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Total 3421 results found since Jan 2013.
Modulating the Charge Transfer Plasmon in Bridged Au Core ‐Satellite Homometallic Nanostructures
Utilizing the buffer effect of the PDA shell for Au atom diffusion, controlled synthesis of bridged Au core-satellite (µ-CS) structures with tunable bridges are successfully achieved. As a result of the effective modulation of the CTP resonance energy, the LSPR absorptions of theµ-CS structures are continuously tuned within the NIR spectral range (from 900 to>1300 nm). AbstractThe localized surface plasmon resonance (LSPR) is one of the important properties for noble metal nanoparticles. Tuning the LSPR on demand thus has attracted tremendous interest. Beyond the size and shape control, manipulating intraparticle co...
Source: Small - April 14, 2023 Category: Nanotechnology Authors: Yun Wang,
Jia Jia,
Jie Zhang,
Ruixue Xiao,
Wenjia Xu,
Yuhua Feng Tags: Research Article Source Type: research
Mycosynthesis of Zinc Oxide Nanoparticles Exhibits Fungal Species Dependent Morphological Preference (Small 15/2023)
Mycosynthesis of ZnO NanoparticlesIn article number2205799, George D. Bachand and co-workers describe a species dependency in the synthesis of ZnO nanoparticles, resulting in the formation of three distinct morphologies. These morphologies may be related to differences in the biochemical composition of the exudates including organic acids and proteins that control the nucleation and growth of nanoparticles. (Cover art by Christopher Lynne, christopher@visualizetorealize.com.)
Source: Small - April 13, 2023 Category: Nanotechnology Authors: Nathan G. Brady,
Shamus L. O'Leary,
Garrett C. Moormann,
Manish K. Singh,
John Watt,
George D. Bachand Tags: Back Cover Source Type: research
Enhanced Interfacial Magnetization is Responsible for the Negative Capacity Fading of Cobalt Ditelluride Anodes for Lithium Storage
Interface magnetization mechanism is employed to synthesize CoTe2 anodes with ultra-high discharging capacity above the theoretical value. Negative capacity fading during cycling is observed and demonstrated, which is ascribed to the enhanced interface magnetization with the continuous refinement of the nanoparticles. The proposed strategy can be further extended to obtain other high-performance ferromagnetic metal based electrodes for ion storage applications. AbstractIn lithium-ion batteries (LIBs), the stabilized capacities of transition metal compound anodes usually exhibit higher values than their theoretical values d...
Source: Small - April 10, 2023 Category: Nanotechnology Authors: Huilin Fan,
Guangyu Zhou,
Jinliang Li,
Yanyan Zhao,
Lu Bai,
Huaiqiu Chang,
Runguo Zheng,
Zhiyuan Wang,
Yanguo Liu,
Hongyu Sun Tags: Research Article Source Type: research
Tuning Nanobodies ’ Bioactivity: Coupling to Ultrasmall Gold Nanoparticles Allows the Intracellular Interference with Survivin
The use of ultrasmall gold nanoparticle scaffolds for conjugation of multiple nanobodies targeting the oncologically relevant protein Survivin not only enables efficient internalization of the emerging SuN-N construct but also Survivin crosslinking and deceleration of mitotic progression of cancer cells —a strategy that might in general improve nanobodies’ therapeutic applicability. AbstractNanobodies are highly affine binders, often used to track disease-relevant proteins inside cells. However, they often fail to interfere with pathobiological functions, required for their clinical exploitation. Here, a nanobody targe...
Source: Small - April 10, 2023 Category: Nanotechnology Authors: Paul Stahl,
Sebastian Kollenda,
Jonas Sager,
Laura Schmidt,
Martin A. Schroer,
Roland H. Stauber,
Matthias Epple,
Shirley K. Knauer Tags: Research Article Source Type: research
3D Hierarchical ‐Architectured Nanoarray Electrode for Boosted and Sustained Urea Electro‐Oxidation
3D self-supported hierarchical-architectured nanoarray electrode (CC/MnNi@NC) in which 1D N-doped carbon nanotubes with 0D MnNi nanoparticles encapsulation are intertwined into 2D nanosheet aligned on the carbon cloth is proposed for prominently boosted and sustained UOR electrocatalysis. And the fundamental mechanisms are illuminated by a combination of experimental investigations and theoretical calculations. AbstractExploring active and durable Ni-based materials with optimized electronic and architectural engineering to promote the urea oxidation reaction (UOR) is pivotal for the urea-related technologies. Herein a 3D ...
Source: Small - April 10, 2023 Category: Nanotechnology Authors: Ping Li,
Wenqin Li,
Yuqi Huang,
Quhua Huang,
Shuanghong Tian Tags: Research Article Source Type: research
Calcium Phosphate ‐Based Nanoformulation Selectively Abolishes Phenytoin Resistance in Epileptic Neurons for Ceasing Seizures
This study offers an approach for effective therapeutic intervention against drug-resistant epilepsy.
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Qiwen Guan,
Xuan Wang,
Danfeng Cao,
Menghuan Li,
Zhong Luo,
Xiaoyuan Mao Tags: Research Article Source Type: research
Site ‐Selective Chiral Growth of Anisotropic Au Triangular Nanoplates for Tuning the Optical Chirality
This work demonstrates a controllable site-selective chiral growth strategy with two distinct underlying growth pathways for creating anisotropic chiral Au triangular nanoplates of unconventional geometric chirality. By maneuvering the interplay of chiral molecules and surfactants, the growth pathway can be modulated, giving rise to chiral nanostructures with increasing architectural complexity and intriguing optical chirality. AbstractSite-selective chiral growth of anisotropic nanoparticles is of great importance to realize the plasmonic nanostructures with delicate geometry and desired optical chirality; however, it rem...
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Yunlong Tao,
Lichao Sun,
Chuang Liu,
Guizeng Yang,
Xuehao Sun,
Qingfeng Zhang Tags: Research Article Source Type: research
Carbon Nanotube ‐Reinforced Dual Carbon Stress‐Buffering for Highly Stable Silicon Anode Material in Lithium‐Ion Battery
Carbon nanotube-reinforced dual carbon stress-buffering in the polyhedral silicon/carbon microparticles is developed to significantly relieve the stress concentration during silicon lithiation, which enables robust and stable architecture for long-term cycling test at a high rate in the lithium-ion battery. The unique structure can also provide fast lithium ion diffusion and electron transport pathway. AbstractSilicon (Si) anode suffers from huge volume expansion which causes poor structural stability in terms of electrode material, solid electrolyte interface, and electrode, limiting its practical application in high-ener...
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Xiaoming Fan,
Ting Cai,
Shuying Wang,
Zeheng Yang,
Weixin Zhang Tags: Research Article Source Type: research
Intracellular Construction of Cathepsin B ‐Guided Gadolinium Nanoparticles for Enhanced T2‐Weighted MR Tumor Imaging
A “smart” Gd-containing magnetic resonance (MR) contrast agent VC-Gd-CBT is employed here to realize the cathepsin B (CTSB)-guided intracellular self-assembly of Gd-containing nanoparticles that could distinctly enhance the T2 MR contrast of CTSB-overexpressing tumors at 9.4 T. VC-Gd-CBT hence has the potential to be employed as a T2 contrast agent for the clinical diagnosis of cancers at an early stage. AbstractMagnetic resonance imaging (MRI) is a superior and noninvasive imaging technique with unlimited tissue penetration depth and superb spatiotemporal resolution, however, using intracellular self-assembly of Gd-...
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Mengxing Wei,
Lulu Wang,
Yanfang Wang,
Tong Zhang,
Chenchen Wang,
Chengfan Wu,
Changlin Tian,
Gaolin Liang,
Yue Yuan Tags: Research Article Source Type: research
Watermelon Flesh ‐Like Ni3S2@C Composite Separator with Polysulfide Shuttle Inhibition for High‐Performance Lithium‐Sulfur Batteries
In this work, Ni3S2@C is generated using an improved one-step hydrothermal technique. The synergistic effect of Ni3S2 and 3D carbon achieves the aim of adsorbing and anchoring lithium polysulfides (LiPSs), increasing Li-ions diffusion, and accelerating the kinetics of LiPSs transformation. The “adsorption-diffusion-conversion” method may be implemented efficiently by using the synergy between the catalyst and the 3D network carbon. AbstractThe shuttle effect limits the practical application of lithium-sulfur (Li-S) batteries with high specific capacity and cheap price. Herein, a three-dimensional carbon substrate conta...
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Bo Zhang,
Jiaxin Qie,
Xuefei Liu,
Wenju Wang,
Yuqian Li,
Yongan Cao,
Yangyang Mao,
Jiaxuan Zou,
Jiyuan You Tags: Research Article Source Type: research
Size ‐Defined Ru Nanoclusters Supported by TiO2 Nanotubes Enable Low‐Concentration Nitrate Electroreduction to Ammonia with Suppressed Hydrogen Evolution
Ru nanoclusters supported on TiO2 nanotubes demonstrates enhanced intrinsic activity and selectivity for the nitrate electroreduction in comparison to Ru nanoparticles. This improvement can be attributed to the strong metal/substrate interaction and the size-dependent regulation of hydrogen adsorption. The observed size effect provides valuable guidance on the development of efficient catalysts for sustainable ammonia production. AbstractAnthropogenic nitrate pollution has an adverse impact on the environment and human health. As part of a sustainable nitrate management strategy, electrochemical denitrification is studied ...
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Wenxi Qiu,
Minghao Xie,
Pengfei Wang,
Taotao Gao,
Ran Li,
Dan Xiao,
Zhaoyu Jin,
Panpan Li Tags: Research Article Source Type: research
A Selective Nano Cell Cycle Checkpoint Inhibitor Overcomes Leukemia Chemoresistance
This study offers new insights into designing selective cell cycle checkpoint inhibitors for biomedical applications.
Source: Small - April 8, 2023 Category: Nanotechnology Authors: Jie Sun,
Fan Xia,
Shaoqi Zhang,
Bo Zhang,
Yunan Guan,
Xi Hu,
Pengpeng Xue,
Shengfei Yang,
Yan Zhou,
Daishun Ling,
Fangyuan Li Tags: Research Article Source Type: research
Binary Sulfiphilic Nickel Boride on Boron ‐Doped Graphene with Beneficial Interfacial Charge for Accelerated Li–S Dynamics
This study provides a facile strategy for transition metal borides and reveals the effect of heterostructure on catalytic and adsorption activity for LiPSs, offering a new viewpoint to apply boride in LSBs.
Source: Small - April 7, 2023 Category: Nanotechnology Authors: Yu Wang,
Peng Wang,
Jia Yuan,
Ning Song,
Xuguang An,
Xiaojian Ma,
Jinkui Feng,
Baojuan Xi,
Shenglin Xiong Tags: Research Article Source Type: research
Synergistic Effect of N ‐NiMoO4/Ni Heterogeneous Interface with Oxygen Vacancies in N‐NiMoO4/Ni/CNTs for Superior Overall Water Splitting
By a simple hydrothermal-H2 calcination method, the secondary aggregated metal nanoparticles with heterojunctions and abundant oxygen vacancies are loaded on carbon nanotubes (N-NiMoO4/Ni/CNTs). Operando Raman results reveal that Ni2+-OH* and C-H* as the active sites of HER process, γ-NiOOH serves as the active intermediates of OER process for N-NiMoO4/Ni/CNTs. AbstractThe exploring of economical, high-efficiency, and stable bifunctional catalysts for hydrogen evolution and oxygen evolution reactions (HER/OER) is highly imperative for the development of electrolytic water. Herein, a 3D cross-linked carbon nanotube support...
Source: Small - April 7, 2023 Category: Nanotechnology Authors: Guang ‐Lan Li,
Xiang‐Yue Qiao,
Ying‐Ying Miao,
Tian‐Yu Wang,
Fei Deng Tags: Research Article Source Type: research
Sequential ‐Dependent Synthesis of Bimetallic Silver‐Chromium Nanoparticles for Multichannel Sensing, Logic Computing, and 3 in 1 Information Protection
Bimetallic silver-chromium nanoparticles are synthesized in a simple, rapid, sequence-dependent method, and it can be used for multichannel dynamic selective detection of hypochlorite and realizing the advanced 3 in 1 information protection, including authorization (corresponding to molecular keypad lock), encryption, and steganography in three dimensions and types. AbstractBimetallic nanomaterials (BNMs) have been used in sensing, biomedicine, and environmental remediation, but their multipurpose and comprehensive applications in molecular logic computing and information security protection have received little attention....
Source: Small - April 7, 2023 Category: Nanotechnology Authors: Qing Yu Liu,
Ying Wu,
Zhen Qi Bu,
Min Xia Quan,
Jiao Yang Lu,
Wei Tao Huang Tags: Research Article Source Type: research
