USING MICROCONTACT PRINTING TO FABRICATE MICROCOILS ON CAPILLARIES FOR HIGH-RESOLUTION PROTON NUCLEAR-MAGNETIC-RESONANCE ON NANOLITER VOLUMES

This letter describes a method for producing conducting microcoils for high resolution proton nuclear magnetic resonance (H-1-NMR) spectrosc opy on nanoliter volumes. This technique uses microcontact printing an d electroplating to form coils on microcapillaries. Nuclear magnetic r esonance spectra collected using these microcoils, have linewidths les s than 1 Hz for model compounds and a limit of detection (signal-to-no ise ratio=3) for ethylbenzene of 2.6 nmol in 13 min. (C) 1997 American Institute of Physics.