Ashland Plastics Research and Consulting 200 Homer Ave MatTek produces ready-to-use, normal, human cell-derived, fully differentiated, 3-D, organotypic in vitro TISSUE equivalents with unsurpassed, guaranteed long-term reproducibility. These TISSUES are proven animal test alternatives. Ashland MA Plastics Research and Consulting Mat Tek Corp www.mattek.com human tissue 3-D organotypic equivalent ready-to-use differentiated in vitro animal alternative human tissue 3-D organotypic equivalent ready-to-use differentiated in vitro animal alternative Business Reviews Mat Tek Corp Testimonials