Prof. Ruben Gatt

Prof. Ruben Gatt

Prof. Ruben Gatt

 B.Sc.(Hons)(Melit.),M.Sc.(Melit.),Ph.D.(Melit.)

Associate Professor

Room 104A
Chemistry & Pharmacology Building
University of Malta
Msida
  +356 2340 3883
__Biography
  • Auxetic Materials
  • Negative Thermal Expansion Materials
  • Negative Compressibility
  • Mechanical Metamaterials
  • Biomaterials science

DUDEK, K.K., GATT, R., DUDEK, M.R. and GRIMA, J.N., 2021. Controllable Hierarchical Mechanical Metamaterials Guided by the Hinge Design. Materials, 14(4), pp. 758.

GAMBIN, D., DUDEK, K.K., DUDEK, M.R., GRIMA, J.N. and GATT, R., 2021. The mechanical properties of ice X with particular emphasis on its auxetic potential. Journal of Physics and Chemistry of Solids, 150, pp. 109717.

ATTARD, D., CAUCHI, R., GATT, R., GRIMA-CORNISH, J. and GRIMA, J.N., 2020. Smart Cellular Systems with Pressure Dependent Poisson’s Ratios. Computational Methods in Science and Technology, 26.

ATTARD, D., FARRUGIA, P.S., GATT, R. and GRIMA, J.N., 2020. Starchirals–A novel class of auxetic hierarchal structures. International Journal of Mechanical Sciences, 179, pp. 105631.

DARMANIN, M., KOZAK, D., DE OLIVEIRA MALLIA, J., BLUNDELL, R., GATT, R. and VALDRAMIDIS, V.P., 2020. Generation of plasma functionalized water: Antimicrobial assessment and impact on seed germination. Food Control, 113, pp. 107168.

DUDEK, K.K., ATTARD, D., GATT, R., GRIMA-CORNISH, J. and GRIMA, J.N., 2020. The multidirectional auxeticity and negative linear compressibility of a 3D mechanical metamaterial. Materials, 13(9), pp. 2193.

DUDEK, K.K., GATT, R. and GRIMA, J.N., 2020. 3D composite metamaterial with magnetic inclusions exhibiting negative stiffness and auxetic behaviour. Materials & Design, 187, pp. 108403.

DUDEK, K.K., GATT, R., WOJCIECHOWSKI, K.W. and GRIMA, J.N., 2020. Self-induced global rotation of chiral and other mechanical metamaterials. International Journal of Solids and Structures, 191, pp. 212-219.

FARRUGIA, P., GATT, R., DE VRIEZE, S., MELLOS, C. and GRIMA, J.N., 2020. Edge Effects of a Hexagonal Honeycomb on the Poisson's Ratio and Young's Modulus. physica status solidi (b), 257(10), pp. 1900511.

FARRUGIA, P., GATT, R. and GRIMA, J.N., 2020. The Push Drill Mechanism as a Novel Method to Create 3D Mechanical Metamaterial Structures. physica status solidi (RRL)–Rapid Research Letters, 14(7), pp. 2000125.

FARRUGIA, P., GATT, R., GRIMA-CORNISH, J. and GRIMA, J.N., 2020. Tuning the Mechanical Properties of the Anti‐Tetrachiral System Using Nonuniform Ligament Thickness. physica status solidi (b), 257(10), pp. 1900507.

GRIMA-CORNISH, J., CAUCHI, R., ATTARD, D., GATT, R. and GRIMA, J.N., 2020. Smart Honeycomb “Mechanical Metamaterials” with Tunable Poisson's Ratios. physica status solidi (b), 257(10), pp. 1900707.

MIZZI, L., ATTARD, D., EVANS, K.E., GATT, R. and GRIMA, J.N., 2020. Auxetic mechanical metamaterials with diamond and elliptically shaped perforations. Acta Mechanica, , pp. 1-13.

MIZZI, L., ATTARD, D., GATT, R., DUDEK, K.K., ELLUL, B. and GRIMA, J.N., 2020. Implementation of periodic boundary conditions for loading of mechanical metamaterials and other complex geometric microstructures using finite element analysis. Engineering with Computers, , pp. 1-15.

MIZZI, L., CHATZITZIKA, C., GATT, R. and VALDRAMIDIS, V., 2020. HPLC analysis of phenolic compounds and flavonoids with overlapping peaks. Food Technology and Biotechnology, 58(1), pp. 12.

MIZZI, L., MANISCALCO, D., GASPARI, S., CHATZITZIKA, C., GATT, R. and VALDRAMIDIS, V.P., 2020. Assessing the individual microbial inhibitory capacity of different sugars against pathogens commonly found in food systems. Letters in applied microbiology, 71(3), pp. 251-258.

DEGABRIELE, E.P., ATTARD, D., GRIMA‐CORNISH, J.,N., CARUANA‐GAUCI, R., GATT, R., EVANS, K.E. and GRIMA, J.N., 2019. On the Compressibility Properties of the Wine‐Rack‐Like Carbon Allotropes and Related Poly (phenylacetylene) Systems. physica status solidi (b), 256(1), pp. 1800572.

DUDEK, K.K., WOLAK, W., GATT, R. and GRIMA, J.N., 2019. Impact resistance of composite magnetic metamaterials. Scientific reports, 9(1), pp. 1-9.

FARRUGIA, P., GATT, R. and GRIMA, J.N., 2019. A novel three‐dimensional anti‐tetrachiral honeycomb. physica status solidi (b), 256(1), pp. 1800473.

FARRUGIA, P., GATT, R., ZAMMIT LONARDELLI, E., GRIMA, J.N. and EVANS, K.E., 2019. Different deformation mechanisms leading to auxetic behavior exhibited by missing rib square grid structures. physica status solidi (b), 256(1), pp. 1800186.

MIZZI, L., GRIMA, J.N., GATT, R. and ATTARD, D., 2019. Analysis of the Deformation Behavior and Mechanical Properties of Slit‐Perforated Auxetic Metamaterials. physica status solidi (b), 256(1), pp. 1800153.

SARDELLA, D., GATT, R. and VALDRAMIDIS, V.P., 2019. Metal nanoparticles for controlling fungal proliferation: quantitative analysis and applications. Current Opinion in Food Science, 30, pp. 49-59.

VELLA WOOD, M., CASHA, A., GATT, A., FORMOSA, C., CHOCKALINGAM, N., GRIMA, J.N. and GATT, R., 2019. 3D Printed clamps to study the mechanical properties of tendons at low strains. physica status solidi (b), 256(1), pp. 1800159.

CASHA, A.R., CARUANA-GAUCI, R., MANCHÉ, A., GAUCI, M. and GATT, R., 2018. Impact of the Biomechan-ical “Pleural Stress” Pressure Vessel Hypothesis on the Pathogenesis of Tuberculosis: Predictors of TB Reactivation and its Application to TB Screening. J Infect Dis Epidemiol, 4, pp. 052.

CASHA, A.R., BERTOLACCINI, L., CAMILLERI, L., MANCHE, A., GAUCI, M., MELIKYAN, G., GATT, R., DUDEK, K., SOLLI, P. and GRIMA, J.N., 2018. Pathophysiological mechanism of post-lobectomy air leaks. Journal of thoracic disease, 10(6), pp. 3689.

CASHA, A.R., CAMILLERI, L., GAUCI, M., GATT, R., SLADDEN, D., CHETCUTI, S. and GRIMA, J.N., 2018. A mathematical model for pressure-based organs behaving as biological pressure vessels. Journal of theoretical biology, 450, pp. 37-42.

DUDEK, K.K., GATT, R., DUDEK, M.R. and GRIMA, J.N., 2018. Negative and positive stiffness in auxetic magneto-mechanical metamaterials. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 474(2215), pp. 20180003.

DUDEK, K.K., WOJCIECHOWSKI, K.W., DUDEK, M.R., GATT, R., MIZZI, L. and GRIMA, J.N., 2018. Potential of mechanical metamaterials to induce their own global rotational motion. Smart Materials and Structures, 27(5), pp. 055007.

DUNCAN, O., ALLEN, T., FOSTER, L., GATT, R., GRIMA, J.N. and ALDERSON, A., 2018. Controlling density and modulus in auxetic foam fabrications—implications for impact and indentation testing.

GRIMA, J.N., GRECH, M.C., GRIMA‐CORNISH, J.,N., GATT, R. and ATTARD, D., 2018. Giant auxetic behaviour in engineered graphene. Annalen der Physik, 530(6), pp. 1700330.

MIZZI, L., ATTARD, D., GATT, R., FARRUGIA, P. and GRIMA, J.N., 2018. An analytical and finite element study on the mechanical properties of irregular hexachiral honeycombs. Smart Materials and Structures, 27(10), pp. 105016.

MIZZI, L., MAHDI, E.M., TITOV, K., GATT, R., ATTARD, D., EVANS, K.E., GRIMA, J.N. and TAN, J., 2018. Mechanical metamaterials with star-shaped pores exhibiting negative and zero Poisson's ratio. Materials & Design, 146, pp. 28-37.

SARDELLA, D., GATT, R. and VALDRAMIDIS, V.P., 2018. Assessing the efficacy of zinc oxide nanoparticles against Penicillium expansum by automated turbidimetric analysis. Mycology, 9(1), pp. 43-48.

SARDELLA, D., GATT, R. and VALDRAMIDIS, V.P., 2018. Modelling the growth of pear postharvest fungal isolates at different temperatures. Food Microbiology, 76, pp. 450-456.

SARDELLA, D., GATT, R. and VALDRAMIDIS, V.P., 2018. Turbidimetric assessment of the growth of filamentous fungi and the antifungal activity of zinc oxide nanoparticles. Journal of food protection, 81(6), pp. 934-941.

SARDELLA, D., VALDRAMIDIS, V.P. and GATT, R., 2018. Assessing the air filtration efficacy of compressed and uncompressed polyurethane foams. Journal of Food Processing and Preservation, 42(10), pp. e13706.

THIRUMDAS, R., KOTHAKOTA, A., ANNAPURE, U., SILIVERU, K., BLUNDELL, R., GATT, R. and VALDRAMIDIS, V.P., 2018. Plasma activated water (PAW): Chemistry, physico-chemical properties, applications in food and agriculture. Trends in Food Science & Technology, 77, pp. 21-31.

BRIFFA, M., DECELIS, S., BRINCAT, J., GRIMA, J.N., GATT, R. and VALDRAMIDIS, V., 2017. Evaluation of polyurethane foam materials as air filters against fungal contamination. Food Control, 73, pp. 91-100.

CASHA, A.R., CAMILLERI, L., MANCHE, A., GATT, R., GAUCI, M., CAMILLERI-PODESTA, M., GRIMA, J.N., SCARCI, M. and CHETCUTI, S., 2017. Physiological rules for the heart, lungs and other pressure-based organs. Journal of thoracic disease, 9(10), pp. 3793.

DECELIS, S., SARDELLA, D., TRIGANZA, T., BRINCAT, J., GATT, R. and VALDRAMIDIS, V.P., 2017. Assessing the anti-fungal efficiency of filters coated with zinc oxide nanoparticles. Royal Society open science, 4(5), pp. 161032.

DEGABRIELE, E.P., GRIMA‐CORNISH, J.,N., ATTARD, D., CARUANA‐GAUCI, R., GATT, R., EVANS, K.E. and GRIMA, J.N., 2017. On the Mechanical Properties of Graphyne, Graphdiyne, and Other Poly (Phenylacetylene) Networks. physica status solidi (b), 254(12), pp. 1700380.

DUDEK, K.K., GATT, R., MIZZI, L., DUDEK, M.R., ATTARD, D. and GRIMA, J.N., 2017. Global rotation of mechanical metamaterials induced by their internal deformation. AIP Advances, 7(9), pp. 095121.

DUDEK, K.K., WOLAK, W., DUDEK, M.R., CARUANA‐GAUCI, R., GATT, R., WOJCIECHOWSKI, K.W. and GRIMA, J.N., 2017. Programmable magnetic domain evolution in magnetic auxetic systems. physica status solidi (RRL)–Rapid Research Letters, 11(8), pp. 1700122.

DUDEK, K.K., GATT, R., MIZZI, L., DUDEK, M.R., ATTARD, D., EVANS, K.E. and GRIMA, J.N., 2017. On the dynamics and control of mechanical properties of hierarchical rotating rigid unit auxetics. Scientific reports, 7(1), pp. 1-9.

MAZZONELLO, A., VALDRAMIDIS, V.V., FARRUGIA, C., GRIMA, J.N. and GATT, R., 2017. Synthesis and characterization of Silver Nanoparticles. International Journal Of Modern Engineering Research (IJMER), 7.

SARDELLA, D., GATT, R. and VALDRAMIDIS, V.P., 2017. Physiological effects and mode of action of ZnO nanoparticles against postharvest fungal contaminants. Food Research International, 101, pp. 274-279.

STOJMANOVSKI MERCIECA, L.A., FORMOSA, C., GRIMA, J.N., CHOCKALINGAM, N., GATT, R. and GATT, A., 2017. On the use of auxetics in footwear: investigating the effect of padding and padding material on forefoot pressure in high heels. physica status solidi (b), 254(12), pp. 1700528.

ATTARD, D., CARUANA‐GAUCI, R., GATT, R. and GRIMA, J.N., 2016. Negative linear compressibility from rotating rigid units. physica status solidi (b), 253(7), pp. 1410-1418.

BOBA, K., BIANCHI, M., MCCOMBE, G., GATT, R., GRIFFIN, A.C., RICHARDSON, R.M., SCARPA, F., HAMERTON, I. and GRIMA, J.N., 2016. Blocked shape memory effect in negative Poisson’s ratio polymer metamaterials. ACS applied materials & interfaces, 8(31), pp. 20319-20328.

BRINCAT, J., SARDELLA, D., MUSCAT, A., DECELIS, S., GRIMA, J.N., VALDRAMIDIS, V. and GATT, R., 2016. A review of the state-of-the-art in air filtration technologies as may be applied to cold storage warehouses. Trends in Food Science & Technology, 50, pp. 175-185.

CASHA, A.R., MANCHÉ, A., CAMILLERI, L., GATT, R., DUDEK, K., PACE-BARDON, M., GAUCI, M. and GRIMA, J.N., 2016. A biomechanical hypothesis for the pathophysiology of apical lung disease. Medical hypotheses, 92, pp. 88-93.

GRIMA, J.N., MIZZI, L., AZZOPARDI, K.M. and GATT, R., 2016. Auxetic perforated mechanical metamaterials with randomly oriented cuts. Advanced Materials, 28(2), pp. 385-389.

SARDELLA, D., MUSCAT, A., BRINCAT, J., GATT, R., DECELIS, S. and VALDRAMIDIS, V., 2016. A comprehensive review of the pear fungal diseases. International Journal of Fruit Science, 16(4), pp. 351-377.

AZZOPARDI, K.M., BRINCAT, J., GRIMA, J.N. and GATT, R., 2015. Anomalous elastic properties in stishovite. RSC advances, 5(12), pp. 8974-8980.

AZZOPARDI, K.M., BRINCAT, J., GRIMA, J.N. and GATT, R., 2015. Advances in the study of the deformation mechanism of stishovite. physica status solidi (b), 252(7), pp. 1486-1491.

CASHA, A.R., CAMILLERI, L., MANCHÉ, A., GATT, R., ATTARD, D., GAUCI, M., CAMILLERI‐PODESTA, M. and GRIMA, J.N., 2015. External rib structure can be predicted using mathematical models: An anatomical study with application to understanding fractures and intercostal muscle function. Clinical Anatomy, 28(4), pp. 512-519.

CASHA, A.R., CAMILLERI, L., MANCHÉ, A., GATT, R., ATTARD, D., GAUCI, M., CAMILLERI‐PODESTA, M., MCDONALD, S. and GRIMA, J.N., 2015. Internal rib structure can be predicted using mathematical models: an anatomic study comparing the chest to a shell dome with application to understanding fractures. Clinical Anatomy, 28(8), pp. 1008-1016.

CASHA, A.R., CAMILLERI, L., MANCHÉ, A., GATT, R., ATTARD, D., WOLAK, W., DUDEK, K., GAUCI, M., GIORDIMAINA, C. and GRIMA, J.N., 2015. A hypothesis for reactivation of pulmonary tuberculosis: how thoracic wall shape affects the epidemiology of tuberculosis. Clinical Anatomy, 28(5), pp. 614-620.

GATT, R., BRINCAT, J.P., AZZOPARDI, K.M., MIZZI, L. and GRIMA, J.N., 2015. On the Effect of the Mode of Connection between the Node and the Ligaments in Anti‐Tetrachiral Systems. Advanced Engineering Materials, 17(2), pp. 189-198.

GATT, R., MIZZI, L., AZZOPARDI, J.I., AZZOPARDI, K.M., ATTARD, D., CASHA, A., BRIFFA, J. and GRIMA, J.N., 2015. Hierarchical auxetic mechanical metamaterials. Scientific reports, 5(1), pp. 1-6.

GATT, R., WOOD, M.V., GATT, A., ZARB, F., FORMOSA, C., AZZOPARDI, K.M., CASHA, A., AGIUS, T.P., SCHEMBRI-WISMAYER, P. and ATTARD, L., 2015. Negative Poisson’s ratios in tendons: an unexpected mechanical response. Acta biomaterialia, 24, pp. 201-208.

GRIMA, J.N., BAJADA, M., SCERRI, S., ATTARD, D., DUDEK, K.K. and GATT, R., 2015. Maximizing negative thermal expansion via rigid unit modes: a geometry-based approach. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 471(2179), pp. 20150188.

GRIMA, J.N., WINCZEWSKI, S., MIZZI, L., GRECH, M.C., CAUCHI, R., GATT, R., ATTARD, D., WOJCIECHOWSKI, K.W. and RYBICKI, J., 2015. Tailoring graphene to achieve negative Poisson's ratio properties. Advanced Materials, 27(8), pp. 1455-1459.

MIZZI, L., ATTARD, D., GATT, R., POZNIAK, A.A., WOJCIECHOWSKI, K.W. and GRIMA, J.N., 2015. Influence of translational disorder on the mechanical properties of hexachiral honeycomb systems. Composites Part B: Engineering, 80, pp. 84-91.

MIZZI, L., AZZOPARDI, K.M., ATTARD, D., GRIMA, J.N. and GATT, R., 2015. Auxetic metamaterials exhibiting giant negative Poisson's ratios. physica status solidi (RRL)–Rapid Research Letters, 9(7), pp. 425-430.

MIZZI, L., GATT, R. and GRIMA, J.N., 2015. Non‐porous grooved single‐material auxetics. physica status solidi (b), 252(7), pp. 1559-1564.

BRINCAT, J., AZZOPARDI, K.M., BUTTIGIEG, A., SCARPA, F., GRIMA, J.N. and GATT, R., 2014. Foams as 3D perforated systems: An analysis of their Poisson's ratios under compression. physica status solidi (b), 251(11), pp. 2233-2238.

CASHA, A.R., MANCHÉ, A., GATT, R., DUCA, E., GAUCI, M., SCHEMBRI-WISMAYER, P., CAMILLERI-PODESTA, M. and GRIMA, J.N., 2014. Mechanism of sternotomy dehiscence. Interactive cardiovascular and thoracic surgery, 19(4), pp. 617-621.

CASHA, A.R., MANCHÉ, A., GATT, R., WOLAK, W., DUDEK, K., GAUCI, M., SCHEMBRI-WISMAYER, P., CAMILLERI-PODESTA, M. and GRIMA, J.N., 2014. Is there a biomechanical cause for spontaneous pneumothorax? European Journal of Cardio-Thoracic Surgery, 45(6), pp. 1011-1016.

CHETCUTI, E., ELLUL, B., MANICARO, E., BRINCAT, J., ATTARD, D., GATT, R. and GRIMA, J.N., 2014. Modeling auxetic foams through semi‐rigid rotating triangles. physica status solidi (b), 251(2), pp. 297-306.

DUDEK, M.R., GRIMA, J.N., CAUCHI, R., ZERAFA, C., GATT, R. and ZAPOTOCZNY, B., 2014. Space dependent mean field approximation modelling. Journal of Statistical Physics, 154(6), pp. 1508-1515.

GATT, R., CARUANA‐GAUCI, R., ATTARD, D., CASHA, A.R., WOLAK, W., DUDEK, K., MIZZI, L. and GRIMA, J.N., 2014. On the properties of real finite‐sized planar and tubular stent‐like auxetic structures. physica status solidi (b), 251(2), pp. 321-327.

MIZZI, L., ATTARD, D., CASHA, A., GRIMA, J.N. and GATT, R., 2014. On the suitability of hexagonal honeycombs as stent geometries. physica status solidi (b), 251(2), pp. 328-337.

GATT, R., ATTARD, D., FARRUGIA, P., AZZOPARDI, K.M., MIZZI, L., BRINCAT, J. and GRIMA, J.N., 2013. A realistic generic model for anti‐tetrachiral systems. physica status solidi (b), 250(10), pp. 2012-2019.

GATT, R., CARUANA-GAUCI, R. and GRIMA, J.N., 2013. Giant response. Nature materials, 12(3), pp. 182-183.

GRIMA, J.N., CARUANA-GAUCI, R., DUDEK, M.R., WOJCIECHOWSKI, K.W. and GATT, R., 2013. Smart metamaterials with tunable auxetic and other properties. Smart Materials and Structures, 22(8), pp. 084016.

GRIMA, J.N., CAUCHI, R., GATT, R. and ATTARD, D., 2013. Honeycomb composites with auxetic out-of-plane characteristics. Composite structures, 106, pp. 150-159.

GRIMA, J.N., ELLUL, B., GATT, R. and ATTARD, D., 2013. Negative thermal expansion from disc, cylindrical, and needle shaped inclusions. physica status solidi (b), 250(10), pp. 2051-2056.

CASHA, A.R., MANCHÉ, A., GAUCI, M., CAMILLERI-PODESTA, M., SCHEMBRI-WISMAYER, P., SANT, Z., GATT, R. and GRIMA, J.N., 2012. Placement of trans-sternal wires according to an ellipsoid pressure vessel model of sternal forces. Interactive cardiovascular and thoracic surgery, 14(3), pp. 283-287.

GRIMA, J.N., CARUANA-GAUCI, R., ATTARD, D. and GATT, R., 2012. Three-dimensional cellular structures with negative Poisson's ratio and negative compressibility properties. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 468(2146), pp. 3121-3138.

GRIMA, J.N., CHETCUTI, E., MANICARO, E., ATTARD, D., CAMILLERI, M., GATT, R. and EVANS, K.E., 2012. On the auxetic properties of generic rotating rigid triangles. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 468(2139), pp. 810-830.

GATT, R., ATTARD, D., MANICARO, E., CHETCUTI, E. and GRIMA, J.N., 2011. On the effect of heat and solvent exposure on the microstructure properties of auxetic foams: A preliminary study. physica status solidi (b), 248(1), pp. 39-44.

GRIMA, J.N., ATTARD, D., CARUANA-GAUCI, R. and GATT, R., 2011. Negative linear compressibility of hexagonal honeycombs and related systems. Scripta Materialia, 65(7), pp. 565-568.

GRIMA, J.N., ATTARD, D., ELLUL, B. and GATT, R., 2011. An improved analytical model for the elastic constants of auxetic and conventional hexagonal honeycombs. Cellular Polymers, 30(6), pp. 287-310.

GRIMA, J.N., ATTARD, D. and GATT, R., 2011. Unusual thermoelastic properties of methanol monohydrate. Science, 331(6018), pp. 687-688.

GRIMA, J.N., RAVIRALA, N., GALEA, R., ELLUL, B., ATTARD, D., GATT, R., ALDERSON, A., RASBURN, J. and EVANS, K.E., 2011. Modelling and testing of a foldable macrostructure exhibiting auxetic behaviour. physica status solidi (b), 248(1), pp. 117-122.

ALDERSON, A., ALDERSON, K.L., ATTARD, D., EVANS, K.E., GATT, R., GRIMA, J.N., MILLER, W., RAVIRALA, N., SMITH, C.W. and ZIED, K., 2010. Elastic constants of 3-, 4-and 6-connected chiral and anti-chiral honeycombs subject to uniaxial in-plane loading. Composites Science and Technology, 70(7), pp. 1042-1048.

GRIMA, J.N. and GATT, R., 2010. The effect of pressure on the nanostructure of auxetic zeolites and silicates.

GRIMA, J.N. and GATT, R., 2010. On the behaviour of natrolite under hydrostatic pressure. Journal of Non-Crystalline Solids, 356(37-40), pp. 1881-1887.

GRIMA, J.N. and GATT, R., 2010. Perforated sheets exhibiting negative Poisson's ratios. Advanced engineering materials, 12(6), pp. 460-464.

GRIMA, J.N., GATT, R., ELLUL, B. and CHETCUTI, E., 2010. Auxetic behaviour in non-crystalline materials having star or triangular shaped perforations. Journal of Non-Crystalline Solids, 356(37-40), pp. 1980-1987.

GRIMA, J.N., OLIVERI, L., ATTARD, D., ELLUL, B., GATT, R., CICALA, G. and RECCA, G., 2010. Hexagonal honeycombs with zero Poisson's ratios and enhanced stiffness. Advanced Engineering Materials, 12(9), pp. 855-862.

GRIMA, J.N., OLIVERI, L., ELLUL, B., GATT, R., ATTARD, D., CICALA, G. and RECCA, G., 2010. Adjustable and negative thermal expansion from multilayered systems. physica status solidi (RRL)–Rapid Research Letters, 4(5), pp. 133-135.

ATTARD, D., MANICARO, E., GATT, R. and GRIMA, J.N., 2009. On the properties of auxetic rotating stretching squares. physica status solidi (b), 246(9), pp. 2045-2054.

GATT, R., ATTARD, D. and GRIMA, J.N., 2009. On the behaviour of bi-material strips when subjected to changes in external hydrostatic pressure. Scripta Materialia, 60(2), pp. 65-67.

GRIMA, J.N., ATTARD, D., GATT, R. and CASSAR, R.N., 2009. A novel process for the manufacture of auxetic foams and for their re‐conversion to conventional form. Advanced Engineering Materials, 11(7), pp. 533-535.

GRIMA, J.N., CASSAR, R.N. and GATT, R., 2009. On the effect of hydrostatic pressure on the auxetic character of NAT-type silicates. Journal of Non-Crystalline Solids, 355(24-27), pp. 1307-1312.

GATT, R. and GRIMA, J.N., 2008. Negative compressibility. physica status solidi (RRL)–Rapid Research Letters, 2(5), pp. 236-238.

GATT, R., ZAMMIT, V., CARUANA, C. and GRIMA, J.N., 2008. On the atomic level deformations in the auxetic zeolite natrolite. physica status solidi (b), 245(3), pp. 502-510.

GRIMA, J.N., ATTARD, D., CASSAR, R.N., FARRUGIA, L., TRAPANI, L. and GATT, R., 2008. On the mechanical properties and auxetic potential of various organic networked polymers. Molecular Simulation, 34(10-15), pp. 1149-1158.

GRIMA, J.N., ATTARD, D. and GATT, R., 2008. Truss‐type systems exhibiting negative compressibility. physica status solidi (b), 245(11), pp. 2405-2414.

GRIMA, J.N., FARRUGIA, P.S., CARUANA, C., GATT, R. and ATTARD, D., 2008. Auxetic behaviour from stretching connected squares. Journal of Materials Science, 43(17), pp. 5962-5971.

GRIMA, J.N., FARRUGIA, P., GATT, R. and ATTARD, D., 2008. On the auxetic properties of rotating rhombi and parallelograms: A preliminary investigation. physica status solidi (b), 245(3), pp. 521-529.

GRIMA, J.N., GATT, R. and FARRUGIA, P., 2008. On the properties of auxetic meta‐tetrachiral structures. physica status solidi (b), 245(3), pp. 511-520.

GRIMA, J.N., ZAMMIT, V., GATT, R., ATTARD, D., CARUANA, C. and BRAY, T.G.C., 2008. On the role of rotating tetrahedra for generating auxetic behavior in NAT and related systems. Journal of Non-Crystalline Solids, 354(35-39), pp. 4214-4220.

GRIMA, J.,N., FARRUGIA, P., GATT, R. and ZAMMIT, V., 2007. Connected triangles exhibiting negative Poisson's ratios and negative thermal expansion. Journal of the Physical Society of Japan, 76(2), pp. 025001.

GRIMA, J.N., FARRUGIA, P.S., GATT, R. and ZAMMIT, V., 2007. A system with adjustable positive or negative thermal expansion. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 463(2082), pp. 1585-1596.

GRIMA, J.N., GATT, R., ZAMMIT, V., WILLIAMS, J.J., EVANS, K.E., ALDERSON, A. and WALTON, R.I., 2007. Natrolite: A zeolite with negative Poisson’s ratios. American Institute of Physics.

GRIMA, J.N., ZAMMIT, V., GATT, R., ALDERSON, A. and EVANS, K.E., 2007. Auxetic behaviour from rotating semi‐rigid units. physica status solidi (b), 244(3), pp. 866-882.

GRIMA, J.N., GATT, R., ALDERSON, A. and EVANS, K.E., 2006. An alternative explanation for the negative Poisson's ratios in α-cristobalite. Materials Science and Engineering: A, 423(1-2), pp. 219-224.

GRIMA, J.N., GATT, R., RAVIRALA, N., ALDERSON, A. and EVANS, K.E., 2006. Negative Poisson's ratios in cellular foam materials. Materials Science and Engineering: A, 423(1-2), pp. 214-218.

GRIMA, J.N., GATT, R., ALDERSON, A. and EVANS, K.E., 2005. On the potential of connected stars as auxetic systems. Molecular Simulation, 31(13), pp. 925-935.

GRIMA, J.N., GATT, R., ALDERSON, A. and EVANS, K.E., 2005. On the auxetic properties of ‘rotating rectangles’ with different connectivity. Journal of the Physical Society of Japan, 74(10), pp. 2866-2867.

GRIMA, J.N., GATT, R., ALDERSON, A. and EVANS, K.E., 2005. On the origin of auxetic behaviour in the silicate α-cristobalite. Journal of Materials Chemistry, 15(37), pp. 4003-4005.

GRIMA, J.N., GATT, R., BRAY, T.C., ALDERSON, A. and EVANS, K.E., 2005. Empirical modelling using dummy atoms (EMUDA): an alternative approach for studying “auxetic” structures. Molecular Simulation, 31(13), pp. 915-924.

GRIMA, J.N., WILLIAMS, J.J., GATT, R. and EVANS, K.E., 2005. Modelling of auxetic networked polymers built from calix [4] arene building blocks. Molecular Simulation, 31(13), pp. 907-913.

  • CHE0012 - Foundations of Chemistry and Biochemistry
  • CHE1012 - Principles of Chemistry and Biochemistry related to Care
  • CHE1204 - Principles of Materials Modelling
  • FEH1103 - An Introduction to Mathematical Techniques in Food Science
  • FEH5100 - Modelling Techniques in Health Sciences
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