College of Engineering

Search CurateND

Search criteria:

Department or Unit: College of Engineering remove × Type of Work: Article remove ×
Clear all

List of files deposited in CurateND that match your search criteria

  • Author(s):
    Jeremy Fein, Clayton Johnson, Joshua Shrout
    Abstract:

    Understanding metal sorption to bacteria is important for developing bioremediation strategies, for determining the fate of contaminants in ground water systems, and for defining controls on microbial metabolic processes in the environment. X-ray absorption spectroscopy (XAS) has been the only technique available for quantifying and mapping metal sorption to bacteria on an individual cell scale, but the XAS approach is time consuming and expensive, and quantitative mapping of the distribution…

    Date Published:
    2018-04
  • 2

    Article

    Author(s):
    Jakub Plášil, Anthony R. Kampf, Peter C. Burns
    Abstract:

    Redcanyonite (IMA2016-082), (NH4)2Mn(UO2)4O4(SO4)24, occursunderground in the Blue Lizard mine, Red Canyon, White Canyon district,San Juan County, Utah, USA. It occurs with natrozippeite, brochantite, devilline, posnjakite, johannite, gypsum, bobcookite, pickingerite, pentahydrite, and the NH4-analog of zippeite, ammoniozippeite. Redcanyonite occurs as radial aggregates of red-orange needles and blades individually reaching up to 0.2 mm in length, with aggregates measuring up to 1 mm i…

    Date Published:
    2018-05
  • Author(s):
    Bradley Ellis, Aylin Acun, U. Isik Can, Pinar Zorlutuna
    Abstract:

    The heart wall tissue, or the myocardium, is one of the main targets in cardiovascular disease prevention and treatment. Animal models have not been sufficient in mimicking the human myocardium as evident by the very low clinical translation rates of cardiovascular drugs. Additionally, current in vitro models of the human myocardium possess several shortcomings such as lack of physiologically relevant co-culture of myocardial cells, lack of a 3D biomimetic environment, and the use of non-huma…

    Date Published:
    2017-03
  • Author(s):
    Genevieve D. Vigil, Lina Cao, Aamir A. Khan, David Benirschke, Tahsin Ahmed, Patrick Fay, Scott S. Howard
    Abstract:

    Fluorophore saturation is the key factor limiting the speed and excitation range of fluorescence lifetime imaging microscopy (FLIM). For example, fluorophore saturation causes incorrect lifetime measurements when using conventional frequency-domain FLIM at high excitation powers. In this Letter, we present an analytical theoretical description of this error and present a method for compensating for this error in order to extract correct lifetime measurements in the limit of fluorophore satura…

    Date Published:
    2016-12
  • Author(s):
    Shirou Lou, Jarrod Schiffbauer, Tengfei Lou
    Abstract:

    In this work, the droplet size in a water-in-oil emulsion obtained by supersaturation is studied. The emulsion is obtained by cooling down a saturated water/oil solution by a certain temperature difference. The effects of the cooling rate and temperature difference on the produced droplet size are experimentally investigated. The average size of water droplets in the emulsion is found to be proportional to the square root of the cooling rate. By analyzing the time scales of three different st…

    Date Published:
    2017-10
  • Author(s):
    Yide Zhang, Prakash Nallathamby, Genevieve D. Vigil, Aamir A. Khan, Devon E. Mason, Joel D. Boerckel, Ryan K. Roeder, Scott S. Howard
    Abstract:

    Super-resolution fluorescence microscopy is an important tool in biomedical research for its ability to discern features smaller than the diffraction limit. However, due to its difficult implementation and high cost, the super-resolution microscopy is not feasible in many applications. In this paper, we propose and demonstrate a saturation-based super-resolution fluorescence microscopy technique that can be easily implemented and requires neither additional hardware nor complex post-processin…

    Date Published:
    2018-04
  • Author(s):
    Pavel A. Brodkiy, Qinfeng Wu, Francisco J. Huizar, Dharsan K. Soundarrajan, Cody Narciso, Megan evis, Ninfamaria Arredondo-Walsh, Jianxu Chen, Peixian Liang, Danny Z. Chen, Jeremiah James Zartman
    Abstract:

    Organ development is driven by a set of patterned inductive signals. However, how these signals are integrated to coordinate tissue patterning is still poorly understood. Calcium ions (Ca2+) are critical signaling components involved in signal integration and are regulated by a core Ca2+ signaling toolkit. Ca2+ signaling encodes a significant fraction of information in cells through both amplitude and frequency-dependent regulation of transcription factors and key regulatory enzymes. A range …

    Date Published:
    2017-09
  • Author(s):
    Cody E. Narcisco, Nicholas M. Contento, Thomas J. Storey, David J. Hoelzle, Jeremiah J. Zartman
    Abstract:

    Mechanical forces are critical but poorly understood inputs for organogenesis and wound healing. Calcium ions (Ca2+) are critical second messengers in cells for integrating environmental and mechanical cues, but the regulation of Ca2+ signaling is poorly understood in developing epithelial tissues. Here we report a chip-based regulated environment for microorgans that enables systematic investigations of the crosstalk between an organ’s mechanical stress environment and biochemical signaling …

    Date Published:
    2017-07
  • Author(s):
    Qinfeng Wu, Pavel Aleksandrovich Brodkiy, Francisco Javier Huizar, Jamison John Jangula, Cody Narciso, Megan Kathleen Levis, Teresa Brito-Robinson, Jeremiah J. Zartman
    Abstract:

    Recently, organ-scale intercellular Ca2+ transients (ICTs) were reported in the Drosophila wing disc. However, the functional in vivo significance of ICTs remains largely unknown. Here we demonstrate the in vivo relevance of intercellular Ca2+ signaling and its impact on wing development. We report that Ca2+ signaling in vivo decreases as wing discs mature. Ca2+ signaling ex vivo responds to fly extract in a dose-dependent manner. This suggests ICTs occur in vivo due to chemical stimulus that…

    Date Published:
    2017-09
  • Author(s):
    M. McFadden, J. Loconsole, A. J. Schockling, R. Nerenberg, J. P. .Pavassich
    Abstract:

    Peracetic acid (PAA) is an alternative disinfectant that may be effective for combined sewer overflow (CSO) disinfection, but little is known about the effect of particle size on PAA disinfection efficiency. In this work, PAA and hypochlorite were compared as disinfectants, with a focus on the effect of wastewater particles. Inactivation experiments were conducted on suspended cultures of Escherichia coli and wastewater suspended solids. Tested size fractions included particle diameters < …

    Date Published:
    2017-12
  • Author(s):
    Devon E. Mason, James H. Dawahare, Daniel J. Horan, Genevieve D. Vigil, Scott S. Howard,, Alexander G. Robling, , Teresita M. Bellido, Joel D. Boerckel
    Abstract:

    The functions of the paralogous transcriptional coactivators Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) in bone are controversial. Each has been observed to promote or inhibit osteogenesis in vitro, with reports of both equivalent and divergent functions. Their combinatorial roles in bone physiology are unknown. We report that combinatorial YAP/TAZ deletion from skeletal lineage cells, using Osterix-Cre, caused an osteogenesis imperfecta-like phe…

    Date Published:
    2018-05
  • Author(s):
    Christopher D. Kagelman, Devon E. Mason, James H. Dawahare, Genevieve D. Vigil, Scott S. Howard, Teresita M. Bellido, Alexander G. Robling, Joel Boerckel
    Abstract:

    The functions of the transcriptional co-activators YAP and TAZ in bone are controversial. Each has been observed to either promote or inhibit osteogenesis in vitro, while their roles in bone development are unknown. Here we report that combinatorial YAP/TAZ deletion from skeletal cells in mice caused osteogenesis imperfecta with severity dependent on targeted cell lineage and allele dosage. Osteocyte-conditional deletion impaired bone accrual and matrix collagen, while allele dosage-dependent…

    Date Published:
    2017-05