
Archer Materials AXE.AX rises 8% to A$0.27; marks biggest intraday pct gain since April 11
Semiconductor firm signs agreement with UK graphene-based electronics company Paragraf to advance development of Archer's biochip potassium ion sensor to test for chronic kidney disease
Says deal to be in two stages at total estimated cost of A$450,000 ($288,810)
About 526,535 shares traded vs the 30-day avg
Stock trims YTD losses to 53.5%
($1 = A$1.5581)