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This study aimed to develop a safe and advanced antibacterial material of electrospun microfiber membranes (MFMs) for wound dressings. Combinations of several materials were investigated; thermal treatment and electrospinning techniques were used to form the best quality of MFMs to suit its end applications. By comparing the fiber morphology, diameter changes, and fracture strength, the suitable ratio of raw materials and thermal treatment were obtained before and after adding Trition X-100 as a surfactant for MFMs of sodium alginate/polyvinyl alcohol/polyethylene oxide (SA/PVA/PEO). The electrospinning solution was mixed with berberine as an antibacterial substance; meanwhile, calcium chloride (CaCl2) was used as the crosslinking agent. The antibacterial properties, water dissolution resistance, water content, and fracture strength were thoroughly investigated. The results showed that the antibacterial rates of MFMs with different mass fractions of berberine (0, 3, and 5 wt.%) to Escherichia coli (E. coli) were 14.7, 92.9, and 97.2%, respectively. The moisture content and fracture strength of MFMs containing 5 wt.% berberine were 72.0% and 7.8 MPa, respectively. In addition, the produced MFMs embodied great water dissolution resistance. Berberine-loaded SA/PVA/PEO MFMs could potentially serve as an antibacterial wound dressing substrate with low cost and small side effects.

Heavy metal contamination is a serious concern worldwide. In order to remove heavy metal ions from wastewater efficiently, multifunctinoal biomass-based material have been utilized. Herein, hyperbranched polymer modified cellulose biomass (HBP-CB) derived from textile waste materials ramie fibers was successfully developed by construction of Fe3O4/SiO2/polymer multiple structure through an etch-fill strategy. Specifically, Fe3O4 and SiO2 particles were introduced to the oxidation etching cellulose surface, and subsequently modified by hyperbranched polymer The adsorption behavior of the adsorbent toward two classes of heavy metal ions was investigated. The results indicated that HBP-CB owned excellent adsorption capacities for chromium and Cu(II) with maximum 123.5 mg/g and 149.0 mg/g and magnetic recovery performance in aqueous medium. These are owing to the oxidization etching biomass matrix with a higher BET surface area of 4.61 m2/g and the hybrid multiple structure modified by functional hyperbranched polymer with high dense adsorptive sites on the matrix. The adsorption behavior was well described by pseudo-second-order kinetic model and Langmuir isotherm model, revealing a rapid surface adsorption and monolayer spontaneous chemical adsorption. For recycling, 81% of adsorption capacity could be retained after five recovery cycles. These demonstrate that the hybrid multiple structure based on biomass, nanomaterials and polymer could provide sustainable and high-performance adsorption property for wastewater treatment.

In order to develop negative ion functional cotton knitting products with good performance, tourmaline powder was selected as the anion additive, and the anion functional finishing of cotton knitting products was carried out by the two-dip and two-rolling process. The microstructures of tourmaline powder and anion functional cotton fabric were observed, their anion emissions were measured, and the influences of particle size and amount of anion additive on the finishing effect were discussed. The results showed that, after grinding, the particle size of tourmaline powder decreased to different degrees and its distribution was more uniform. The negative ion emission of tourmaline powder was enhanced compared with that before grinding. The properties of cotton knitted fabric treated with ground negative ion additive were better than those treated with non-ground one. The contents of negative ion additive and modification temperature both have great influence on the amount of anion emission of finished cotton fabric. The anion functional cotton fabric had certain washing durability and needs to be improve.

Radio Frequency Identification automatic recognition technology (RFID) has brought new revolutionary changes to the intellectualization of garment production. In this study, the use of RFID in the information collection process of garment manufacturing was mainly described. And how to carry out automatic identification of RFID technology in clothing production and the module structure of information system was analyzed. An intelligence information collection system of clothing manufacturing based on RFID was established in order to realize the production of clothing information in real time so as to solve the problem of lag in production information transmission. It would provide an effective solution and reference for the production process to achieve transparency and production management visualization in delivery and collection.

The intelligent clothing hanging production system is an efficient new fashion production method to meet the current production practice. The development history and production structure of intelligent clothing suspension system are summarized. The process adaptability of the system and the requirement of process balance in the application process are discussed. The results showed that the clothing hanging production system has basically realize intelligence after many years of development. This system is an elastic combination system composed of transmission hardware and control software, and through the coordination of master control software and transmission hardware, it can be achieved easily that real-time management, automatic balance material, automatic material sorting, parallel operation of multiple styles process. Compared with the traditional garment production methods, the effective use of intelligent clothing hanging production system can improve the production efficiency of at least 20–30%.

The evaluation of clothing beauty has always been the focus of attention of designers and consumers, and subjective description is the main method of evaluation, but lack of effective objective evaluation method. In this paper, 15 different tests and 4 different fashion pictures were selected, and the eye movement data of different testers on garment modeling were collected and analyzed by means of Eye tracker, and the data was compared with the subjective evaluation in the traditional context. The results showed that the result of eye movement data analysis is consistent with the language description, which shows that the method of garment modeling evaluation based on eye movement experiment is a feasible objective evaluation method.

Spectrum-fingerprint anti-counterfeiting fiber with double luminous centers was tentatively prepared using S r A l 2 O 4 : E u 2 + , D y 3 + , S r 2 M g S i 2 O 7 : E u 2 + , D y 3 + , and PAN powder as main raw materials by wet spinning. The microstructure and spectral properties of the fiber were studied by means of scanning electron microscope (SEM), x-ray diffractometer (XRD), and a fluorescence spectrophotometer. The results showed that the two rare-Earth luminous materials were randomly dispersed on the interior and surface of the fiber. Due to the spinning process, the luminescent materials were agglomerated in fiber, and there were many voids in the fiber. Compared with pure rare-Earth luminous materials, the emission wavelength of the spectrum-fingerprint anti-counterfeiting fiber has no obvious shift, but the addition proportion and amount of two rare-Earth luminous materials have great influence on the spectral curve of the fiber. This fiber with two luminous centers maintains the basic characteristics of spectrum-fingerprint anti-counterfeiting fiber and is a new, to the best of our knowledge, type of anti-counterfeiting fiber with high anti-counterfeiting application potential.

Transparent inorganic pigment is the color-filler material for manufacturing spectrum-fingerprint anti-counterfeiting fiber, and has great effects on the emission spectral characteristics of the fiber. In order to explain the change mechanism of the emission spectral characteristics of spectrum-fingerprint anti-counterfeiting fiber and to promote the development of the fiber, several kinds of spectrum-fingerprint fiber samples were prepared by using rare-earth strontium aluminate and polyethylene terephthalate (PET) as raw materials and by adding different kinds of transparent inorganic pigments respectively in this research. The effect of transparent inorganic pigment on the spectral characteristics of the fiber was analyzed in detail by means of scanning electron microscopy (SEM), X-ray diffraction (XRD) and fluorescence spectrometer. The results showed that transparent inorganic pigment had no effect on the dispersion state and phase structure of rare-earth luminescent material in spectrum-fingerprint fiber and the microscopic morphology of the fiber. However, transparent inorganic pigment did affect the excitation and emission process of spectrum-fingerprint fiber so as to decrease its excitation and emission efficiency. The change of both the type and content of transparent inorganic pigment exerted great effects on the excitation and emission spectra of the fiber. Therefore, it was a feasible way to control the emission spectrum of spectrum-fingerprint fiber through changing the type and content of transparent inorganic pigment.

In order to further explain the changing mechanism of the emission spectral characteristics of spectrum‐fingerprint anti‐counterfeiting fiber and promote the development of the various product types of the fiber, in this research, several kinds of spectrum‐fingerprint fiber were prepared by using rare‐earth strontium aluminate as rare‐earth luminescent material, fiber‐forming polymer including PET, PP, and PA6 as matrix. The effect of polymer matrix on the excitation and emission spectra of the fiber was investigated in detail. The results showed that rare‐earth luminescent materials were distributed in the polymer matrix randomly, and the phase structure of them was not destroyed by the polymer matrix and the complex manufacturing process. The excitation and emission spectra of spectrum‐fingerprint fiber were greatly affected by the polymer matrix. The scope of efficient excitation wavelength of exciting light shortened, and the position of the strongest peak of excitation shifted to red compared with th...

A rapid and valid method was developed for simultaneous determination catechin, epicatechin and epicatechin gallate in rat plasmas using scopoletin (103 ng mL(-1)) as an internal standard (IS). The separation was performed on Eclipse plus C18 column (100 mm × 4.6 mm, 1.8 μm) at a flow rate of 0.3 mL min(-1), and acetonitrile-0.1% formic acid was used as mobile phase. The recoveries of three analytes and IS were more than 78.9%. The lower limits of quantitation (LLOQ) in rat plasma were 2.14, 2.38 and 2.08 ng mL(-1) respectively for catechin, epicatechin and epicatechin gallate. Intra-day and inter-day precisions were within 12%. The accuracies were more than 85%. After single oral administration of 15.25 g kg(-1) Cynomorium songaricum extract, C(max) of catechin, epicatechin and epicatechin gallate in rat plasma were respectively 86.69±38.65, 32.57±15.00 and 36.93±12.62 ng mL(-1) while T(max) values were respectively 0.15±0.09, 0.20±0.10 and 0.20±0.13 h. The results demonstrated that the present LC-MS/MS method was sensitive enough for pharmacokinetic study of catichins following oral administration of C. songaricum extract.

An anti‐counterfeiting fiber with spectral fingerprint characteristics (named spectrum‐fingerprint fiber) is a novel functional fiber made of rare‐earth luminescent material and fiber‐forming polymer, as main raw materials, combined with transparent inorganic pigments and functional additives by a melt‐spinning process. In order to explain more about the security principle of the fiber, several kinds of spectrum‐fingerprint fibers were prepared by using rare‐earth strontium aluminate as the rare‐earth luminescent material and fiber‐forming polymers such as PET, PP and PA6 as a matrix and combining them with transparent inorganic pigments and functional additives to study their emission spectra characteristics. The results showed that the spectrum‐fingerprint fibers, made by different spinning raw material formulas or technological parameters including the kind and content of rare‐earth luminescent material, polymer, transparent inorganic pigment, and draw ratio, had different emission spectra when excited...

The rare-earth strontium aluminate phosphor with stable physical and luminescent performances is a suitable rare-earth luminescent material for spectrum-fingerprint anti-counterfeiting fiber. In order to promote further the development of variety and the improvement of anti-counterfeiting effects of spectrum-fingerprint fiber, in this research, several kinds of rare-earth strontium aluminates and spectrum-fingerprint anti-counterfeiting fiber were prepared by solid-state reaction and special spinning technique, respectively. The effects upon manufacturing elements of strontium aluminate including calcining temperature, Al/Sr ratios, the addition of H3BO3, Eu2+ and Dy3+ and external environmental factors of applications such as fiber-forming polymer on emission spectral characteristics were investigated systematically in the anti-counterfeiting application. The results showed that with the increase in the calcining temperature, the amounts of H3BO3 doping and the concentration of Eu2+ and Dy3+, the emission intensity of rare-earth strontium aluminate increased and reached to the peak at a certain point at start, and then decreased gradually beyond this point. Al/Sr molar ratios influenced not only the intensity but also the wavelength of emission. Fiber-forming polymer had little effect on the emission wavelength and the shape in the luminescence, but greatly lowered the intensity of emission.

A novel spectrum-fingerprint anti-counterfeiting fiber was developed by using Sr2ZnSi2O7:Eu2+,Dy3+ and polyacrylonitrile (PAN) as main raw materials by wet spinning. The microstructure, phase structure and spectral properties of the fiber were studied by SEM, XRD and Fluorescence spectrophotometer. The results show that the Sr2ZnSi2O7:Eu2+,Dy3+/PAN spectrum-fingerprint anti-counterfeiting fiber has similar luminescence characteristics to those of Sr2ZnSi2O7:Eu2+,Dy3+, the excitation wavelength of which is near 360 nm and the strongest emission peak is 470 nm. Although the addition amounts of luminescent material had no effect on the luminous wavelength of the fiber obviously, it had a great influence on the luminescence intensity of the fiber. Sr2ZnSi2O7:Eu2+,Dy3+/PAN composite fiber keeps the basic characteristics of spectrum-fingerprint anti-counterfeiting fiber and is a new potential anti-counterfeiting fiber with higher anti-counterfeiting force.

In order to find out the light color mixing mechanism of rare earth luminescent materials used in anti-counterfeiting fibers, we prepared three kinds of rare earth luminescent materials according to RGB tri-primary color, and mixed it together to form different mixtures in certain proportion. The phase structures of the luminescent material monomers were measured by x-ray diffractometer. The photochromic properties of the luminescent materials were tested and analyzed by fluorescence spectrophotometer. The results show that the light color mixing was consistent with the blending principle of additive color, but not the same because of the photochromic properties of rare earth luminescent materials, and we explored the reasons in the light wavelength and intensity. It was found that the enhancement of the luminescence intensity of the mixture on account of the superimposing of luminescence.

Activities of defensive enzymes peroxidase (POD), superoxide dismutase (SOD), catalase (CAT), polyphenol oxidase (PPO) and esterase (EST) and their isozymes in pear calli were studied to reveal their role in the defensive response to different fungal infections and to find some clues to enhance their antimicrobial properties. The results confirm the fact that the activities and isozymes of these five enzymes showed differences in response to different fungal infections. After the inoculation of two different fungi for the same calli, its defensive enzymes’ activities changed relatively when compared with those of the control and in Botryosphaeria berengriana f.sp. piricola (BBP)-infected calli, the enzymes’ activities changed more significantly than those of Monilinia fructigena Honcy (MFH). Meanwhile, more new isozymes were induced by BBP infection. These are in agreement with the fact that the BBP-infected calli decay was slower than that of the MFH. These results suggest that enhancing defensive enzymes’ activities and inducing new isozymes may be related to mitigating pathogen-induced oxidative damage which result in the decrease of calli decay, and this implies that antioxidant defense response may be involved in the mechanisms of plant against fungal pathogen. Keywords: Pear callus, fungi infection, defense enzyme, isozyme, biochemical defense mechanism

Potassium permanganate titration and complexometry were used to determine the content of tannin in different growth phase of wild and cultivated Cynomorium songaricum Rupr. The result showed that the content appeared regularly changing and the content in coming-up phase was higher than other phases. The quality in this phase would be better if the tannin was regarded as one of the effective components. The result might provide science foundation for the quality control of Herb Cynomorii.