Topics

Luminescent Carbazole-Based Eu and Yb Complexes with a High Two-Photon Absorption Cross-Section Enable Viscosity Sensing in the Visible and Near IR with One- and Two-Photon Excitation.

07:00 EST 13th February 2020 | BioPortfolio

Summary of "Luminescent Carbazole-Based Eu and Yb Complexes with a High Two-Photon Absorption Cross-Section Enable Viscosity Sensing in the Visible and Near IR with One- and Two-Photon Excitation."

The newly synthesized Eu and Yb complexes with the new carbazole-based ligands CPAD and CPAP display the characteristic long-lived metal-centered emission upon one- and two-photon excitation. The Eu complexes show the expected narrow emission bands in the red region, with emission lifetimes between 0.382 and 1.464 ms and quantum yields between 2.7% and 35.8%, while the Yb complexes show the expected emission in the NIR region, with emission lifetimes between 0.52 and 37.86 μs and quantum yields between 0.028% and 1.12%. Two-photon absorption cross sections (σ) as high as 857 GM were measured for the two ligands. The complexes showed a strong dependence of the one- and two-photon sensitized emission intensity on solvent viscosity in the range of 0.5-200 cP in the visible and NIR region.

Affiliation

Journal Details

This article was published in the following journal.

Name: Inorganic chemistry
ISSN: 1520-510X
Pages:

Links

DeepDyve research library

PubMed Articles [29750 Associated PubMed Articles listed on BioPortfolio]

One- and two-photon absorption properties of quadrupolar A-π-D-π-A dyes with donors of varying strengths.

In this work, the one- and two-photon absorption properties of two quadrupolar A-π-D-π-A dyes, featuring carbazole and triphenylamine as donors of varying strengths, are calculated using density fun...

Giant and Multi-stage Nonlinear Optical Response in Porphyrin-based Surface-supported Metal-organic Framework Nanofilms.

Benefit from the strong intrinsic nonlinear optical (NLO) property of the individual porphyrin molecule, the integration of porphyrin molecules into tightly aligned arrays may lead to an intuitively p...

Aggregation induced emission-active two-photon absorption zwitterionic chromophore for bioimaging application.

The fabrication of two-photon absorption material is a versatile approach to achieve high resolution bioimaging with low phototoxicity yet remain sophisticated. Herein, a zwitterionic chromophore, MF,...

Luminescent nanohybrids based on silica and silylated Ru(II)-Yb(III) heterobinuclear complex: new tools for biological media analysis.

Lanthanide (Ln) complexes emitting in the near infrared (NIR) region have fostered great interest as upcoming optical tags owing to their high spatial and temporal resolution emission as well deeper l...

Multiresponsive UV-One-Photon Absorption, Near-Infrared-Two-Photon Absorption, and X/γ-Photoelectric Absorption Luminescence in One CuI Compound.

A new CuI-cluster-based compound is constructed to show multifaceted photoluminescent attributes: (1) ultraviolet (UV)-excited thermo-, mechano-, and rigido-chromic phosphorescence by the OPA (one-pho...

Clinical Trials [9164 Associated Clinical Trials listed on BioPortfolio]

High-Dose Proton/Photon RT + Surgery of Sarcomas of the Thoracic, Lumbar Spine/Sacrum

The purpose of this study is to test the effectiveness of high dose radiation administered by both proton and photon therapy. Radiation is an effective treatment for many types of tumors ...

The Prognostic Significance of Premature Ventricular Complexes in Patients Without Structural Heart Disease

With this project the investigators aim to investigate whether premature ventricular complexes (PVC) have a prognostic significance in persons without structural heart disease. Further the...

Effects of EED on Zn Absorption and Retention in Children From a Standard Dose

The overall objective is to determine the impact of EED on zinc absorption and homeostasis, and its impact on the absorptive capacity of vitamin A absorption of young children (18-24 month...

Determination of a Dose-dependent Effect of GOS on Iron Absorption, and Addition of Vitamin C

Iron deficiency is still the most common and widespread nutritional disorder in the world according to WHO. In a recent iron absorption study in adult women with low iron stores in our la...

Iron Absorption From a Wheat-based Instant Cereal:Gut and Stable Isotope Studies in Kenyan Infants

The aim of this study is to measure the effect of a prebiotic (high dose/low dose) mixture at different doses within a wheat-based instant cereal, on fractional iron absorption (FIA), gut ...

Medical and Biotech [MESH] Definitions

A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION.

Techniques using light resulting from PHYSICAL LUMINESCENCE emitted by LUMINESCENT PROTEINS and LUMINESCENT AGENTS.

Compound such as LUMINESCENT PROTEINS that cause or emit light (PHYSICAL LUMINESCENCE).

Measurement of light resulting from PHYSICAL CHEMILUMINESCENCE such as from LUMINESCENT PROTEINS and LUMINESCENT AGENTS.

Emission of LIGHT when ELECTRONS return to the electronic ground state from an excited state and lose the energy as PHOTONS. It is sometimes called cool light in contrast to INCANDESCENCE. LUMINESCENT MEASUREMENTS take advantage of this type of light emitted from LUMINESCENT AGENTS.

Quick Search


DeepDyve research library

Relevant Topic

Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...


Searches Linking to this Article