This paper looks at the design, fabrication and characterization of stackable microfluidic emulsion generators, with coefficients variation as low ~6% production rates high ~1 L h(-1). work reports highest throughput reported in literature for a device simultaneous operation liquid-liquid droplet generators. The was achieved by stacking several layers 128 flow-focusing organized circular array. These are interconnected via through-holes fed designated fractal distribution networks. proposed...

This work presents the development of a coplanar waveguide based split ring resonator, integrated with microfluidic channel suitable for liquid sensing applications. The sensor was fabricated via photolithography on 0.5 mm borosilicate glass substrate patterned gold. aligned area and bonded to ensure consistent volume (0.784 μL) over region. microwave 1.5 × 3 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> had resonant frequency...

Stretchable electronic systems can play instrumental role for reconfigurable macro-electronics such as distributed sensor networks wearable and bio-integrated electronics. Typically, polymer composite based materials its deterministic design interconnects are used to achieve systems. Nonetheless, non-polymeric inorganic silicon is the predominant material 90% of Therefore, we report fabrication an all network hexagonal islands connected through spiral springs form ultra-stretchable...

Summary This paper presents a resonance‐based wireless power transfer system using single layer of inductor coil windings, in pancake configuration, order to obtain compact for implantable electronic applications. We theoretically analyzed the and characterized it by measuring its inductance, self‐resonant frequency, quality factor Q . In our prototype, we proposed 3‐coil system, two 15‐mm radius coils, with resonance frequency 6.76 MHz. can effectively distance up 50 mm. Moreover, achieve...

Unravelling the timing and rate of subduction-zone metamorphism H2O release requires linking time to compositional changes petrogenetic indicator minerals in blueschists eclogites. Garnet is a key mineral this regard, as it forms by, records, H2O-releasing reactions that can be linked pressure temperature conditions. These placed using chronology. Bulk-or multi-grain ages are norm garnet While these provide important precise constraints on across both facies, duration, rates style...

Devices capable of automatically aligning cells onto geometrical arrays are great interest to biomedical researchers. Such devices can facilitate the study numerous while remain physically separated from one another. In this way, cell reduce cell-to-cell interactions all subjected common stimuli, which allows individual behaviour be revealed. The use for parallel analysis single cells, facilitates data logging, and opens door automated machine-based techniques. A novel permalloy based...

A new movable plate concept is presented in this paper to realize mm-wave vertical on-chip antennas through MEMS based post-processing steps a CMOS compatible process. By virtue of its position, the antenna isolated from lossy Si substrate and hence performs with better efficiency as compared horizontal position. In addition, enables polarization diversity by providing both polarizations on same chip. Through first iteration fractal bowtie design, dual band (60 77 GHz) operation demonstrated...

The paper demonstrates an adaptation of a 3D printer (Prusa Mini+) with novel modules to develop droplet generation system that generates combinatorial droplets from standard 96 well plate. calibration methodology developed would allow any fused deposition modeling (FDM) generate monodisperse (coefficient variance (CV%) < 5%) plates or vials geometry. maintains precision across various volumes while maintaining C.V. range 0.81% 3.61%, increased for larger volumes. cost the is 70% less than...

This work presents the first-reported freely moving parts, including out-of-plane hinges and rotating fabricated in SU-8 that require no post-development bonding step. The technology used is a PolyMUMPs®-like process developed by authors, called planar self-sacrificial multilayer (PSALMS) process. PSALMS allows independent patterning of layers, so acts as both structural sacrificial material. Each layer bilayer consisting standard below modified to heavily absorb UV addition SC1827 resist....

This paper reports a versatile multi-user micro-fabrication process for MEMS devices, the "Polyimide Multi-User Process" (PiMMPs). The reported uses polyimide as structural material and three separate metallization layers that can be interconnected depending on desired application. enables first time development of out-of-plane compliant mechanisms designed using six different physical principles actuation sensing wafer from single fabrication run. These are electrostatic motion, thermal...

Implantable drug delivery devices are becoming attractive due to their abilities of targeted and controlled dose release. Currently, two important issues functional lifetime non-controlled diffusion. In this work, we present a device combining an electrolytic pump thermo-responsive valve, which both remotely by electromagnetic field (40.5 mT 450 kHz). Our proposed exhibits novel operation mechanism for long-term therapeutic treatments using solid in reservoir approach. also prevents...

Although PMMA can be exposed using a variety of exposure sources, deep-UV at 254 nm is interest because it relatively inexpensive. Additionally, sources readily scaled to large area exposures. Moreover, this paper will show that depths over 100µm created in commercial grade an uncollimated source. These are sufficient for creating microfluidic channels. This provide measurements the dissolution depth as function dose and etch time, IPA:H2O developer. experiments were run characterize...

This work, focusing on an implantable drug delivery system, presents the first prototype electrolytic pump that combines a catalytic reformer and cyclically actuated mode.

This paper reports the design of a proof-of-concept drug delivery device that is actuated using bubbles formed during electrolysis. The uses platinum (Pt) coated nickel (Ni) metal foam and solid in reservoir (SDR) approach to improve device's performance. electrochemically-driven pump has many features are unlike conventional devices: it capable pumping periodically being refilled automatically; release control; enables targeted delivery. Pt-coated used as catalytic reforming element, which...

The effect of processing conditions on the curvature SU-8 cantilevers up to 6400 µm long is determined by experimental methods. Our observations suggest that a zero condition can be achieved controlling exposure dose and post-exposure baking time for any given thickness. processed with different doses times has been measured reveals gradient crosslinking density throughout film cause out-of-plane stress. A general model cantilever developed which explains behavior structures have used...

Poly(methyl methacrylate) (PMMA) is a transparent thermoplastic with important applications as positive resist for various radiation sources. When used photoresist, PMMA typically wavelengths shorter than 240 nm, that the commonly accepted upper limit of effectiveness. However, authors have shown patterning nonamplified films at 254 which significant because nm can be produced using inexpensive low-pressure mercury vapor lamps. Data etch depth function exposure dose (0–12 h), developer...

This work presents the fabrication and characterization of a three-axis induction sensor consisting one planar microcoil, fixed on substrate, two microcoils fabricated Bbuckled cantilever plates (BCP) oriented perpendicularly to substrate each other. The BCP allows an out-of-plane translation while preserving direct connection which aids routing electrical lines. is integrated single allowing interaction integration with other systems. devices are using MEMS polymer process. Different...