Architecture Controls Phonon Propagation in All ‐Solid Brush Colloid Metamaterials (Small 13/2024)
Brush Particle SolidsThe self-assembly of polymer modified particles provides a path towards micro-structured hybrid materials that feature hybridization gaps, i.e., phononic band gaps that are robust against defect formation. The combination of Brillouin scattering and theory reveals that the formation of hybridization gaps is sensitive to the structure of polymers at interfaces and provides guidelines to render brush based colloids a platform for the self-assembly of efficient phononic materials. More in article number2304157, George Fytas and co-workers. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Yu Cang,
Rebecca Sainidou,
Pascal Rembert,
Krzysztof Matyjaszewski,
Michael Bockstaller,
Bartlomiej Graczykowski,
George Fytas Tags: Back Cover Source Type: research
Optimizing ZnO –Quantum Dot Interface with Thiol as Ligand Modification for High‐Performance Quantum Dot Light‐Emitting Diodes (Small 13/2024)
Quantum Dot Light-Emitting DiodesIn article number2307298, Xiao Wei Sun and co-workers improved quantum dot light-emitting diodes (QLEDs) by thiol ligands of ZnO. ZnO nanocrystals were modified to reduce electron excess without hindering charge injection. This modification strategy significantly enhanced QLED performance, achieving an external quantum efficiency of over 23% and a long lifetime of>120,000 hours. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Siqi Jia,
Menglei Hu,
Mi Gu,
Jingrui Ma,
Depeng Li,
Guohong Xiang,
Pai Liu,
Kai Wang,
Peyman Servati,
Wei Kun Ge,
Xiao Wei Sun Tags: Inside Back Cover Source Type: research
hROS ‐Responsive Behavior for Long‐Term Stability of Cellulosic Gold Nanoclusters (Small 13/2024)
Gold NanoclustersInspired by the unique structure of octopus suckers arranged directionally on its tentacles, a series of gold nanoclusters (GNCs) grown in situ along cellulose nanocrystals are synthesized. The fluorescence properties and oxidative properties of GNCs are investigated, and a generalized strategy for constructing DCGRFP is provided. More In article number2307770, Hongxiang Zhu, Hui He, and co-workers. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Shanshan Yu,
Haoyuan Li,
Yujie Duan,
Siyuan Xia,
Hui Liu,
Huanhuan Huang,
Hongxiang Zhu,
Lei Wang,
Hui He,
Shuangfei Wang Tags: Frontispiece Source Type: research
Colorimetric Detection of HER2 ‐Overexpressing‐Cancer‐Derived Exosomes in Mouse Urine Using Magnetic‐Polydiacetylene Nanoparticles (Small 13/2024)
Colorimetric DetectionIn article number2307262, Eun-Kyung Lim, Seungjoo Haam, and co-workers illustrate that blue HER2-MPDA combines with HER2 overexpressing exosomes, changes color to red, and is captured and separated by a magnet. Magnetically concentrated red HER2-MPDA can be seen with the naked eye. The left side is colored red to distinguish it from the blue right side. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Ryunhyung Kim,
Byeonggeol Mun,
Seongjae Lim,
Chaewon Park,
Jinyoung Kim,
Jaewook Lim,
Hyein Jeong,
Hye Young Son,
Hyun Wook Rho,
Eun ‐Kyung Lim,
Seungjoo Haam Tags: Frontispiece Source Type: research
Enhanced Mitochondrial Targeting and Inhibition of Pyroptosis with Multifunctional Metallopolyphenol Nanoparticles in Intervertebral Disc Degeneration (Small 13/2024)
Intervertebral Disc DegenerationIn article number2308167, Pooyan Makvandi, Yunlong Zhou, Aimin Wu, and co-workers prepared a multifunctional metal polyphenol nanoparticle that exhibited the ability to escape lysosomal capture and effectively targeted mitochondria to scavenge excess reactive oxygen species. The results of in vitro and in vivo experiments showed that the nanoparticles retarded disc degeneration by inhibiting Pyroptosis and maintaining the metabolic homeostasis of the extracellular matrix in the nucleus pulposus. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Hao Zhou,
Qiuping Qian,
Qizhu Chen,
Tao Chen,
Chenyu Wu,
Linjie Chen,
Zhiguang Zhang,
Ouqiang Wu,
Yuxin Jin,
Xinzhou Wang,
Zhenyu Guo,
Jing Sun,
Jun Zhang,
Shuying Shen,
Xiangyang Wang,
Morgan Jones,
Moonis Ali Khan,
Pooyan Makvandi,
Yun Tags: Inside Front Cover Source Type: research
Damage Tolerance of Superhydrophobic Coatings with Binary Cooperative Cells for Water Harvesting (Small 13/2024)
Superhydrophobic CoatingsIn article number2307561, Youfa Zhang and co-workers develop a binary cooperative cell design that eliminates the mutual exclusion between the features of functions and mechanical stability of superhydrophobic coatings. The coating is structurally strong and exhibits almost all aspects of enhancement including ultra-durability and over 1000% enhancement in water harvesting. From a broad perspective, the strategy provides a generic design blueprint for engineering ultra-durable coatings for a wide range of applications. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Wancheng Gu,
Yage Xia,
Long Li,
Yu Zhang,
Xuequn Wu,
Linwei Gu,
Yanzheng Ji,
Wei Wang,
Weilin Deng,
Xinyu Lv,
Xikui Wang,
Xinquan Yu,
Youfa Zhang Tags: Cover Picture Source Type: research
Masthead: (Small 13/2024)
(Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Tags: Masthead Source Type: research
Acidity ‐Aided Surface Modification Strategy to Enhance In Situ MnO2 Deposition for High Performance Zn‐MnO2 Battery Prototypes
This study optimizes electrolyte pH to extend cycling by influencing two-electron MnO2/Mn2+ reaction for high voltage operation. It integrates a carbon-based current collector with a high density of structural defects for enhanced cycling. With impressive performance and minimal decay over 400 cycles in a flooded stack-type cell architecture, these batteries present a promising practical solution for large-scale energy storage applications. AbstractZn –MnO2 batteries offer cost-effective, eco-friendly, and efficient solutions for large-scale energy storage applications. However, challenges, like irreversible cathode reac...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Manas Ranjan Panda,
Sally El Meragawi,
Meysam Sharifzadeh Mirshekarloo,
Wanqing Chen,
Mahdokht Shaibani,
Mainak Majumder Tags: Research Article Source Type: research
Unraveling the Electrocatalytic Activity in HMF Oxidation to FDCA by Fine ‐Tuning the Degree of NiOOH Phase Over Ni Nanoparticles Supported on Graphene Oxide
Systematic creation of the high valence state of the NiOOH (Ni3+) phase derived from the surface reconstruction of Ni (Ni0) metal allows to understand the crucial impact of NiOOH species on the electrocatalytic pathway of HMF electrooxidation, leading to the new concept for rationally designing the electrocatalyst for electrooxidation. AbstractThe development of an efficient electrocatalyst for HMF oxidation to FDCA has been in the early stages. Herein, the NiNPs/GO-Ni-foam is fabricated as an electrocatalyst for FDCA production. However, the electrocatalytic performance of the untreated NiNPs/GO-Ni-foam is observed with m...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Sorasak Klinyod,
Nuttapon Yodsin,
Mai Thanh Nguyen,
Zikkawas Pasom,
Sunpet Assavapanumat,
Marisa Ketkaew,
Pinit Kidkhunthod,
Tetsu Yonezawa,
Supawadee Namuangruk,
Chularat Wattanakit Tags: Research Article Source Type: research
Why is Superlubricity of Diamond ‐Like Carbon Rare at Nanoscale?
This study investigates this rather peculiar dependence of HDLC superlubricity on the contact scale. To attain superlubricity, HDLC requires i) removal of ≈2 nm-thick air-oxidized surface layer and ii) shear-induced transformation of amorphous carbon to highly graphitic and hydrogenated structure. The nanoscale wear depth exceeds the typical thickness of the air-oxidized layer, ruling out the possibility of incomplete removal of the air-oxidized la yer. Raman analysis of transfer films indicates that shear-induced graphitization readily occurs at shear stresses lower than or comparable to those in the nanoscale test. Th...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Seokhoon Jang,
Ana G. Colliton,
Hind S. Flaih,
Eskil M. K. Irgens,
Lucas J. Kramarczuk,
Griffin D. Rauber,
Jordan Vickers,
Andrew L. Ogrinc,
Zhenxi Zhang,
Zhenbin Gong,
Zhe Chen,
Brian P. Borovsky,
Seong. H. Kim Tags: Research Article Source Type: research
High ‐Valence W6+ Ions Boost Cr2+ Activity in CrWO4 for Ideal Water Oxidation
By identifying descriptor that explains the functionality of W-based 3d transition oxides and exploring the potential of Cr based oxides, the water splitting performance of W-based catalysts is predicted and demonstrated through simulations and electrochemical experiments. AbstractElectrocatalytic activity of multi-valence metal oxides for oxygen evolution reaction (OER) arises from various interactions among the constituent metal elements. Although the high-valence metal ions attract recent attentions due to the interactions with their neighboring 3d transition metal catalytic center, atomic-scale explanations for the cat...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Chanseok Kim,
Dasom Jeon,
Nayeong Kim,
Jungki Ryu,
Jun Hee Lee Tags: Research Article Source Type: research
Balancing Flexible Side Chains on 2D Conjugated Acceptors Enables High ‐Performance Organic Solar Cell
A series of nonfullerene acceptors, CH ─6F─Cn, with gradient substituent lengths of side chains are synthesized. The different chain lengths dramatically modulated intermolecular packing modes, crystallinity, and nanoscale morphology of the active layer. The highest PCE of 18.73% is achieved by OSCs employing D18:PM6:CH-6F-C8 as ligh t-harvesting materials. AbstractBalancing the rigid backbones and flexible side chains of light-harvesting materials is crucially important to reach optimized intermolecular packing, micromorphology, and thus photovoltaic performance of organic solar cells (OSCs). Herein, based on a distin...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Xingqi Bi,
Shitong Li,
Tengfei He,
Hongbin Chen,
Yu Li,
Xinyuan Jia,
Xiangjian Cao,
Yaxiao Guo,
Yang Yang,
Wei Ma,
Zhaoyang Yao,
Bin Kan,
Chenxi Li,
Xiangjian Wan,
Yongsheng Chen Tags: Research Article Source Type: research
Facet Dependent Photoluminescence Blinking from Perovskite Nanocrystals
This study suggests that extra-faceted PNCs, owing to their polar facets and expanded surface area, render them more susceptible to photocharging, which results in larger OFF-state populations. Furthermore, the fluorescence correlation spectroscopy (FCS) study unveils that the augmented propensity for photocharging in extra-faceted PNCs can also originate from their greater tendency to form complexes with neighboring molecules. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Mrinal Kanti Panda,
Debopam Acharjee,
Asit Baran Mahato,
Subhadip Ghosh Tags: Research Article Source Type: research
Nano ‐Interfacial Supramolecular Adhesion of Metal–Organic Framework‐Based Separator Enables High‐Safety and Wide‐Temperature‐Range Lithium Batteries
In this study, a high-porosity free-standing MOF-based safety separator, denoted the BCM separator, is prepared through a nano-interfacial supramolecular adhesion strategy. The BCM separator has a large specific surface area (450.22 m2 g−1) and porosity (62.0%), a high electrolyte uptake (475 wt%), and can maintain its morphology at 200 °C. The ionic conductivity andtLi+ of the BCM separator are 1.97 and 0.72 mS cm−1, respectively. Li//LiFePO4 cells with BCM separators have a capacity retention rate of 95.07% after 1100 cycles at 5 C, a stable high-temperature cycling performance of 300 cycles at 80 °C, and go...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: You Gao,
Qing ‐Song Liu,
Man‐Cheng Long,
Guo‐Rui Zhu,
Gang Wu,
Xiu‐Li Wang,
Yu‐Zhong Wang Tags: Research Article Source Type: research
Robust Superhydrophobic Composite Fabric with Self ‐Healing and Chemical Durability
Superhydrophobic self-healing coated fabrics (PA66/6-PET@Tico) are prepared using a two-step hydrothermal method based on a synergistic strategy of multi-tentacle papillary structures and low surface energy. After physical abrasion, the WCA self-healed to 165.6 ° after 9 days at room temperature; with chemical corrosion, the WCA self-healed to 163.3° after 10 min at 90 °C. The PA66/6-PET@Tico shows good superhydrophobic self-healing properties. AbstractSuperhydrophobic fabrics with multiple functions have become a research hotspot. However, it is challenging to make self-healing mechanically robust and eco-friendly sup...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Jing Tao,
Yuanfa Liu,
Minghan Li,
Zheng Li,
Yihang Zhang,
Xuecui Song,
Qiang Yang,
Fucheng Guan,
Jing Guo Tags: Research Article Source Type: research
