A pneumatically-actuated nanofluidic platform that has the capability of dynamically controlling the confinement environment of macromolecules in solution is presented in this thesis. We use this system to quantify the interactions of multiple confined DNA chains, a key problem in polymer physics with important implications for nanofluidic device performance and DNA partitioning/organization in bacteria and the eukaryotes. To begin the thesis, the study of DNA dynamics in slit-like confinement is reviewed and then we discuss the device fabrication method, the fast switching microscope setup and the experimental protocols/results. Lastly, we present preliminary data probing the transition between different dynamical states as involving two c...
Using laser fluorescence microscopy, we study the shape and dynamics of individual DNA molecules in ...
Single polymer passage through geometrically confined regions is ubiquitous in biology. Recent techn...
Confinement of biopolymers inside volumes with micro- or nanoscale lateral dimensions is ubiquitous ...
A pneumatically-actuated membrane device is designed and fabricated to dynamically confine multiple ...
A complex nanofluidic device consisting of a slit embedded with an array of nanopit cavities is used...
We use a nanofluidic system to investigate the emergence of thermally driven collective phenomena al...
A nanofluidic assay consisting of nanochannels coupled to an optical trap is used to probe the noneq...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2008.Includes...
The successful design of nanofluidic devices for the manipulation of biopolymers requires an underst...
Single polymer passage through geometrically confined regions is ubiquitous in biology. Recent techn...
A nanofluidic slit embedded with a lattice of square pits was used to entropically trap polymers. DN...
Entropy-driven polymer dynamics at the nanoscale is fundamentally important in biological systems bu...
Single-molecule DNA experiments dealing with statics and dynamics in nanoconfined systems are typica...
How multiple interpenetrating polymer molecules behave in a confined space is a problem of interest ...
The objective of this thesis is to study the dynamic properties of DNA molecules in nanofluidic slit...
Using laser fluorescence microscopy, we study the shape and dynamics of individual DNA molecules in ...
Single polymer passage through geometrically confined regions is ubiquitous in biology. Recent techn...
Confinement of biopolymers inside volumes with micro- or nanoscale lateral dimensions is ubiquitous ...
A pneumatically-actuated membrane device is designed and fabricated to dynamically confine multiple ...
A complex nanofluidic device consisting of a slit embedded with an array of nanopit cavities is used...
We use a nanofluidic system to investigate the emergence of thermally driven collective phenomena al...
A nanofluidic assay consisting of nanochannels coupled to an optical trap is used to probe the noneq...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2008.Includes...
The successful design of nanofluidic devices for the manipulation of biopolymers requires an underst...
Single polymer passage through geometrically confined regions is ubiquitous in biology. Recent techn...
A nanofluidic slit embedded with a lattice of square pits was used to entropically trap polymers. DN...
Entropy-driven polymer dynamics at the nanoscale is fundamentally important in biological systems bu...
Single-molecule DNA experiments dealing with statics and dynamics in nanoconfined systems are typica...
How multiple interpenetrating polymer molecules behave in a confined space is a problem of interest ...
The objective of this thesis is to study the dynamic properties of DNA molecules in nanofluidic slit...
Using laser fluorescence microscopy, we study the shape and dynamics of individual DNA molecules in ...
Single polymer passage through geometrically confined regions is ubiquitous in biology. Recent techn...
Confinement of biopolymers inside volumes with micro- or nanoscale lateral dimensions is ubiquitous ...