Biophysics

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    Protocols in Current Issue
    A Novel Imaging Technique for The On-site Assessment of Renal Biopsy Specimens
    Authors:  Tomoaki Takata, Hajime Isomoto, Takuji Iyama and Kentaro Yamada, date: 09/20/2022, view: 299, Q&A: 0
    [Abstract]

    When performing renal biopsy, it is necessary to identify the cortex, where glomeruli are exclusively distributed, to ensure the quality of the specimen for histological diagnosis. However, conventional methods using a stereomicroscope or magnifying lens often fail to clarify the quality of the specimen. We have established a fluorescent-based

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    Patterned Substrate of Mobile and Immobile Ligands to Probe EphA2 Receptor Clustering
    Authors:  Zhongwen Chen, Kabir H. Biswas and Jay T. Groves, date: 06/05/2022, view: 1292, Q&A: 0
    [Abstract]

    A multitude of membrane-localized receptors are utilized by cells to integrate both biochemical and physical signals from their microenvironment. The clustering of membrane receptors is widely presumed to have functional consequences for subsequent signal transduction. However, it is experimentally challenging to selectively manipulate receptor

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    OrganoPlate Micro-fluidic Microvessel Culture and Analysis
    Authors:  Abidemi Junaid and Thomas Hankemeier, date: 07/05/2021, view: 2769, Q&A: 0
    [Abstract]

    The endothelial cells from the microvasculature are key drivers and targets of inflammatory and thrombotic processes in microvascular diseases. The study of bioactive lipids in inflammatory processes has been largely based on two-dimensional endothelial cell cultures. Three-dimensional microvessels-on-a-chip provides an opportunity to monitor the

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    Surface Engineering and Multimodal Imaging of Multistage Delivery Vectors in Metastatic Breast Cancer
    Authors:  Shreya Goel, Mauro Ferrari and Haifa Shen, date: 05/20/2021, view: 4431, Q&A: 0
    [Abstract]

    The design of effective nanoformulations that target metastatic breast cancers is challenging due to a lack of competent imaging and image analysis protocols that can capture the interactions between the injected nanoparticles and metastatic lesions. Here, we describe the integration of in vivo whole-body PET-CT with high temporal resolution, ex

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    Developing Biohybrid Robotic Jellyfish (Aurelia aurita) for Free-swimming Tests in the Laboratory and in the Field
    [Abstract]

    Biohybrid robotics is a growing field that incorporates both live tissues and engineered materials to build robots that address current limitations in robots, including high power consumption and low damage tolerance. One approach is to use microelectronics to enhance whole organisms, which has previously been achieved to control the locomotion of

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    Live Cell FRET Analysis of the Conformational Changes of Human P-glycoprotein
    Authors:  Ryota Futamata, Noriyuki Kioka and Kazumitsu Ueda, date: 02/20/2021, view: 3794, Q&A: 0
    [Abstract]

    The molecular mechanisms of P-glycoprotein (P-gp; also known as MDR1 or ABCB1) have been mainly investigated using artificial membranes such as lipid-detergent mixed micelles, artificial lipid bilayers, and membrane vesicles derived from cultured cells. Although these in vitro experiments help illustrate details about the molecular mechanisms of

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    Efficient Transient Gene Knock-down in Tobacco Plants Using Carbon Nanocarriers
    Authors:  Gozde S. Demirer and Markita P. Landry, date: 01/05/2021, view: 4031, Q&A: 0
    [Abstract] Gene knock-down in plants is a useful approach to study genotype-phenotype relationships, render disease resistance to crops, and enable efficient biosynthesis of molecules in plants. Small interfering RNA (siRNA)-mediated gene silencing is one of the most common ways to achieve gene knock-down in plants. Traditionally, siRNA is delivered into ...
    Mechanical Characterization of Glandular Acini Using a Micro-indentation Instrument
    Authors:  Christopher S. O’Bryan, Qiao Zhang, Tanmay P. Lele and Thomas E. Angelini, date: 12/05/2020, view: 2851, Q&A: 0
    [Abstract]

    The linker of nucleoskeleton and cytoskeleton (LINC) complex is responsible for tethering the nucleus to the cytoskeleton, providing a pathway for the cell’s nucleus to sense mechanical signals from the environment. Recently, we explored the role of the LINC complex in the development of glandular epithelial acini, such as those found in

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    Production and Isolation of Magnetic Protein Crystals in HEK293T Cells
    Authors:  Thomas L. Li and Bianxiao Cui, date: 07/20/2020, view: 2928, Q&A: 3
    [Abstract] Advances in protein engineering have enabled the production of self-assembled protein crystals within living cells. Our recent publication demonstrates the production of ftn-PAK4, which is a ferritin-containing crystal that can mineralize iron and become magnetic when isolated. We have developed an optimized protocol for the production and ...
    Preparation and Characterization of Ginger Lipid-derived Nanoparticles for Colon-targeted siRNA Delivery
    Authors:  Junsik Sung, Chunhua Yang, James F. Collins and Didier Merlin, date: 07/20/2020, view: 2486, Q&A: 0
    [Abstract] Synthetic nanoparticle-based drug delivery system is widely known for its ability to increase the efficacy and specificity of loaded drugs, but it often suffers from relatively higher immunotoxicity and higher costs as compared to traditional drug formulations. Contrarily, plant-derived nanoparticles appear to be free from these limitations of ...



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