TY - JOUR AU - Kristian Helmerson AU - R Kishore AU - W Phillips AU - H Weetall C2 - Clinical Chemistry DA - 1997-02-01 00:02:00 LA - en M1 - 43 PB - Clinical Chemistry PY - 1997 TI - Optical Tweezers-Based Immunosensor Detects Femtomolar Concentrations of Antigens ER -