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Development of samarium-doped phosphate glass microspheres for internal radiotheranostic applications (2024)
Journal Article
Arjuna, A., Milborne, B., Putra, A. R., Mulyaningsih, T. R., Setiawan, H., Islam, M. T., …Ahmed, I. (2024). Development of samarium-doped phosphate glass microspheres for internal radiotheranostic applications. International Journal of Pharmaceutics, 653, Article 123919. https://doi.org/10.1016/j.ijpharm.2024.123919

Internal radiotherapy delivers radioactive sources inside the body, near to or into malignant tumours, which may be particularly effective when malignancies are not responding to external beam radiotherapy. A pure beta emitter, 90Y, is currently used... Read More about Development of samarium-doped phosphate glass microspheres for internal radiotheranostic applications.

The Use of Microspheres for Cancer Embolization Therapy: Recent Advancements and Prospective (2024)
Journal Article
Nuzulia, N. A., Mart, T., Ahmed, I., & Sari, Y. W. (2024). The Use of Microspheres for Cancer Embolization Therapy: Recent Advancements and Prospective. ACS Biomaterials Science and Engineering, https://doi.org/10.1021/acsbiomaterials.3c00659

Embolization therapy involving biomaterials has improved the therapeutic strategy for most liver cancer treatments. Developing biomaterials as embolic agents has significantly improved patients’ survival rates. Various embolic agents are present in l... Read More about The Use of Microspheres for Cancer Embolization Therapy: Recent Advancements and Prospective.

In vitro immunomodulatory effect of solid versus porous phosphate-based glass microspheres using macrophages (2023)
Journal Article
Sheela, S., AlGhalban, F. M., Ahmed, I., & Abou Neel, E. A. (2023). In vitro immunomodulatory effect of solid versus porous phosphate-based glass microspheres using macrophages. Heliyon, 9(12), e23059. https://doi.org/10.1016/j.heliyon.2023.e23059

This study aimed to investigate the immunomodulatory effect of two different forms of phosphate-based glass microspheres (solid and porous), on human macrophages. Human THP-1 monocytes were converted to M0 macrophages after being treated with 100 ng/... Read More about In vitro immunomodulatory effect of solid versus porous phosphate-based glass microspheres using macrophages.

Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture (2023)
Journal Article
Woodliffe, J. L., Johnston, A., Fay, M., Ferrari, R., Gomes, R. L., Lester, E., …Laybourn, A. (2023). Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture. Materials Advances, 4(11), 5838-5849. https://doi.org/10.1039/D3MA00351E

Metal-organic frameworks (MOFs) have shown excellent potential for carbon dioxide capture applications due to their high sorption capacities and selectivities. However, MOFs are typically thermally insulating, and so thermal CO2 regeneration is chall... Read More about Rapid microwave synthesis of sustainable magnetic framework composites of UTSA-16(Zn) with Fe3O4 nanoparticles for efficient CO2 capture.

PDI-functionalised glass beads: efficient, metal-free heterogeneous photocatalysts suitable for flow photochemistry (2023)
Working Paper
Ali, H., Ahmed, I., Robertson, K., & Lanterna, A. PDI-functionalised glass beads: efficient, metal-free heterogeneous photocatalysts suitable for flow photochemistry

Perylene diimides (PDI) have an extraordinary ability to activate both energy and electron transfer process upon light excitation, however, their extremely low solubility has hindered their wide use as photocatalysts. Here, we show a series of suppor... Read More about PDI-functionalised glass beads: efficient, metal-free heterogeneous photocatalysts suitable for flow photochemistry.

Rapid synthesis of magnetic microspheres and the development of new macro-micro hierarchically porous magnetic framework composites (2023)
Journal Article
Woodliffe, J. L., Molinar-Díaz, J., Islam, M. T., Stevens, L. A., Wadge, M. D., Rance, G. A., …Laybourn, A. (2023). Rapid synthesis of magnetic microspheres and the development of new macro-micro hierarchically porous magnetic framework composites. Journal of Materials Chemistry A, 11(27), 14705-14719. https://doi.org/10.1039/D3TA01927F

Magnetic framework composites (MFCs) are a highly interesting group of materials that contain both metal–organic frameworks (MOFs) and magnetic materials. Combining the unique benefits of MOFs (tuneable natures, high surface areas) with the advantage... Read More about Rapid synthesis of magnetic microspheres and the development of new macro-micro hierarchically porous magnetic framework composites.

Process parameter optimisation for manufacturing porous bioactive silicate glass microspheres via flame spheroidisation: The goldilocks effect (2023)
Journal Article
Islam, M. T., Parsons, A. J., Nuzulia, N. A., Sari, Y. W., Ren, H., Booth, J., & Ahmed, I. (2023). Process parameter optimisation for manufacturing porous bioactive silicate glass microspheres via flame spheroidisation: The goldilocks effect. Journal of Non-Crystalline Solids, 614, Article 122393. https://doi.org/10.1016/j.jnoncrysol.2023.122393

This study investigated the influence of flame spheroidisation process parameters for successfully manufacturing solid (dense) and highly porous microspheres from Food and Drug Administration approved bioactive 45S5 glass and 45S5 with addition of vi... Read More about Process parameter optimisation for manufacturing porous bioactive silicate glass microspheres via flame spheroidisation: The goldilocks effect.

Tailoring absorptivity of highly reflective Ag powders by pulsed-direct current magnetron sputtering for additive manufacturing processes (2023)
Journal Article
Wadge, M. D., Lowther, M., Cooper, T. P., Reynolds, W. J., Speidel, A., Carter, L. N., …Cox, S. C. (2023). Tailoring absorptivity of highly reflective Ag powders by pulsed-direct current magnetron sputtering for additive manufacturing processes. Journal of Materials Processing Technology, 317, Article 117985. https://doi.org/10.1016/j.jmatprotec.2023.117985

Processing of highly reflective and high thermally conductive materials (Cu, Ag, etc.) by laser powder bed fusion (LPBF) is of increasing interest to broaden the range of materials that can be additively manufactured. However, these alloys are challe... Read More about Tailoring absorptivity of highly reflective Ag powders by pulsed-direct current magnetron sputtering for additive manufacturing processes.

Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres (2023)
Journal Article
Molinar-Díaz, J., Woodliffe, J. L., Steer, E., Morley, N. A., Brown, P. D., & Ahmed, I. (2023). Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres. Molecules, 28(6), Article 2523. https://doi.org/10.3390/molecules28062523

The rapid, single-stage, flame-spheroidisation process, as applied to varying Fe3O4:CaCO3 powder combinations, provides for the rapid production of a mixture of dense and porous ferromagnetic microspheres with homogeneous composition, high levels of... Read More about Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres.

Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres (2023)
Journal Article
Molinar-Díaz, J., Woodliffe, J. L., Steer, E., Morley, N. A., Brown, P. D., & Ahmed, I. (in press). Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres. Molecules, 28(6), Article 2523. https://doi.org/10.3390/+molecules28062523

The rapid, single-stage, flame-spheroidisation process, as applied to varying Fe3O4:CaCO3 powder combinations, provides for the rapid production of a mixture of dense and porous ferro-magnetic microspheres with homogeneous composition, high levels of... Read More about Optimisation of the Flame Spheroidisation Process for the Rapid Manufacture of Fe3O4-Based Porous and Dense Microspheres.

Production of Nano Hydroxyapatite and Mg-Whitlockite from Biowaste-Derived products via Continuous Flow Hydrothermal Synthesis: A Step towards Circular Economy (2023)
Journal Article
Nigar, F., Johnston, A. L., Smith, J., Oakley, W., Islam, M. T., Felfel, R., …Ahmed, I. (2023). Production of Nano Hydroxyapatite and Mg-Whitlockite from Biowaste-Derived products via Continuous Flow Hydrothermal Synthesis: A Step towards Circular Economy. Materials, 16(6), Article 2138. https://doi.org/10.3390/ma16062138

Biowastes from agriculture, sewage, household wastes, and industries comprise promising resources to produce biomaterials while reducing adverse environmental effects. This study focused on utilising waste-derived materials (i.e., eggshells as a calc... Read More about Production of Nano Hydroxyapatite and Mg-Whitlockite from Biowaste-Derived products via Continuous Flow Hydrothermal Synthesis: A Step towards Circular Economy.

Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications (2023)
Journal Article
Molinar‐Díaz, J., Woodliffe, J. L., Milborne, B., Murrell, L., Islam, M. T., Steer, E., …Ahmed, I. (2023). Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications. Advanced Materials Interfaces, 10(11), Article 2202089. https://doi.org/10.1002/admi.202202089

Highly porous, ferromagnetic glass-ceramic P40-Fe3O4 microspheres (125–212 µm) with enhanced cytocompatibility have been manufactured for the first time via a facile, rapid, single-stage flame spheroidization process. Dispersions of Fe3O4 and Ca2Fe2O... Read More about Ferromagnetic Cytocompatible Glass-Ceramic Porous Microspheres for Magnetic Hyperthermia Applications.

Developing alkaline titanate surfaces for medical applications (2023)
Journal Article
Wadge, M. D., McGuire, J., Thomas, K. G., Stuart, B. W., Felfel, R. M., Ahmed, I., & Grant, D. M. (in press). Developing alkaline titanate surfaces for medical applications. International Materials Reviews, Article 2153217. https://doi.org/10.1080/09506608.2022.2153217

Improving the surface of medical implants by plasma spraying of a hydroxyapatite coating can be of critical importance to their longevity and the patient’s convalescence. However, residual stresses, cracking, undesired crystallisation and delaminatio... Read More about Developing alkaline titanate surfaces for medical applications.

Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response (2022)
Journal Article
Wadge, M. D., Bird, M. A., Sankowski, A., Constantin, H., Fay, M. W., Cooper, T. P., …Grant, D. M. (2023). Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response. Advanced Materials Interfaces, 10(5), Article 2201523. https://doi.org/10.1002/admi.202201523

This study describes the chemical conversion and heat treatment of Ti6Al4V microspheres (Ti6_MS), and the resulting effects on their electrocatalytic properties. The wet-chemical conversion (5.0m NaOH, 60°C, 24h; Sample label: Ti6_TC) converts the to... Read More about Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response.

Developing Porous Ortho- and Pyrophosphate-Containing Glass Microspheres; Structural and Cytocompatibility Characterisation (2022)
Journal Article
Milborne, B., Murrell, L., Cardillo-Zallo, I., Titman, J., Briggs, L., Scotchford, C., …Ahmed, I. (2022). Developing Porous Ortho- and Pyrophosphate-Containing Glass Microspheres; Structural and Cytocompatibility Characterisation. Bioengineering, 9(11), Article 611. https://doi.org/10.3390/bioengineering9110611

Phosphate-based glasses (PBGs) are promising materials for bone repair and regeneration as they can be formulated to be compositionally similar to the inorganic components of bone. Alterations to the PBG formulation can be used to tailor their degrad... Read More about Developing Porous Ortho- and Pyrophosphate-Containing Glass Microspheres; Structural and Cytocompatibility Characterisation.

L-DOPA coating improved phosphate glass fibre strength and fibre/matrix interface (2022)
Journal Article
Tan, C., Rudd, C. D., Parsons, A. J., Sharmin, N., & Ahmed, I. (2022). L-DOPA coating improved phosphate glass fibre strength and fibre/matrix interface. Journal of the Mechanical Behavior of Biomedical Materials, 136, Article 105480. https://doi.org/10.1016/j.jmbbm.2022.105480

The levodopa (L-DOPA) has been reported as a promising adhesive for various materials. In this study, we utilized L-DOPA as an interfacial agent for phosphate glass fibre/polycaprolactone (PGF/PCL) composites, with the aim to enhance the interfacial... Read More about L-DOPA coating improved phosphate glass fibre strength and fibre/matrix interface.

Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal (2022)
Journal Article
Samad, S. A., Arafat, A., Lester, E., & Ahmed, I. (2022). Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal. Materials, 15(17), Article 5809. https://doi.org/10.3390/ma15175809

Each year about 7.6 million tons of waste glasses are landfilled without recycling, reclaiming or upcycling. Herein we have developed a solvent free upcycling method for recycled glass waste (RG) by remanufacturing it into porous recycled glass micro... Read More about Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal.

Tailored Additives for Incorporation of Antibacterial Functionality Into Laser Sintered Parts (2022)
Journal Article
Wingham, J. R., Ahmed, I., Islam, M. T., Shepherd, J., & Majewski, C. (2022). Tailored Additives for Incorporation of Antibacterial Functionality Into Laser Sintered Parts. Frontiers in Biomaterials Science, 1, Article 929006. https://doi.org/10.3389/fbiom.2022.929006

Infectious disease is a major cause of death worldwide, and novel methods capable of controlling the spread of disease are in high demand. This research presents a method of producing antimicrobial microcomposites by exploiting the powder-based natur... Read More about Tailored Additives for Incorporation of Antibacterial Functionality Into Laser Sintered Parts.

Developing Highly Porous Glass Microspheres via a Single-Stage Flame Spheroidisation Process (2022)
Journal Article
Nuzulia, N. A., Islam, T., Saputra, A., Sudiro, T., Timuda, G. E., Mart, T., …Ahmed, I. (2022). Developing Highly Porous Glass Microspheres via a Single-Stage Flame Spheroidisation Process. Journal of Physics: Conference Series, 2243(1), Article 012005. https://doi.org/10.1088/1742-6596/2243/1/012005

Glass microspheres are gaining attention in bone tissue engineering due to their ability to convert into hydroxyapatite-like materials, resembling the inorganic mineral of natural bone. The morphology of glass microspheres as starting material has be... Read More about Developing Highly Porous Glass Microspheres via a Single-Stage Flame Spheroidisation Process.

Recent Advances in the Development and Applications of Phosphate and Borate Glass Microspheres (2022)
Book Chapter
Islam, M. T., & Ahmed, I. (2022). Recent Advances in the Development and Applications of Phosphate and Borate Glass Microspheres. In A. Obata, D. S. Brauer, & T. Kasuga (Eds.), Phosphate and Borate Bioactive Glasses (227-247). Royal Society of Chemistry. https://doi.org/10.1039/9781839164750-00227

An overview of recent findings and advancements concerning development of phosphate and borate glass microspheres, their manufacturing processes and potential use in biomedical applications are presented in this chapter. Phosphate and Borate glasses... Read More about Recent Advances in the Development and Applications of Phosphate and Borate Glass Microspheres.