Heavy metal

Water-soluble CdTe quantum dots (QDs) have been applied in various fields, such as photoluminescent imaging, labeling agents in immune analysis, heavy metal ion sensing, and solar cells.

7p vibenya 31-12-2024 3 1   Download

This Master's thesis aims to document the research process into the synthesis of 2D AlPO4 via a liquid metal synthesis pathway. The synthesised 2D AlPO4 will then undergo qualitative and structural analysis, after which it will be characterised via advanced techniques to determine piezoelectric characteristics, as well as the exploration of the ability of the synthesised material to absorb heavy metals.

114p runthenight04 02-02-2023 7 2   Download

The research objectives of the thesi: Manufacturing biochar (BC) and activated carbon from coffee husk; Fabrication of biochar/activated carbon composite materials from coffee husk and MnFe2O4 nanomaterials to treat Cr(VI) and Ni(II) ions in water. Clarifying adsorption mechanism and heavy metal ion adsorption model on VLHP from coffee husk.

26p extraenglish 24-05-2021 23 3   Download

objectives: To identify the state of heavy metal pollution in water and food in two coastal communes of Thuy nguyen District, Haiphong city in 2017- 2018. To describe the pattern of disease and the risk due to exposure to heavy metal contamination among community residents in the study area.

27p extraenglish 24-05-2021 23 4   Download

Research scope and content: Study on Lethal Concentration 50 (LC50 - 96 hours) of As and Cd and Pb in Oreochromis sp.; the accumulation, elimination of heavy metals (As, Cd, Pb) in Oreochromis sp. in exposure phase and elimination phase; the effects of heavy metals (As, Cd, Pb) on plasma cortisol levels in Oreochromis sp.

27p capheviahe27 23-02-2021 34 3   Download

A series of blends consisting of Red mud(RM) varying from 1.5 to 3 g and Graphene oxide(GO) varying from 0 to 1.5 g to give a total of 3g were prepared.

10p lucastanguyen 01-06-2020 8 2   Download

As the urban area has high population density and intensive anthropogenic activities, there are a great number of sources of heavy metals in cities, placing a considerable influence on human health. Emissions of heavy metals may come from domestic waste, chemical industry and transportation. These emissions have been continuously adding heavy metals to soils and they will remain present for many years even after the pollution sources have been removed.

7p nguaconbaynhay5 16-05-2020 23 0   Download

The signaling properties of the gasotransmitter molecule hydrogen sulfide (H2S), which is endogenously generated in plant cells, are mainly observed during persulfidation, a protein post-translational modification (PTM) that affects redox-sensitive cysteine residues. There is growing experimental evidence that H2S in higher plants may function as a mechanism of response to environmental stress conditions.

7p partimesinhvien 08-05-2020 31 0   Download

The objectives of the thesis: Fabrication of diaphragm sensing material based on phenyl conductive polymer has stability and high sensitivity with heavy metal cations, which is used to identify and analyze heavy metal traces in water. Mời các bạn tham khảo!

26p xacxuoc4321 08-07-2019 48 6   Download

Bioremediation presents a potentially low cost and environmentally agreeable alternative to current physico-chemical remediation strategies. However, heavy metals such as mercury cannot be converted into non-toxic forms by naturally occurring bacteria. Annual global emissions estimates for mercury released into the environment are in the thousands of tons per year [1,2] while the remediation cost is in the thousands of dollars per pound. Finding new bioremediation technologies is an urgent need.

8p zingzing09 24-04-2013 48 4   Download

Expression of the humanTPT1gene coding for translationally controlled tumor protein (TCTP) was investigated in Calu-6 and Cos-7 cells under the influence of 4b-phorbol 12-myristate 13-acetate (PMA), forskolin, dioxin and the heavy metals copper, nickel and cobalt.

9p media19 04-03-2013 36 2   Download

Molybdenum insertion into the dithiolene group on the 6-alkyl side-chain of molybdopterin is a highly specific process that is catalysed by the MoeA and MogA proteins in Escherichia coli. Ligation of molybdate to molybdopterin generates the molybdenum cofactor, which can be inserted directly into molybdoenzymes binding the molybdopterin form of the molybdenum cofactor,

12p vinaphone15 28-02-2013 34 1   Download

The mechanism of ATP hydrolysis of a shortened variant of the heavy metal-translocating P-type ATPase CopB ofSulfolobus solfataricus was studied. The catalytic fragment, named CopB-B, comprises the nucleotide binding and phosphorylation domains. We demonstrated stoichiometric high-affinity binding of one nucleotide to the protein (Kdiss 1–20lm). Mg is not necessary for nucleotide association but is essential for the phospha-tase activity.

15p viettel02 20-02-2013 36 2   Download

TheSaccharomyces cerevisiae vacuolar ATP-binding cassette transporter Ycf1p is involved in heavy metal detoxification by mediating the ATP-dependent transport of glutathione–metal conjugates to the vacuole. In the case of selenite toxicity, deletion of YCF1was shown to confer increased resistance, rather than sensitivity

10p cosis54 09-12-2012 34 2   Download

QUY CHUẨN KỸ THUẬT QUỐC GIA QCVN 8-2:2011/BYT ĐỐI VỚI GIỚI HẠN Ô NHIỄM KIM LOẠI NẶNG TRONG THỰC PHẨM National technical regulation on the safety limits of heavy metals contaminants in food HÀ NỘI - 2011 .Lời nói đầu QCVN 8-2:2011/BYT do Ban soạn thảo Quy chuẩn kỹ thuật quốc gia về vệ sinh an toàn thực phẩm biên soạn, Cục An toàn vệ sinh thực phẩm trình duyệt và được ban hành theo Thông tư số 02 /2011/TT-BYT ngày 13 tháng 01 năm 2011 của Bộ trưởng Bộ Y tế. QUY CHUẨN KỸ THUẬT QUỐC GIA ĐỐI VỚI GIỚI HẠN Ô NHIỄM KIM...

7p waduroi 15-11-2012 596 70   Download

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Heavy Metal Concentrations in Dairy Products from Sheep Milk Collected in Two Regions of Southern Italy...

6p coxanh_1 22-10-2011 55 3   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Heavy metal exposure reverses genetic resistance to Chlamydia-induced arthritis...

10p thulanh11 11-10-2011 39 3   Download

Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Trace Elements, Heavy Metals and Vitamin Levels in Patients with Coronary Artery Disease....

5p thulanh9 07-10-2011 39 4   Download

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov Pass...

9p toshiba4 13-09-2011 57 6   Download

A variety of organisms have been investigated to evaluate their potential as biological indicators of different forms of pollution in the aquatic environment (e.g. review by Gunkel 1994). Certain species have been identified as being highly sensitive either in their physiological response to aquatic contaminants or in their ability to accumulate particular toxins in a dose-time dependent manner.

8p nhoxden_20101991 13-06-2011 85 5   Download