Validity, Reliability, and Measurement Invariance of the Diabetes Stress Questionnaire-Short Form.

Objective: The purpose of this study was to develop a short form of the Diabetes Stress Questionnaire (DSQ) with adequate psychometric properties (i.e., internal consistency, convergent, criterion, discriminant validity, construct validity, and measurement invariance).

Dielectrophoretic trapping of nanoparticles with an electrokinetic nanoprobe.

A high aspect ratio 3D electrokinetic nanoprobe is used to trap polystyrene particles (200 nm), gold nanoshells (120 nm), and gold nanoparticles (mean diameter 35 nm) at low voltages (<1 V(rms)). The nanoprobe is fabricated using room temperature self-assembly methods, without the need for nanoresolution lithography. The nanoprobe (150-500 nm in diameter, 2-150 μm in length) is mounted on the end of a glass micropipette, enabling user-specified positioning.