Coupon model for novel rotating-disc rheometry method

The model for the coupons was designed in SolidWorks (Dassault Systèmes); refer to supplementary file 1. Coupons were 3D printed using a Prime 30 PolyJet 3D printer (Objet, Stratasys) using RGD720 photopolymer for the printing material (Stratasys). The coupon was printed at a resolution of 0.0008 inches. The coupon surface was sanded used P300 sandpaper to create a rougher surface for bacteria to attach. Prior to inoculating, coupons were sterilized in 70% ethanol.

该测试试样（coupon）的模型采用SolidWorks（达索系统）设计，相关细节请参阅补充文件1。测试试样采用Prime 30 PolyJet型3D打印机（Objet，Stratasys公司）进行3D打印，打印材料为Stratasys公司的RGD720光固化树脂（photopolymer）。该试样的打印分辨率为0.0008英寸。为使试样表面更粗糙以利于细菌附着，采用P300砂纸对试样表面进行打磨处理。接种前，将测试试样置于70%乙醇溶液中完成灭菌处理。