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Aloe barbadensis Miller peptide/polypeptide fraction alleviates inflammation through inhibition of proinflammatory cytokines and mediators in vitro and in rats with Freund’s adjuvant-induced hind paw edema

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Asian Pacific Journal of Tropical biomedicine 2019年第12期9卷 524-530页

作者： Spoorthy N.Babu Ayesha Noor centre for bio separation technology Vellore Institute of TechnologyVelloreIndia

Objective:To evaluate the anti-inflammatory potential of peptide/polypeptide fraction of Aloe vera through in vitro and in vivo ***:The peptide/polypeptide fraction from Aloe vera was obtained through trichloroacetic acid *** anti-inflammatory property of the peptide/polypeptide fraction was tested by protein denaturation,membrane stabilization *** effect of the fraction on RAW 264.7 cell viability was examined by MTT *** nitric oxide level was determined through Griess ***-αand IL-6 levels were estimated using ELISA *** vivo studies were carried out in male Wistar rats through injection of Freund’s adjuvant in the hind *** edema was measured through the Vernier scale and levels of alanine aminotransferase,aspartate transaminase,TNF-α,IL-6,and secretory phospholipase A2 were estimated through their respective kits after fourteen days of *** Pad Prism6 was used for analyzing the ***:The peptide/polypeptide extract inhibited protein denaturation with an IC50 value of(218.9±15.6)μg/m L and stabilized the membrane of red blood cells with an IC50 value of(275.9±19.1)μg/m *** extract showed no changes in cell morphology or cytotoxicity up to the concentration of 20μg/mL in MTT *** peptide/polypeptide fraction markedly reduced the levels of proinflammatory markers and mediators in both in vitro and in vivo ***:The results indicate that the peptide/polypeptide fraction of Aloe vera has antiinflammatory property through inhibition of inflammatory markers and mediators responsible for NF-κB and mitogen-activated protein kinase pathways.

关键词： Aloe vera Peptide/Polypeptide Inflammation Proinflammatory cytokines

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Alginate based encapsulation of polyphenols ofPiper betelleaves:Development,stability,bio-accessibility and biological activities

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Food bioscience 2022年第3期47卷 998-1006页

作者： Ayesha Noor Musa Al Murad A.Jaya Chitra Spoorthy N.Babu S.Govindarajan centre for bio separation technology (CBST) Vellore Institute of Technology (VIT)Vellore632014Tamil NaduIndia

Plant polyphenols have recently gained attention in nutraceutical and pharmaceutical industries due to their various therapeutic ***,the polyphenols are prone to oxidation,unstable towards heat,light,pH and their unpleasant taste also limits their *** usage of encapsulated polyphenols can alleviate these drawbacks and hence,efficient encapsulation methods have been *** present study focused on the synthesis of microspheres of Piper betle polyphenols by extrusion method using alginate and assesses the impact of alginate encapsulation on stability,bioavailability and therapeutic *** of Piper betle were studied for their stability,yield,size,characterized by using SEM for surface morphology and FTIR and evaluated for their bioavailability using in vitro simulated gastrointestinal digestion and therapeutic properties for a period of 24 *** results showed that encapsulation was successful using extrusion technique and the stability was improved as it protected the polyphenols and antioxidant from degradation for a period of 24 *** addition,bioavailability was also increased in small intestine and the antioxidant and antidiabetic properties were better retained after ***,this study showed that encapsulation of polyphenols of Piper betle leaves with alginate improved stability and can be a promising technique for food supplementation/nutraceutical with natural antioxidants.

关键词： Polyphenols Stability Encapsulation Alginate Antioxidant Antidiabetic

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Hydrochloric Acid Recovery from Rare Earth Chloride Solutions by Vacuum Membrane Distillation (1) Study on the Possibility

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Journal of Rare Earths 2003年第S1期21卷 78-82页

作者：唐建军周康根赵方辉李荣光张启修 New Materials and bio-technology Key Laboratory Research Institute of Tsinghua University in Shenzhen Metallurgical separation Science and Engineering Laboratory Central South University

The equilibrium between the gas-liquid phases of the system of HCl-RECl_3-H_2O was analyzed,and the possibility of hydrochloric acid recovery from rare earth chloride solutions by vacuum membrane distillation (VMD) was experimentally studied in the laboratory scale. The results indicate that increasing initial concentrations of both hydrochloric acid and rare earth increase recovery ratio of hydrochloric acid,and recovery ratio of 80% can be achieved. Concentrated multiple of rare earth shows great influence on recovery ratio,leakage ratio of rare earth is less than 2% generally,and pure acid can be acquired in the permeate side. The two factors,namely flux and leakage ratio,which may determine the future use of VMD were also discussed.

关键词： vacuum membrane distillation hydrochloric acid rare earths

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A Rapid Adaptation Approach for Dynamic Air‑Writing Recognition Using Wearable Wristbands with Self‑Supervised Contrastive Learning

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Nano-Micro Letters 2025年第2期17卷 417-431页

作者： Yunjian Guo Kunpeng Li Wei Yue Nam‑Young Kim Yang Li Guozhen Shen Jong‑Chul Lee Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Radio Frequency Integrated Circuit(RFIC)bio centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Kwangwoon UniversitySeoul 01897South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China State Key Laboratory of Integrated Chips and Systems Fudan UniversityShanghai 200433People’s Republic of China School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Wearable wristband systems leverage deep learning to revolutionize hand gesture recognition in daily *** existing approaches that often focus on static gestures and require extensive labeled data,the proposed wearable wristband with selfsupervised contrastive learning excels at dynamic motion tracking and adapts rapidly across multiple *** features a four-channel sensing array composed of an ionic hydrogel with hierarchical microcone structures and ultrathin flexible electrodes,resulting in high-sensitivity capacitance *** wireless transmission from a Wi-Fi module,the proposed algorithm learns latent features from the unlabeled signals of random wrist ***,only few-shot labeled data are sufficient for fine-tuning the model,enabling rapid adaptation to various *** system achieves a high accuracy of 94.9%in different scenarios,including the prediction of eight-direction commands,and air-writing of all numbers and *** proposed method facilitates smooth transitions between multiple tasks without the need for modifying the structure or undergoing extensive task-specific *** utility has been further extended to enhance human–machine interaction over digital platforms,such as game controls,calculators,and three-language login systems,offering users a natural and intuitive way of communication.

关键词： Wearable wristband Self-supervised contrastive learning Dynamic gesture Air-writing Human-machine interaction

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Oxalic acid cross-linked sodium alginate and carboxymethyl chitosan hydrogel membrane for separation of dye/NaCl at high NaCl concentration

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Chinese Chemical Letters 2022年第4期33卷 1951-1955页

作者： Wenbin Xie Kongyin Zhao Lijing Xu Ningning Gao Hui Zhao Zelong Gong Linan Yu Jun Jiang State Key Laboratory of separation Membranes and Membrane Processes/National centre for International Joint Research on separation Membranes Tiangong UniversityTianjin 300387China SINOPEC Research Institute of Petroleum Processing Beijing 100083China

Dye desalination is a challenge in the treatment of textile wastewater with high salt concentration. It is imperative to develop salt resistance membrane that is from sustainable materials to effectively treat dye/salt mixtures. And most polymer membrane materials are non-renewable petrochemical *** this paper, a green hydrogel membrane(CMCS-OA-Na Alg) was prepared by non-metallic ions of oxalic acid(OA) cross-linking of two natural macromolecules of sodium alginate(Na Alg) and carboxymethyl chitosan(CMCS). The membrane showed excellent anti-swelling at high salt concentration(swelling rate less than 8.0% in 10.0 wt% Na Cl solution) and good anti-fouling performance. The membrane exhibited a rejection higher than 95.0% for dyes(bright blue, direct black, direct red, and Congo red) and lower than7.0% for Na Cl, which can achieve better dye/Na Cl separation performance. This study provides a promising membrane material for high salt textile wastewater treatment only using water and carbohydrates as raw materials without any organic solvents.

关键词： Hydrogel filtration membranes Oxalic acid Sodium alginate High salt wastewater Salt resistance

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Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3

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Journal of Rare Earths 2020年第1期38卷 59-69页

作者： Jie Cheng Liyun Song Rui Wu Shining Li Yanming Sun Hongtai Zhu Wenge Qiu Hong He Key Laboratory of Beijing on Regional Air Pollution Control And Beijing Key Laboratory for Green Catalysis and SeparationBeijing University of TechnologyBeijing 100124China Collaborative Innovation centre of Electric Vehicles in Beijing Beijing 100081China

In this work we prepared several CeO2-TiO2 catalysts for the NH3-SCR reactionusing co-precipitation with assistance of microwave *** catalytic NH3-SCR activities over CeO2-TiO2 catalysts at low temperatures are largely enhanced by the treatment of microwave irradiation,the operation temperature window is also *** better understanding the promotion mechanism,the catalyst prepared by conventional co-precipitation with and without microwave irradiation treatment was characterized with H2-TPR,NH3-TPD,XPS,XRD and *** irradiation treatment accelerates the crystallite rate of CeO2-TiO2 catalysts,and greatly enlarges their surface area by adjusting their *** resistance to SO2 and H2O is also improved via regulating the hierarchical pore structure by the microwave *** irradiation treatment can also improve the redox property and increase the acid sites over the catalyst *** result of in situ DRIFTS suggests that the microwave irradiation treatment generates more Br?nsted acid sites on CeO2-TiO2-2 h catalyst,helpful in SCR *** results show that after microwave irradiation on the CeO2-TiO2 catalysts,the surface demonstrates an elevated concentration of chemisorbed oxygen,consequently leading to better oxidation of NO to ***,the molar ratio of Ce3+/Ce4+has been elevated after being treated by microwave irradiation,a vital factor in enhancing the NH3-SCR activities.

关键词： SCR catalyst NH3-SCR Low temperature CeO2-TiO2 Microwave irradiation Rare earths

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On the complementarity of DNA barcoding and morphology to distinguish benign endemic insects from possible pests: the case of Dirioxa pornia and the tribe Acanthonevrini (Diptera: lephritidae: Phytalmiinae) in Australia

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Insect Science 2021年第1期28卷 261-270页

作者： Francesco Martoni Isabel Valenzuela Mark J.Blacket Agriculture Victoria Research Agri Bio Centre for AgriBioscienceBundooraVictoriaAustralia

Fruit flies are considered economically important insects due to some species being agricultural ***,morphological identification of fruit fly adults and larvae can be difficult requiring a high level of taxonomic expertise,with misidentifications causing problematic false-positiv/negative *** destructive molecular techniques can assist with the identification process,these often cannot be applied where it is mandatory to retain a voucher reference *** this work,we non-destructively(and partialdestructively)processed larvae and adults mostly belonging to the species Dirioxa pornia(Walker,1849),of the poorly studied nonpest fruit fly tribe Acanthonevrini(Tephritidae)from Australia,to enable molecular identifications whilst retaining morphological *** retaining the morphological features of specimens,we confirmed useful characters for genus/species-level identification,contributing to improved accuracy for future diagnostics using both molecular and morphological *** provide DNA barcode information for three species of Acanthonevrini known from Australia,which prior to our study was only available for a single species,*** specimen examinations provide new distribution records for three nonpest species:Acanthonevroides variegatus Permkam and Hancock,1995 in South Australia,Acanthonevroides basalis (Walker,1853)and *** in Victoria,Australia;as well as new host plant records for ***,from kangaroo apple,apricot and loquat.

关键词： biodiversity biosecurity COI fruit flies Agriculture

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Effects of Hydrothermal Environment on the Deformation of the Thin Bamboo Bundle Veneer Laminated Composites

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Journal of Renewable Materials 2023年第3期11卷 1499-1511页

作者： Ge Wang Linbi Chen Haiying Zhou Shanyu Han Fuming Chen Department of bio-Materials Key Laboratory of Bamboo and Rattan Science and Technology of the State Forestry AdministrationInternational Centre for Bamboo and RattanBeijing100102China

To overcome warping in thin bamboo bundle veneer laminated composites(TBLC),their hydrothermal deformation characteristics were systematically investigated in this *** was found that TBLCs accelerated the release of internal stress in the thickness direction in a hydrothermal environment,which increased their *** showed increased warpage in the width and diagonal directions upon increasing the *** warpage of Type E increased by 155.88%and 66.67%in the width and diagonal directions,respectively,when the temperature increased from 25C to 100*** symmetrical TBLC with cross-lay-up and odd layers displayed better hydrothermal *** revealed that the deformation of the TBLCs could be regulated under the synergistic effect of water and *** results provide a scientific basis for improving the uniformity of bamboo bundle composite materials and for developing thin bamboo bundle fiber composite materials with designable structures and controllable performance.

关键词： Thin bamboo bundle veneer laminated composites deformation hydrothermal environment lay-up structure

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Perforated nitrogen-rich graphene-like carbon nanolayers supported Cu-In catalyst for boosting CO_(2) electroreduction to CO

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Journal of Energy Chemistry 2022年第12期75卷 383-390,I0010页

作者： Xinxin Zhang Yuxiao Zhu Ziyong Liu Fuli Li Wei Zhou Zichao Dong Jingxin Fan Licheng Liu Chunhua Du Laboratory of Reaction and separation technology Qingdao Agricultural UniversityQingdao 266109ShandongChina CAS Key Laboratory of bio-based Materials Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101ShandongChina CenterTech Tianjin Chemical Research and Design Institute Co. Ltd.Tianjin 300131China

The combination of a powerful CO_(2)-enriching carrier and robust active component provides a new idea for the construction of efficient catalysts for electrocatalytic CO_(2)***,novel perforated nitrogen-rich graphene-like carbon nanolayers(PNGC)are prepared from biomass derivatives,which promotes the oriented deposition of In-doped Cu_(2)(OH)_(3)(NO_(3))nanosheet patches.A robust Cu-In/PNGC composite catalyst is then obtained via simple in-situ electrochemical ***,CuIn/PNGC exhibits a CO Faradaic efficiency(FECO)of 91.3%and a remarkable CO partial current density(jCO)of 136.4 m A cm^(-2)at a moderate overpotential of 0.59 V for electrocatalytic CO_(2)reduction reaction(CO_(2)RR).DFT calculations and experimental studies indicate that the strong carrier effect of PNGC makes PNGC carried Cu-In nanosheets improved the adsorption capacity of CO_(2)gas,reconfigured electronic structure,and reduced free energy of key intermediate formation,thereby the CO_(2)activation and conversion are promoted.

关键词： CO_(2)electroreduction CO Cu-In/PNGC Patch Perforated nitrogen-rich graphene-like carbon nanolayers

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Survivability of freeze-dried probiotic Pediococcus pentosaceus strains GS4,GS17 and Lactobacillus gasseri(ATCC 19992)during storage with commonly used pharmaceutical excipients within a period of 120 days

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Asian Pacific Journal of Tropical biomedicine 2017年第10期7卷 921-929页

作者： Mayur Bagad Ram Pande Vinay Dubey Asit Ranjan Ghosh centre for Infectious Disease and Control Microbial Molecular Biology LaboratorySchool of Bio Science and Technology VIT UniversityVellore 632014India

Objective: To examine the survivability and stability of probiotic strains in presence and absence of pharmaceutical excipients for a long period of time at(4 ± 1)℃.Methods: The survival rates of probiotic strains, Pediococcus pentosaceus GS4(MTCC12683)(NCBI HM044322), GS17(NCBI KJ608061) and Lactobacillus gasseri(ATCC 19992), were evaluated. Probiotic strains were lyophilized individually and in combination of excipients(sorbitol, ascorbic acid, fructose and skim milk). The preparation was monitored for 120 d storing at(4 ± 1)℃. During storage, all the preparations were evaluated for viability and stability of probiotic properties like lactic acid production, antimicrobial effect, water activity, and adherence to epithelial ***: Sorbitol, ascorbic acid and skim milk favoured the viability of freeze-dried cells and sustained probiotic properties during storage. Without excipients(control group),strains showed percentage of survivability not more than 70% while strains with excipients survived for 73%–93% for a long period of ***: Commonly used excipients can be considered as a vehicle for delivering active principle in probiotic formulation and for sustaining the viability and stability of probiotic strains for a period of 120 d.

关键词： Viability Probiotics Pediococcus pentosaceus GS4 P.pentosaceus GS17 Lactobacillus gasseri Formulation

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