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  • Author(s):
    Zhongmou Chao, Kutay Sezginel, Ke Xu, Garrison Crouch, Abigale Gray, Christopher Wilmer, Paul Bohn, David Go, Susan Fillerton-Shirey
    Abstract:

    Silver nanofilament formation dynamics are reported for an ionic liquid (IL)-filled solid polymer electrolyte prepared by a direct-write process using a conductive atomic force microscope (C-AFM). Filaments are electrochemically formed at hundreds of xy locations on a ≈40 nm thick polymer electrolyte, polyethylene glycol diacrylate (PEGDA)/[BMIM]PF6. Although the formation time generally decreases with increasing bias from 0.7 to 3.0 V, an unexpected non-monotonic maximum is observed ≈2.0 V. …

    Date Published:
    2019-01
    Record Visibility:
    Public
  • Author(s):
    Jason Mason, Jordan A. Cockfield, Daniel Pape, Hannah Meissner, Michael Sokolowski, Taylor C. White, Jose Valentin Lopez, Juan Liu, Xiaojing Liu, Inmaculada martinez-Reyes, Navdeep Chandel, Jason Locasale, Zachary Schafer
    Abstract:

    Loss of integrin-mediated attachment to extracellular matrix (ECM) proteins can trigger a variety of cellular changes that impact cell viability. Foremost among these is the activation of anoikis, caspase-mediated cell death induced by ECM-detachment. In addition to anoikis, loss of ECM-attachment causes profound alterations in cellular metabolism that can lead to anoikis-independent cell death. Here, we describe a surprising role for serum and glucocorticoid kinase-1 (SGK1) in the promotion …

    Date Published:
    2020-03
    Record Visibility:
    Public
  • Author(s):
    Sasha Padilla-Coley, Hui Xu
    Abstract:

    hydrophobic (i.e., Hoechst 33342) dyes or drugs, including a binary dye/drug pair (i.e., indocyanine green/mitoxantrone). The core of HBPn, containing a mixture of uncharged 2-pentanone chains and 1,2,3-triazole rings, could be loaded with uncharged and very hydrophobic dyes (i.e., Nile Red) or drugs. Improved aqueous solubility of camptothecin was achieved 10-fold from 8.4 to 75 ng/mL. Additionally, cell toxicity studies showed that HBPn was able to release the camptothecin drug inside A549 …

    Date Published:
    2020-04
    Record Visibility:
    Public
  • Author(s):
    Frederik J. Steyn, Siobhan Kirk, Tesfay W. Tefera, Teresa Xie, Timothy Tracey, Dean Kelk, Elyse Wimberger, Fleur Garton, Llion Robets, Sarah Chapman, Jeff Coombes, W. Matthew Leevy, Alberto Ferri, Cristiana Valle, Frederique Rene, Jean-Philippe Loeffler, Pamela McCombe, Robert Henderson, Shyuan Ngo
    Abstract:

    Amyotrophic lateral sclerosis (ALS) is characterized by the degeneration of upper and lower 36 motor neurons, yet an increasing number of studies in both mouse models and patients with 37 ALS suggest that altered metabolic homeostasis is a feature of disease. Pre-clinical and clinical 38 studies have shown that modulation of energy balance can be beneficial in ALS. However, our 39 capacity to target specific metabolic pathways or mechanisms requires detailed understanding 40 of metabolic dysr…

    Date Published:
    2020-04
    Record Visibility:
    Public
  • Author(s):
    Jeff Harden
    Abstract:

    Governments around the world adopt transparency reforms to facilitate accountability. In principle, open proceedings provide citizens with valuable information to evaluate elected officials’ decisionmaking, which incentives lawmakers to follow mass preferences when choosing policies. However, the public’s general lack of knowledge and engagement with the political process may weaken the power of open information, and perhaps instead allow citizens and groups with extreme views to exer…

    Record Visibility:
    Public
  • Author(s):
    S. Rouvimov, D. V. Nechaev, V. I. Kozlovsky, S. V. Ivanov
    Abstract:

    Spreading resistance microscopy (SRM) was used to study nanoscale variations in electronic and structural properties of an ultrathin near-surface GaN/AlN quantum well (QW). In the SRM images of the growth surface of the GaN/AlN QW heterostructure, an inhomogeneous current contrast was detected in the form of disk-like regions of increased conductivity with the sizes in the range of 50–160 nm and a density of 1.7 109 cm 2 . Analysis of the current contrast dependence on the polarity of the sam…

    Date Published:
    2019-02
    Record Visibility:
    Public
  • Author(s):
    Rui Zhao, Benjamin Grisafe, Ram Krishna Ghosh, Ke Wang, Suman Datta, Joshua Robinson
    Abstract:

    The 1T phase of tantalum disulfide (1T-TaS 2 ) possesses a variety of charge-density-wave (CDW) orders, and as a result, it attracts an increasing amount of academic and technological interest. The 1T phase of tantalum disulfide (1T-TaS 2 ) possesses a variety of charge-density-wave (CDW) orders, and as a result, it attracts an increasing amount of academic and technological interest. Researchers have devoted tremendous efforts towards understanding the impacts of doping, alloying, intercalat…

    Date Published:
    2019-04
    Record Visibility:
    Public
  • Author(s):
    Paul J. McGinn
    Abstract:

    High-throughput combinatorial investigations are transforming materials discovery, phase diagram development, and processing optimization. Thin-film deposition techniques are frequently used to fabricate sample libraries employed in these studies. Various adaptations of well-known thin-film chemical vapor deposition (CVD) and physical vapor deposition (PVD) techniques utilized for the synthesis of inorganic combinatorial thin-film materials libraries are reviewed, with novel processing approa…

    Date Published:
    2019-08
    Record Visibility:
    Public
  • Author(s):
    N Kryzhanovskaya, E. Moiseev, F. I. Zubov, A. M. Mozharov, M. V. Maximov, N. A. Kalyuzhnyy, S. A. Mintariov, Yu Bernikov, S. Rouvimov, A. E. Zhukov
    Abstract:

    GaAs-based microdisk lasers with an active region representing a dense array of indium-rich islands (InGaAs quantum well-dots) were studied using direct small-signal modulation. We demonstrate that using dense arrays of InGaAs quantum well-dots enables uncooled high-frequency applications with a GHz-range bandwidth for microdisk lasers. A maximum 3 dB modulation frequency of 5.9 GHz was found in the microdisk with a radius of 13.5 μm operating without a heatsink for cooling. A modulation curr…

    Date Published:
    2019-05
    Record Visibility:
    Public
  • Author(s):
    Ricardo Romer-Moreno, Kimberly Curtis, Thomas Couglin, Maria Mieranda-Vergara, Shourik Dutta, Aishwarya Natarajan, Beth Facchine, Kristen Jackson, Lukas Nystrom, Jun Li, William Kaliney, Glen Niebur, Laurie Littlepage
    Abstract:

    Bone is one of the most common sites for metastasis across cancers. Cancer cells that travel through the vasculature and invade new tissues can remain in a non-proliferative dormant state for years before colonizing the metastatic site. Switching from dormancy to colonization is the rate-limiting step of bone metastasis. Here we develop an ex vivo co-culture method to grow cancer cells in mouse bones to assess cancer cell proliferation using healthy or cancer-primed bones. Profiling soluble f…

    Date Published:
    2019-07
    Record Visibility:
    Public
  • Author(s):
    Ricardo Romer-Moreno, Kimberly Curtis, Thomas Couglin, Maria Mieranda-Vergara, Shourik Dutta, Aishwarya Natarajan, Beth Facchine, Kristen Jackson, Lukas Nystrom, Jun Li, William Kaliney, Glen Niebur, Laurie Littlepage
    Abstract:

    Bone is one of the most common sites for metastasis across cancers. Cancer cells that travel through the vasculature and invade new tissues can remain in a non-proliferative dormant state for years before colonizing the metastatic site. Switching from dormancy to colonization is the rate-limiting step of bone metastasis. Here we develop an ex vivo co-culture method to grow cancer cells in mouse bones to assess cancer cell proliferation using healthy or cancer-primed bones. Profiling soluble f…

    Date Published:
    2019-07
    Record Visibility:
    Public
  • Author(s):
    Keon R. Schmidt, Barnes Werner, Jenna Koenig, Ian Guldner, Patricia Schnepp, Xuejuan Tan, Lan Jiang, Misha Host, Longhua Sun, Erin Howe, Junmin Wu, Laurie Littlepage, Harikrishna Nakshtri, Siyua Zhang
    Abstract:

    Lacking targetable molecular drivers, triple-negative breast cancer (TNBC) is the most clinically challenging subtype of breast cancer. In this study, we reveal that Death Effector Domain-containing DNA-binding protein (DEDD), which is overexpressed in > 60% of TNBCs, drives a mitogen-independent G1/S cell cycle transition through cytoplasm localization. The gain of cytosolic DEDD enhances cyclin D1 expression by interacting with heat shock 71 kDa protein 8 (HSC70). Concurrently, DEDD inte…

    Date Published:
    2019-07
    Record Visibility:
    Public