Facile green preparation of highly fluorescent nitrogen-doped carbon dots from bagasse for sensitive methyl parathion detection.

In this work, a high sensitivity fluorescence sensor system utilizing nitrogen-doped carbon dots (N-CDs) from bagasse was studied. A method was developed to examine methyl parathion (MP) via alkali hydrolysis. N-CDs were prepared via hydrothermal method from biomass bagasse.

Common carp sperm chromatin as an economical and effective remover for benzo()pyrene from pollutants.

Benzo (a) pyrene is a highly carcinogenic polycyclic aromatic compound, difficult to be degraded, widely present in the environment. However, there is currently no cost-effective and efficient method for removing benzo (a) pyrene. In this study, a feasible method was introduced to cheaply and efficiently adsorb benzo()pyrene using chromatin.

Efficient removal of ethidium bromide from aqueous solutions using chromatin-loaded chitosan polyvinyl alcohol composites.

In this work, a novel chromatin-loaded chitosan polyvinyl alcohol composite was developed as a simple, efficient and environmentally friendly adsorbent for the efficient removal of ethidium bromide (EtBr). SEM images showed that the composites were characterized by dense porous and uniformly distributed morphology. The BET analysis showed the presence of mesopores and macropores in the composites.

Optimization of aflatoxin B removal efficiency of DNA by resonance light scattering spectroscopy.

In this paper, firstly, the resonance light scattering spectra of aflatoxin B (AFB) and DNA were measured by resonance light scattering spectroscopy (RLS), and the DNA binding saturation value (DBSV) of AFB was calculated from their spectral results. Then the interaction intensity between DNA and AFB and the effects of some external factors on the interaction between DNA and AFB were evaluated by corresponding DBSVs, so as to establish and optimize a way for removing AFB by DNA. DBSV of AFB was 2.

Chromatin extracted from common carp testis as an economical and easily available adsorbent for ethidium bromide decontamination.

The waste of ethidium bromide (EtBr) used in the laboratory will bring a great burden to the environment, which need to be solved urgently. In the present paper, an efficient and inexpensive method for EtBr removal using chromatin extracted from common carp testis was investigated. The observation of fluorescence microscopy showed that chromatin had similar property to DNA for selective adsorption of EtBr.

Interaction of aflatoxin G with free DNA and possibility of its application in removing aflatoxin G.

The present study sought to evaluate the interaction between aflatoxin G and free DNA through different analytical techniques. The UV-visible spectra results showed that the structure of DNA might be changed with a new aflatoxin G-DNA complex forming, which indicated that the interacting mode between them was the intercalating mode. The DNA melting temperature increased by 12.

Predicting Protein Surface Property with its Surface Hydrophobicity.

This article reviews and discusses the relationship between surface hydrophobicity and other surface properties of proteins and the possibility of using surface hydrophobicity as a key indicator to predict and evaluate the changes in the surface properties of a protein. Hydrophobicity is the main driving force of protein folding; it affects the structure and functions. Surface hydrophobicity and other surface properties of proteins are controlled by their spatial structures.

Interacting mechanism of benzo(a)pyrene with free DNA in vitro.

Polycyclic aromatic hydrocarbons are environmental pollutants with strong carcinogenicity, indirect teratogenicity, and mutagenicity. This study explored the interaction mechanism of benzo(a)pyrene with free DNA in vitro by using various analytical methods. UV-vis spectra showed that benzo(a)pyrene and DNA formed a new benzo(a)pyrene-DNA complex.

Removal of 1,2-benzanthracene via the intercalation of 1,2-benzanthracene with DNA and magnetic bead-based separation.

In this study, DNA-functionalize-magnetic beads were investigated as sorbent materials for effective removing 1,2-benzanthracene (BaA) from water. In order to reveal the removal mechanism, the interaction mode between BaA and DNA was evaluated by using various characterization tools such as UV-visible and circular dichroism spectroscopy, fluorescence and resonance scattering spectroscopy, and agarose gel electrophoresis. In the presence of BaA, the melting temperature of DNA increased from 76.

Binding characteristics of aflatoxin B with free DNA in vitro.

In this paper, the binding characteristics of aflatoxin B (AFB) with the herring sperm deoxyribonucleic acid (DNA) in vitro were investigated through different analytical methods. The ultraviolet-visible spectroscopy (UV-vis), fluorescence, and circular dichroism (CD) spectra results showed that a new AFB-DNA complex was formed. All the results suggested that AFB interacted with free DNA in vitro in an intercalating binding mode.

Effect of oxidization and chitosan on the surface activity of soy protein isolate.

The objective of this research was to study the effect of oxidization of performic acid and chitosan on the structure and surface properties of soy protein isolate. As the degree of oxidization increased, the emulsifying capacity and stability of all the oxidized soy protein isolate and chitosan (SPI/CHI) systems increased substantially, which were 29.7%, 31.

Spectroscopic studies on the interaction between anthragallol and DNA using of ethidium bromide as a fluorescence probe.

The interaction of DNA with anthragallol (Ant) was investigated using ethidium bromide (EB) as a fluorescence probe, and the binding mechanism of Ant with DNA was researched via viscosity measurements. The results indicate that there is a complex of Ant and DNA, as confirmed by Ultraviolet visible absorption spectroscopy (UV-vis), Fluorescent and Resonance Light Scattering spectrum (RLS) and viscosity measurements. Ant molecules could intercalate with the base pairs of DNA as evidenced by the hyperchromic effect of absorption spectra, the relative viscosity of DNA and significant increases in the melting temperature.