Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Nuclear Transmutation

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...

Fermi Level Dynamics

Fermi Level Dynamics

The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...

Hybridization of Atomic Orbitals II

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization

Energy to Drive Translocation

Energy to Drive Translocation

Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...

π Electron Effects on Chemical Shift: Overview

π Electron Effects on Chemical Shift: Overview

An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0, resulting in...

Energy Transfer in Chemical Reactions

Energy Transfer in Chemical Reactions

Chemical reactions require sufficient energy to cause the matter to collide with enough precision and force that old chemical bonds can be broken and new ones formed. In general, kinetic energy is the form of energy powering any type of matter in motion. Imagine a person building a brick wall. The energy it takes to lift and place one brick on top of another is the kinetic energy—the energy matter possesses because of its motion. Once the wall is in place, it stores potential energy. Potential...

You might also read

Related Articles

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

Sort by

Same author

Comparison of lung scintigraphy with multi-slice spiral computed tomography in the diagnosis of pulmonary embolism.

Clinical nuclear medicine·2009

Same author

[Analysis on the characters of injuries in body surface and deduction of injury-causing instruments in 146 cases].

Fa yi xue za zhi·2009

Same author

Impact of ketone and amino on the inner shell of guanine.

Journal of synchrotron radiation·2009

Same author

Actin turnover is required for myosin-dependent mitochondrial movements in Arabidopsis root hairs.

PloS one·2009

Same author

Direct observation of a widely tunable bandgap in bilayer graphene.

Nature·2009

Same author

Investigation of second-order nonlinearity in poled-polymer during photobleaching.

Optics express·2009

Same journal

Publisher Correction: Ultralow-voltage electrochemical organic light-emitting transistors with pinned and wide lateral recombination.

Nature materials·2026

Same journal

High-Chern-number orbital magnetism in twisted rhombohedral graphene.

Nature materials·2026

Same journal

Programming local confinements in crystalline frameworks through reticular chemistry.

Nature materials·2026

Same journal

Single-crystal-like polymer semiconductors via self-templated gradient assembly for ultrahigh charge carrier mobility.

Nature materials·2026

Same journal

Fractional quantum anomalous Hall effect in moiré fractional Chern insulators.

Nature materials·2026

Same journal

Excitons in van der Waals magnetic materials.

Nature materials·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 28, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Tuning upconversion through energy migration in core-shell nanoparticles.

Feng Wang¹, Renren Deng, Juan Wang

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

Nature Materials

|October 25, 2011

Summary

This summary is machine-generated.

Researchers developed novel gadolinium-based nanoparticles with core-shell structures for efficient photon upconversion. This design enables tunable emissions for applications like bioimaging and solar cells by controlling energy transfer.

More Related Videos

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Triplet Fusion Upconversion Nanocapsule Synthesis

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

Related Experiment Videos

Last Updated: May 28, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

Triplet Fusion Upconversion Nanocapsule Synthesis

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

Area of Science:

Materials Science
Nanotechnology
Photonics

Background:

Photon upconversion is a key process for advanced applications including biological imaging, data storage, and solar cells.
Gadolinium-based nanoparticles offer potential for upconversion but require optimized designs for efficiency and tunability.

Purpose of the Study:

To investigate upconversion processes in diverse gadolinium-based nanoparticles.
To develop a rational design strategy for efficient and tunable photon upconversion materials.

Main Methods:

Synthesis and characterization of gadolinium-based nanoparticles with core-shell structures.
Incorporation of lanthanide ions into separated layers at precise concentrations.
Analysis of gadolinium sublattice-mediated energy migration and cross-relaxation effects.

Main Results:

Efficient upconversion emission achieved through gadolinium sublattice-mediated energy migration.
Core-shell structure effectively eliminated deleterious cross-relaxation.
Tunable upconversion emission demonstrated by trapping energy via activators.

Conclusions:

Rational design of core-shell structures with controlled lanthanide doping enables efficient upconversion.
Gadolinium sublattice-mediated energy migration provides a pathway for broad-spectrum activator compatibility.
This approach offers a general strategy for creating novel luminescent materials with tunable upconversion properties.