American Elements is a manufacturer and supplier specializing in producing Cadmium Telluride (CdTe) quantum dots with spectra emission ranges from 510 nanometers (nm) to 780 nanometers (nm) wavelengths. They are charged inorganic particles that are available as a powder or in dispersion. Cadmium Telluride quantum dots are nanoparticles of certain semiconductor crystals with the novel property of having an extremely narrow emission spectrum (Gaussian Distribution) that is directly proportional to the particle's size. The smaller the particle the more its emission is blue shifted and conversely the larger the particle size, the more its emission is red shifted, thus allowing for the emission of the complete light spectra of color from the same material. CdTe Quantum Dots have the potential to turn light emitting diodes (LED) from merely display devises to illumination devices creating the first solid state lighting sources. technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement. American Elements manufactures quantum dots from several semiconductor materials, including Cadmium Telluride (CdTe),
Cadmium Selenide/Zinc Sulfide (CdSe/ZnS),
Lead Selenide (PbSe) and Zinc Cadmium Selenide/Zinc Sulfide (ZnCdSe/ZnS) nanoparticles with well-defined peak emission frequencies.
Cadmium is a Block D, Group 12, Period 5 element. The number of electrons in each of Cadmium's shells is 2, 8, 18, 18, 2 and its electronic configuration is [Kr] 4d10 5s2. In its elemental form cadmium's CAS number is 7440-43-9. The cadmium atom has a radius of 148.9.pm and it's Van der Waals radius is 158.pm. Cadmium is a component of some of the lowest melting alloys; it is used in bearing alloys with low coefficients of friction and great resistance to fatigue. Cadmium is used extensively in electroplating, which accounts for about 60% of its use. It is also used in many types of solder, for standard E.M.F.. cells, for nickel-cadmium batteries, and as a barrier to control nuclear fission. Cadmium compounds are used in black and white television phosphors and in blue and green phosphors for color television tubes and CRT monitors. Cadmium in glass and ceramic glazes creates a distinctive cadmium yellow. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. Cadmium and its compounds are extremely toxic. Cadmium was first discovered by Fredrich Stromeyer in 1817. See Cadmium research below. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. The name Cadmium originates from the Latin word 'cadmia' and the Greek word 'kadmeia'. See Cadmium research below.
Tellurium is a Block P, Group 16, Period 5 element. The number of electrons in each of Tellurium's shells is 2, 8, 18, 18, 6 and its electronic configuration is [Kr] 4d10 5s2 5p4. In its elemental form tellurium's CAS number is 13494-80-9. The tellurium atom has a radius of 143.2.pm and it's Van der Waals radius is 206.pm. Tellurium is a p-type semiconductor, and shows greater conductivity in certain directions, depending on alignment of the atoms. It is grown in crystalline form with other elements such as indium telluride. Its conductivity increases slightly with exposure to light which makes many tellurides candidates for solar energyapplications. Tellurium improves the machinability of copper and stainless steel, and its addition to lead decreases the corrosive action of sulfuric acid on lead and improves its strength and hardness. Tellurium is used as a basic ingredient in blasting caps, and is added to cast iron for chill control. Tellurium is used in ceramics. Bismuth telluride has been used in thermoelectric devices. Iron is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Tellurium was first discovered by Franz Muller von Reichenstein in 1782. The name Tellurium originates from the Greek word 'Tellus' meaning Earth. See Tellurium research below.
PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.
Gadolinium chloride pretreatment ameliorates acute cadmium-induced hepatotoxicity.
Kyriakou LG, Tzirogiannis KN, Demonakou MD, Kourentzi KT, Mykoniatis MG, Panoutsopoulos GI.
Toxicol Ind Health. 2011 Dec 15. [Epub ahead of print]
PMID:
22173957
[PubMed - as supplied by publisher]
In vitro-cultured wheat spikes provide a simplified alternative for studies of cadmium uptake in developing grains.
Ganeshan S, Leis M, Drinkwater JM, Madsen LT, Jain JC, Chibbar RN.
J Sci Food Agric. 2011 Dec 16. doi: 10.1002/jsfa.5540. [Epub ahead of print]
PMID:
22173723
[PubMed - as supplied by publisher]
Evaluation of physiological importance of metallothionein protein expressed by Tetrahymena cadmium metallothionein 1 (TMCd1) gene in Escherichia coli.
Suleman A, Shakoori AR.
J Cell Biochem. 2011 Dec 15. doi: 10.1002/jcb.24030. [Epub ahead of print]
PMID:
22173614
[PubMed - as supplied by publisher]
Kinetic, Equilibrium and Thermodynamic Studies of Cadmium (II) Adsorption by Modified Agricultural Wastes.
Al Othman ZA, Hashem A, Habila MA.
Molecules. 2011 Dec 15;16(12):10443-56.
PMID:
22173337
[PubMed - in process]
Photochemical synthesis of N-adamantylhomoallylamines through addition of cyclic olefins to imines catalyzed by alumina grafted cadmium sulfide.
Aldemir M, Heinemann FW, Kisch H.
Photochem Photobiol Sci. 2011 Dec 14. [Epub ahead of print]
PMID:
22170328
[PubMed - as supplied by publisher]
Evaluation of the toxic effects of arsenite, chromate, cadmium, and copper using a battery of four bioassays.
Ko KS, Lee PK, Kong IC.
Appl Microbiol Biotechnol. 2011 Dec 15. [Epub ahead of print]
PMID:
22170103
[PubMed - as supplied by publisher]
Glutathione degradation is a key determinant of glutathione homeostasis.
Baudouin-Cornu P, Lagniel G, Kumar C, Huang ME, Labarre J.
J Biol Chem. 2011 Dec 13. [Epub ahead of print]
PMID:
22170048
[PubMed - as supplied by publisher]
[Cacoa and dark chocolate in cardiovascular prevention?].
Belz GG, Mohr-Kahaly S.
Dtsch Med Wochenschr. 2011 Dec;136(51-52):2657-63. Epub 2011 Dec 14. German.
PMID:
22169919
[PubMed - in process]
Do toxic heavy metals affect antioxidant defense mechanisms in humans?
Wieloch M, Kaminski P, Ossowska A, Koim-Puchowska B, Stuczynski T, Kuligowska-Prusinska M, Dymek G, Mankowska A, Odrowaz-Sypniewska G.
Ecotoxicol Environ Saf. 2011 Dec 12. [Epub ahead of print]
PMID:
22169892
[PubMed - as supplied by publisher]
Gender differences for associations between circulating levels of metals and coronary risk in the elderly.
Olsén L, Lind PM, Lind L.
Int J Hyg Environ Health. 2011 Dec 8. [Epub ahead of print]
PMID:
22169700
[PubMed - as supplied by publisher]
Differential toxicity of cadmium to mustard (Brassica juncia L.) genotypes under higher metal levels.
Bauddh K, Singh RP.
J Environ Biol. 2011 May;32(3):355-62.
PMID:
22167949
[PubMed - in process]
[Cd uptake in rice cultivars and Cd fractions in soil treated with organic acids and EDTA].
Zhang HB, Li YR, Xu WH, Chen GQ, Wang HX, Han GQ, Zhang XJ, Xiong ZT, Zhang JZ, Xie DT.
Huan Jing Ke Xue. 2011 Sep;32(9):2625-31. Chinese.
PMID:
22165231
[PubMed - in process]
Short-term effects of compost amendment on the fractionation of cadmium in soil and cadmium accumulation in rice plants.
Juang KW, Ho PC, Yu CH.
Environ Sci Pollut Res Int. 2011 Dec 9. [Epub ahead of print]
PMID:
22161300
[PubMed - as supplied by publisher]
Cadmium a metalloestrogen: are we convinced?
Silva N, Peiris-John R, Wickremasinghe R, Senanayake H, Sathiakumar N.
J Appl Toxicol. 2011 Dec 12. doi: 10.1002/jat.1771. [Epub ahead of print]
PMID:
22161274
[PubMed - as supplied by publisher]
Heterologous Expression of a Nelumbo nucifera Phytochelatin Synthase Gene Enhances Cadmium Tolerance in Arabidopsis thaliana.
Liu Z, Gu C, Chen F, Yang D, Wu K, Chen S, Jiang J, Zhang Z.
Appl Biochem Biotechnol. 2011 Dec 9. [Epub ahead of print]
PMID:
22161260
[PubMed - as supplied by publisher]
Low-affinity cation transporter (OsLCT1) regulates cadmium transport into rice grains.
Uraguchi S, Kamiya T, Sakamoto T, Kasai K, Sato Y, Nagamura Y, Yoshida A, Kyozuka J, Ishikawa S, Fujiwara T.
Proc Natl Acad Sci U S A. 2011 Dec 12. [Epub ahead of print]
PMID:
22160725
[PubMed - as supplied by publisher]
Heavy metal contamination in feathers of Western Reef Heron (Egretta gularis) and Siberian gull (Larus heuglini) from Hara biosphere reserve of Southern Iran.
Mansouri B, Babaei H, Hoshyari E.
Environ Monit Assess. 2011 Dec 9. [Epub ahead of print]
PMID:
22160473
[PubMed - as supplied by publisher]
Metal Concentrations in Surface Sediments of Beyler Reservoir (Turkey).
Findik O, Turan MA.
Bull Environ Contam Toxicol. 2011 Dec 9. [Epub ahead of print]
PMID:
22160166
[PubMed - as supplied by publisher]
Evaluation of genotoxic effects of lead in pottery-glaze workers using micronucleus assay, alkaline comet assay and DNA diffusion assay.
Kasuba V, Rozgaj R, Milic M, Zeljezic D, Kopjar N, Pizent A, Kljakovic-Gaspic Z, Jazbec A.
Int Arch Occup Environ Health. 2011 Dec 9. [Epub ahead of print]
PMID:
22160131
[PubMed - as supplied by publisher]
Two-dimensional assembly of tetrahedral chalcogenide clusters with tetrakis(imidazolyl)borate ligands.
Chen Z, Luo D, Luo X, Kang M, Lin Z.
Dalton Trans. 2011 Dec 12. [Epub ahead of print]
PMID:
22159355
[PubMed - as supplied by publisher]
Multi-metal(loid) methylation in methanoarchaea is linked to central intermediates of methanogenesis.
Thomas F, Diaz-Bone RA, Wuerfel O, Huber B, Weidenbach K, Schmitz RA, Hensel R.
Appl Environ Microbiol. 2011 Oct 14. [Epub ahead of print]
PMID:
22003009
[PubMed - as supplied by publisher]
Synthesis, structure, and bonding of orthorhombic r(5)au(2)te(2) (R = lu, ho, dy, y). Electronic structure of the binary parent valence compound eu(5)as(4).
Chai P, Corbett JD.
Inorg Chem. 2011 Nov 7;50(21):10949-55. Epub 2011 Oct 12.
PMID:
21991925
[PubMed - in process]
Glucose-6-Phosphate Dehydrogenase Protects Escherichia coli from Tellurite-Mediated Oxidative Stress.
Sandoval JM, Arenas FA, Vásquez CC.
PLoS One. 2011;6(9):e25573. Epub 2011 Sep 30.
PMID:
21984934
[PubMed - in process]
Microbial processing of tellurium as a tool in biotechnology.
Turner RJ, Borghese R, Zannoni D.
Biotechnol Adv. 2011 Sep 1. [Epub ahead of print]
PMID:
21907273
[PubMed - as supplied by publisher]
Measurement of the ?? Decay Half-Life of ^{130}Te with the NEMO-3 Detector.
Arnold R, Augier C, Baker J, Barabash AS, Basharina-Freshville A, Blondel S, Bongrand M, Broudin-Bay G, Brudanin V, Caffrey AJ, Chapon A, Chauveau E, Durand D, Egorov V, Flack R, Garrido X, Grozier J, Guillon B, Hubert P, Hugon C, Jackson CM, Jullian S, Kauer M, Klimenko A, Kochetov O, Konovalov SI, Kovalenko V, Lalanne D, Lamhamdi T, Lang K, Liptak Z, Lutter G, Mamedov F, Marquet Ch, Martin-Albo J, Mauger F, Mott J, Nachab A, Nemchenok I, Nguyen CH, Nova F, Novella P, Ohsumi H, Pahlka RB, Perrot F, Piquemal F, Reyss JL, Richards B, Ricol JS, Saakyan R, Sarazin X, Simard L, Simkovic F, Shitov Y, Smolnikov A, Söldner-Rembold S, Stekl I, Suhonen J, Sutton CS, Szklarz G, Thomas J, Timkin V, Torre S, Tretyak VI, Umatov V, Vála L, Vanyushin I, Vasiliev V, Vorobel V, Vylov Ts, Zukauskas A; NEMO-3 Collaboration.
Phys Rev Lett. 2011 Aug 5;107(6):062504. Epub 2011 Aug 4.
PMID:
21902318
[PubMed - in process]
Synthesis and characterization of wurtzite ZnTe nanorods with controllable aspect ratios.
Zhang J, Jin S, Fry HC, Peng S, Shevchenko E, Wiederrecht GP, Rajh T.
J Am Chem Soc. 2011 Oct 5;133(39):15324-7. Epub 2011 Sep 12.
PMID:
21899348
[PubMed - in process]
A homometallic tricapped cubane cluster: [(Cp*Mo)4B4H4(?4-BH)3] (Cp* = ?5-C5Me5).
Thakur A, Sahoo S, Ghosh S.
Inorg Chem. 2011 Sep 5;50(17):7940-2. Epub 2011 Aug 11.
PMID:
21834507
[PubMed - in process]
Selective antimicrobial activity associated with sulfur nanoparticles.
Schneider T, Baldauf A, Ba LA, Jamier V, Khairan K, Sarakbi MB, Reum N, Schneider M, Röseler A, Becker K, Burkholz T, Winyard PG, Kelkel M, Diederich M, Jacob C.
J Biomed Nanotechnol. 2011 Jun;7(3):395-405.
PMID:
21830480
[PubMed - indexed for MEDLINE]
Bioactivity of the conjugation of green-emitting CdTe quantum dots with a carborane complex.
Wu C, Shi L, Li Q, Zhao J, Selke M, Yan H, Wang X.
J Nanosci Nanotechnol. 2011 Apr;11(4):3091-9.
PMID:
21776675
[PubMed - indexed for MEDLINE]
Isolation and characterization of an environmental cadmium- and tellurite-resistant Pseudomonas strain.
Chien CC, Jiang MH, Tsai MR, Chien CC.
Environ Toxicol Chem. 2011 Oct;30(10):2202-7. doi: 10.1002/etc.620. Epub 2011 Aug 10.
PMID:
21766319
[PubMed - in process]
An ultrasensitive hydrogen peroxide biosensor based on electrocatalytic synergy of graphene-gold nanocomposite, CdTe-CdS core-shell quantum dots and gold nanoparticles.
Gu Z, Yang S, Li Z, Sun X, Wang G, Fang Y, Liu J.
Anal Chim Acta. 2011 Sep 2;701(1):75-80. Epub 2011 Jul 4.
PMID:
21763811
[PubMed - indexed for MEDLINE]
Synchronous determination of mercury (II) and copper (II) based on quantum dots-multilayer film.
Ma Q, Ha E, Yang F, Su X.
Anal Chim Acta. 2011 Sep 2;701(1):60-5. Epub 2011 Jun 17.
PMID:
21763809
[PubMed - indexed for MEDLINE]
Procedure-Controlled Selective Synthesis of 5-Acyl-2-iminothiazolines and their Selenium and Tellurium Derivatives by Convergent Tandem Annulation.
Wang Y, Zhang WX, Wang Z, Xi Z.
Angew Chem Int Ed Engl. 2011 Jul 14. doi: 10.1002/anie.201101948. [Epub ahead of print] No abstract available.
PMID:
21761522
[PubMed - as supplied by publisher]
Synthesis, structures and ab initio studies of selenium and tellurium bis(carbodithioates and carbothioates).
Kato S, Tani K, Ishida M, Nonogaki J, Ebihara M, Hayashi S, Nakanishi W, Niyomura O, Ando F, Koketsu J.
Dalton Trans. 2011 Aug 28;40(32):8156-69. Epub 2011 Jul 13.
PMID:
21750832
[PubMed - in process]
Electrical bistability in self-assembled hybrid multilayers of phospholipid and nanoparticles.
Yuan B, Hu SX, Lu NY, Xu F, Zhou K, Ma YQ, Li M.
Nanotechnology. 2011 Aug 5;22(31):315303. Epub 2011 Jul 12.
PMID:
21747161
[PubMed - indexed for MEDLINE]
Organomercury(II) and tellurium(II) compounds with the "pincer" ligand 2,6-[O(CH2CH2)2NCH2]2C6H3--stabilization of an unusual organotellurium(II) cationic species.
Beleaga A, Bojan VR, Pöllnitz A, Rat CI, Silvestru C.
Dalton Trans. 2011 Sep 21;40(35):8830-8. Epub 2011 Jul 11.
PMID:
21743935
[PubMed - in process]
Differentiation between the motor and sensory fascicles of the peripheral nerves from adult rats using annexin V-CdTe-conjugated polymer.
Meng X, Lu L, Wang H, Liu B.
Neurol India. 2011 May-Jun;59(3):333-8.
PMID:
21743158
[PubMed - indexed for MEDLINE]
Tellurium tetrachloride and diphenyl ditelluride cause cytotoxicity in rat hippocampal astrocytes.
Roy S, Hardej D.
Food Chem Toxicol. 2011 Oct;49(10):2564-74. Epub 2011 Jul 1.
PMID:
21742007
[PubMed - in process]
Cadmium is a Block D, Group 12, Period 5 element. The number of electrons in each of Cadmium's shells is 2, 8, 18, 18, 2 and its electronic configuration is [Kr] 4d10 5s2. In its elemental form cadmium's CAS number is 7440-43-9. The cadmium atom has a radius of 148.9.pm and it's Van der Waals radius is 158.pm. Cadmium is a component of some of the lowest melting alloys; it is used in bearing alloys with low coefficients of friction and great resistance to fatigue. Cadmium is used extensively in electroplating, which accounts for about 60% of its use. It is also used in many types of solder,
for standard E.M.F.. cells, for nickel-cadmium batteries, and as a barrier to control nuclear fission. Cadmium compounds are used in black and white television phosphors and in blue and green phosphors for color television tubes and CRT monitors.
Cadmium in glass and ceramic glazes creates a distinctive cadmium yellow. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. Cadmium and its compounds are extremely toxic. Cadmium was first discovered by Fredrich Stromeyer in 1817. See Cadmium research below. It forms a number of compounds, of which the sulfate is most common; the sulfide is used as a yellow pigment. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. The name Cadmium originates from the Latin word 'cadmia' and the Greek word 'kadmeia'. See Cadmium research below. 
Tellurium is a Block P, Group 16, Period 5 element. The number of electrons in each of Tellurium's shells is 2, 8, 18, 18, 6 and its electronic configuration is [Kr] 4d10 5s2 5p4. In its elemental form tellurium's CAS number is 13494-80-9. The tellurium atom has a radius of 143.2.pm and it's Van der Waals radius is 206.pm. Tellurium is a p-type semiconductor, and shows greater conductivity in certain directions, depending on alignment of the atoms. It is grown in crystalline form with other elements such as indium telluride. Its conductivity increases slightly with exposure to light which makes many tellurides candidates for solar energyapplications. Tellurium improves the machinability of copper and stainless steel, and its addition to lead decreases the corrosive action of sulfuric acid on lead and improves its strength and hardness. 
Tellurium is used as 
a basic ingredient in blasting caps, and is added to cast iron for chill control. Tellurium is used in ceramics. Bismuth telluride has been used in thermoelectric devices. Iron is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Tellurium was first discovered by Franz Muller von Reichenstein in 1782. The name Tellurium originates from the Greek word 'Tellus' meaning Earth. See Tellurium research below. 
