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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., 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).

Paper-based analytical devices for colorimetric detection of: S. aureus and E. coli and their antibiotic resistant strains in milk (2020)
Journal Article
Khan, Q. M., Asif, M., Awan, F. R., Khan, Q. . M., Ngamsom, B., & Pamme, N. (2020). Paper-based analytical devices for colorimetric detection of: S. aureus and E. coli and their antibiotic resistant strains in milk. Analyst, 145(22), 7320-7329. https://doi.org/10.1039/d0an01075h

Animal derived milk which is an important part of human diet due to its high nutritional value not only supports humans but also presents a growth environment for pathogenic bacteria. Milk may become contaminated with bacteria through udder infection... Read More about Paper-based analytical devices for colorimetric detection of: S. aureus and E. coli and their antibiotic resistant strains in milk.

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), 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.

On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers (2020)
Journal Article
Esfahani, M. M., Patinglag, L., Esfahani, M. M. N., Ragunathan, K., He, P., Brown, N. J., …Tarn, M. D. (2020). On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers. Analyst, 145(14), 4920-4930. https://doi.org/10.1039/c9an01881f

The miniaturisation of positron emission tomography (PET) radiotracer production is facilitating a move towards a dose-on-demand strategy that would enable a stratified approach to patient diagnostics, but while the on-chip synthesis steps have been... Read More about On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers.

Biosensor for determining average iron content of ferritin by measuring its optical dispersion (2020)
Journal Article
Gupta, R., Alamrani, N. A., Greenway, G. M., Pamme, N., & Goddard, N. J. (2020). Biosensor for determining average iron content of ferritin by measuring its optical dispersion. Proceedings of SPIE, 11235, https://doi.org/10.1117/12.2542162

© 2020 SPIE. Average iron content of ferritin has a potential to serve as a biomarker for early identification of high-risk trauma patients at point-of-care (PoC). Appropriate therapies can then be administered to reduce morbidity and mortality. Curr... Read More about Biosensor for determining average iron content of ferritin by measuring its optical dispersion.

FISH and chips: a review of microfluidic platforms for FISH analysis (2020)
Journal Article
Rodriguez-Mateos, P., Azevedo, N. F., Almeida, C., & Pamme, N. (2020). FISH and chips: a review of microfluidic platforms for FISH analysis. Medical Microbiology and Immunology, 209(3), 373-391. https://doi.org/10.1007/s00430-019-00654-1

Fluorescence in situ hybridization (FISH) allows visualization of specific nucleic acid sequences within an intact cell or a tissue section. It is based on molecular recognition between a fluorescently labeled probe that penetrates the cell membrane... Read More about FISH and chips: a review of microfluidic platforms for FISH analysis.

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.

A feasibility study of a leaky waveguide aptasensor for thrombin (2019)
Journal Article
Alamrani, N. A., Greenway, G. M., Pamme, N., Goddard, N. J., & Gupta, R. (2019). A feasibility study of a leaky waveguide aptasensor for thrombin. Analyst, 144(20), 6048-6054. https://doi.org/10.1039/c9an01421g

This proof-of-principle study demonstrates the feasibility of a leaky waveguide (LW) aptasensor, where aptamers were immobilised in a mesoporous chitosan waveguiding film for the detection of thrombin. This work has demonstrated that aptamers immobil... Read More about A feasibility study of a leaky waveguide aptasensor for thrombin.

“Learning on a chip:” Microfluidics for formal and informal science education (2019)
Journal Article
Rackus, D. G., Riedel-Kruse, I. H., & Pamme, N. (2019). “Learning on a chip:” Microfluidics for formal and informal science education. Biomicrofluidics, 13(4), https://doi.org/10.1063/1.5096030

© 2019 Author(s). Microfluidics is a technique for the handling of small volumes of liquids on the order of picoliters to nanoliters and has impact for miniaturized biomedical science and fundamental research. Because of its multi- and interdisciplin... Read More about “Learning on a chip:” Microfluidics for formal and informal science education.

A method for determining average iron content of ferritin by measuring its optical dispersion (2019)
Journal Article
Gupta, R., Alamrani, N. A., Greenway, G. M., Pamme, N., & Goddard, N. J. (2019). A method for determining average iron content of ferritin by measuring its optical dispersion. Analytical chemistry, 91(11), 7366-7372. https://doi.org/10.1021/acs.analchem.9b01231

© 2019 American Chemical Society. We report a method where the refractive index increments of an iron storage protein, ferritin, and apoferritin (ferritin minus iron) were measured over the wavelength range of 450-678 nm to determine the average iron... Read More about A method for determining average iron content of ferritin by measuring its optical dispersion.

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., …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.

Stereolithographic 3D printing of extrinsically self-healing composites (2019)
Journal Article
Sanders, P., Young, A. J., Qin, Y., Fancey, K. S., Reithofer, M. R., Guillet-Nicolas, R., …Chin, J. M. (2019). Stereolithographic 3D printing of extrinsically self-healing composites. Scientific reports, 9(1), https://doi.org/10.1038/s41598-018-36828-9

We demonstrate for the first time the direct stereolithographic 3D printing of an extrinsically self-healing composite, comprised of commercial photocurable resin modified with anisole and PMMA-filled microcapsules. The composites demonstrate solvent... Read More about Stereolithographic 3D printing of extrinsically self-healing composites.

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.

Microcapsules as assay compartments formed through layer-by-layer deposition (2018)
Journal Article
Alorabi, A. Q., Tarn, M. D., Thomas, M., Paunov, V. N., & Pamme, N. (2018). Microcapsules as assay compartments formed through layer-by-layer deposition. Analytical Methods, 10(44), 5335-5340. https://doi.org/10.1039/c8ay02012d

We investigate the potential of using microcapsules, generated through layer-by-layer assembly, as reaction compartments for bioassays. A streptavidin-biotin and an esterase-fluorescein diacetate (FDA) assay were employed for proof-of-concept. Strept... Read More about Microcapsules as assay compartments formed through layer-by-layer deposition.

Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals (2018)
Journal Article
Tarn, M. D., Kızılyer, N. Y., Esfahani, M. M. N., Joshi, P., Brown, N. J., Pamme, N., …Archibald, S. J. (2018). Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals. Chemistry : a European journal, 24(52), 13749-13753. https://doi.org/10.1002/chem.201802395

A miniaturized radio-HPLC detector has been developed comprising a microfluidic device fabricated from plastic scintillator in combination with a silicon photomultiplier light sensor, and tested with samples containing a positron-emitting radionuclid... Read More about Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals.

CFD analysis and experimental validation of magnetic droplet generation and deflection across multilaminar flow streams (2018)
Conference Proceeding
Gómez-Pastora, J., Karampelas, I. H., Alorabi, A. Q., Tarn, M. D., Bringas, E., Iles, A., …Ortiz, I. (2018). CFD analysis and experimental validation of magnetic droplet generation and deflection across multilaminar flow streams. In Biotech, biomaterials and biomedical: TechConnect briefs 2018, 182-185

© 2018 OOSV. All rights reserved. The use of droplet-based microfluidic systems has increased in the last decade due to the advantages these systems present such as compatibility with many chemical and biological reagents, capability of performing a... Read More about CFD analysis and experimental validation of magnetic droplet generation and deflection across multilaminar flow streams.

Fabrication of tailorable pH responsive cationic amphiphilic microgels on a microfluidic device for drug release (2017)
Journal Article
Lu, B., Tarn, M. D., Pamme, N., & Georgiou, T. K. (2018). Fabrication of tailorable pH responsive cationic amphiphilic microgels on a microfluidic device for drug release. Journal of Polymer Science Part A: Polymer Chemistry, 56(1), 59-66. https://doi.org/10.1002/pola.28860

Cationic, amphiphilic microgels of differing compositions based on hydrophilic, pH, and thermoresponsive 2-(dimethylamino)ethyl methacrylate (DMAEMA) and hydrophobic, nonionic n-butyl acrylate (BuA) are synthesized using a lab-on-a-chip device. Hydro... Read More about Fabrication of tailorable pH responsive cationic amphiphilic microgels on a microfluidic device for drug release.

On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules (2017)
Journal Article
Alorabi, A. Q., Tarn, M. D., Gómez-Pastora, J., Bringas, E., Ortiz, I., Paunov, V. N., & Pamme, N. (2017). On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules. Lab on a chip, 17(22), 3785-3795. https://doi.org/10.1039/c7lc00918f

Polyelectrolyte (PE) microcapsules for drug delivery are typically fabricated via layer-by-layer (LbL) deposition of PE layers of alternating charge on sacrificial template microparticles, which usually requires multiple incubation and washing steps... Read More about On-chip polyelectrolyte coating onto magnetic droplets – towards continuous flow assembly of drug delivery capsules.

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., …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.