Advertisement

Topics

A mixed ligand approach towards lanthanide-based gels using citric acid as assembler ligand: white light emission and environmental sensing.

08:00 EDT 2nd April 2019 | BioPortfolio

Summary of "A mixed ligand approach towards lanthanide-based gels using citric acid as assembler ligand: white light emission and environmental sensing."

Fine tuning the optical properties of lanthanide-based gels using low molecular weight gelators has several advantages over the polymeric gelator analogues. Herein, we have prepared a lanthanide-based gel using low molecular weight citric acid as the assembler ligand and the optical properties of the gel were fine-tuned, utilizing a mixed ligand approach, enabling white light emission and environmental sensing (pH and temperature). The coligand utilized in the study was 4'-(4-bromophenyl)-2,2':6',2''-terpyridine. The resultant mixed-ligand gel exhibited green and red emissions in the presence of Tb(iii) ions and Eu(iii) ions, respectively. White light emission was achieved, with CIE coordinates (0.33, 0.32), in the bimetallic Tb/Eu metallogel formed by the precise control over Tb/Eu ratio. The correlated color temperature (CCT) for white-light-emitting gel was calculated, and the value of 5473 K suggests that the system generates cool white light. While most of the reported low molecular weight gelators exhibit on-off responses to stimulus at a particular value, the present system is capable of gradually monitoring changes for stimuli such as pH and temperature over a wide range (pH from 4-11 and temperature from 20 to 70 °C). The unique design strategy of the gel and the characteristic physicochemical properties of the lanthanide ions resulted in the unprecedented ability of the system to monitor changes in environmental stimuli over a considerable range.

Affiliation

Journal Details

This article was published in the following journal.

Name: Soft matter
ISSN: 1744-6848
Pages:

Links

DeepDyve research library

PubMed Articles [23959 Associated PubMed Articles listed on BioPortfolio]

Accelerating structural life science by paramagnetic lanthanide probe methods.

We describe the recent progress of structural analysis methods exploiting paramagnetic lanthanide ions. In NMR spectroscopy, the paramagnetic effects induced by the trivalent lanthanide ions provide l...

Formulation, process conditions, and biological evaluation of dairy mixed gels containing fava bean and milk proteins: Effect on protein retention in growing young rats.

Food formulation and process conditions can indirectly influence AA digestibility and bioavailability. Here we investigated the effects of formulation and process conditions used in the manufacture of...

Lanthanide-Based Coordination Polymers With 1,4-Carboxyphenylboronic Ligand: Multiemissive Compounds for Multisensitive Luminescent Thermometric Probes.

Reactions in water of lanthanide chlorides with the sodium salt of 1,4-carboxyphenylboronic acid lead to two series of isostructural compounds with respective general chemical formulas [Ln(cpb)(HO)] f...

Multi-Emissive Lanthanide-Based Coordination Polymers for Potential Application as Luminescent Bar-Codes.

Isostructural lanthanide-based coordination polymers that are obtained by reactions in water of a lanthanide chloride and the sodium salt of 5-methoxyisophthalate (mip) have the general chemical formu...

Structural and Luminescence Properties of Anthracene- and Biphenyl-Based Lanthanide Bisphosphonate Ester Coordination Polymers.

Coordinative networks containing lanthanide ions attached via phosphonate ester functionalities provide remarkable luminescence properties. On the basis of ditopic phosphonic ester ligands with biphen...

Clinical Trials [6397 Associated Clinical Trials listed on BioPortfolio]

BufferGel and PRO 2000/5: Vaginal Gels to Prevent HIV Infection in Women

The majority of HIV infected people worldwide became infected with the virus through heterosexual contact. BufferGel and PRO 2000 Gel are vaginal gels designed to prevent women from becomi...

A Phase I Pharmacokinetics and Safety Study of Two Dapivirine Intravaginal Gels

IPM 012 is a double-blind, randomized, placebo-controlled phase I study conducted at one research center in Belgium among 36 healthy, HIV-negative women of 18-40 years of age, randomized i...

Evaluation of Irritation That Could be Caused by Two Facial Gels Applied to Opposite Sides of the Face.

A study to compare the skin irritation potential of two marketed gels for acne treatment, each applied to half of the face of healthy volunteers.

Trial to Evaluate PRO 2000/5 Gels for the Prevention of Vaginally Acquired HIV Infection

The objective of the study is to determine the efficacy and safety of 0.5% and 2% PRO 2000/5 gels compared to placebo in preventing vaginally acquired HIV infection.

Evaluation of PET/MRI Using a Somatostatin Analog Tracer as a Novel Approach to Detecting Pathology in High Risk TB-exposed Contacts

PET/MRI (positron emission tomography/magnetic resonance imaging) with somatostatin analog tracers has the potential to provide an imaging technique targeting subclinical granulomatous dis...

Medical and Biotech [MESH] Definitions

Approach to improve the quality of care by selectively encouraging or discouraging the use of specific health care services, based on their potential benefit to patients' health, relative to their cost. One element is lowering beneficiary cost sharing or out-of-pocket spending to increase medication adherence.

Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.

Synthetic organosiloxane gels that are formed from synthetic polymers of silicone oxide with organic sidechains (polydimethylsiloxane) by lengthening the polymer chains. Unlike silicone elastomers, they are not treated with amorphous silica. They are used as fillers in breast implants.

Silicone polymers which consist of silicon atoms substituted with methyl groups and linked by oxygen atoms. They comprise a series of biocompatible materials used as liquids, gels or solids; as film for artificial membranes, gels for implants, and liquids for drug vehicles; and as antifoaming agents.

Dressings comprised of a self-adhesive matrix to which hydrophilic absorbent particles are embedded. The particles consist of CELLULOSE derivatives; calcium ALGINATES; PECTINS; or GELS. The utility is based on providing a moist environment for WOUND HEALING.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article