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A Simplified Analytical Procedure for Simultaneous Determination of Alkylphenol Ethoxylates and Brominated Flame Retardants in Fish Tissue Samples from Vaal River,South Africa

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American Journal of Analytical Chemistry 2015年第5期6卷 422-428页

作者： Tlou B.Chokwe Jonathan O.Okonkwo Linda L.Sibali Elmari Kruger Hein du Preez reveck hariram Esper J.Ncube Scientific Services Rand WaterVereenigingSouth Africa Department of Environmental Water and Earth SciencesTshwane University of TechnologyPretoriaSouth Africa Directorate of Research and Innovation Tshwane University of TechnologyPretoriaSouth Africa

In this study, the concentration of alkylphenol ethoxylates (APEs) and brominated flame retardants (BFRs) were determined in fish samples, Labeo umbratus and Carp, collected from the Vaal River in South Africa. Ultrasonic-assisted extraction technique was used to extract the organic contaminants from fish samples, and the resulting extract was purified by sulphuric acid lipid removal followed by Strata X-cartridge SPE clean-up. The APEs and BFRs were derivatized using heptafluorobutyric anhydride before analysis with GC-MS. In both types of fish samples, lower oligomers of APEs were more abundant than the higher oligomers, while HBCD, BDE99 and PBB101 were the dominant BFRs. The concentrations of these pollutants ranged from 1.061 ng/g lipids (t-BP) in Labeo umbratus to 11.860 ng/g lipids (HBCD) in Carp.

关键词： Alkylphenol Ethoxylates Brominated Flame Retardants Fish Sample Heptafluorobutyric Anhydride Derivatization Vaal River South Africa

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Modification of tamarind fruit shell powder with in situ generated copper nanoparticles by single step hydrothermal method

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Journal of Bioresources and Bioproducts 2020年第3期5卷 180-185页

作者： B.Ashok N.hariram Suchart Siengchin A.Varada Rajulu Department of Physics University College of EngineeringOsmania UniversityHyderabad-500007Telangana StateIndia Department of Biotechnology Kalasalingam UniversityKrishnankoil-626126Tamil NaduIndia Department of Mechanical and Process Engineering the Sirindhorn International Thai-German Graduate School of Engineering(TGGS)King Mongkut’s University of Technology North BangkokBangkokThailand Center for Composite Materials International Research CenterKalasalingam UniversityKrishnankoil-626126Tamil NaduIndia

Tamarind fruit shell powder(TFSP)with particle size of<50μm(obtained from cleaned tamarind fruit shells)was modified with in situ generated copper nanoparticles(CuNPs)by simple one step hydrothermal *** modified TFSP was characterized by scanning electron microscope(SEM),Fourier transform infrared(FT-IR)spectroscopy,X-ray diffraction(XRD),thermogravi-metric analysis(TGA)and antibacterial *** generated stable CuNPs on the surface of the modified TFSP were spherical in shape with an average size of 88 *** FT-IR spectroscopy analysis indicated the involvement of the functional groups of the TFSP in the generation and stabilization of the *** XRD analysis indicated the presence of both CuNPs and Cu 2 O nanoparticles in the modified *** thermal analysis indicated the presence of 5.6 wt%of copper nanoparticles as calculated from the difference of residual char content between the un-modified and modified *** modified TFSP with in situ generated CuNPs exhibited obvious antibacterial activity against both the Gram negative and Gram positive bacteria and hence can be considered as low cost filler in the preparation of antibacterial polymer hybrid nanocomposites for packaging and medical applications.

关键词： Tamarind fruit shell powder Modification In situ generation Copper nanoparticle Antibacterial activity

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Recent Advances in Nano‑Enabled Seed Treatment Strategies for Sustainable Agriculture:Challenges,Risk Assessment,and Future Perspectives

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Nano-Micro Letters 2023年第4期15卷 153-189页

作者： Amruta Shelar Shivraj hariram Nile Ajay Vikram Singh Dirk Rothenstein Joachim Bill Jianbo Xiao Manohar Chaskar Guoyin Kai Rajendra Patil Department of Technology Savitribai Phule Pune UniversityPuneMaharashtra 411007India Zhejiang Provincial International S&T Cooperation Base for Active Ingredients of Medicinal and Edible Plants and Health School of Pharmaceutical ScienceJinhua AcademyZhejiang Chinese Medical UniversityHangzhou 310053ZhejiangPeople’s Republic of China Department of Chemical and Product Safety German Federal Institute for Risk Assessment(BfR)Max‑Dohrn‑Strasse10589 BerlinGermany Institute for Materials Science University of Stuttgart70569 StuttgartGermany International Research Center for Food Nutrition and Safety Jiangsu UniversityZhenjiang 212013People’s Republic of China Faculty of Science and Technology Savitribai Phule Pune UniversityPuneMaharashtra 411007India Department of Biotechnology Savitribai Phule Pune UniversityPuneMaharashtra 411007India

Agro seeds are vulnerable to environmental stressors,adversely affecting seed vigor,crop growth,and crop *** agrochemical-based seed treatments enhance seed germination,but they can also cause damage to the environment;therefore,sustainable technologies such as nano-based agrochemicals are urgently *** can reduce the dose-dependent toxicity of seed treatment,thereby improving seed viability and ensuring the controlled release of nanoagrochemical active ingredients However,the applications of nanoagrochemicals to plants in the field raise concerns about nanomaterial safety,exposure levels,and toxicological implications to the environment and human *** the present comprehensive review,the development,scope,challenges,and risk assessments of nanoagrochemicals on seed treatment are ***,the implementation obstacles for nanoagrochemicals use in seed treatments,their commercialization potential,and the need for policy regulations to assess possible risks are also *** on our knowledge,this is the first time that we have presented legendary literature to readers in order to help them gain a deeper understanding of upcoming nanotechnologies that may enable the development of future generation seed treatment agrochemical formulations,their scope,and potential risks associated with seed treatment.

关键词： Agro seeds Environmental seed stressors Nanoagrochemicals Toxicological implications Risk regulations

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Nanotechnologies in Food Science:Applications,Recent Trends,and Future Perspectives

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Nano-Micro Letters 2020年第3期12卷 218-251页

作者： Shivraj hariram Nile Venkidasamy Baskar Dhivya Selvaraj Arti Nile Jianbo Xiao Guoyin Kai Laboratory of Medicinal Plant Biotechnology College of PharmacyZhejiang Chinese Medical UniversityHangzhou 310053ZhejiangPeople’s Republic of China Plant Genetic Engineering Laboratory Department of BiotechnologyBharathiar UniversityCoimbatoreTamil NaduIndia Department of Bioresources and Food Science Sanghuh College of Life SciencesKonkuk UniversitySeoul 05029Republic of Korea Institute of Chinese Medical Sciences State Key Laboratory of Quality Control in Chinese MedicineUniversity of MacaoMacaoMacao SARPeople’s Republic of China

Nanotechnology is a key advanced technology enabling contribution,development,and sustainable impact on food,medicine,and agriculture *** have potential to lead qualitative and quantitative production of healthier,safer,and high-quality functional foods which are perishable or semi-perishable in *** are superior than conventional food processing technologies with increased shelf life of food products,preventing contamination,and production of enhanced food *** comprehensive review on nanotechnologies for functional food development describes the current trends and future perspectives of advanced nanomaterials in food sector considering processing,packaging,security,and *** of nanotechnologies enhance the food bioavailability,taste,texture,and consistency,achieved through modification of particle size,possible cluster formation,and surface charge of food *** addition,the nanodelivery-mediated nutraceuticals,synergistic action of nanomaterials in food protection,and the application of nanosensors in smart food packaging for monitoring the quality of the stored foods and the common methods employed for assessing the impact of nanomaterials in biological systems are also discussed.

关键词： Nanomaterials Functional food Food processing Nanodelivery Bioavailability

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Preparation and properties of cellulose nanocomposite fabrics with in situ generated silver nanoparticles by bioreduction method

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Journal of Bioresources and Bioproducts 2021年第1期6卷 75-81页

作者： Battu Deeksha Vajja Sadanand Nhariram Anumakonda Varada Rajulu Department of Chemical Engineering Osmania UniversityHyderabad500007India Department of Chemistry Osmania UniversityHyderabad500007India Department of Biochemistry Kalasalingam UniversityAnand NagarKrishnankovil626126India Centre for Composite Materials International Research CentreKalasalingam UniversityAnand NagarKrishnankovil 626126India

The aim of the present study was to develop antibacterial cellulose(cotton)nanocomposite fab-rics(CNCFs)with in situ generated silver nanoparticles using medicinal plant Vitex leaf *** developed CNCFs were characterized by scanning electron microscope(SEM),Fourier transform infrared(FT-IR)spectroscopy,X-ray diffraction(XRD)and antibacterial ***,these CNCFs possessed good antibacterial *** CNCFs prepared using simple and environmentally friendly method can be considered for medical applications in,such as,surgical aprons,wound cleaning,wound dressing,and hospital bed materials.

关键词： Cotton fabrics Silver nanoparticles In situ generation Antibacterial activity

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从脾肾论治熟地黄在慢性再生障碍性贫血治疗中的应用

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陕西中医 2020年第6期41卷 780-782页

作者：唐洪屈刘娜刘勇 Shivraj hariram Nile 重庆市中医院肿瘤科重庆400021 浙江中医药大学药学院杭州311402

慢性再生障碍性贫血是常见的血液性疾病之一,其病情反复发作。中医在治疗慢性障碍性贫血效果明显,本文立足脾肾二脏论治,以肾为先天之本,脾胃为后天之本,为气血生化之根本的依据,讨论熟地黄在治疗慢性再生障碍性贫血中应用。

关键词：再生障碍性贫血脾肾论治熟地黄补肾阴补脾胃

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