Friday, November 28, 2014

Crystal lattice determination of ZnSe nanowires with polarization-dependent second harmonic generation microscopy

We demonstrate a noninvasive optical microscopy technique based on polarization-dependent second harmonic generation for determining the crystal lattice structure and microscopic heterogeneities within individual nanostructures. Differentiation between periodically twinned and wurtzite ZnSe nanowires (NWs) was demonstrated, and measurement of the cubic lattice rotation orientation around the NW axis was determined within 1° accuracy. Zinc blende NWs were differentiated from wurtzite. The technique can be used for quality inspection and optimization of growth conditions for nanostructures.

Richard Cisek, Danielle Tokarz, Nehad Hirmiz, Ankur Saxena, Alexander Shik, Harry E Ruda and Virginijus Barzda

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Atomic layer deposition of lithium phosphates as solid-state electrolytes for all-solid-state microbatteries

Atomic layer deposition (ALD) has been shown as a powerful technique to build three-dimensional (3D) all-solid-state microbattery, because of its unique advantages in fabricating uniform and pinhole-free thin films in 3D structures. The development of solid-state electrolyte by ALD is a crucial step to achieve the fabrication of 3D all-solid-state microbattery by ALD. In this work, lithium phosphate solid-state electrolytes were grown by ALD at four different temperatures (250, 275, 300, and 325 °C) using two precursors (lithium tert-butoxide and trimethylphosphate). A linear dependence of film thickness on ALD cycle number was observed and uniform growth was achieved at all four temperatures. The growth rate was 0.57, 0.66, 0.69, and 0.72 Å/cycle at deposition temperatures of 250, 275, 300, and 325 °C, respectively. Furthermore, x-ray photoelectron spectroscopy confirmed the compositions and chemical structures of lithium phosphates deposited by ALD. Moreover, the lithium phosph...

Biqiong Wang, Jian Liu, Qian Sun, Ruying Li, Tsun-Kong Sham and Xueliang Sun

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Nanoscale phase behavior on flat and curved membranes

The diverse physical properties of membranes play a critical role in many membrane associated biological processes. Proteins responsible for membrane transport can be affected by the lateral membrane order and lateral segregation of proteins is often controlled by the preference of certain membrane anchors for membrane phases having a physically ordered state. The dynamic properties of coexisting membrane phases are often studied by investigating their thermal behavior. Optical trapping of gold nanoparticles is a useful tool to generate local phase transitions in membranes. The high local temperatures surrounding an irradiated gold nanoparticle can be used to melt a part of a giant unilamellar lipid vesicle (GUV) which is then imaged using phase sensitive fluorophores embedded within the bilayer. By local melting of GUVs we reveal how a protein-free, one component lipid bilayer can mediate passive transport of fluorescent molecules by localized and transient pore formation. Also,...

Thomas Andersen, Azra Bahadori, Dino Ott, Anders Kyrsting, S Nader S Reihani and Poul M Bendix

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Spatial resolution in thin film deposition on silicon surfaces by combining silylation and UV/ozonolysis

A simple procedure has been developed for the processing of silicon wafers in order to facilitate the spatially resolved growth of thin solid films on their surfaces. Specifically, a combination of silylation and UV/ozonolysis was tested as a way to control the concentration of the surface hydroxo groups required for subsequent atomic layer deposition (ALD) of metals or oxides. Water contact angle measurements were used to evaluate the hydrophilicity/hydrophobicity of the surface, a proxy for OH surface coverage, and to optimize the UV/ozonolysis treatment. Silylation with hexamethyldisilazane, trichloro(octadecyl)silane, or trimethylchlorosilane was found to be an efficient way to block the hydroxo sites and to passivate the underlying surface, and UV/O 3 treatments were shown to effectively remove the silylation layer and to regain the surface reactivity. Both O 3 and 185 nm UV radiation were determined necessary for the removal of the silylation layer, and ...

Lei Guo and Francisco Zaera

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Fletching-shaped Bi 4 Te 3 –ZnTe heterostructure nanowires

We investigated Bi 4 Te 3 –ZnTe axial heterostructure nanowires grown by physical vapor transport at the substrate temperature of 450 °C, utilizing ZnTe as the source and Bi 2 Te 3 as the catalyst. The temperatures of the source and catalyst materials were individually controlled by separating the source and catalyst boats. The axial heterostructure nanowires consisted of ZnTe and Bi 4 Te 3 segments. The Bi 4 Te 3 segment had an interesting fletching shape with three wings surrounded by a ZnO shell. A systematic redshift in the nanowire’s photoluminescence was observed as the excitation laser spot was moved from the heterojunction toward the root of the ZnTe segment, attributed to the formation of deep defect states under the Te-rich environment that resulted from using Bi 2 Te 3 as the catalyst instead of Bi.

Man Suk Song and Yong Kim

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Nanostructured TiO 2 /carbon nanosheet hybrid electrode for high-rate thin-film lithium-ion batteries

Heterogeneous nanostructured electrodes using carbon nanosheets (CNS) and TiO 2 exhibit high electronic and ionic conductivity. In order to realize the chip level power sources, it is necessary to employ microelectronic compatible techniques for the fabrication and characterization of TiO 2 -CNS thin-film electrodes. To achieve this, vertically standing CNS grown through a catalytic free approach on a TiN/SiO 2 /Si substrate by plasma enhanced chemical vapour deposition (PECVD) was used. The substrate-attached CNS is responsible for the sufficient electronic conduction and increased surface-to-volume ratio due to its unique morphology. Atomic layer deposition (ALD) of nanostructured amorphous TiO 2 on CNS provides enhanced Li storage capacity, high rate performance and stable cycling. The amount of deposited TiO 2 masks the underlying CNS, thereby controlling the accessibility of CNS, which gets reflected in the total electrochemica...

S Moitzheim, C S Nimisha, Shaoren Deng, Daire J Cott, C Detavernier and P M Vereecken

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Synthesis of nano-bowls with a Janus template




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05153J, Paper

Alexander H. Mo, Preston B. Landon, Chris D. Emerson, Chen Zhang, Paula Anzenberg, Siddhartha Akkiraju, Ratnesh Lal

Silica nanobowls can be formed by the removal of polystyrene from a spontaneously formed Janus template.

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Investigation of the localized surface plasmon effect from Au nanoparticles in ZnO nanorods for enhancing the performance of polymer solar cells




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05194G, Paper

Yu-Che Ho, Shao-Hsuan Kao, Hsin-Che Lee, Sheng-Kai Chang, Cheng-Che Lee, Ching-Fuh Lin

The organic polymer solar cell is recognized as one of the most competitive technologies of the next generation.

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Ionic liquids self-combustion synthesis of BiOBr/Bi24O31Br10 heterojunctions with exceptional visible-light photocatalytic performances

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05451B, Paper

fa-tang li, Qing Wang, Run Jing Ran, ying-juan hao, Xiao-jing Wang, Dishun Zhao, Shizhang Qiao

Heterostructured BiOBr/Bi24O31Br10 nanocomposites with surface oxygen vacancies are constructed by a facile in situ route of one-step self-combustion of ionic liquids. The compositions can be easily controlled by simply adjusting...

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Boronic acid-modified lipid nanocapsules : novel platform for the highly efficient inhibition of hepatitis C viral entry

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR03875D, Paper

Manakaman Khanal, Alexandre Barras, Thibault Vausselin, Lucie Feneant, Rabah Boukherroub, Aloysius Sirivardena, Jean Dubuisson, Sabine Szunerits

The search for viral entry inhibitors that selectively target viral envelope glycoproteins has attracted increasing interest in recent years. Amongst the handful of molecules reported to show activity as hepatitis...

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Preparation of Multi coloured Different sized Fluorescent Gold Clusters from Blue to NIR, Structural Analysis of the Blue Emitting Au7 Cluster and Cell-Imaging by the NIR Gold Cluster

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR04338C, Paper

Arindam Banerjee, Subhasish Roy, Abhishek Baral, Rameswar Bhattacharjee, Batakrishna Jana, Ayan Datta, Surajit Ghosh

Blue, green, orange red, red and NIR emitting five different gold quantum clusters have been prepared in aqueous media by using a bioactive peptide glutathione (reduced) in physiological pH. Matrix-assisted...

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3D graphene nanomaterials for binder-free supercapacitors: scientific design for enhanced performance

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05895J, Feature Article

Wei Chen, Shuijian He

Attributed to the excellent intrinsic properties, especially the strong mechanical strength, extraordinarily high surface area and extremely high conductivity, graphene is deemed as versatile building block in fabricating functional materials...

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Patterning and tuning of electrical and optical properties of graphene by laser induced two-photon oxidation

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05207B, Communication

Jukka Aumanen, Andreas Johansson, Juha Koivistoinen, Pasi Myllyperkio, Mika Pettersson

We demonstrate a simple all-optical patterning method for graphene, based on laser induced two-photon oxidation. By tuning the intensity and dose of irradiation, the level of oxidation is controlled, band...

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Hierarchical construction of a mechanically stable peptide-graphene oxide hybrid hydrogel for drug delivery and pulsatile triggered release in vivo

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05798H, Communication

Junhua Wu, Aiping Chen, Meng Qin, Rong Huang, Guang Zhang, Bin Xue, Jiwu Wei, Ying Li, Yi Cao, Wei Wang

Hydrogels are promising materials for drug delivery and controlled release. However, for most hydrogels, the release of drugs is passively controlled by the degradation kinetics of the hydrogel. It is...

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Novel Peapoded Ni2P Nanoparticles with Improved Electrochemical Properties for Hydrogen Evolution and Lithium Storage

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05862C, Paper

Yu Wang, Yuanjuan Bai, Huijuan Zhang, Xiao Li, li liu, Haitao Xu, Huajun Qiu

A novel peapod-like Ni2P/C nanocomposite is designed and synthesized using NiNH4PO4H2O nanorods as templates. With enriched nanoporosity and large active surface areas, the peapod-like composites offer superb dual functionality as...

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Lanthanide-Doped Luminescent Nano-Bioprobes for the Detection of Tumor Markers

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05697C, Review Article

Zhuo Chen, Wei Zheng, Ping Huang, Datao Tu, Shanyong Zhou, Mingdong Huang, Xueyuan Chen

Sensitive and specific biodetection of tumor markers is essential for early-stage cancer diagnosis and therapy, and will ultimately increase patient survival. As a new generation of luminescent bioprobes, lanthanide (Ln3+)-doped...

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Multifunctional Au-Fe3O4@MOF core-shell nanocomposite catalysts with controllable reactivity and magnetic recyclability

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05421K, Paper

Fei Ke, Luhuan Wang, Junfa Zhu

Recovery and reuse of expensive catalysts are important in both heterogeneous and homogenous catalysis due to economic and environmental reasons. This work reports a novel multifunctional magnetic core-shell gold catalyst...

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Global Transcriptomic Analysis of Model Human Cell Lines Exposed to Surface-Modified Gold Nanoparticles: The Effect of Surface Chemistry

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05166A, Paper

Elissa M Grzincic, Jie An Yang, Jenny Drnevich, Priscila Falagan-Lotsch, Catherine Murphy

Gold nanoparticles (Au NPs) are attractive for biomedical applications not only for their remarkable physical properties, but also for the ease of which their surface chemistry can be manipulated. Many...

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Giant Piezoresistivity in Aligned Carbon Nanotube Nanocomposite: Account for Nanotube Structural Distortion at Crossed Tunnel Junctions

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05656F, Paper

Zhenghong Zhu, Shen Gong

High piezoresistivity is critical for multifunctional carbon nanotube polymer composites with sensing capability. By developing a new percolation network model, this work reveals theoretically that a giant piezoresistivity in the...

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Fabrication and optical properties of GaAs/InGaAs/GaAs nanowire core-multishell quantum well heterostructures

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05486E, Paper

Xin Yan, Xia Zhang, Junshuai Li, Yao Wu, Jiangong Cui, Xiaomin Ren

GaAs/InGaAs/GaAs nanowire core-multishell heterostructure with a strained radial In0.2Ga0.8As quantum well was fabricated by metal organic chemical vapor deposition. The quantum well exhibits dislocation-free phase-pure zinc-blende structure. Low-temperature photoluminescence spectra...

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Doping of single-walled carbon nanotubes controlled via chemical transformation of encapsulated nickelocene

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05586A, Paper

Marianna V. Kharlamova, Markus Sauer, Takeshi Saito, Yuta Sato, Kazu Suenaga, Thomas Pichler, Hidetsugu Shiozawa

Controlled doping of carbon nanotubes is elemental for their electronic applications. Here we report an approach to tune the polarity and degree of doping of single-walled carbon nanotubes via filling...

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Tuning the reorganization energy of electron transfer in supramolecular ensembles - metalloporphyrin, oligophenylenevinylenes, and fullerene - and the impact on electron transfer kinetics

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05165C, Paper

Athanassios G Coutsolelos, Christina Stangel, Christina Schubert, Georgios Rotas, Johannes Margraf, Elzbieta Regulska, Prof. Dr. Tim Clark, Nikos Tagmatarchis, Dirk M. Guldi, Tomas Torres, Susanne Kuhri

Oligo(p-phenylenevinylene) (oPPVs) wires of various lengths featuring pyridyls at one terminal and C60 moieties at the other, have been used as molecular building blocks in combination with porphyrins to construct...

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Nanoflaky MnO2/functionalized carbon nanotubes for supercapacitors: an in situ X-ray absorption spectroscopic investigation

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06439A, Paper

Han-Wei Chang, Ying-Rui Lu, Jeng-Lung Chen, Chi Liang Chen, Jyh-Fu Lee, Jin-Ming Chen, Yu-Chen Tsai, Chien-Min Chang, Ping-Hung Yeh, Wu-Ching Chou, Ya Hsuan Liou, Chungli Dong

The surfaces of acid- and amine-functionalized carbon nanotubes (C-CNT and N-CNT) were decorated with MnO2 nanoflakes as supercapacitors by a spontaneous redox reaction. C-CNT was found to have a lower...

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Polyacrylonitrile/Noble Metal/SiO2 Nanofibers as Substrates for the Amplified Detection of Picomolar Metal Ions through Plasmon-Enhanced Fluorescence

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05349D, Paper

Han Zhang, Minhua Cao, Wei Wu, Haibo Xu, Si Cheng, Li-Juan Fan

Electrospun polymer/noble metal hybrid nanofibers have triggered a rapid development as surface-enhanced Raman scattering (SERS)-active substrates over the last few years. However, polymer/noble metal nanofibers with plasmon-enhanced fluorescence (PEF) activity...

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Hybrid photon-plasmon Mach-Zehnder interferometers for high-sensitive hydrogen sensing

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06642A, Communication

Fuxing Gu, Guoqing Wu, Heping Zeng

By using PdAu nanowires as plasmonic waveguides, hybrid photon-plasmon Mach-Zehnder interferometers by integrating single-crystal PdAu alloy nanowires with silica optical microfibers are demonstrated. Based on an evanescent wave coupling technique...

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Controlled self-assembly of helical nano-ribbons formed by achiral amphiphiles

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06693F, Communication

Bo Song, Bin Liu, Yingzhi Jin, Xingxing He, Danting Tang, Guanglu Wu, Shouchun Yin

Helical nano-ribbons with a large aspect ratio were obtained through self-assembly of an achiral amphiphile. The symmetry breaking is attributed to the orderly but twisted stacking of terpyridine groups. In...

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Broadband Slow Light in One - Dimensional Logically Combined Photonic Crystals

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05810K, Paper

Alagappan Gandhi, Eng Png Ching

Here, we demonstrate broadband slow light effects in a new family of one dimensional photonic crystals, which are obtained by logically combining two photonic crystals of slightly different periods. The...

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Binary AxB1-x ionic alkaline pseudocapacitor system involving manganese, iron, cobalt, and nickel: forantion of electroactive colloids via in-situ electric field assisted coprecipitation

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05880A, Paper

Kunfeng Chen, Shu Yin, Dongfeng Xue

A new "combinatorial transition-metal cation pseudocapacitor" was demonstrated by designing combinatorial transition-metal cation pseudocapacitors with binary Ax B1-x salt electrodes involving manganese, iron, cobalt, and nickel cations in alkaline aqueous electrolyte....

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Interplay between quantum interference and conformational fluctuations in single-molecule break junctions

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05316H, Paper

Marco Berritta, David Zsolt Manrique, Colin Lambert

We theoretically explored the combined role of conformational fluctuations and quantum interference in determining the electrical conductance of single-molecule break junctions. In particular we computed the conductance of a family...

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Magnetic Polyaniline Nanohybrid for MR Imaging and Redox-sensing of Cancer Cells

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06340F, Communication

Yoochan Hong, Seungyeon Hwang, Dan Heo, Bongjune Kim, Minhee Ku, Eugene Lee, Seungjoo Haam, Dae Sung Yoon, Jaemoon Yang, Jin-Suck Suh

A synthetic process for constructing an organo-metal nanohybrid is described. This process uses polyaniline as a ligand in order to fabricate magnetic nanoparticles. This nanohybrid shows imaging potential uses as...

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Multifunctional Magnetic and Fluorescent Core-shell Nanoparticles for Bioimaging

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06104G, Communication

Yanjiao Lu, Bicheng He, Jie Shen, Jie Li, Wantai Yang, Meizhen Yin

Novel magnetic and fluorescent core-shell nanoparticles have been fabricated, which exhibit superparamagnetic behavior and emit strong near-infrared fluorescence. The nanoparticles are highly biocompatible and accumulate in cell nuclei via strong...

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Evaporation induced wrinkling of graphene oxide at the nanoparticle interface

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR05832A, Communication

Feng Wang, Juewen Liu

With the thickness of only a single atomic layer, graphene displays many interesting surface properties. A general observation is that wrinkles are formed on graphene oxide (GO) when it is...

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Defective TiO2-supported Cu nanoparticles as efficient and stable electrocatalysts for oxygen reduction in alkaline media

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR06128D, Paper

Ke Liu, Yang Song, Shaowei Chen

Nanocomposites based on TiO2-supported copper nanoparticles were prepared by a hydrothermal method where copper nanoparticles with or without the passivation of 1-decyne were chemically grown onto TiO2 nanocolloid surfaces (and...

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Transferrin receptor-targeted theranostic gold nanoparticles for photosensitizer delivery in brain tumors

Nanoscale , 2014, Accepted Manuscript

DOI: 10.1039/C4NR04853A, Paper

Suraj K Dixit, Thomas J Novak, Kayla Miller, Yun Zhu, Malcolm Kenney, Ann-Marie Broome

Therapeutic drug delivery across the blood-brain barrier (BBB) is not only inefficient, but also nonspecific to brain stroma. These are major limitations in the effective treatment of brain cancer. Transferrin...

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Demonstration of unusual nanoantenna array modes through direct reconstruction of the near-field signal




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR04872E, Paper

Ivan S. Sinev, Pavel M. Voroshilov, Ivan S. Mukhin, Andrey I. Denisyuk, Mikhail E. Guzhva, Anton K. Samusev, Pavel A. Belov, Constantin R. Simovski

First time experimental demonstration of unique nanoantenna array modes opens the door to a new class of light trapping structures.

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Thursday, November 27, 2014

Topological insulators based on 2D shape-persistent organic ligand complexes




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05247A, Paper

Qionghua Zhou, Jinlan Wang, Tsz Sian Chwee, Gang Wu, Xiaobai Wang, Qun Ye, Jianwei Xu, Shuo-Wang Yang

We propose a new family of 2D topological insulators based on the coordination of shape persistent organic ligands to heavy transition metals ions such as Pd2+ and Pt2+ .

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Monodisperse SnSb nanocrystals for Li-ion and Na-ion battery anodes: synergy and dissonance between Sn and Sb




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05604C, Communication

Meng He, Marc Walter, Kostiantyn V. Kravchyk, Rolf Erni, Roland Widmer, Maksym V. Kovalenko

Precisely engineered SnSb nanocrystals provide a model experimental system for tuning and understanding Li-ion and Na-ion storage properties.

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Synthesis of FeCo nanocrystals encapsulated in nitrogen-doped graphene layers for use as highly efficient catalysts for reduction reactions




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05570E, Communication

Lin Hu, Ruirui Zhang, Lingzhi Wei, Fapei Zhang, Qianwang Chen

A facile strategy to fabricate FeCo nanocrystals with nitrogen-doped graphene shells has been designed, which involves one-step thermal decomposition of Prussian blue analogue (PBA) Fe3 [Co(CN)6 ]2 spheres.

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Preparation and enhanced visible light photocatalytic activity of novel g-C3N4 nanosheets loaded with Ag2CO3 nanoparticles




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR06565D, Paper

Yunfeng Li, Lin Fang, Renxi Jin, Yang Yang, Xu Fang, Yan Xing, Shuyan Song

Novel g-C3 N4 nanosheets (g-C3 N4 -MN) loaded with highly-dispersed Ag2 CO3 nanoparticles have been successfully fabricated. The Ag2 CO3 /g-C3 N4 -MN nanocomposites exhibit enhanced photocatalytic activity in the photodegradation of MO and RhB.

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Deep-ultraviolet-light-driven reversible doping of WS2 field-effect transistors




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05129G, Paper

Muhammad Waqas Iqbal, Muhammad Zahir Iqbal, Muhammad Farooq Khan, Muhammad Arslan Shehzad, Yongho Seo, Jonghwa Eom

We have developed a doping technique to drastically improve electrical and photoelectric characteristics of WS2 field-effect transistors.

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A functionalized fluorescent dendrimer as a pesticide nanocarrier: application in pest control




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05733C, Communication

Xiaoxia Liu, Bicheng He, Zejun Xu, Meizhen Yin, Wantai Yang, Huaijiang Zhang, Jingjun Cao, Jie Shen

A water-soluble fluorescent cationic dendrimer can efficiently deliver a pesticide into the insect cells and largely increase the cytotoxicity of the drug.

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Cationic polystyrene nanospheres induce autophagic cell death through the induction of endoplasmic reticulum stress




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05509H, Paper

Hui-Wen Chiu, Tian Xia, Yu-Hsuan Lee, Chun-Wan Chen, Jui-Chen Tsai, Ying-Jan Wang

NH2 -PS induces ER stress through ROS generation and misfolded protein aggregation. Meanwhile, inhibition of the Akt/mTOR and activation of the AMPK signaling pathway was found to trigger autophagic cell death via an increase of autophagic flux or blockage of autophagosome-lysosome fusion.

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Porous cobalt-manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li-O2 batteries




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR05865H, Paper

Jian Zhang, Liangjun Wang, Leilei Xu, Xiaoming Ge, Xiao Zhao, Min Lai, Zhaolin Liu, Wei Chen

Porous cathode catalyst: the porous cobalt-manganese oxide nanocubes catalyst with large specific surface area and good electrochemical activity endows Li-O2 battery with good ORR/OER activity (reduced voltage gap), improved rate performance and excellent cycle stability.

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Precursor salt assisted syntheses of high-index faceted concave hexagon and nanorod-like polyoxometalates




Nanoscale , 2015, Advance Article

DOI: 10.1039/C4NR06309K, Paper

Jaya Pal, Mainak Ganguly, Chanchal Mondal, Yuichi Negishi, Tarasankar Pal

This paper describes an effective modified hydrothermal method for a precursor salt assisted fabrication and reshaping of two different polyoxometalates [(NH4 )2 Cu(MoO4 )2 (ACM) and Cu3 (MoO4 )2 (OH)2 (CMOH)] through straightforward and indirect routes.

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