69 research outputs found

    Correction: One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor

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    Correction for ‘One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor’ by Jayakumar Kumarasamy, et al., Nanoscale, 2018, DOI: 10.1039/c7nr06952a.</p

    Correction: One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor

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    Correction for ‘One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor’ by Jayakumar Kumarasamy, et al., Nanoscale, 2018, DOI: 10.1039/c7nr06952a. The names of two of the co-authors are given incorrectly in the published article. “Jayakumar Kumarasamy� should instead be listed as “Kumarasamy Jayakumar�, and “Dharuman Venkatraman� should instead be listed as “Venkataraman Dharuman� as shown in the corrected author list above. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers

    On using Directional Information for Parameter Space Decomposition in Ellipse Detection

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    In this paper we use the parametric polar representation to extend the application of edge directional information from circle to ellipse extraction. As a result we obtain a mapping which decomposes the parameter space required for ellipse extraction into two independent sub-spaces and one final histogram accumulator. The mapping includes the tangent of the angle of the first and second directional derivatives. These tangents are computed by considering edge direction at two border points. We show that the use of gradient information for parameter space decomposition avoids the intensive point labelling imposed by geometric constraints used by other approaches

    THE VISUAL SCORE METHOD: A NOVEL APPROACH TO EXPRESSING MUSIC THROUGH ART: Transforming Music into Art: A New Frontier in Expression

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    The Visual Score Method is a groundbreaking approach to artistic expression that systematically translates musical compositions into visual representations. This innovative method bridges the gap between auditory and visual art forms, allowing artists to create paintings inspired directly by the elements of music, such as rhythm, melody, harmony, dynamics, notes, and pitch. Through a structured yet flexible process, the method encourages artistic freedom and personal interpretation, resulting in unique works of art that reflect the emotional and structural complexity of music. By integrating music theory and artistic creativity, the Visual Score Method offers a novel way to experience and appreciate music while expanding the possibilities of visual art

    Turnaround Productivity: An exploratory study towards improvement

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    The research explores ways to improve productivity in turnaround/shutdown projects from a contractor perspective.Civil Engineering | Construction Management and Engineerin

    Electrochemically reduced graphene-gold nano particle composite on indium tin oxide for label free immuno sensing of estradiol

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    Electro reduced graphene and gold nano particle (ErG/AuNP) composite is prepared on indium tin oxide (ITO) surface. Characterization by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), Raman spectroscopy (RS), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) techniques reveals the formation of vertical and flat oriented ErG films on the ITO. The AuNP deposition changes the flat oriented ErGs into vertical orientation indicated by the FESEM. Coherent interactions between the ITO, ErG and AuNPs are responsible for the discrete formation of vertical oriented hetero structures of ErG-AuNP composite on the ITO. Electro-chemical properties are investigated using [Fe(CN)(6)](3-/4-) and [Ru(NH3)](2+/3+) redox probes using cyclic voltammetry (CV). While the [Fe(CN)(6)](3-/4-) shows fast reversible behavior, the [Ru(NH3)](2+/3+) reveals very slow charge transport on both ErG and ErG/AuNP films indicating the multi and compact graphene layer posses positive charge at pH 6.5 used for preparing these composites. Immuno sensing of breast cancer inducing hormone 17 beta-estradiol (E2) is demonstrated in presence of [Fe(CN)(6)](3-/4-). Estrone (E1) and estriol (E3) antigens are used as the controls. The near vertical immobilization of anti-estradiol-antibody enhances the lowest detection limit of 0.1 fmol and dynamic range of 1 x 10(-3)-0.1 x 10(-12) M without any signal amplifiers. These results prove that the acid group of the GO is reduced selectively in controlled way by simple potential cycling method which could not be achieved by other chemical reduction methods. Hence, the protocol is an alternative, simple and inexpensive technique for producing few layered vertical graphene and ErG/AuNP composite than the solution based chemical synthesis methods reported. (C) 2013 Elsevier Ltd. All rights reserved.X112019sciescopu
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