The micropipette-aspiration technique is commonly used in the field of mechanobiology, offering a variety of measurement types. To extract biophysical parameters from the experiments, numerical analysis is required. Although previous works have developed techniques for the partial automation of these analyses, these approaches are relatively time consuming for the researchers. In this article, we describe the development and application of an artificial-intelligence tool for the completely automatic analysis of micropipette-aspiration experiments. The use of this tool is compared with previous methods and the impressive reduction in the time required for these analyses is discussed. The new tool opens new possibilities for the micropipette-aspiration technique by enabling dealing with large numbers of experiments and real-time measurements.
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http://dx.doi.org/10.1016/j.bpj.2024.04.006 | DOI Listing |
J Mater Chem B
November 2024
Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Espoo, Aalto FI-00076, Finland.
There is an increasing understanding that condensation is a crucial intermediate step in the assembly of biological materials and for a multitude of cellular processes. To apply and to understand these mechanisms, biophysical characterisation techniques are central. The formation and biophysical properties of protein condensates depend on a multitude of factors, such as protein concentration, pH, temperature, salt concentration, and presence of other biomolecules as well as protein purification and storage conditions.
View Article and Find Full Text PDFNat Commun
June 2024
School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.
The microgeometry of the cellular microenvironment profoundly impacts cellular behaviors, yet the link between it and the ubiquitously expressed mechanosensitive ion channel PIEZO1 remains unclear. Herein, we describe a fluorescent micropipette aspiration assay that allows for simultaneous visualization of intracellular calcium dynamics and cytoskeletal architecture in real-time, under varied micropipette geometries. By integrating elastic shell finite element analysis with fluorescent lifetime imaging microscopy and employing PIEZO1-specific transgenic red blood cells and HEK cell lines, we demonstrate a direct correlation between the microscale geometry of aspiration and PIEZO1-mediated calcium signaling.
View Article and Find Full Text PDFComput Biol Med
August 2024
Department of Mechanical Engineering, Sharif University of Technology, 89694-14588, Tehran, Iran; Institute for Nanoscience and Nanotechnology, Sharif University of Technology, 89694-14588, Tehran, Iran. Electronic address:
Cancer alters the structural integrity and morphology of cells. Consequently, the cell function is overshadowed. In this study, the micropipette aspiration process is computationally modeled to predict the mechanical behavior of the colorectal cancer cells.
View Article and Find Full Text PDFHeliyon
May 2024
The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen University, Shenzhen, 518035, China.
Biophys J
September 2024
Departamento de Ciencia de Materiales, ETSI de Caminos, Universidad Politécnica de Madrid, Madrid, Spain; Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, Pozuelo de Alracón, Spain; Instituto de Investigación Sanitaria Hospital Clínico San Carlos, IdISSC, Madrid, Spain. Electronic address:
The micropipette-aspiration technique is commonly used in the field of mechanobiology, offering a variety of measurement types. To extract biophysical parameters from the experiments, numerical analysis is required. Although previous works have developed techniques for the partial automation of these analyses, these approaches are relatively time consuming for the researchers.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!