Studies on the characterisation of thiophene substituted 1,3,4-oxadiazole derivative for the highly selective and sensitive detection of picric acid

Thippeswamy, M.S.; Naik, L. R.; Maridevarmath, C.V.; Savanur, Hemantkumar M.; Malimath, G.H.

doi:10.1016/j.molstruc.2022.133274

Cited by 9 publications

(2 citation statements)

References 53 publications

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“…Using the intensity data at 435 nm from the titration profile, an association constant for the adduct formation between IV and TKX 50 is evaluated using Benesi-Hildebrand (B-H) plot. 10 The evaluated association constant is found to be 2.41x 10 3 M -1 (Fig. 2D).…”

Section: Chemical Sensing Studiesmentioning

confidence: 92%

Receptor for Specific Detection of TKX 50 and Integration of the Switch On Fluorescence Responses into an IoT-Based Smart Device

Bej,

Dutta,

Salim Pasha

et al. 2024

Preprint

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TKX-50 is one of the new generatation secondary explosives that has been introduced recently in the modern weapon system due to its low impact/friction sensitivity, and high thermal stability, density, and detonation velocity. In response to the growing concerns for the illegitimate use of certain explosives by various organized agencies, there is an urgent need for effective recognition and quantification of such explosives for efficient security screening, homeland security and human safety. However, it is imperative that such detection process is free from scope of any false positive or false negative response. Herein, we report a new polymeric receptor derived from hydroxyl-functionalized tetra phenyl ethylene (TPE-OH) for specific detection of TKX 50 by monitoring its fluorescence-ON responses on binding to TKX 50. A details spectroscopic (steady-state and time resolved fluorescence) studies confirm that the fluorescence ‘ON’ response is attributed to an interrupted non-radiative deactivation process for TKX-50 bound receptor IV (Ka = 2.4 x 103 M-1), which otherwise is operation in receptor IV. A control monomeric derivative of TPE-OH is also synthesized and is used for our studies to further corroborate our proposition. Furthermore, a smart and user-friendly IoT-based device has been developed, allowing the integration of optical responses into a digital output. This light weight portable device enables IoT based remote detection and appropriate for surveillance application. To the best of our knowledge, example of such smart integration of the optical responses to an user datagram protocol (UDP)-based Wi-Fi communication and data processing for remote monitoring of TKX 50 is scarce and in the contemporary literature.

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Section: Chemical Sensing Studiesmentioning

confidence: 92%

Receptor for Specific Detection of TKX 50 and Integration of the Switch On Fluorescence Responses into an IoT-Based Smart Device

Bej,

Dutta,

Salim Pasha

et al. 2024

Preprint

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show abstract

“…The pursuit of enhanced charge transfer and separation emphasizes the significance of a small chemical hardness (η) value. Notably, from Further exploration into the stabilization energies of the molecular structures, measured by the electrophilicity index (ω), reveals that the designed molecule P6 exhibits the highest electron-accepting power and stabilization energy among its counterparts, an attribute attributed to the presence of chlorobenzene [24]. This comprehensive analysis sheds light on the intricate molecular landscape and paves the way for further exploration of these compounds in diverse applications.…”

Section: Computational Photo Physical Studiesmentioning

confidence: 93%

New Green Chemistry Approach of Synthesis of Aryl Substituted Dihydro Pyrimidone Derivatives Using Citrus Extract for Antibacterial and Antifungal Activities

Al-Hazmi

2024

Pol. J. Environ. Stud.

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Bifunctional Luminescent Rare Earth Metal–Organic Frameworks for Highly Sensing Fe3+ Ions and TNP

Rong,

Li,

Wang

et al. 2024

J Inorg Organomet Polym

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Studies on the characterisation of thiophene substituted 1,3,4-oxadiazole derivative for the highly selective and sensitive detection of picric acid

Cited by 9 publications

References 53 publications

Receptor for Specific Detection of TKX 50 and Integration of the Switch On Fluorescence Responses into an IoT-Based Smart Device

Receptor for Specific Detection of TKX 50 and Integration of the Switch On Fluorescence Responses into an IoT-Based Smart Device

New Green Chemistry Approach of Synthesis of Aryl Substituted Dihydro Pyrimidone Derivatives Using Citrus Extract for Antibacterial and Antifungal Activities

Bifunctional Luminescent Rare Earth Metal–Organic Frameworks for Highly Sensing Fe3+ Ions and TNP

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