A rare case of severe Ebstein's anomaly and hepatoblastoma in a neonate.

Primary liver tumours in neonates with single-ventricle palliation are exceedingly rare. We present the first reported case of neonatal hepatoblastoma with severe Ebstein's anomaly following Starnes procedure. The patient's postoperative course highlights the challenges and complications in simultaneous management of these diagnoses. Transition from shunted single-ventricle physiology to bidirectional cavopulmonary connection improved end-organ function, permitting more aggressive hepatic malignancy treatment.

Electrokinetic Active Particles for Motion-Based Biomolecule Detection.

Detection of biomolecules is essential for patient diagnosis, disease management, and numerous other applications. Recently, nano- and microparticle-based detection has been explored for improving traditional assays by reducing required sample volumes and assay times as well as enhancing tunability. Among these approaches, active particle-based assays that couple particle motion to biomolecule concentration expand assay accessibility through simplified signal outputs. However, most of these approaches require secondary labeling, which complicates workflows and introduces additional points of error. Here, we show a proof-of-concept for a label-free, motion-based biomolecule detection system using electrokinetic active particles. We prepare induced-charge electrophoretic microsensors (ICEMs) for the capture of two model biomolecules, streptavidin and ovalbumin, and show that the specific capture of the biomolecules leads to direct signal transduction through ICEM speed suppression at concentrations as low as 0.1 nM. This work lays the foundation for a new paradigm of rapid, simple, and label-free biomolecule detection using active particles.