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Cr （Ⅲ） Removal from Synthetic Waste Water by Using Water Pond Mud

Journal of Life Sciences 2010年第3期4卷 33-35页

作者： Ashok Kumar Balwant Singh Bisht Amitabh Talwar Manish Kumar Lalit Kumar dept. of Biotechnology Himachal Institute of Life Science Paonta Sahib Sirmour 173025 （HP） India dept. of Zoology/Entomology HNBGU （A Central University） Campus Badshahithaul Tehri 249199 （UK） India dept. of pharmaceutics Himachal Institute of Pharmacy Paonta Sahib Ditt-Sirmour 173025 （HP） India

The pollution of aquatic ecosystem by heavy metals has assumed serious proportions due to their toxicity and accumulative behavior. The toxicity metal is dependent on its chemical form and therefore removal of metal is more meaningful than the estimation of its concentrations. In this study, the batch experiments were carried out under 30℃ to study the effect of pH, initial Cr concentration, adsorbent dose and contact time on the removal of Cr （lII）. The maximum adsorption efficiency （99%） was observed when 1.5 g of pond mud was used for removal ofCr （Ⅲ） from test solution containing 150 mg·Cr / 100 ml. The optimal pH and contact time recorded during the study were 6 and 10.0, respectively.

关键词： Aquatic ecosystem toxicity water pond mud contact time adsorption.

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Applications of synthetic biology in medical and pharmaceutical fields

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Signal Transduction and Targeted Therapy 2023年第6期8卷 2638-2670页

作者： Xu Yan Xu Liu Cuihuan Zhao Guo-Qiang Chen School of Life Sciences Tsinghua University100084BeijingChina PhaBuilder Biotech Co.Ltd. Shunyi DistrictZhaoquan Ying101309BeijingChina Center for Synthetic and Systems Biology Tsinghua University100084BeijingChina MOE Key Lab for Industrial Biocatalysis Dept Chemical EngineeringTsinghua University100084BeijingChina

Synthetic biology aims to design or assemble existing bioparts or bio-components for useful *** the past decades,progresses have been made to build delicate biocircuits,standardized biological building blocks and to develop various genomic/metabolic engineering tools and *** and pharmaceutical demands have also pushed the development of synthetic biology,including integration of heterologous pathways into designer cells to efficiently produce medical agents,enhanced yields of natural products in cell growth media to equal or higher than that of the extracts from plants or fungi,constructions of novel genetic circuits for tumor targeting,controllable releases of therapeutic agents in response to specific biomarkers to fight diseases such as diabetes and ***,new strategies are developed to treat complex immune diseases,infectious diseases and metabolic disorders that are hard to cure via traditional *** general,synthetic biology brings new capabilities to medical and pharmaceutical *** review summarizes the timeline of synthetic biology developments,the past and present of synthetic biology for microbial productions of pharmaceutics,engineered cells equipped with synthetic DNA circuits for diagnosis and therapies,live and auto-assemblied biomaterials for medical treatments,cell-free synthetic biology in medical and pharmaceutical fields,and DNA engineering approaches with potentials for biomedical applications.

关键词： diagnosis synthetic equipped

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