All Outputs (125)

Methodology for the synthesis of methacrylate monomers using designed single mode microwave applicators (2019)
Journal Article
Dundas, A. A., Hook, A. L., Alexander, M. R., Kingman, S. W., Dimitrakis, G., & Irvine, D. J. (2019). Methodology for the synthesis of methacrylate monomers using designed single mode microwave applicators. Reaction Chemistry and Engineering, 4(8), 1472-1476. https://doi.org/10.1039/c9re00173e

© 2019 The Royal Society of Chemistry. A novel single-well prototype high throughput microwave reactor geometry has been produced and shown to be capable of synthesizing an array of non-commercially available methacrylate monomers. The reactor, which... Read More about Methodology for the synthesis of methacrylate monomers using designed single mode microwave applicators.

Polymer microparticles with defined surface chemistry and topography mediate the formation of stem cell aggregates and cardiomyocyte function (2019)
Journal Article
Alvarez-Paino, M., Amer, M. H., Nasir, A., Cuzzucoli Crucitti, V., Thorpe, J., Burroughs, L., …Rose, F. (2019). Polymer microparticles with defined surface chemistry and topography mediate the formation of stem cell aggregates and cardiomyocyte function. ACS Applied Materials and Interfaces, 11(38), 34560-34574. https://doi.org/10.1021/acsami.9b04769

Surface-functionalized microparticles are relevant to fields spanning engineering and biomedicine, with uses ranging from cell culture to advanced cell delivery. Varying topographies of biomaterial surfaces are also being investigated as mediators of... Read More about Polymer microparticles with defined surface chemistry and topography mediate the formation of stem cell aggregates and cardiomyocyte function.

Water-Based 3D Inkjet Printing of an Oral Pharmaceutical Dosage Form (2019)
Journal Article
Cader, H. K., Rance, G. A., Alexander, M. R., Gonçalves, A. D., Roberts, C. J., Tuck, C. J., & Wildman, R. D. (2019). Water-Based 3D Inkjet Printing of an Oral Pharmaceutical Dosage Form. International Journal of Pharmaceutics, 564, 359-368. https://doi.org/10.1016/j.ijpharm.2019.04.026

Inkjet printing is a form of additive manufacturing where liquid droplets are selectively deposited onto a substrate followed by solidification. The process provides significant potential advantages for producing solid oral dosage forms or tablets, i... Read More about Water-Based 3D Inkjet Printing of an Oral Pharmaceutical Dosage Form.

Remotely controlled in situ growth of silver microwires forming bioelectronic interfaces (2019)
Journal Article
Sanjuan-Alberte, P., Saleh, E., Shaw, A. J., Lacalendola, N., Willmott, G., Vaithilingam, J., …Rawson, F. J. (2019). Remotely controlled in situ growth of silver microwires forming bioelectronic interfaces. ACS Applied Materials and Interfaces, 11(9), 8928-8936. https://doi.org/10.1021/acsami.8b22075

There is a pressing need to advance our ability to construct three-dimensional (3D) functional bioelectronic interfaces. Additionally, to ease the transition to building cellular electronic systems, a remote approach to merge electrical components wi... Read More about Remotely controlled in situ growth of silver microwires forming bioelectronic interfaces.

Lipids and polymers in pharmaceutical technology: lifelong companions (2019)
Journal Article
Siepmann, J., Faham, A., Clas, S., Boyd, B. J., Jannin, V., Bernkop-Schnürch, A., …Leroux, J. (2019). Lipids and polymers in pharmaceutical technology: lifelong companions. International Journal of Pharmaceutics, 558, 128-142. https://doi.org/10.1016/j.ijpharm.2018.12.080

In pharmaceutical technology, lipids and polymers are considered pillar excipients for the fabrication of most dosage forms, irrespective of the administration route. They play various roles ranging from support vehicles to release rate modifiers, st... Read More about Lipids and polymers in pharmaceutical technology: lifelong companions.

Wireless bioelectronic nanosystems for intracellular communication (2018)
Other
Sanjuán-Alberte, P., Abayzeed, S. A., Fuentes-Domínguez, R., Alea-Reyesd, M. E., Clark, M., Hague, R., …Rawson, F. (2018). Wireless bioelectronic nanosystems for intracellular communication

In order for the field of bioelectronics to make an impact on healthcare, there is an urgent requirement for the development of “wireless” electronic systems to both sense and actuate cell behaviour. Herein we report the first example of an innovativ... Read More about Wireless bioelectronic nanosystems for intracellular communication.

Extrusion 3D printing of paracetamol tablets from a single formulation with tunable release profiles through control of tablet geometry (2018)
Journal Article
Khaled, S. A., Alexander, M. R., Irvine, D. J., Wildman, R. D., Wallace, M. J., Sharpe, S., …Roberts, C. J. (2018). Extrusion 3D printing of paracetamol tablets from a single formulation with tunable release profiles through control of tablet geometry. AAPS PharmSciTech, 19(8), 3403–3413. https://doi.org/10.1208/s12249-018-1107-z

An extrusion based 3D printer was used to fabricate paracetamol tablets with different geometries (mesh, ring, and solid) from a single paste-based formulation formed from standard pharmaceutical ingredients. The tablets demonstrate that tunable drug... Read More about Extrusion 3D printing of paracetamol tablets from a single formulation with tunable release profiles through control of tablet geometry.

High-Throughput Miniaturized Screening of Nanoparticle Formation via Inkjet Printing (2018)
Journal Article
Styliari, I. D., Conte, C., Pearce, A. K., Hüsler, A., Cavanagh, R. J., Limo, M. J., …Taresco, V. (2018). High-Throughput Miniaturized Screening of Nanoparticle Formation via Inkjet Printing. Macromolecular Materials and Engineering, 303(8), 1-9. https://doi.org/10.1002/mame.201800146

The self‐assembly of specific polymers into well‐defined nanoparticles (NPs) is of great interest to the pharmaceutical industry as the resultant materials can act as drug delivery vehicles. In this work, a high‐throughput method to screen the abilit... Read More about High-Throughput Miniaturized Screening of Nanoparticle Formation via Inkjet Printing.

Improved extraction repeatability and spectral reproducibility for liquid extraction surface analysis–mass spectrometry using superhydrophobic–superhydrophilic patterning (2018)
Journal Article
Meurs, J., Alexander, M. R., Levkin, P. A., Widmaier, S., Bunch, J., Barrett, D. A., & Kim, D. (in press). Improved extraction repeatability and spectral reproducibility for liquid extraction surface analysis–mass spectrometry using superhydrophobic–superhydrophilic patterning. Analytical Chemistry, 90(10), https://doi.org/10.1021/acs.analchem.8b00973

A major problem limiting reproducible use of liquid extraction surface analysis (LESA) array sampling of dried surface-deposited liquid samples is the unwanted spread of extraction solvent beyond the dried sample limits, resulting in unreliable data.... Read More about Improved extraction repeatability and spectral reproducibility for liquid extraction surface analysis–mass spectrometry using superhydrophobic–superhydrophilic patterning.

Effect of surfactant on Pseudomonas aeruginosa colonization of polymer microparticles and flat films (2018)
Journal Article
Hüsler, A., Haas, S., Parry, L., Romero, M., Nisisako, T., Williams, P., …Alexander, M. R. (2018). Effect of surfactant on Pseudomonas aeruginosa colonization of polymer microparticles and flat films. RSC Advances, 8(28), https://doi.org/10.1039/c8ra01491d

Micro- and nanoparticles are of great interest because of their potential for trafficking into the body for applications such as low-fouling coatings on medical devices, drug delivery in pharmaceutics and cell carriers in regenerative medicine strate... Read More about Effect of surfactant on Pseudomonas aeruginosa colonization of polymer microparticles and flat films.

Electrochemically stimulating developments in bioelectronic medicine (2018)
Journal Article
Sanjuan-Alberte, P., Alexander, M. R., Hague, R. J., & Rawson, F. J. (2018). Electrochemically stimulating developments in bioelectronic medicine. Bioelectronic Medicine, 4(1), https://doi.org/10.1186/s42234-018-0001-z

Cellular homeostasis is in part controlled by biological generated electrical activity. By interfacing biology with electronic devices this electrical activity can be modulated to actuate cellular behaviour. There are current limitations in merging e... Read More about Electrochemically stimulating developments in bioelectronic medicine.

3D extrusion printing of high drug loading immediate release paracetamol tablets (2018)
Journal Article
Khaled, S. A., Alexander, M. R., Wildman, R. D., Wallace, M. J., Sharpe, S., Yoo, J., & Roberts, C. J. (2018). 3D extrusion printing of high drug loading immediate release paracetamol tablets. International Journal of Pharmaceutics, 538(1-2), 223-230. https://doi.org/10.1016/j.ijpharm.2018.01.024

The manufacture of immediate release high drug loading paracetamol oral tablets was achieved using an extrusion based 3D printer from a premixed water based paste formulation. The 3D printed tablets demonstrate that a very high drug (paracetamol) loa... Read More about 3D extrusion printing of high drug loading immediate release paracetamol tablets.

Identification of novel ‘inks’ for 3D printing using high throughput screening: bioresorbable photocurable polymers for controlled drug delivery (2018)
Journal Article
Louzao, I., Koch, B., Taresco, V., Ruiz Cantu, L., Irvine, D. J., Roberts, C. J., …Alexander, M. R. (in press). Identification of novel ‘inks’ for 3D printing using high throughput screening: bioresorbable photocurable polymers for controlled drug delivery. ACS Applied Materials and Interfaces, 10(8), https://doi.org/10.1021/acsami.7b15677

A robust discovery methodology is presented to identify novel biomaterials suitable for 3D printing. Currently the application of Additive Manufacturing is limited by the availability of functional inks, especially in the area of biomaterials-this me... Read More about Identification of novel ‘inks’ for 3D printing using high throughput screening: bioresorbable photocurable polymers for controlled drug delivery.

Prediction of Broad-Spectrum Pathogen Attachment to Coating Materials for Biomedical Devices (2018)
Journal Article
Dundas, A. A., Mikulskis, P., Hook, A., Dundas, A., Irvine, D., Sanni, O., …Winkler, D. A. (2018). Prediction of Broad-Spectrum Pathogen Attachment to Coating Materials for Biomedical Devices. ACS Applied Materials and Interfaces, 10(1), 139-149. https://doi.org/10.1021/acsami.7b14197

© 2017 American Chemical Society. Bacterial infections in healthcare settings are a frequent accompaniment to both routine procedures such as catheterization and surgical site interventions. Their impact is becoming even more marked as the numbers of... Read More about Prediction of Broad-Spectrum Pathogen Attachment to Coating Materials for Biomedical Devices.

Synthetic light-curable polymeric materials provide a supportive niche for dental pulp stem cells (2017)
Journal Article
Vining, K. H., Scherba, J. C., Bever, A., Alexander, M. R., Celiz, A. D., & Mooney, D. J. (2018). Synthetic light-curable polymeric materials provide a supportive niche for dental pulp stem cells. Advanced Materials, 30(4), Article 1704486. https://doi.org/10.1002/adma.201704486

Dental disease annually affects billions of patients, and while regenerative dentistry aims to heal dental tissue after injury, existing polymeric restorative materials, or fillings, do not directly participate in the healing process in a bioinstruct... Read More about Synthetic light-curable polymeric materials provide a supportive niche for dental pulp stem cells.

The 3D OrbiSIMS—label-free metabolic imaging with subcellular lateral resolution and high mass-resolving power (2017)
Journal Article
Passarelli, M. K., Pirkl, A., Moellers, R., Grinfeld, D., Kollmer, F., Havelund, R., …Gilmore, I. S. (2017). The 3D OrbiSIMS—label-free metabolic imaging with subcellular lateral resolution and high mass-resolving power. Nature Methods, 14(12), 1175-1183. https://doi.org/10.1038/nmeth.4504

© 2017 Nature America, Inc., part of Springer Nature. All rights reserved. We report the development of a 3D OrbiSIMS instrument for label-free biomedical imaging. It combines the high spatial resolution of secondary ion mass spectrometry (SIMS; unde... Read More about The 3D OrbiSIMS—label-free metabolic imaging with subcellular lateral resolution and high mass-resolving power.

Intracellular drug uptake: a comparison of single cell measurements using ToF-SIMS imaging and quantification from cell populations with LC/MS/MS (2017)
Journal Article
Newman, C. F., Havelund, R., Passarelli, M. K., Marshall, P. S., Francis, I., West, A., …Dollery, C. T. (2017). Intracellular drug uptake: a comparison of single cell measurements using ToF-SIMS imaging and quantification from cell populations with LC/MS/MS. Analytical Chemistry, 89(22), 11944-11953. https://doi.org/10.1021/acs.analchem.7b01436

ToF-SIMS is a label-free imaging method that has been shown to enable imaging of amiodarone in single rat macrophage (NR8383) cells. In this study, we show that the method extends to three other cell lines relevant to drug discovery: human embryonic... Read More about Intracellular drug uptake: a comparison of single cell measurements using ToF-SIMS imaging and quantification from cell populations with LC/MS/MS.

Water contact angle is not a good predictor of biological responses to materials (2017)
Journal Article
Alexander, M. R., & Williams, P. (in press). Water contact angle is not a good predictor of biological responses to materials. Biointerphases, 12(2), Article 02C201. https://doi.org/10.1116/1.4989843

Often the view is expressed that water contact angle (WCA) or other wettability/surface energy measurements made on a material surface can be used to predict cellular attachment to materials, e.g., bacteria attach to hydrophobic surfaces. In this art... Read More about Water contact angle is not a good predictor of biological responses to materials.

Versatile routes to functional RAFT chain transfer agents through the Passerini multicomponent reaction (2017)
Journal Article
Pearce, A. K., Travanut, A., Couturaud, B., Taresco, V., Howdle, S. M., Alexander, M. R., & Alexander, C. (2017). Versatile routes to functional RAFT chain transfer agents through the Passerini multicomponent reaction. ACS Macro Letters, 6(7), 781-785. https://doi.org/10.1021/acsmacrolett.7b00415

The widespread adoption of RAFT polymerization stems partly from the ease and utility of installing a functional chain transfer agent onto the ends of the generated polymer chains. In parallel, the Passerini multicomponent reaction offers great versa... Read More about Versatile routes to functional RAFT chain transfer agents through the Passerini multicomponent reaction.

3D printing of tablets using inkjet with UV photoinitiation (2017)
Journal Article
Clark, E. A., Alexander, M. R., Irvine, D. J., Roberts, C. J., Wallace, M. J., Sharpe, S., …Wildman, R. D. (2017). 3D printing of tablets using inkjet with UV photoinitiation. International Journal of Pharmaceutics, 529(1-2), 523-530. https://doi.org/10.1016/j.ijpharm.2017.06.085

Additive manufacturing (AM) offers significant potential benefits in the field of drug delivery and pharmaceutical/medical device manufacture. Of AM processes, 3D inkjet printing enables precise deposition of a formulation, whilst offering the potent... Read More about 3D printing of tablets using inkjet with UV photoinitiation.