Self-assembly of peptide-based nanostructures: Synthesis and biological activity
Léna Guyon, Elise Lepeltier*, and Catherine Passirani
UBL Université Bretagne Loire, France
This review explores aliphatic-chain-conjugated peptides and drugconjugated peptides that can self-assemble. Special attention is given to the synthesis procedure, nanostructure formation, and biological activity.
The in vivo targeted molecular imaging of fluorescent silicon nanoparticles in Caenorhabditis elegans
Yanfeng Zhou, Yun Zhang, Yiling Zhong, Rong Fu, Sicong Wu, Qin Wang, Houyu Wang, Yuanyuan Su, Huimin Zhang*, and Yao He*
Soochow University, China
Herein, we describe the use of Caenorhabditis elegans as an animal model to investigate the in vivo behavior and molecular imaging capacity of ultrasmall fluorescent silicon nanoparticles (SiNPs). The results demonstrate that the internalized SiNPs possess superior biocompatibility, chemical stability, and photostability in the live worms, ensuring faithful visualization of the distribution of subcellular structures in live organisms.
Superelastic wire-shaped supercapacitor sustaining 850% tensile strain based on carbon nanotube@graphene fiber
Huimin Wang, Chunya Wang, Muqiang Jian, Qi Wang, Kailun Xia, Zhe Yin, Mingchao Zhang, Xiaoping Liang, and Yingying Zhang*
Tsinghua University, China
An ultra-stretchable wire-shaped supercapacitor was fabricated by winding fibrous electrodes around an elastic core fiber. The supercapacitor can sustain tensile strain up to 850%, while maintaining a stable electrochemical performance. This study provides a universal strategy for the fabrication of highly stretchable wire-shaped devices.
Grain boundaries modulating active sites in RhCo porous nanospheres for efficient CO2 hydrogenation
Xusheng Zheng1,*, Yue Lin1, Haibin Pan1, Lihui Wu1, Wei Zhang1, Linlin Cao1, Jing Zhang2, Lirong Zheng2, and Tao Yao1,*
1 University of Science and Technology of China, China
2 Institute of High Energy Physics, Chinese Academy of Sciences, China
We integrated grain boundaries to modulate the active sites and electronic properties via RhCo porous nanospheres. The porous nanospherical morphology allows for a high population of grain boundaries to be accessible to the reactants, thus providing sufficient active sites for the catalytic process of high-performance CO2 hydrogenation.
Development of polyimide films reinforced with boron nitride and boron nitride nanosheets for transparent flexible device applications
You Jin Min, Kyeong-Hee Kang, and Dae-Eun Kim*
Yonsei University, Republic of Korea
We prepared polyimide (PI)-based composite films with boron nitride (BN) and boron nitride nanosheets (BNNSs) to enhance the thermal and mechanical properties of polyimide for flexible device applications. PI/BNNS composite films exhibited excellent properties, better than those of PI/BN composite films, and PI/2 wt.% BNNS was determined to be the optimum composition.
Surface-floating gold nanorod super-aggregates with macroscopic uniformity
Abdul R. Ferhan1, Youju Huang1, Anirban Dandapat1, and Dong-Hwan Kim2,*
1 Nanyang Technological University, Singapore
2 Sungkyunkwan University, Republic of Korea
High-density three-dimensional assemblies of gold nanorods on polymer brush was obtained with macroscopic uniformity via single-step immersion of polymer brush-coated substrates in gold nanorod solution without any form of functionalization.
Polycation-functionalized gold nanodots with tunable near-infrared fluorescence for simultaneous gene delivery and cell imaging
Yuanqing Sun1,3, Dandan Wang1, Yueqi Zhao1, Tianxin Zhao1, Hongchen Sun1, Xiangwei Li1, Chuanxi Wang2,*, Bai Yang1, and Quan Lin1,*
1 Jilin University, China
2 Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, China
3 China University of Petroleum, China
Polycation-functionalized gold nanodots with tunable fluorescence from the visible to near-infrared region as well as high quantum yield, good fluorescence stability, and low cytotoxicity can realize gene delivery and cell imaging simultaneously.
Single Cr atom catalytic growth of graphene
Huy Q. Ta1,2, Liang Zhao1, Wanjian Yin1,*, Darius Pohl3, Bernd Rellinghaus3, Thomas Gemming3, Barbara Trzebicka2, Justinas Palisaitis4, Gao Jing1, Per O. Å. Persson4, Zhongfan Liu1,5, Alicja Bachmatiuk1,2,3,*, and Mark H. Rümmeli1,2,3,*
1 Soochow University, China
2 Polish Academy of Sciences, Poland
3 IFW Dresden, Germany
4 Linköping University, Sweden
5 Peking University, China
Direct observations of the behavior of single Cr atoms in graphene mono- and divacancies and, more importantly, at graphene edges under electron beam irradiation, show a single Cr atom diffusing along the edge and catalytically growing new graphene.
Elucidation of thermally induced internal porosity in zinc oxide nanorods
Albertus D. Handoko1,*, Laura-Lynn Liew1,2, Ming Lin1, Gopinathan Sankar3, Yonghua Du1, Haibin Su2, Zhili Dong2, and Gregory K. L. Goh1,2,*
1 Agency for Science, Technology and Research (A*STAR), Singapore
2 Nanyang Technological University, Singapore
3 University College London, UK
The formation of internal pores in ZnO nanorods was tracked using in situ tomography techniques. A 20× higher photocurrent was obtained since the lowered defect density and formation of internal pores improved light absorption.
Highly -oriented self-assembled LiCoPO4/C nanoflakes as high-performance cathode for lithium ion batteries
Yan Hou1, Kun Chang2,*, Bao Li1, Hongwei Tang1, Zhenyu Wang3, Jianli Zou3, Huimin Yuan3, Zhouguang Lu3,*, and Zhaorong Chang1,*
1 Henan Normal University, China
2 National Institute for Materials Science (NIMS), Japan
3 Southern University of Science and Technology, China
LiCoPO4/C nanoflakes are obtained by the self-assembly of LiCoPO4 nanoplates along the  direction to form stable microparticles. High capacities (154.6 mA·h·g−1 at 0.1 C (based on the LiCoPO4 weight of 1 C = 167 mA·h·g−1)) and stable cycling (93.1% capacity retention after 100 cycles) are achieved in the full cell.
Polyethylene glycol-modified cobalt sulfide nanosheets for high-performance photothermal conversion and photoacoustic/magnetic resonance imaging
Zhenglin Li1,2, Zhuo Li1, Lei Chen3, Ying Hu1, Shaoshan Hu3, Zhaohua Miao1, Ye Sun1,*, Flemming Besenbacher2,*, and Miao Yu1,*
1 Harbin Institute of Technology, China
2 Aarhus University, Denmark
3 The Second Affiliated Hospital of the Harbin Medical University, China
Polyethylene glycol (PEG)-modified cobalt sulfide nanosheets (CoS-PEG NSs) are synthesized and unitized for the first time as a biocompatible and powerful theranostic nanoagent for efficient photothermal conversion and multimodal imaging. Such novel theranostic nanoplatforms have great potential for precise/efficient cancer diagnosis and therapy.
Polarized few-layer g-C3N4 as metal-free electrocatalyst for highly efficient reduction of CO2
Bing Zhang, Tian-Jian Zhao, Wei-Jie Feng, Yong-Xing Liu, Hong-Hui Wang, Hui Su, Li-Bing Lv, Xin-Hao Li*, and Jie-Sheng Chen*
Shanghai Jiao Tong University, China
Polarized few-layer graphitic carbon nitride (g-C3N4) was investigated for use as an efficient electrocatalyst for selective CO2 reduction. The polarized surface of two-dimensional polarized g-C3N4 (2D-pg-C3N4), with a more reductive conduction band originating from the ultralow thickness (~ 1 nm), exhibited excellent electrochemical activity for CO2 reduction, achieving a Faradaic efficiency of 91% at approximately −1.1 V vs. Ag/AgCl in KHCO3 solution by selectively reducing CO2 to CO (~ 80%) and formic acid (~ 11%).
Polyaniline-coated selenium/carbon composites encapsulated in graphene as efficient cathodes for Li-Se batteries
Biwu Wang1, Jingjing Zhang1,*, Zhigang Xia1,*, Meiqiang Fan1, Chunju Lv1, Guanglei Tian1, and Xiaona Li2
1 China Jiliang University (CJLU), China
2 University of Science and Technology of China, China
A polyaniline-coated selenium/carbon nanocomposite encapsulated in graphene sheets (PANI@Se/C-G) displays excellent electrochemical performance in Li-Se batteries.
Doxorubicin-loaded Fe3O4@MoS2-PEG-2DG nanocubes as a theranostic platform for magnetic resonance imagingguided chemo-photothermal therapy of breast cancer
Wensheng Xie1, Qin Gao1, Dan Wang1, Zhenhu Guo1, Fei Gao2, Xiumei Wang1, Qiang Cai1, Si-shen Feng2, Haiming Fan3,*, Xiaodan Sun1,*, and Lingyun Zhao1,*
1 Tsinghua University, China
2 National University of Singapore, Singapore
3 Northwest University, China
Our study highlights an excellent theranostic platform (IOMSPEG(DOX)-2DG NCs) with a great potential for targeted magnetic resonance imaging (MRI)-guided precise chemo-photothermal therapy of breast cancer.
Self-quenched gold nanoclusters for turn-on fluorescence imaging of intracellular glutathione
Cong Dai1, Chengxiong Yang1, and Xiuping Yan1,2,3,*
1 Nankai University, China
2 Jiangnan University, China
3 Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), China
Self-quenched gold nanoclusters (Sq-AuNCs) were prepared via disulfide bond induced aggregation of gold nanoclusters for turn-on fluorescence imaging of intracellular glutathione.
Living cell synthesis of CdSe quantum dots: Manipulation based on the transformation mechanism of intracellular Se-precursors
Ming Shao, Rong Zhang, Chuan Wang, Bin Hu, Daiwen Pang, and Zhixiong Xie*
Wuhan University, China
Manipulation of cadmium-selenium quantum dot (CdSe QD) biosynthesis: Modification of selenium metabolism, based on the role of the SeMet-to-SeCys pathway in CdSe QD biosynthesis, contributes to a higher yield of CdSe QDs in engineered yeast cells.
Silica nanoparticle with a single His-tag for addressable functionalization, reversible assembly, and recycling
Yuye Cao1, Yangdong Cui1, Yu Yang1, Jie Hua1, Zheng-Mei Song1, Haifang Wang1, Yuanfang Liu1,2, and Aoneng Cao1,*
1 Shanghai University, China
2 Peking University, China
His-tagged proteins are individually encapsulated in silica nanoparticles (NPs) in the same orientation, leaving a single His-tag outside each NP for reversible dimerization and recycling.
InP/GaInP nanowire tunnel diodes
Xulu Zeng1,*, Gaute Otnes1, Magnus Heurlin1,†, Renato T Mourão2, and Magnus T Borgström1
1 Lund University, Sweden
2 Universidade Federal do Rio de Janeiro, Brazil
† Present address: Sol Voltaics AB, Sweden
We report the first InP/GaInP nanowire tunnel diodes in both InP/GaInP and GaInP/InP configurations. The realization of the nanowire tunnel diodes opens up opportunities for the design of nanowire tandem solar cells independent of the growth order of the different materials, increasing the flexibility regarding dopant incorporation polarity.
Strong contact coupling of neuronal growth cones with height-controlled vertical silicon nanocolumns
Seong-Min Kim1, Seyeong Lee1, Dongyoon Kim1, Dong-Hee Kang1, Kisuk Yang2, Seung-Woo Cho2, Jin Seok Lee3, Insung S. Choi4,*, Kyungtae Kang5,*, and Myung-Han Yoon1,*
1 Gwangju Institute of Science and Technology, Republic of Korea
2 Yonsei University, Republic of Korea
3 Sookmyung Women's University, Republic of Korea
4 KAIST, Republic of Korea
5 Kyung Hee University, Republic of Korea
Height-controlled vertically etched silicon nanocolumn arrays (vSNAs) accelerated in vitro neurite development by engaging strong cone-to-substrate coupling. Furthermore, neurite polarization and elongation were differentially modulated depending on the height of the nanocolumns.
Heterogeneously supported pseudo-single atom Pt as sustainable hydrosilylation catalyst
Huachao Zai1,2, Yizhou Zhao1,2, Shanyu Chen1, Lei Ge1, Changfeng Chen1,*, Qi Chen2, and Yujing Li1,2,*
1 China University of Petroleum, China
2 Beijing Institute of Technology, China
Superparamagnetic Fe3O4/SiO2 core–shell nanoparticles are prepared as the substrate for pseudo-single atom Pt catalysts; the Fe3O4/SiO2-supported Pt displays high ctivity as a reusable heterogeneous catalyst for the hydrosilylation reaction.
High-performance colorful semitransparent perovskite solar cells with phase-compensated microcavities
Kyu-Tae Lee1, Ji-Yun Jang2, Na Young Ha2, Soonil Lee2, and Hui Joon Park2,*
1 University of Illinois, USA
2 Ajou University, Republic of Korea
We present high-performance multiple-color-producing semitransparent perovskite solar cells exploiting optical microcavities, incorporated with a phase-compensating functional medium that provides not only a better impedance matching to enhance the transmittance but an extra reflection phase change to improve angle-dependent properties with a negligible change in both color vibrancy and electrical characteristics.
One-pot synthesis of interconnected Pt95Co5 nanowires with enhanced electrocatalytic performance for methanol oxidation reaction
Qingqing Lu1,2, Litai Sun1,2, Xue Zhao1,2, Jianshe Huang1, Ce Han1, and Xiurong Yang1,*
1 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, China
2 University of Chinese Academy of Sciences, China
Interconnected Pt95Co5 nanowires that integrate the merits of wire-like structure and bimetallic composition were synthesized through a one-pot surfactant-free method and applied as effective electrocatalysts for the methanol oxidation reaction.
Conjugated polymer-mediated synthesis of sulfur- and nitrogen-doped carbon nanotubes as efficient anode materials for sodium ion batteries
Yanzhen He1, Xijiang Han1,*, Yunchen Du1, Bo Song1, Bin Zhang1, Wei Zhang2,*, and Ping Xu1,*
1 Harbin Institute of Technology, China
2 Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, China
Highly active sulfur and nitrogen co-doped carbon nanotubes (S/N-CT) derived from polyaniline (PANI) nanotubes are demonstrated as efficient anode materials for sodium ion batteries with high rate capability and long cycling life.
Silicon nanowire ratioed inverters on bendable substrates
Jeongje Moon1,2, Yoonjoong Kim1, Doohyeok Lim1, Kyeungmin Im1, and Sangsig Kim1,*
1 Korea University, Republic of Korea
2 Samsung Electronics Co., Ltd., Republic of Korea
We demonstrate the performance of a silicon nanowire (SiNW) n-metal oxide semiconductor (MOS) and p-MOS ratioed inverters on bendable substrates. The electrical characteristics of the fabricated devices can be controlled by adjusting the load voltage.
Programmable DNA-responsive microchip for the capture and release of circulating tumor cells by nucleic acid hybridization
Shan Guo, Haiyan Huang, Xujing Deng, Yuqi Chen, Zhuoran Jiang, Min Xie, Songmei Liu, Weihua Huang*, and Xiang Zhou*
Wuhan University, China
In this study, we developed a programmable DNA-responsive microchip integrated with a hierarchical nanostructure for highly efficient capture, nondestructive release, and detection of protein biomarkers of circulating tumor cells.
Unraveling giant Cu(110) surface restructuring induced by a non-planar phthalocyanine
Nataliya Kalashnyk1,*, Luke A. Rochford2, Dongzhe Li3, Alexander Smogunov4, Yannick J. Dappe4, Tim S. Jones2, and Laurent Guillemot1
1 Université Paris-Sud 11, France
2 The University of Birmingham, UK
3 University of Konstanz, Germany
4 Université Paris-Saclay, France
A drastic reorganization of a copper surface, commonly used as an electrode material for functional electronic devices incorporating organic semiconductors, was discovered upon adsorption of vanadyl phthalocyanine (VOPc) molecules. The thermal stability of the VOPc/Cu(110) interface was tested and the enhancements in the “sculpting” of the copper crystal by the VOPc adsorbate were clearly demonstrated.
One-pot synthesis of Pt−Cu bimetallic nanocrystals with different structures and their enhanced electrocatalytic properties
Daowei Gao1, Shuna Li1, Guolong Song1, Pengfei Zha2, Cuncheng Li1, Qin Wei1, Yipin Lv1, and Guozhu Chen1,*
1 University of Jinan, China
2 China University of Petroleum, China
A series of Pt−Cu alloy nanocrystals with concave octahedron, porous octahedron, yolk–shell, and nanoflower structures were fabricated by altering the sequential reduction kinetics by a one-pot aqueous phase synthesis. These exhibit excellent catalytic performances in the electrooxidation of methanol and formic acid.
Silicon nanowire CMOS NOR logic gates featuring onevolt operation on bendable substrates
Jeongje Moon1,2, Yoonjoong Kim1, Doohyeok Lim1, and Sangsig Kim1,*
1 Korea University, Republic of Korea
2 Samsung Electronics Co. Ltd., Republic of Korea
We propose complementary metal-oxide−semiconductor (CMOS) NOR logic gates consisting of silicon nanowire (NW) arrays on bendable substrates. The proposed device exhibits the exact NOR functionality with high performance at a low supply voltage of 1 V.
Antarctic thermolabile uracil-DNA-glycosylasesupplemented multiple cross displacement amplification using a label-based nanoparticle lateral flow biosensor for the simultaneous detection of nucleic acid sequences and elimination of carryover contamination
Yi Wang1, Hui Li2, Yan Wang1, Huaqing Xu3, Jianguo Xu1, and Changyun Ye1,*
1 Chinese Center for Disease Control and Prevention, China
2 Guizhou Medical University, China
3 The Sixth People’s Hospital of Zhengzhou, China
The Antarctic thermolabile uracil-DNA-glycosylase (AUDG)-supplemented nucleic acid amplification techniques (NAAs) using a labeled-based nanoparticle lateral flow biosensor (LFB) (AUDGNAAs-LFB) technique merges enzymatic digestion of contaminants and multiple cross displacement amplification with a lateral flow biosensor for the rapid and visual detection of nucleic acid sequences. This technique can effectively eliminate and prevent the occurrence of false-positives arising from carryover contamination, primerdimers, and the environment.
An additive dripping technique using diphenyl ether fortuning perovskite crystallization for high-efficiency solar cells
Di Huang1,2, Tenghooi Goh2, Yifan Zheng2, Zilun Qin1, Jiao Zhao1, Suling Zhao1, Zheng Xu1,*, and André D. Taylor2,*
1 Beijing Jiaotong University, China
2 Yale University, USA
We achieve uniform, pinhole-free perovskite films with improved crystallinity and larger grain size by additive dripping with diphenyl ether. This technique can significantly improve the power conversion efficiency by 15% up to 16.64%.
High-performance sub-10-nm monolayer black phosphorene tunneling transistors
Hong Li1,*, Jun Tie1, Jingzhen Li2, Meng Ye2, Han Zhang2, Xiuying Zhang2, Yuanyuan Pan2, Yangyang Wang5, Ruge Quhe6, Feng Pan4,*, and Jing Lu2,3,*
1 North China University of Technology, China
2 Peking University, China
3 Collaborative Innovation Center of Quantum Matter, China
4 Shenzhen Graduate School, China
5 China Academy of SpaceTechnology, China
6 Beijing University of Posts andTelecommunications, China
We predict that the on-state current, delay time, and power dissipation of monolayer black phosphorene tunneling transistors surpass the requirements of the International Technology Roadmap for Semiconductors for high-performance devices in the 6–10 nm scale using ab initio quantum transport calculations.
Efficient fully laser-patterned flexible perovskite modules and solar cells based on low-temperature solutionprocessed SnO2/mesoporous-TiO2 electron transport layers
Janardan Dagar1, Sergio Castro-Hermosa1, Matteo Gasbarri1, Alessandro L. Palma1, Lucio Cina2, Fabio Matteocci1, Emanuele Calabrò1, Aldo Di Carlo1,3, and Thomas M. Brown1,*
1 University of Rome Tor Vergata, Italy
2 Cicci Research srl, Italy
3 National University of Science and Technology “MISiS”, Russia
Flexible perovskite solar cells and laser-patterned modules with polyethylene terephthalate (PET)/indium tin oxide (ITO)/SnO2/ mesoporous-TiO2 (meso-TiO2)/CH3NH3PbI3/2,2’,7,7’-tetrakis-(N,Ndi-p-methoxyphenylamine)-9,9’-spirobifluorene (Spiro-MeOTAD)/Au architecture fabricated at low temperature using solution processed methods delivered a maximum power conversion efficiency of 14.8% and 8.8% respectively under 1 sun illumination. State of the art solar cell maximum power densities of 19.2 μW/cm2 (estimated efficiency of 13.3%) at 400 lx under indoor LED light illumination were also reached.
Nanocapsules of oxalate oxidase for hyperoxaluria treatment
Ming Zhao1, Duo Xu1, Di Wu1, James W. Whittaker2, Robert Terkeltaub3, and Yunfeng Lu1,*
1 University of California, Los Angeles, USA
2 Oregon Health and Sciences University, USA
3 San Diego VA Medical Center, USA
A novel delivery strategy of oxalate oxidase (OxO) that is encapsulated within a thin zwitterionic shell is reported for the treatment of hyperoxaluria. As-formed OxO nanocapsules exhibit enhanced catalytic activity, significantly prolonged plasma circulation time, and substantially mitigated immunogenicity compared with the native OxO.
Enhanced microwave absorption performance of highly dispersed CoNi nanostructures arrayed on graphene
Genban Sun1,2, Hong Wu2, Qingliang Liao1,*, and Yue Zhang1,*
1 University of Science and Technology Beijing, China
2 Beijing Normal University, China
Phase- and morphology-controllable CoNi alloy nanoclusters were assembled uniformly and densely on two-dimensional graphene via a facile one-pot solution co-thermal decomposition method and exhibited excellent microwave absorbability.
Soft thermal nanoimprint lithography using a nanocomposite mold
Viraj Bhingardive, Liran Menahem, and Mark Schvartzman*
Ben-Gurion University of the Negev, Israel
Soft thermal nanoimprint lithography is demonstrated using a novel nanocomposite mold, which is made of flexible polydimethylsiloxane (PDMS) substrate with chemically attached rigid relief features. The applications of the nanocomposite mold included a high-resolution nanopatterns with sub-100 nm features thermally imprinted on non-planar surfaces, such as lenses.
Rod-shaped thiocyanate-induced abnormal band gap broadening in SCN– doped CsPbBr3 perovskite nanocrystals
Yongbing Lou1,*, Yandan Niu1, Dongwen Yang2, Qiaoling Xu2, Yuhang Hu1, Ying Shen1, Jing Ming1, Jinxi Chen1, Lijun Zhang2,*, and Yixin Zhao3,*
1 Southeast University, China
2 Jilin University, China
3 Shanghai Jiao Tong University, China
A combined experimental and theoretical investigation of SCN−doped CsPbBr3 nanocrystals revealed that SCN− doping is an effective approach to modify the electronic structure, particularly the conduction band position, of halide perovskite nanocrystals.
Plasma-processed homogeneous magnesium hydride/carbon nanocomposites for highly stable lithium storage
Xinghua Chang, Xinyao Zheng, Yanru Guo, Jun Chen, Jie Zheng*, and Xingguo Li*
Peking University, China
Magnesium hydride nanocrystals homogeneously distributed in carbon, obtained by thermal plasma processing, exhibit high capacity and excellent stability in lithium storage applications. These materials retain a reversible capacity of 620 mAh·g–1 after1,000 cycles, which represents a significant improvement in the performance of magnesium hydride-based anodes for lithium ion batteries.
Amorphous red phosphorus anchored on carbon nanotubes as high performance electrodes for lithium ion batteries
Li Sun*, Yu Zhang, Deyang Zhang, Jingang Liu, and Yihe Zhang*
China University of Geosciences, China
Red phosphorus-carbon nanotube (P@CNT) composites were synthesized with amorphous P nanoparticles uniformly anchored on CNTs. The composite electrodes exhibit superior electrochemical properties as anode materials for lithium ion batteries.
Deciphering active biocompatibility of iron oxide nanoparticles from their intrinsic antagonism
Lu Wang1, Zejun Wang1, Xiaoming Li2, Yi Zhang1, Min Yin1, Jiang Li1, Haiyun Song3, Jiye Shi1,4, Daishun Ling5, Lihua Wang1, Nan Chen1,*, and Chunhai Fan1,2,*
1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, China
2 Shanghai Tech University, China
3 Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, China
4 UCB Pharma, UK
5 Zhejiang University, China
Intrinsic catalase-like activity of Fe3O4 nanoparticles (NPs) both induced and antagonized the accumulation of toxic reactive oxygen species (ROS), and thereby modulated the extent of cellular oxidative stress, autophagic activity, and programmed cell death.
Targeted and imaging-guided in vivo photodynamic therapy for tumors using dual-function, aggregationinduced emission nanoparticles
Xianhe Sun1, Abudureheman Zebibula1, Xiaobiao Dong2, Gonghui Li1,*, Guanxin Zhang2,*, Deqing Zhang2, Jun Qian1, and Sailing He1,3,*
1 Zhejiang University, China
2 Institute of Chemistry, Chinese Academy of Sciences, China
3 Royal Institute of Technology, Sweden
Dual-function nanoparticles, with the property of aggregation-induced emission (AIE) and capacity for reactive oxygen species production, were used to achieve passive/active targeting of a tumor. Good contrast of in vivo imaging and obvious therapeutic efficacy were observed at a low dose of AIE nanoparticles and low irradiance of light, resulting in negligible side effects.
X-ray microscopic investigation of molecular orientation in a hole carrier thin film for organic solar cells
Quentin Arnoux1,2,*, Benjamin Watts3, Sufal Swaraj4, François Rochet1,4, and Ludovic Tortech1,2,*
1 UPMC Univ Paris 06, France
2 NIMBE, France
3 Paul Scherrer Institute, Switzerland
4 L’Orme des Merisiers, France
In the present study, we investigate the morphology of an organic layer (2,2',6,6'-tetraphenyl-4,4'-dipyranylidene, DIPO-Ph4) deposited under vacuum on a silicon nitride (Si3N4) substrate. The films were characterized by atomic force microscopy (AFM) and scanning transmission X-ray microscopy (STXM) to gain insight into the material growth.
Essential oils as solvents and core materials for the preparation of photo-responsive polymer nanocapsules
Valentina Marturano1,2, Valentina Bizzarro2, Adriana De Luise3, Anna Calarco3, Veronica Ambrogi1,*, Marta Giamberini4, Bartosz Tylkowski5, and Pierfrancesco Cerruti2
1 University of Naples “Federico II”, Italy
2 Institute for Polymers, Composites and Biomaterials (IPCBCNR),Italy
3 Institute of Agro-Environmental and Forest Biology (IBAFCNR),Italy
4 Universitat Rovira i Virgili, Spain
5 Chemistry Technology Centre of Catalonia (CTQC), Spain
Essential oils are employed as both a solvent and as an active material in the preparation of UV-responsive nanocapsules, enabling the design of multipurpose light-triggered nanosized delivery platforms.
Porous hollow palladium nanoplatform for imagingguided trimodal chemo-, photothermal-, and radiotherapy
Menglin Song1, Nian Liu1, Le He3, Gang Liu1, Daishun Ling4, Xinhui Su5, and Xiaolian Sun1,2,*
1 Xiamen University, China
2 China Pharmaceutical University, China
3 Soochow University, China
4 Zhejiang University, China
5 Zhongshan Hospital Xiamen University, China
Porous hollow palladium nanoparticles were developed to codeliver 131I and doxorubicin for single-photon emission computed tomography/photoacoustic (SPECT/PA) imaging-guided trimodal
chemo-, photothermal-, and radiotherapy.
In situ atomic-scale observation of monolayer graphene growth from SiC
Kaihao Yu1, Wen Zhao2,4, Xing Wu1,5, Jianing Zhuang4, Xiaohui Hu1,6, Qiubo Zhang1, Jun Sun1, Tao Xu1, Yang Chai4, Feng Ding2,3,4,*, and Litao Sun1,7,8,*
1 Southeast University, China
2 Institute for Basic Science, Republic of Korea
3 Ulsan National Institute of Science and Technology, Republic of Korea
4 The Hong Kong Polytechnic University, Hong Kong, China
5 East China Normal University, China
6 Nanjing Tech University, China
7 Southeast University and Jiangnan Graphene Research Institute, China
8 Joint Research Institute of Southeast University and Monash University, China
In situ aberration-corrected transmission electron microscopy in combination with ab initio molecular dynamics simulations is used to reveal the epitaxial growth dynamics of monolayer graphene. Three SiC (
) layers decompose successively to form one graphene layer; less stable carbon clusters and a network are formed as transition structures after sublimation of the first and second layers.
Highly efficient catalytic scavenging of oxygen freeradicals with graphene-encapsulated metal nanoshields
Junying Wang1, Xiaoju Cui2,3,4, Haobo Li2,4, Jianping Xiao2, Jiang Yang6, Xiaoyu Mu1, Haixia Liu1, Yuan-Ming Sun5, Xuhui Xue5, Changlong Liu1, Xiao-Dong Zhang1,*, Dehui Deng2,3,*, and Xinhe Bao2
1 TianjinUniversity, China
2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
3 Xiamen University, China
4 University of Chinese Academy of Sciences, China
5 Chinese Academy of Medical Sciences and Peking Union Medical College, China
6 Sun Yat-sen University Cancer Center, China
An electrocatalytic approach based on single-layer grapheneencapsulated metal nanohybrids was shown to represent an effective strategy for developing radioprotective biomaterials. The screened nanoparticles exhibit high catalytic activity in the scavenging of oxygen radicals, leading to an overall survival rate of gamma ray-irradiated mice up to 90%, outperforming the commercial radioprotection agent amifostine.
Embedding hollow Co3O4 nanoboxes into a threedimensional macroporous graphene framework for highperformance energy storage devices
Mengping Li1, Maher F. El-Kady1,2, Jee Y. Hwang1, Matthew D. Kowal1, Kristofer Marsh1, Haosen Wang1, Zhijuan Zhao1, and Richard B. Kaner1,*
1 University of California, Los Angeles, USA
2 Cairo University, Egypt
Hollow Co3O4 nanoboxes have been embedded into a threedimensional macroporous laser-scribed graphene matrix to produce composite electrodes with improved electrochemical properties.
Generation of graphene-based aerogel microspheres for broadband and tunable high-performance microwave absorption by electrospinning-freeze drying process
Fanbin Meng, Huagao Wang, Wei Wei, Zijian Chen, Tian Li,Chunyuan Li, Yu Xuan, and Zuowan Zhou*
Southwest Jiaotong University, China
Graphene-based aerogel microspheres showing broadband, tunable and high-performance microwave absorption have been produced on a large scale by electrospinning-freeze drying followed by calcination.
Ultra-robust triboelectric nanogenerator for harvesting rotary mechanical energy
Xinyu Du1, Nianwu Li1, Yuebo Liu2, Jiaona Wang2, Zuqing Yuan1,4, Yingying Yin1,4, Ran Cao1,4, Shuyu Zhao2, Bin Wang2, Zhong Lin Wang1,3,4, and Congju Li1,*
1 National Center for Nanoscience and Technology (NCNST), China
2 Beijing Institute of Fashion Technology, China
3 Georgia Institute of Technology, USA
4 University of Chinese Academy of Sciences, China
Scale-like structured triboelectric nanogenerator (SL-TENG) with outstanding robustness and long service life exhibits the feasibility as a power source for self-powered electronics and the potential for massive electricity generation.
Surface charge tunable nanoparticles for TNF-α siRNA oral delivery for treating ulcerative colitis
Shoaib Iqbal1, Xiaojiao Du2,3,*, Jilong Wang1, Hongjun Li2, Youyong Yuan2,3, and Jun Wang2,3,4
1 University of Science and Technology of China, China
2 South China University of Technology, China
3 National Engineering Research Center for Tissue Restoration and Reconstruction, China
4 Research Institute for Food Nutrition and Human Health, China
The modification of surface charge of siRNA encapsulated polymeric nanoparticles is reported here and evaluation of their in vivo fate against ulcerative colitis is carried out.
Diameter evolution of selective area grown Ga-assisted GaAs nanowires
Hanno Küpers1,*, Ryan B. Lewis1, Abbes Tahraoui1, Mathias Matalla2, Olaf Krüger2, Faebian Bastiman1, Henning Riechert1, and Lutz Geelhaar1
1 Paul-Drude-Institut für Festkörperelektronik, Germany
2 Leibniz-Institut für Höchstfrequenztechnik, Germany
Tapering of nanowires is explored and a model is built that can explain complete nanowire shape by consideration of diameter variation due to droplet size and direct radial growth on the sidewall in a consistent way.
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