Results 21 to 30 of about 48,533 (302)

Uptake and cytotoxicity of citrate-coated gold nanospheres : comparative studies on human endothelial and epithelial cells [PDF]

, 2012
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally
Couraud, Pierre-Olivier, Freese, Christian, Gibson, Matthew I., Kirkpatrick, C. J. (C. James), Romero, Ignacio A., Uboldi, Chiara, Unger, Ronald E., Weksler, Babette B.   +7 more
core   +7 more sources

PEG supported Cu–Mo mixed metal oxide (CuO–MoO3@PEG): A highly efficient catalyst for the enamination of pyrimidine dione and dimedone

Current Research in Green and Sustainable Chemistry, 2022
Polyethylene glycol-6000 supported copper-molybdenum nanoparticles (CuO–MoO3@PEG) has been synthesized as a highly efficient, novel and recyclable heterogeneous catalyst by simple impregnation method. The catalyst was characterized by FTIR, XRD, SEM, EDX,
Abdulaziz Abdullah Qasem Ali, Mohd Umar Khan, Zeba N. Siddiqui   +2 more
doaj   +1 more source

Geochemical reactivity of subsurface sediments as potential buffer to anthropogenic inputs: a strategy for regional characterization in the Netherlands [PDF]

, 2011
Geochemical reactivity of subsurface sediments as potential buffer to anthropogenic inputs: a strategy for regional characterization in the ...
Gaans, P.F.M., van, Griffioen, J., Klaver, G., Mol, G.   +3 more
core   +3 more sources

Determination of Nb and Ta in Ores and Metallurgical Samples by Inductively Coupled Plasma-Atomic Emission Spectrometry with Ethanol as a Sensitizer

Yankuang ceshi, 2015
Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) has been widely used in the determination of Nb and Ta, but its low sensitivity and high detection limits cannot meet the analysis requirement of low content Nb and Ta in ores and ...
YAO Yu-Ling, WU Li-kun, LIU Wei, LI Gang
doaj   +1 more source

A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments [PDF]

, 2010
Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on conventional (Si-only) wet-alkaline digestion methods. Although results have provided detailed palaeoenvironmental information, potential errors can arise in ...
Swann, George E.A.
core   +3 more sources

Establishment of an Indirect Competitive Enzyme-Linked Immunosorbent Method for the Detection of Heavy Metal Cadmium in Food Packaging Materials

Foods, 2021
Heavy metals in food packaging materials have been indicated to release into the environment at slow rates. Heavy metal contamination, especially that of cadmium (Cd), is widely acknowledged as a global environment threat that leads to continuous growing
Xianshu Fu, Erjing Chen, Biao Ma, Ying Xu, Peiying Hao, Mingzhou Zhang, Zihong Ye, Xiaoping Yu, Chaofeng Li, Qingge Ji   +9 more
doaj   +1 more source

Severe zinc depletion of escherichia coli: roles for high affinity zinc binding by ZinT, zinc transport and zinc-independent proteins [PDF]

, 2009
Zinc ions play indispensable roles in biological chemistry. However, bacteria have an impressive ability to acquire Zn2+ from the environment, making it exceptionally difficult to achieve Zn2+ deficiency, and so a comprehensive understanding of the ...
Akanuma, Ammendola, Andreini, Barrett, Beard, Berducci, Berg, Birch, Blencowe, Brocklehurst, Cai, Cherny, Ciccognani, Datsenko, David, David, Davis, de Seny, Fekkes, Ferenci, Ferianc, Fraústo da Silva, Garland, Gill, Hantke, Hayes, Hoskisson, Hughes, Jackson, Kadokura, Kannan, Kay, Kershaw, Kershaw, Koch, Laurent-Winter, Lee, Lin, Makarova, Miller, Moore, Mukherjee, Nanamiya, Neidhardt, Notley-McRobb, Outten, Owen, Panina, Patzer, Patzer, Piper, Pirt, Puskárová, Scott, Sebat, Shin, Sigdel, Simons, Stojnev, Wang, Yamamoto, Yamamoto, Yatsunyk   +62 more
core   +3 more sources

Geochemical analysis of bulk marine sediment by Inductively Coupled Plasma–Atomic Emission Spectroscopy on board the JOIDES Resolution

, 2002
Geochemical analyses on board the JOIDES Resolution have been enhanced with the addition of a Jobin-Yvon Ultrace inductively coupled plasma-atomic emission spectrometer (ICP-AES) as an upgrade from the previous X-ray fluorescence facility. During Leg 199,
Backman, J., Busch, W.H., Coxall, H.K., Faul, K., Gaillot, P.A., Graham, D., Hovan, S.A., Janecek, T.R., Knoop, P., Kruse, S., Lanci, L., Lear, C.H., Lyle, M., Moore, T.C., Murray, R.W., Nigrini, C.A., Nishi, H., Nomura, R., Norris, R.D., Parés, J.M., Peng, C., Pälike, Heiko, Quintin, L., Raffi, I., Rea, B.R., Rea, D.K., Steiger, T.H., Tripati, A.K., Vanden Berg, M.D., Wade, B.S., Wilson, P.A.   +30 more
core   +1 more source

Microwave plasma atomic emission spectroscopy (MP-AES)—A useful tool for the determination of silicon contents in plant samples?

Frontiers in Environmental Science
The accurate quantification of silicon (Si) contents in plant materials represents a fundamental prerequisite for agricultural plant-soil system or terrestrial ecosystem studies.
Daniel Puppe, Christian Buhtz, Danuta Kaczorek, Danuta Kaczorek, Jörg Schaller, Mathias Stein   +5 more
doaj   +1 more source

Synthesis of cross-linked chitosan functionalized with threonine moiety and its application to on-line collection/concentration and determination of Mo, V and Cu [PDF]

, 2007
A novel chitosan-based resin functionalized with threonine moiety was synthesized, and applied to the collection/concentration of Mo, V and Cu in environmental water samples, followed by their determination using inductively coupled plasma-atomic ...
Hakim, Lukman, Motomizu, Shoji, Oshima, Mitsuko, Oshita, Koji, Sabarudin, Akhmad   +4 more
core   +1 more source