text:  Sample 2_Time Point 1d Dose 162ug [set 3] Time Point 1d Dose 162ug [set 3] strain: C57BL/6; gender: female; age: 5-7 weeks; exposed to: rutile hydrophobic TiO2NPs of 20 nm diameter; dosage: 162ug; time point: 1d post-exposure; tissue: lung