CENIDE Nanobiophotonics Symposium 2015

Transcription

1 Draft Proposal RTG: NANOBIOPHOTONICS CENIDE Nanobiophotonics Symposium 2015 Wednesday, March 11, 2015, 09:00 18:00 Lecture Hall R14 R02 B07, New Lecture Hall Building Campus Essen, Universitätsstraße 2, Essen Program and Further Information: due.de/cenide/nbp_symposium_2015 Contact and Registration: Dr. Tobias Teckentrup, , cenide@uni- due.de

2 CENIDE Nanobiophotonics Symposium 2015, March 11, Lecture Hall, Campus Essen, University of Duisburg-Essen, Germany, Using functionalized core-shell nanoparticles for optical passivation Mandana Jalali 1,2, Daniel Erni 1, Hamid Nadgaran 2 1 General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, and CENIDE Center for Nanointegration Duisburg-Essen, Duisburg, Germany. 2 Department of Physics, University of Shiraz, Shiraz, Iran. Plasmonic nanoparticles (p-nps) have various applications in sensing, molecular diagnostic imaging, Raman spectroscopy, and photovoltaics through both scattering and plasmonic effects. Such p-nps are chemically active or introduce non-radiative decay channels [1] for neighbouring molecules as well as a temperature rise in the host medium; hence their presence is capable to alter the performance of the overall system [2]. Adding a shell with an optimized thickness can «passivate» the p-nps without deteriorating scattering and plasmonic effects, while enabling both a reduced absorption and the inhibition of non-radiative decay channels [3]. The performance of functionalized core-shell p-nps is studied in the context of a thin-film solar cell where we introduced Ag-SiO 2 core-shells p-nps (core : 50nm; shell: 10nm) into a 200nm thick c-si active layer with a 55nm Si 3 N 4 layer on top acting as an anti-reflection coating. For the proper analysis we used the finite-element-method (FEM) based simulation platform COMSOL Multiphysics TM together with revised Mie calculations to compute the spectral response of the p-np s respective the active layer s absorption yielding reliable data to validate the impact of the functionalized core-shell p-nps on the surrounding medium. Fig.1(a) depicts the plasmon resonance at 435nm that is properly confined to the p-np s 10nm SiO 2 shell, leaving the host medium virtually unaffected. The influence of the shell on the absorption inside the p-np is shown in Fig.1(b), which results in a 58% reduction of the spectrally integrated absorption for the core-shell NP (with higher absorption in the c-si host). Fig.1.(c) displays the absorption data for the surrounding c-si material yielding lower absorption at short wavelengths (due to field localization in the shell) and an increased aggregate absorption for the nm range. Hence, optical passivation of p-nps offers control over location and strength of the absorption as well as the preservation of the plasmonic effect. Fig. 1: (a) Distribution of the electric field strength at 435nm; (b) absorption inside the Ag core without and with 10nm SiO 2 shell; c) absorption in the surrounding c-si active layer of the solar cell without and with 10nm SiO 2 shell. References [1] M. Jalali, A. Mohammadi, M. Zebarjad, Increasing effective quantum efficiency using plasmonic nanoparticles, Proc. 10 th Conf. on Condensed Matter, Shiraz, Iran (2011). [2] H. Choi, W. T. Chen, P. V. Kamat, Know thy nano neighbor. Plasmonic versus electron charging effects of metal nanoparticles in dye-sensitized solar cells,. ACS nano, 5, (2012). [3] W. L.Liu, F. C. Lin, Y. C. Yang, C. H. Huang, S. Gwo, M. H. Huang, J. S. Huang, The influence of shell thickness of Au@TiO 2 core shell nanoparticles on the plasmonic enhancement effect in dye-sensitized solar cells, Nanoscale, 17, (2013).

3 Using functionalized core shell nanoparticles for optical passivation Mandana Jalali, Daniel Erni, Hamid Nadgaran Optical passivation Chemically deactivate the p-np Localize plasmon resonance inside the shell Attenuate the mentioned non-radiative decay channels Enhance the scattering cross section Using functionalized coreshell nanoparticles for optical passivation General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, and CENIDE Center for Nanointegration Duisburg-Essen, Duisburg, Germany. Avoid temperature increase in the p-np or the surrounding medium S. Raj, P. Rai, S. M. Mahjhi, Y. T. Yu, Morphology controlled 2 core-shell nanopartilces by ascobic acid reduction, Materials Science, 25, , Mandana Jalali, Daniel Erni, Hamid Nadgaran Department of Physics, University of Shiraz, Shiraz, Iran. 4/14 Outlines Impact of shell Optical passivation why passivation? the advantages Shell effect on scattering cross section plasmon resonance On scattering cross section (SCS) Shift peaks in the SCS spectra Enhance SCS SCS would be more sensitive to changes particle absorption Case study: energy conversion active layer absorption spectrum P-NP: Plasmonic nanoparticles 2/14 5/14 Optical passivation Impact of shell Why passivation To inhibite high chemical activity Avoid the increase in the surrounding medium temperature To inhibit introducing new non-radiative decay channels 3/14 6/14

4 Using functionalized core shell nanoparticles for optical passivation Mandana Jalali, Daniel Erni, Hamid Nadgaran Impact of shell Case study Shell effect in energy conversion application Reduce recombination rate in semiconductor Let the hot electron generated inside the p-np participate in the photo-current Improve solar cell potential due to changing the Fermi levels Therefore, by proper optimization of shell parameters, p-np can be passivated 7/14 10/14 Impact of shell Case study On plasmon resonance Distinct resonance wavelength shift Strong field localization inside the shell Absorption spectrum Shell thickness and material composition are important design parameters Optimizing shell parameters through the analysis of the absorption spectrum Absorption at 435nm Absorption at 575nm Absorption at 700nm Electric field at 410nm Electric field at 435nm Electric field at 745nm Absorption at 545nm 8/14 11/14 Impact of shell Case study On particle absorption Absorption would substantially decrease Shell results in a 58% reduction of spectrally integrated absorption for the core-shell NP Absorption at 535nm 9/14 12/14

5 Using functionalized core shell nanoparticles for optical passivation Mandana Jalali, Daniel Erni, Hamid Nadgaran To Conclude Optical passivation let us decide where optical absorption should take place Thanks for your attention Questions? Handouts are available

6 CENIDE Nanobiophotonics Symposium 2015 Program Wednesday, March 11, 2015 Lecture Hall R14 R02 B07, New Lecture Hall Building Campus Essen, Universitätsstraße 2, Essen 09:00-12:00 Talks Young Academics 09:00 Welcome Prof. Dr. Sebastian Schlücker/Prof. Dr. Stephan Barcikowski, Faculty of Chemistry, CENIDE, UDE 09:15 Plasmonic gold nanoparticles as platform for biomolecules counteracting protein misfolding diseases Carmen Streich, Technical Chemistry, UDE 09:30 The Effect of CLPFFD-functionalized Hollow Gold Nanospheres on β-amyloid Fibril Formation Julie Ruff, Inorganic Chemistry and Electrochemistry, RWTH Aachen 09:45 Using functionalized core-shell nanoparticles for optical passivation Jalali Mandana, General and Theoretical Electrical Engineering, UDE 10:00 Using DNA to construct plasmonic nanostructures: an overview Dr. Barbara Sacca, Bionanotechnology, UDE 10:15 Nanoparticle-peptide conjugates as model system for in vitro bioapplications Lisa Gamrad, Technical Chemistry, UDE 10:30 Coffee Break and Poster Session - 1 -

7 11:00 Autofluorescent ultra-small silver-gold nanoparticles for cellular uptake studies Dr. Diana Kozlova, Inorganic Chemistry, UDE 11:15 Cell perturbance by nanomaterial-induced targeting of molecular machines Prof. Dr. Shirley Knauer, Molecular Biology, UDE 11:30 Analysis of Neutrophil Extracellular Trap associated proteins and structures using super resolution fluorescence microscopy Manuel Stecher, Experimental Immunology and Imaging, UDE 11:45 SERS microscopy for tissue-based cancer diagnostics Dr. Wei Xie, Physical Chemistry, UDE 12:00-13:00 Lunch Break and Poster Session 13:00-16:45 Talks 13:00 Welcome and Introduction to Nanobiophotonics Dr. Tobias Teckentrup, CENIDE, UDE Prof. Dr. Stephan Barcikowski/Prof. Dr. Sebastian Schlücker, Faculty of Chemistry, CENIDE, UDE 13:30 Penetration of Nanoparticles and Drugs into Cells and Skin Prof. Dr. Eckart Rühl, Institute of Chemistry and Biochemistry, Physical and Theoretical Chemistry, Freie Universität Berlin 14:00 Nanoagents for Spatio-Temporal Control of Molecular and Cellular Reactions Prof. Dr. Joachim Rädler, Soft Condensed Matter, Faculty of Physics, LMU Munich 14:30 Coffee Break and Poster Session 15:15 Fluorescence Microscopy Studies of Nanoparticles Interacting with Proteins and Cells Prof. Dr. Gerd Ulrich Nienhaus, Institute of Applied Physics, Karlsruhe Institute of Technology (KIT) 15:45 Structured Illumination and the Analysis of Single Molecules in Cells Prof. Dr. Rainer Heintzmann, Institute of Photonic Technology, Jena 16:15 Surface-Enhanced Raman Scattering (SERS) for the Analysis of Complex Biological Samples Prof. Dr. Janina Kneipp, Department of Chemistry, Humboldt Universität Berlin - 2 -

8 16:45-17:15 Science Slam Reinhard Remfort, German Champion Science Slam 2013, Faculty of Physics, UDE 17:15-18:00 Transport by bus to UNESCO World Culture Heritage Zeche Zollverein, Essen 18:00-20:00 Guided Tour UNESCO World Culture Heritage Zeche Zollverein, Essen 20:00 Transport by bus to campus Essen 20:00 Dinner for Invited Speakers - 3 -

9 CENIDE Nanobiophotonics Symposium UNIVERSITÄT DUISBURG-ESSEN CENIDE Nanobiophotonics Symposium 2015 March 11, 2015 CENIDE Nanobiophotonics Symposium 2015 When? Where? Wednesday, March 11, 2015, 09:00 18:00 Lecture Hall R14 R02 B07, New Lecture Hall Building Campus Essen, Universitätsstraße 2, Essen (directions ( What means Nanobiophotonics? Nano + Bio + Light Nanobiophotonics is the investigation and manipulation of biological structures or processes using light in conjunction with artificial nanostructures and/or with nanoscale resolution. Which speakers give invited talks? Prof. Dr. Rainer Heintzmann, Institute of Photonic Technology, Jena Prof. Dr. Janina Kneipp, Department of Chemistry, Humboldt Universität Berlin Prof. Dr. Gerd Ulrich Nienhaus, Institute of Applied Physics, Karlsruhe Institute of Technology (KIT) Prof. Dr. Joachim Rädler, Soft Condensed Matter, Faculty of Physics, LMU Munich Prof. Dr. Eckart Rühl, Institute of Chemistry and Biochemistry, Physical and Theoretical Chemistry, Freie Universität Berlin (all confirmed) How can you actively participate in the symposium? Young academics (Master and PhD Students, Postdocs) can submit an abstract for a contribution (short talk or a poster) for the morning session. The chairs will select appropriate young academics and will decide about the type of contribution. Please submit an English abstract as a Word document including title, authors, and short description (Arial 11 pt, maximum characters incl. blanks plus 1 figure and 3 references) by January 26, 2015 to cenide@uni-due.de (mailto:cenide@uni-due.de). The best young scientist talk and the best poster will be awarded each with 200 Euro. 1 von :54

10 CENIDE Nanobiophotonics Symposium Will the conference abstracts be published? All accepted abstracts will be published online. How can you attend the symposium? The attendance is free of charge, but limited. For registration, please send an to with your complete contact details and specify if you want to attend the cultural program in the evening (visit to world culture heritage Zeche Zollverein Essen). Registrations are handled by the first-come first-serve principle. Prelimanry Program 09:00-12:00 Talks Young Academics 09:00 Welcome Prof. Dr. Sebastian Schlücker/Prof. Dr. Stephan Barcikowski, Faculty of Chemistry, CENIDE, UDE 09:15 Young Academics Session 1 (3 Short Talks) 10:00 Coffee Break 10:15 Young Academics Session 2 (3 Short Talks) 11:00 Coffee Break 11:15 Young Academics Session 3 (3 Short Talks) 12:00-13:00 Poster Session Young Academics 12:00-13:00 Lunch Break 13:00-17:00 Talks 13:00 Welcome and Introduction tbd 13:30 Nanobiophotonics Overview Prof. Dr. Stephan Barcikowski/Prof. Dr. Sebastian Schlücker, Faculty of Chemistry, CENIDE, UDE 14:00 Coffee Break 14:15 Penetration of Nanoparticles and Drugs into Cells and Skin Prof. Dr. Eckart Rühl, Institute of Chemistry and Biochemistry, Physical and Theoretical Chemistry, Freie Universität Berlin 14:45 tbd Prof. Dr. Joachim Rädler, Soft Condensed Matter, Faculty of Physics, LMU Munich 15:15 tbd Prof. Dr. Gerd Ulrich Nienhaus, Institute of Applied Physics, Karlsruhe Institute of Technology (KIT) 15:45 Coffee Break 16:00 tbd Prof. Dr. Rainer Heintzmann, Institute of Photonic Technology, Jena 16:30 tbd Prof. Dr. Janina Kneipp, Department of Chemistry, Humboldt Universität Berlin 2 von :54

11 CENIDE Nanobiophotonics Symposium :00-17:30 Science Slam Reinhard Remfort, German Champion Science Slam 2013, Faculty of Physics, UDE 18:00-19:30 Guided Tour UNESCO World Culture Heritage Zeche Zollverein, Essen 19:30 Dinner for Invited Speakers (subject to change) (/cenide/index.php) Registration: Abstract Submission: Deadline: January 26, 2015 Flyer: Download as PDF (/imperia/md/content/cenide/nbp_flyer.pdf) Organizing Committee: Prof. Dr. Stephan Barcikowski Faculty of Chemistry, Deputy Scientific Director CENIDE, University of Duisburg-Essen Prof. Dr. Sebastian Schlücker Faculty of Chemistry, CENIDE, University of Duisburg-Essen Dr. Tobias Teckentrup Managing Director CENIDE, University of Duisburg-Essen Local Organizer and Contact: Dr. Tobias Teckentrup Managing Director CENIDE University of Duisburg-Essen NETZ Room 3.18 Carl-Benz-Str Duisburg, Germany 3 von :54

12 CENIDE Nanobiophotonics Symposium Phone: (mailto:web- Letzte Änderung: Universität Duisburg-Essen 4 von :54