Biophysics

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    Protocols in Current Issue
    OrganoPlate Micro-fluidic Microvessel Culture and Analysis
    Authors:  Abidemi Junaid and Thomas Hankemeier, date: 07/05/2021, view: 1198, 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: 3415, 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: 2352, 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: 2232, 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: 1948, 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: 1755, Q&A: 0
    [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: 1298, 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 ...
    Evaluating Whole Blood Clotting in vitro on Biomaterial Surfaces
    Authors:  Roberta M Sabino and Ketul C Popat, date: 02/05/2020, view: 2992, Q&A: 0
    [Abstract] Biomaterial-associated thrombosis is still a major concern for blood-contacting implants. After the medical device is implanted and comes in contact with blood, several complex reactions occur, which may lead to thrombus formation and failure of the device. Therefore, it is essential to evaluate the biomaterial interaction with the whole blood. ...
    Opto-magnetic Selection and Isolation of Single Cells
    Authors:  Loïc Binan, Joannie Roy and Santiago Costantino, date: 11/20/2019, view: 2143, Q&A: 0
    [Abstract] Capturing single cells from large heterogenous populations based solely on observable traits is necessary for many cell biology applications and remains a major technical challenge. The protocol we present allows the isolation of viable and metabolically active cells selected for their shape, migration speed, contact to other cells, or ...



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