We report a simple, scalable two-step method for direct-write laser fabrication of 3D, porous graphene-like carbon electrodes from polyimide films with integrated contact plugs to underlying metal layers (Au or Ni). Irradiation at high average COlaser power (30 W) and low scan speed (∼18 mm s)leads to formation of 'keyhole' contact plugs through local ablation of polyimide (initial thickness 17m) and graphitization of the plug perimeter wall. Top-surface laser-induced graphene (LIG) electrodes are then formed and connected to the plug by raster patterning at lower laser power (3.
View Article and Find Full Text PDFBackground: Fine needle aspiration (FNA) is a common diagnostic tool used in the initial evaluation of parotid masses. In the literature, variable diagnostic accuracy of FNA is reported. Therefore, when considering clinical management of these patients, the utility of FNA is unclear.
View Article and Find Full Text PDFDespite the advent of advanced therapy medicinal products (ATMPs) in regenerative medicine, gene therapy, cell therapies, tissue engineering, and immunotherapy, the availability of treatment is limited to patients close to state-of-the-art facilities. The SCORPIO-V Division of HNu Photonics has developed the Phoenix-Live Cell Transport, a battery-operated mobile incubator designed to facilitate long-distance transportation of living cell cultures from GMP facilities to remote areas for increased patient accessibility to ATMPs. This work demonstrates that Phoenix (patent pending) is a superior mechanism for transporting living cells compared to the standard method of shipping frozen cells on dry ice (-80°C) or in liquid nitrogen (-150°C), which are destructive to the biology as well as a time consuming process.
View Article and Find Full Text PDFBeilstein J Nanotechnol
August 2018
This paper details the application of phosphorus monolayer doping of silicon on insulator substrates. There have been no previous publications dedicated to the topic of MLD on SOI, which allows for the impact of reduced substrate dimensions to be probed. The doping was done through functionalization of the substrates with chemically bound allyldiphenylphosphine dopant molecules.
View Article and Find Full Text PDFBackground: Xerostomia is a debilitating side effect of radiotherapy for head and neck cancer. Combining surgical submandibular-gland transfer (SMGT) with intensity-modulated radiotherapy (IMRT) may provide greater protection of salivary function.
Methods: This was a single-institution, prospective phase II feasibility trial.
We have demonstrated a proof of concept with affinity-based purification of sperm cells from mock forensic samples using SOMAmer™ reagents, DNA-based affinity reagents developed by SomaLogic, Inc. SOMAmer reagents were selected in vitro using whole-cell SELEX to bind specifically with intact, detergent-treated sperm cells. Successful separation of sperm from epithelial cells and their debris was demonstrated using buccal swabs with added semen.
View Article and Find Full Text PDFThe head and neck cancer (HNC) rate is rising among the middle-aged adult population. This trend has been attributed primarily to human papillomavirus exposure. An HNC diagnosis and its complex treatments may trigger life-changing physical, emotional, and social consequences.
View Article and Find Full Text PDFChoosing Wisely Canada, is a campaign designed to raise awareness regarding inappropriate or unnecessary tests and treatments. The Canadian Society of Otolaryngology - Head & Neck Surgery and the Canadian Association of Head and Neck Surgical Oncologists developed a Choosing Wisely Canada list to help promote high quality care for patients presenting with disorders of the head and neck: (1) Don't order imaging - computer tomography (CT) or magnetic resonance imaging (MRI) - as the initial investigation for patients presenting with a chief complaint of hoarseness, (2) Don't perform an open biopsy or excision of a neck mass without having first considered a fine needle aspiration (FNA) biopsy and, (3) Don't order neck ultrasound to investigate odynophagia (discomfort or pain with swallowing) or globus sensation.
View Article and Find Full Text PDFACS Appl Mater Interfaces
February 2017
Metal meshes have emerged as an important class of flexible transparent electrodes. We report on the characteristics of a new class of asymmetric meshes, tiled using a recently discovered family of pentagons. Micron-scale meshes were fabricated on flexible polyethylene terephthalate substrates via optical lithography, metal evaporation (Ti 10 nm, Pt 50 nm), and lift-off.
View Article and Find Full Text PDFBackground: Substance use disorders are highly prevalent in community correctional populations, yet these settings frequently are ill-equipped to identify and refer offenders to community-based treatment services. In particular, community corrections staff are often opposed to the use of medication in addiction treatment because of inadequate knowledge, resources, and organizational structures to facilitate client linkages to evidence-based services.
Methods/design: Each of the NIDA-funded Research Centers recruited 2 criminal justice agencies to participate in the study.
Background: The great auricular nerve (GAN) originates from the cervical plexus at the levels of C2 and C3, supplying sensation to the skin overlying the lower aspect of the pinna and angle of the mandible. The GAN can be injured during many procedures in the head and neck, resulting in a significant negative impact on the patient's quality of life. There are no reliable anatomic studies of GAN in the area where it is most likely to get injured.
View Article and Find Full Text PDFThis study explores the correlates of probationers' participation in 12-step programs, voluntary treatment, and mandated treatment, with respect to the geographic location of where the services are being provided as the primary covariate of interest. Data were derived from face-to-face interviews with rural and urban probationers (N = 1,464). Results of the three logistic regression models suggested that even when all the covariates are taken into account, urban probationers were significantly more likely to have been involved in 12-step programs, voluntary treatment, and mandated treatment over their lifespan.
View Article and Find Full Text PDFA reconstructed hyperspectral datacube has been successfully recovered from a badly flawed point-spread function (PSF) observation. The corrected PSF alleviated unnoticed detector saturation and misregistration artifacts in the calibration of a crucial, irreplaceable near-infrared flash hyperspectral imager dataset. This flawed PSF induced a defocus-like artifact as well as spectral distortions in the three-dimensional hyperspectral estimate of the data.
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