Folic acid (FA) is a key factor in the physiological processes of cell metabolism; as it is involved in DNA synthesis and repair, it can be used in the treatment of aged and photo-damaged skin. The main drawbacks associated to FA use, particularly for topical applications, are the limited solubi...

Effluents from the paper printing and textile industries are often heavily contaminated with azo dyes. Azo dyes are difficult to oxidize biologically. This work investigated the decolorization of an azo dye, C.I. Direct Red 23 (DR23), by persulfate (PS) activated with Fe0 aggregates (PS/Fe0). Ul...

Cellulose (Cel) and sugarcane bagasse (SB) were oxidized with an H3PO4-NaNO2 mixture to obtain adsorbent materials with high contents of carboxylic groups. The oxidation reactions of Cel and SB were optimized using design of experiments (DOE) and response surface methodology (RSM). The optimized...

Agrobacterium radiobacter MTCC 8161 completely decolorized the Crystal Violet with 8 hr (10 mg/L) at static anoxic conditions. The decreased decolorization capability by A. radiobacter was observed, when the Crystal Violet concentration was increased from 10 to 100 mg/L. Semi-synthetic medium co...

The interaction mechanism of Acid Orange 6 (AO6) with human serum albumin (HSA) was investigated firstly by using fluorescence quenching technique, UV absorbance, circular dichroism (CD), Fourier transform infrared (FT-IR), three-dimensional fluorescence spectroscopy in combination with molecula...

We have examined the effect of two different classes of photostabilizers, UV absorber and hindered amine light stabilizer (HALS) on Nylon 66 to prevent the photo-oxidation of the polymer matrix and colour fading of the dye. Acid blue dyes, UV absorber and HALS were observed to impart photostabil...

The photocatalytic degradation of Crystal Violet, a triphenyl methane dye (also known as Basic Violet 3) in aqueous solutions was investigated with Ag+ doped TiO2 under UV and simulated solar light. The dye degradation using untreated TiO2 and Ag+ doped TiO2 was compared. It was found that Ag+ d...

Single phase zinc oxide (ZnO) powders were obtained via solution combustion method using various amounts of mixture of polyvinylpyrrolidone and citric acid as fuel. The powders had honeycomb-like structure which transformed to spongy structure accompanied by the increase of specific surface area...

In this work, a composite of ZnO and polypyrrole (ZnO/PPy) was synthesized by polymerization method and characterized by X-ray diffraction (XRD), Ultraviolet–Visible with Near-infrared (UV–Vis NIR) spectroscopy and Fourier Transform Infrared (FT-IR) spectroscopy, both by diffuse reflectance mo...

In the present article, a new adsorbent synthesized from Salvadora persica (miswak) powder with chemical activation has been applied to remove Acid Violet 17 dye from aqueous solution. Characterization of the synthesized adsorbent was carried out using the techniques of FTIR, SEM, BET, zeta pote...

The release of antibiotics in aquatic ecosystems from the effluents of wastewater treatment plants (WTPs) is of great concern due to possible chronic toxic effects as well as contribution to antibiotic resistance spread. In the present work, the degradation of the antibiotic chloramphenicol (CAP...

Qualitative and quantitative determination of fatty acids in plasma is of extreme importance as these are indicators of metabolic diseases. In this work, a sensitive and rugged method for detecting and quantifying fatty acids (as fatty acid methyl ester derivatives, FAMEs) in blood plasma was de...

The present study focuses on the biodegradation of triphenylmethane dye crystal violet (CV) by Cedecea davisae. The degradation of CV was evaluated via ultraviolet absorbance at 254 nm (UV254) and chemical oxygen demand (COD) removal, and the kinetics was used to evaluate the degradation efficie...

A new magnetically separable visible light active indium doped ZnSNiFe2O4 photocatalyst is synthesized and evaluated for the photodegradation of acid violet 7 (AV-7) dye. Characterization of nanocomposite suggests that indium doped ZnS exists in hexagonal structure, while NiFe2O4 is in the cubic...

Titanium dioxide nanoparticles have been widely studied because of its photocatalytic effect and capacity to block ultraviolet (UV) radiation. In this work we incorporated 1 wt% and 5 wt% dioxide titanium nanoparticles (TiO2-NPs) on biodegradable polymer Ecovio® for the purpose to block UV radia...

The bactericidal activity of ferulic acid (FA) against various microorganisms was remarkably enhanced by ultraviolet-A (UV-A) irradiation (wavelength, 365 nm). However, the bactericidal mechanism in the photo-combination system has not been evaluated. In the present study, this combined treatmen...

Safflower is well-known by textile conservators and restorers as the red dye source that produces a nice, though very delicate pink colour that is extremely light-sensitive. The fading due to light sensitivity can be seen in many historical silk fabrics from the most renowned museums and it is a...

Intertidal rocky shore ecosystems are affected by steep environmental gradients such as fluctuating solar irradiation and salinity along the marine-terrestrial interface. The eulittoral red alga Pyropia plicata (Bangiales) is endemic and abundant to coastal regions of New Zealand and almost unst...

A new method in which Pb/Zn smelter waste containing arsenic and heavy metals (arsenic sludge), red mud and lime are utilized to prepare red mud-based cementitious material (RCM) is proposed in this study. XRD, SEM, FTIR and unconfined compressive strength (UCS) tests were employed to assess the...

We propose a simple strategy to obtain a luminescence intensity ratio nanothermometer operating in the near infrared range (1000–1700 nm) by use of binary mixtures of lanthanide doped Y2O3 selected as 1%Ho - Y2O3 + 1%Er - Y2O3 and 1%Ho - Y2O3 + 1%Nd - Y2O3. All nanoparticles were synthetized by...