Nuclear Magnetic Resonance Study of Atomic Motion in Bimetallic Perovskite-Type Borohydrides ACa(BH4)3 (A = K, Rb, or Cs)

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b06540

Roman V. Skoryunov, Alexei V. Soloninin, Olga A. Babanova, Alexander V. Skripov, Pascal Schouwink and Radovan Černý
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Using G0W0 Level Alignment to Identify Catechol’s Structure on TiO2(110)

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b05392

Duncan J. Mowbray and Annapaola Migani
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Synergetic Effect of Conjugated Ni(OH)2/IrO2 Cocatalyst on Titanium-Doped Hematite Photoanode for Solar Water Splitting

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b04892

Zhiliang Wang, Guiji Liu, Chunmei Ding, Zheng Chen, Fuxiang Zhang, Jingying Shi and Can Li
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Structure Prediction of Atoms Adsorbed on Two-Dimensional Layer Materials: Method and Applications

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b05035

Bo Gao, Xuecheng Shao, Jian Lv, Yanchao Wang and Yanming Ma
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Direct Optical Observation of Stimulated Emission from Hot Charge Transfer Excitons in Bulk Heterojunction Polymer Solar Cells

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b06557

Bhoj R. Gautam, Andy Barrette, Cong Mai, Liang Yan, Qianqian Zhang, Evgeny Danilov, Wei You, Harald Ade and Kenan Gundogdu
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Aluminum Nanoantenna Complexes for Strong Coupling between Excitons and Localized Surface Plasmons

Nano Letters

DOI: 10.1021/acs.nanolett.5b02584

Elad Eizner, Ori Avayu, Ran Ditcovski and Tal Ellenbogen
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Trimetallic PtPdRu Dendritic Nanocages with Three-Dimensional Electrocatalytic Surfaces

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b05867

Kamel Eid, Hongjing Wang, Victor Malgras, Zeid A. Alothman, Yusuke Yamauchi and Liang Wang
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g-C3N4 and Others: Predicting New Nanoporous Carbon Nitride Planar Structures with Distinct Electronic Properties

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b02543

W. H. Brito, Joice da Silva-Araújo and H. Chacham
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Computational Investigation into Photoswitching Efficiency of Diarylethene Derivatives: An Insight Based on the Decay Constant of Electron Tunneling

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b06738

Shohei Nishizawa, Jun-ya Hasegawa and Kenji Matsuda
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Catalysis of Lithium Chloride and Alkali Metal Borohydrides on Hydrogen Generation of Ammonia and Lithium Hydride System

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b05572

Hiroki Miyaoka, Keita Nakajima, Shotaro Yamaguchi, Taihei Aoki, Hikaru Yamamoto, Takahiro Okuda, Kiyotaka Goshome, Takayuki Ichikawa and Yoshitsugu Kojima
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Piezotronic Effect in Polarity-Controlled GaN Nanowires

ACS Nano

DOI: 10.1021/acsnano.5b03737

Zhenfu Zhao, Xiong Pu, Changbao Han, Chunhua Du, Linxuan Li, Chunyan Jiang, Weiguo Hu and Zhong Lin Wang
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Kinetics of Oxalic Acid Catalyzed and Ultrasound-Assisted Hydrolysis of 3-Glycidoxypropyltrimethoxysilane and Structural Characteristics of the Resulting Aged Sonogels

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b04990

Carlos E. T. Paccola, Carlos M. Awano, Fabio S. de Vicente, Dario A. Donatti, Makoto Yoshida and Dimas R. Vollet
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At the Molecular Level through Photophysical Studies: Structural Implications on the Reactivity of Dual-Site Sensitive Positional Isomers Toward a Gasotransmitter (H2S)

The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.5b05459

M. Venkateswarulu, Pankaj Gaur, Sougata Sinha, Avijit Pramanik and Subrata Ghosh
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Erratum: Physical and biophysical assessment of highly fluorescent, magnetic quantum dots of a wurtzite-phase manganese selenide system (2014 Nanotechnology 25 275101 [http://ift.tt/Y4NSkI] )

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Runjun Sarma, Queen Das, Anowar Hussain, Anand Ramteke, Amarjyoti Choudhury and Dambarudhar Mohanta

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The buckling of single-layer MoS 2 under uniaxial compression

Molecular dynamics simulations are performed to investigate the buckling of single-layer MoS 2 under uniaxial compression. The strain rate is found to have an important effect on the critical buckling strain, where higher strain rate leads to larger critical strain. The critical strain is almost temperature-independent for ##IMG## [http://ift.tt/Y4NJ0A] {$T\lt 50$} K, and it increases with increasing temperature for ##IMG## [http://ift.tt/1sYPsz9] {$T\gt 50$} K owing to the thermal vibration assisted healing mechanism on the buckling deformation. The length-dependence of the critical strain from our simulations is in good agreement with the prediction of the Euler buckling theory.

Jin Wu Jiang

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Immunoadjuvant activity of the nanoparticles’ surface modified with mannan

Mannan (MN) is the natural ligand for mannose receptors, which are widely expressed on dendritic cells (DCs). The purpose of this study was to assess the effect of formulation parameters on the immunogenicity of MN-decorated poly (D, L-lactide- co -glycolide) (PLGA) nanoparticles (NPs) in terms of their ability to stimulate DC phenotypic as well as functional maturation. For this purpose, NPs were formulated from either ester-terminated or COOH-terminated PLGA. Incorporation of MN in NPs was achieved through encapsulation, physical adsorption or chemical conjugation. Murine bone marrow derived DCs (BMDCs) were treated with various NP formulations and assessed for their ability to up-regulate DC cell surface markers, secrete immunostimulatory cytokines and to activate allogenic T cell responses. DCs treated with COOH-terminated PLGA-NPs containing chemically conjugated MN (MN-Cov-COOH) have shown superior performance in improving DC biological functions, compared to the rest ...

Azita Haddadi, Samar Hamdy, Zahra Ghotbi, John Samuel and Afsaneh Lavasanifar

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Enhancing the brightness of Si nanocrystal light-emitting devices with electro-excited surface plasmons

The use of electro-excited surface plasmons (SPs) in Ag nanoparticles (Ag-NPs) is shown to enhance the brightness of Si nanocrystal light-emitting devices (Si-NC LEDs). The Ag-NPs are prepared on the Si-NC thin film by ultrasonic irradiation and postannealing treatments. Electro-excited SPs on Ag-NPs are found, which are induced by electron impact on Ag-NPs and the front electrode Al layer during the charge injection process of LED. The electro-excited SPs enhance the electroluminescence of Si-NC, or LED brightness, via the SP field coupling to the exciton dipole moment of Si-NC. A maximal 5.2-fold brightness enhancement of Si-NC LED is achieved at the postannealing temperature of 200 °C. Remnant far-field radiations arising from electro-excited SPs are detected, which further supports the existence of such SPs.

Jia-Rong Chen, Zhi-Quan Zhou, Hong-Chen Hao and Ming Lu

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Size effects in bimagnetic CoO/CoFe 2 O 4 core/shell nanoparticles

The control of the size of bimagnetic nanoparticles represents an important step toward the study of fundamental properties and the design of new nanostructured magnetic materials. We report the synthesis and the structural and magnetic characterization of bimagnetic CoO/CoFe 2 O 4 core/shell nanoparticles. The material was fabricated by a seed-mediated growth high-temperature decomposition method with sizes in the range of 5–11 nm. We show that the core/shell morphology favours the crystallinity of the shell phase, and the reduction of the particle size leads to a remarkable increase of the magnetic hardening. When the size is reduced, the coercive field at 5 K increases from 21.5 kOe to 30.8 kOe, while the blocking temperature decreases from 388 K to 167 K. The size effects on the magnetic behaviour are described through a phenomenological model for strongly ferri-/antiferromagnetic coupled phases.

Gabriel C Lavorato, Enio Lima Jr, Dina Tobia, Dino Fiorani, Horacio E Troiani, Roberto D Zysler and Elin L Winkler

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On the formation of the porous structure in nanostructured a-Si coatings deposited by dc magnetron sputtering at oblique angles

The formation of the porous structure in dc magnetron sputtered amorphous silicon thin films at low temperatures is studied when using helium and/or argon as the processing gas. In each case, a-Si thin films were simultaneously grown at two different locations in the reactor which led to the assembly of different porous structures. The set of four fabricated samples has been analyzed at the microstructural level to elucidate the characteristics of the porous structure under the different deposition conditions. With the help of a growth model, we conclude that the chemical nature of the sputter gas not only affects the sputtering mechanism of Si atoms from the target and their subsequent transport in the gaseous/plasma phase towards the film, but also the pore formation mechanism and dynamics. When Ar is used, pores emerge as a direct result of the shadowing processes of Si atoms, in agreement with Thornton’s structure zone model. The introduction of He produces, in addition to th...

V Godinho, P Moskovkin, R Álvarez, J Caballero-Hernández, R Schierholz, B Bera, J Demarche, A Palmero, A Fernández and S Lucas

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Engineering of near infrared fluorescent proteinoid-poly(L-lactic acid) particles for

Background: The use of near-infrared (NIR) fluorescence imaging techniques has gained great interest for early detection of cancer owing to the negligible absorption and autofluorescence of water and other intrinsic biomolecules in this region. The main aim of the present study is to synthesize and characterize novel NIR fluorescent nanoparticles based on proteinoid and PLLA for early detection of colon tumors. Methods: The present study describes the synthesis of new proteinoid-PLLA copolymer and the preparation of NIR fluorescent nanoparticles for use in diagnostic detection of colon cancer. These fluorescent nanoparticles were prepared by a self-assembly process in the presence of the NIR dye indocyanine green (ICG), a FDA-approved NIR fluorescent dye. Anti-carcinoembryonic antigen antibody (anti-CEA), a specific tumor targeting ligand, was covalently conjugated to the P(EF-PLLA) nanoparticles through the surface carboxylate groups using the carbodiimide activation method.Results and discussionThe P(EF-PLLA) nanoparticles are stable in different conditions, no leakage of the encapsulated dye into PBS containing 4% HSA was detected. The encapsulation of the NIR fluorescent dye within the P(EF-PLLA) nanoparticles improves significantly the photostability of the dye. The fluorescent nanoparticles are non-toxic, and the biodistribution study in a mouse model showed they evacuate from the body over 24?h. Specific colon tumor detection in a chicken embryo model and a mouse model was demonstrated for anti-CEA-conjugated NIR fluorescent P(EF-PLLA) nanoparticles. Conclusions: The results of this study suggest a significant advantage of NIR fluorescence imaging using NIR fluorescent P(EF-PLLA) nanoparticles over colonoscopy. In future work we plan to broaden this study by encapsulating cancer drugs such as paclitaxel and/or doxorubicin, within these biodegradable NIR fluorescent P(EF-PLLA) nanoparticles, for both detection and therapy of colon cancer.

Michal Kolitz-Domb

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