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Preparation and characterization of magnetite–PDMS composites by magnetic induction heating

23-Aug-2015 | Author(s): Mohamed S.A. Darwish, Ivan Stibor, Materials Chemistry and Physics, 2015

Publication date: Available online 21 August 2015 Source:Materials Chemistry and Physics Author(s): Mohamed S.A. Darwish, Ivan Stibor Magnetic induction heating was used to produce magnetite–Poly (dimethylsiloxane) (PDMS) composites in the presence of the magnetite nanoparticles. ...

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A Polymer-Brush-Based Nanovalve Controlled by Nanoparticle Additives: Design Principles

21-Aug-2015 | Rob D. Coalson; Afshin Eskandari Nasrabad; David Jasnow; Anton Zilman, Journal of Physical Chemistry B, 2015

Polymer-grafted surfaces and channels are increasingly used for the design of responsive materials and sensors due to robust performance and ease of use. Various strategies for the control of the nanoscale morphologies of such materials and devices are being tested. Entropic repulsion between the ...

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Adsorptive removal of dyes from synthetic and real textile wastewater using magnetic iron oxide nanoparticles: Thermodynamic and mechanistic insights

20-Aug-2015 | Nashaat N. Nassar, Nedal N. Marei, Gerardo Vitale, Laith A. Arar, The Canadian Journal of Chemical Engineering, 2015

Abstract Magnetic iron‐oxide nanoparticles exhibit high efficiency in wastewater treatment for many important reasons, including that they can remove contaminants from wastewater rapidly owing to their high external surface area/unit mass and interstice reactivity. Additionally, this type of ...

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Tens of thousands‐fold upconversion luminescence enhancement induced by a single gold nanorod

19-Aug-2015 | Qiuqiang Zhan, Xin Zhang, Yuxiang Zhao, Jing Liu, Sailing He, Laser & Photonics Reviews, 2015

Abstract Upconversion nanoparticles (UCNPs) have gained increasing attention for their wide applications in bioimaging, displays and photovoltaics. However, low efficiency has been an ongoing challenge for further developments. In this work, it is proposed that the ultrasmall size of UCNPs is ...

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Surface modification of TiO2 nanoparticles and preparation of TiO2/PDMS hybrid membrane materials

19-Aug-2015 | Tianjian Yang, Shoushan Sang, Xiao Zhao, Ziyong Zhang, Huaxin Rao, Polymer Composites, 2015

TiO2 nanoparticles were surface‐modified by a convenient and mild sol–gel method. A novel hybrid membrane material was prepared by crosslinking reaction based on poly(dimethylsiloxane) (PDMS) as organic matrix and TiO2 nanoparticles as inorganic filler as well as a crosslinking agent. The ...

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Mesoporous Pores Impregnated with Au Nanoparticles as Effective Dielectrics for Enhancing Triboelectric Nanogenerator Performance under Harsh Environment

19-Aug-2015 | Jinsung Chun; Jin Woong Kim; Woo-Suk Jung; Chong-Yun Kang; Sang-Woo Kim; Zhong Lin Wang; Jeong Min Baik, Energy & Environmental Science, 2015

A facile and scalable synthesis of mesoporous films impregnated with Au nanoparticles (NPs) as effective dielectrics is demonstrated for enhancing the nanogenerator performance based on vertical contact-separation mode. This technique is so simple and scalable, providing a promising solution for ...

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Determination of ion pairing on capping structures of gold nanoparticles by phase extraction

19-Aug-2015 | Han-Wen Cheng; Mark J. Schadt; Kaylie Young; Jin Luo; Chuan-Jian Zhong, Analyst, 2015

As nanoparticles with different capping structures in solution phases have found widespread applications of wide interest, understanding how the capping structure change influences their presence in phases or solutions is important for gaining full control over both the intended nanoactivity and ...

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Dielectric properties of poly(4‐vinylphenol) with embedded PbO nanoparticles

18-Aug-2015 | WooJe Han, Hong‐Sub Lee, Uzma K. H. Bangi, Byungwook Yoo, Hyung‐Ho Park, Polymers for Advanced Technologies, 2015

An organic/inorganic nanocomposite film was synthesized using poly(4‐vinylphenol) (PVPh) as an organic insulating polymer and PbO nanoparticles as a high‐k inorganic material to serve as an organic insulator with enhanced dielectric properties. PbO nanoparticles were dispersed into propylene ...

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Preparation and characterization of nanostructured thin films of Au and Ag nanoparticles synthesized by ascorbic acid on modified glass surface

18-Aug-2015 | Saadat Rastegarzadeh, Mohammad Azarkish, Shirin Abdali, Surface and Interface Analysis, 2015

Immobilization of Ag and Au nanoparticles (NPs) synthesized by ascorbic acid on chemically modified glass surface has been studied. 3‐[2‐(2‐Aminoethylamino)ethylamino]propyl‐trimethoxysilane (AMPTS), N‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilan, and 3‐trimethoxysilyl‐1‐propanethiol (MSPT) were ...

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Transformable Peptide Nanocarriers for Expeditious Drug Release and Effective Cancer Therapy via Cancer‐Associated Fibroblast Activation

17-Aug-2015 | Tianjiao Ji, Ying Zhao, Yanping Ding, Jing Wang, Ruifang Zhao, Jiayan Lang, Hao Qin, Xiaoman Liu, Jian Shi, Ning Tao ..., Angewandte Chemie International Edition, 2015

Abstract A novel cleavable amphiphilic peptide (CAP) was designed to be specifically responsive to fibroblast activation protein‐α (FAP‐α), a protease specifically expressed on the surface of cancer‐associated fibroblasts. The CAP self‐assembled into fiber‐like nanostructures in solution, ...

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