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Two New Species of the Genus Candelariella from China and Korea
( Dong Liu ),( Lisong Wang ),( Xin Yu Wang ),( Jae-seoun Hur ) 한국균학회 2019 Mycobiology Vol.47 No.1
Candelariella is a widespread lineage of lichenized ascomycetes with ambiguous relationships among species that have not solved completely. In this study, several specimens belonging to Candelariella were collected from China and South Korea, and the internal transcribed spacer region was generated to confirm the system position of the newly collected specimens. Combined with a morphological examination and phylogenetic analysis, two new areolate species, Candelariella rubrisoli and C. subsquamulosa, are new to science. Detail descriptions of each new species are presented. In addition, C. canadensis is firstly reported from China mainland.
Shujie Zhang,Lisong Fu,Zhaowei Yang,Mengke Jing,Ziwei Zhang,Shijian Xiang,Rui Wang 한국섬유공학회 2021 Fibers and polymers Vol.22 No.4
In view of the problems that traditional woven surgical gowns are prone to cross infection in blocking blood andliquid spillage, cellulose acetate (CA)/polylactic acid (PLA) nonwoven materials were prepared to improve the functionalrequirements of surgical materials in combination with the rapidly developing green fibers. Fiber mixing ratio, fiber webareal weight and water jet pressure were selected to optimize the preparation process of cellulose acetate/polylactic acid (CA/PLA) nonwoven materials with moisture permeability and filtration efficiency. The results showed that the fiber mixing ratiowas 49:51, and the fiber web areal weight was 130 g/m2, and the water jet pressure was 7 MPa. Under this process, moisturepermeability is 5240.86 g/(m2·h), and the filtration efficiency is 38.12 %, which is close to the theoretical value. It shows thatthe response surface method has practical application value, indicating that the response surface method has practicalapplication value, and can provide a theoretical basis for the preparation process parameters of barrier and comfort nonwovensurgical gowns at the same time.
Zhang, Haibin,Zhang, Jing,Wang, Haiyong,Su, Xingyun,Teng, Lisong Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.16
Omega-3 polyunsaturated fatty acids (${\omega}$-3 PUFAs) are essential nutrients for human beings and their potential roles against cancer development and progression have become of wide concern recently. Some studies have suggested that perioperative supplementation with omega-3 fatty acids may have beneficial effects in gastrointestinal cancer patients undergoing surgery, while other researchers reported contrary results. This paper reviews recent research to establish therapeutic effects as well as possible underlying mechanisms of ${\omega}$-3 PUFA actions, and to help explain possible reasons for inconsistent results from different institutions.
The Genus Letrouitia (Letrouitiaceae: Lichenized Ascomycota) New to Cambodia
Shi, Haixia,Qian, Zigang,Wang, Xinyu,Liu, Dong,Zhang, Yanyun,Ye, Xin,Harada, Hiroshi,Wang, Lisong The Korean Society of Mycology 2015 Mycobiology Vol.43 No.2
The genus Letrouitia is newly recorded for Cambodia, including the four species as L. domingensis, L. leprolytoides, L. sayeri, and L. subvulpina. A brief description and illustrations are provided.
Fazal Haq,Haojie Yu,Li Wang,Lisong Teng,Sahid Mehmood,Muhammad Haroon,Bilal-Ul-Amin,Shah Fahad,Md Alim Uddin,Di Shen 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.5
Cigarette industry plays an important role in the economy of the advanced countries. But the cigarette smoke contains toxic chemicals such as phenol which causes various kind of diseases and affect human life. In this paper, we synthesized carboxymethyl starch grafted poly vinyl imidazole (CMS-g-PVIs) by reacting carboxymehtyl starch (CMS) with vinyl imidazole (VI). The structures of the CMS-g-PVIs were investigated by 1H NMR and FT-IR. The crystalline properties of the CMS and CMS-g-PVIs were checked by XRD. The thermal properties of the original CMS and CMS-g-PVIs were investigated by TGA analysis. It was found that the modified starches had high thermal stability due to aromatic imidazole ring. The modified starches also showed more rough and distorted morphology as compared to native CMS. The CMS-g-PVIs were subjected for phenol adsorption and showed adsorption efficiencies of 0.170 g/g, 0.190 g/g, 0.192 g/g and 0.199 g/g for CMS, CMS-g-PVI 1, CMS-g-PVI 2 and CMS-g-PVI 3, respectively. Due to higher grafting ratio, CMS-g-PVI 3 showed good adsorption efficiency of 0.199 g/g for phenol. The obtained results showed that the grafting of vinyl imidazole on CMS can increase the adsorption efficiency of native CMS towards phenol.
Ye Zhang,Shiling Jia,Pan Hongwei,Lijuan Wang,Junjia Bian,Yang Guan,Bohao Li,Huiliang Zhang,Huili Yang,Lisong Dong 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.8
A series of poly(lactic acid) (PLA), poly(butylene adipate-co-terephthalate) (PBAT) and glycidyl methacrylate- grafted poly(ethylene octene) (GPOE) blends and films with different GPOE content were prepared by melt blending and blowing film technique. The effect of GPOE on the rheological behavior, melt strength, crystallization behavior, crystallization morphology, miscibility, mechanical property, phase morphology, thermal stability and water vapor permeability were studied. The addition of GPOE improved melt rheological properties. Results of DSC showed that addition of GPOE encouraged the mobility of PLA molecular chains and enhanced crystalline ability. POM observations revealed that the addition of GPOE made the density of spherulite nucleation increase and the size of crystalline particles decrease. From DMA and SEM analysis, it was demonstrated that PLA/PBAT blend was an immiscible system and GPOE in the blend could improve compatibility between PLA and PBAT. Results of mechanical test showed that the PLA/PBAT/GPOE blends and films obtained had excellent mechanical properties. The elongation at break of 50/30/ 20 w/w/w PLA/PBAT/GPOE blend (477%) was higher by about 2.2 times than that of 70/30/0 w/w/w PLA/PBAT/ GPOE blend (220%). The tensile strength of all the PLA/PBAT/GPOE blends exceeded 31 MPa. The tensile strength reached 32.9MPa (MD) and 22.5MPa (TD), the elongation at break exceeded 210% and tear strength exceeded 140 kN/m for 50/30/20 w/w/w PLA/PBAT/GPOE film. With increasing GPOE content, thermal stability and water vapor barrier property also improved.
Hongwei Pan,Yanping Hao,Yan Zhao,Xianzhong Lang,Ye Zhang,Zhe Wang,Huiliang Zhang,Lisong Dong 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.5
Poly(butylene adipate-co-terephthalate) (PBAT) was blended with poly(propylene carbonate) (PPC) by a twin screw extruder and then the blends were made onto films via the blown film technique. PPC dispersed uniformly in the PBAT matrix, and the glass transition temperature (Tg) of PBAT were decreased with the increasing content of PPC. Wide angle X-ray diffraction confirmed that the crystallite dimension of PBAT was decreased after blending PBAT with the amorphous PPC. The results of mechanical tests indicated that the PBAT/PPC films showed high tensile strength and tear strength. In addition, the PBAT/PPC films showed high carbon dioxide permeability and moderate oxygen and nitrogen permeability. After embedding in soil, the weight loss and mechanical properties analysis demonstrated that the films were remarkably biodegraded. These findings contributed to application of the biodegradable materials, such as design and manufacture polymer packaging.
Li Shuang,Guo Dongyang,Sun Qiang,Zhang Lu,Cui Yun,Liu Min,Ma Xixi,Liu Yiman,Cui Wenyu,Sun Leimin,Teng Lisong,Wang Liangjing,Lin Aifu,Liu Wei,Zhuo Wei,Zhou Tianhua 생화학분자생물학회 2023 Experimental and molecular medicine Vol.55 No.-
Liver metastasis is a major cause of death in gastric cancer patients, but the underlying mechanisms are poorly understood. Through a combination of in vivo screening and transcriptome profiling followed by quantitative RT-PCR and tissue array analyses, we found that mitogen-activated protein kinase 4 (MAPK4) downregulation in gastric cancer tissues from patients is significantly associated with liver metastasis and poor prognosis. The knockdown of MAPK4 in gastric cancer cells promotes liver metastasis in orthotopic mouse models. MAPK4 depletion in gastric cancer cells induces the secretion of macrophage migration inhibitory factor (MIF) to polarize tumor-associated macrophages (TAMs) in orthotopic xenograft tumors. Moreover, TAMs activate epithelial–mesenchymal transition of gastric cancer cells to suppress MAPK4 expression, which further increases MIF secretion to polarize TAMs. Taken together, our results suggest a previously undescribed positive feedback loop between cancer cells and macrophages mediated by MAPK4 silencing that facilitates gastric cancer liver metastasis.