Results 31 to 40 of about 79,645 (218)

Lab-on-a-Chip method uncertanties in determination of high-molecular-weight glutenin subunits [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
Polymeric wheat endosperm proteins, especially the high-molecular-weight glutenin subunits (HMW-GS), are probably the most interesting protein fraction giving the essential information about bread-making quality of wheat flour.
Živančev Dragan R.   +4 more
doaj   +1 more source

Nanoparticle Printing for Microfluidic Applications: Bipolar Electrochemistry and Localized Raman Sensing Spots

open access: yesMicromachines, 2023
The local integration of metal nanoparticle films on 3D-structured polydimethylsiloxane (PDMS)-based microfluidic devices is of high importance for applications including electronics, electrochemistry, electrocatalysis, and localized Raman sensing ...
Alessia Broccoli   +5 more
doaj   +1 more source

Compartmentalized 3D Tissue Culture Arrays under Controlled Microfluidic Delivery

open access: yesScientific Reports, 2017
We demonstrate an in vitro microfluidic cell culture platform that consists of periodic 3D hydrogel compartments with controllable shapes. The microchip is composed of approximately 500 discontinuous collagen gel compartments locally patterned in between
Burcu Gumuscu   +4 more
doaj   +1 more source

Ruthenium Oxide pH Sensing for Organs-On-Chip Studies

open access: yesProceedings, 2018
A ruthenium oxide (RuOx) electrode is being developed as potentiometric pH sensor for organs-on-chip applications. Open-circuit potential (OCP) of the RuOx electrode showed a response of −58.05 mV/pH, with no cross-sensitivity to potentially ...
Esther Tanumihardja   +2 more
doaj   +1 more source

Compact Microfluidic Platform with LED Light-Actuated Valves for Enzyme-Linked Immunosorbent Assay Automation

open access: yesBiosensors, 2022
Lab-on-a-chip devices incorporating valves and pumps can perform complex assays involving multiple reagents. However, the instruments used to drive these chips are complex and bulky.
Mireia Burdó-Masferrer   +6 more
doaj   +1 more source

Online monitoring of biofouling using coaxial stub resonator technique

open access: yesSensing and Bio-Sensing Research, 2015
Here we demonstrate the proof-of-principle that a coaxial stub resonator can be used to detect early stages of biofilm formation. After promising field tests using a stub resonator with a stainless steel inner conductor as sensitive element, the ...
N.A. Hoog   +6 more
doaj   +1 more source

Reference-Electrode Free pH Sensing Using Impedance Spectroscopy

open access: yesProceedings, 2018
We present a reference-electrode free sensor able to measure both pH and conductivitybased on impedance spectroscopy. The electrode is made of a layer of indium-tin-oxide (ITO).
Laura Folkertsma   +4 more
doaj   +1 more source

Electrofusion of single cells in picoliter droplets

open access: yesScientific Reports, 2018
We present a microfluidic chip that enables electrofusion of cells in microdroplets, with exchange of nuclear components. It is shown, to our knowledge for the first time, electrofusion of two HL60 cells, inside a microdroplet.
Rogier M. Schoeman   +5 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Predicting Dimensions in Microfluidic Paper Based Analytical Devices

open access: yesSensors, 2020
The main problem for the expansion of the use of microfluidic paper-based analytical devices and, thus, their mass production is their inherent lack of fluid flow control due to its uncontrolled fabrication protocols.
Raquel Catalan-Carrio   +3 more
doaj   +1 more source

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