Sentences with phrase «nanocrystals as»

Synthesis of Luminescent Near - Infrared AgInS2 Nanocrystals as Optical Probes for In Vivo Applications Liwei Liu, Rui Hu, Indrajit Roy, Guimiao Lin, Ling Ye, Jessica L. Reynolds, Jianwei Liu, Jing Liu, Stanley A. Schwartz, Xihe Zhang, Ken - Tye Yong Theranostics 2013; 3 (2): 109 - 115.

Not exact matches

Conventional perovskite nanocrystals capped with ligands consisting of long straight - chain amines show poor stability in solvents such as water and alcohol.

According to Zhang, the branching structure of the ligands protects the surface of the nanocrystals by occupying more space than straight - chain molecules, creating a mechanical barrier through an effect known as steric hindrance.

«Our hope is that this could be used not only for perovskite nanocrystals but also for bulk materials and thin films used in applications such as photovoltaics.»

Nanocrystals selectively infused, or «doped», with rare - earth ions have attracted the attention of researchers, because of their low toxicity and ability to convert low - energy laser light into violet - colored luminescence emissions — a process known as photon upconversion.

Using their technique, the researchers have so far fabricated uniform metallic, ferroelectric, upconversion, semiconducting and thermoelectric nanocrystals, as well as combinations thereof.

Cerium oxide nanocrystals have the ability to absorb and release oxygen ions — a chemical reaction known as reduction oxidation, or redox, for short.

This effect, called structural color, has also been found in chameleons that can «tune» nanocrystals in their skin to change color the way tuning a guitar changes its pitch, as reported in 2015 in Nature Communications.

Reaction setup for the nanocrystal synthesis in the presence of star - shaped block - co-polymer as nanoreactor.

Once they had established the chemical and physical details about the nanocrystals, the team then tested the particles as «staining» agents on a tissue sample containing liver cancer cells held on a microscope slide.

Their tests with transmission electron microscopy on the nanocrystals, which form as ultrathin films, plates and tiny particles, reveal the desired quality and uniformity.

They produce the materials by heating a readily available precursor material, which also allows them to incorporate triply charged europium ions, Eu3 +, as «dopants» into any of the LaOBr nanocrystals.

Other forms of quantum dots could be used as a sensor in place of the molecule, such as those that can be realized with semiconductor materials: one example would be quantum dots made of nanocrystals like those already being used in fundamental research.

Using star - shaped block co-polymer structures as tiny reaction vessels, researchers have developed an improved technique for producing nanocrystals with consistent sizes, compositions and architectures — including metallic, ferroelectric, magnetic, semiconductor and luminescent nanocrystals.

The new particles are about 200 microns long and include several stripes of different colored nanocrystals, known as «rare earth upconverting nanocrystals.»

In a breakthrough development, Los Alamos scientists have shown that they can successfully amplify light using electrically excited films of the chemically synthesized semiconductor nanocrystals known as quantum dots.

Made from aluminium gallium arsenide, the nanocrystals are 500 times narrower than a human hair and can be applied to ordinary glass as ultra-thin, lightweight films.

Researchers at CNRS, CEA and the Université Grenoble Alpes propose an efficient alternative using semi-conductor nanocrystals (also called quantum dots) based on cheaper and less toxic elements, such as copper, indium and sulfur.

The nanocrystals would be sprayed by a hand - launched drone such as the Raven (pictured).

For example, nanocrystals prefer to become oriented along the same direction as the larger crystal before attaching, much like adding Legos.

Foreign researchers honored as the 31st KIA laureates include: Prof. Eric Vivier (France) for his research on harnessing innate immunity against cancer; Prof. Jianfang Wang (Hong Kong, China) for his research on Colloidal Plasmonic Metal Nanocrystals; Prof. Majed Chergui (Switzerland) for his research on unravelling the fundamentals of solar; Prof. Katharina Gaus (Australia) for her research on Single molecule imaging of T cell receptor signaling; and Prof. Dr. Burkhard Büdel (Germany) for his research on Role of lichens and cyanobacteria in biological soil crusts.

The Nitrogen - Vacancy defect (NV centre) in diamonds and diamond nanocrystals (nanodiamonds) provides a unique alternative for DNP as the NV centre electron spin can be optically polarized to over 90 % polarization at room temperature by short laser pulses.

On one nanotube a metal particle serves as an atom reservoir that can source or sink atoms to or from the nanocrystal ram.

Berkeley Lab reports, «The material is a thin coating of nanocrystals embedded in glass that can dynamically modify sunlight as it passes through a window.

The researchers found that the composite material not only could control both NIR light and visible light, but that there was «a synergistic interaction in the tiny region where glassy matrix meets nanocrystal that increases the potency of the electrochromic effect,» which means that thinner coatings of the material could pack just as much punch.

But look beyond the stunning organic screens, as I did today, and you'll find some great LED - LCDs using the nanocrystal technology that Samsung and Sony are talking up big time.