** Shares of Nexsen NXN.AX rise as much as 18.9% to A$0.22, their highest level since April 27
** Nanobiotech firm signs binding term sheet with GHK Hospitals, a unit of Malaysia's IHH Healthcare IHHH.KL
** Collaboration for clinical validation, data generation and commercialisation of co's point-of-care diagnostic platform in Asia
** More than 981,600 shares change hands, 2.2 times the 30-day average
** Stock up 34.4% YTD, including the day's moves
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))