Thermoelectric Modulation of Neat TiCT MXenes by Finely Regulating the Stacking of Nanosheets.

Emerging two-dimensional MXenes have been extensively studied in a wide range of fields thanks to their superior electrical and hydrophilic attributes as well as excellent chemical stability and mechanical flexibility. Among them, the ultrahigh electrical conductivity (σ) and tunable band structures of benchmark TiCT MXene demonstrate its good potential as thermoelectric (TE) materials. However, both the large variation of σ reported in the literature and the intrinsically low Seebeck coefficient (S) hinder the practical applications.

Piezoelectric-Augmented Thermoelectric Ionogels for Self-Powered Multimodal Medical Sensors.

A paradigm ionogel consisting of ionic liquid (IL) and PVDF-HFP composites is made, which inherently possesses dual-function ionic thermoelectric (iTE) and piezoelectric (PE) attributes. This study investigates an innovative "PE-enhanced iTEs" effect, wherein the ionic thermopower exhibits a 58% enhancement while the ionic conductivity arises more than 2× within a PE-induced internal electric field. By harnessing these multifaceted features, fully self-powered, multimodal sensors demonstrate their superior energy conversion capabilities, which possessed minimum sensitivities of 0.

[Multi-mode MRI-based intravenous thrombolysis with recombinant tissue plasminogen activator (rtPA) reduces hemorrhagic transformation in ischemic stroke patients].

Objective: To compare the safety of intravenous thrombolytic therapy with recombinant tissue plasminogen activator (rtPA) in ischemic patients under the guidance of CT and multi-mode MRI.

Methods: The clinical, laboratory, and radiologic data from 113 consecutive hyperacute ischemic patients who received intravenous rtPA therapy from June 2009 to October 2011 was retrospectively reviewed. The rate of hemorrhagic transformation (HT) and the clinical outcome between CT and multi-mode MRI was compared.