Development of a fluorescent sensor for illicit date rape drug GHB

Area of Science:

• Analytical Chemistry
• Forensic Science
• Chemical Sensing

Background:

• Date rape drug gamma-hydroxybutyrate (GHB) poses a significant public health risk.
• Existing detection methods for GHB can be time-consuming and complex.
• Development of rapid, sensitive detection tools is crucial for safety.

Purpose of the Study:

• To develop the first fluorescent sensor for the detection of gamma-hydroxybutyrate (GHB).
• To investigate the sensing mechanism and applicability in real-world samples.

Main Methods:

• Synthesis and characterization of a novel fluorescent sensor molecule (GHB Orange).
• Spectroscopic analysis to study the interaction between GHB Orange and GHB.
• Testing the sensor's performance in various beverage matrices.

Main Results:

• GHB Orange demonstrated a specific fluorescence quenching response upon binding with GHB.
• The sensor successfully detected GHB in different drinks, indicating practical applicability.
• The interaction mechanism was identified as intramolecular charge transfer facilitated by hydrogen bonding.

Conclusions:

• GHB Orange represents a significant advancement in the rapid detection of GHB.
• This sensor offers a promising tool for preventing GHB-facilitated sexual assaults.
• The elucidated mechanism provides insights for designing future chemosensors.