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Lin Z.,Zhejiang Sci-Tech University | Yu N.,Zhejiang Sci-Tech University | Zhou Y.,China National Silk Museum | Zhou Y.,Key Scientific Research Base of Textile Conservation | And 6 more authors.
Textile Research Journal | Year: 2017

To conduct research into the long-term preservation of fragile wool textile relics unearthed at archeological sites, it is essential to simulate the aging process and evaluate the factors affecting the degradation of wool fabrics. An accelerated aging method is therefore proposed to simulate the degradation process using either CaCl2 or NaCl in conjunction with hydrothermal treatment. The accelerated aging of wool fabrics was investigated by color measurement, scanning electron microscopy, cross-sectional observation, attenuated total reflection Fourier transform infrared spectroscopy, and amino acid analysis. Wool fabrics subjected to NaCl-hydrothermal or CaCl2-hydrothermal treatment exhibit an apparent yellowing with increasing treatment time. Fluctuations of cysteic acid and cystine dioxide content are shown to be the most prominent, and a distinct conversion of α-helices into β-sheets is observed with increasing treatment time. These results indicate that the effect of Ca2+ was greater than Na+ in promoting the degradation of disulfide groups in the hydrothermal degradation process. © 2016, © The Author(s) 2016.


Xie J.,Zhejiang Sci-Tech University | Jiang X.Q.,Zhejiang Sci-Tech University | Ye Y.Y.,Zhejiang Sci-Tech University | Teng H.K.,Zhejiang Sci-Tech University | And 3 more authors.
Advanced Materials Research | Year: 2014

This work was designed to evaluate the antibacterial activity of one novel leather material treated with bactericides. The growth of bacteria species such as colibacillus and staphylococcus aureus were measured by the diameter of inhibition zone. The results showed that glutaraldehyde exhibits an antibacterial activity against colibacillus and staphylococcus aureus. Besides, it also is testified that 2-Octyl-4-isothiazolin-3-one was an excellent bactericidal agents to staphylococcus aureus, instead of colibacillus. The concentrations of tea saponin and sodium above 0.05mg/L, the growth of bacteria was restrained. In addition, compared with single of bactericidal agents, the mixture of two bactericidal agents showed much better antibacterial activity. Among these antimicrobial agents, the mxture of 2-Octyl-4-isothiazolin-3-one and glutaraldehyde were of great potential in application. © (2014) Trans Tech Publications, Switzerland.


Liu M.M.,Zhejiang Sci-Tech University | Zheng Y.W.,Zhejiang Sci-Tech University | Wang B.,Key Scientific Research Base of Textile Conservation | Zhou Y.,Key Scientific Research Base of Textile Conservation | Hu Z.W.,Zhejiang University of Science and Technology
Advanced Materials Research | Year: 2014

In this study, an indirect ELISA was applied for specific identification of gelatin and collagen I in the binders of ancient Chinese textiles. The process consists of protein extraction and incubation, blocking, primary antibody incubation, secondary antibody incubation and coloration. To guarantee stringency, both artificially aged samples and archaeological samples were well prepared before testing. The results indicated that all the samples behaved positive for ovalbumin while negative for collagen I. This is the first time ELISA was applied in the detecting of binders of ancient textiles. Compared with other detecting methods, ELISA was sensitive, simple and specific. With such superior features, ELISA will become a frequently-used technique in the detection of proteins in ancient materials. © (2014) Trans Tech Publications, Switzerland.


Yao Q.,Zhejiang Sci-Tech University | Yu N.,Zhejiang Sci-Tech University | Xu P.,Zhejiang Sci-Tech University | Zhou Y.,Key Scientific Research Base of Textile Conservation | And 3 more authors.
Applied Mechanics and Materials | Year: 2013

The humidity control composite paperboard with excellent humidity control performance was prepared, comprising sodium chloride, anhydrous potassium carbonate, diatomite, pyrrolidone carboxylic acid-Na, carboxymethyl cellulose and self-made humidity control material. The moisture absorption and desorption rate of the sample are about 0.6231 (g/7h•g-1) and 0.5852 (g/7h•g-1), respectively. The equilibrium humidity fluctuates from 52% to 56% and moisture capacity is 31%. Moreover, it can reach to the equilibrium levels within 60 minutes. Above all, it shows outstanding humidity control properties, meeting the requirement of micro-environment particularly for something sensitive to humidity such as cultural relic. © (2013) Trans Tech Publications, Switzerland.


Zhao F.,China National Silk Museum | Zhao F.,Jinzhou Conservation Center for Cultural Heritage | Zhao F.,Key Scientific Research Base of Textile Conservation | Zhao F.,Donghua University | And 14 more authors.
History of Mechanism and Machine Science | Year: 2016

The development of technology is tightly interlinked to the introduction of the weaving loom, and in particular with the complex pattern loom. Probably, the most important testimony of this link is provided by the Chinese character ji with its various meanings including intelligence, human excellence, crossbow-trigger and weaving loom. Furthermore, the technological principles behind the pattern loom have been the key-inspiration behind very important breakthrough technological inventions throughout human history as e.g. the French Jacquard loom, telegram, then computers. However, the archaeological evidence has been missing. A new exceptional Han dynasty burial in Laoguanshan, Chengdu, southwest China in 2013, has revealed four models of wooden pattern looms dating back to 2nd century BCE, resulting in the first evidence of the use of pattern loom in the world. Hence, these finds provide the earliest existent archaeological material which is technological speaking the point of departure for our present highly technological world. We have reconstructed the finds in order to identify the exact technological principles behind these pattern looms. Our results reveal that there are two systems for the movement of warp and weft resulting in a highly complex multi-shaft patterning principle with two different power transmission systems. © Springer International Publishing Switzerland 2016.


Liu M.,Zhejiang Sci-Tech University | Xie J.,Zhejiang Sci-Tech University | Zheng H.,Key Scientific Research Base of Textile Conservation | Zhou Y.,Key Scientific Research Base of Textile Conservation | And 2 more authors.
Analytical Sciences | Year: 2015

The identification of ancient silk is of great importance in both archaeology and academia. In the present work, a specific antibody having the characteristics of low cost, easy operation and extensive applicability was developed directly through immunizing rabbits with complete antigen (silk fibroin, SF). Then, antibody-based immunoassays, i.e. enzyme-linked immunosorbent assay (ELISA) and immuno-fluorescence microscopy (IFM), were established and conducted in tandem to identify the corresponding protein in ancient silks. The anti-SF antibody exhibits high sensitivity and specificity for the identification of modern and ancient silks. The detection limit of the ELISA method is about 0.1 ng/mL, and no cross-reactions with other possible interference antigens have been noted. IFM makes it possible to localize target proteins in archaeological samples, and also ensure the reliability of the ELISA results. Based on these advantages, immunological techniques have the potential to become powerful analytical tools at archaeological sites and conservation science laboratories. © 2016 The Japan Society for Analytical Chemistry.


Huang D.,Zhejiang Sci-Tech University | Peng Z.,Zhejiang Sci-Tech University | Hu Z.,Zhejiang Sci-Tech University | Zhang S.,Zhejiang Sci-Tech University | And 6 more authors.
Reactive and Functional Polymers | Year: 2013

A new consolidation system for fragile ancient silk fabrics by fibroin with the support of ethylene glycol diglycidyl ether (EGDE) was developed in our group. To figure out the mechanism and the effect of EGDE in the system, aged silk fabrics treated with EGDE have been investigated in this paper. Silk fabrics were artificially aged in sodium hydroxide aqueous solution to simulate fragile ancient silk fabrics. The aged silk fabrics were treated with EGDE aqueous solution by spraying. The resultant silk fabrics were systematically investigated by tensile test, thermogravimetric analysis (TGA), thermal ageing resistance test, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), solid-state 13C cross polarization/magic angle spinning nuclear magnet resonance (13C CP/MAS NMR) and amino acid analysis (AAA), etc. Results indicate that the breaking stress and strain of the treated silk fabrics increase more than four and two times, respectively. The maximum decomposition temperature of the treated silk fabrics is much higher than that of the aged silk fabrics. The treated silk fabrics exhibit a better thermal ageing resistance than the aged silk fabrics. Chemical interactions occurred between EGDE and silk fibroin molecules in silk fabrics. This work provides useful information for the protection of historic silk fabrics. © 2012 Elsevier Ltd. All rights reserved.


Liu M.,Zhejiang Sci-Tech University | Li Y.,Zhejiang Sci-Tech University | Zheng H.,Key Scientific Research Base of Textile Conservation | Zhou Y.,Key Scientific Research Base of Textile Conservation | And 2 more authors.
Analytical Methods | Year: 2015

The origin of silks remains one of the most puzzling mysteries. However, the on-site identification of ancient silks usually becomes particularly difficult after thousands of years due to degradation and sample contamination. In this paper, a portable immunochromatographic strip (ICS) technique using colloidal gold-labelled polyclonal antibody was well designed and developed. This technique requires only 10 min to complete the qualitative detection of silks. The strip exhibits good sensitivity, specificity and thermal stability. The detection limit of the strip is 1.5 μg mL-1, and no cross-reactions with other possible interfering antigens were noted. Moreover, the strip can maintain the effectiveness after being treated at 60 °C for 30 days. These characteristics make the ICS assay especially suitable for the on-site detection in the archaeological field. This journal is © The Royal Society of Chemistry.


Cao L.,Zhejiang Sci-Tech University | Yang H.,Zhejiang Sci-Tech University | Zhou Y.,China National Silk Museum | Zhou Y.,Key Scientific Research Base of Textile Conservation | And 7 more authors.
Energy and Buildings | Year: 2013

A new process for preparation of porous acrylamide resins has been proposed. The process is that Al(OH)3 obtained from the reaction of aluminum chloride and sodium bicarbonate in solution is cross-linked with acrylamide copolymer in copolymerization and then dehydrated and converted into γ-Al2O3 at 142 C. Therefore, lots of pores are generated in the acrylamide copolymer by means of water vapor released from the dehydration of Al(OH)3. The mesoporous structure of the copolymer is demonstrated by the scanning electronic microscope (SEM) and isothermal adsorption of nitrogen. Results show that one of the prepared porous acrylamide copolymers with a specific surface area (ABET) of 113.03 m 2 g-1 and an average pore size of 15.82 nm possesses excellent humidity control properties. It can maintain the relative humidity (RH) between 50% and 60% in 3.5 h at 25 C and can present a maximum moisture content of 134% of its own weight. It also shows good buffering effect to RH fluctuation at changed ambient temperatures. This work provides useful information for preparing humidity control materials for museum, gallery display cases and artifacts transportation in particular. © 2013 Elsevier B.V. All rights reserved.


Liu Y.,Zhejiang Sci-Tech University | Li Y.,Zhejiang Sci-Tech University | Chang R.,Zhejiang Sci-Tech University | Zheng H.,Zhejiang Sci-Tech University | And 4 more authors.
Analytical Sciences | Year: 2016

Proteinaceous materials, such as ovabumin and collagen, were commonly used as binding media, and as adhesives and protective coatings. However, the identification of ancient proteinaceous binders is a great challenge for archaeologists, due to their limited sample size, complex combinations of various ingredients and reduced availability of the binder during the process of protein degradation. In this paper, an enzyme-linked immunosorbent assay (ELISA) provides to be a particularly promising method for the detection of proteinaceous binding materials in ancient relics. The present work focused on the specific identification of proteins in archaeological binders, which was brushed on the Tripitaka. Two samples, the adhesion area (S1) and the ink area (S2), were tested by ELISA. The results showed that both S1 and S2 reacted positively when treated with an anti-collagen-I antibody. It proved the existence of proteinaceous binders in Ancient Tripitaka, and the percentage of collagen in S1 and S2 was 61.44 and 15.4%, respectively. Compared with other conventional techniques, ELISA has advantages of high specificity, sensitivity, rapidity and low cost, making it especially suitable for the protein detection in the archaeological field. © The Japan Society for Analytical Chemistry.

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