University of Ioannina

4 ARTICLES PUBLISHED IN JoVE

Biology

Indacenodithienothiophene-Based Ternary Organic Solar Cells: Concept, Devices and Optoelectronic Analysis

Nicola Gasparini¹, Amaranda García-Rodríguez², Athanasios Katsouras³, Apostolos Avgeropoulos³, Georgia Pagona^4,5, Vasilis G. Gregoriou^4,5, Christos L. Chochos^3,4, Sybille Allard², Ulrich Scherf², Christoph J. Brabec^1,6, Tayebeh Ameri¹

¹Institute of Materials for Electronics and Energy Technology (I-MEET), Friedrich-Alexander-University Erlangen-Nuremberg, ²Macromolecular Chemistry Group (buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal, ³Department of Materials Science Engineering, University of Ioannina, ⁴Advent Technologies SA, ⁵National Hellenic Research Foundation (NHRF), ⁶Bavarian Center for Applied Energy Research (ZAE Bayern)

In this study, in addition to the synthesis of a novel polymer, we fully characterize a ternary bulk-heterojunction solar cell, with a power conversion efficiency exceeding 4.6%, with the complementary use of optical and electrical techniques.

Developmental Biology

Dissection, Culture and Analysis of Primary Cranial Neural Crest Cells from Mouse for the Study of Neural Crest Cell Delamination and Migration

Sandra Guadalupe Gonzalez Malagon^*1,2, Lisa Dobson^*1,3, Anna M Lopez Muñoz¹, Marcus Dawson¹, William Barrell^1,3, Petros Marangos^2,4, Matthias Krause³, Karen J Liu¹

¹Centre for Craniofacial and Regenerative Biology, King's College London, ²Institute of Molecular Biology and Biotechnology, FORTH, Department of Biomedical Research, University of Ioannina, ³Randall Centre of Cell & Molecular Biophysics, King's College London, ⁴Department of Biological Applications and Technology, University of Ioannina

This protocol describes the dissection and culture of cranial neural crest cells from mouse models, primarily for the study of cell migration. We describe the live imaging techniques used and the analysis of speed and cell shape changes.

Neuroscience

Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Imaging Evaluation in Patients with Foot Paresis

Mark P. Ottensmeyer^1,2, Sabrina Elbach^3,4, Loukas Astrakas^3,5, Shasha Li^2,3,4, A. Aria Tzika^2,3,4

¹Medical Device & Simulation Laboratory, Department of Radiology, Massachusetts General Hospital, ²Harvard Medical School, Harvard University, ³NMR Surgical Laboratory, Department of Surgery, Shriners Children’s Boston, Massachusetts General Hospital, ⁴Athinoula A. Martinos Center of Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, ⁵Medical Physics Laboratory, Faculty of Medicine, University of Ioannina

Chronic stroke patients' insured rehabilitation is generally time limited. Imaging-based study of brain activity from walking-related motor tasks can lead to establishing biomarkers to measure improved outcomes and justify extending tailored therapy. A novel, magnetic resonance-compatible, variable-resistance foot motion device and a protocol for use during functional magnetic resonance imaging are presented.

Developmental Biology

Detection of DNA Double-Stranded Breaks in Mouse Oocytes

Chrysoula Zorzompokou^1,2, Marios Ipeirotis^1,2, Marios Kaisar Martzoukos¹, Petros Marangos^1,2

¹Department of Biological Applications and Technology, University of Ioannina, ²Biomedical Research Institute, Foundation for Research and Technology

Maintaining oocyte genome integrity is necessary to ensure the genetic fidelity in the resulting embryo. Here, we present an accurate protocol for detecting DNA double-strand breaks in mammalian female germ cells.