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Displacement Micropump with Check Valves for Diabetes Care—The Challenge of Pumping Insulin at Negative Pressure

Encyclopedia
The displacement micropump with passive check valves is an attractive solution for precise insulin infusion in patients with type I diabetes. Unlike most insulin pumps that push insulin from a cartridge using a piston, a displacement micropump will first
Eric Chappel
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Design, simulation and analysis of micro electro‐mechanical system microneedle for micropump in drug delivery systems

IET Nanobiotechnology, 2021
This article reports on the mechanical strength analysis and flow characteristics of square tip and circular tip microneedles by employing highly potent drugs that are given in extremely little quantity (microlitres) using MEMS technology, which proves ...
Srinivasa R. Karumuri, Hamza Mohammed, Koushik Guha, Ashok K. Puli, Ameen Einsanwi, Girija S. Kondavitee   +5 more
doaj   +1 more source

Scale‐Down Platforms for Process‐Oriented Enzyme Screening Using Microfluidics

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Enzyme screening platforms are typically evaluated based on their throughput and analytical performance rather than their ability to mimic the conditions encountered at large scale. In bioreactors, enzymes experience gradients in substrate concentration, oxygen availability, pH, temperature, and interfacial exposure, caused by imperfect mixing
Maria I. Rodriguez‐Torres, Elif Erdem, Junhyeong Wang, Ulrich Krühne, Michael Daniele, John M. Woodley   +5 more
wiley   +1 more source

Characteristic of viscous micropump using a rotating cylinder in an elbow duct

Nihon Kikai Gakkai ronbunshu, 2015
The model experiment, the numerical calculation and the theoretical analysis are performed to investigate the characteristic of a viscous micropump by using a rotating cylinder in an elbow duct.
Donghyuk KANG, Kazuhiko YOKOTA, Kotaro SATO   +2 more
doaj   +1 more source

Bubble-driven inertial micropump [PDF]

Physics of Fluids, 2012
The fundamental action of the bubble-driven inertial micropump is investigated. The pump has no moving parts and consists of a thermal resistor placed asymmetrically within a straight channel connecting two reservoirs. Using numerical simulations, the net flow is studied as a function of channel geometry, resistor location, vapor bubble strength, fluid
Torniainen, Erik D., Govyadinov, Alexander N., Markel, David P., Kornilovitch, Pavel E.   +3 more
openaire   +2 more sources

pH Determination in Grape Must by Benchtop NMR Spectroscopy

ChemFoodChem, EarlyView.
Benchtop NMR spectroscopy enables electrode‐free pH determination in grape must. By modeling tartaric acid's chemical shift variation, pH is derived directly from NMR spectra alongside standard composition parameters. Validated against 100 samples, this integrated approach tracks pH changes during acidification, deacidification, and fermentation ...
Billy Salgado, Julian Lueck, Gregor Heinrich, Patrick Nickolaus, Ulrich Fischer, Daniel J. Holland, Fabian Jirasek, Hans Hasse, Lena Keller, Kerstin Münnemann   +9 more
wiley   +1 more source

Photocurable Smart Materials for Femtosecond Laser Micro/Nano‐3D/4D Printing: Toward Interdisciplinary Applications

Interdisciplinary Materials, EarlyView.
This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li, Yu‐Qing Liu, Wei‐Jian Zhong, Dong‐Dong Han, Yong‐Lai Zhang   +4 more
wiley   +1 more source

Design of T-Shaped Micropump Based on Induced Charge Electroosmotic

Abstract and Applied Analysis, 2013
The fluid-driven efficiency of the micropump based on induced charge electroosmotic was studied by numerical simulation method. In this paper, we propose to make some improvement against the T-shaped piping design of micropump, and we embed a janus ...
Kai Zhang, Xiaojing Mi, Bingying Sheng
doaj   +1 more source

New and Emerging Artificial Urinary Sphincters for Male Stress Urinary Incontinence: From Gold Standard to Next Generation

Neurourology and Urodynamics, EarlyView.
ABSTRACT Introduction For more than four decades, the AMS‐800 has remained the clinical benchmark device for the treatment of male stress urinary incontinence (SUI). Although it remains the gold standard for male SUI, the AMS‐800 has continued to have limitations such as suboptimal post‐operative continence rates, fixed hydraulic pressure, need for ...
Erin C. Schnell, Connie N. Wang, Eric S. Rovner   +2 more
wiley   +1 more source