the measuring the electrical nature

noise ratio of graphene fet http://www.xrdcarbon.icon6.com/blog/difference-between-synthetic-gr... integrated https://www.anoox.com/news/show_selected_article.php?article=69437 chips, on the chip surface culture, chicken embryo heart cells.The study found that graphene and form stable contact between individual cardiomyocytes, realized the high sensitivity of cell electrophysiological signals, non-invasive test.And, more importantly, the study for the first time realized by gate voltage bias caused by the same graphene devices of n and p type working mode transformation, and in the process of cellular electrophysiology graphene conductance signal of the opposite polarity, fully proved that the measuring the electrical nature of the biological signal.In addition, the researchers further compares the different size of graphene biosensor, graphene and silicon nanowires integrated sensor system to detect the same cardiac cells, biological sensor array http://www.lampworketc.com/forums/showthread.php?p=4780732#post4780732 for the development of high integration provides a theoretical guidance and experimental basis.The work has established the one dimensional and two dimensional nanomaterials and cell combination of unique research system, will bring new opportunities for the research of bioelectronics.Relevant results have been published in the March 2010 (http://pubs.acs.org/doi/pdf/10.1021/nl1002608), Nano Letters on the above research work for special funds of the Chinese academy of sciences, and the national natural science foundation support on the project.

When the size of the particles into the nanoscale, nanomaterials have macro block material don't have strange or unusual physical and chemical properties, generally known as the small size effect.Such as semiconductor quantum dot with the size of the change and present a http://www.lookuppage.com/users/xrdcarbon/ different color.Now determine accurately the position of the quantum dots each constituent atoms is also very difficult, so also can't quantitative build relations between the structure and properties of quantum dots.In recent years, researchers have found that some metal two-dimensional membrane can accurately control the thickness of precision single atomic layer can be achieved.They are also found in the morphology accurately controlled membrane, a series of interesting properties, such as superconducting temperature, surface chemical reaction characteristics of the oscillation http://chinagraphiteprice.blog.com/2015/08/10/kinds-of-graphite-mac... phenomenon in a single atomic layer thickness change.As a result of these metal film can only exist in low temperature stability, http://xrdcarbon.format.com/ greatly limits its wide https://graphitematerialsuppliers.wordpress.com/2015/08/14/the-appl... application prospect.Graphene is 2004 experiments have established that can exist at room temperature above stability of two-dimensional ideal material of single atomic layer thickness between layer and layer to weak van der Waals forces.Generally believe that the weak force on its nature will not be huge, but the experiment was amazed to find that: single and double quantum hall between graphene platform fill factor is different, showing a bizarre quantum hall effect.So, whether the other properties of the graphene will change as its thickness (layers) and presents the different?Sun Lianfeng national center for nanoscale science researchers and others found that when go