Background:Ammonium nitrate(AN)is widely used in improvised explosive devices(IEDs)due to its accessibility and low cost.The surge in AN-based explosives in recent terror incidents across India necessitates the develo...Background:Ammonium nitrate(AN)is widely used in improvised explosive devices(IEDs)due to its accessibility and low cost.The surge in AN-based explosives in recent terror incidents across India necessitates the development of a reliable and rapid detection system,especially for on-site forensic investigations.Objective:To design and evaluate a supramolecular sensor based on a C cinnamaldehyde pyrogallol derivative that selectively detects ammonium nitrate through host-vip interaction,with potential application in counter-terrorism and forensic science.Methods:A novel supramolecular sensor was synthesised and characterised.Ultraviolet-visible(UV-Vis)spectroscopy and fluorescence spectroscopy were employed to monitor the interaction between AN and the sensor.Spectral shifts and intensity changes were analysed to confirm binding efficiency and selectivity.Results:The sensor exhibited potent and selective host-vip interactions with ammonium nitrate,producing a marked fluorescence enhancement upon binding.No significant interference was observed from other common nitrate-containing compounds.The sensor demonstrated high sensitivity,allowing detection of AN at trace concentrations.Conclusion:The developed supramolecular sensor provides a rapid,sensitive,and selective method for detecting ammonium nitrate.It holds promise for field-deployable forensic tools in explosive trace detection(ETD)and counter-terrorism applications.展开更多
文摘Background:Ammonium nitrate(AN)is widely used in improvised explosive devices(IEDs)due to its accessibility and low cost.The surge in AN-based explosives in recent terror incidents across India necessitates the development of a reliable and rapid detection system,especially for on-site forensic investigations.Objective:To design and evaluate a supramolecular sensor based on a C cinnamaldehyde pyrogallol derivative that selectively detects ammonium nitrate through host-vip interaction,with potential application in counter-terrorism and forensic science.Methods:A novel supramolecular sensor was synthesised and characterised.Ultraviolet-visible(UV-Vis)spectroscopy and fluorescence spectroscopy were employed to monitor the interaction between AN and the sensor.Spectral shifts and intensity changes were analysed to confirm binding efficiency and selectivity.Results:The sensor exhibited potent and selective host-vip interactions with ammonium nitrate,producing a marked fluorescence enhancement upon binding.No significant interference was observed from other common nitrate-containing compounds.The sensor demonstrated high sensitivity,allowing detection of AN at trace concentrations.Conclusion:The developed supramolecular sensor provides a rapid,sensitive,and selective method for detecting ammonium nitrate.It holds promise for field-deployable forensic tools in explosive trace detection(ETD)and counter-terrorism applications.
