Interaction of transient fast flows with biological cells in microfluidic confinement

This thesis deals with the interaction of biological cells with transient fast flows mainly from bubbles in microfluidic confinement. These interactions can be utilized to stretch and porate cell membranes toward a label-free biomarker for human diseases, and drug or gene delivery, respectively. Th...

Full description

Saved in:
Bibliographic Details
Main Author: Li, Fenfang
Other Authors: Claus-Dieter Ohl
Format: Theses and Dissertations
Language:English
Published: 2015
Subjects:
Online Access:https://hdl.handle.net/10356/62221
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-62221
record_format dspace
spelling sg-ntu-dr.10356-622212023-02-28T23:38:27Z Interaction of transient fast flows with biological cells in microfluidic confinement Li, Fenfang Claus-Dieter Ohl School of Physical and Mathematical Sciences DRNTU::Science::Biological sciences::Biochemistry This thesis deals with the interaction of biological cells with transient fast flows mainly from bubbles in microfluidic confinement. These interactions can be utilized to stretch and porate cell membranes toward a label-free biomarker for human diseases, and drug or gene delivery, respectively. The rapid expansion and collapse of a single laser-induced cavitation bubble generate a strong shear flow, which is mainly located within the boundary layer close to the bubble. This leads to impulsive stretching of red blood cells with large strains while larger spherical cancer cells have to be stretched by an extension flow with inertial focusing. The deformability of cancer cells is found to correlate with their invasive potential. Besides, the fast jetting flow from shock wave/cavitation bubble-gas bubble interaction is exploited for localized cell membrane poration. We also study this kind of fast jetting flow in detail with different geometrical arrangements of the gas bubbles and some novel phenomena are observed. DOCTOR OF PHILOSOPHY (SPMS) 2015-03-09T06:46:40Z 2015-03-09T06:46:40Z 2014 2014 Thesis Li, F. (2014). Interaction of transient fast flows with biological cells in microfluidic confinement. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/62221 10.32657/10356/62221 en 168 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Biological sciences::Biochemistry
spellingShingle DRNTU::Science::Biological sciences::Biochemistry
Li, Fenfang
Interaction of transient fast flows with biological cells in microfluidic confinement
description This thesis deals with the interaction of biological cells with transient fast flows mainly from bubbles in microfluidic confinement. These interactions can be utilized to stretch and porate cell membranes toward a label-free biomarker for human diseases, and drug or gene delivery, respectively. The rapid expansion and collapse of a single laser-induced cavitation bubble generate a strong shear flow, which is mainly located within the boundary layer close to the bubble. This leads to impulsive stretching of red blood cells with large strains while larger spherical cancer cells have to be stretched by an extension flow with inertial focusing. The deformability of cancer cells is found to correlate with their invasive potential. Besides, the fast jetting flow from shock wave/cavitation bubble-gas bubble interaction is exploited for localized cell membrane poration. We also study this kind of fast jetting flow in detail with different geometrical arrangements of the gas bubbles and some novel phenomena are observed.
author2 Claus-Dieter Ohl
author_facet Claus-Dieter Ohl
Li, Fenfang
format Theses and Dissertations
author Li, Fenfang
author_sort Li, Fenfang
title Interaction of transient fast flows with biological cells in microfluidic confinement
title_short Interaction of transient fast flows with biological cells in microfluidic confinement
title_full Interaction of transient fast flows with biological cells in microfluidic confinement
title_fullStr Interaction of transient fast flows with biological cells in microfluidic confinement
title_full_unstemmed Interaction of transient fast flows with biological cells in microfluidic confinement
title_sort interaction of transient fast flows with biological cells in microfluidic confinement
publishDate 2015
url https://hdl.handle.net/10356/62221
_version_ 1759854392877514752