Artículos

Artículos Encontrados 34 registros  inicioanterior25 - 34  ir al registro: La búsqueda tardó 0.00 segundos. 
25.
23 p, 6.5 MB DNA polymorphism sensitive impedimetric detection on gold-nanoislands modified electrodes / Bonanni, Alessandra (Nanyang Technological University. School of Physical and Mathematical Sciences) ; Pividori, María Isabel (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Grup de Sensors i Biosensors)
Nanocomposite materials are being increasingly used in biosensing applications as they can significantly improve biosensor performance. Here we report the use of a novel impedimetric genosensor based on gold nanoparticles graphite-epoxy nanocomposite (nanoAu-GEC) for the detection of triple base mutation deletion in a cystic-fibrosis (CF) related human DNA sequence. [...]
2015 - 10.1016/j.talanta.2015.01.004
Talanta, Vol. 136 (May 2015) , p. 95-101  
26.
22 p, 1.4 MB Aptamer-antibody sandwich assay for cytochrome c employing a MWCNT platform and the electrochemical impedance technique / Ocaña Tejada, Cristina (Universitat Autònoma de Barcelona. Sensors and Biosensors Group) ; Lukic, Sonja (University of Regensburg. Institut of Analytical Chemistry, Chemo- and Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Sensors and Biosensors Group)
We report on a sensitive aptamer-antibody interaction-based assay for cytochrome c (Cytc) using electrochemical impedance. 4-Amino benzoic acid is used for the oriented immobilization of aminated aptamers onto multi-walled carbon nanotubes on the surface of a screen-printed electrode via electrochemical grafting. [...]
2015 - 10.1007/s00604-015-1540-6
Mikrochimica acta, Vol. 182, Issue 11 (August 2015) , p. 2045-2053  
27.
10 p, 3.6 MB Toward nanoanalytical chemistry : case of nanomaterial integration into [bio]sensing systems / Merkoçi, Arben (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Alegret, Salvador, 1947- (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors)
Analytical chemistry-oriented nanotechnology, or nanoanalytical chemistry, at nanometer or macroscale, at both nanometer and macroscale dimensions, is on its way to becoming a field of great potential. [...]
La nanotecnologia orientada al camp de la química analítica, o química nanoanalítica, ja sigui a escala nanomètrica o a macroescala, s'està convertint en una matèria de gran potencial. Els conceptes associats a aquesta química nanoanalítica són acceptats ràpidament, entre d'altres, pel camp de la biologia molecular. [...]

2005
Contributions to science, Vol. 3, Núm. 1 (2005) , p. 57-66  
28.
4 p, 611.3 KB Current-induced cleaning of graphene / Moser, Joel (Centre d'Investigació en Nanociència i Nanotecnologia (CIN2)) ; Barreiro Megino, Amelia (Centre d'Investigació en Nanociència i Nanotecnologia (CIN2)) ; Bachtold, Adrian (Centre d'Investigació en Nanociència i Nanotecnologia (CIN2)) ; American Physical Society
A simple yet highly reproducible method to suppress contamination of graphene at low temperature inside the cryostat is presented. The method consists of applying a current of several milliamperes through the graphene device, which is here typically a few microns wide. [...]
2007 - 10.1063/1.2789673
Applied physics letters, Vol. 91, Issue 16 (October 2007) , p. 163513/1-163513/3  
29.
4 p, 494.5 KB Nondestructive thickness measurement of biological layers at the nanoscale by simultaneous topography and capacitance imaging / Casuso, Ignacio (Universitat de Barcelona. Departament d'Electrònica) ; Fumagalli, Laura (Universitat de Barcelona. Departament d'Electrònica) ; Gomila, Gabriel (Universitat de Barcelona. Departament d'Electrònica) ; Padrós, Esteve (Universitat Autònoma de Barcelona. Departament de Bioquímica i Biologia Molecular) ; American Physical Society
Nanoscale capacitance images of purple membrane layers are obtained simultaneously to topography in a nondestructive manner by operating alternating current sensing atomic force microscopy in jumping mode. [...]
2007 - 10.1063/1.2767979
Applied physics letters, Vol. 91, Issue 6 (August 2007) , p. 063111/1-063111/3  
30.
5 p, 1.3 MB Inducing bistability with local electret technology in a microcantilever based non-linear vibration energy harvester / López Suárez, Miquel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Agustí Batlle, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Torres Canals, Francisco (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ; Abadal Berini, Gabriel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; American Institute of Physics
A micro-electro-mechanical system based vibration energy harvester is studied exploring the benefits of bistable non linear dynamics in terms of energy conversion. An electrostatic based approach to achieve bistability, which consists in the repulsive interaction between two electrets locally charged in both tip free ends of an atomic force microscope cantilever and a counter electrode, is experimentally demonstrated. [...]
2013 - 10.1063/1.4800926
Applied physics letters, Vol. 102, Issue 15 (April 2013) , p. 153901/1-153901/4  
31.
16 p, 838.2 KB Evolution and economic significance of listwaenites associated with Neoproterozoic ophiolites in south Eastern Desert, Egypt / Azer, M.K. (National Research Centre (El Caire, Egipte). Geological Sciences Department)
Most South Eastern Desert ophiolites are found along the Allaqi-Heiani-Gerf suture along the Egypt-Sudan border. Serpentinites, altered slices of upper mantle, are the main components of this suture and other sutures in the Arabian-Nubian Shield. [...]
2013 - 10.1344/105.000001777
Geologica acta, Vol. 11, Núm. 1 (març 2013) , p. 113-128  
32.
15 p, 198.2 KB Movimientos anti-mineros: el caso de Pascua-Lama en Chile / Urkidi Azkarraga, Leire
En los últimos años, el aumento de proyectos de minería aurífera en América Latina ha dado lugar a toda una serie de protestas comunitarias englobadas en la consigna del "NO a la minería de oro". [...]
In recent years, the increase in gold mining projects in Latin America has given rise to a set of communitarian protests under the slogan of "No mining". Pascua-Lama conflict, in the Chilean Valley of Huasco, was studied during a four month period of field-work within the Action-Research methodology. [...]

2008
Revibec : revista de la Red Iberoamericana de Economia Ecológica, V. 8 (2008) p. 63-77  
33.
14 p, 76.5 KB Nuevos conflictos ambientales mineros en Argentina. El caso Esquel (2002-2003) / Walter, Mariana (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Desde el año 2003, se ha producido en Argentina un aumento en la conflictividad social de los proyectos mineros. El artículo analiza el primer conflicto ambiental minero que instala en la agenda pública argentina el debate en torno de esta actividad, en la ciudad de Esquel (2002-2003). [...]
Since 2003, Argentina is experiencing an increasing amount of environmental conflicts related to mining projects. This article analyses the first mining conflict that started a public debate about gold mining activities and its impacts, in Esquel City (2002-2003). [...]

2008
Revibec : revista de la Red Iberoamericana de Economia Ecológica, V. 8 (2008) p. 15-28  
34.
18 p, 593.0 KB La confraria de sant Marc de Barcelona (segles XIII a XV) / Fonoyet Catot, Lourdes
En aquest article, s'hi ofereix una nova interpretació d'una de les confraries d'ofici més importants de la Barcelona medieval. La recuperació d'informació, fins ara inèdita, ha permès traçar els eixos bàsics de l'entitat a nivell social, religiós i artístic. [...]
In this article we offer a new interpretation of one of the most important trade brotherhoods in medieval Barcelona. The information retrieved, until now previously unknown, has allowed us to outline the core of the entity, socially, religiously and artistically. [...]

2006 - 10.5565/rev/locus.159
Locus amoenus, N. 8 (2005-2006) p. 29-46  

Artículos : Encontrados 34 registros   inicioanterior25 - 34  ir al registro:
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