Journal ArticleDOI
Multiplexed pressure sensing with elastomer membranes
Reads0
Chats0
TLDR
It is shown that pneumatic lens arrays can be used to perform sensitive multiplexed pressure measurements in microfluidic channels.Abstract:
We demonstrate a novel optical pressure measurement platform for microfluidics. The pressure sensors operate as pneumatically-tunable microlenses whose focal lengths vary with pressure. We show that pneumatic lens arrays can be used to perform sensitive multiplexed pressure measurements in microfluidic channels.read more
Citations
More filters
Journal ArticleDOI
Micro total analysis systems: fundamental advances and applications in the laboratory, clinic, and field.
Michelle L. Kovarik,Douglas M. Ornoff,Adam T. Melvin,Nicholas C. Dobes,Yuli Wang,Alexandra J. Dickinson,Philip C. Gach,Pavak K. Shah,Nancy L. Allbritton +8 more
TL;DR: This review focuses on advances in the area of μTAS or “lab-on-a-chip” systems over the time span of May 2011 through September 2012 with a focus on applications in basic research, clinical medicine and field usage.
Journal ArticleDOI
Highly Stable Liquid Metal-Based Pressure Sensor Integrated with a Microfluidic Channel
Taekeon Jung,Sung Yang +1 more
TL;DR: The proposed galinstan-based pressure sensor can be used in various microfluidic systems for long-term monitoring with high linearity, repeatability, and long- term stability.
Journal ArticleDOI
Ultra-sensitive microfluidic wearable strain sensor for intraocular pressure monitoring.
TL;DR: A passive integrated microfluidic sensor with a novel transduction mechanism that converts small strain changes into a large fluidic volume expansion, detectable by a smart-phone camera is reported.
Journal ArticleDOI
Adding colors to polydimethylsiloxane by embedding vertical silicon nanowires
TL;DR: In this paper, the authors demonstrate that embedding silicon nanowires into polydimethylsiloxane (PDMS) presents a means for adding color, i.e., providing filtering at visible and near-infrared wavelengths.
Journal ArticleDOI
Non-invasive measurement of the pressure distribution in a deformable micro-channel
TL;DR: In this paper, an analytical method for extracting the pressure distribution in a deformable micro-channel under flow is presented, based on a measurement of the channel deflection profile as a function of applied hydrostatic pressure; this initial measurement generates constitutive curves for the deformable channel.
References
More filters
Book
Theory of plates and shells
TL;DR: In this article, the authors describe the bending of long RECTANGULAR PLATES to a cycloidal surface, and the resulting deformation of shels without bending the plates.
Journal ArticleDOI
Monolithic microfabricated valves and pumps by multilayer soft lithography
TL;DR: An extension to the soft lithography paradigm, multilayersoft lithography, with which devices consisting of multiple layers may be fabricated from soft materials is described, to build active microfluidic systems containing on-off valves, switching valves, and pumps entirely out of elastomer.
Journal ArticleDOI
Microfluidics: Fluid physics at the nanoliter scale
Todd M. Squires,Stephen R. Quake +1 more
TL;DR: A review of the physics of small volumes (nanoliters) of fluids is presented, as parametrized by a series of dimensionless numbers expressing the relative importance of various physical phenomena as mentioned in this paper.
Journal ArticleDOI
Functional hydrogel structures for autonomous flow control inside microfluidic channels
David J. Beebe,Jeffrey S. Moore,Joseph M. Bauer,Qing Yu,Robin H. Liu,Chelladurai Devadoss,Byung Ho Jo +6 more
TL;DR: The fabrication of active hydrogel components inside microchannels via direct photopatterning of a liquid phase greatly simplifies system construction and assembly as the functional components are fabricated in situ, and the stimuli-responsive hydrogels components perform both sensing and actuation functions.
Journal ArticleDOI
From Micro- to Nanofabrication with Soft Materials
Stephen R. Quake,Axel Scherer +1 more
TL;DR: Active microfluidic devices for cell sorting and biochemical assays, replication-molded optics with subdiffraction limit features, and nanometer-scale resonators and wires formed from single-molecule DNA templates are discussed as examples of how the special properties of soft materials address outstanding problems in device fabrication.
Related Papers (5)
Microfluidic pressure sensing using trapped air compression.
Nimisha Srivastava,Mark A. Burns +1 more