Using 3,3′-di-n-propoxybenzidine, 3,3′-di-n-butoxybenzidine and 3,3′-di-(β-hydroxyethoxy)-benzidine as diazo components, and 2,4-diamino-n-propoxybenzene, 2,4-diamino-n-butoxybenzene and 2,4-diaminophenyl-β-hydroxyethyl ether as coupling components, a series of new black trisazo dyes were p...

A new blue Co-based inorganic-organic hybrid pigment was fabricated through a rapid one-step synthetic route. The blue pigment was characterized by field-emision scanning electron microscopy, transmittance electron microscopy, X-ray photoelectron spectroscopy, CNH elemental analysis, mercury por...

The aim of this study was to investigate on the presence, dissemination and persistence of blue pigmenting Pseudomonas strains in a cheese factory previously involved in cases of blue spoilage of mozzarella cheese. The production of the blue pigment is strain or species specific, and an effectiv...

Cobalt blue is a famous pigment in human history. In the past decade it is widely reported that the cobalt aluminate has been detected in ancient ceramics as blue colorant in glaze, yet the acquired Raman spectra are incredibly different from that of synthesised references, necessitating a reass...

BackgroundBasal cell carcinoma (BCC) is the most frequent of all skin cancers in the white population. The typical dermoscopic features of pigmented BCCs have been well known. In the literature a new dermoscopic pattern of BCC has been reported as “blue-white variant”.

Pseudomonas fluorescens Ps_77 is a blue-pigmenting strain able to cause food product discoloration, causing relevant economic losses especially in the dairy industry. Unlike non-pigmenting P. fluorescens, blue pigmenting strains previously were shown to carry a genomic region that includes homol...

In this study, the Mesoporous material SBA-15 were synthesized and then, the surface was modified by the surfactant Cetyltrimethylammoniumbromide (CTAB). Finally, the obtained adsorbent was used in order to remove Reactive Red 198 (RR 198) from aqueous solution. Transmission electron microscope ...

At its natural pH (6.95), the decolorization of Reactive red 24 in ultrasound, ultrasound/H2O2, exfoliated graphite, ultrasound/exfoliated graphite, exfoliated graphite/H2O2 and ultrasound/exfoliated graphite/H2O2 systems were compared. An enhancement was observed for the decolorization in ultra...

Environmental friendly materials, K6SiW11O39Sn (SiWSn), was synthesized. SiWSn photocatalytic decomposition of C. I. Reactive Red 24 (RR24) with the UV-lamp (253.7 nm, 20 W), Xenon lamp filtered less than 390 nm light (500 W) and sun light was investigated. The results showed that RR24 solution ...

A series of hydroxyl ammonium ionic liquids/layered double hydroxides intercalation composites (ILs/LDHs) were synthesized and adopted to study the adsorption process of anionic dye reactive orange 5 from aqueous solutions. The ILs/LDHs and LDHs were characterized by infrared spectroscopy (IR), ...

Lingo-1 is selectively expressed on both oligodendrocytes and neurons in the central nervous system (CNS) and serves as a key negative regulator of nerve regeneration, implying a therapeutic target for spinal cord injury (SCI). Here we described a strategy to knock-down Lingo-1 expression in viv...

Congo Red, Evans Blue and Titan Yellow were studied in pure component solutions and in mixtures with doxorubicin. Congo Red was analyzed in both unprotonated and protonated forms which mimics the neutral and acidic pH of solutions. The analysis was based on the molecular dynamics simulations wit...

Two blue aggregation induced emission (AIE) luminogens containing phenanthroimidazole and tetraphenylethylene were designed and synthesized. The optical properties, thermal stability, electronic properties, electrochemical properties and electroluminescence of both the derivatives were studied. ...

The size of CoFe Prussian blue analogue nanoparticles containing either rubidium or cesium cations was controlled by their formation through a nucleation process inside the calibrated pores of an ordered mesoporous silica matrix. The corresponding references were synthesized in powder form using...

We report the fabrication of a stretchable array of active-matrix (AM) electrochromic devices (ECDs). The ECD is made of poly(3-methylthiophene) and Prussian blue electrodes with a mixed gel electrolyte of acetonitrile, poly(methyl methacrylate), propylene carbonate, and lithium perchlorate. The...

The present study deals with the preparation, characterization of a green natural product-based adsorbent, acid washed black cumin seeds (AWBC), and its application for adsorption of Methylene blue (MB) dye from aqueous solution. AWBC was prepared by washing black cumin (BC) seed powder with hyd...

A rapid method was developed for the determination of yellow and red pigment groups in cochineals, a natural food colourant. The method was based on UV–visible spectrophotometric measurement at two characteristic wavelengths. The wavelengths 420 and 500 nm were selected as the most appropriate ...

The palette of four Persian manuscripts of the 16th and 17th centuries were established by Raman microscopy to include lazurite, red lead, vermilion, orpiment, a carbon-based black, lead white, malachite, haematite, indigo, carmine and pararealgar. The first five pigments were identified on all ...

(Ni, Sb)-co-doped rutile yellow ceramic pigments were synthesized via a mechanical activation-assisted solid-state reaction in a stirred bead mill. The effects of mechanical grinding of the raw materials on the synthesis of (Ni, Sb)-co-doped rutile pigment were investigated. The results show tha...

The identification of artworks’ constituent materials is a prerequisite for the development of appropriate art conservation methodologies, as well as for addressing authenticity issues. The present study focuses on the characterization of acrylic emulsion paints, with the use of Pyrolysis coupl...