Video Experimental Relacionado
Updated: May 12, 2026
07:49
On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes
Published on: August 5, 2016
Disponibilidad de nitazenos a través de criptomarkets y tiendas web de superficie: un estudio observacional
Nicola Man1, Monica J Barratt1,2, Rachel Sutherland1
1National Drug and Alcohol Research Centre, University of New South Wales (UNSW), Sydney, New South Wales, Australia.
Addiction (Abingdon, England)
|February 20, 2026
Resumen
La disponibilidad de nitazeno aumentó en los mercados de la web oscura de 2021 a 2024, con orígenes y formas cambiantes. Estos hallazgos resaltan la necesidad de un monitoreo digital continuo y sólidas estrategias de salud pública para los nuevos opioides sintéticos.
Área de la Ciencia:
- Química Forense Química Forense es una especialidad de la medicina forense.
- Ciencias Forenses Digitales en línea.
- Salud Pública La salud pública.
Sus antecedentes:
- Los nitazenos son potentes opioides sintéticos con una creciente preocupación mundial.
- Su disponibilidad en mercados ilícitos plantea riesgos significativos para la salud pública.
- Comprender la dinámica del mercado es crucial para las intervenciones específicas.
Objetivo del estudio:
- Evaluar la disponibilidad y las características de los nitazenos en los criptomarkets internacionales y las tiendas web de superficie.
- Para identificar los países de origen y destino de los productos de nitazeno anunciados.
- Para rastrear los cambios en las tendencias del mercado de nitazeno a lo largo del tiempo.
Principales métodos:
- Estudio observacional de 34 criptomercados y 10 tiendas web de superficie desde octubre de 2021 hasta septiembre de 2024.
- Análisis de las listas de medicamentos, centrándose en los nitazenos, su origen, destino y forma.
- Regresión del punto de unión para los datos del criptomercado y análisis descriptivo para las tiendas web de superficie.
Principales resultados:
- Los listados de Nitazene aumentaron en los criptomarkets (MPC = 1.7%), con una disminución en la disponibilidad para la entrega australiana (MPC = -2.1%).
- El origen se desplazó de Asia a América del Norte, mientras que el isotonitazeno y el protonitazeno aumentaron, y el metonitazeno disminuyó.
- El polvo siguió siendo dominante, pero las píldoras aumentaron significativamente (MPC = 11,8%); el 70% de las tiendas web de superficie ofrecieron entrega australiana.
Conclusiones:
- Los mercados de nitazeno muestran cambios dinámicos en origen, tipo y forma, lo que requiere una vigilancia digital continua.
- Estas ideas subrayan la importancia de las estrategias de reducción de daños y la comunicación de salud pública para los nuevos opioides sintéticos.
Palabras clave:
criptomercados y criptomercados.La monitorización digital de las huellas digitales.Mercados de drogas mercados de drogas.nuevas sustancias psicoactivas.Nitazenes también.Nuevos opiáceos sintéticos nuevos.Más Videos Relacionados
06:06Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones
Published on: February 5, 2018
07:30A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones
Published on: January 21, 2020
Videos de Conceptos Relacionados
01:49The Nitrogen Cycle
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
01:12Preparation of Nitriles
One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
01:20Electrophilic Aromatic Substitution: Nitration of Benzene
The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid.
01:22Preparation of 1° Amines: Azide Synthesis
Direct alkylation of ammonia produces polyalkylated amines, along with a quaternary ammonium salt. To exclusively prepare primary amines, the azide synthesis method can be used.
Azide ions act as good nucleophiles and react with unhindered alkyl halides to form alkyl azides. Alkyl azides do not participate in further nucleophilic substitution reactions, thereby eliminating the chances of polyalkylated products. Alkyl azides are reduced by hydride-based reducing agents, like lithium aluminum...
Azide ions act as good nucleophiles and react with unhindered alkyl halides to form alkyl azides. Alkyl azides do not participate in further nucleophilic substitution reactions, thereby eliminating the chances of polyalkylated products. Alkyl azides are reduced by hydride-based reducing agents, like lithium aluminum...
01:29Preparation of Amines: Reduction of Oximes and Nitro Compounds
Oximes can be reduced to primary amines using catalytic hydrogenation, hydride reduction, or sodium metal reduction. The reduction of aliphatic and aromatic nitro compounds to primary amines takes place by either catalytic hydrogenation or by using active metals like Fe, Zn, and Sn in the presence of an acid.
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
01:202° Amines to N-Nitrosamines: Reaction with NaNO2
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.