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VITHM1 mediated green synthesis of silver nanoparticles: Mechanism and biological applications

Mani Abirami, Krishnan Kannabiran

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 542-551 doi: 10.1007/s11705-016-1599-6

Abstract: We present the microbial green synthesis of silver nanoparticles (NPs) by VITHM1 strain (MTCC No. 12465The secondary metabolites in the cell free supernatant of this bacterium when incubated with 1 mmol/L

Keywords： Streptomyces ghanaensis VITHM1     nanoparticles     3D structure     antibacterial activity    

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Application of statistical design for the production of inulinase by

M. DILIPKUMAR, M. RAJASIMMAN, N. RAJAMOHAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 463-470 doi: 10.1007/s11705-011-1112-1

Abstract: A Plackett-Burman design was employed for screening 18 nutrient components for the production of inulinase using sp. and pressmud as the substrate via solid-state fermentation (SSF). From the experiments, three nutrients viz. yeast extract, FeSO ·7H O, and NH NO were found to be the most significant components. Hence these three components were selected and optimized using Response Surface Methodology (RSM). The optimum conditions are: yeast extract 0.00274 g/gds, FeSO ·7H O 0.00011 g/gds and NH NO 0.00772 g/gds. The effect of the substrate concentration and initial moisture content were also studied. A substrate concentration of 12 g and an initial moisture content of 65% are optimum for the maximum production of inulinase (89 U/gds).

Keywords： inulinase     pressmud     Response Surface Methodology (RSM)     streptomyces sp    

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Biosorption of mercury and lead by aqueous

Pratibha SANJENBAM, Kumar SAURAV, Krishnan KANNABIRAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 198-202 doi: 10.1007/s11705-012-1285-2

Abstract: Toxic heavy metals are increasingly accumulating in the environment worldwide and are considered to be life threatening contaminants. The biosorption of mercury and lead by marine actinomycetes isolated from marine sediment collected from the Bay of Bengal coast of Puducherry, India, was evaluated. The maximum tolerance concentration (MTC) of sp. was determined by a well diffusion method and a broth dilution method. The effects of the initial metal ion concentration, the pH and the biomass dosage on the biosorption of mercury and lead ions were investigated. The MTC of the isolate to metals was 200 mg·L for mercury and 1800 mg·L for lead. At neutral pH, the isolate had a maximum biosorption of metal ions of 200 mg·L and 150 mg·L for mercury and lead respectively. Fourier transform infrared (FTIR) absorption spectra showed the chemical interactions between the functional groups in the biomass such as hydroxyl (-OH), amine (-NH ), carboxyl (-COOH) and the metal ions. The isolate was further characterized by molecular taxonomy and identified as a member of the genus Based on the phenotypic and phylogenetic analysis, the strain was classified as a new species of the genus and designated as VITSVK9 sp. (HM137310). A blast search of the 16S rDNA sequence of the strain showed the most similarity (95%) with sp. A515 Ydz-FQ (EU384279). Based on the results, it can be concluded that this marine could be used as a biosorbent for the removal of heavy metal ions from aqueous environments.

Keywords： mercury     lead     biosorption     maximum tolerance concentration     Streptomyces VITSVK9 sp.    

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Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 179-183 doi: 10.1007/s11705-012-1273-6

Abstract: -Poly- -lysine ( -PL) is an -lysine linear homopolymer, which is produced by bacteria belonging to the family and by ergot fungi. However, the production of -PL by the wild bacteria strain is very low, which limits its utilization. In most bacteria including the genus, -lysine is a precursor of -PL and is biosynthesized by the -aspartate pathway. Aspartokinase (Ask) is the first key enzyme in this pathway and is subject to complex regulation such as the feedback inhibition by the end product amino acids. In addition, phosphoenolpyruvate carboxykinase is feedback-regulated by -aspartate. To reduce these feedback inhibitions and to improve -PL productivity, resistant mutants were produced using sulfaguanidine (SG) + glycine+ -lysine+ -3-hydroxynorvaline (AHV) as selective markers. Using the interaction between -PL and the charged dye in the solid culture medium, hundreds of colonies were simultaneously screened in a quick and effective manner. Finally, one -PL-producing strain, L9, was selected. The productivity of this strain during flask fermentation was 0.77 g/L, which was 15% higher than that of the original strain. Moreover, its fermentation performance and genetic characteristics were very stable.

Keywords： -poly-L-lysine     plasma     AHV     Streptomyces diastatochromogenes    

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Analysis of GM（1，1）Model and Its Application in Fire Risk Prediction

Chen Zijin,Wang Fuliang,Lu Shouxiang

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 91-94

Abstract:

Theoretical analysis of grey prediction model GM(1, 1) is present inMonotonicity of predicted value and its variation tendency predicted by GM(1, 1)model is proved.the monotonicity of predicted value and its variation tendency,  applicability criterion of GM(1,1) is brought forward.

Keywords： fire forecast     GM(1     1)     rate of the fire injured    

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Metabolic interventions combined with CTLA-4 and PD-1/PD-L1 blockade for the treatment of tumors: mechanisms

Frontiers of Medicine   Pages 805-822 doi: 10.1007/s11684-023-1025-7

Abstract: To date, immune checkpoint inhibitors (ICIs) of CTLA-4 and PD-1/PD-L1 represent the main class of immunotherapyBlockade of CTLA-4 and PD-1/PD-L1 has shown remarkable efficacy in several specific types of cancers,generalized mechanism of targeting cancer metabolism at three crucial immune checkpoints (CTLA-4, PD-1,and PD-L1) to influence ICB therapy and propose potential combined immunotherapeutic strategies co-targeting

Keywords： CTLA-4     PD-1     PD-L1     immune checkpoint blockade (ICB)     metabolic reprogramming     combined tumor therapeutic    

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geological recognition breakthrough in Liaodong zone, which leading to the discovery of the large oilfield JX1-recognition breakthrough in Liaodong zone, which leading to the discovery of the large oilfield JX1-1

Deng Yunhua

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 13-18

Abstract: According to this guidance, such giant oilfield JX1-1 was discovered with 150 million reserves in the

Keywords： Bohai Liaodong zone     JX1-1     geological recognition     large oilfield    

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Multi-Omics-Guided Discovery of Omicsynins Produced by Streptomyces sp. 1647: Pseudo-Tetrapeptides Article

Hongmin Sun, Xingxing Li, Minghua Chen, Ming Zhong, Yihua Li, Kun Wang, Yu Du, Xin Zhen, Rongmei Gao, Yexiang Wu, Yuanyuan Shi, Liyan Yu, Yongsheng Che, Yuhuan Li, Jian-Dong Jiang, Bin Hong, Shuyi Si

Engineering 2022, Volume 16, Issue 9,   Pages 176-186 doi: 10.1016/j.eng.2021.05.010

Abstract: The fermentation components of Streptomyces sp. 1647 exhibit potent anti-influenza A virus (Finally, 18 pseudo-tetrapeptides with an internal ureido linkage, omicsynins A1–A6, B1–B6Among them, 11 compounds (omicsynins A1, A2, A6, B1–B3, B5, B6, C1, C2, and C6) are new compounds(IC50) of approximately 1 µmol∙L–1 and a selectivity index (SI) rangingintegrating multi-omics data, we discovered a number of novel antiviral pseudo-tetrapeptides produced by Streptomyces

Keywords： Multi-omics     Anti-influenza A virus     Anti-coronavirus     Streptomyces sp. 1647     Pseudo-tetrapeptides    

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Federated unsupervised representation learning Research Article

Fengda ZHANG, Kun KUANG, Long CHEN, Zhaoyang YOU, Tao SHEN, Jun XIAO, Yin ZHANG, Chao WU, Fei WU, Yueting ZHUANG, Xiaolin LI,fdzhang@zju.edu.cn,kunkuang@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 8,   Pages 1181-1193 doi: 10.1631/FITEE.2200268

Abstract: FURL poses two new challenges: (1) data distribution shift (non-independent and identically distributed

Keywords： Federated learning     Unsupervised learning     Representation learning     Contrastive learning    

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Non-equidistant GM(1,1) power model and its application in engineering

Wang Zhengxin,Dang Yaoguo,Liu Sifeng

Strategic Study of CAE 2012, Volume 14, Issue 7,   Pages 98-102

Abstract: text-align: justify;">Aiming at the problem of modeling for non-equidistant sequence, the non-equidistant GM(1,1The results showed that the form of non equidistant GM(1,1) power model was more flexible than the traditionalBoth non equidistant GM(1,1) model and Grey Verhulst model were the special cases of non equidistantGM(1,1) power model.shows modeling accuracy in traditional modeling, which was significantly improved by non equidistant GM(1,1

Keywords： grey system     non-equidistant sequence     GM(1     1) power model     parameter optimization    

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Band-gap tunable (GaxIn1−x)2O3 layer Research Articles

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 10,   Pages 1370-1378 doi: 10.1631/FITEE.2000330

Abstract: Multicomponent oxide (GaIn)O films are prepared on (0001) sapphire substrates to realize a tunable band-gap by technology followed by thermal annealing. The optical properties and band structure evolution over the whole range of compositions in ternary compounds (GaIn)O are investigated in detail. The X-ray diffraction spectra clearly indicate that (GaIn)O films with Ga content varying from 0.11 to 0.55 have both cubic and monoclinic structures, and that for films with Ga content higher than 0.74, only the monoclinic structure appears. The transmittance of all films is greater than 86% in the visible range with sharp absorption edges and clear fringes. In addition, a blue shift of ultraviolet absorption edges from 380 to 250 nm is noted with increasing Ga content, indicating increasing band-gap energy from 3.61 to 4.64 eV. The experimental results lay a foundation for the application of transparent conductive compound (GaIn)O thin films in photoelectric and photovoltaic industry, especially in display, light-emitting diode, and solar cell applications.

Keywords： (GaxIn1−x)2O3薄膜；带隙可调谐；磁控溅射    

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Soluble triggering receptor expressed on myeloid cell-1 (sTREM-1): a potential biomarker for the diagnosis

Changlin Cao, Jingxian Gu, Jingyao Zhang

Frontiers of Medicine 2017, Volume 11, Issue 2,   Pages 169-177 doi: 10.1007/s11684-017-0505-z

Abstract: An example of these biomarkers is triggering receptor expressed on myeloid cell-1 (TREM-1), which isTREM-1 amplifies inflammation by activating the TREM-1/DAP12 pathway.Soluble TREM-1 (sTREM-1) is a special form of TREM-1 that can be directly tested in human body fluidsand well-known biomarker for infectious diseases. sTREM-1 level can be potentially used for the earlyTherefore, sTREM-1 is a feasible biomarker for the targeted therapy and rapid and early diagnosis of

Keywords： soluble triggering receptor expressed on myeloid cells-1     infectious diseases     diagnosis and prognosis    

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Molecular characterization of two suppressor of cytokine signaling 1 genes (

Xue XU,Jiannan ZHANG,Juan LI,Yajun WANG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 1,   Pages 73-83 doi: 10.15302/J-FASE-2015044

Abstract: Suppressor of cytokine signaling 1 (SOCS1) protein can inhibit the signal transduction triggered by someamino acid protein, which shares high amino acid sequence identity (64%–67%) with human and mouse SOCS1.and cSOCS1a.and SOCS1b proteins can negatively regulate GH/PRL signaling.Taken together, these data suggest that both cSOCS1a and cSOCS1b may function as negative regulators

Keywords： chicken     SOCS1a     SOCS1b     growth hormone     prolactin    

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Visual knowledge guided intelligent generation of Chinese seal carving Research Article

Kejun ZHANG, Rui ZHANG, Yehang YIN, Yifei LI, Wenqi WU, Lingyun SUN, Fei WU, Huanghuang DENG, Yunhe PAN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 10,   Pages 1479-1493 doi: 10.1631/FITEE.2100094

Abstract:

We digitally reproduce the process of resource collaboration, design creation, and visual presentation of Chinese art. We develop an intelligent art-generation system (Zhejiang University Intelligent System, http://www.next.zju.edu.cn/seal/; the website of the search and layout system is http://www.next.zju.edu.cn/seal/search_app/) to deal with the difficulty in using a visual knowledge guided approach. The knowledge base in this study is the Qiushi Database, which consists of open datasets of images of seal characters and seal stamps. We propose a seal character generation method based on visual knowledge, guided by the database and expertise. Furthermore, to create the layout of the seal, we propose a deformation algorithm to adjust the seal characters and calculate layout parameters from the database and knowledge to achieve an intelligent structure. Experimental results show that this method and system can effectively deal with the difficulties in the generation of seal carving. Our work provides theoretical and applied references for the rebirth and innovation of art.

Keywords： Seal-carving     Intelligent generation     Deep learning     Parametric modeling     Computational art    

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A review of optically induced rotation Review Article

Qi ZHU, Nan LI, Heming SU, Wenqiang LI, Huizhu HU,huhuizhu2000@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 171-185 doi: 10.1631/FITEE.2000338

Abstract: The optical rotation technique arose in the 1990s. brought an ideal platform for research on the of laser beams. For decades, the optical rotation technique has been widely applied in laboratory optical manipulation and the fields of biology and optofluidics. Recently, it has attracted much attention for its potential in the classical and quantum regimes. In this work, we review the progress of experiments and applications of . First, we introduce the basic exploration of . Then, we cover the development and application of optical rotation induced by orbital , and the spin is presented. Finally, we elaborate on recent applications of the optical rotation technique in high vacuum. As precise optical manipulation in a liquid medium enters its maturity, s in high vacuum open a new path for the high-speed .

Keywords： Optical tweezer     Optically induced rotation     Angular momentum     Micro-rotor    

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Title Author Date Type Operation

VITHM1 mediated green synthesis of silver nanoparticles: Mechanism and biological applications

Mani Abirami, Krishnan Kannabiran

Journal Article

Application of statistical design for the production of inulinase by

M. DILIPKUMAR, M. RAJASIMMAN, N. RAJAMOHAN

Journal Article

Biosorption of mercury and lead by aqueous

Pratibha SANJENBAM, Kumar SAURAV, Krishnan KANNABIRAN

Journal Article

Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Journal Article

Analysis of GM（1，1）Model and Its Application in Fire Risk Prediction

Chen Zijin,Wang Fuliang,Lu Shouxiang

Journal Article

Metabolic interventions combined with CTLA-4 and PD-1/PD-L1 blockade for the treatment of tumors: mechanisms

Journal Article

geological recognition breakthrough in Liaodong zone, which leading to the discovery of the large oilfield JX1-recognition breakthrough in Liaodong zone, which leading to the discovery of the large oilfield JX1-1

Deng Yunhua

Journal Article

Multi-Omics-Guided Discovery of Omicsynins Produced by Streptomyces sp. 1647: Pseudo-Tetrapeptides

Hongmin Sun, Xingxing Li, Minghua Chen, Ming Zhong, Yihua Li, Kun Wang, Yu Du, Xin Zhen, Rongmei Gao, Yexiang Wu, Yuanyuan Shi, Liyan Yu, Yongsheng Che, Yuhuan Li, Jian-Dong Jiang, Bin Hong, Shuyi Si

Journal Article

Federated unsupervised representation learning

Fengda ZHANG, Kun KUANG, Long CHEN, Zhaoyang YOU, Tao SHEN, Jun XIAO, Yin ZHANG, Chao WU, Fei WU, Yueting ZHUANG, Xiaolin LI,fdzhang@zju.edu.cn,kunkuang@zju.edu.cn

Journal Article

Non-equidistant GM(1,1) power model and its application in engineering

Wang Zhengxin,Dang Yaoguo,Liu Sifeng

Journal Article

Band-gap tunable (GaxIn1−x)2O3 layer

Fabi Zhang, Jinyu Sun, Haiou Li, Juan Zhou, Rong Wang, Tangyou Sun, Tao Fu, Gongli Xiao, Qi Li, Xingpeng Liu, Xiuyun Zhang, Daoyou Guo, Xianghu Wang, Zujun Qin,zhangfabi@outlook.com,qinzj@guet.edu.cn

Journal Article

Soluble triggering receptor expressed on myeloid cell-1 (sTREM-1): a potential biomarker for the diagnosis

Changlin Cao, Jingxian Gu, Jingyao Zhang

Journal Article

Molecular characterization of two suppressor of cytokine signaling 1 genes (

Xue XU,Jiannan ZHANG,Juan LI,Yajun WANG

Journal Article

Visual knowledge guided intelligent generation of Chinese seal carving

Kejun ZHANG, Rui ZHANG, Yehang YIN, Yifei LI, Wenqi WU, Lingyun SUN, Fei WU, Huanghuang DENG, Yunhe PAN

Journal Article

A review of optically induced rotation

Qi ZHU, Nan LI, Heming SU, Wenqiang LI, Huizhu HU,huhuizhu2000@zju.edu.cn

Journal Article