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Showing 25 to 36 of 947 entries
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High-dose methotrexate for the treatment of relapsed central nervous system erdheim-chester disease.

Case reports in hematology

Ho P, Smith C.
PMID: 25031876
Case Rep Hematol. 2014;2014:269359. doi: 10.1155/2014/269359. Epub 2014 Jun 16.

Erdheim-Chester disease (ECD) is a rare multisystem non-Langerhans histiocytosis. CNS involvement is a major complication, which is often rapidly progressive and confers a poor prognosis. However, treatment of CNS ECD is difficult due to poor CNS penetrance by the...

Soft, conformable electrical contacts for organic semiconductors: high-resolution plastic circuits by lamination.

Proceedings of the National Academy of Sciences of the United States of America

Loo YL, Someya T, Baldwin KW, Bao Z, Ho P, Dodabalapur A, Katz HE, Rogers JA.
PMID: 12145323
Proc Natl Acad Sci U S A. 2002 Aug 06;99(16):10252-6. doi: 10.1073/pnas.162128299. Epub 2002 Jul 26.

Soft, conformable electrical contacts provide efficient, noninvasive probes for the transport properties of chemically and mechanically fragile, ultrathin organic semiconducting films. When combined with high-resolution printing and lamination techniques, these soft contacts also form the basis of a powerful...

Direct determination of particle-particle interactions in a 2D plasma dust crystal.

Physical review letters

Hebner GA, Riley ME, Johnson DS, Ho P, Buss RJ.
PMID: 11736454
Phys Rev Lett. 2001 Dec 03;87(23):235001. doi: 10.1103/PhysRevLett.87.235001. Epub 2001 Nov 16.

Particle interactions were directly determined from the lateral compression of two-dimensional plasma dust crystals confined in a parabolic potential well. Measured particle separations combined with an equation of state for the crystal were used to derive values for the...

Using biofunctional magnetic nanoparticles to capture gram-negative bacteria at an ultra-low concentration.

Chemical communications (Cambridge, England)

Gu H, Ho PL, Tsang KW, Yu CW, Xu B.
PMID: 12932056
Chem Commun (Camb). 2003 Aug 07;(15):1966-7. doi: 10.1039/b305421g.

After conjugation to vancomycin (Van), chemically stable and highly magnetic anisotropic FePt magnetic nanoparticles (approximately 4 nm) become water-soluble and capture E. coli at 15 cfu mL(-1).

Observing the creation of electronic feshbach resonances in soft x-ray-induced O2 dissociation.

Science (New York, N.Y.)

Sandhu AS, Gagnon E, Santra R, Sharma V, Li W, Ho P, Ranitovic P, Cocke CL, Murnane MM, Kapteyn HC.
PMID: 19008441
Science. 2008 Nov 14;322(5904):1081-5. doi: 10.1126/science.1164498.

When an atom or molecule is ionized by an x-ray, highly excited states can be created that then decay, or autoionize, by ejecting a second electron from the ion. We found that autoionization after soft x-ray photoionization of molecular...

Wavelength conversion in GaAs micro-ring resonators.

Optics letters

Absil PP, Hryniewicz JV, Little BE, Cho PS, Wilson RA, Joneckis LG, Ho PT.
PMID: 18064109
Opt Lett. 2000 Apr 15;25(8):554-6. doi: 10.1364/ol.25.000554.

Tightly confined, low-loss waveguides in highly nonlinear materials permit nonlinear optical interactions to occur over much shorter distances than do fibers. The nonlinear interactions are further enhanced in resonators. Both theory and experiment of enhanced four-wave mixing in micro-ring...

Unraveling complex three-body photodissociation dynamics of dimethyl sulfoxide: a femtosecond time-resolved spectroscopic study.

The journal of physical chemistry. A

Ho JW, Chen WK, Cheng PY.
PMID: 18826199
J Phys Chem A. 2008 Oct 23;112(42):10453-68. doi: 10.1021/jp804847y. Epub 2008 Oct 01.

Photodissociation of dimethyl sulfoxide at 200 nm has been studied using femtosecond time-resolved spectroscopy. The temporal evolutions of the initial state, intermediates, and products (CH3 and SO) were measured by means of fs pump-probe mass-selected multiphoton ionization and laser-induced...

Enhanced linear and nonlinear optical phase response of AlGaAs microring resonators.

Optics letters

Heebner JE, Lepeshkin NN, Schweinsberg A, Wicks GW, Boyd RW, Grover R, Ho PT.
PMID: 15072386
Opt Lett. 2004 Apr 01;29(7):769-71. doi: 10.1364/ol.29.000769.

We have constructed and characterized several optical microring resonators with scale sizes of the order of 10 microm. These devices are intended to serve as building blocks for engineerable linear and nonlinear photonic media. Light is guided vertically by...

Nonsequential double ionization as a completely classical photoelectric effect.

Physical review letters

Ho PJ, Panfili R, Haan SL, Eberly JH.
PMID: 15783962
Phys Rev Lett. 2005 Mar 11;94(9):093002. doi: 10.1103/PhysRevLett.94.093002. Epub 2005 Mar 09.

We introduce a unified and simplified theory of atomic double ionization. Our results show that at high laser intensities (I>/=10(14) W/cm(2)) purely classical correlation is strong enough to account for all of the main features observed in experiments to...

Structural, photophysical, and catalytic properties of Au(I) complexes with 4-substituted pyridines.

Inorganic chemistry

Lin JC, Tang SS, Vasam CS, You WC, Ho TW, Huang CH, Sun BJ, Huang CY, Lee CS, Hwang WS, Chang AH, Lin IJ.
PMID: 18318488
Inorg Chem. 2008 Apr 07;47(7):2543-51. doi: 10.1021/ic701872f. Epub 2008 Mar 05.

Ionic gold(I) complexes with general formula of [Au(Py)2][AuCl2] and [Au(Py)2][PF6] (Py = 4-substituted pyridines) have been synthesized. Structures of five Au(I) complexes and a Ag(I) complex were determined by single crystal X-ray diffraction. Evidence for cationic aggregation of [Au(py)2][PF6]...

Effects of isobutyl 2-cyanoacrylate polymer on cultured cells derived from murine cerebral microvessels.

Toxicology in vitro : an international journal published in association with BIBRA

Vinters HV, Ho HW.
PMID: 20702356
Toxicol In Vitro. 1988;2(1):37-41. doi: 10.1016/0887-2333(88)90035-5.

The initial and delayed effects of isobutyl 2-cyanoacrylate (IBCA) polymer on cells cultured from the wall of mouse cerebral microvessels were examined using a simple cytotoxicity assay. Cell cultured media were conditioned by exposure to IBCA polymer for 24-hr...

Role of delta-hole-doped interfaces at Ohmic contacts to organic semiconductors.

Physical review letters

Zhou M, Chua LL, Png RQ, Yong CK, Sivaramakrishnan S, Chia PJ, Wee AT, Friend RH, Ho PK.
PMID: 19659303
Phys Rev Lett. 2009 Jul 17;103(3):036601. doi: 10.1103/PhysRevLett.103.036601. Epub 2009 Jul 15.

An electromodulated absorption spectroscopy study of the contact between an organic semiconductor (OSC) poly(2,5-dialkoxy-p-phenylenevinylene) and p-doped poly(3,4-ethylenedioxythiophene) electrodes of different work functions (phivac) reveals direct evidence for the formation of a hole-doped layer at the OSC interface in equilibrium...

Showing 25 to 36 of 947 entries