A nanowire-integrated thermoresponsive microfluidic platform for on-demand enrichment and colorimetric detection of pathogenic bacteria

2019 ◽  
Vol 7 (46) ◽  
pp. 7301-7305
Author(s):  
Xuancheng Du ◽  
Chun Wu ◽  
Weijing Wang ◽  
Lin Qiu ◽  
Pengju Jiang ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Colorimetric Detection ◽  
Microfluidic Platform ◽  
On Demand

A nanowire-integrated thermoresponsive microfluidic platform has been presented for on-demand enrichment and colorimetric detection of pathogenic bacteria.

scholarly journals New portable smartphone-based PDMS microfluidic kit for the simultaneous colorimetric detection of arsenic and mercury

RSC Advances ◽  
2018 ◽  
Vol 8 (48) ◽  
pp. 27091-27100 ◽  
Author(s):  
Abbas Motalebizadeh ◽  
Hasan Bagheri ◽  
Sasan Asiaei ◽  
Nasim Fekrat ◽  
Abbas Afkhami
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Point Of Care ◽  
Colorimetric Detection ◽  
Microfluidic Platform

A smartphone-based microfluidic platform was developed for point-of-care (POC) detection using surface plasmon resonance (SPR) of gold nanoparticles (GNPs).

Hand-powered centrifugal microfluidic platform inspired by the spinning top for sample-to-answer diagnostics of nucleic acids

Lab on a Chip ◽  
2018 ◽  
Vol 18 (4) ◽  
pp. 610-619 ◽  
Author(s):  
Lu Zhang ◽  
Fei Tian ◽  
Chao Liu ◽  
Qiang Feng ◽  
Tingxuan Ma ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Pathogenic Bacteria ◽  
Simultaneous Detection ◽  
Microfluidic Platform ◽  
Small Disc ◽  
Spinning Top

A hand-powered centrifugal microfluidic platform enables simultaneous detection of pathogenic bacteria within a small disc in an electricity-free manner.

scholarly journals Paper-based analytical devices for colorimetric detection of S. aureus and E. coli and their antibiotic resistant strains in milk

The Analyst ◽  
2020 ◽  
Vol 145 (22) ◽  
pp. 7320-7329
Author(s):  
Muhammad Asif ◽  
Fazli Rabbi Awan ◽  
Qaiser Mahmood Khan ◽  
Bongkot Ngamsom ◽  
Nicole Pamme
Keyword(s):  
Pathogenic Bacteria ◽  
Colorimetric Detection ◽  
Antibiotic Resistant ◽  
Beta Lactamases ◽  
E Coli ◽  
Milk Samples ◽  
Extended Spectrum Beta Lactamases ◽  
Paper Microfluidic ◽  
Resistant Strains ◽  
Appropriate Prescription

We investigate paper microfluidic devices for detection of pathogenic bacteria and their sensitivity towards β-lactamase and Extended Spectrum Beta Lactamases (ESBLs) in milk samples to enable appropriate prescription of antibiotics for mastitis.

scholarly journals Microfluidic on-demand droplet generation, storage, retrieval, and merging for single-cell pairing

Lab on a Chip ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 493-502 ◽  
Author(s):  
Hesam Babahosseini ◽  
Tom Misteli ◽  
Don L. DeVoe
Keyword(s):  
Single Cell ◽  
Aqueous Phase ◽  
Microfluidic Device ◽  
Droplet Generation ◽  
Microfluidic Platform ◽  
On Demand

A multifunctional microfluidic platform combining on-demand aqueous-phase droplet generation, multi-droplet storage, and controlled merging of droplets selected from a storage library in a single integrated microfluidic device is described.

Colorimetric detection of pathogenic bacteria using platinum-coated magnetic nanoparticle clusters and magnetophoretic chromatography

2015 ◽  
Vol 883 ◽  
pp. 61-66 ◽  
Author(s):  
Donghoon Kwon ◽  
Sanghee Lee ◽  
Myung Mo Ahn ◽  
In Seok Kang ◽  
Ki-Hwan Park ◽  
...  
Keyword(s):  
Magnetic Nanoparticle ◽  
Pathogenic Bacteria ◽  
Colorimetric Detection ◽  
Nanoparticle Clusters

Electrostatically excited liquid marble as a micromixer

2021 ◽  
Author(s):  
Nhat-Khuong Nguyen ◽  
Pradip Singha ◽  
Hongjie An ◽  
Hoang-Phuong Phan ◽  
Nam-Trung Nguyen ◽  
...  
Keyword(s):  
Microfluidic Platform ◽  
On Demand ◽  
Liquid Marble

Liquid marble is a promising microfluidic platform for microreactor applications. However, the lack of contactless and on-demand mixing strategies significantly hinders its potential. This paper reports the use of electrostatic...

scholarly journals Electroceutical disinfection strategies impair the motility of pathogenic Pseudomonas aeruginosa and Escherichia coli

2016 ◽  
Author(s):  
Kristina Doxsee ◽  
Ryan Berthelot ◽  
Suresh Neethirajan
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Acetic Acid ◽  
Mammalian Cells ◽  
Pathogenic Bacteria ◽  
Electrical Potential ◽  
Microfluidic Platform ◽  
E Coli ◽  
Therapeutic Benefits ◽  
The Impact

Electrotaxis or galvanotaxis refers to the migration pattern of cells induced in response to electrical potential. Although it has been extensively studied in mammalian cells, electrotaxis has not been explored in detail in bacterial cells; information regarding the impact of current on pathogenic bacteria is severely lacking. Therefore, we designed a series of single and multi-cue experiments to assess the impact of varying currents on bacterial motility dynamics in pathogenic multi-drug resistant (MDR) strains of Pseudomonas aeruginosa and Escherichia coli using a microfluidic platform. Motility plays key roles in bacterial migration and the colonization of surfaces during the formation of biofilms, which are inherently recalcitrant to removal and resistant to traditional disinfection strategies (e.g. antibiotics). Use of the microfluidic platform allows for exposure to current, which can be supplied at a range that is biocidal to bacteria, yet physiologically safe in humans (single cue). This system also allows for multi-cue experiments where acetic acid, a relatively safe compound with anti-fouling/antimicrobial properties, can be combined with current to enhance disinfection. These strategies may offer substantial therapeutic benefits, specifically for the treatment of biofilm infections, such as those found in the wound environment. Furthermore, microfluidic systems have been successfully used to model the unique microfluidic dynamics present in the wound environment, suggesting that these investigations could be extended to more complex biological systems. Our results showed that the application of current in combination with acetic acid has profound inhibitory effects on MDR strains of P. aeruginosa and E. coli, even with brief applications. Specifically, E. coli motility dynamics and cell survival were significantly impaired starting at a concentration of 125 μA DC and 0.31% acetic acid, while P. aeruginosa was impaired at 70 μA and 0.31% acetic acid. As these strains are relevant wound pathogens, it is likely that this strategy would be effective against similar strains in vivo and could represent a new approach to hasten wound healing.

Biosensor Development for the Rapid Colorimetric Detection of Pathogenic Bacteria

2013 ◽  
Author(s):  
Sarah L. Castro ◽  
William T. Wallace ◽  
Kathie Thomas-Keprta ◽  
Lindsay Keller ◽  
Mark Ott
Keyword(s):  
Pathogenic Bacteria ◽  
Colorimetric Detection
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