pressure controller (Elveflow Inc)

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Elveflow Inc pressure controller

Strain measurement and the strain relaxation time of the spheroids. A1. Schematic of a tumor spheroid before (yellow, dashed lines) and during (red, solid lines) compression. The piston moves down vertically compressing a tumor spheroid underneath, resulting in the change in cross-sectional radius of the tumor spheroid. A2. A micrograph of an uncompressed MCF-10A tumor spheroid imaged at vertical midplane. The yellow outline indicates the area of the uncompressed spheroid A o , and the redline indicates the area of the compressed spheroid, A c . The scale bar is 100 μm. B. Spheroid strain response to sinusoidal, square, and triangular pressure wave compression with a period of 20 seconds from the microrheometer. The blue dots show the strain of the tumor spheroid obtained from bright field images with respect to time and the red dots represent the pressure applied to the pressure <t>controller.</t> The sampling rate is 15.67 Hz. C. Strain response of MDA-MB-231 and MCF-10A tumor spheroids when subjected to square wave compression. The maximum pressure here is 10 kPa. D. Half-relaxation time of the MDA-MB-231 and MCF-10A spheroids. Half relaxation time was defined as the time it takes for the strain to decrease to 50% of its original value after the pressure is released.

Pressure Controller, supplied by Elveflow Inc, used in various techniques. Bioz Stars score: 96/100, based on 181 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/microfluidic+pressure+controller+elveflow+ob1/Elveflow+OB1+Mk4+Microfluidic+Flow+Controller/pmc12516695-141-16-18
Average 96 stars, based on 181 article reviews

pressure controller - by Bioz Stars, 2026-09

96/100 stars

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1) Product Images from "A microfluidic rheometer for tumor mechanics and invasion studies"

Article Title: A microfluidic rheometer for tumor mechanics and invasion studies

Journal: Lab on a Chip

doi: 10.1039/d5lc00504c

Figure Legend Snippet: Strain measurement and the strain relaxation time of the spheroids. A1. Schematic of a tumor spheroid before (yellow, dashed lines) and during (red, solid lines) compression. The piston moves down vertically compressing a tumor spheroid underneath, resulting in the change in cross-sectional radius of the tumor spheroid. A2. A micrograph of an uncompressed MCF-10A tumor spheroid imaged at vertical midplane. The yellow outline indicates the area of the uncompressed spheroid A o , and the redline indicates the area of the compressed spheroid, A c . The scale bar is 100 μm. B. Spheroid strain response to sinusoidal, square, and triangular pressure wave compression with a period of 20 seconds from the microrheometer. The blue dots show the strain of the tumor spheroid obtained from bright field images with respect to time and the red dots represent the pressure applied to the pressure controller. The sampling rate is 15.67 Hz. C. Strain response of MDA-MB-231 and MCF-10A tumor spheroids when subjected to square wave compression. The maximum pressure here is 10 kPa. D. Half-relaxation time of the MDA-MB-231 and MCF-10A spheroids. Half relaxation time was defined as the time it takes for the strain to decrease to 50% of its original value after the pressure is released.

Techniques Used: Sampling

Filtration:

Article Title: Centrifuge-free separation of plasma from milliliters of whole blood for point-of-care diagnostics.
Article Snippet: .. Transmembrane pressure across the filtration membrane was measured using an Elveflow microfluidic inline pressure sensor (MFP) connected to an Elveflow OB1 flow controller. ..

Membrane:

other:

Article Title: Vacuum-Laser Fabrication of Programmable Soft Actuators.
Article Snippet: Using the same Microfluidic Flow Controller (OB1 MK4, Elveflow), we generate a lower oscillation frequency of 1.2 Hz at a pressure of 50 kPa.

Article Title: Vacuum-Laser Fabrication of Programmable Soft Actuators.
Article Snippet: A Microfluidic Flow Controller (OB1 MK4, Elveflow) is used to generate an oscillation frequency of 1.8 Hz at a pressure of 50 kPa.

Article Title: Switchable Electrode-Enabled High-Density Two-Dimensional Chips: A Simple, Generalizable Approach to Yield High-Throughput Electrochemical Analyses.
Article Snippet: We employed a pressure controller (OB1MK4, Elveflow), a 12-channel microfluidic valve (MUX Distribution 12, Elveflow), and a mass flow meter (mini CORI-FLOW, Bronkhorst) for injecting water at room temperature in the PDMS channels (45 μm × 140 μm) through pressure ramps.

Liposomes:

Article Title: Design and mechanistic evaluation of charge-converting fusogenic liposomes for efficient nucleic acid delivery
Article Snippet: Efficient cytosolic delivery of nucleic acids is critically limited by poor endosomal escape.. While the cationic surface of nanocarriers can enhance endosomal destabilization, these systems suffer from rapid clearance and protein corona formation, a long-standing challenge known as the polycation dilemma.. Charge-converting nanocarriers can mitigate this issue by masking positive charges during circulation; however, they remain constrained by inefficient endosomal escape.

Control:

Article Title: Nanophotonic neural probes for in vivo photostimulation, electrophysiology, and microfluidic delivery.
Article Snippet: .. A pressure-driven flow controller (OB1 MK3+, Elveflow, Elvesys, France) with a pressure channel permitting working pressures up to 8 bar was used to precisely drive and control the microfluidic injections. ..

Article Title: Nanophotonic neural probes for in vivo photostimulation, electrophysiology, and microfluidic delivery
Article Snippet: .. A pressure-driven flow controller (OB1 MK3+, Elveflow, Elvesys, France) with a pressure channel permitting working pressures up to 8 bar was used to precisely drive and control the microfluidic injections. ..

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