钬粉
钬粉结构式
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常用名 | 钬粉 | 英文名 | Holmium |
|---|---|---|---|---|
| CAS号 | 7440-60-0 | 分子量 | 164.930 | |
| 密度 | 8.8 g/mL at 25 °C(lit.) | 沸点 | 2695 °C | |
| 分子式 | Ho | 熔点 | 1474 °C | |
| MSDS | 中文版 美版 | 闪点 | N/A |
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Deactivation effects of the lowest excited state of Ho3+ at 2.9 μm emission introduced by Pr3+ ions in LiLuF4 crystal.
Optics Letters 37(24) , 5241-3, (2012) The use of Pr3+ codoping for enhancement of the Ho3+:5I6 →5I7 mid-IR emissions were investigated in the LiLuF4 crystal for the first time. It was found that Pr3+ greatly increased Ho3+ 2.9 μm emission by depopulating the Ho3+:5I7 level while having little inf... |
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Holmium-lipiodol-alginate microspheres for fluoroscopy-guided embolotherapy and multimodality imaging.
Int. J. Pharm. 482(1-2) , 47-53, (2015) Embolotherapy is a minimally invasive transcatheter technique aiming at reduction or complete obstruction of the blood flow by infusion of micro-sized particles in order to induce tumor regression. A major drawback of the current commercially available and cl... |
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Highly sensitive and selective cartap nanosensor based on luminescence resonance energy transfer between NaYF4:Yb,Ho nanocrystals and gold nanoparticles.
Talanta 114 , 124-30, (2013) Fluorescent detection is an attractive method for the detection of toxic chemicals. However, most chemosensors that are currently utilized in fluorescent detection are based on organic dyes or quantum dots, which suffer from instability, high background noise... |
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Infrared to visible upconversion in Ho³+/Yb³+ co-doped Y₂ O₃ phosphor: effect of laser input power and external temperature.
Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 97 , 825-9, (2012) In the present paper, Ho(3+) doped and Ho(3+)/Yb(3+) co-doped Y(2)O(3) phosphors have been synthesized using solution combustion technique and characterized for its structure and upconversion (UC) fluorescence as a function of Yb(3+) concentration. Effect of ... |
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Determinants of Holmium:Yttrium–aluminum-garnet Laser Time and Energy During Ureteroscopic Laser Lithotripsy
Urology 83(4) , 738-44, (2014) Objective To evaluate the association of preoperative noncontrast computed tomography stone characteristics, laser settings, and stone composition with cumulative holmium:yttrium-aluminum-garnet (Ho:YAG) laser time/energy. |
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Paramagnetic nanoparticles as potential MRI contrast agents: characterization, NMR relaxation, simulations and theory.
MAGMA 25(6) , 467-78, (2012) Paramagnetic nanoparticles, mainly rare earth oxides and hydroxides, have been produced these last few years for use as MRI contrast agents. They could become an interesting alternative to iron oxide particles. However, their relaxation properties are not wel... |
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Microbrachytherapy using holmium-166 acetylacetonate microspheres: a pilot study in a spontaneous cancer animal model.
Brachytherapy 12(2) , 171-7, (2013) Holmium-166 acetylacetonate microspheres ((166)Ho-AcAc-MS) are proposed as an intratumoral radioablation device. This article presents a pilot study in housecats with unresectable liver cancer. Feasibility and tolerability of intratumoral administrations of (... |
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Intratumoral administration of holmium-166 acetylacetonate microspheres: antitumor efficacy and feasibility of multimodality imaging in renal cancer.
PLoS ONE 8(1) , e52178, (2013) The increasing incidence of small renal tumors in an aging population with comorbidities has stimulated the development of minimally invasive treatments. This study aimed to assess the efficacy and demonstrate feasibility of multimodality imaging of intratumo... |
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Neutron-activatable holmium-containing mesoporous silica nanoparticles as a potential radionuclide therapeutic agent for ovarian cancer.
J. Nucl. Med. 54(1) , 111-6, (2013) Mesoporous silica nanoparticles (MSNs) were explored as a carrier material for the stable isotope (165)Ho and, after neutron capture, its subsequent therapeutic radionuclide, (166)Ho (half-life, 26.8 h), for use in radionuclide therapy of ovarian cancer metas... |
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Holmium:YAG lithotripsy for large renal and bladder calculi: strategies for efficient lithotripsy.
J. Endourol. 13(7) , 477-80; discussion 481-2, (1999) Holmium:YAG lithotripsy is effective for all stone compositions, and high success rates may be expected. Large renal and bladder calculi may be treated effectively with Ho:YAG lasertripsy. Using angled optical fibers and increasing power settings may be parti... |