Results 71 to 80 of about 39,960 (300)

Piperazine Abuse and Psychosis: A Systematic Review of the Literature

open access: yesPsychiatry International
Background: Piperazines, synthetic compounds known for their stimulant and hallucinogenic effects, have gained prominence among novel psychoactive substances (NPS) and are frequently associated with adverse psychiatric outcomes, including psychosis ...
Alessio Mosca   +9 more
doaj   +1 more source

NMR-based investigations of acyl-functionalized piperazines concerning their conformational behavior in solution

open access: yesRSC Advances, 2018
Selected N-benzoylated piperazine compounds were synthesized to study their conformational behavior using temperature-dependent 1H NMR spectroscopy.
R. Wodtke   +4 more
semanticscholar   +1 more source

Surface‐Bound Superoxide Radical‐Mediated Photo‐Fenton Mineralization of Ciprofloxacin on Fe‐Sillenite Nanosheets

open access: yesAdvanced Science, EarlyView.
This study systematically compares the degradation efficiency of CIP in a H2O2‐alone system and a novel Bi12FeO20‐H2O2 photo‐Fenton system. It reveals for the first time the presence of a quinone‐imine intermediate in the H2O2‐alone system, which exhibits toxicity comparable to CIP.
Wenting Qiu   +9 more
wiley   +1 more source

Development and validation of a presumptive colour spot test method for the detection of piperazine analogues in seized illicit materials [PDF]

open access: yes, 2013
The increasingly large quantities of potentially illicit samples received for confirmatory analysis highlights the importance and demand for preliminary testing procedures that are simple, rapid, selective, inexpensive and able to be used in the field ...
Fu, S   +4 more
core   +1 more source

De Novo Assembly of Highly Substituted Morpholines and Piperazines

open access: yesOrganic Letters, 2017
The morpholine and piperazine with their remarkable physical and biochemical properties are popular heterocycles in organic and medicinal chemistry used in rational property design.
P. Patil   +4 more
semanticscholar   +1 more source

The BnTFL1‐BnJAM3‐BnSWEETs Module Orchestrates Seed Storage Reserve Accumulation in Brassica napus

open access: yesAdvanced Science, EarlyView.
BnaC03.TFL1 and BnaA01.JAM3 form a complex that facilitates the transport of soluble sugars from the seed coat to the embryo by directly activating the expression of BnSWEETs. Furthermore, BnaC03.TFL1 and BnaA01.JAM3 work cooperatively to promote soluble sugar and oil production while suppressing protein deposition.
Jianjun Wang   +8 more
wiley   +1 more source

Synthesis and Antimicrobial Activity of Some Novel Substituted Piperazinyl-quinazolin-3(4H)-ones

open access: yesE-Journal of Chemistry, 2008
Several substituted-quinazolin-3(4H)-ones were synthesized by condensation of 2-chloro-N-(4-oxo-substituted-quinazolin-3(4H)-yl)-acetamides with various substituted piperazines through single step reaction. Elemental analysis, IR, 1HNMR and mass spectral
N. M. Raghavendra   +2 more
doaj   +1 more source

Novel psychoactive substances of interest for psychiatry [PDF]

open access: yes, 2015
Novel psychoactive substances include synthetic cannabinoids, cathinone derivatives, psychedelic phenethylamines, novel stimulants, synthetic opioids, tryptamine derivatives, phencyclidine-like dissociatives, piperazines, GABA-A/B receptor agonists, a ...
Corkery, John   +3 more
core   +1 more source

Erasable FAP Targeted Spray‐On Probe for Fluorescence‐Guided Surgery

open access: yesAdvanced Science, EarlyView.
We present the first erasable spray‐on probe for fluorescence‐guided surgery. Following topical delivery, FAP‐FLASH550 targets fibroblast activation protein–expressing stromal cells, delineating tumor margins with high tumor‐to‐background ratios. A 365 nm UV light pulse rapidly erases fluorescent signals through triazene photodegradation and subsequent
Zachary Rabinowitz   +2 more
wiley   +1 more source

Designer drugs: aspectos analíticos e biológicos

open access: yesQuímica Nova, 2012
In the recent years, analytical toxicologists have been facing difficulties in detecting designer drugs due to the chemical modifications on the existing structures and the speed in which they are released into the market, requiring the development and ...
Rachel Bulcão   +7 more
doaj   +1 more source

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