Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying

Abstract:
A work in Advanced Functional Materials shows how spray-drying prepared MOF nanoparticles containing lanthanide metals may be used as nanothermometers operative over a wide range of temperatures, in particular, in the cryogenic range. The work was coordinated from the University of Aveiro (Portugal) and participated by Ramón y Cajal Researcher Dr Inhar Imaz and ICREA Research Prof Daniel Maspoch from the ICN2 Supramolecular NanoChemistry & Materials Group.

Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying

Bellaterra, Spain | Posted on April 16th, 2015

Members of the ICN2 have collaborated in a new research to get nanothermometersthat can provide accurate, noninvasive and self-referenced temperature measurements at the submicrometer scale. Ramón y Cajal Researcher Dr. Inhar Imaz and ICREA Research Prof Daniel Maspoch from the Supramolecular NanoChemistry & Materials Group have participated in the research which has been coordinated from University of Aveiro (Portugal). The results have been published in Advanced Functional Materials in an article entitled Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying.

The thermal dependence of the phosphor's luminescence provides high detection sensitivity and spatial resolution with short acquisition times in, e.g., biological fl uids, strong electromagnetic
fields, and fast-moving objects.

The strategy followed to design this kind of devices relies on the thermal dependence of the phosphor luminescence, which provides high detection sensitivity and special resolution with short acquisition times in, e.g., biological fluids, strong electromagnetic fields, and fast-moving objects.

The temperature determination is usually based on the change of the luminescence intensity or decay times. However, the measurements based on a single f-f transition may be much affected by the variation of the sensor concentration and the drift of the optoelectronic systems, namely, the excitation sources and detectors. Recently, authors reported self-reference nanothermometers based on the intensity ratio of two f-f transitions that overcome the drawbacks of temperature determination with a single transition.

The article also shows that spray-drying prepared MOF nanoparticles may be used as ratiometric luminescent nanothermometers operative over a wide range of temperatures, in particular, in the cryogenic range. Prof Maspoch and Dr Imaz have contributed in the synthesis of the MOF nanoparticles of Tb(III) and Eu(III), the first lanthanide-organic framework prepared by the spray-drying method. This system is the most sensitive cryogenic nanothermometer reported so far, combining high sensitivity, reproducibility, and low-temperature uncertainty.

Article Reference

Wang, Z., Ananias, D., Carné-Sánchez, A., Brites, C. D. S., Imaz, I., Maspoch, D., Rocha, J. and Carlos, L. D. (2015), Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying. Adv. Funct. Mater.. doi: 10.1002/adfm.201500518

####

For more information, please click here

Contacts:
Alicia Labian

Copyright © ICN2

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Researchers develop artificial building blocks of life March 8th, 2024

How surface roughness influences the adhesion of soft materials: Research team discovers universal mechanism that leads to adhesion hysteresis in soft materials March 8th, 2024

Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting March 8th, 2024

Curcumin nanoemulsion is tested for treatment of intestinal inflammation: A formulation developed by Brazilian researchers proved effective in tests involving mice March 8th, 2024

Discoveries

What heat can tell us about battery chemistry: using the Peltier effect to study lithium-ion cells March 8th, 2024

Researchers’ approach may protect quantum computers from attacks March 8th, 2024

High-tech 'paint' could spare patients repeated surgeries March 8th, 2024

Nanoscale CL thermometry with lanthanide-doped heavy-metal oxide in TEM March 8th, 2024

Announcements

What heat can tell us about battery chemistry: using the Peltier effect to study lithium-ion cells March 8th, 2024

Curcumin nanoemulsion is tested for treatment of intestinal inflammation: A formulation developed by Brazilian researchers proved effective in tests involving mice March 8th, 2024

The Access to Advanced Health Institute receives up to $12.7 million to develop novel nanoalum adjuvant formulation for better protection against tuberculosis and pandemic influenza March 8th, 2024

Nanoscale CL thermometry with lanthanide-doped heavy-metal oxide in TEM March 8th, 2024

Tools

First direct imaging of small noble gas clusters at room temperature: Novel opportunities in quantum technology and condensed matter physics opened by noble gas atoms confined between graphene layers January 12th, 2024

New laser setup probes metamaterial structures with ultrafast pulses: The technique could speed up the development of acoustic lenses, impact-resistant films, and other futuristic materials November 17th, 2023

Ferroelectrically modulate the Fermi level of graphene oxide to enhance SERS response November 3rd, 2023

The USTC realizes In situ electron paramagnetic resonance spectroscopy using single nanodiamond sensors November 3rd, 2023

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project