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What is Widefield Microscopy?

Widefield microscopy refers to a basic sample illumination principle in microscopy. Since widefield microscopy permanently illuminates the whole sample, it can be distinguished from confocal microscopy where only one single focal spot is illuminated and recorded at a time. Typically, widefield microscopy utilizes light sources such as halogen, metal halide lamps or LED for sample illumination. Detection is performed through oculars or with the help of a digital camera. Several contrast methods increase widefield microscopy capabilities, starting from Phase Contrast through to Differential Interference Contrast (DIC) or fluorescence, to name but a few. Computer based deconvolution can be applied to increase widefield fluorescence image quality and enable 3D image reconstruction. Moreover, TIRF and GSDIM super-resolution microscopy can be assigned to widefield microscopy.

Useful Links

Communities and Web Sources

www.researchgate.net/Social network for scientists

www.lsoft.com/scripts/wl.exe?SL1=CONFOCALMICROSCOPY&H=LISTS.UMN.EDUConfocal Microscopy Mailing List, University of Minnesota

www.ibiology.org/Teaching tools, video lectures on biology and microscopy

www.ibiology.org/Teaching tools, video lectures on biology and microscopy

bitesizebio.comOnline magazine and community for molecular and cell biology researchers

www.somersault1824.comResource for high-end scientific illustrations, images and animations

Search Engines and Data Bases

www.cellimagelibrary.orgPublic resource database of images, videos, and animations of cells

harvester.fzk.de/harvesterBioinformatic meta search engine for genes and proteins

www.gopubmed.comSearch interface for pubmed

en.wikipedia.org/wiki/List_of_academic_databases_and_search_enginesList of academic databases and search engines

scholar.google.comBeta of Google's search engine for scientific article abstracts

Journals

www.doaj.org/Directory of open access journals

emboj.embopress.org/The EMBO Journal

www.lifescied.orgCBE-Life Sciences Education – an ASCB online journal

www.sciencemag.org/Science

www.nature.com/Nature

www.cell.com/Biweekly publication of exceptional research articles

jcs.biologists.org/Journal of Cell Science

dev.biologists.org/Development

jeb.biologists.org/The Journal of Experimental Biology

dmm.biologists.org/DMM Disease Models & Mechanisms

www.biotechniques.com/International Journal of Life Science Methods

www.opticsinfobase.org/Collection of Journals and Proceedings in Optics and Photonics

spie.org/x576.xmlSPIE - peer-reviewed journals on applied research in optics and photonics

onlinelibrary.wiley.com/journal/10.1002/(ISSN)1864-0648Journal of Biophotonics

www.plosone.org/home.actionInternational, peer-reviewed, open-access, online publication

rspb.royalsocietypublishing.org/Proceedings B - the Royal Society's biological research journal

www.microscopy-analysis.com/International Journal for microscopists

Organizations

www.microscopy.org/Microscopy Society of America

www.eurmicsoc.org/European Microscopy Society

www.rms.org.uk/Royal Microscopical Society

www.ascb.org/ASCB American Society of Cell Biology

www.biologists.com/cob_activities.htmlthe company of biologists

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