42 documents found, page 1 of 5

PVP formulations of bis-cyclometalated iridium(III) complexes bearing β-modifie...

Cancer stands as the second leading global cause of death, following heart disease. Considering the severe side effects revealed by some chemotherapeutics for tumor treatment and anticancer therapies, the scientific community is actively exploring more effective alternatives. Photodynamic Therapy (PDT) mediated by porphyrin-based photosensitizers (PS) has emerged as an attractive alternative to more conventiona...

How to dissect viral infections and their interplay with the host-proteome by i...

The capabilities of bioanalytical mass spectrometry to (i) detect and differentiate viruses at the peptide level whilst maintaining high sample throughput and (ii) to provide diagnosis and prognosis for infected patients are presented as a tutorial in this work to aid analytical chemists and physicians to gain insights into the possibilities offered by current high-resolution mass spectrometry technology and bi...

Lifetime and fluorescence quantum yield of two fluorescein-amino acid-based com...

N-confused porphyrin immobilized on solid supports: synthesis and metal ions se...

In this work, the N-confused porphyrin 5,10,15,20-tetraphenyl-2-aza-21-carbaporphyrin (NCTPP) was immobilized on neutral or cationic supports based on silica and on Merrifield resin. The new materials were characterized by appropriate techniques (UV-Vis spectroscopy, SEM, and zeta potential analysis). Piezoelectric quartz crystal gold electrodes were coated with the different hybrids and their ability to intera...

An unusual highly emissive water-soluble iridium lissamine-alanine complex and ...

The interaction of iridium(III) with a new lissamine rhodamine B sulfonyl derivative, bearing alanine as a building block, (1) with an orange emission in water results in a green highly emissive Ir@1 complex at room temperature. The new Ir@1 complex can sense the toxic Hg2+ metal ion and cysteine. Based on such properties, a new sophisticated molecular logic gate with three inputs was designed.

An unusual highly emissive water-soluble iridium lissamine-alanine complex and ...

The interaction of iridium(III) with a new lissamine rhodamine B sulfonyl derivative, bearing alanine as a building block, (1) with an orange emission in water results in a green highly emissive Ir@1 complex at room temperature. The new Ir@1 complex can sense the toxic Hg2+ metal ion and cysteine. Based on such properties, a new sophisticated molecular logic gate with three inputs was designed.

Metallomesogens with Luminescent Behaviour: Palladium Complexes Derived from Al...

A series of meso-tetraaryl-substituted free-base porphyrins containing different numbers of alkyl amide chains with different lengths, as well as the corresponding palladium(II) and platinum(II) complexes, were prepared in good yields and were fully characterised. The crystal structure of the palladium(II) complex containing eight alkyl chains with five carbon atoms was unequivocally elucidated by means of sing...

Synthesis, characterization and biological evaluation of cationic porphyrin-ter...

A simple access to a new series of cationic porphyrin-terpyridine derivatives is described. The key step to obtain the required neutral precursors as major products involved a Krohnke type approach. The methodology allowed also the isolation of the respective benzoporphyrins and porphyrin-chalcone type derivatives, and in one case a new 2-(2,4-terpyridin-6-yl)-porphyrin. The quaternization of the pyridyl groups...

New rhodamine dimer probes for mercury detection via color changes and enhancem...

From yellow to pink using a fluorimetric and colorimetric pyrene derivative and...

1st International Caparica Conference on Chromogenic and Emissive Materials; A new simple and multifunctional fluorescent probe based on pyrene linked through an imine bond to a hydroxyphenol unit was synthesised, fully characterized and investigated in solution. Additionally, its behaviour in the presence of several ions (H+, Zn2+, Cd2+, Cu2+, Ni2+, Pb2+, Fe2+, Hg2+ and Al3+) was investigated in CH2Cl2. It was...