Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Orthogonal Trajectories01:26

Orthogonal Trajectories

71
Orthogonal trajectories describe the geometric relationship between two families of curves that intersect each other at right angles. One illustrative case involves a family of parabolas that open sideways along the x-axis. These curves share a common shape but differ by a scaling parameter, resulting in a set of curves that all pass through the origin and widen at different rates.Determining Orthogonal TrajectoriesTo identify the orthogonal trajectories for these parabolas, the first step...
71
System of Memory01:23

System of Memory

7.4K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
7.4K
Working Memory01:24

Working Memory

905
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
905
Long-Term Memory01:18

Long-Term Memory

697
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
697
Traumatic Memory01:20

Traumatic Memory

591
Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
591
Repressed Memory01:16

Repressed Memory

526
Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
526

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Structural Engineering of Rare-Earth Nanomaterials.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Chiral emission from chirotopic nanostructures.

Nature communications·2026
Same author

Shortwave Infrared Upconversion Imaging with Tunable Dual-Resonance Microcavity.

Nano letters·2026
Same author

Upconversion Nanoparticles: Toward Programmable Nanoscale Photonic Systems.

Accounts of chemical research·2026
Same author

Manipulation of X-Ray Persistent Radioluminescence in Core-Shell-Shell Nanoparticles for Energy-Discriminated Chromatic 3D Imaging.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Mid-infrared detection through ligand-driven local heating in lanthanide-doped nanoparticles.

Nature communications·2026
Same journal

Integrated Electrode-to-Device Design via Combination of Grain Boundary Reconstruction and Dynamic Gas Management Toward Stable 3 Ah Aqueous Zinc-Iodine Pouch Cells.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Diblock Copolymer Engineered Swim Bladder Membrane Enables Spatiotemporal Synchronized Defense and Pro-Healing in Challenging Soft Tissue Regeneration.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Solvation Chemistry Reimagined: LiPF6-Enabled Suppression of Gas Evolution for Ultra-Stable 200 Ah Anode-Free Lithium-Metal Batteries.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Entropy-Driven Conformational Disorder Enables Outstanding High-Temperature Energy Storage in Dielectric Polymers.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Breaking Thermal Conductivity-Electrical Resistivity Trade-Off in Liquid Metal-Based Thermal Interface Materials via Interface Engineering.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Screen-Printed Few-Layer Graphene Platforms for Monitoring Switchable Spin-Crossover Phenomena at Room-Temperature.

Advanced materials (Deerfield Beach, Fla.)·2026
See all related articles

Related Experiment Video

Updated: Feb 9, 2026

Triplet Fusion Upconversion Nanocapsule Synthesis
08:36

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

2.9K

Rewritable Optical Memory Through High-Registry Orthogonal Upconversion.

Kezhi Zheng1,2, Sanyang Han1, Xiao Zeng1

  • 1Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore.

Advanced Materials (Deerfield Beach, Fla.)
|June 12, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed rewritable optical memory using core-shell upconversion nanoparticles and diarylethene molecules. This system uses distinct light wavelengths to write and erase data with high precision.

Keywords:
cyclization reactionhigh spectral purityoptical memoryorthogonal upconversionreversible photoswitching

More Related Videos

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K
A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers
08:05

A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers

Published on: January 5, 2018

10.2K

Related Experiment Videos

Last Updated: Feb 9, 2026

Triplet Fusion Upconversion Nanocapsule Synthesis
08:36

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

2.9K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.6K
A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers
08:05

A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers

Published on: January 5, 2018

10.2K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Optics

Background:

  • Optical data storage is crucial for high-density information.
  • Developing rewritable optical memory with high fidelity remains a challenge.
  • Upconversion nanoparticles (UCNPs) offer unique photophysical properties for advanced applications.

Purpose of the Study:

  • To report an experimental design for rewritable optical memory.
  • To utilize core-shell UCNPs combined with diarylethene photochromic molecules.
  • To achieve data writing and erasing with high spatiotemporal resolution.

Main Methods:

  • Fabrication of core-shell UCNPs.
  • Integration of diarylethene photochromic molecules with UCNPs.
  • Utilizing dual-wavelength laser excitation (980 nm and 1532 nm) for optical control.

Main Results:

  • UCNPs exhibited two distinct emission bands with ultrahigh spectral purity.
  • Ultraviolet emission (980 nm excitation) triggered diarylethene cyclization (C-C bond formation).
  • Green emission (1532 nm excitation) induced diarylethene C-C bond cleavage, enabling data erasure.

Conclusions:

  • The core-shell UCNP and diarylethene system provides a viable platform for rewritable optical memory.
  • The distinct optical pathways allow for precise and reversible data manipulation.
  • This approach offers a convenient and versatile method for optical data storage.