Becton Dickinson and Company Limited

Ling Wang

Eric P Dixon

Yutao Chen

John Joseph Harrington

Shannon Dillmore

Nikhil Rao

Methods and compositions for extracting nucleic acids such as microRNAs (miRNAs) from biological samples are provided. Aspects of the methods include contacting a biological sample with proteinase K followed by contact with ferric oxide particles under acidic conditions to induce binding between the ferric oxide particles and nucleic acids (e.g., miRNAs) of the sample. In some cases, the ferric oxide particles are provided as part of a dissolvable film, which releases the ferric oxide particles upon solvation. In some embodiments, after nucleic acids bind to the ferric oxide particles, the particles are magnetically separated from the sample and are contacted with an alkaline elution buffer to release the nucleic acids.

Methods and compositions for extracting nucleic acids using ferric oxide particles

Methods for processing whole blood samples are provided. Aspects of the methods include depleting leukocytes from a whole blood sample to produce a leukocyte depleted sample, and then lysing red blood cells (RBCs) in the resultant leukocyte depleted sample to produce a leukocyte/RBC depleted sample. Also provided are compositions and kits for practicing embodiments of the invention. The methods and compositions find use in a variety of different applications, including the detection of circulating tumor cells (CTCs).

Growing community of inventors

Cary, NC, United States of America

Ling Wang