American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopeia/British Pharmacopeia) and follows applicable ASTM testing standards.See safety data and research below and pricing/lead time above. American Elements specializes in producing high purity Lead Selenide Sputtering Targets with the highest possible density and smallest possible average grain sizes for use in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications. Our standard Sputtering Targets for thin film are available monoblock or bonded with dimensions and configurations up to 820 mm with hole drill locations and threading, beveling, grooves and backing designed to work with both older sputtering devises as well as the latest process equipment, such as large area coating for solar energy or fuel cells and flip-chip applications. Research sized targets are also produced as well as custom sizes and alloys. All targets are analyzed using best demonstrated techniques including X-Ray Fluorescence (XRF), Glow Discharge Mass Spectrometry (GDMS), and Inductively Coupled Plasma (ICP). "Sputtering" allows for thin film deposition of an ultra high purity sputtering metallic or oxide material onto another solid substrate by the controlled removal and conversion of the target material into a directed gaseous/plasma phase through ionic bombardment. "Sputtering" allows for thin film deposition of an ultra high purity sputtering metallic or oxide material onto another solid substrate by the controlled removal and conversion of the target material into a directed gaseous/plasma phase through ionic bombardment. We can also provide targets outside this range in addition to just about any size rectangular, annular, or oval target. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as other machined shapes and through other processes nanoparticles.We also produce Lead as disc, granules, ingot, pellets, pieces, powder, and rod. Other shapes are available by request.
Lead is a Block P, Group 14, Period 6 element. The number of electrons in each of Lead's shells is 2, 8, 18, 32, 18, 4 and its electronic configuration is [Xe] 4f14 5d10 6s2 6p2. In its elemental form lead's CAS number is 7439-92-1. The lead atom has a radius of 175.pm and it's Van der Waals radius is 202.pm. Lead and its compounds are poisonous. Lead is a bluish-white metal of bright luster, naturally occurring as a mixture of four stable isotopes: 204Pb (1.48%), 206Pb (23.6%), 207Pb (22.6%), and 208Pb (52.3%). It is highly resistant to corrosion and can be used to contain corrosive liquids such as sulfuric acid. Great quantities of Lead, both as the dioxide and the metal, are used in batteries, cable covering, plumbing, and ammunition. Alloys include solder, type metal, and various antifriction metals and compounds. Lead is extremely effective at absorbing sound and vibration. It is also used as radiation shielding for X-ray equipment and nuclear reactors. Oxides of Lead are used in producing fine "crystal glass" and "flint glass" of a high index of refraction for achromatic lenses. Lead ceramics and crystalline material have a wide range of industrial and optical applications, including infrared detection and imaging. Lead-based semiconductors, such as lead telluride, lead selenide and lead antimonide are finding application in photovoltaic (solar energy) cells and infra red detectors. Lead was first discovered by Early Man.
Selenium is a Block P, Group 16, Period 4 element. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electronic configuration is [Ar] 3d10 4s2 4p4. In its elemental form selenium's CAS number is 7782-49-2. The selenium atom has a radius of 116.pm and it's Van der Waals radius is 190.pm. The EPA does not classify selenium as carcinogenic, although selenium sulfide is a probable carcinogen. Selenates and selenites which are compounds of selenium, are highly toxic. Hydrogen selenide gas (SeH2) is the most acutely toxic compound of selenium. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. of photocells and exposure meters for photographic use, as well as solar cells. Below its melting point, selenium is a p-type semiconductor and has many uses in electronic and solid-state applications. Selenium is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Selenium was first discovered by Jons Berzelius in 1817. The origin of the name Selenium comes from the Greek word "Selênê" meaning moon. See selenium 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.
[Pain and fear of movement in the elderly : The need
for an interdisciplinary approach.]. Leonhardt C, Laekeman M. Schmerz. 2010 Oct 6. [Epub ahead of print]
German. PubMed PMID: 20922547.
The phosphatidyl inositol
3-kinase/AKT signaling pathway in breast cancer. Castaneda CA, Cortes-Funes H, Gomez HL, Ciruelos EM. Cancer Metastasis Rev. 2010 Oct
5. [Epub ahead of print] PubMed PMID: 20922461.
Effect of
diet-induced weight loss on endothelial dysfunction: early improvement after the
first week of dieting. Mavri A, Poredoš P, Suran D, Gaborit B, Juhan-Vague I, Poredoš P. Heart Vessels. 2010 Oct 5. [Epub ahead of print] PubMed
PMID: 20922535.
Clinicopathological Significance of Macrophage Migration Inhibitory Factor and
its Relation with P53 in Gastric Cancer. Nabizadeh Marvast M, Sima HR, Ghaffarzadehgan K, Taghizadeh Kermani A, Norouzi
N. J Gastrointest Cancer. 2010 Oct 5. [Epub
ahead of print] PubMed PMID: 20922580.
Toxic effect of
gestational exposure to nonylphenol on F1 male rats. Jie X, Yang W, Jie Y, Hashim JH, Liu XY, Fan QY, Yan L. Birth Defects Res B Dev
Reprod Toxicol. 2010 Oct 4. [Epub ahead of print] PubMed PMID: 20922811.
Bismuth- and
lead-texaphyrin complexes: towards potential a-core emitters for radiotherapy.
Preihs C, Arambula JF, Lynch VM, Siddik ZH, Sessler JL. Chem Commun (Camb). 2010 Oct 4. [Epub ahead of print] PubMed PMID: 20922235.
Tuning the HOMO
Energy Levels of Organic Dyes for Dye-Sensitized Solar Cells Based on Br(-)/Br(3)
(-) Electrolytes. Teng C, Yang X, Li S, Cheng M, Hagfeldt A, Wu LZ, Sun L. Chemistry. 2010 Oct 4. [Epub ahead of print] PubMed PMID:
20922716.
Energetic features of copper and lead sorption by
innovative aminoalcohol-functionalized cobalt phyllosilicates. Melo Jr MA, Airoldi C. Dalton Trans. 2010
Oct 4. [Epub ahead of print] PubMed PMID: 20922219.
Controlling ligand surface
density optimizes nanoparticle binding to ICAM-1. Fakhari A, Baoum A, Siahaan TJ, Le KB, Berkland C. J Pharm Sci. 2010 Oct 4. [Epub
ahead of print] PubMed PMID: 20922813.
Effect of autogenous
cortical bone grafting in conjunction with guided tissue regeneration in the
treatment of intraosseous periodontal defects. Keles GC, Sumer M, Cetinkaya BO, Tutkun F, Simsek SB. Eur J Dent. 2010 Oct;4(4):403-11.
PubMed PMID: 20922160.
Pacemaker-associated
thrombotic occlusion of the inferior vena cava causing liver failure. Schroeter T, Dähnert I, Doll N, Mohr FW, Borger MA. Thorac
Cardiovasc Surg. 2010 Oct;58(7):431-3. Epub 2010 Oct 4. PubMed PMID: 20922629.
Functional mechanisms for human tumor suppressors. Sun W, Yang J. J Cancer.
2010 Sep 15;1:136-40. PubMed PMID: 20922055.
[Aging by the
perspective of elderly caregivers.]. Garbin CA, Sumida DH, Moimaz SA, Prado RL, Silva MM. Cien Saude Colet. 2010 Sep;15(6):2941-8.
Portuguese. PubMed PMID: 20922303.
[Native vascular access for hemodialysis in patients with
diabetes: a single-center experience.]. David P, Navino C, Capurro F, De Mauri A, Chiarinotti D, Ruva CE, De Maria M,
Brustia M, De Leo M. G Ital Nefrol. 2010 Sep-Oct;27(5):522-6.
Italian. PubMed PMID: 20922684.
[Use of oral anticoagulants to prevent central venous
catheter-related thrombosis in hemodialysis.]. Mandolfo S, Gallieni M. G Ital Nefrol. 2010
Sep-Oct;27(5):490-7. Italian. PubMed PMID: 20922680.
[The role of terlipressin in hepatorenal syndrome.].
Forcellini S, Fabbian F. G Ital Nefrol. 2010 Sep-Oct;27(5):469-76. Italian. PubMed PMID: 20922678.
[Peritoneal dialysis: a time-limited therapy because of
encapsulating peritoneal sclerosis? No, but due attention is warranted.]. Corciulo R. G Ital
Nefrol. 2010 Sep-Oct;27(5):448-55. Italian. PubMed PMID: 20922675.
Dementia case management
effectiveness on health care costs and resource utilization: a systematic review
of randomized controlled trials. Pimouguet C, Lavaud T, Dartigues JF, Helmer C. J Nutr Health Aging. 2010;14(8):669-76. PubMed
PMID: 20922344.
Editorial : health economics and health policy issues in Alzheimer l
s disease. Rapp T. J Nutr Health Aging. 2010;14(8):630-2. PubMed PMID: 20922338.
[Autoimmunity and autoimmune syndrome: norm and pathology]. Vestn Ross Akad
Med Nauk. 2010;(8):3-6. Russian. PubMed PMID: 20922842.
Toenail selenium status and the risk of Barrett's esophagus: the Netherlands Cohort Study.
Steevens J, Schouten LJ, Driessen AL, Huysentruyt CJ, Keulemans YC, Goldbohm RA, van den Brandt PA.
Cancer Causes Control. 2010 Oct 10. [Epub ahead of print]PMID: 20936529 [PubMed - as supplied by publisher]Related citations
Promotion of Growth in Mungbean (Phaseolus aureus Roxb.) by Selenium is Associated with Stimulation of Carbohydrate Metabolism.
Malik JA, Kumar S, Thakur P, Sharma S, Kaur N, Kaur R, Pathania D, Bhandhari K, Kaushal N, Singh K, Srivastava A, Nayyar H.
Biol Trace Elem Res. 2010 Oct 9. [Epub ahead of print]PMID: 20936436 [PubMed - as supplied by publisher]Related citations
Transition metal chemistry of cyclodiphosphanes containing phosphine and amide-phosphine functionalities: Formation of a stable dipalladium(II) complex containing a Pd-P s-bond.
Balakrishna MS, Venkateswaran R, Mague JT.
Dalton Trans. 2010 Oct 8. [Epub ahead of print]PMID: 20936211 [PubMed - as supplied by publisher]Related citations
Associations between blood metals and fecundity among women residing in New York State.
Bloom MS, Louis GM, Sundaram R, Kostyniak PJ, Jain J.
Reprod Toxicol. 2010 Oct 6. [Epub ahead of print]PMID: 20933593 [PubMed - as supplied by publisher]Related citations
The protective role of selenium in recalcitrant Acer saccharium L. seeds subjected to desiccation.
Pukacka S, Ratajczak E, Kalemba E.
J Plant Physiol. 2010 Oct 6. [Epub ahead of print]PMID: 20933296 [PubMed - as supplied by publisher]Related citations
Trace element concentrations in nesting flatback turtles (Natator depressus) from Curtis Island, Queensland, Australia.
Ikonomopoulou MP, Olszowy H, Limpus C, Francis R, Whittier J.
Mar Environ Res. 2010 Sep 25. [Epub ahead of print]PMID: 20933265 [PubMed - as supplied by publisher]Related citations
Correlation between serum selenium level and febrile seizures.
Mahyar A, Ayazi P, Fallahi M, Javadi A.
Pediatr Neurol. 2010 Nov;43(5):331-4.PMID: 20933176 [PubMed - in process]Related citations
Anti-Tumor Activity of Aloe vera Against DMBA/Croton Oil-Induced Skin Papillomagenesis in Swiss Albino Mice.
Saini M, Goyal PK, Chaudhary G.
J Environ Pathol Toxicol Oncol. 2010;29(2):127-35.PMID: 20932247 [PubMed - in process]Related citations
Aluminosilicate Relatives: Chalcogenoaluminogermanates Rb(3)(AlQ(2))(3)(GeQ(2))(7) (Q = S, Se).
Rothenberger A, Shafaei-Fallah M, Kanatzidis MG.
Inorg Chem. 2010 Oct 8. [Epub ahead of print]PMID: 20932019 [PubMed - as supplied by publisher]Related citations
A Nutrient Approach to Prostate Cancer Prevention: The Selenium and Vitamin E Cancer Prevention Trial (SELECT).
Dunn BK, Richmond ES, Minasian LM, Ryan AM, Ford LG.
Nutr Cancer. 2010 Oct;62(7):896-918.PMID: 20924966 [PubMed - in process]Related citations
Serum levels of selenium in patients with breast cancer before and after treatment of external beam radiotherapy.
Franca CA, Nogueira CR, Ramalho A, Carvalho AC, Vieira SL, Penna AB.
Ann Oncol. 2010 Oct 5. [Epub ahead of print]PMID: 20924074 [PubMed - as supplied by publisher]Related citations
Kenji Soda--researching enzymes with the spirit of an alpinist.
Yoshimura T, Mihara H, Ohshima T, Tanizawa K.
J Biochem. 2010 Oct;148(4):371-9.PMID: 20924059 [PubMed - in process]Related citations
Inhibitory effect of arsenic on aerobic gut flora in rat.
Choudhry ZK, Misbahuddin M, Hosain AK, Saleh AA.
Bangladesh Med Res Counc Bull. 2009 Dec;35(3):79-83.PMID: 20922909 [PubMed - in process]Related citations
[Endemic and biogeochemical features of the territory of Chuvash Republic]
[No authors listed]
Vestn Ross Akad Med Nauk. 2010;(8):40-6. Russian. PMID: 20922843 [PubMed - in process]Related citations
Interaction of uranyl with Se(IV) and Se(VI) in aqueous acid solutions by means of capillary electrophoresis.
Sladkov V.
Electrophoresis. 2010 Oct 4. [Epub ahead of print]PMID: 20922762 [PubMed - as supplied by publisher]Related citations
Ensemble Modeling Coupled with Six Element Concentrations in Human Blood for Cancer Diagnosis.
Chen H, Tan C, Wu T.
Biol Trace Elem Res. 2010 Oct 5. [Epub ahead of print]PMID: 20922500 [PubMed - as supplied by publisher]Related citations
Use of dietary vitamin E and selenium (Se) to increase the shelf life of modified atmosphere packaged light lamb meat.
Ripoll G, Joy M, Muñoz F.
Meat Sci. 2010 Sep 18. [Epub ahead of print]PMID: 20920835 [PubMed - as supplied by publisher]Related citations
Impacts of maternal selenium and nutritional level on growth, adiposity, and glucose tolerance in female offspring in sheep.
Vonnahme KA, Luther JS, Reynolds LP, Hammer CJ, Carlson DB, Redmer DA, Caton JS.
Domest Anim Endocrinol. 2010 Nov;39(4):240-8. Epub 2010 Jul 25.PMID: 20920781 [PubMed - in process]Related citations
Mutations disrupting selenocysteine formation cause progressive cerebello-cerebral atrophy.
Agamy O, Ben Zeev B, Lev D, Marcus B, Fine D, Su D, Narkis G, Ofir R, Hoffmann C, Leshinsky-Silver E, Flusser H, Sivan S, Söll D, Lerman-Sagie T, Birk OS.
Am J Hum Genet. 2010 Oct 8;87(4):538-44.PMID: 20920667 [PubMed - in process]Related citations
Developmental toxicity of selenium to Dolly Varden char (Salvelinus malma).
McDonald BG, Debruyn AM, Elphick JR, Davies M, Bustard D, Chapman PM.
Environ Toxicol Chem. 2010 Aug 3. [Epub ahead of print]PMID: 20891017 [PubMed - as supplied by publisher]Related citations
American Elements is a copyrighted U.S. Trademark. All rights reserved.