Tosoh Bioscience says it will complement its resins business through the addition of continuous chromatography firm Semba Biosciences. The deal, which closed earlier this month, saw Pennsylvania-based Tosoh add all Semba’s staff and assets for an undisclosed fee. The acquisition will boost the firm’s downstream bioproduction portfolio, made up of chromatography resins, with the addition of Semba’s simulated moving bed (SMB) chromatography systems (see text box below). “Coupled with Semba’s revolutionary multi-column chromatography technology we have found a perfect complement…