All Outputs (97)

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., O'Shea, J. N., Khlobystov, A. N., Walsh, D. A., Johnson, L. R., Felfel, R. M., Ahmed, I., & 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.

Characterization of potential nanoporous sodium titanate film formation on Ti6Al4V and TiO2 microspherical substrates via wet-chemical alkaline conversion (2022)
Journal Article
Wadge, M. D., Carrington, M. J., Constantin, H., Orange, K., Greaves, J., Islam, M. T., …Grant, D. M. (2022). Characterization of potential nanoporous sodium titanate film formation on Ti6Al4V and TiO2 microspherical substrates via wet-chemical alkaline conversion. Materials Characterization, 185, Article 111760. https://doi.org/10.1016/j.matchar.2022.111760

The authors present novel insights into the formation of nanoporous, wet-chemically produced sodium titanate films onto microspherical substrates of varying composition. Microspheres of Ti6Al4V (atomised; ca. 20–50 μm), which were utilised due to the... Read More about Characterization of potential nanoporous sodium titanate film formation on Ti6Al4V and TiO2 microspherical substrates via wet-chemical alkaline conversion.

Evolution of silicate bioglass particles as porous microspheres with a view towards orthobiologics (2022)
Journal Article
Islam, M. T., Nuzulia, N. A., Macri-Pellizzeri, L., Nigar, F., Sari, Y. W., & Ahmed, I. (2022). Evolution of silicate bioglass particles as porous microspheres with a view towards orthobiologics. Journal of Biomaterials Applications, 36(8), 1427-1443. https://doi.org/10.1177/08853282211059294

Although FDA approved and clinically utilised, research on 45S5 Bioglass® and S53P4 including other bioactive glasses continues in order to advance their applicability for a range of alternate applications. For example, rendering these particles poro... Read More about Evolution of silicate bioglass particles as porous microspheres with a view towards orthobiologics.

Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications (2022)
Journal Article
Tas, M., Musa, U. G., Ahmed, I., Xu, F., Smartt, C., & Hou, X. (2022). Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications. Polymer, 240, Article 124499. https://doi.org/10.1016/j.polymer.2021.124499

Outdoor electronic equipment such as signal stations, radar units, and cellular base stations would benefit from electromagnetic interference (EMI) shielding systems, but ice accretion on the surface of these facilities often causes critical challeng... Read More about Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications.

Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating (2021)
Journal Article
Leng, K., Rincon Romero, A., Venturi, F., Ahmed, I., & Hussain, T. (2022). Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating. Journal of the European Ceramic Society, 42(4), 1594-1607. https://doi.org/10.1016/j.jeurceramsoc.2021.11.050

Gadolinium zirconate (GZ) is an attractive material for thermal barrier coatings (TBCs). However, a single layer GZ coating has poor thermal cycling life compared to Yttria Stabilized Zirconia (YSZ). In this study, Solution Precursor High Velocity Ox... Read More about Solution precursor thermal spraying of gadolinium zirconate for thermal barrier coating.

Long-Term Culture of Stem Cells on Phosphate-Based Glass Microspheres: Synergistic Role of Chemical Formulation and 3D Architecture (2021)
Journal Article
Gupta, D., Hossain, K. M. Z., Roe, M., Smith, E. F., Ahmed, I., Sottile, V., & Grant, D. M. (2021). Long-Term Culture of Stem Cells on Phosphate-Based Glass Microspheres: Synergistic Role of Chemical Formulation and 3D Architecture. ACS Applied Bio Materials, 4(8), 5987-6004. https://doi.org/10.1021/acsabm.1c00120

Phosphate-based glasses (PBGs) are biomaterials that degrade under physiological conditions and can be modified to release various ions depending on end applications. This study utilized slow-degrading (P45:45P2O5-16CaO-24MgO-11Na2O10 4Fe2O3, mol %)... Read More about Long-Term Culture of Stem Cells on Phosphate-Based Glass Microspheres: Synergistic Role of Chemical Formulation and 3D Architecture.

Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process (2021)
Journal Article
Bano, S., Rincon Romero, A., Islam, M. T., Grant, D. M., Ahmed, I., & Hussain, T. (2021). Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process. Journal of Thermal Spray Technology, 30(7), 1862-1874. https://doi.org/10.1007/s11666-021-01233-8

Phosphate based glasses (PBGs) are promising materials for biomedical applications due to their biocompatible and fully resorbable characteristics in aqueous environments. These glasses can be coated on to metal substrate via the technique of suspens... Read More about Development and Characterization of Phosphate-Based Glass Coatings via Suspension High-Velocity Oxy-Fuel (SHVOF) Thermal Spray Process.

Adsorption studies and effect of heat treatment on porous glass microspheres (2021)
Journal Article
Samad, S. A., Arafat, A., Ferrari, R., Gomes, R. L., Lester, E., & Ahmed, I. (2022). Adsorption studies and effect of heat treatment on porous glass microspheres. International Journal of Applied Glass Science, 13(1), 63-81. https://doi.org/10.1111/ijag.16352

This paper investigates the effect of heat treatment on porous glass microspheres produced via a novel flame spheroidization process, followed by exploring their suitability for dye removal from water. The effect of simple use of smaller porogen (≤5 ... Read More about Adsorption studies and effect of heat treatment on porous glass microspheres.

Preparation and characterization of composites using blends of divinylbenzene-based hyperbranched and linear functionalized polymers (2021)
Journal Article
Kabir, S. F., Adlington, K., Parsons, A. J., Irvine, D. J., & Ahmed, I. (2021). Preparation and characterization of composites using blends of divinylbenzene-based hyperbranched and linear functionalized polymers. Polymers for Advanced Technologies, 32(8), 3333-3342. https://doi.org/10.1002/pat.5346

In this study, hyperbranched polymers were explored as matrix modifiers to create E-glass fiber (GF) reinforced polymer composites with enhanced mechanical properties. Hyperbranched polymers have lower viscosities than their linear equivalents, poten... Read More about Preparation and characterization of composites using blends of divinylbenzene-based hyperbranched and linear functionalized polymers.

Antibacterial Effect of Titanium Dioxide-Doped Phosphate Glass Microspheres Filled Total-Etch Dental Adhesive on S. mutans Biofilm (2021)
Journal Article
Neel, E. A. A., Hossain, K. M. Z., Abuelenain, D. A., Abuhaimed, T., Ahmed, I., Valappil, S. P., & Knowles, J. C. (2021). Antibacterial Effect of Titanium Dioxide-Doped Phosphate Glass Microspheres Filled Total-Etch Dental Adhesive on S. mutans Biofilm. International Journal of Adhesion and Adhesives, 108, Article 102886. https://doi.org/10.1016/j.ijadhadh.2021.102886

Purpose
to improve the antibacterial action of a two-step total-etch dental adhesive by using titanium dioxide-doped phosphate glass microspheres (GMs) without affecting its penetration ability.

Materials and Methods
Five and 10 wt% of APTES sil... Read More about Antibacterial Effect of Titanium Dioxide-Doped Phosphate Glass Microspheres Filled Total-Etch Dental Adhesive on S. mutans Biofilm.

Tailoring Pyro- and Orthophosphate Species to Enhance Stem Cell Adhesion to Phosphate Glasses (2021)
Journal Article
De Melo, N., Murrell, L., Islam, M. T., Titman, J. J., Macri-Pellizzeri, L., Ahmed, I., & Sottile, V. (2021). Tailoring Pyro- and Orthophosphate Species to Enhance Stem Cell Adhesion to Phosphate Glasses. International Journal of Molecular Sciences, 22(2), Article 837. https://doi.org/10.3390/ijms22020837

Rapid conversion of highly porous borate glass microspheres into hydroxyapatite (2021)
Journal Article
Islam, M. T., Macri-Pellizzeri, L., Sottile, V., & Ahmed, I. (2021). Rapid conversion of highly porous borate glass microspheres into hydroxyapatite. Biomaterials Science, 9(5), 1826-1844. https://doi.org/10.1039/d0bm01776k

This paper reports on the rapid development of porous hydroxyapatite (HA) microspheres with large external pores and fully interconnected porosity. These porous microspheres were produced by converting borates glasses (namely 45B5, B53P4 and 13-93B)... Read More about Rapid conversion of highly porous borate glass microspheres into hydroxyapatite.

In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray (2020)
Journal Article
Bano, S., Romero, A. R., Grant, D., Nommeots-Nomm, A., Scotchford, C., Ahmed, I., & Hussain, T. (2021). In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray. Surface and Coatings Technology, 407, Article 126764. https://doi.org/10.1016/j.surfcoat.2020.126764

ICIE16 and 13-93 bioactive glasses have been proposed as alternative chemically stable compositions in physiological fluid keeping bioactivity comparable to Bioglass®. ICIE16 and 13-93 bioactive glasses coatings were produced via an emerging suspensi... Read More about In-vitro cell interaction and apatite forming ability in simulated body fluid of ICIE16 and 13-93 bioactive glass coatings deposited by an emerging suspension high velocity oxy fuel (SHVOF) thermal spray.

Yttrium doped phosphate-based glasses: structural and degradation analyses (2020)
Journal Article
Arafat, A., Samad, S. A., Titman, J. J., Lewis, A. L., Barney, E. R., & Ahmed, I. (2020). Yttrium doped phosphate-based glasses: structural and degradation analyses. Biomedical Glasses, 6(1), 34-49. https://doi.org/10.1515/bglass-2020-0004

This study investigates the role of yttrium in phosphate-based glasses in the system 45(P2O5)-25(CaO)-(30-x)(Na2O)-x(Y2O3) (0≤x≤5) prepared via melt quenching and focuses on their structural characterisation and degradation properties. The structural... Read More about Yttrium doped phosphate-based glasses: structural and degradation analyses.