Ana Margarida Madeira Viegas de Barros Timmons

Associate Professor

Short CV

Education: (i) PhD in Chemistry from the University of Manchester under the supervision of Professor Philip Hodge, Thesis: “The Synthesis and Study of Novel Materials for Use as Functional LB Films” (1997);  (ii) M.Sc. in Bioactive Molecules, University of North London (1992); (iii) 4th year of the Course of Applied Chemistry - Organic Chemistry, Univ. Nova de Lisboa (1990); (iv) B.Sc. in Chemical Engineering, ISEL (1988).

Professional Experience:

Since July 1996 - Universidade de Aveiro – Assistant Professor at the Dept. of Chemistry responsible for a variety of courses on Polymers and Chemical Engineering laboratories. During this period, amongst various administrative jobs, has participated in the preparation of two Erasmus Mundus MSc programmes in the field of Materials Science which she coordinated and/or was/is member of the coordination team;

1993 - 1996 - University of Manchester - Dept. of Chemistry (Polymer Section) - Research Assistant. Synthesis of amphiphilic polymers and calixarenes; Study of monolayer properties, fabrication and characterization of the derived Langmuir-Blodgett films.

1993 - 6 months contract at SHELL (Kent) - Dept. of Environment - Research Assistant. Bioremediation and analyses of soils and ground waters.

1991 - 1993 KODAK (London) - Dept. of Emerging Technologies - Synthetic Chemist. Synthesis of new polymeric surfactants for drug delivery and imaging; use of a computer controlled reactor.

1987 - 1990 LNETI (Queluz) - Dept. of Chemical Technologies - Research Assistant. Synthesis, scale-up and purification of resinic acids derivatives.

Scientific Interests

Synthesis and characterization of functional polymer based nanocomposites (PFN) via in situ polymerization techniques namely emulsion and miniemulsion; Radical controlled/living polymerization mechanisms namely ATRP and RAFT; Surface modification of inorganic nanoparticles for the preparation of PFN; Use of polysaccharides to prepare nanocomposites and hybrid materials;Thermal analysis; Biosensors and Colloids.

Present projects

- FCT-IUPAC/0001/2009-Encircle-Polymer-ENCapsulation of anisotropic InoRganic partiCLEs by RAFT-mediated emulsion polymerization” , 1-07-2011 -30_06-2014 (95.000,00 €) ; National Project Coordinator.

- EXPL/CTM-ENE/0548/2012 – “CelFuelCel – Bacterial Cellulose membranes for proton exchange fuel cells”; 1-1-2013 to: 31-12-2013  (48.082,00 €); - team member.

- RECI/CTM-CER/0336/2012 – “Heat@UA  Facing the challenges of characterizing novel thermal materials and processes”; 1/3/2013 to 31/12/2015 (425.134,00 €); - team member.

Research funded via QREN

-  Greenpec, July 2013 - June 2015 ( 351.524, 88 €); - team member.


Selected Publications

List of most representative publications during the last 5 years  

Book Chapter

Esteves ACC, Barros-Timmons A (2011) “Synthetic Strategies for Polymer Based - Nanocomposite Particles”. In Trindade T, Daniel-da-Silva AL (ed.). In “Nanocomposite Particles for Bio-Applications – Materials and Bio-Interfaces”, Singapore, Pan Stanford Publishing, pp.  115-143. ISBN:13 978-981-4267-78-6.

 Scientific Papers

  • M Ghislandi, K Schulte, A. Barros-Timmons and Luis A. S. A. Prado, “Effect of filler functionalization on thermo-mechanical properties of Polyamide 12 / Carbon nanofibers composites: A study of filler-matrix molecular interactions”, Accepted by Journal of Materials Science,  August 2013.
  • Sónia O. Pereira, Ana Barros-Timmons, Tito Trindade, “Biofunctionalization of colloidal gold nanoparticles via polyelectrolytes assemblies”, Colloid and Polymer Science 2013. In press.
  • P. R. Figueiredo, A. Alonso-Varona, S. C. M. Fernandes, T. Palomares, E. Rubio, A. Barros-Timmons, A.J. D. Silvestre, C.P. Neto and C. S. R. Freire, “Biocompatible Bacterial Cellulose–Poly(2-hydroxyethyl methacrylate) Nanocomposite Films”, BioMed Research International, April 2013. In press.
  • Paula S. S. Lacerda, Ana M. M. V. Barros-Timmons, Carmen S. R. Freire, Armando J. D. Silvestre, Carlos P. Neto, “Nanostructured composites obtained by ATRP sleeving of bacterial cellulose nanofibers with acrylate polymers”, Biomacromolecules, 14, 2063−2073 (2013).
  • Adriano A. Torrano, Ângela S. Pereira, Osvaldo N. Oliveira Jr and Ana Barros-Timmons, “Probing the Interaction of Oppositely Charged Gold Nanoparticles with DPPG and DPPC Langmuir Monolayers as Cell Membrane Models”, Colloids and Surfaces B: Biointerfaces, 108 (2013) 120– 126.
  • Gil Gonçalves,Paula A. A. P. Marques,, Ana Barros-Timmons,Igor Bdkin, Manoj K. Singh, Nazanin Emami and José Grácio, "Graphene oxide modified with PMMA via ATRP as reinforcement filler", J. Mater. Chem., 20 (44): 9927 – 9934 (2010).
  • Fabiane Oliveira, Sónia R. Monteiro, Ana Barros-Timmons, J.A. Lopes-da-Silva, “Weak-gel formation in dispersions of silica particles in a matrix of a nonionic polysaccharide: Structure and rheological characterization”,Carbohydrate Polymers, 82: 1219–1227 (2010).
  • Belete A. Gonfa, A. F. da Cunha and Ana B. Timmons, “ZnO Nanostructures for Photovoltaic Cells”, Physica Status Solidi  B, 247:1633-1636 (2010). 
  • Oliveira, F. C., Barros-Timmons, A., Lopes-da-Silva, J.A., “Preparation and characterization of chitosan/SiO2 composite films”, J. Nanosc. Nanotech., 10(4): 2816 (2010). 
  • Pavinatto, Adriana, Pavinatto, Felippe, Barros-Timmons, Ana, Oliveira, Osvaldo, “Electrostatic interactions are not sufficient to account for the chitosan bioactivity", ACS Applied Materials &  Interfaces, 2, 1, 246–251 (2010).
  • A.C.C: Esteves, P. Hodge, T. Trindade and A.M.M. V Barros-Timmons, “Preparation of nancomposites by Reversible addition-fragmentation chain transfer /RAFT) Polymerization from the surface of Quantum Dots in Miniemulsion”, J. Polym. Sci.: Part A: Polymer Chemistry, 47: 5367-5377(2009).
  • F. Amaral, C.P.L. Rubinger, F. Henry, L.C. Costa, M.A. Valente, A. Barros-Timmons, “Dielectric properties of polystyrene–CCTO composite”,  J Non-Cryst Solids, 354: 5321–5322 (2008).
  • S. Pereira, P. Rauwel, M. S. Reis, N. J. O. Silva, A. Barros-Timmons, T. Trindade, Polymer encapsulation effects on the magnetism of EuS nanocrystals”, J. Mater. Chem., 18: 1–8 (2008).  
  • Marián Lehocký, Priscilla Filomena Fonseca Amaral, Pavel Sťahel, Maria Alice Zarur Coelho, Ana Margarida Barros-Timmons and João Araújo Pereira Coutinho, “Deposition of Yarrowia lipolytica on Plasma Prepared Teflon-Like Thin Films”, Surface Engineering, 24: 23-27 (2008).
  • M.G. Ghislandi, L.A.S.A. Prado, A.V. Oyerviedes, H. Wittich, K. Schulte, A. Barros- Timmons, “Functionalisation of Carbon Nanofibres (CNFs) through Atom Transfer Radical Polymerisation for the Preparation of Poly(tert-butyl acrylate)/CNF Materials: Spectroscopic, Thermal, Morphological and Physical Characterisations”, J. Polym. Sci.: Part A: Polymer Chemistry: 46, 3326–3335 (2008).
  • C.P.L. Rubinger, L.C. Costa, A.C.C. Esteves, A. Barros-Timmons,J.A. Martins, “Hopping conduction on PPy/SiO2 nanocomposites obtained via in situ emulsion polymerisation”, J. Mater Sci , 43: 3333–3337 (2008).
  • R. J. B. Pinto, P. A. A. P. Marques, A. M. Barros-Timmons, T. Trindade, C. Pascoal Neto, “Novel SiO2/cellulose nanocomposites obtained by in situ synthesis and via polyelectrolytes assembly”,  Compos Sci Technol. 68: 1088–1093(2008).
  • A.C. Esteves, L. Bombalski, K. Matyjaszewski, T. Trindade and A.M. Barros-Timmons, “polymer grafting from CdS Quantum Dots via AGET ATRP in Miniemulsion”, Small, 3: 7, 1230-1236 (2007).
  • Marián Lehocký, Priscilla Filomena Fonseca Amaral, Pavel Sťahel, Maria Alice Zarur Coelho, Ana Margarida Barros-Timmons, João Araújo Pereira Coutinho, “Preparation and characterization of organosilicon thin films for selective adhesion of Yarrowia lipolytica yeast cells”, J. Chem. Technol.  Biotechnol, 82:360–366 (2007).

Ongoing Supervisions


Bioeconomia para Têxtil e Vestuário (BE@T)

PartnerIndustry National
Apoiada pelo Plano de Recuperação e Resiliência (PRR), a indústria têxtil nacional vai investir 138 milhões de euros na bioeconomia sustentável, procurando a mudança de paradigma para o setor e a criação de produtos de alto valor ...

GreenAuto:Green innovation for the Automotive Industry (GREENAUTO)

PartnerIndustry National
The GreenAuto Agenda aims to transform the national automotive industry, in the context of the current transition to low emission vehicles. To this end, it proposes the creation of technical and operational conditions for Stellantis Mangualde to start the production of a new light commercial vehicle (LCV) in Portugal, namely a battery electric l...


Local CoordinatorIndustry National
ILLIANCE Agenda embodies a complex ecosystem of integrated projects which aims at addressing the goal of carbon neutrality of the buildings sector, which represents 40% of global CO2 emissions. The adopted approach adopted is based on the development of complementary technologies associated with 3 core pillars, i.e.: health, comfort and...

Inovação na Fileira da Resina Natural para Reforço da Bioeconomia Nacional (RN21)

PartnerIndustry National
A transição para uma economia mais sustentável, oferece inúmeras oportunidades para revitalizar os setores mais tradicionais da economia portuguesa, onde destacamos a produção e transformação da resina natural.O Projeto Integrado RN21 – Ino...

Bacterial Cellulose Membranes for Proton Exchange Fuel Cells (EXPL/CTM-ENE/0548/2012)

PartnerFundação para a Ciência e a Tecnologia
Bacterial cellulose fuell cells proton exchange membranes in situ polymerization/grafting

Desenvolvimento de espumas flexíveis de poliuretano de baixo odor para a indústria automóvel (Ecofoam)

PartnerIndustry National
O projeto EcoFoam tem como principal objetivo produzir PUF para a indústria automóvel com características inovadoras ao nível da sua contribuição para a qualidade do ar interior do automóvel, tanto na fase inicial do automóvel (“carro novo&rdquo...

Desenvolvimento de rolhas de cortiça produzidas por processos mais verdes e sustentáveis (GCORK)

PartnerIndustry National
"O Projeto GCORK tem por objetivo capacitar a Amorim Cork a ser a primeira empresa a lançar no mercado uma gama de rolhas de cortiça aglomerada com colas e tratamentos de superfície Bio, produzidas por processos mais verdes e mais sustentáveis. Este produto será extremamente inovador po...

Ecopolyol - Desenvolvimento do processo de produção de polióis a partir de resíduos de biomassa (ECOPOLYOL)

PartnerIndustry National
Construção e desenvolvimento de uma Instalação Piloto para Demonstração Industrial, certificação e validação do processo industrial do ponto de vista de Boas Práticas e Tecnologia Segura, obtenção de amostras industriais e certificação produto. Testar a viabilidade química e física das matérias primas.

Enabling the Next Generation of Smarter Transformers (NEXTRA)

PartnerIndustry National

Encircle - Polymer-encapsulation of anisotropic inorganic particles by RAFT-mediated emulsion polymerization (FCT-IUPAC/0001/2009)

Local CoordinatorFundação para a Ciência e a Tecnologia

Facing the challenges of characterizing novel thermal materials and processes (Heat@UA) (RECI/CTM-CER/0336/2012)

PartnerFundação para a Ciência e a Tecnologia
Thermal properties of materials Thermal processes Thermometry Nano-scale studies

GREENPEC - Desenvolvimento de um plastificante primário para PVC, de origem animal e livre de ftalatos (GREENPEC )

PartnerIndustry National
O objetivo principal deste projeto, levado a cabo pelo consórcio entre a Sapec Química e a Universidade de Aveiro, consiste no desenvolvimento de um plastificante primário para PVC originado a partir de óleos vegetais, os quais são considerados recursos renováveis e agentes de crescimento sustentável. Com o cumprimento destes objetivos, prevê-se...

Innovative Products and Technologies from Eucalyptus Project (InPacTus)

PartnerIndustry National
Inpactus, to be developed by the Consortium, aims to develop new solutions, such as cellulosic pulps with innovative features, new paper products with different specificities and functions, tissue paper with innovative properties, new bioproducts, biofuels and other materials obtained from the deconstruction and conversion of forest biomass and ...

Inovação na produção de subprodutos salinos em simbiose industrial (SIMBIOSALT)

PartnerIndustry National
O projeto SimbioSalt visa estudar uma alternativa de valorização daqueles resíduos em que, através da conjugação de tecnologias, desenvolver-se-á uma solução que permita a obtenção de um produto com valor comercial –...

Inovadores Adesivos Texteis Condutores (CONDAD)

PartnerIndustry National
More details here

Nanochemistry of magnetic/luminescent composites for in vitro medical diagnosis applications (PTDC/QUI/67712/2006)

PartnerFundação para a Ciência e a Tecnologia
Nanoparticles Nanocomposites Magnetism/Luminescence Antibodies bioconjugation

SGH : Smart Green Homes (Smart Green Homes)

PartnerIndustry National
The Smart Green Homes (SGH) Project aims to develop integrated product and technology solutions for the households, raising standards of comfort, safety and user satisfaction to a new level and, at the same time, to respond to the problems of sustainability of the Planet, increasing the energy efficiency and reducing the emission of gaseous poll...

Sistema Inteligente Multifuncional de Iluminação e Acústica para promoção de saúde e bem-estar no trabalho (SimIA)

PartnerIndustry National

Study of functional mortars for a sustainable construction (PTDC/ECM/72104/2006)

PartnerFundação para a Ciência e a Tecnologia
mortar sustainable construction functional material energy and environment

Valorização de desperdícios de espumas flexíveis de poliuretano por conversão em polióis (FlexiRecover)

PartnerIndustry National
The main purpose of this project is the development of a production process of polyols from residues and sub products of flexible polyurethane foams with quality to be reincorporated in the production of new foams, with a percentage of 10-20% of the virgin polyols used and whose application sectors are the Flexible polyurethane foam manufacturer...


Chemically modified bamboo fiber/ABS composites for high-quality additive manufacturing

Gama, N; Magina, S; Ferreira, A; Barros-Timmons, A
2021, POLYMER JOURNAL, 53, 12, 1459-1467.
ISBN: 1349-0540

Lignosulfonate-Based Conducting Flexible Polymeric Membranes for Liquid Sensing Applications

Magina, S; Rudnitskaya, A; Soreto, S; Costa, LC; Barros-Timmons, A; Evtuguin, DV
2021, MATERIALS, 14, 18.
ISBN: 1996-1944

Recycling of polyurethane wastes using different carboxylic acids via acidolysis to produce wood adhesives

Godinho, B; Gama, N; Barros-Timmons, A; Ferreira, A
2021, JOURNAL OF POLYMER SCIENCE, 59, 8, 697-705.
ISBN: 2642-4169

Synthesis of Lignosulfonate-Based Dispersants for Application in Concrete Formulations

Magina, S; Barros-Timmons, A; Evtuguin, DV
2021, MATERIALS, 14, 23.
ISBN: 1996-1944

Evaluating the hazardous impact of ionic liquids-Challenges and opportunities

Magina, S; Barros-Timmons, A; Ventura, SPM; Evtuguin, DV
ISBN: 1873-3336

Recycling of different types of polyurethane foam wastes via acidolysis to produce polyurethane coatings

Godinho, B; Gama, N; Barros-Timmons, A; Ferreira, A

Lignosulfonate-Based Polyurethane Adhesives

Magina, S; Gama, N; Carvalho, L; Barros-Timmons, A; Evtuguin, DV
2021, MATERIALS, 14, 22.
ISBN: 1996-1944

Polyamide 6/modified pine bark particle composites for additive manufacturing

Gama, N; Ferreira, A; Barros-Timmons, A; Evtuguin, D
2021, JOURNAL OF MATERIALS SCIENCE, 56, 34, 19093-19105.
ISBN: 1573-4803

Recycling of polyurethane by acidolysis: The effect of reaction conditions on the properties of the recovered polyol

Gama, N; Godinho, B; Marques, G; Silva, R; Barros-Timmons, A; Ferreira, A
2021, POLYMER, 219.
ISBN: 1873-2291

PU composites based on different types of textile fibers

Gama, N; Godinho, B; Barros-Timmons, A; Ferreira, A
2021, JOURNAL OF COMPOSITE MATERIALS, 55, 24, 3615-3626.
ISBN: 1530-793X

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