Unconventional electronic phase transition in SnBiTe: role of anomalous thermal expansion.

We propose SnBiTeto be a novel topological quantum material exhibiting temperature () mediated transitions between rich electronic phases. Our combined theoretical and experimental results suggest that SnBiTegoes from a low-semimetallic phase to a high-(room temperature) insulating phase via an intermediate metallic phase. Single crystals of SnBiTeare characterized by various experimental probes including synchrotron based x-ray diffraction, magnetoresistance, Hall effect, Seebeck coefficient and magnetization.

Interplay between positive magnetoresistance and thermoelectric properties by tuning carrier concentration in SbSnTe(⩽ 0.05) crystals.

We report transport properties of SbSnTe(⩽ 0.05) single crystals, where the tuning of the charge carrier densities via Sn doping significantly improves the magnetoresistance (MR) and the thermoelectric (TE) properties. The MR increases significantly at 2 K for= 0.

Magnetic norbornene polymer as multiresponsive nanocarrier for site specific cancer therapy.

A site-specific, stimuli-responsive nanocarrier has been synthesized by conjugating folate, magnetic particles and doxorubicin to the backbone of norbornene polymer. Monomers, namely, cis-5-norbornene-6-(diethoxyphosphoryl)hexanote (mono 1), norbornene grafted poly(ethyleneglycol)-folate (mono 2), and norbornene derived doxorubicin (mono 3) are carefully designed to demonstrate the smart nanorcarrier capabilities. The synthesis and complete characterization of all three monomers are elaborately discussed.