Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Crown Ethers02:36

Crown Ethers

6.2K
Crown ethers are cyclic polyethers that contain multiple oxygen atoms, usually arranged in a regular pattern. The first crown ether was synthesized by Charles Pederson while working at DuPont in 1967. For this work, Pedersen was co-awarded the 1987 Nobel Prize in Chemistry. Crown ethers are named using the formula x-crown-y, where x is the total number of atoms in the ring and y is the number of ether oxygen atoms. The term 'crown' refers to the crown-like shape that these ether molecules...
6.2K
Preparation of Epoxides03:00

Preparation of Epoxides

9.5K
Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...
9.5K
Structure and Nomenclature of Epoxides02:38

Structure and Nomenclature of Epoxides

8.1K
Cyclic ethers are heterocyclic compounds with an oxygen atom in the ring along with carbon atoms. They are named depending on the number of carbon atoms present in their ring system. Cyclic ethers with a three-membered ring system are called “oxirane”, four-membered ring systems as “oxetane”, five-membered ring systems as “oxolane”, and six-membered ring systems as “oxane”. The cyclic structure of these rings imposes angle strain, and this strain...
8.1K
[3,3] Sigmatropic Rearrangement of Allyl Vinyl Ethers: Claisen Rearrangement01:24

[3,3] Sigmatropic Rearrangement of Allyl Vinyl Ethers: Claisen Rearrangement

2.9K
The Claisen rearrangement is a [3,3] sigmatropic rearrangement of allyl vinyl ethers to unsaturated carbonyl compounds. The rearrangement is a concerted pericyclic reaction proceeding via a chair-like transition state.
2.9K
Maxam-Gilbert Sequencing01:05

Maxam-Gilbert Sequencing

13.1K
In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
13.1K
Restriction Enzymes01:11

Restriction Enzymes

36.7K
Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
36.7K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Precision Oligo(ethylene glycol) Interfaces Shape Nanoparticle Biodistribution through In Vivo Protein Corona.

Journal of the American Chemical Society·2026
Same author

Oral Delivery Systems for Gasotransmitters in Therapeutic Applications.

Polymer science & technology (Washington, D.C.)·2026
Same author

Emerging Poly(ethylene glycol)-Lipid Alternatives for New-Generation Lipid Nanoparticles.

Polymer science & technology (Washington, D.C.)·2026
Same author

Photoresponsive Discoidal Polymersomes With Tracelessly Crosslinkable Bilayers for Intracellular Drug Delivery.

Angewandte Chemie (International ed. in English)·2026
Same author

Prodrug-tethered lipid nanoparticles for synergistic messenger RNA cancer immunotherapy.

Nature nanotechnology·2026
Same author

The PEG Dilemma in Lipid Nanoparticles.

Small methods·2026
Same journal

Efficient Syngas Photoproduction Enabled by Electronic Engineering of Co-Immobilized Imine COFs.

Angewandte Chemie (International ed. in English)·2026
Same journal

Pathway Controlled Phase Separation of Minimal Building Blocks Utilizing a Dissociative Chemical Transformation.

Angewandte Chemie (International ed. in English)·2026
Same journal

Interaction Hierarchy and Polymorphic Structure-Property Dynamics in Luminescent Molecular Crystals.

Angewandte Chemie (International ed. in English)·2026
Same journal

The Role of Zn-Hf Site Proximity and Oxygen Vacancies for Methanol Formation Over ZnHfO<sub>x</sub> Catalysts Under CO<sub>2</sub> Hydrogenation Conditions.

Angewandte Chemie (International ed. in English)·2026
Same journal

Breaking the Linear Scaling Relationship: Bioinspired Electronic Coupling in S-Bridged Fe-Fe Dual Sites for Efficient Oxygen Reduction.

Angewandte Chemie (International ed. in English)·2026
Same journal

Programming Bio-Bio Electronic Interfaces for Light-Driven Interspecies Electron Transfer.

Angewandte Chemie (International ed. in English)·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Feb 20, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

8.0K

Oligourethano Isoméricos Definidos por Secuencia para Cifrado Irreversible

Lingxiao Guo1, Qiangqiang Shi1, Jin Zhang1

  • 1State Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China.

Angewandte Chemie (International ed. in English)
|February 19, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio presenta mezclas isoméricas de oligourethano definidos por secuencia (SDOs) para el cifrado molecular seguro de datos. Estas mezclas crean un cifrado irreversible, ofreciendo un nuevo enfoque para la seguridad de datos y la lucha contra la falsificación.

Palabras clave:
MS/MS de MALDI-TOFcifrado irreversiblemezcla isoméricadecodificación de secuenciasoligourethano definido por secuencia

Más Videos Relacionados

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

23.3K
Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

11.2K

Videos de Experimentos Relacionados

Last Updated: Feb 20, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

8.0K
Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

23.3K
Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
11:09

Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation

Published on: August 1, 2018

11.2K

Área de la Ciencia:

  • Química de Polímeros
  • Criptografía Molecular
  • Seguridad de la Información

Sus antecedentes:

  • Se exploran los polímeros definidos por secuencia (SDPs) para el almacenamiento y cifrado de datos.
  • Los métodos actuales se basan en síntesis complejas (por ejemplo, cadenas más largas, monómeros diversos).
  • Necesidad de estrategias de cifrado molecular más simples y seguras.

Objetivo del estudio:

  • Introducir un novedoso mecanismo de cifrado utilizando mezclas isoméricas de oligourethano definidos por secuencia (SDOs).
  • Demostrar un proceso de cifrado molecular intrínsecamente unidireccional e irreversible.
  • Desarrollar una plataforma escalable para la seguridad de datos de próxima generación y la lucha contra la falsificación.

Principales métodos:

  • Se utilizaron mezclas isoméricas de oligourethano definidos por secuencia (SDOs).
  • Se empleó MALDI-TOF MS para demostrar la identidad composicional oculta debido a pesos moleculares idénticos.
  • Se aplicó la fragmentación en tándem MS/MS para generar rutas de decodificación degeneradas.
  • Se integraron mezclas en tintas digitales moleculares CMYK para impresión y transmisión.

Principales resultados:

  • Las mezclas isoméricas de SDO colapsan en un solo pico en MALDI-TOF MS, ocultando la composición.
  • La fragmentación en tándem MS produce múltiples vías de decodificación no únicas, lo que impide la reconstrucción.
  • Demostración de prueba de concepto con cuatro isómeros octaméricos del principio de cifrado.
  • Integración exitosa en tintas CMYK para la transmisión segura de información.

Conclusiones:

  • Las mezclas de oligómeros isoméricos representan una nueva clase de medios criptográficos moleculares.
  • El método ofrece un cifrado molecular intrínsecamente unidireccional e irreversible.
  • Este enfoque une el diseño químico con la teoría de la información para una seguridad de datos avanzada.