scholarly journals Factors Influencing Triacetone Triperoxide (TATP) and Diacetone Diperoxide (DADP) Formation: Part I

2013 ◽  
Vol 38 (2) ◽  
pp. 244-254 ◽  
Author(s):  
Jimmie C. Oxley ◽  
James L. Smith ◽  
Patrick R. Bowden ◽  
Ryan C. Rettinger
Keyword(s):  
Triacetone Triperoxide ◽  
Factors Influencing ◽  
Diacetone Diperoxide

scholarly journals Factors Influencing Triacetone Triperoxide (TATP) and Diacetone Diperoxide (DADP) Formation: Part 2

2013 ◽  
Vol 38 (6) ◽  
pp. 841-851 ◽  
Author(s):  
Jimmie C. Oxley ◽  
James L. Smith ◽  
Lucus Steinkamp ◽  
Guang Zhang
Keyword(s):  
Triacetone Triperoxide ◽  
Factors Influencing ◽  
Diacetone Diperoxide

scholarly journals Towards the fluorogenic detection of peroxide explosives through host–guest chemistry

2018 ◽  
Vol 5 (4) ◽  
pp. 171787 ◽  
Author(s):  
Estefanía Almenar ◽  
Ana M. Costero ◽  
Pablo Gaviña ◽  
Salvador Gil ◽  
Margarita Parra
Keyword(s):  
Aqueous Media ◽  
Sensory Systems ◽  
Fluorescent Detection ◽  
Cyclodextrin Derivatives ◽  
Triacetone Triperoxide ◽  
Diacetone Diperoxide ◽  
Guest Chemistry

Two dansyl-modified β-cyclodextrin derivatives ( 1 and 2 ) have been synthesized as host–guest sensory systems for the direct fluorescent detection of the peroxide explosives diacetone diperoxide (DADP) and triacetone triperoxide (TATP) in aqueous media. The sensing is based on the displacement of the dansyl moiety from the cavity of the cyclodextrin by the peroxide guest resulting in a decrease of the intensity of the fluorescence of the dye. Both systems showed similar fluorescent responses and were more sensitive towards TATP than DADP.

scholarly journals Generalization Across Acetone Peroxide Homemade Explosives by Detection Dogs

2021 ◽  
Vol 1 ◽  
Author(s):  
Lucia Lazarowski ◽  
Alison Simon ◽  
Sarah Krichbaum ◽  
Craig Angle ◽  
Melissa Singletary ◽  
...  
Keyword(s):  
Individual Variation ◽  
Individual Variability ◽  
High Variability ◽  
Explosives Detection ◽  
Chemical Analyses ◽  
Triacetone Triperoxide ◽  
Similarities And Differences ◽  
Acetone Peroxide ◽  
Diacetone Diperoxide ◽  
Security Gap

Effective explosives detection requires dogs to generalize their response to untrained variations of targets that are related to those with which they were trained. Previous research suggests that dogs tend to be highly specific to their trained odors, and are sensitive to alterations in odor profiles. Triacetone triperoxide (TATP) is an increasingly popular homemade explosive due to the widespread accessibility of starting materials. The large variety of reagent sources and production approaches yields high variability in deployed formulations. Whether dogs trained with pure forms of TATP generalize to other variations is unknown, representing a potentially significant security gap. In the current study, we tested dogs (n = 11) previously trained to detect pure TATP with four variants: diacetone diperoxide (DADP), a homologue often created as a TATP byproduct, and three different clandestine TATP formulations designed to emulate those used by terrorists or insurgents. On average, dogs detected each untrained variant at rates equivalent to the trained TATP (ps > 0.07), with individual variability in first-trial alerts for some of the variants. Chemical analyses paralleled the canine results, showing distinct similarities and differences. For the TATP samples, the laboratory-grade was the purest sample tested and did not contain DADP or the TATP homologue that the three clandestine versions showed in their respective headspace profiles. The headspace results showed that each sample could be clearly identified as TATP, yet they showed recognizable differences due to their individual syntheses. These findings suggest that training on pure TATP may be effective for generalization to untrained variants. Further research is necessary to identify factors that influence individual variation in generalization between dogs, as well as other explosives.

In-situ identification of TATP and DADP particles collected with transparent tapes by Raman spectroscopy and imaging

2021 ◽  
Author(s):  
Zhenwen Sun ◽  
Guannan Zhang ◽  
Yonggang Li ◽  
Ting Qiao ◽  
Zhanfang Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Terrorist Attacks ◽  
Triacetone Triperoxide ◽  
High Explosives ◽  
Diacetone Diperoxide

Triacetone triperoxide (TATP) and its byproduct diacetone diperoxide (DADP) are commonly used home-made high explosives in bombing cases and terrorist attacks. However, these two peroxide explosives are unstable and prone...

scholarly journals Comparison of Oxidative Powers of DADP and TATP - A DFT Treatise

2021 ◽  
pp. 67-80
Author(s):  
Lemi Türker
Keyword(s):  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Organic Peroxide ◽  
Functional Treatment ◽  
Organic Component ◽  
Triacetone Triperoxide ◽  
Composite Systems ◽  
Group Ii ◽  
Diacetone Diperoxide

Diacetone diperoxide (DADP) and triacetone triperoxide (TATP) are very sensitive organic-peroxide type explosives which are easily synthesized. The present density functional treatment considers oxidative powers of DADP and TATP molecules based on comparison of their interactions with certain group II-metals at the level of B3LYP/6-311++G(d,p). Composite systems of DADP and TATP with Be, Mg and Ca have been considered. Although, in the case of beryllium composites, DADP and TATP and in the magnesium composite of DADP the organic component remains intact, Ca composites of DADP and TATP undergo ring rapture. Certain structural, electronic, quantum chemical and some spectral properties of the composites have been obtained and discussed.

scholarly journals Factors Influencing Destruction of Triacetone Triperoxide (TATP)

2013 ◽  
Vol 39 (2) ◽  
pp. 289-298 ◽  
Author(s):  
Jimmie C. Oxley ◽  
James L. Smith ◽  
Joseph E. Brady ◽  
Lucus Steinkamp
Keyword(s):  
Triacetone Triperoxide ◽  
Factors Influencing

Gas-phase Concentration of Triacetone Triperoxide (TATP) and Diacetone Diperoxide (DADP)

2017 ◽  
Vol 42 (6) ◽  
pp. 623-634 ◽  
Author(s):  
Martin A. C. Härtel ◽  
Thomas M. Klapötke ◽  
Benedikt Stiasny ◽  
Jörg Stierstorfer
Keyword(s):  
Gas Phase ◽  
Triacetone Triperoxide ◽  
Phase Concentration ◽  
Diacetone Diperoxide

Factors influencing adhesive bonding at the bone/implant interface

1992 ◽  
Vol 50 (2) ◽  
pp. 1114-1115
Author(s):  
Julie A. Martini ◽  
Robert H. Doremus
Keyword(s):  
Electron Microscopy ◽  
Adhesive Bonding ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Bone Implant ◽  
Factors Influencing ◽  
Lr White ◽  
Transmission Electron ◽  
New Zealand White Rabbits ◽  
Scanning Electron

Tracy and Doremus have demonstrated chemical bonding between bone and hydroxylapatite with transmission electron microscopy. Now researchers ponder how to improve upon this bond in turn improving the life expectancy and biocompatibility of implantable orthopedic devices.This report focuses on a study of the- chemical influences on the interfacial integrity and strength. Pure hydroxylapatite (HAP), magnesium doped HAP, strontium doped HAP, bioglass and medical grade titanium cylinders were implanted into the tibial cortices of New Zealand white rabbits. After 12 weeks, the implants were retrieved for a scanning electron microscopy study coupled with energy dispersive spectroscopy.Following sacrifice and careful retrieval, the samples were dehydrated through a graduated series starting with 50% ethanol and continuing through 60, 70, 80, 90, 95, and 100% ethanol over a period of two days. The samples were embedded in LR White. Again a graduated series was used with solutions of 50, 75 and 100% LR White diluted in ethanol.

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