Na sequência do seu trabalho de doutoramento, continua envolvido no isolamento e identificação de produtos naturais com actividade biológica, com ênfase nos estudos de propriedades oxidantes e antioxidantes. Os novos trabalhos de investigação entretanto iniciados na área da Quimiometria de compostos quirais (Construção de base de dados, para uso de Redes Neuronais na previsão computacional da enantioselectividade), Biodiesel, Biofuel, Análise de Xenobióticos, Antibióticos, Pesticidas, Análise de Proteínas, Química Radicalar, Síntese de Líquidos Iónicos, Proteómica, Biosensores, envolvem toda a especialização desenvolvida na área da cromatografia e técnicas hifenadas, com ênfase no GC-MS e LC-MS, permitindo a sua aplicação a novas áreas de investigação.
- Isolation and characterization of a stress-inducible Dunaliella salina Lcy-B gene encoding a functional lycopene B-cyclase, Ana Ramos, Sacha Coesel, Ana Marques, Marta Rodrigues, Alexandra Baumgartner, João Noronha, Amélia Rauter, Bertram Brenig and João Varela, Applied Microbiology and Biotechnology, Volume 79, Number 5, July 2008, pp.819-828(10)
- Use of In Vivo 13C Nuclear Magnetic Resonance Spectroscopy To Elucidate L-Arabinose Metabolism in Yeasts, César Fonseca, Ana Rute Neves, Luís L. Fonseca, Alexandra M.M. Antunes, João Paulo Noronha, Bärbel Hahn-Hägerdal, Helena Santos and Isabel Spencer-Martins, Applied and Environmental Microbiology, 2008, March, 1845-1855.
- Molecular Motions in Amorphous Ibuprofen As Studied by Broadband Dielectric Spectroscopy, A. R. Bras, J. P. Noronha, A. M.M. Antunes, M.M. Cardoso, A. Schoenhals, F. Affouard, M. Dionisio, and N.T. Correia, J. Phys. Chem. B, 2008, Vol. 112, 11087-11099.
- Bioactivity studies and chemical profile of the antidiabetic plant Genista tenera, Amélia P. Rauter, Alice Martins, Rui Lopes, Joana Ferreira, Luísa M. Serralheiro, Maria-Eduarda Araújo, Carlos Borges, Jorge Justino, Filipa V. Silva, Margarida Goulart, Jane Thomas-Oates, João A. Rodrigues, Emma Edwards, João P. Noronha, Rui Pinto, Hélder Mota-Filipe, Journal of Ethnopharmacology, 2008 Vol. 122 (2), 18 March 2009, 384-393.
- Scavenging Activity of Aminoantipyrines Against Hydroxyl Radical, Pedro M.P. Santos, Alexandra Antunes, João Noronha, Eduarda Fernandes, Abel J.S.C. Vieira, European Journal of Medicinal Chemistry, 45 (2010), 2258-2264.
- Sensors for detection/quantification of bacterial contamination in waters for Human use, R.B. Queirós, J.P. Noronha, M.G.F. Sales, G. González Aguilar, Advanced Engineering Materials, (2010) vol. 12, n.5, p.175-178.
- Biological treatment of propanil and 3,4-dichloroaniline: Kinetic and microbiological characterisation, G. Carvalho, R. Marques, A.R. Lopes, C. Faria, J.P. Noronha, A. Oehmen, O.C. Nunes, M.A.M. Reis, Water Research, Vol. 44, N. 17, 2010, 4980-4991.
- Pesticides in Water and the Performance of the Liquid Phase Microextraction Based Techniques. A Review, M. Isabel Pinto, Gerhard Sontag, R. J. Bernardino, J.P. Noronha, Microchem J, 2010, Vol. 96, N. 2, 225-237.
- Analysis of 65 Pharmaceuticals and Personal Care Products in 5 Wastewater Treatment Plants in Portugal Using a Simplified Analytical Methodology, Salgado R., Noronha J.P., Oehmen A., Carvalho G. AND Reis M.A.M. Water Science & Technology, 2010, 62(12), 2862-2871.
- Flavored Waters: Influence of Ingredients on Antioxidant Capacity and Terpenoid Profile by HS-SPME/GC-MS, M. Fátima Barroso, J.P. Noronha, Cristina Delerue-Matos, and M. B. P. P. Oliveira, J. Agric. Food Chem., Publication Date (Web): April 4, 2011, 59(9), pp.5062-5072.
- Microcystin-LR detection in water by the Fabry-Pérot interferometer using an optical fibre coated with a sol-gel imprinted sensing membrane, Raquel B. Queirós, S.O. Silva, J.P. Noronha, O. Frazão, P. Jorge, G. Aguilar, P.V.S. Marques, M.G.F. Sales; Biosens. Bioelectron. 26(9), 15 May 2011, 3932-3937.
- Ionic Liquids as Active Pharmaceutical Ingredients, MiniReview – ChemMedChem, Ricardo Ferraz, Luís C. Branco,Cristina Prudêncio, João Paulo Noronha and Željko Petrovski, ChemMedChem, 6, 975-985, 2011.
- Myoglobin-Biomimetic Electroactive Materials made by Surface Molecular Imprinting on Silica Beads and their used as Ionophores in Polymeric Membranes for Potentiometric Transduction, Felismina T.C. Moreira, Rosa A.F. Dutra, Joao P.C. Noronha, M. Goreti F. Sales, Biosensors and Bioelectronics, 2011, DOI:10.1016/j.bios.2011.05.045