Pluton Biosciences launched today a new investment offering through local crowdfunding platform Nvsted. St. Louis-based Pluton Biosciences launched today a new investment offering through local crowdfunding platform Nvsted. Pluton is also seeking to raise additional funds from accredited investors through a separate Regulation D offering. Together, the offerings will propel the biosciences startup beyond its first major discovery toward its goal of becoming a global leader in assay-based…