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Simultaneous electro-catalytic oxidative determination of ascorbic acid and folic acid using Fe3O4 nanoparticles modified carbon paste electrode

01-Mar-2015 | Author(s): Mal Phebe Kingsley , Purvi B. Desai , Ashwini K. Srivastava, Journal of Electroanalytical Chemistry, 2015

Publication date: 15 March 2015 Source:Journal of Electroanalytical Chemistry, Volume 741 Author(s): Mal Phebe Kingsley , Purvi B. Desai , Ashwini K. Srivastava The fabrication of magnetite (Fe3O4) nanoparticles modified carbon paste electrode (Fe3O4-CME) enabled facile electrochemical ...

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Temperature-Dependent Infrared and Calorimetric Studies on Arsenicals Adsorption from Solution to Hematite Nanoparticles

27-Feb-2015 | Md Abdus Sabur; Sabine Goldberg; Adrian Gale; Nadine Kabengi; Hind A. Al-Abadleh, Langmuir, 2015

To address the lack of systematic and surface sensitive studies on the adsorption energetics of arsenic compounds on metal (oxyhydr)oxides, we conducted temperature-dependent ATR-FTIR studies for the adsorption of arsenate, monomethylarsonic acid, and dimethylarsinic acid on hematite ...

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Memory effect by charging of ultra‐small 2‐nm laser‐synthesized solution processable Si‐nanoparticles embedded in Si–Al2O3–SiO2 structure

25-Feb-2015 | Nazek El‐Atab, Ayman Rizk, Burak Tekcan, Sabri Alkis, Ali K. Okyay, Ammar Nayfeh, physica status solidi (a), 2015

A memory structure containing ultra‐small 2‐nm laser‐synthesized silicon nanoparticles is demonstrated. The Si‐nanoparticles are embedded between an atomic layer deposited high‐κ dielectric Al2O3 layer and a sputtered SiO2 layer. A memory effect due to charging of the Si nanoparticles is ...

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Electron‐transfer transparency of graphene: Fast reduction of metal ions on graphene‐covered donor surfaces

25-Feb-2015 | Du Won Jeong, Serin Park, Won Jin Choi, Giyeol Bae, Yun Jang Chung, Cheol‐Soo Yang, Young Kuk Lee, Ju‐Jin Kim, Noeju ..., physica status solidi (RRL) - Rapid Research Letters, 2015

The mechanism of charge transfer through nanomaterials such as graphene remains unclear, and the amount of charge that can be transferred from/to graphene without damaging its structural integrity is unknown. In this communication, we show that metallic nanoparticles can be decorated onto ...

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Preparation of New Dendrimer‐like Star Shaped Amphiphilic PEG/PCL Copolymers for Biocompatible and High Efficiency Curcumin Delivery

25-Feb-2015 | Sepideh Khoee, Alireza Kavand, Farzaneh Hashemi Nasr, Polymer International, 2015

Abstract Novel amphiphilic star‐shaped terpolymers comprised of hydrophobic poly(ε‐caprolactone), pH sensitive poly(amino ester) block and hydrophilic poly(ethylene glycol) (Mn = 1100, 2000) were synthesized using symmetric pentaerythritol as the core initiator for ring opening polymerization ...

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In-situ Production of Visible Light Absorbing Ti-based Nanoparticles in Solution and in a Photopolymerizable Cationic Matrix

25-Feb-2015 | Davy-Louis Versace; Jacques Lalevée; Jean Pierre Fouassier; Julie Bourgon; Romain Poupart, Chemical Communication, 2015

A novel straightforward approach is proposed to generate in situ, under light activation and in aerated media, visible-light absorbing and well-defined titanium-based nanoparticles (NPs) in solution and in an epoxide matrix using titanium derivatives complexes/iodonium salt photoinitiating ...

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The Role of Modifying Molecular Chains in the Formation of Organized Molecular Films of Organo-Modified Nanodiamond: Construction of a Highly Ordered Low Defect Particle Layer and Evaluation of Desorption Behavior of Organic Chains

25-Feb-2015 | Atsuhiro Fujimori; Yusuke Kasahara; Nanami Honda; Shuichi Akasaka, Langmuir, 2015

The role of organo-modifying molecular chains in the formation of molecular films of organo-modified nanodiamond is discussed herein based on interfacial chemical particle integration of organo-modified nanodiamond having a particle size of 5 nm. The surface of nanodiamond is known to be covered ...

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Rationally Designed Gibbous Stimuli-Responsive Colloidal Nanoparticles

23-Feb-2015 | Chunliang Lu; Marek Urban, ACS Nano, 2015

Multiphase colloidal copolymer nanoparticles, if properly designed, offer a number of unique properties and well-documented technological opportunities for drug delivery, nanolithography, high surface area colloidal crystals, or hollow nanoparticles, to name just a few. Using a simple free ...

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Voltammetric Immunosensor Assembled on Carbon-Pyrenyl Nanostructures for Clinical Diagnosis of Type of Diabetes

23-Feb-2015 | Vini Singh; Sadagopan Krishnan, Analytical Chemistry, 2015

Herein we report the first serum insulin voltammetric immunosensor for diagnosis of type 1 and type 2 diabetic disorders. The sensor is composed of multiwalled carbon nanotube-pyrenebutyric acid frameworks on edge plane pyrolytic graphite electrodes (PGE/MWNT/Py) to which an anti-insulin antibody ...

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Formation of Nickel Sulfide Nanoframes from Metal–Organic Frameworks with Enhanced Pseudocapacitive and Electrocatalytic Properties

20-Feb-2015 | Xin‐Yao Yu, Le Yu, Hao Bin Wu, Xiong Wen (David) Lou, Angewandte Chemie International Edition, 2015

Abstract Nanoframe‐like hollow structures with unique three‐dimensional (3D) open architecture hold great promise for various applications. Current research efforts mainly focus on frame‐like noble metals and metal oxides. However, metal sulfides with frame‐like nanostructures have been rarely ...

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