Outputs (17)

Citizen-led sampling to monitor phosphate levels in freshwater environments using a simple paper microfluidic device (2021)
Journal Article
Richardson, S., Iles, A., Rotchell, J. M., Charlson, T., Hanson, A., Lorch, M., & Pamme, N. (2021). Citizen-led sampling to monitor phosphate levels in freshwater environments using a simple paper microfluidic device. PLoS ONE, 16(12), Article e0260102. https://doi.org/10.1371/journal.pone.0260102

Contamination of waterways is of increasing concern, with recent studies demonstrating elevated levels of antibiotics, antidepressants, household, agricultural and industrial chemicals in freshwater systems. Thus, there is a growing demand for method... Read More about Citizen-led sampling to monitor phosphate levels in freshwater environments using a simple paper microfluidic device.

Spheroid-on-chip microfluidic technology for the evaluation of the impact of continuous flow on metastatic potential in cancer models in vitro (2021)
Journal Article
Collins, T., Pyne, E., Christensen, M., Iles, A., Pamme, N., & Pires, I. M. (2021). Spheroid-on-chip microfluidic technology for the evaluation of the impact of continuous flow on metastatic potential in cancer models in vitro. Biomicrofluidics, 15(4), Article 044103. https://doi.org/10.1063/5.0061373

The majority of cancer deaths are linked to tumor spread, or metastasis, but 3D in vitro metastasis models relevant to the tumor microenvironment (including interstitial fluid flow) remain an area of unmet need. Microfluidics allows us to introduce c... Read More about Spheroid-on-chip microfluidic technology for the evaluation of the impact of continuous flow on metastatic potential in cancer models in vitro.

A lab-on-a-chip platform for integrated extraction and detection of SARS-CoV-2 RNA in resource-limited settings (2021)
Journal Article
Rodriguez-Mateos, P., Ngamsom, B., Walter, C., Dyer, C. E., Gitaka, J., Iles, A., & Pamme, N. (2021). A lab-on-a-chip platform for integrated extraction and detection of SARS-CoV-2 RNA in resource-limited settings. Analytica Chimica Acta, 1177, Article 338758. https://doi.org/10.1016/j.aca.2021.338758

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the unprecedented global pandemic of coronavirus disease-2019 (COVID-19). Efforts are needed to develop rapid and accurate diagnostic tools for extensive testing, allowing for ef... Read More about A lab-on-a-chip platform for integrated extraction and detection of SARS-CoV-2 RNA in resource-limited settings.

Inertial focusing of microparticles, bacteria, and blood in serpentine glass channels (2021)
Journal Article
Rodriguez-Mateos, P., Ngamsom, B., Dyer, C. E., Iles, A., & Pamme, N. (in press). Inertial focusing of microparticles, bacteria, and blood in serpentine glass channels. ELECTROPHORESIS, https://doi.org/10.1002/elps.202100083

Early detection of pathogenic microorganisms is pivotal to diagnosis and prevention of health and safety crises. Standard methods for pathogen detection often rely on lengthy culturing procedures, confirmed by biochemical assays, leading to >24 h for... Read More about Inertial focusing of microparticles, bacteria, and blood in serpentine glass channels.

Detection of doxycycline hyclate and oxymetazoline hydrochloride in pharmaceutical preparations via spectrophotometry and microfluidic paper-based analytical device (μPADs) (2020)
Journal Article
Abdulsattar, J. O., Hadi, H., Richardson, S., Iles, A., & Pamme, N. (2020). Detection of doxycycline hyclate and oxymetazoline hydrochloride in pharmaceutical preparations via spectrophotometry and microfluidic paper-based analytical device (μPADs). Analytica Chimica Acta, 1136, 196-204. https://doi.org/10.1016/j.aca.2020.09.045

There is growing demand for simple to operate, sensitive, on-site quantitative assays to investigate concentrations of drug molecules in pharmaceutical preparations for quality assurance. Here, we report on the development of two colorimetric analysi... Read More about Detection of doxycycline hyclate and oxymetazoline hydrochloride in pharmaceutical preparations via spectrophotometry and microfluidic paper-based analytical device (μPADs).

Microfluidic-Based Electrochemical Immunosensing of Ferritin (2020)
Journal Article
Garg, M., Christensen, M. G., Iles, A., Sharma, A. L., Singh, S., & Pamme, N. (2020). Microfluidic-Based Electrochemical Immunosensing of Ferritin. Biosensors, 10(8), Article 91. https://doi.org/10.3390/bios10080091

Ferritin is a clinically important biomarker which reflects the state of iron in the body and is directly involved with anemia. Current methods available for ferritin estimation are generally not portable or they do not provide a fast response. To co... Read More about Microfluidic-Based Electrochemical Immunosensing of Ferritin.

Rapid Detection of Group B Streptococcus (GBS) from artificial urine samples based on IFAST and ATP Bioluminescence Assay: from development to practical challenges during protocol testing in Kenya (2019)
Journal Article
Ngamsom, B., Wandera, E. A., Iles, A., Kimani, R., Muregi, F., Gitaka, J., & Pamme, N. (2019). Rapid Detection of Group B Streptococcus (GBS) from artificial urine samples based on IFAST and ATP Bioluminescence Assay: from development to practical challenges during protocol testing in Kenya. Analyst, 144(23), 6889-6897. https://doi.org/10.1039/c9an01808e

© The Royal Society of Chemistry 2019. We report the rapid detection (20 min) of Streptococcus agalactiae, Group B Streptococcus (GBS) employing on-chip magnetic isolation of GBS based on immiscible filtration assisted by surface tension (IFAST), fol... Read More about Rapid Detection of Group B Streptococcus (GBS) from artificial urine samples based on IFAST and ATP Bioluminescence Assay: from development to practical challenges during protocol testing in Kenya.

Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers (2019)
Journal Article
Gómez-Pastora, J., Amiri Roodan, V., Karampelas, I. H., Alorabi, A. Q., Tarn, M. D., Iles, A., Bringas, E., Paunov, V. N., Pamme, N., Furlani, E. P., & Ortiz, I. (2019). Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers. Journal of physical chemistry. C, 123(15), 10065-10080. https://doi.org/10.1021/acs.jpcc.9b01393

Copyright © 2019 American Chemical Society. In this study, a computational fluid dynamics approach is implemented to investigate the dynamic behavior of continuous-flow droplet microfluidics. The developed approach predicts both droplet generation an... Read More about Two-step numerical approach to predict ferrofluid droplet generation and manipulation inside multilaminar flow chambers.

A label-free aptamer-based nanogap capacitive biosensor with greatly diminished electrode polarization effects (2019)
Journal Article
Ghobaei Namhil, Z., Kemp, C., Verrelli, E., Iles, A., Pamme, N., Adawi, A. M., & Kemp, N. (2019). A label-free aptamer-based nanogap capacitive biosensor with greatly diminished electrode polarization effects. Physical chemistry chemical physics : PCCP, 21(2), 681-691. https://doi.org/10.1039/c8cp05510f

A significant impediment to the use of impedance spectroscopy in bio-sensing is the electrode polarization effect that arises from the movement of free ions to the electrode-solution interface, forming an electrical double layer (EDL). The EDL screen... Read More about A label-free aptamer-based nanogap capacitive biosensor with greatly diminished electrode polarization effects.

A microfluidic device for rapid screening of E. coli O157:H7 based on IFAST and ATP bioluminescence assay for water analysis (2017)
Journal Article
Ngamsom, B., Truyts, A., Fourie, L., Kumar, S., Tarn, M. D., Iles, A., Moodley, K., Land, K. J., & Pamme, N. (2017). A microfluidic device for rapid screening of E. coli O157:H7 based on IFAST and ATP bioluminescence assay for water analysis. Chemistry: a European journal, 23(52), 12754-12757. https://doi.org/10.1002/chem.201703487

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim We present a simple microfluidic system for rapid screening of Escherichia coli (E. coli) O157:H7 employing the specificity of immunomagnetic separation (IMS) via immiscible filtration assisted by s... Read More about A microfluidic device for rapid screening of E. coli O157:H7 based on IFAST and ATP bioluminescence assay for water analysis.

Definition of a magnetic susceptibility of conglomerates with magnetite particles. Particularities of defining single particle susceptibility (2017)
Journal Article
Sandulyak, A. A., Sandulyak, A. V., Ershova, V., Pamme, N., Ngmasom, B., & Iles, A. (2017). Definition of a magnetic susceptibility of conglomerates with magnetite particles. Particularities of defining single particle susceptibility. Journal of Magnetism and Magnetic Materials, 441, 724-734. https://doi.org/10.1016/j.jmmm.2017.06.027

Data of a magnetic susceptibility of ferro-and the ferrimagnetic particles of many technogenic, natural, special media are especially demanded for the solution of various tasks connected with purposeful magnetic impact on these particles. One of prod... Read More about Definition of a magnetic susceptibility of conglomerates with magnetite particles. Particularities of defining single particle susceptibility.

Cell sorting by endocytotic capacity in a microfluidic magnetophoresis device (2011)
Journal Article
Robert, D., Pamme, N., Conjeaud, H., Gazeau, F., Iles, A., & Wilhelm, C. (2011). Cell sorting by endocytotic capacity in a microfluidic magnetophoresis device. Lab on a chip, 11(11), 1902-1910. https://doi.org/10.1039/c0lc00656d

Magnetically labelled cells are finding a wealth of applications for in vitro analysis as well as in vivo treatments. Sorting of cells into subpopulations based on their magnetite loading is an important step in such procedures. Here, we study the so... Read More about Cell sorting by endocytotic capacity in a microfluidic magnetophoresis device.

Rapid, multistep on-chip DNA hybridisation in continuous flow on magnetic particles (2010)
Journal Article
Vojtíšek, M., Iles, A., & Pamme, N. (2010). Rapid, multistep on-chip DNA hybridisation in continuous flow on magnetic particles. Biosensors & bioelectronics, 25(9), 2172-2176. https://doi.org/10.1016/j.bios.2010.01.034

DNA hybridisation is an important tool for bioanalytical research and clinical diagnostics; conventional methods, however, require long incubation times and numerous washing steps, rendering the procedure time consuming and labour intensive. In this... Read More about Rapid, multistep on-chip DNA hybridisation in continuous flow on magnetic particles.

The importance of particle type selection and temperature control for on-chip free-flow magnetophoresis (2009)
Journal Article
Tarn, M. D., Peyman, S. A., Robert, D., Iles, A., Wilhelm, C., & Pamme, N. (2009). The importance of particle type selection and temperature control for on-chip free-flow magnetophoresis. Journal of Magnetism and Magnetic Materials, 321(24), 4115-4122. https://doi.org/10.1016/j.jmmm.2009.08.016

Free-flow magnetophoresis is becoming a popular technique for the separation and manipulation of magnetic particles and materials in microsystems. A wide variety of magnetic particles are commercially available that differ greatly in size and in magn... Read More about The importance of particle type selection and temperature control for on-chip free-flow magnetophoresis.

Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow (2009)
Journal Article
Peyman, S. A., Iles, A., & Pamme, N. (2009). Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow. Lab on a chip, 9(21), 3110-3117. https://doi.org/10.1039/b904724g

An extremely versatile microfluidic device is demonstrated in which multi-step (bio) chemical procedures can be performed in continuous flow. The system operates by generating several co-laminar flow streams, which contain reagents for specific (bio)... Read More about Mobile magnetic particles as solid-supports for rapid surface-based bioanalysis in continuous flow.

Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices (2009)
Journal Article
Peyman, S. A., Kwan, E. Y., Margarson, O., Iles, A., & Pamme, N. (2009). Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices. Journal of Chromatography A, 1216(52), 9055-9062. https://doi.org/10.1016/j.chroma.2009.06.039

We report the exploration of diamagnetic repulsion forces for the selective manipulation of microparticles inside microfluidic devices. Diamagnetic materials such as polymers are repelled from magnetic fields, an effect greatly enhanced by suspending... Read More about Diamagnetic repulsion—A versatile tool for label-free particle handling in microfluidic devices.

Rapid on-chip multi-step (bio)chemical procedures in continuous flow - manoeuvring particles through co-laminar reagent streams (2008)
Journal Article
Peyman, S. A., Iles, A., & Pamme, N. (2008). Rapid on-chip multi-step (bio)chemical procedures in continuous flow - manoeuvring particles through co-laminar reagent streams. Chemical communications : Chem comm / the Royal Society of Chemistry, 1220-1222. https://doi.org/10.1039/b716532c

We introduce a novel and extremely versatile microfluidic platform in which tedious multi-step biochemical processes can be performed in continuous flow within a fraction of the time required for conventional methods.