ‐Based Metal‐Organic Framework through Ultrasound‐Triggered Au Electron Trapper for Sonodynamic Therapy of Osteomyelitis
Ultrasound and Au nanoparticles on the cerium-based metal-organic framework can synergistically attribute to the valence change of Ce nodes and subsequently lead to defect formation. This ultrasound-triggered Au electron trapper can improve the sonodynamic therapy efficacy for bacteria eradication. AbstractDefect engineering is an important way to tune the catalytic properties of metal-organic framework (MOF), yet precise control of defects is difficult to achieve. Herein, a cerium-based MOF (CeTCPP) is decorated with Au nanoparticles. Under ultrasound irradiation, Au nanoparticles can precisely turn 1/3 of the pristine Ce...
Source: Small - March 13, 2023 Category: Nanotechnology Authors: Qiyao Zheng,
Xiangmei Liu,
Song Gao,
Zhenduo Cui,
Shuilin Wu,
Yanqin Liang,
Zhaoyang Li,
Yufeng Zheng,
Shengli Zhu,
Hui Jiang,
Ruqiang Zou Tags: Research Article Source Type: research
A Strategic Approach to Design Multi ‐Functional RGB Luminescent Security Pigment Based Golden Ink with Myriad Security Features to Curb Counterfeiting of Passport
Multifunctional red-green-blue (RGB) luminescent security pigment formulated golden ink is developed by using the ratiometric combination of different luminescent materials which emit red, green and blue emissions, when excited via 254, 365 and 980 nm NIR wavelengths, respectively. Hence, the outstanding multi-level security features with a golden appearance in visible light create a new path to curb the counterfeiting of passports. AbstractAuthentication and verification of the most important government issued identity proof, i.e. passport has become more complex and challenging in the last few decades due to various inno...
Source: Small - March 12, 2023 Category: Nanotechnology Authors: Kanika,
Garima Kedawat,
Shubhda Srivastava,
Bipin Kumar Gupta Tags: Research Article Source Type: research
All ‐MXene‐Printed RF Resonators as Wireless Plant Wearable Sensors for In Situ Ethylene Detection
The all-MXene-printed radio frequency (RF) resonators are developed to detect plant ethylene emission in situ and wirelessly. Basing on screen printable additive-free MXene ink, flexible MXene electronics and uniform palladium nanoparticles are fabricated for selective and sensitive ethylene detection, shedding light on scalable manufacturing of plant wearable devices for precision agriculture and food industry. AbstractPrinted flexible electronics have emerged as versatile functional components of wearable intelligent devices that bridge the digital information networks with biointerfaces. Recent endeavors in plant wearab...
Source: Small - March 11, 2023 Category: Nanotechnology Authors: Xin Li,
Rujing Sun,
Jingying Pan,
Zhenghan Shi,
Jingjiang Lv,
Zijian An,
Yan He,
Qingmei Chen,
Ray P.S. Han,
Fenni Zhang,
Yanli Lu,
Hao Liang,
Qingjun Liu Tags: Research Article Source Type: research
