On the development of equivalent medium for active implantable device radiofrequency safety assessment.

Purpose: To develop the equivalent medium theorem that can be used to perform accurate evaluation of implantable device safety under MRI exposure.

Methods: Numerical methods were used to determine the equivalent medium parameters along clinically relevant trajectories inside a human body model. Additionally, numerical and experimental investigations were performed using both a computational human body model and an inhomogeneous phantom to demonstrate the effectiveness of the method.

Moisture-triggered physically transient electronics.

Physically transient electronics, a form of electronics that can physically disappear in a controllable manner, is very promising for emerging applications. Most of the transient processes reported so far only occur in aqueous solutions or biofluids, offering limited control over the triggering and degradation processes. We report novel moisture-triggered physically transient electronics, which exempt the needs of resorption solutions and can completely disappear within well-controlled time frames.

Determination of several sugars in serum by high-performance anion-exchange chromatography with pulsed amperometric detection.

In this paper, a sensitive, simple and direct method for simultaneous determination of glucose, ribose, isomaltose and maltose in serum sample by high-performance anion-exchange chromatography coupled with integrated pulsed amperometric detection was developed. The four target analytes were easily and completely separated on an anion-exchange column at a flow-rate of 0.25 mL/min by binary step gradient elution in about 16 min and the two eluents were deionized water and 500 mM sodium hydroxide, respectively.