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A heterogeneous catalyst for Fenton reaction was prepared by immobilizing Fe(III) onto collagen fiber and its catalytic activity for the photo-assisted decomposition of Malachite Green (MG) was investigated. The results indicated that this Fe(III)-immobilized collagen fiber (Fe-CF) can effectively catalyse the decoloration and decomposition/mineralization(More)
Haemophilus parasuis is the causative agent of Glässer's disease, which is responsible for the increasing economic losses in the pig industry worldwide. In this study, selective capture of transcribed sequences approach was used to investigate the transcriptional responses of H. parasuis to iron-restriction stress. Thirty-six genes were identified to be(More)
We have investigated the modification of collagen with a natural plant polyphenol, procyanidin under acidic conditions. Fourier transform infrared spectroscopy (FTIR) and Atomic force microscopy (AFM) studies demonstrate that the hydrogen bond interactions between collagen and procyanidin does not destroy the triple helix conformation of collagen, and the(More)
The antioxidant activity of Gnaphalium affine extract (GAE) against H2O2-induced oxidative injury in Caco-2 cells was evaluated, and the main antioxidant component was isolated and identified by column chromatography, high performance liquid chromatography, time-of-flight mass spectrometer and nuclear magnetic resonance. In vitro assays, GAE showed(More)
Previous studies in humans have demonstrated that HLA genes can profoundly influence the TCR V beta repertoire. To similarly assess the influence of HLA genes on the TCR V alpha segment repertoire, the V alpha repertoires of 12 individuals from three unrelated families were determined by quantitative PCR. Each family contained at least one pair of(More)
HPLC and spectrophotometric methods were developed for the determination of total catechins in tea extracts. A comparison was made of the two methods after validation. The HPLC method was carried out using a Hypersil ODS C(18) column and a methanol-0.2% acetonitrile gradient elution. This method showed good resolution of individual catechins, and was found(More)
The golden Syrian hamster is the model of choice or the only rodent model for studying many human diseases. However, the lack of gene targeting tools in hamsters severely limits their use in biomedical research. Here, we report the first successful application of the CRISPR/Cas9 system to efficiently conduct gene targeting in hamsters. We designed five(More)
Homogeneous BT-stabilized Pd(0) nanoparticles are highly active for the biphasic hydrogenation of hydrophobic substrates because BT is an amphiphilic polymer that can form hydrophobic bonds with the organic phase, thus increasing the possibility of catalytic species to contact with hydrophobic substrates.
Tannins occur commonly in the wastewaters from forestry, plant medicine, paper and leather industries. The treatment of this kind of wastewaters, including settling and biodegradation, is usually difficult because tannins are highly soluble in water and would inhibit the growth of microorganisms in activated sludge. The objective of this study is to(More)
Fe (III) modified collagen fibers were used to immobilize catalase through the cross-linking of glutaraldehyde. The loading amount of catalase on the supporting matrix was 16.7 mg/g, and 35% enzymatic activity was remained. A series of experiments were conducted on free and immobilized catalase in order to investigate their optimal pH and temperature, and(More)