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Showing 1 to 12 of 353 entries
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Colossal Ultraviolet Photoresponsivity of Few-Layer Black Phosphorus.

ACS nano

Wu J, Koon GK, Xiang D, Han C, Toh CT, Kulkarni ES, Verzhbitskiy I, Carvalho A, Rodin AS, Koenig SP, Eda G, Chen W, Neto AH, Özyilmaz B.
PMID: 26207324
ACS Nano. 2015 Aug 25;9(8):8070-7. doi: 10.1021/acsnano.5b01922. Epub 2015 Jul 30.

Black phosphorus has an orthorhombic layered structure with a layer-dependent direct band gap from monolayer to bulk, making this material an emerging material for photodetection. Inspired by this and the recent excitement over this material, we studied the optoelectronics...

Three-Dimensional Flexible All-Organic Conductors for Multifunctional Wearable Applications.

ACS applied materials & interfaces

Moon IK, Yoon S, Lee HU, Kim SW, Oh J.
PMID: 29067808
ACS Appl Mater Interfaces. 2017 Nov 22;9(46):40580-40592. doi: 10.1021/acsami.7b10181. Epub 2017 Nov 07.

Wearable textile electrodes based on π-conjugated polymers are appealing alternatives to carbon fabrics, conductive yarns, or metal wires because of their design flexibility, low cost, flexibility, and high throughput. This provides the benefits of both electronics and textiles. Herein,...

SBRT Treatment of Multiple Recurrent Auricular Squamous Cell Carcinomas Following Surgical and Conventional Radiation Treatment Failure.

Cureus

Brotherston D, Poon I.
PMID: 26488000
Cureus. 2015 Sep 17;7(9):e325. doi: 10.7759/cureus.325.

The treatment of recurrent skin cancers of the head and neck following curative doses of radiotherapy and/or surgery is usually palliative radiation therapy (RT) but with mediocre control rates leading to symptomatic local recurrences. We present a 93-year-old male...

Involvement of the CXCL12 System in the Stimulatory Effects of Prenatal Exposure to High-Fat Diet on Hypothalamic Orexigenic Peptides and Behavior in Offspring.

Frontiers in behavioral neuroscience

Poon K, Barson JR, Shi H, Chang GQ, Leibowitz SF.
PMID: 28567007
Front Behav Neurosci. 2017 May 17;11:91. doi: 10.3389/fnbeh.2017.00091. eCollection 2017.

Exposure to a high fat diet (HFD) during gestation stimulates neurogenesis and expression of hypothalamic orexigenic neuropeptides that affect consummatory and emotional behaviors. With recent studies showing a HFD to increase inflammation, this report investigated the neuroinflammatory chemokine, CXCL12,...

Electrospray ionization mass spectrometry for analysis of low-molecular-weight anticancer drugs and their analogues.

Journal of the American Society for Mass Spectrometry

Poon GK, Bisset GM, Mistry P.
PMID: 24227645
J Am Soc Mass Spectrom. 1993 Jul;4(7):588-95. doi: 10.1016/1044-0305(93)85020-X.

In this study, several anticancer drugs and their analogues consisting of organic and organometallic compounds were analyzed by electrospray ionization mass spectrometry (ESI/MS) using a quadrupole mass spectrometer. Protonated molecular ions [M+H](+) were observed for all of the compounds...

Binary phase-shift keying by coupling modulation of microrings.

Optics express

Sacher WD, Green WM, Gill DM, Assefa S, Barwicz T, Khater M, Kiewra E, Reinholm C, Shank SM, Vlasov YA, Poon JK.
PMID: 25321234
Opt Express. 2014 Aug 25;22(17):20252-9. doi: 10.1364/OE.22.020252.

We propose a coupling-modulated microring in an add-drop configuration for binary phase-shift keying (BPSK), where data is encoded as 0 and π radian phase-shifts on the optical carrier. The device uses the π radian phase-flip across the zero coupling...

Palliative embolisation for intrapulmonary shunting in lepidic predominant adenocarcinoma of the lung.

Respiratory medicine case reports

Tan JY, Walters DL, Poon K, Zimmerman P, Aldons P.
PMID: 26236621
Respir Med Case Rep. 2015 May 27;15:121-4. doi: 10.1016/j.rmcr.2015.03.010. eCollection 2015.

Lepidic predominant adenocarcinoma (LPA) (formerly known as bronchioalveolar carcinoma) has rarely been reported to cause refractory hypoxia with intrapulmonary shunting [1-7]. We describe a case who underwent the palliative strategy of intravascular right lower pulmonary artery embolisation with an...

Wide-range tuning of polymer microring resonators by the photobleaching of CLD-1 chromophores.

Optics letters

Poon JK, Huang Y, Paloczi GT, Yariv A, Zhang C, Dalton LR.
PMID: 15552652
Opt Lett. 2004 Nov 15;29(22):2584-6. doi: 10.1364/ol.29.002584.

We present a simple and effective method for the postfabrication trimming of optical microresonators. We photobleach CLD-1 chromophores to tune the resonance wavelengths of polymer microring resonator optical notch filters. A maximum wavelength shift of -8.73 nm is observed....

Expression pattern of immunoproteasome subunits in human thymus.

Immune network

Oh KI, Seo JN.
PMID: 20157616
Immune Netw. 2009 Dec;9(6):285-8. doi: 10.4110/in.2009.9.6.285. Epub 2009 Dec 31.

The expression pattern of immunoproteasomes in human thymus has not been analyzed but may have important consequences during thymic selection. Here we examined the expression patterns of immunoproteasome subunits in fetal and adult thymic tissues by immunohistochemistry and found...

Quantitative monitoring of corticosteroids in cosmetic products manufactured in Korea using LC-MS/MS.

Forensic science international

Nam YS, Kwon IK, Lee Y, Lee KB.
PMID: 22284071
Forensic Sci Int. 2012 Jul 10;220(1):e23-8. doi: 10.1016/j.forsciint.2011.12.011. Epub 2012 Jan 28.

Some cosmetic products manufactured in Korea for the treatment of eczema, seborrhea and psoriasis have been suspected to contain anti-inflammatory corticosteroids such as prednisolone, hydrocortisone, betamethasone, dexamethasone and triamcinolone acetonide without these ingredients being indicated on the label. Due...

Spectroscopic and computational insight into the intermolecular interactions between Zwitter-type ionic liquids and water molecules.

Chemphyschem : a European journal of chemical physics and physical chemistry

Park H, Jung YM, Yang SH, Shin W, Kang JK, Kim HS, Lee HJ, Hong WH.
PMID: 20373319
Chemphyschem. 2010 Jun 07;11(8):1711-7. doi: 10.1002/cphc.200900925.

Geometric and conformational changes of zwitter-type ionic liquids (ZILs) due to hydrogen-bonding interactions with water molecules are investigated by density functional theory (DFT), two-dimensional IR correlation spectroscopy (2D IR COS), and pulsed-gradient spin-echo NMR (PGSE NMR). Simulation results indicate...

Autoindexing with outlier rejection and identification of superimposed lattices.

Journal of applied crystallography

Sauter NK, Poon BK.
PMID: 20502598
J Appl Crystallogr. 2010 Jun 01;43:611-616. doi: 10.1107/S0021889810010782. Epub 2010 Apr 30.

Constructing a model lattice to fit the observed Bragg diffraction pattern is straightforward for perfect samples, but indexing can be challenging when artifacts are present, such as poorly shaped spots, split crystals giving multiple closely aligned lattices and outright...

Showing 1 to 12 of 353 entries