Postdoctoral position
(Dr. Chenzhong Li's Lab at Miami, Florida USA)
in the development of micro biosensor
A postdoc position in the development of biosensor is available immediately (February, 2010) at the Nanobioengineering/Bioelectronics Lab in the Department of Biomedical Engineering at Florida International University (Miami).
This multidisciplinary project involves the development of micro electrochemical biosensor or optical (LSPR, ECIS) based biosensing device with immunoassay platform for detecting biological molecules, biomarkers and environmental pollution. The successful candidate will be able to participate in a project dedicated to the design of flexible, implantable electrical biosensors for biomedical research and clinical diagnosis. The candidate must have good oral and written communication skills in English, and be able to interact effectively with a broad range of colleagues. Experienced postdoc are particularly encouraged to apply for a senior level research associate position.
Prospective candidates should have a PhD and experience in engineering (BioMEMS/NEMS),analytical chemistry (ideally electrochemistry, surface chemistry), or any related subjects. Techniques include, but are not limited to, single biological cell measurement, design and fabrication of immuno-chromatographic lateral flow strip, cell impedance sensor, electrochemical AFM, STM, SECM, e-beam lithography, etc. Experiences of cell culture and stem cell are assisted.
Position is available immediately. Salary will be commensurate with experience and initially will be tied to the NIH scale. The initial appointment will be for one year, with a possibility of renewal, contingent upon satisfactory performance.
The Nanobioengineering/Bioelectronics lab is located at Florida International University, Miami, Florida USA, in the Department of Biomedical Engineering. Our lab develops miniaturized biosensors for clinical diagnosis, toxicant exposure assessment, and environmental toxin detection.
Applicants should send a copy of their full CV including the names, phone numbers and e-mail addresses of 2 referees to Dr. Chenzhong Li at: licz@fiu.edu,
Nanobioengineering/Bioelectronics Lab.,
Biomedical Engineering Department, Florida International University
10555 W. Flagler St.
Miami, Florida 33199
Tel: (305) 348-0120 | Fax: (305) 348-6954
Web: http://web.eng.fiu.edu/licz/
Feb
10
Postdoctoral Fellow
Silicon thin films and silicon nanowires as negative electrodes for lithium-ion batteries
Silicon negative electrodes are attractive materials for lithium-ion batteries as the capacity of silicon is very high in comparison to graphite. However, a significant capacity fading is observed during charge/discharge cycles due to strong modification of the electrode volume induced by mechanical stress during the intercalation/deintercalation of lithium into silicon. The improvement of the cyclability of these materials can be obtained by using different morphologies of the anode materials (nanowires or thin films) and/or different electrolytes.
In this project, the postdoctoral fellow will investigate the electrochemical behaviour and the surface reactivity of silicon thin films and silicon nanowires negative electrodes towards different types of electrolytes. The cyclability of silicon electrodes with various morphologies will be studied in order to improve the performance of these materials and to understand the mechanisms of capacity fading. The negative silicon electrodes will be elaborated in collaboration with the laboratories of Ecole Polytechnique. The influence of the temperature and the nature of the electrolyte on the performance of the negative electrodes and their surface reactivity (i.e. formation of the SEI layer) will be investigated by classical electrochemical techniques i.e. Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS) as well as by surface analytical techniques i.e. X-ray Photoelectron
Spectroscopy (XPS), Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS), and Atomic Force Microscopy, ex situ (AFM) and in situ (EC-AFM).
The postdoctoral position, for a period of 12 months, will be held in the Laboratory of Electrochemistry, Chemistry of Interfaces and Modelling for Energy (LECIME, UMR 7575), Dir. Michel Cassir and in the Laboratory of Physical Chemistry of Surfaces (LPCS, UMR 7045), (http://www.chimie-paristech.fr/labos/LPCS/francais/accueil.htm), Dir. Philippe Marcus, ENSCP-Paris, Chimie ParisTech (France), in collaboration with the Ecole Polytechnique (France). This project is granted by Renault S.A.
Prior experience in electrochemistry and physical chemistry is required. The experience in lithium batteries and surface analytical techniques (XPS, TOF-SIMS, AFM) will be highly appreciated. The post-doc will be awarded to the successful applicant according to the local conditions and salary scales. For information please e-mail the contact shown below.
in the framework of a project supported by the German Ministry for Education and Research on the development of a rapid detection system for bioanalysis. The aim of the project is the investigation of different polymers, polymer-protein interactions and the use of such systems for analytical purposes. The work will comprise the areas of enzymology, biotechnology and sensors. It is focused on studies of enzyme electrodes and the characterisation of these layered structures by means of electrochemical and optical methods.
We are looking for graduates in chemistry, biochemistry, biotechnology or other related fields of natural sciences who have finished phd and who would like to work interdisciplinary. The project will last for 4 years and the payment is according to the general regulations in the public area in Germany (TVL13).
Applications please send to:
Prof. F. Lisdat
Wildau University of Applied Sciences
Biosystems Technology
Bahnhofstr.1
Wildau 15745
Germany flisdat@tfh-wildau.de
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INSTITUTE OF CHEMISTRY OF SÃO CARLOS
UNIVERSITY OF SÃO PAULO
TWO POS-DOC POSITIONS AT THE INSTITUTE OF CHEMISTRY OF SÃO CARLOS, UNIVERSITY OF SÃO PAULO AT SÃO CARLOS
There are two Pos-Doc positions, both for a two years work in the project “ELECTROCATALYSIS IV: Fundamental and applied aspects of electrocatalytic de processes, bio-electrocatalysis and kinetic instabilities”, sponsored by Fundação de Amparo a Pesquisa do Estado de São Paulo. Application can be made for the development of the following projects:
PROJECT 1
Supervisor: Prof. Dr. Edson Antonio Ticianelli (edsont@iqsc.usp.br). Summary: The project objective is focused in the development of carbon-dispersed catalysts formed by colloidal metallic particles, for the electrocatalysis of the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFC). Characterization of the materials should be made by using several techniques such as X-ray diffraction, transmission electron microscopy, in situ X-ray absorption spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy. Electrochemical studies would include steady stated polarization measurements for the ORR, using rotating ring/disk thin porous coating electrodes in liquid electrolyte and gas diffusion electrodes in H2/O2 PEMFC single cells working at 80 C.
PROJECT 2
Supervisor: Prof. Ernesto Rafael Gonzalez (ernesto@iqsc.usp.br) Summary: This project is directed to study the problems of the electro-oxidation of ethanol, trying to increase the contribution of the 12 electron mechanism giving CO2 as product. Two approaches are suggested:
Development of Pt based nanodispersed catalysts with metals like Ru, Rh, Sn, Os, W, etc. The catalysts may be bi- or trimetallic and should be synthesized by advanced methods. The physical characterization will be done with techniques like EDX, DRX, XAS (in situ), XPS, SEM, TEM, etc. The electrochemical characterization will be done with techniques like voltammetry, chronoamperometry, impedance spectroscopy, etc. and also with experiments in half cells and single fuel cells.
Study of the effect of temperature on the ethanol oxidation. This work is directed to determine the effect of temperature on the ethanol oxidation on the catalysts developed in (1) and also on massive metals. For this adequate electrolytes like phosphoric acid or ionic liquids will be used. This will be complemented with the development of suitable membranes allowing to work at high temperatures (up to 200 C) based on polymers of the polybenzimidazole family and others.
The candidates must demonstrate previous experience in electrocatalytic research of fuel cell reactions. For applications, the following documents should be sent, in pdf format, to the corresponding project supervisor and to the electronic address above mentioned.
1) Recommendation Letter;
2) Letter at which the candidate describes his experience in the research field and defines his interest in Project 1 or 2;
3) Copy of the Abstract of his PhD thesis;
4) Resume.
The dead line is February 5th 2010
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The University of Siegen is an innovative and interdisciplinary university with some 12.000 students and 1.500 employees, including 900 researchers. The University of Siegen offers an excellent study and research environment encompassing humanities and social sciences, as well as economics, natural sciences and engineering and numerous interdisciplinary research projects.
From November 2009 the following positions are open for a period of up to 5 years in the Chemistry department (Fachbereich 8 Chemie-Biologie)
1 postdoctoral research fellow position (full position, wage group 13 TV-L)
4 PhD student positions (half position, wage group 13 TV-L/2)
The terms of employment including the total duration of employment are according to German law (Wissenschaftszeitvertragsgesetz).
The successful candidates will work on the ERC founded project „Construction of a Molecular Crane Based on the Flavoprotein Dodecin“. A molecular crane shall be developed that is able to pick up and to release molecular objects through a switch of the electric potential. Besides the transport of single molecules, the development and investigation of protein modified surfaces is in the focus of research. The results will be of general interest for the construction of molecular switches, devices, and transport systems, and for the development of amperometric biosensors and biofuel cells. Main experimental techniques are atomic force microscopy (AFM), surface plasmon resonance spectroscopy (SPR), electrochemistry, quartz crystal microbalance measurements (QMB), biochemistry, and organic synthesis.
Candidates with very good or excellent grade and strong background in biochemistry, chemistry or physics are encouraged to apply. A good command of English is obligatory; further we expect the willingness to learn German. For the postdoctoral research fellow position strong experience in AFM is required. For students it will be possible to start within a master thesis.
For questions please contact Dr. Gilbert Nöll, Tel.: +49 271 740 4360, E-Mail noell@chemie.uni-siegen.de.
The University of Siegen is an equal-opportunity employer and seeks to raise the number of women involved in research and teaching. Thus, the application of adequately qualified women is encouraged. Applications from handicapped persons are encouraged.
Please send your detailed application before November 30, 2009 to Dr. Gilbert Nöll, Organische Chemie 1, Universität Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
Further Information regarding Siegen University you may find on our homepage www.uni-siegen.de.
