JBCS

This review manly focusses on development of energy conversion devices, such as dye-sensitized solar cells, solar fuels, photosensors and light-emitting devices by outlining investigations carried out at the Laboratory of Photochemistry and Energy Conversion (LFCE) in the University of São Paulo, including researches that led to technological innovation.

A simple sol-gel functionalization method through PEGylation (PEG = polyethylene glycol) in the presence of one amyloid-like peptide is presented. The secondary peptide structure conversion from anti-parallel to parallel β-sheets shows correlation with the viscoelastic properties in hybrid hydrogel systems.

Dyes from "urucum" seeds were intercalated into layered double hydroxides, two-dimensional organized materials.

Suggested process to obtain fluorescent carbon-dots (CBDs) from waste tire by means of three steps as following: (i) heating; (ii) oxidation; (iii) purification.

Perchlorate ions act as better templates for macrocyclization of methyl-bambus[6]uril and greatly improve its synthesis yield.

[Ru₂(L₁)₄(CH₃OH)(PPh₃)₂(H₂O)] complex, where L₁ = benzoic acid, a versatile ligand, which form complexes with good cytotoxicity against several tumor cells.

A new series of ruthenium complexes based on push-pull terpyridine and polypyridyl ligands were prepared. The [Ru(py)(dcbpy)(TPAtpy)] (py: pyridine, dcbpy: 4,4'-dicarboxi-2,2'-bipyridine and TPAtpy: 4-tripheylamine-2,2',2"-terpyridine) complex showed the best performance in dye sensitized solar cells due to its highest surface concentration and neutral charge on TiO₂.

Design methodology of cobalt colored pigments using polysaccharides and metal nitrates (Mg, Al, and Zn).

Electrode modified with gold nanoparticles and porphyrins, spectroscopic characterization and sensing for detection of nitrite and sulfite.

A free-base meso-tetra(4-pyridylvinylphenyl)porphyrin 1a and its zinc(II) derivative was peripherally functionalized with [Ru(bpy)₂Cl]⁺ units generating the respective tetra-ruthenated species, and their photophysical, electrochemical and biological properties reported. Also, the tetra-ruthenated porphyrins exhibit great potential as amperometric sensor for nitrite.

A new symmetrical dirhenium(I) complex can be applied in chemical sensing and in cancer chemotherapy.

In this work, we described the performance of the modified 3D printed electrodes with Prussian Blue analogues.

A biquinoline complex displaying low-lying metal-to-ligand charge transfer (MLCT) absorptions sensitizes NO release from a ruthenium nitrosyl with visible-light irradiation.

Self-assembled nanoparticles of the diruthenium-ibuprofen anticancer metallodrug are formed in 1-5% ethanol/water or ethanol/cell growth medium mixtures.

Magnetic solid phase extraction of contaminants from wastewater based on superparamagnetic zeolite nanocomposites.

Transmission electron microscopy (TEM) images of α-Ni(OH)₂ and Ni_0.8Ce_0.2-layered double hydroxide nanoparticles and respective electrochemical behavior.

Class II or class III? A fundamental question in characterization of every mixed-valence system. Density functional theory (DFT) calculations are a powerful tool to address this matter for cyanide-bridged ruthenium polypyridine systems.

Heterostructured Langmuir-Blodgett (LB) films constituted by naphtyl-1,3,4-oxadiazole (NFT1) amphiphile and its ruthenium complex were employed in charge storage electrodes, that combines characteristics of NFT1 double layer capacitance and Faradaic capacitance from ruthenium complex monolayer.

New perylene-derived calixarene depicted emission at 540 nm with high quantum yield (ⲫ = 0.31) designed for potential application in fluorescent biological markers (brightness 2) and light-emitting devices.

The supramolecular system obtained with a copper(II) complex and multi-walled carbon nanotube (MWCNT) promotes the electro-oxidation of epinephrine and uric acid.

[Zn₃(BTC)₂∙12H₂O] (BTC = 1,3,5-tricarboxylate) was prepared by microwave-assisted hydrothermal synthesis. Doping it with Eu³⁺ allowed for tuning the optical properties besides delivering crystallographic information not detectable by X-ray diffraction (XRD).

A mononuclear Ru photocatalyst was structurally and electronically characterized, and its proton-coupled multi-electron reactivity was demonstrated through the photooxidation of benzyl alcohol in water at room conditions (RTP).

MWO₄:Tm³⁺ (M: Sr, Ba) materials were prepared by the coprecipitation method at room temperature. The optical results indicate that the materials can be used as an alternative to blue-emitting markers.