Outputs (45)

Study on molecular orientation and stratification in RNA-lipid nanoparticles by cryogenic orbitrap secondary ion mass spectrometry (2025)
Journal Article
Kotowska, A. M., Fay, M., Watts, J. A., Gilmore, I. S., Scurr, D. J., Howe, A., Capka, V., Perez, C., Doud, D., Patel, S., Umbarger, M., Langer, R., & Alexander, M. R. (2025). Study on molecular orientation and stratification in RNA-lipid nanoparticles by cryogenic orbitrap secondary ion mass spectrometry. Communications Chemistry, 8, Article 160. https://doi.org/10.1038/s42004-025-01526-x

Lipid nanoparticle RNA (LNP-RNA) formulations are used for the delivery of vaccines and other therapies. RNA molecules are encapsulated within their interior through electrostatic interactions with positively charged lipids. The identity of the lipid... Read More about Study on molecular orientation and stratification in RNA-lipid nanoparticles by cryogenic orbitrap secondary ion mass spectrometry.

Modulation of the biological response to surfaces through the controlled deposition of 3D polymeric surfactants (2025)
Journal Article
Cuzzucoli Crucitti, V., Hajiali, H., Dundas, A. A., Jayawarna, V., Tomolillo, D., Francolini, I., Vuotto, C., Salmeron-Sanchez, M., Dalby, M. J., Alexander, M. R., Wildman, R. D., Rose, F. R. A. J., & Irvine, D. J. (2025). Modulation of the biological response to surfaces through the controlled deposition of 3D polymeric surfactants. Journal of Materials Chemistry B, 13(15), 4657-4670. https://doi.org/10.1039/d4tb01941e

Biomaterials play a crucial role in modern medicine through their use as medical implants and devices. However, they can support biofilm formation and infection, and lack integration with the surrounding human tissue at the implant site. This work re... Read More about Modulation of the biological response to surfaces through the controlled deposition of 3D polymeric surfactants.

Molecular orientation and stratification revealed in RNA-lipid nanoparticles using Cryogenic Orbitrap Secondary Ion Mass Spectrometry (Cryo-OrbiSIMS) depth profiling (2025)
Preprint / Working Paper
Kotowska, A., Fay, M., Watts, J., Gilmore, I., Scurr, D., Howe, A., Capka, V., Perez, C., Doud, D., Patel, S., Umbarger, M., Langer, R., & Alexander, M. (2025). Molecular orientation and stratification revealed in RNA-lipid nanoparticles using Cryogenic Orbitrap Secondary Ion Mass Spectrometry (Cryo-OrbiSIMS) depth profiling

Lipid nanoparticle RNA (LNP-RNA) formulations are used for the delivery of vaccines and other therapies. RNA molecules are encapsulated within their interior through electrostatic interactions with positively charged lipids. The identity of the lipid... Read More about Molecular orientation and stratification revealed in RNA-lipid nanoparticles using Cryogenic Orbitrap Secondary Ion Mass Spectrometry (Cryo-OrbiSIMS) depth profiling.

Development of C. albican Anti-attachment Inkjet 3D Printing Ink, via High Throughput Screening (2025)
Presentation / Conference Contribution
Yong, L. X., Zhou, Z., Vallières, C., He, Y., Cuzzucoli Crucitti, V., Alexander, M. R., Avery, S., Wildman, R., & Irvine, D. (2024, August). Development of C. albican Anti-attachment Inkjet 3D Printing Ink, via High Throughput Screening. Presented at International Conference on Computational & Experimental Engineering and Sciences, Singapore, Singapore

The fungal pathogen Candida albicans (C. albicans) is particularly problematic for immunocompromised patients and those with medical implants. Introducing Candida-resistant medical devices could potentially reduce mortality rates from such infections... Read More about Development of C. albican Anti-attachment Inkjet 3D Printing Ink, via High Throughput Screening.

Fungal Attachment-Resistant Polymers for the Additive Manufacture of Medical Devices (2024)
Journal Article
Yong, L. X., Sefton, J., Vallières, C., Rance, G. A., Hill, J., Cuzzucoli Crucitti, V., Dundas, A. A., Rose, F. R., Alexander, M. R., Wildman, R., He, Y., Avery, S. V., & Irvine, D. J. (2024). Fungal Attachment-Resistant Polymers for the Additive Manufacture of Medical Devices. ACS Applied Materials and Interfaces, 16(40), 54508–54519. https://doi.org/10.1021/acsami.4c04833

This study reports the development of the first copolymer material that (i) is resistant to fungal attachment and hence biofilm formation, (ii) operates via a nonkilling mechanism, i.e., avoids the use of antifungal actives and the emergence of funga... Read More about Fungal Attachment-Resistant Polymers for the Additive Manufacture of Medical Devices.

Computer Vision for Substrate Detection in High-Throughput Biomaterial Screens Using Bright-Field Microscopy (2024)
Journal Article
Owen, R., Nasir, A., H. Amer, M., Nie, C., Xue, X., Burroughs, L., Denning, C., D. Wildman, R., A. Khan, F., R. Alexander, M., & R. A. J. Rose, F. (2025). Computer Vision for Substrate Detection in High-Throughput Biomaterial Screens Using Bright-Field Microscopy. Advanced Intelligent Systems, 7(5), Article 2400573. https://doi.org/10.1002/aisy.202400573

High-throughput screening (HTS) can be used when ab initio information is unavailable for rational design of new materials, generating data on properties such as chemistry and topography that control cell behavior. Biomaterial screens are typically f... Read More about Computer Vision for Substrate Detection in High-Throughput Biomaterial Screens Using Bright-Field Microscopy.

Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study (2024)
Journal Article
Kalenderski, K., Dubern, J.-F., Lewis-Lloyd, C., Jeffery, N., Heeb, S., Irvine, D. J., Sloan, T. J., Birch, B., Andrich, D., Humes, D., Alexander, M. R., & Williams, P. (2024). Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study. Journal of Urology Open PLus, 2(1), Article e00005. https://doi.org/10.1097/JU9.0000000000000097

Purpose: Biofilm formation and biomineralization on urinary catheters may cause severe complications including infection and obstruction. Here, we describe an in vitro evaluation and prospective pilot clinical study of a silicone catheter coated with... Read More about Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study.

A potential alternative to fungicides using actives-free (meth)acrylate polymers for protection of wheat crops from fungal attachment and infection (2023)
Journal Article
Crawford, L. A., Cuzzucoli Crucitti, V., Stimpson, A., Morgan, C., Blake, J., Wildman, R. D., Hook, A. L., Alexander, M. R., Irvine, D. J., & Avery, S. V. (2023). A potential alternative to fungicides using actives-free (meth)acrylate polymers for protection of wheat crops from fungal attachment and infection. Green Chemistry, 25(21), 8558-8569. https://doi.org/10.1039/d3gc01911j

Fungicidal compounds are actives widely used for crop protection from fungal infection, but they can also kill beneficial organisms, enter the food chain and promote resistant pathogen strains from overuse. Here we report the first field crop trial o... Read More about A potential alternative to fungicides using actives-free (meth)acrylate polymers for protection of wheat crops from fungal attachment and infection.

Discovery of a polymer resistant to bacterial biofilm, swarming, and encrustation (2023)
Journal Article
Dubern, J. F., Hook, A. L., Carabelli, A. M., Chang, C. Y., Lewis-Lloyd, C. A., Luckett, J. C., Burroughs, L., Dundas, A. A., Humes, D. J., Irvine, D. J., Alexander, M. R., & Williams, P. (2023). Discovery of a polymer resistant to bacterial biofilm, swarming, and encrustation. Science Advances, 9(4), Article eadd7474. https://doi.org/10.1126/sciadv.add7474

Innovative approaches to prevent catheter-associated urinary tract infections (CAUTIs) are urgently required. Here, we describe the discovery of an acrylate copolymer capable of resisting single- and multispecies bacterial biofilm formation, swarming... Read More about Discovery of a polymer resistant to bacterial biofilm, swarming, and encrustation.

Innate immune cell instruction using micron-scale 3D objects of varied architecture and polymer chemistry: The ChemoArchiChip (2023)
Journal Article
Vassey, M., Ma, L., Kämmerling, L., Mbadugha, C., Trindade, G. F., Figueredo, G. P., Pappalardo, F., Hutchinson, J., Markus, R., Rajani, S., Hu, Q., Winkler, D. A., Irvine, D. J., Hague, R., Ghaemmaghami, A. M., Wildman, R., & Alexander, M. R. (2023). Innate immune cell instruction using micron-scale 3D objects of varied architecture and polymer chemistry: The ChemoArchiChip. Matter, 6(3), 887-906. https://doi.org/10.1016/j.matt.2023.01.002

To design effective immunomodulatory implants, innate immune cell interactions at the surface of biomaterials need to be controlled and understood. The architectural design freedom of two-photon polymerization is used to produce arrays of surface-mou... Read More about Innate immune cell instruction using micron-scale 3D objects of varied architecture and polymer chemistry: The ChemoArchiChip.