# ADDIMUS BIO ADDIMUS BIO develops automation add-ons for 3D cell culture liquid handling and bulk-dispenser workflows. The company focuses on practical laboratory problems such as spheroid and organoid medium exchange, low-dead-volume dispensing, cooled ECM hydrogel and Matrigel dispensing, and automated selection of multiple reagent sources. ## Products - WASH+: automated medium exchange for spheroids, organoids, tumoroids, microtissues, and other 3D cell cultures. - REAGENT+: low-dead-volume dispensing cassette for Thermo Scientific Multidrop Combi workflows. - COLD+: passive temperature-controlled dispensing solution for Matrigel, Geltrex, Cultrex, and other ECM hydrogels. - SAMPLER+: autosampler accessory for automated selection and switching of multiple reagent sources for bulk-dispenser workflows. ## Key pages - https://addimus.bio/en - https://addimus.bio/en/products/wash-plus - https://addimus.bio/en/products/reagent-plus - https://addimus.bio/en/products/cold-plus - https://addimus.bio/en/products/sampler-plus - https://addimus.bio/en/blog - https://addimus.bio/en/about - https://addimus.bio/en/contact ## Key blog articles - https://addimus.bio/en/blog/manual-medium-exchange-spheroids-organoids - https://addimus.bio/en/blog/spheroid-medium-exchange-without-losing-spheroids - https://addimus.bio/en/blog/how-to-dispense-matrigel-domes-96-well-plates - https://addimus.bio/en/blog/temperature-control-matrigel-geltrex-cultrex-dispensing ## Evidence and resources - https://addimus.bio/en/publications/matrigel-poster ## Core topics - 3D cell culture liquid handling - spheroid medium exchange - organoid medium exchange - automated medium exchange - gentle aspiration and refill - residual volume control - Matrigel dome dispensing - Geltrex dispensing - Cultrex dispensing - ECM hydrogel dispensing - temperature-controlled dispensing - low-dead-volume dispensing - Thermo Scientific Multidrop Combi workflows - INTEGRA WELLJET workflows - bulk-dispenser automation - reagent switching