Video Experimental Relacionado

Updated: Jul 27, 2025

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography

Published on: May 16, 2014

Transformación alotrópica de la molécula de nanohoja de yodo para la antibiótica

Yanling You^1,2, Ya-Xuan Zhu³, Junjie Jiang⁴

¹Shanghai Institute of Ceramics Chinese Academy of Sciences; Research Unit of Nanocatalytic Medicine in Specific Therapy for Serious Disease, Chinese Academy of Medical Sciences, Shanghai 200050, People's Republic of China.

Journal of the American Chemical Society

|June 7, 2023

Resumen

Un nuevo nanomaterial bidimensional de yodo, el iodinene, demuestra una potente actividad antibacteriana in vivo. Este yodineno trata eficazmente las infecciones de heridas y la neumonía mediante la liberación de moléculas activas de yodo in situ.

Área de la Ciencia:

Ciencias de los materiales
Nanotecnología
Enfermedades infecciosas

Sus antecedentes:

Los compuestos de yodo son antisépticos eficaces de amplio espectro, pero limitados por su escasa estabilidad y biocompatibilidad para aplicaciones in vivo.
Los agentes actuales basados en yodo están restringidos a usos tópicos, lo que requiere nuevas formulaciones para el tratamiento de infecciones sistémicas.

Objetivo del estudio:

Desarrollar y evaluar un nuevo nanomaterial bidimensional de yodo, el iodinene, para el tratamiento in vivo de enfermedades infecciosas.
Investigar el mecanismo de la actividad antimicrobiana mediada por yodo y su eficacia contra los patógenos bacterianos comunes.

Principales métodos:

Fabricación de nanohojas de yodo mediante exfoliación líquida asistida por sonorización.
Evaluación de la transformación alotrópica in situ del yodo y de la liberación de especies activas de yodo (HIO e I2) en un entorno de peróxido de hidrógeno.
Evaluación de la eficacia antibacteriana contra Staphylococcus aureus, Escherichia coli y Pseudomonas aeruginosa en modelos in vitro e in vivo de infección de heridas y neumonía.

Principales resultados:

Las nanohojas de yodo se sintetizaron con éxito con una estructura en capas y baja toxicidad.
Los microambientes infecciosos desencadenaron la transformación del yodineno, liberando moléculas activas de HIO e I2.
El iodineno exhibió una mayor eficacia antibacteriana contra los patógenos probados y demostró efectos terapéuticos significativos en el tratamiento de infecciones bacterianas de heridas y neumonía in vivo.

Conclusiones:

El yodineno representa un nanomaterial bidimensional prometedor para la terapia antimicrobiana avanzada.
Su mecanismo único de transformación in situ ofrece una nueva estrategia para superar las limitaciones de los antisépticos convencionales de yodo.
Este estudio proporciona una nueva vía para desarrollar tratamientos efectivos contra infecciones bacterianas difíciles.

Más Videos Relacionados

Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes

Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes

Published on: September 12, 2018

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration

Published on: March 29, 2019

Videos de Conceptos Relacionados

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.

Structural Isomerism

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...

Redox Titration: Iodimetry and Iodometry

Redox Titration: Iodimetry and Iodometry

Iodometry and iodimetry are analytical methods used to determine the concentration of oxidizing or reducing agents using iodine. In iodometric titrations, the oxidizing analyte solution is usually acidified and treated with an excess of iodide ions, which generates an equivalent amount of iodine in equilibrium with triiodide. The released iodine is subsequently titrated directly against a standardized reducing agent. As the dilute iodine color becomes pale yellow, a few drops of freshly...