Intramolecular Quaternary Carbon Nitride Homojunction for Enhanced Visible Light Hydrogen Production
This study provides a reliable way for the rational design and fabrication of intramolecular multi-homojunction to obtain high-efficient photocatalytic reactions. (Source: Small)
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Xiang Zhong,
Yuxiang Zhu,
Yan Wang,
Zhengtao Jia,
Meng Jiang,
Qiufan Sun,
Jianfeng Yao Tags: Research Article Source Type: research
Ultrasmall and Highly Dispersed Pt Entities Deposited on Mesoporous N ‐doped Carbon Nanospheres by Pulsed CVD for Improved HER
Mesoporous N-doped carbon nanospheres are used for Pt deposition via a pulsed CVD approach. The process results predominantly in highly dispersed ultrasmall ≈1 nm sized Pt clusters along with Pt single atoms. The resulting electrocatalyst reveals an ultrahigh Pt hydrogen evolution reaction mass activity of 56 ± 2 A mg−1Pt at -50 mV vs. RHE. AbstractVapor-based deposition techniques are emerging approaches for the design of carbon-supported metal powder electrocatalysts with tailored catalyst entities, sizes, and dispersions. Herein, a pulsed CVD (Pt-pCVD) approach is employed to deposit different Pt entities on m...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Sven K üspert,
Ian E. Campbell,
Zhiqiang Zeng,
S. Esmael Balaghi,
Niklas Ortlieb,
Ralf Thomann,
Markus Knäbbeler‐Buß,
Christopher S. Allen,
Suzanne E. Mohney,
Anna Fischer Tags: Research Article Source Type: research
Electron Accumulation Induced by Electron Injection ‐Incomplete Discharge on NiFe LDH for Enhanced Oxygen Evolution Reaction
This study clarifies the effect of EA on OER activity and provides an electron injection-incomplete discharging approach for effective electrocatalyst design. AbstractOptimizing the local electronic structure of electrocatalysts can effectively lower the energy barrier of electrochemical reactions, thus enhancing the electrocatalytic activity. However, the intrinsic contribution of the electronic effect is still experimentally unclear. In this work, the electron injection-incomplete discharge approach to achieve the electron accumulation (EA) degree on the nickel-iron layered double hydroxide (NiFe LDH) is proposed, to rev...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Rongrong Zhang,
Yun Han,
Qilong Wu,
Min Lu,
Guangsheng Liu,
Zhangtao Guo,
Yaowen Zhang,
Jianrong Zeng,
Xiaofeng Wu,
Dongdong Zhang,
Liyun Wu,
Nan Song,
Pei Yuan,
Aijun Du,
Keke Huang,
Jun Chen,
Xiangdong Yao Tags: Research Article Source Type: research
Ti ─O─C Bonding at 2D Heterointerfaces of 3D Composites for Fast Sodium Ion Storage at High Mass Loading Level
The studies show the fast Na+ storage capacity of 3D MXene-reduced holey graphene oxide composite electrode at high mass loading level, that is attributed to the forming of Ti ─O─C bonding at heterointerfaces inside the 3D composites. Compared with typical commercial or research electrode materials, the composite electrode delivers a much higher areal capacity at a given current density, almost the highest value reported before. Abstract3D composite electrodes have shown extraordinary promise as high mass loading electrode materials for sodium ion batteries (SIBs). However, they usually show poor rate performance due t...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Diwen Yu,
Kaixuan Guo,
Fengxiao Hou,
Yangang Zhang,
Xiaolin Ye,
Yaohui Zhang,
Puguang Ji,
Umedjon Khalilov,
Gongkai Wang,
Xin Zhang,
Kai Wang,
Yuexian Song,
Xiaobin Zhong,
Hongtao Sun,
Jian Zhu,
Junfei Liang,
Hua Wang Tags: Research Article Source Type: research
Photo ‐Driven Ion Directional Transport across Artificial Ion Channels: Band Engineering of WS2 via Peptide Modification
The asymmetric peptide-WS2 membrane (AP-WS2M) could realize subtly tunning of photo-driven ion transport via the designed built-in photovoltaic motive force of type II band alignment in a bioinspired nanofluidic device. With proper system configurations, the AP-WS2M could realize the photo-driven fivefold anti-gradient ion transport andvis-light enhanced osmotic energy conversion. AbstractBiological photo-responsive ion channels play important roles in the important metabolic processes of living beings. To mimic the unique functions of biological prototypes, the transition metal dichalcogenides, owing to their excellent me...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Xiaoyan Jin,
Yabing Zeng,
Min Zhou,
Di Quan,
Meijuan Jia,
Biying Liu,
Kaicong Cai,
Lei Kang,
Xiang ‐Yu Kong,
Liping Wen,
Lei Jiang Tags: Research Article Source Type: research
An Indacenodithienothiophene ‐Based Wide Bandgap Small Molecule Guest for Efficient and Stable Ternary Organic Solar Cells
In this study, IDTR and binary systems have complementary absorption characteristics and cascade alignment. The morphology analysis shows that the introduction of IDTR makes it have strong crystallinity, good miscibility, and reasonable vertical phase distribution, thus achieving higher and more balanced charge transport behavior. The PCE is significantly improved, and the continuously illuminated T80 successfully achieved excellent device stability of nearly 400 h. AbstractThe strategic and logical development of the third component (guest materials) plays a pivotal and intricate role in improving the efficiency and sta...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Chenyang Zhang,
Han Wang,
Xiaokang Sun,
Xiuzun Zhong,
Yulin Wei,
Ruida Xu,
Kai Wang,
Hanlin Hu,
Mingjia Xiao Tags: Research Article Source Type: research
Synergistic Regulation of Targeted Organelles in Tumor Cells to Promote Photothermal ‐Immunotherapy Using Intelligent Core‐Satellite‐Like Nanoparticles for Effective Treatment of Breast Cancer
Herein, an intelligent nanoplatform (BMAEF) is fabricated to perform on-demand destruction of mitochondria and golgi apparatus, which also generates the enhanced photothermal therapy and immunotherapy, resulting in the effective inhibition of primary and metastasis tumor against breast cancer. The BMAEF has a core of mesoporous silica nanoparticles loaded with brefeldin A (BM), which is further connected to ethylenebis(oxyethylenenitrilo)tetraacetic acid and folic acid co-modified gold nanoparticles (AEF). AbstractThe normal operation of organelles is critical for tumor growth and metastasis. Herein, an intelligent nanopla...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Xiaowei Chang,
Xiaoyu Tang,
Wenjun Tang,
Lin Weng,
Tao Liu,
Zeren Zhu,
Jie Liu,
Man Zhu,
Yanmin Zhang,
Xin Chen Tags: Research Article Source Type: research
Constructing 2D Polyphenols ‐Based Crosslinked Networks for Ultrafast and Selective Uranium Extraction from Seawater
The design and preparation of a TA-containing 2D crosslinked network adsorbent (TANP) by nucleophilic aromatic substitution is reported. Benefiting from sufficiently exposed active sites, well-defined host-guest complexes, and energetically favorable binding of uranyl ions, TANP exhibits a high marine uranium uptake of 14.62 mg−1 g−1 together with the highest adsorption rate constant (1.00 × 10-3 g−1 mg−1 min−1) among the available polymer adsorbents. AbstractThe role of tannins (TA), a well-known abundant and ecologically friendly chelating ligand, in metal capture has long been studied. Different ki...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Mengwei Chen,
Dan Liu,
Tao Liu,
Tao Wei,
Qingtian Qiao,
Yihui Yuan,
Ning Wang Tags: Research Article Source Type: research
Controlling Nanoparticle Distance by On ‐Surface DNA‐Origami Folding
This study describes a novel approach that combines top-down lithography with bottom-up DNA origami techniques to control folding of the DNA origami with the adsorption on pre-patterned surfaces. Using this approach, tunable plasmonic dimer nano-arrays are fabricated on a silicon surface. This involves employing electron beam lithography to create adsorption sites on the surface and utilizing self-organized adsorption of DNA origami functionalized with two gold nanoparticles (AuNPs). The desired folding of the DNA origami helices can be controlled by the size and shape of the adsorption sites. This approach can for example...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Zhe Liu,
Zunhao Wang,
Jannik Guckel,
Ziba Akbarian,
Tim J. Seifert,
Daesung Park,
Uta Schlickum,
Rainer Stosch,
Markus Etzkorn Tags: Research Article Source Type: research
Boosting the Energy Density of Bowl ‐Like MnO2@Carbon Through Lithium‐Intercalation in a High‐Voltage Asymmetric Supercapacitor with “Water‐In‐Salt” Electrolyte
MnO2 nanoflowers are successfully grown on mesoporous bowl-like carbon (MBC) particles to generate MnO2/MBC composite, which can largely improve the electrochemical performance. An asymmetric supercapacitor MnO2/MBC//AC device in 21 m LiTFSI electrolyte involves the occurrence of reversible reactions ofMnO2 +xLi+ +xe−↔LixMnO2 on charging and discharging, which greatly enhances the energy density of MnO2/MBC//AC device. AbstractHighly concentrated “‘water-in-salt”’ (WIS) electrolytes are promising for high-performance energy storage devices due to their wide electrochemical stability window. However, the energ...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Yudan Qian,
Zhiming Zhou,
Qingcheng Zhang,
Huaping Zhao,
Heng Chen,
Jintong Han,
Haiting Wan,
Huile Jin,
Shun Wang,
Yong Lei Tags: Research Article Source Type: research
Pathway of Room ‐Temperature Formation of CdSeS Magic‐Size Clusters from Mixtures of CdSe and CdS Samples
Clusters appear in the prenucleation stage of QDs. They are relatively transparent in optical absorption and are the precursor compounds (PCs) of MSCs. For one CdSe prenucleation-stage sample, CdSe MSC-390 transforms to MSC-415; mixed with one CdS prenucleation-stage sample, CdSeS MSCs are seen. The PC-to-PC transformation is assisted by monomer substitution. With enough CdS monomers, the CdSe PC can transform almost entirely to the CdS PC. AbstractThe synthetic application of prenucleation-stage samples of colloidal semiconductor quantum dots (QDs) is in its infancy. It is shown that when two prenucleation-stage samples o...
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Jiawei Xue,
Shasha Wang,
Zhe Wang,
Chaoran Luan,
Yang Li,
Xiaoqin Chen,
Kui Yu Tags: Research Article Source Type: research
Cold to Hot: Tumor Immunotherapy by Promoting Vascular Normalization Based on PDGFB Nanocomposites (Small 16/2024)
Tumor ImmunotherapyTumor vascular abnormalities is a profound determinant in the “cold” tumor immune microenvironment establishment by hindering immunotherapy efficacy. PDGFB@ZIF8-RGD effectively induced tumor vascular normalization, by reprogramming the “cold” TIME to a “hot” tumor immune microenvironment and facilitated robust antitumor immunity. More in article nu mber2308638, Yongquan Qu, Jie Lei, Junlong Zhao, Tao Jiang, and co-workers. (Source: Small)
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Shouzheng Ma,
Zhimin Tian,
Lei Liu,
Jun Zhu,
Jing Wang,
Shoujie Zhao,
Yejing Zhu,
Jianfei Zhu,
Wenchen Wang,
Runmin Jiang,
Yongquan Qu,
Jie Lei,
Junlong Zhao,
Tao Jiang Tags: Back Cover Source Type: research
Achieving Ideal and Environmentally Stable n ‐Type Charge Transport in Polymer Field‐Effect Transistors (Small 16/2024)
Polymer Field-Effect TransistorsIn article number2306010, Jian Pei and co-workers demonstrate ideal and environmentally stable charge transport in n-type polymer field-effect transistors. The fabricated transistors exhibit high electron mobility and near 100% reliability factors and remain robust after being stored in air for more than 300 days and immersed in water or acetone. (Source: Small)
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Ze ‐Fan Yao,
Hao‐Tian Wu,
Fang‐Dong Zhuang,
Peng‐Fei Zhang,
Qi‐Yi Li,
Jie‐Yu Wang,
Jian Pei Tags: Inside Back Cover Source Type: research
Simultaneous Separating, Splitting, Collecting, and Dispensing by Droplet Pinch ‐Off for Droplet Cell Culture (Small 16/2024)
Droplet Cell Culture SystemsDroplet dispensing by suction technique efficiently extracted culture medium from spheroid droplets in oil without damaging the spheroids. This counterintuitive suction-based droplet dispensing technology can be effectively utilized for the recovery and analysis of cellular information such as DNA, RNA, and proteins in spheroid culture media by simultaneously performing droplet splitting, dispensing, and collection. More in article number2309062, Do Jin Im and co-workers. (Source: Small)
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Seo Jun Bae,
Seon Jun Lee,
Do Jin Im Tags: Frontispiece Source Type: research
Modulating Aryl Azide Photolysis: Synthesis of a Room ‐Temperature Phosphorescent Carboline in Cucurbit[7]uril Host (Small 16/2024)
PhotolysisPhotolysis is a key method for approaching to a more functional system in chemical biology. However, the photoreaction of aryl azides usually leads to various products. In article number2307318, Frank Biedermann, Stefan Br äse, and co-workers presented a novel method to steer the photoreaction of the aryl azide pathway forming a phosphorescent carboline by reacting in the supramolecular host cucurbit[7]uril. (Source: Small)
Source: Small - April 18, 2024 Category: Nanotechnology Authors: Xujun Qiu,
Yichuan Wang,
Sonja Leopold,
Sergei Lebedkin,
Ute Schepers,
Manfred M. Kappes,
Frank Biedermann,
Stefan Br äse Tags: Frontispiece Source Type: research
