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Nanomaterial-based Biosensors using Dual Transducing Elements for Solution Phase Detection

03-Mar-2015 | Ning Li; Xiaodi Su; Yi Lu, Analyst, 2015

Biosensors incorporating nanomaterials have demonstrated superior performance compared to their conventional counterparts. Most reported sensors use nanomaterials as a single transducer of signals, while biosensor designs using dual transducing elements have emerged as new approaches to further ...


Remarkable Distinctions in the Heat-induced Phase Transition Processes of Two Poly(2-isopropyl-2-oxazoline)-based Mixed Aqueous Solutions

03-Mar-2015 | Tianjiao LI; Hui Tang; peiyi wu, Soft Matter, 2015

Detailed phase transition processes of poly (2-isopropyl-2-oxazoline) (PIPOZ)/ Poly (N-isopropylacrylamide) (PNIPAM) and PIPOZ/ poly (N-vinylcaprolactam) (PVCL) mixtures in aqueous solution were investigated by DSC, temperature-variable 1H-NMR, optical microscopy and FT-IR spectroscopy ...


A Stable Phosphanyl Phosphaketene and Its Reactivity

02-Mar-2015 | H Grutzmacher; Zhongshu Li; Chengyong Su; Xiaodan Chen; Maike Bergeler; Markus Reiher, Dalton Transactions, 2015

Sodium phospaethynolate, Na(OCP), reacts with the bulky P-chloro-diazaphosphole yielding a phosphanyl phosphaketene, which is stable for weeks under inert atmosphere in the solid state. This compound is best described as tight ion pair with a remarkable long P–P bond distance (2.44 Å). In ...


Electrochemical characterization of some bisphosphoramidates spiked carbon paste electrodes and their applications in DNA sensing

01-Mar-2015 | Author(s): Mohammad Bagher Gholivand , Leila Mohammadi-Behzad , Giti Paimard , Khodayar Gholivand , Ali A. Ebra ..., Journal of Electroanalytical Chemistry, 2015

Publication date: 1 April 2015 Source:Journal of Electroanalytical Chemistry, Volume 742 Author(s): Mohammad Bagher Gholivand , Leila Mohammadi-Behzad , Giti Paimard , Khodayar Gholivand , Ali A. Ebrahimi Valmoozi The cyclic and differential pulse voltammetric no data returned of five ...


Surgical models of Roux-en-Y gastric bypass surgery and sleeve gastrectomy in rats and mice

01-Mar-2015 | Bote G Bruinsma; Korkut Uygun; Martin L Yarmush; Nima Saeidi, Nature Protocols, 2015

Nature Protocols 10, 495 (2015). doi:10.1038/nprot.2015.027 Authors: Bote G Bruinsma, Korkut Uygun, Martin L Yarmush & Nima Saeidi Bariatric surgery is the only definitive solution currently available for the present obesity pandemic. These operations typically involve ...


Photoresponsive Self-Assemblies based on Fatty Acids

01-Mar-2015 | Anne-Laure Fameau; Audrey Arnould; Maren Lehmann; Regine von Klitzing, Chemical Communication, 2015

Photoresponsive surfactant system based on fatty acids has been developed by the introduction in aqueous solution of a photoacid generator (PAG). Self-assembly transitions are triggered by UV irradiation due to a pH change induced by the presence of PAG.


A novel aqueous lithium-oxygen cell based on oxygen-peroxide redox couple

01-Mar-2015 | Masaki Matsui; Ayumi Wada; Yasuaki Matsuda; Yasuo Takeda; Osamu Yamamoto; Nobuyuki Imanishi, Chemical Communication, 2015

The electrochemical process of an aqueous Li-O2 cell is investigated. A Li2O2 is detected as a discharging product of an aqueous Li-O2 cell using a catalyst-free carbon-based electrode. The electrolyte solution saturated with lithium hydroxide prevents the hydrolysis of the Li2O2. Since the ...


Nanometer-sized dynamic entities in an aqueous system

01-Mar-2015 | E. Mamontov; P. Zolnierczuk; M. Ohl, Physical Chemistry Chemical Physics, 2015

Using neutron spin-echo and backscattering spectroscopy, we have found that at low temperatures water molecules in an aqueous solution engage in center-of-mass dynamics that are different from both the main structural relaxations and the well-known localized motions in the transient cages of the ...


Nature of aryl-tyrosine interactions contribute to [small beta]-hairpin scaffold stability: NMR evidence for alternate ring geometry

01-Mar-2015 | Kamlesh Madhusudan Makwana; Radhakrishnan Mahalakshmi, Physical Chemistry Chemical Physics, 2015

The specific contribution of the acidic-aromatic β-sheet favouring amino acid tyrosine to the stability of short octapeptide β-hairpin structures is presented here. Solution NMR analysis in near-apolar environments suggests the energetically favourable mode of interaction to be T-shaped ...


The chain conformation and relaxation dynamics of poly(acrylic acid)-graft-poly(ethylene oxide)-graft-dodecyl in water: effect of side-chains and distribution of counterions

01-Mar-2015 | Jingliang Li; Kongshuang Zhao, Physical Chemistry Chemical Physics, 2015

We present a study on the dielectric behavior of an aqueous solution of an amphiphilic copolymer, poly(acrylic acid)-graft-poly(ethylene oxide)-graft-dodecyl (PAA-g-PEO-g-dodecyl), in the frequency range of 40 Hz to 110 MHz at varying concentrations and temperatures. After eliminating the ...


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