American Elements specializes in producing Holmium Bromide in an ultra dry form for use as a compound in semiconductors and other high purity applications. Ultra Dry Holmium Bromide is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered.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 Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.
Holmium is a Block F, Group 3, Period 6 element. The number of electrons in each of Holmium's shells is 2, 8, 18, 29, 8, 2 and its electronic configuration is [Xe] 4f11 6s2. In its elemental form holmium's CAS number is 7440-60-0. The holmium atom has a radius of 174.3.pm and it's Van der Waals radius is unknown. Holmium is only slightly toxic. Holmium has the highest magnetic moment (10.6µB) of any naturally occurring element. Because of this it has been used to create the highest known magnetic fields by placing it within high strength magnets as a pole piece or magnetic flux concentrator. This magnetic property also has value in yttrium-iron-garnet(YIG) lasers for microwave equipment. Holmium 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. Holmium lases at a human eye safe 2.08 microns allowing its use in a variety of medical and dental applications in both yttrium-aluminum-garnet (YAG) and yttrium-lanthanum-fluoride (YLF) solid state lasers. The wavelength allows for use in silica fibers designed for shorter wavelengths while still providing the cutting strength of longer wave length equipment. Holmium was first discovered by J.L. Soret in 1878. See Holmium research below.
Boron is a Block P, Group 13, Period 2 element. The number of electrons in each of Boron's shells is 2, 3 and its electronic configuration is [He] 2s2 2p1. In its elemental form boron's CAS number is 7440-42-8. The boron atom has a radius of 79.5.pm and it's Van der Waals radius is 200.pm. Boron is not toxic. Boron has an energy band gap of 1.50 to 1.56 eV, which is higher than that of either silicon or germanium. Optical characteristics include transmitting portions of the infrared. Boron is a poor conductor of electricity at room temperature but a good conductor at high temperature. Boron in its elemental form is not toxic. Amorphous boron is used in pyrotechnic flares to provide a distinctive green color, and in rockets as an igniter Boric acid is also an important boron compound with major markets in textile products. Boron compounds are also extensively used in the manufacture of borosilicate glasses. The isotope Boron-10 is used as a control for nuclear reactors, as a shield for nuclear radiation, and in instruments used for detecting neutrons. Boron nitride has remarkable properties and can be used to make a material as hard as diamond. The nitride also behaves like an electrical insulator but conducts heat like a metal. Boron also has lubricating properties similar to graphite. Boron was first discovered by Sir Humphry Davy and J.L Gay-Lussac in 1808. The name Boron originates from a combination of carbon and the Arabic word 'buraqu meaning borax. See Boron research below.
EX-VIVO COMPARISON OF AVAILABLE MORCELLATION DEVICES DURING HOLEP THROUGH OBJECTIVE PARAMETERS.
Cornu JN, Terrasa JB, Lukacs B.
J Endourol. 2012 Jan 19. [Epub ahead of print]
PMID:
22260635
[PubMed - as supplied by publisher]
[A meta-analysis of holmium laser enucleation of the prostate for benign prostatic hyperplasia].
Zhao CB, Li JC, Yuan PQ, Hong YQ, Lu B, Zhao SC.
Zhonghua Nan Ke Xue. 2011 Dec;17(12):1112-20. Chinese.
PMID:
22235682
[PubMed - in process]
[Causes, location and management of BPH surgery-related urethral stricture].
Long Z, He LY, Jiang XZ, Zhang YC, Wang GM, Pei XM, Huang K.
Zhonghua Nan Ke Xue. 2011 Dec;17(12):1097-100. Chinese.
PMID:
22235678
[PubMed - in process]
Laser Lithotripsy to Treat Basket Impaction during Mechanical Lithotripsy of a Pancreatic Duct Stone.
Hlaing C, Tarnasky P, Hambrick D.
JOP. 2011 Dec 23;13(1):101-3.
PMID:
22233959
[PubMed - in process]
Outpatient therapeutic nuclear oncology.
Turner JH.
Ann Nucl Med. 2012 Jan 7. [Epub ahead of print]
PMID:
22222779
[PubMed - as supplied by publisher]
Outcomes of transurethral removal of intravesical or intraurethral mesh following midurethral sling surgery.
Jo DJ, Lee YS, Oh TH, Ryu DS, Kwak KW.
Korean J Urol. 2011 Dec;52(12):829-34. Epub 2011 Dec 20.
PMID:
22216395
[PubMed - in process]
The efficacy and safety of ureteroscopy for ureteral calculi in pregnancy: our experience in 32 patients.
Bozkurt Y, Penbegul N, Soylemez H, Atar M, Sancaktutar AA, Yildirim K, Sak ME.
Urol Res. 2012 Jan 4. [Epub ahead of print]
PMID:
22215294
[PubMed - as supplied by publisher]
catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?O,O')holmium(III)] [silver(I)-di-?-sulfido-tungstate(VI)-di-?-sulfido]].
Zeng J, Tang G, Wei C.
Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):m1724-5. Epub 2011 Nov 9.
PMID:
22199530
[PubMed - in process]
Selected Trace Elements in the Sacramento River, California: Occurrence and Distribution.
Taylor HE, Antweiler RC, Roth DA, Alpers CN, Dileanis P.
Arch Environ Contam Toxicol. 2011 Dec 23. [Epub ahead of print]
PMID:
22193863
[PubMed - as supplied by publisher]
Ureterorenoscopy with Holmium-Yttrium-Aluminum-Garnet Fragmentation Is a Safe and Efficient Technique for Stone Treatment in Patients with a Body Mass Index Superior to 30 kg/m(2).
Delorme G, Huu YN, Lillaz J, Bernardini S, Chabannes E, Guichard G, Bittard H, Kleinclauss F.
J Endourol. 2012 Jan 12. [Epub ahead of print]
PMID:
22192111
[PubMed - as supplied by publisher]
Ureteroscopic Lithotripsy for Distal Ureteral Calculi: Comparative Evaluation of Three Different Lithotriptors.
Salvadó JA, Mandujano R, Saez I, Saavedra A, Dell'oro A, Dominguez J, Trucco C.
J Endourol. 2012 Jan 4. [Epub ahead of print]
PMID:
22192101
[PubMed - as supplied by publisher]
[Relationship between morcellation efficiency and enucleated tissue weight in holmium laser enucleation of the prostate (HoLEP) for patients with benign prostatic hyperplasia].
Ishikawa R, Shitara T, Wakatabe Y, Kubo S, Hirayama T, Fujita T, Iwamura M, Baba S.
Nihon Hinyokika Gakkai Zasshi. 2011 Sep;102(5):675-8. Japanese.
PMID:
22191275
[PubMed - in process]
First collaborative experience with thulium laser ablation of localized upper urinary tract urothelial tumors using retrograde intra-renal surgery.
Defidio L, De Dominicis M, Di Gianfrancesco L, Fuchs G, Patel A.
Arch Ital Urol Androl. 2011 Sep;83(3):147-53.
PMID:
22184839
[PubMed - in process]
Treatment of ectopic intratracheal thyroid with a holmium laser.
Hall AB, Gifford TO, Sabatini PR.
Mil Med. 2011 Nov;176(11):1325-6.
PMID:
22165664
[PubMed - indexed for MEDLINE]
Characteristics of patients with fluid extravasation during retrograde ureteroscopic holmium laser lithotripsy for renal calculi.
Luo XM, Zhang C, Qian HJ, Song C, Yang SX.
Saudi Med J. 2011 Dec;32(12):1251-5.
PMID:
22159379
[PubMed - in process]
Potential of high-Z contrast agents in clinical contrast-enhanced computed tomography.
Nowak T, Hupfer M, Brauweiler R, Eisa F, Kalender WA.
Med Phys. 2011 Dec;38(12):6469.
PMID:
22149830
[PubMed - in process]
Successful outcome of flexible ureteroscopy with holmium laser lithotripsy for renal stones 2 cm or greater.
Takazawa R, Kitayama S, Tsujii T.
Int J Urol. 2011 Dec 6. doi: 10.1111/j.1442-2042.2011.02931.x. [Epub ahead of print]
PMID:
22145599
[PubMed - as supplied by publisher]
A case of large bladder hemangioma successfully treated with endoscopic yttrium aluminium garnet laser irradiation.
Takemoto J, Yamazaki Y, Sakai K.
Int J Urol. 2011 Dec;18(12):854-6. doi: 10.1111/j.1442-2042.2011.02879.x. Epub 2011 Oct 20.
PMID:
22142464
[PubMed - in process]
[Impacts of different transurethral prostatic resection procedures on male sexual function: meta-analysis of randomized controlled trials].
Zong HT, Peng XX, Yang CC, Zhang Y.
Zhonghua Nan Ke Xue. 2011 Nov;17(11):1014-8. Chinese.
PMID:
22141274
[PubMed - in process]
Single-operator cholangioscopy-guided laser lithotripsy in patients with difficult biliary and pancreatic ductal stones (with videos).
Maydeo A, Kwek BE, Bhandari S, Bapat M, Dhir V.
Gastrointest Endosc. 2011 Dec;74(6):1308-14.
PMID:
22136776
[PubMed - in process]
Recent Research & Development for Bromides
Aryl hydrocarbon receptor activation by aminoflavone: New molecular target for renal cancer treatment.
Callero MA, Suárez GV, Luzzani G, Itkin B, Nguyen B, Loaiza-Perez AI.
Int J Oncol. 2012 Apr 5. doi: 10.3892/ijo.2012.1427. [Epub ahead of print]
PMID:
22485252
[PubMed - as supplied by publisher]
Marine bromophenol bis(2,3-dibromo-4,5-dihydroxybenzyl) ether, induces mitochondrial apoptosis in K562 cells and inhibits topoisomerase I in vitro.
Liu M, Zhang W, Wei J, Qiu L, Lin X.
Toxicol Lett. 2012 Mar 29. [Epub ahead of print]
PMID:
22484147
[PubMed - as supplied by publisher]
One-pot synthesis of aptamer functionalized silver nanoclusters for cell-type specific imaging.
Li J, Zhong X, Cheng F, Zhang JR, Jiang LP, Zhu JJ.
Anal Chem. 2012 Apr 7. [Epub ahead of print]
PMID:
22482827
[PubMed - as supplied by publisher]
Metabolic Activation of Prasugrel : Nature of the two Competitive Pathways Resulting in the Opening of its Thiophene Ring.
Dansette PM, Rosi J, Debernardi J, Bertho G, Mansuy D.
Chem Res Toxicol. 2012 Apr 6. [Epub ahead of print]
PMID:
22482514
[PubMed - as supplied by publisher]
GnRH-III based multifunctional drug delivery systems containing daunorubicin and methotrexate.
Leurs U, Lajkó E, Mezo G, Orbán E, Ohlschläger P, Marquardt A, Kohidai L, Manea M.
Eur J Med Chem. 2012 Mar 16. [Epub ahead of print]
PMID:
22480495
[PubMed - as supplied by publisher]
Hepatoprotective effects and HSV-1 activity of the hydroethanolic extract of Cecropia glaziovii (embaúba-vermelha) against acyclovir-resistant strain.
Petronilho F, Dal-Pizzol F, Costa GM, Kappel VD, de Oliveira SQ, Fortunato J, Cittadini-Zanette V, Fonseca Moreira JC, Oliveira Simões CM, Dal-Pizzol F, Reginatto FH.
Pharm Biol. 2012 Apr 6. [Epub ahead of print]
PMID:
22480215
[PubMed - as supplied by publisher]
A solution-based nano-plasmonic sensing technique by using gold nanorods.
Ho FH, Wu YH, Ujihara M, Imae T.
Analyst. 2012 Apr 5. [Epub ahead of print]
PMID:
22479700
[PubMed - as supplied by publisher]
In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells.
Soares PR, de Oliveira PL, de Oliveira CM, Kato L, Guillo LA.
Arch Pharm Res. 2012 Mar;35(3):565-71. Epub 2012 Apr 5.
PMID:
22477204
[PubMed - in process]
Role of a novel pyridostigmine bromide-phospholipid nanocomplex in improving oral bioavailability.
Tan QY, Hu NN, Liu GD, Yin HF, Zhang L, Wang H, Lu LY, Zhang JQ.
Arch Pharm Res. 2012 Mar;35(3):499-508. Epub 2012 Apr 5.
PMID:
22477197
[PubMed - in process]
Alkyl-chain disorder in tetraisohexylammonium bromide.
Kelland MA, Thompson AL.
Acta Crystallogr C. 2012 Apr;68(Pt 4):o152-5. Epub 2012 Mar 7.
PMID:
22476146
[PubMed - in process]
Electrosynthesis of a Sc3N@Ih-C80 Methano Derivative from Trianionic Sc3N@Ih-C80.
Li FF, Rodriguez-Fortea A, Peng P, Campos Chavez GA, Poblet JM, Echegoyen L.
J Am Chem Soc. 2012 Apr 5. [Epub ahead of print]
PMID:
22475512
[PubMed - as supplied by publisher]
Adsorption of ß-Casein-Surfactant Mixed Layers at the Air-Water Interface Evaluated by Interfacial Rheology.
Maestro A, Kotsmar C, Javadi A, Miller R, Ortega F, Rubio RG.
J Phys Chem B. 2012 Apr 4. [Epub ahead of print]
PMID:
22475110
[PubMed - as supplied by publisher]
Halogen Oxidation and Halogen Photoelimination Chemistry of a Platinum-Rhodium Heterobimetallic Core.
Cook TR, McCarthy BD, Lutterman DA, Nocera DG.
Inorg Chem. 2012 Apr 4. [Epub ahead of print]
PMID:
22475040
[PubMed - as supplied by publisher]
Antimicrobial studies of unsymmetrical bis-1,2,3-Triazoles.
Banday AH, Shameem SA, Ganai BA.
Org Med Chem Lett. 2012 Apr 4;2(1):13. [Epub ahead of print]
PMID:
22475037
[PubMed - as supplied by publisher]
Nickel-Mediated Inter- and Intramolecular Reductive Cross-Coupling of Unactivated Alkyl Bromides and Aryl Iodides at Room Temperature.
Yan CS, Peng Y, Xu XB, Wang YW.
Chemistry. 2012 Mar 30. doi: 10.1002/chem.201200190. [Epub ahead of print]
PMID:
22473912
[PubMed - as supplied by publisher]
A Bulky Biaryl Phosphine Ligand Allows for Palladium-Catalyzed Amidation of Five-Membered Heterocycles as Electrophiles.
Su M, Buchwald SL.
Angew Chem Int Ed Engl. 2012 Mar 30. doi: 10.1002/anie.201201244. [Epub ahead of print]
PMID:
22473747
[PubMed - as supplied by publisher]
Antiproliferative Activity of Polygonaceae Species from the Carpathian Basin against Human Cancer Cell Lines.
Lajter I, Zupkó I, Molnár J, Jakab G, Balogh L, Vasas A, Hohmann J.
Phytother Res. 2012 Apr 4. doi: 10.1002/ptr.4690. [Epub ahead of print]
PMID:
22473656
[PubMed - as supplied by publisher]
Diastereoselective alkylation reactions of 1-methylcyclohexa-2,5-diene-1-carboxylic acid.
Bennett NJ, Elliott MC, Hewitt NL, Kariuki BM, Morton CA, Raw SA, Tomasi S.
Org Biomol Chem. 2012 Apr 4. [Epub ahead of print]
PMID:
22473327
[PubMed - as supplied by publisher]
Phase-transfer catalytic dichlorocyclopropanation of styrene under the influence of ultrasound conditions - A kinetic study.
Wang ML, Prasad GS.
Ultrason Sonochem. 2012 Mar 7. [Epub ahead of print]
PMID:
22472498
[PubMed - as supplied by publisher]
In vitro targeted imaging and delivery of camptothecin using cetuximab-conjugated multifunctional PLGA-ZnS nanoparticles.
Deepagan VG, Sarmento B, Menon D, Nascimento A, Jayasree A, Sreeranganathan M, Koyakutty M, Nair SV, Rangasamy J.
Nanomedicine (Lond). 2012 Apr;7(4):507-19.
PMID:
22471719
[PubMed - in process]
Proud sponsors of Aeromat 2012. Please join us and our customers & co-sponsors Boeing and ATI on
June 18-20, 2012
in Charlotte, North Carolina