- Invited speaker in 13th IEEE International Conference on Bio-Informatics and Bio-Engineering, November 10-13, 2013 Chania, Greece, Satellite Event on Innovation & Entrepreneurship
- "Digital image processing/analysis tools in Light Microscopy: From the basics and beyond" Pasteur Institute in June 10-17, 2013.
- DISCHROM EU Technology Transfer Workshop, Athens October 6, 2011
- IEEE Greece Section ‘i-MSL: Meet a Suc¬cessful Leader’ November 19, 2010
- "Molecular colposcopy" Regional IALMS conference Photomedicine 2009: "diagnosis and treatment" 2nd BALM Congress, Vilnus 2009.
- "Interpretation and modeling of the AW effect enables the in vivo assessment functional and structural characteristics of the abnormal cervical epithelium in DySIS coploscopy.", presented at Annual Scientific Meeting of the British Society For Colposcopy & Cervical Pathology, 10-11 April, ICC Birmingham, 2008
- "In Vivo Optical Molecular Imaging for Optical Biopsy: Technology Development and Clinical Implementation", presented at the 6th European Symposium on Biomedical Engineering, Chania, Crete, 19-21 June 2008
- "Novel Optical Imaging Technologies for in vivo Diagnosis and Screening", presented at the IEEE International Workshop on Imaging Systems and Techniques (IST 2008), September 10-11, Chania, Island of Crete, Greece, 2008
- "Hyper-Spectral imaging in detection of precancerous lesions of skin", presented at the 1st Symposium of Scientific Dermatology, October 10-11, Heraklion, Crete, Greece, 2008
- "Dymanic Spectral Imaging: Technology and Application in early Detection of Cervical pre-cancers" Symposium on Computer Applications in Women's Health Care New York City, NY, 2005
- "In vivo, early detection, quantitative grading and mapping of cervical cancers and precancers" Optical Society of America (OSA)-meeting in Biomedical Optical Spectroscopy and Diagnostics (BOSD) April 7-10, 2002, Miami
- "The Potential of Spectral Imaging in the Non-Invasive Diagnostics of Tissue Cancers and Precancers" in SPIE-3rd International Conference in Advanced Optical Materials and Devices 19 - 22 August, 2002 Riga, Latvia
- "Spectral imaging technology for the in vivo diagnostics of cervical precancers" in 2nd European Conference in Gynaecologic Oncology Rhodes, Greece, 2001
- "Diagnostic Imaging in ENT" Round table in the Joint -Meeting of American Academy of Otolaryngology - Head and Neck Surgery (AAO-HNS) and Hellenic Society of Otorhinolaryngology, Athens 2001
- "Multi- and Hyper- Spectral Imaging in tissue Optical Biopsy" in the International conf. on Medical and Diagnostic Techniques & Procedures Madras-INDIA Dec. 1999
- "Spectral, Spatial and Temporal analysis of tissues: Potential for in-vivo diagnostics" in Light for Life conf., also chairperson of the session: Diagnosis and Surgery, Mexico, July 1999
- "Novel Optical Imaging Methods for the Scientific Analysis and Documentation of Human Tissues and Artworks" in OWLS conference: "Βiomedicine and Culture in the Era of Modern Optics and Lasers" Heraklion Crete, Greece, 1998
- "Novel Optical Diagnostic Techniques and methods in Medicine" in 1st world congress of ORL Allergy Endoscopy and Laser Surgery, Athens, Greece, 1998
- "Laser Based Techniques in Chemical and Structural Diagnosis of Painted Artworks" Eastern analytical symposium , New Jersey, USA, 1997
- "Imaging Spectroscopy In Biomedicine", International Laser Congress 1996, Athens, Greece