Papers:
Electrohydrodynamic Micro-droplet Generation on Both Conducting and Non-conducting Surfaces by Electric Induction
Lee B-S, Lee J-G, Lee B-S, Lee J-G, Cho H.-J., Huh N., Ko C., Samsung Advanced Institute of Technology, KR
There is a rapid growing need of the drop-based delivery of small quantities of bio-functional materials, such as cells. We report a brand-new printing method to generate a single droplet in the range of pL [...]
Curvilinear Waveforms for Fluid Dispensing
Piezoelectric micropipettes, a type of drop -on-demand ink jet microdispenser, are typically driven by repetitively pulsed waveforms to cause fluid ejection through a small orifice. To study the effect of drive waveform shape on drop [...]
Methods & Results from the Cambridge Inkjet Research Centre
We outline the methods and tools of fluid characterization, drop visualization and drop formation physics that are used at Cambridge. We present recent results and interpretation for drop on demand inkjet printing of some model [...]
Inkjet ink containing inorganic doped semiconductor (ZnS:Mn) nanoparticle pigments
A jettable inkjet ink containing dispersed inorganic semiconductor (ZnS:Mn) pigments has been prepared using colloidal synthesis. This ink was deposited using an inkjet printer to form printed lines of luminescent material. Different binder polymers were [...]
Engineered Nanostructures for High Thermal Conductivity Substrates
Varanasi K.K., Chamarthy P., Chauhan S., de Bock P., Kulkarni A., Mandrusiak G., Rush B., Russ B., Denault L., Weaver S., Gerner F., Leland Q., Yerkes K., Massachusetts Institute of Technology, US
In the DARPA Thermal Ground Plane (TGP) program, GE and its partners, the University of Cincinnati and the Air Force Research Laboratory, are developing a new thermal technology that will enable a monumental thermal technological [...]
Concentration Tuned Interactions and Structures in One Gradient AC Electric Field
External field-controlled particle structure growth is an active area in micron- or nano- material assembly. We will present preliminary experimental results about how to use particle concentration to tune interactions and structures in one gradient [...]
Two-Phase Convective Heat Transfer in Microchannels
Experiments were conducted to investigate subcooling flow boiling in 75 parallel microchannels (L=30 mm) having 200 μm (W) x 100 μm (H) cross-section with/without structured reentrant angle ( 0°、60°、90°and 120°). Boiling inceptions, flow morphologies, critical [...]
Design Simulations of a Micropump with Multiple Actuating Mechanisms
This paper presented the design simulations of a valveless micropump with novel multiple vibrating membranes as actuators and investigated its performance characteristics. The designed PDMS micropump consists of three nozzle/diffuser elements with vibrating membranes that [...]
Analysis of an Electrostatically Actuated MEMS Drop Ejector
MEMS are finding increasing use for applications that require the controlled generation and delivery of picoliter-sized droplets. Common applications include biomedical and biochemical microdispensing and most notably, ink jet printing. Micro-droplets can be produced as [...]
A Solid Electrolyte Valve for Micro/Nano-fluidics
This paper describes recent work on a valve to regulate liquid flow in micro/nano-fluidic channels using electrodeposited nanostructures on a solid-state AgGeSe electrolyte. The valve utilizes the extremely rough surface morphology of the electrodeposits to [...]
A Hydrophobicity Controlled Nanofluidic Pump
interfacial energies in the system. Many methods for modulation of surface tension to manipulate fluids in micro or nano scale have been studied and reported, including the mechanical (surface roughness effect), chemical (electrochemical effect), opto- [...]
Particle Transport in Magnetophoretic Microsystems
Magnetophoretic microsystems are finding increasing use in biotechnology and biomedicine for applications such as bioseparation and immuno-assays. These microfluidic systems typically contain embedded elements that produce a magnetic field distribution within a microchannel. This applied [...]
Effects of Memories of Polarization Interactions during Particle Transport Induced by One Gradient AC Electric Field
Shen Y., Tada S., Qiu Z., The City College of the City University of New York and New York Center for Biomedical Engineering, US
On the Nanotech 2008 in Boston, we reported our experimental observations of the particle instability and island-like structures in the suspension of poly alpha olefin particles and corn oil when the suspension was exposed to [...]
Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling
Published: May 3, 2009
Industry sectors: Advanced Materials & Manufacturing | Sensors, MEMS, Electronics
Topic: Micro & Bio Fluidics, Lab-on-Chip
ISBN: 978-1-4398-1784-1