Qiongdan Zhang

An "on-off-on" fluorescent probe based on nitrogen-doped carbon quantum dots for the selective detection of glutathione.

Glutathione (GSH), an important biological sulfane sulfur compound, plays an integral role in a wide array of biological processes. Consequently, advancing highly sensitive and selective fluorescence-based analytical methods is crucial for research. This study successfully synthesized highly luminescent nitrogen-doped...

Ratiometric Quantum Dot Nanosensor for Reliable Dual Detection of Silver Ions and L-Cysteine in Biological Matrices.

An "off-on" fluorescent aptasensor based on FRET and magnetic beads for detection of circulating tumor cells in lung cancer.

A novel "off-on" fluorescent aptasensor based on fluorescence resonance energy transfer (FRET) and streptavidin-modified magnetic beads (MBs) for the sensitive and specific detection of A549 CTCs in lung cancer.

A ratiometric fluorescence nanosensor based on CdTe QDs for APE1 detection in breast cancer cell lysates.

A ratiometric fluorescence nanosensor using dual-emission CdTe quantum dots (R-QDs) for sensitive detection of APE1, a DNA repair enzyme and cancer biomarker, successfully detected APE1 in breast cancer cell lysates with good linearity and recovery rates.