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Pinças magnéticas de alta velocidade para medições nanomecânicas em elementos sensíveis à força
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1Department of Physics,Pohang University of Science and Technology (POSTECH), 2School of Biological Sciences,Seoul National University, 3Institute for Molecular Biology and Genetics,Seoul National University, 4School of Interdisciplinary Bioscience and Bioengineering,Pohang University of Science and Technology (POSTECH)
Chapters
- 00:04Introduction
- 00:59Apparatus Construction
- 02:36Flow Cell Fabrication
- 03:50Assembly of Bead‐Tether Constructs
- 04:20Identification of Target Constructs
- 05:00Calibration of Magnetic Force
- 05:50Bead Tracking for Extension Measurement
- 06:28Results: Effect of Magnetic Force on DNA Constructs
- 08:11Conclusion
Aqui, descrevemos uma configuração de pinça magnética de alta velocidade que realiza medições nanomecânicas em biomoléculas sensíveis à força na taxa máxima de 1,2 kHz. Apresentamos sua aplicação a pinos de DNA e complexos SNARE como sistemas modelo, mas também será aplicável a outras moléculas envolvidas em eventos mecanobiológicos.
Tags
Magnetic TweezersNanomechanical MeasurementsForce-sensitive ElementsBiomoleculesStructural ChangesNucleic AcidsProteinsMechanosensitive ProteinsCardiovascular DisordersMusculoskeletal DisordersHigh-speed CMOS CameraMotorized Linear StageRotary Stepper MotorSuper Luminescent DiodePiezo Lens ScannerCoverslip PreparationPegylation
