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16,674 Newest Publications about the topic solution

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Single-molecule transistors

22-10-2014 | Mickael L. Perrin; Enrique Burzurí; Herre S. J. van der Zant, Chemical Society Reviews, 2014

The use of a gate electrode allows us to gain deeper insight into the electronic structure of molecular junctions. It is widely used for spectroscopy of the molecular levels and its excited states, for changing the charge state of the molecule and investigating higher order processes such as ...

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Nanoparticle characterization based on STM and STS

22-10-2014 | Shinya Kano; Tsukasa Tada; Yutaka Majima, Chemical Society Reviews, 2014

In this review, we describe recent progress made in the study of nanoparticles characterized by scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS). Basic principles of STM measurements and single-electron tunneling phenomena through a single NP are summarized. We ...

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A recyclable chitosan-based QCM biosensor for sensitive and selective detection of breast cancer cells in real time

21-10-2014 | Shaolian Zhang; Haihua Bai; Jinmei Luo; Peihui Yang; Jiye Cai, Analyst, 2014

A highly sensitive and recyclable quartz crystal microbalance (QCM) biosensor was developed using chitosan (CS) and folic acid (FA), generating conjugates that are selectively recognized by MCF-7 cancer cell over-expressed folic acid receptors. The prepared CS–FA conjugate was characterized by ...

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Stepped spin crossover in Fe(III) halogen substituted quinolylsalicylaldimine complexes

21-10-2014 | Wasinee Phonsri; David James Harding; Phimphaka Harding; Keith S. Murray; Boujemaa Moubaraki; Ian Gass; John D Cashi ..., Dalton Transactions, 2014

The reaction of Fe(NCS)3 prepared in situ in MeOH with Hqsal-X (Hqsal-X = 5-X-N-quinolylsalicylaldimine) in CH2Cl2 yields the FeIII complexes, [Fe(qsal-X)2]NCS·solvent (X = F 1; X = Cl, 2, Br, 3 solvent = MeOH; X = I, solvent = 0.25CH2Cl2·0.5MeOH 4) in moderate to good yields. IR spectroscopy ...

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In Situ Particle Film ATR FTIR Spectroscopy of poly (N-isopropyl acrylamide) (PNIPAM) Adsorption onto Talc

21-10-2014 | David Beattie; Jonas Addai-Mensah; audrey beaussart; George V Franks; Kai Ying Yeap, Physical Chemistry Chemical Physics, 2014

The adsorption of poly (N-isopropyl acrylamide) (PNIPAM) onto talc from aqueous solutions has been studied using the in situ methodology of particle film attenuated total reflection (ATR) Fourier transform infrared (FTIR) spectroscopy. PNIPAM was observed to adsorb significantly onto the talc ...

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RAFT polymerization kinetics and polymer characterization of P3HT rod–coil block copolymers

18-10-2014 | Melissa R. Kern, Stephen G. Boyes, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT Here an in‐depth analysis of reversible addition–fragmentation chain transfer (RAFT) polymerization kinetics is reported in order to provide better definition of poly(3‐hexylthiophene) (P3HT) rod–coil block copolymers thru a more thorough understanding of the RAFT polymerization of ...

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Preparation, swelling properties, and displacement performance of functional amphiphilic microspheres

18-10-2014 | Peng Zhang, Yuanjun Dong, Wenzhang Huang, Zhenfu Jia, Chengyu Zhou, Maolei Guo, Haiyang Yu, Journal of Applied Polymer Science, 2014

ABSTRACT Because polymers containing benzyl chloromethyl groups are easily modified for functional production, the dispersion polymerization of acrylamide, 4‐vinylbenzyl chloride, and N,N‐methylene bisacrylamide in dimethylformamide initiated with α,α‐azobisisobutyronitrile was carried out to ...

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Fabrication and characterization of novel hyperbranched polyimides with excellent organosolubility, thermal and mechanical properties

18-10-2014 | Wenqiu Chen, Quantao Li, Quanyuan Zhang, Zushun Xu, Xianbao Wang, Changfeng Yi, Journal of Applied Polymer Science, 2014

ABSTRACT A series of amine‐terminated and anhydride‐terminated hyperbranched polyimides (HBPIs) were successfully prepared with various commercial dianhydrides and a novel BB′2‐type aromatic triamine, 2,4,6‐tris[4‐(4‐aminophenoxy)phenyl]pyridine, with a symmetrical triaryl‐substituted ...

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Polystyrene/attapulgite nanocomposites prepared via in situ suspension polymerization with redox initiation system

18-10-2014 | Haicun Yang, Liu Zhang, Wenzhong Ma, Hongting Pu, Fanghong Gong, Journal of Applied Polymer Science, 2014

ABSTRACT A series of polymer–clay nanocomposites consisting of polystyrene (PS) and attapuglite (ATP) were prepared successfully. First, silane coupling agent containing aromatic tertiary amine groups was synthesized to functionalize ATP (M‐ATP). Then, PS nanocomposites with varied clay ...

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Electrochemical synthesis and In situ spectroelectrochemistry of conducting NMPy‐TiO2 and ZnO polymer nanocomposites for Li secondary battery applications

18-10-2014 | Jalal Arjomandi, Niloofar Keramat Irad Mossa, Babak Jaleh, Journal of Applied Polymer Science, 2014

ABSTRACT Poly(N‐methylpyrrole) (PNMPy), poly(N‐methylpyrrole‐TiO2) (PNMPy‐TiO2), and poly (N‐methylpyrrole‐ZnO) (PNMPy‐ZnO) nanocomposites were synthesized by in situ electropolymerization for cathode active material of lithium secondary batteries. The charge–discharging behavior of a ...

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