Sentence examples for material were negative from inspiring English sources

Cultures of the purulent material were negative.

Cultures of prosthetic material were negative.

However, immunostains for fibronectin and collagen IV, the classical components of adult gland extracellular material, were negative – although ~20% of the mammospheres stained positive for laminin.

Fluorescent-antibody test results of cell culture material were negative for adenoviruses, cytomegalovirus, varicella-zoster virus, herpes simplex virus, and enteroviruses, and polymerase chain reaction (PCR) assays for enteroviruses were negative.

Yet, in this case, both the prices of waste and secondary material are negative.

Diluted contrast material is advisable to use in suspected cases where CS study with undiluted contrast material is negative.

In one case the CT scan (without contrast material) was negative, while the MR image showed an abnormal focus.

Moreover, PCR could detect Leishmania DNA in bone marrow aspirates in 66.7% of suspected VL patients, while microscopy of the same material was negative [ 32].

Diluted contrast medium may pass more easily through fistulas with a narrow lumen [ 12, 14], thereby rendering a diagnosis possible in suspected cases where CS study with undiluted contrast material is negative.

Negative samples and all test materials were negative for microbial growth.

All non-spiked feed materials were negative for Salmonella with the NMKL71 method, which was also later confirmed by the EN ISO 6579 2002 and MSRV methods.