selenium compounds

Summary

Summary: Inorganic compounds that contain selenium as an integral part of the molecule.

Top Publications

  1. Smith W, Brownell J, White C, Afsharinejad Z, Tsai J, Hu X, et al. In vitro toxicity assessment of amphiphillic polymer-coated CdSe/ZnS quantum dots in two human liver cell models. ACS Nano. 2012;6:9475-84 pubmed publisher
    ..Thus, further in vivo studies are warranted to ensure that TOPO-PMAT-coated Qdots used in biomedical applications do not induce inflammatory responses as a consequence of hepatic uptake...
  2. Bodnar M, Konieczka P, Namiesnik J. The properties, functions, and use of selenium compounds in living organisms. J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 2012;30:225-52 pubmed publisher
    ..mechanisms of selenium, including the functions of selenoproteins • the uptake and transformation of selenium compounds by plants, because of the fact that selenium is better assimilated from plant food and also the ..
  3. Tortiglione C, Quarta A, Malvindi M, Tino A, Pellegrino T. Fluorescent nanocrystals reveal regulated portals of entry into and between the cells of Hydra. PLoS ONE. 2009;4:e7698 pubmed publisher
    ..Moreover, tracking QR labelled cells during development and regeneration allowed us to uncover novel intercellular trafficking and cell dynamics underlying the remarkable plasticity of this ancient organism. ..
  4. Ramoutar R, Brumaghim J. Effects of inorganic selenium compounds on oxidative DNA damage. J Inorg Biochem. 2007;101:1028-35 pubmed
    ..Since selenium compounds have been examined for their ability to act as antioxidants to neutralize radical species, and inorganic ..
  5. Khan M, Wang F. Mercury-selenium compounds and their toxicological significance: toward a molecular understanding of the mercury-selenium antagonism. Environ Toxicol Chem. 2009;28:1567-77 pubmed publisher
  6. Zhang J, Peng D, Lu H, Liu Q. Attenuating the toxicity of cisplatin by using selenosulfate with reduced risk of selenium toxicity as compared with selenite. Toxicol Appl Pharmacol. 2008;226:251-9 pubmed
    ..5% or 75%. These results together argue for consideration of selenosulfate as an agent to enhance the therapeutic efficacy of CDDP...
  7. Chen Z, Chen H, Meng H, Xing G, Gao X, Sun B, et al. Bio-distribution and metabolic paths of silica coated CdSeS quantum dots. Toxicol Appl Pharmacol. 2008;230:364-71 pubmed publisher
    ..After five days, 8.6% of the injected dose of aggregated QDs still remained in hepatic tissue and it was difficult for this fraction to clear...
  8. Kuo C, Jiang S. Determination of selenium and tellurium compounds in biological samples by ion chromatography dynamic reaction cell inductively coupled plasma mass spectrometry. J Chromatogr A. 2008;1181:60-6 pubmed publisher
    ..The selenium and tellurium species are extracted from milk powder and rice flour samples by using Protease XIV at 70 degrees C on a water bath for 30 min...
  9. Yu M, Van Orden A. Enhanced fluorescence intermittency of CdSe-ZnS quantum-dot clusters. Phys Rev Lett. 2006;97:237402 pubmed
    ..The nature of this coupling is not known, though electrons trapped from QDs when they blink off may play a role by altering the electronic environment of neighboring QDs and enhancing their fluorescence properties...

More Information

Publications62

  1. Priester J, Stoimenov P, Mielke R, Webb S, Ehrhardt C, Zhang J, et al. Effects of soluble cadmium salts versus CdSe quantum dots on the growth of planktonic Pseudomonas aeruginosa. Environ Sci Technol. 2009;43:2589-94 pubmed
    ..Taken together, QDs were more toxic to this opportunistic pathogen than cadmium ions, and were affected by cells through QD extracellular stabilization, intracellular enrichment and cell-associated decay...
  2. Sharon E, Freeman R, Willner I. CdSe/ZnS quantum dots-G-quadruplex/hemin hybrids as optical DNA sensors and aptasensors. Anal Chem. 2010;82:7073-7 pubmed publisher
    ..This phenomenon is implemented to develop DNA sensors or aptasensors by tailoring hairpin-functionalized QDs that generate the hemin/G-quadruplex quenchers upon sensing of the respective analytes...
  3. García Santamaría F, Brovelli S, Viswanatha R, Hollingsworth J, Htoon H, Crooker S, et al. Breakdown of volume scaling in Auger recombination in CdSe/CdS heteronanocrystals: the role of the core-shell interface. Nano Lett. 2011;11:687-93 pubmed publisher
    ..These data highlight the importance of NC interfacial structure in the AR process and provide general guidelines for the development of new nanostructures with suppressed AR for future lasing applications...
  4. Pinto A, Speckmann B, Heisler M, Sies H, Steinbrenner H. Delaying of insulin signal transduction in skeletal muscle cells by selenium compounds. J Inorg Biochem. 2011;105:812-20 pubmed publisher
    ..These results suggest that the Se(IV) compounds selenite and MSeA may impair the insulin sensitivity of myocytes by influencing cellular redox homeostasis...
  5. Wu M, Kang M, Schoene N, Cheng W. Selenium compounds activate early barriers of tumorigenesis. J Biol Chem. 2010;285:12055-62 pubmed publisher
    ..Here we show that selenium compounds at doses of </=LD(50) can induce cellular senescence, as evidenced by the expression of senescence-..
  6. Freeman R, Liu X, Willner I. Chemiluminescent and chemiluminescence resonance energy transfer (CRET) detection of DNA, metal ions, and aptamer-substrate complexes using hemin/G-quadruplexes and CdSe/ZnS quantum dots. J Am Chem Soc. 2011;133:11597-604 pubmed publisher
    ..By the application of three different sized QDs functionalized with different hairpins, the multiplexed analysis of three different DNA targets is demonstrated by the generation of three different CRET luminescence signals...
  7. Schipper M, Cheng Z, Lee S, Bentolila L, Iyer G, Rao J, et al. microPET-based biodistribution of quantum dots in living mice. J Nucl Med. 2007;48:1511-8 pubmed
    ..This study evaluates the quantitative biodistribution of commercially available CdSe quantum dots (QD) in mice...
  8. Luo H, Wang F, Bai Y, Chen T, Zheng W. Selenium nanoparticles inhibit the growth of HeLa and MDA-MB-231 cells through induction of S phase arrest. Colloids Surf B Biointerfaces. 2012;94:304-8 pubmed publisher
    ..Taken together, our results suggested that nanoSe(0) may be more helpful in cancer chemoprevention as a potential anticancer drug...
  9. Maraldi T, Riccio M, Zambonin L, Vinceti M, De Pol A, Hakim G. Low levels of selenium compounds are selectively toxic for a human neuron cell line through ROS/RNS increase and apoptotic process activation. Neurotoxicology. 2011;32:180-7 pubmed publisher
    Organic and inorganic selenium compounds were used to examine whether low selenium concentration is able to trigger apoptotic degeneration in a human neuron cell line in vitro and to explore changes in reactive oxygen and nitrogen species ..
  10. Ohta Y, Suzuki K. Methylation and demethylation of intermediates selenide and methylselenol in the metabolism of selenium. Toxicol Appl Pharmacol. 2008;226:169-77 pubmed
    ..Organ-dependent differences in the methylation and demethylation reactions were characterized for the liver, kidney and lung...
  11. Moreels I, Rainò G, Gomes R, Hens Z, Stöferle T, Mahrt R. Band-edge exciton fine structure of small, nearly spherical colloidal CdSe/ZnS quantum dots. ACS Nano. 2011;5:8033-9 pubmed publisher
    ..From the experimental and theoretical data we conclude that shape anisotropy and exchange interactions dominate over the crystal field anisotropy-induced splitting in this size range...
  12. Corcoran N, Martin D, Hutter Paier B, Windisch M, Nguyen T, Nheu L, et al. Sodium selenate specifically activates PP2A phosphatase, dephosphorylates tau and reverses memory deficits in an Alzheimer's disease model. J Clin Neurosci. 2010;17:1025-33 pubmed publisher
    ..Sodium selenate is a specific activator of PP2A with excellent oral bioavailability, and favourable central nervous system penetrating properties. Clinical studies in patients with AD are envisaged in the near future...
  13. Suchocki P, Misiewicz I, Skupinska K, Waclawek K, Fijalek Z, Kasprzycka Guttman T. The activity of Selol in multidrug-resistant and sensitive human leukemia cells. Oncol Rep. 2007;18:893-9 pubmed
    ..The study has shown that Selol overcame the cell resistance, as doxorubicin-resistant cells were more sensitive towards Selol than sensitive cells...
  14. Kim J, Park Y, Yoon T, Yoon C, Choi K. Phototoxicity of CdSe/ZnSe quantum dots with surface coatings of 3-mercaptopropionic acid or tri-n-octylphosphine oxide/gum arabic in Daphnia magna under environmentally relevant UV-B light. Aquat Toxicol. 2010;97:116-24 pubmed publisher
    ..These observations suggest that the phototoxicity of QDs may be explained not only by Cd release from the QD core but also by stability of surface coating characteristics and other potential causes such as ROS generation...
  15. Duan H, Nie S. Cell-penetrating quantum dots based on multivalent and endosome-disrupting surface coatings. J Am Chem Soc. 2007;129:3333-8 pubmed
    ..These insights are important toward the design and development of nanoparticle agents for intracellular imaging and therapeutic applications...
  16. Zhu H, Song N, Lian T. Controlling charge separation and recombination rates in CdSe/ZnS type I core-shell quantum dots by shell thicknesses. J Am Chem Soc. 2010;132:15038-45 pubmed publisher
    ..This finding suggests possible ways of optimizing the charge separation yield and lifetime by controlling the thickness and nature of the shell materials...
  17. Wallenberg M, Olm E, Hebert C, Björnstedt M, Fernandes A. Selenium compounds are substrates for glutaredoxins: a novel pathway for selenium metabolism and a potential mechanism for selenium-mediated cytotoxicity. Biochem J. 2010;429:85-93 pubmed publisher
    ..In the present study, we have explored the reactions between selenium compounds and the glutaredoxin system...
  18. Fazlollahi F, Sipos A, Kim Y, Hamm Alvarez S, Borok Z, Kim K, et al. Translocation of PEGylated quantum dots across rat alveolar epithelial cell monolayers. Int J Nanomedicine. 2011;6:2849-57 pubmed publisher
    ..In this study, primary rat alveolar epithelial cell monolayers (RAECM) were used to investigate transalveolar epithelial quantum dot trafficking rates and underlying transport mechanisms...
  19. Zhu Y, Pilon Smits E, Zhao F, Williams P, Meharg A. Selenium in higher plants: understanding mechanisms for biofortification and phytoremediation. Trends Plant Sci. 2009;14:436-42 pubmed publisher
    ..We also discuss recent advances in the genetic engineering of Se metabolism, particularly for biofortification and phytoremediation of Se-contaminated environments...
  20. McHale K, Berglund A, Mabuchi H. Quantum dot photon statistics measured by three-dimensional particle tracking. Nano Lett. 2007;7:3535-9 pubmed
    ..In addition, we show that 2-mercaptoethanol suppresses short time-scale intermittency (1 ms to 1 s) in quantum dot fluorescence by reducing time spent in the off-state...
  21. Sovová K, Shestivska V, Spanel P. Real-time quantification of traces of biogenic volatile selenium compounds in humid air by selected ion flow tube mass spectrometry. Anal Chem. 2012;84:4979-83 pubmed publisher
    ..The results of experiments demonstrating this method on emissions from maize (Zea mays) seedlings cultivated in Se rich medium are also presented...
  22. Letavayová L, Vlasáková D, Spallholz J, Brozmanová J, Chovanec M. Toxicity and mutagenicity of selenium compounds in Saccharomyces cerevisiae. Mutat Res. 2008;638:1-10 pubmed
    ..We propose that SeL is acting as an oxidizing agent in S. cerevisiae producing superoxide and oxidative damage to DNA accounting for the observed DSB and cell death...
  23. Brigelius Flohe R. Selenium compounds and selenoproteins in cancer. Chem Biodivers. 2008;5:389-95 pubmed publisher
    ..They may, however, also provide a selective advantage for pre-existing tumor cells in guaranteeing survival and continuous proliferation...
  24. Anas A, Akita H, Harashima H, Itoh T, Ishikawa M, Biju V. Photosensitized breakage and damage of DNA by CdSe-ZnS quantum dots. J Phys Chem B. 2008;112:10005-11 pubmed publisher
    ..In this regard, photosensitized damage of pDNA observed in the current work shows possibilities of QDs in nucleus-targeted photodynamic therapy...
  25. Carbone L, Nobile C, De Giorgi M, Sala F, Morello G, Pompa P, et al. Synthesis and micrometer-scale assembly of colloidal CdSe/CdS nanorods prepared by a seeded growth approach. Nano Lett. 2007;7:2942-50 pubmed
    ..We demonstrate their lateral alignment as well as their vertical self-alignment on substrates up to areas of several square micrometers...
  26. Rikiishi H. Apoptotic cellular events for selenium compounds involved in cancer prevention. J Bioenerg Biomembr. 2007;39:91-8 pubmed
    ..This mini-review focuses on elucidation of the molecular mechanisms of cancer prevention by Se with the apoptotic approach...
  27. Geoffroy L, Gilbin R, Simon O, Floriani M, Adam C, Pradines C, et al. Effect of selenate on growth and photosynthesis of Chlamydomonas reinhardtii. Aquat Toxicol. 2007;83:149-58 pubmed
  28. Owen J, Park J, Trudeau P, Alivisatos A. Reaction chemistry and ligand exchange at cadmium-selenide nanocrystal surfaces. J Am Chem Soc. 2008;130:12279-81 pubmed publisher
    ..These results, in conjunction with previous literature reports, indicate that as-prepared nanocrystal surfaces are terminated by X-type binding of octadecylphosphonate moieties to a layer of excess cadmium ions...
  29. Yu X, Gu J. Differences in uptake and translocation of selenate and selenite by the weeping willow and hybrid willow. Environ Sci Pollut Res Int. 2008;15:499-508 pubmed publisher
    ..The goal of this study was to investigate uptake and translocation of Se in willows and to provide quantitative information for field application whether Se phytoremediation is feasible and ecologically safe...
  30. Jackson M, Combs G. Selenium and anticarcinogenesis: underlying mechanisms. Curr Opin Clin Nutr Metab Care. 2008;11:718-26 pubmed publisher
    ..To discuss recent research related to anticarcinogenic mechanisms of selenium action in light of the underlying chemical/biochemical functions of the selenium species, likely to be executors of those effects...
  31. Zeng H, Botnen J. Selenium is critical for cancer-signaling gene expression but not cell proliferation in human colon Caco-2 cells. Biofactors. 2007;31:155-64 pubmed
  32. Suzuki K, Kurasaki K, Suzuki N. Selenocysteine beta-lyase and methylselenol demethylase in the metabolism of Se-methylated selenocompounds into selenide. Biochim Biophys Acta. 2007;1770:1053-61 pubmed
  33. Umysová D, Vítová M, Dousková I, Bisova K, Hlavová M, Cížková M, et al. Bioaccumulation and toxicity of selenium compounds in the green alga Scenedesmus quadricauda. BMC Plant Biol. 2009;9:58 pubmed publisher
    ..The impact of selenium on mammalian and land plant cells has been quite extensively studied. Information about algal cells is rare despite of the fact that they could produce selenium enriched biomass for biotechnology purposes...
  34. Chan W, Shiao N. Cytotoxic effect of CdSe quantum dots on mouse embryonic development. Acta Pharmacol Sin. 2008;29:259-66 pubmed publisher
    ..The aim of this study was to examine the cytotoxic effect of quantum dots (QD), a novel luminescent material, on early post-implantation embryonic development...
  35. Zhang J, Wang L, Li G, Anderson L, Xu Y, Witthuhn B, et al. Mouse prostate proteomes are differentially altered by supranutritional intake of four selenium compounds. Nutr Cancer. 2011;63:778-89 pubmed publisher
    ..We propose that the balance of oncogenic vs. suppressor protein patterns in the prostate may impact the direction of PCa risk modification by a given selenium...
  36. Zhou X, Yuan Y, Yang Y, Rutzke M, Thannhauser T, Kochian L, et al. Involvement of a broccoli COQ5 methyltransferase in the production of volatile selenium compounds. Plant Physiol. 2009;151:528-40 pubmed publisher
    ..This discovery opens up new prospects regarding our understanding of the complete metabolism of Se and may lead to ways to modify Se-accumulator plants with increased efficiency for phytoremediation of Se-contaminated environments...
  37. Mahn A, Toledo H, Ruz M. Organic and inorganic selenium compounds produce different protein patterns in the blood plasma of rats. Biol Res. 2009;42:163-73 pubmed publisher
    Some selenium compounds offer important health benefits when administered at supranutritional doses, such as improvement of the immune system and of male fertility, and the prevention of some types of cancer...
  38. Nakazawa E, Ikemoto T, Hokura A, Terada Y, Kunito T, Tanabe S, et al. The presence of mercury selenide in various tissues of the striped dolphin: evidence from ?-XRF-XRD and XAFS analyses. Metallomics. 2011;3:719-25 pubmed publisher
    ..This is the first report on the presence of tiemannite HgSe in various tissues of marine mammals...
  39. Shang D, Li Y, Wang C, Wang X, Yu Z, Fu X. A novel polysaccharide from Se-enriched Ganoderma lucidum induces apoptosis of human breast cancer cells. Oncol Rep. 2011;25:267-72 pubmed
    ..Our studies suggest that SeGLP-2B-1 induces apoptosis via a mitochondria-mediated pathway...
  40. Tang M, Xing T, Zeng J, Wang H, Li C, Yin S, et al. Unmodified CdSe quantum dots induce elevation of cytoplasmic calcium levels and impairment of functional properties of sodium channels in rat primary cultured hippocampal neurons. Environ Health Perspect. 2008;116:915-22 pubmed publisher
    ..Meanwhile the interference of QDs with voltage-gated sodium channel (VGSC) current (I(Na)) may lead to changes in electrical activity and worsen neurotoxicologic damage...
  41. Brozmanová J, Mániková D, Vlckova V, Chovanec M. Selenium: a double-edged sword for defense and offence in cancer. Arch Toxicol. 2010;84:919-38 pubmed publisher
    ..Since Saccharomyces cerevisiae has proven a powerful tool for addressing some important questions regarding Se biology, a part of this review is devoted to this model system...
  42. Yu S, Kuhn H, Daniliuc C, Ivanov I, Jones P, du Mont W. 5-Selenization of salicylic acid derivatives yielded isoform-specific 5-lipoxygenase inhibitors. Org Biomol Chem. 2010;8:828-34 pubmed publisher
    ..In addition, synthesis products exhibited GPx-like activity, which was higher than that of ebselen for some derivatives...
  43. Lu J, Berndt C, Holmgren A. Metabolism of selenium compounds catalyzed by the mammalian selenoprotein thioredoxin reductase. Biochim Biophys Acta. 2009;1790:1513-9 pubmed publisher
    ..b>Selenium compounds such as selenite, selenodiglutathione and selenocystine are substrates for the enzyme with low K(m)-values ..
  44. Chen M, An M. Selenium adsorption and speciation with Mg-FeCO? layered double hydroxides loaded cellulose fibre. Talanta. 2012;95:31-5 pubmed publisher
    ..3% (0.5 ?g L(-1), n=11) was achieved. The procedure was validated by analyzing selenium in a certified reference material GBW 10010 (rice), and speciation of inorganic selenium in natural water samples...
  45. Wei H, Evans C, Swartz B, Neukirch A, Young J, Prezhdo O, et al. Colloidal semiconductor quantum dots with tunable surface composition. Nano Lett. 2012;12:4465-71 pubmed publisher
    ..Calculations suggest that electronic states inside the band gap arising from surface sulfur atoms could trap charges, thus inhibiting radiative recombination and facilitating nonradiative relaxation...
  46. Tan L, He X, Chen D, Wu X, Li H, Ren X, et al. Highly H2O2-sensitive electrospun quantum dots nanocomposite films for fluorescent biosensor. J Biomed Nanotechnol. 2013;9:53-60 pubmed
  47. Shi Z, Liu C, Lv W, Shen H, Wang D, Chen L, et al. Free-standing single-walled carbon nanotube-CdSe quantum dots hybrid ultrathin films for flexible optoelectronic conversion devices. Nanoscale. 2012;4:4515-21 pubmed publisher
    ..In addition, our SWCNT-CdSe QDs hybrid film exhibited high flexibility and durability. No clear change in the resistance of the film was detected under bending in various bending angles...
  48. Au G, Shih W, Tseng S, Shih W. Aqueous CdPbS quantum dots for near-infrared imaging. Nanotechnology. 2012;23:275601 pubmed publisher
    ..Cells transfected with CdPbS QDs were shown to be visible underneath a slab of chicken muscle tissue of up to 0.7 mm in thickness without the use of multiple-photon microscopy...
  49. Lee W, Hwang S, Cho M, Park H, Han J, Song S, et al. CIS-ZnS quantum dots for self-aligned liquid crystal molecules with superior electro-optic properties. Nanoscale. 2013;5:193-9 pubmed publisher
    ..0% reduction in the V(th) and a 38.3% decrease in the response time were observed for VA mode LCDs, meaning that the proposed LC-QD composites have a great potential for the production of advanced flexible LCDs...
  50. Oehninger L, Stefanopoulou M, Alborzinia H, Schur J, Ludewig S, Namikawa K, et al. Evaluation of arene ruthenium(II) N-heterocyclic carbene complexes as organometallics interacting with thiol and selenol containing biomolecules. Dalton Trans. 2013;42:1657-66 pubmed publisher
    ..Pronounced antiproliferative effects could be obtained provided that an appropriate cellular uptake was achieved. Inhibition of tumor cell growth was accompanied by a perturbation of metabolic parameters such as cellular respiration...
  51. Larese Casanova P, Blake R. Measurement of ?18O values in arsenic and selenium oxyanions. Rapid Commun Mass Spectrom. 2013;27:117-26 pubmed publisher
    ..A modern quantification method of ?(18)O values in selenate, selenite, arsenate, and arsenite is presented here, similar to methods for other inorganic oxyanions such as phosphate...
  52. Mazzio K, Okamoto K, Li Z, Gutmann S, Strein E, Ginger D, et al. A one pot organic/CdSe nanoparticle hybrid material synthesis with in situ ?-conjugated ligand functionalization. Chem Commun (Camb). 2013;49:1321-3 pubmed publisher
    ..Relative to traditional ligand exchange processes, these materials require smaller amounts of the desired capping ligand, shorter syntheses and fewer processing steps, while maintaining nanoparticle morphology...
  53. Yang W, Ma Y, Wang Y, Meng C, Wu X, Ye Y, et al. Bending effects on lasing action of semiconductor nanowires. Opt Express. 2013;21:2024-31 pubmed publisher
    ..Diameter and mode dependent bending losses are investigated. Furthermore, the polarizations of output can be modulated linearly by bending the NWs into different angles continuously...