Conference Programme

Timetable of Papers 

Day 1 – Monday 16th October

10.30am  Welcome 

11.00 am Keynote: Gels, green chemistry, gurus and guides 
Richard Wolbers

11.30am Thermo-reversible rigid agar hydrogels: their properties and action in cleaning
Paolo Cremonesi

12.00pm Cold, warm, warmer:  use of precision heat transfer in the optimization of hydrolytic enzyme and hydrogel cleaning systems
Tomas Markevicius

12.15pm Gellan gum and agar compared to aqueous immersion for cleaning paper
Céline Delattre

12.30pm Evaluation of leather cleaning with a rigid hydrogel of gellan gum on two composite Amharic shields from the Museo Nazionale Preistorico Etnografico ‘Luigi Pigorini’, Rome
Flavia Puoti

12.40pm Question and Answer session

13.00 – 14.30pm Lunch Break

14.30pm The treatment of Barnett Newman’s Shining Forth in the MNAM Pompidou collection
Véronique Sorano Stedman

15.00pm The use of agar gel for treating water stains on an acrylic canvas
Maggie Barkovic

15.15pm Cleaning the Adolphe Roger murals at the Church of Notre Dame de Lorette, Paris
Méliné Miguirditchian

15.30pm A study of thickened protein glues for the readhesion of absorbent flaking paints with methylcellulose and wheat starch paste
Karolina Soppa

15.40pm Question and Answer session

15.55 – 16.35pm Break

16.35pm A study of commercial agar gels as cleaning materials
Moira Bertasa

17.05pm Measurement of surface pH of paper using agarose gel plugs: a feasibility study
Amy Hughes

17.20pm Gelling predictions: the challenges of taking research into practice
Emma Schmitt

17.30pm Question and Answer session


Day 2 – Tuesday 17th October

9.30am Coupling gellan gels and electrochemical biosensors: real-time monitoring of cleaning and enzymatic treatments on a paper artwork
Serena Dominijanni

10.00am Rigid polysaccharide gels for paper conservation: a residue study
Michelle Sullivan

10.30am Challenges of a virgin water-sensitive surface: designing a cast agar gel cleaning system for Patrick Heron’s Still-life against the Sea: 1949
Alysia Sawicka

10.45am Agarose-enzyme gels in paper conservation
Yana van Dyke

11.00am Investigating the ability of phytate gel systems to treat iron gall ink at the British Library
Zoë Miller

11.10am Question and Answer session

11.25 – 12.05pm Break

12.05pm Resurrecting a giant: using solvent gels and aqueous systems to restore Villanova University’s Triumph of David
Kristin deGhetaldi

12.20pm The influence of organic and inorganic alkalis on the formulation and properties of Pemulen TR-2 gels
Sofia Hennen

12.35pm Giant sequoia: an extraordinary case study involving Carbopol gel
Lu Allington-Jones

12.50pm Revisiting a shipwrecked felt hat for Chatham Historic Dockyard Trust: a multidisciplinary approach
Jonathan Clark

13.00pm Question and Answer session

13.15 – 14.30pm Lunch Break

14.30pm Gels: evolution in practice
Chris Stavroudis

15.00pm Conservation of murals by Eugène Delacroix at Saint Sulpice, Paris
Alina Moskalik-Detalle

15.30pm Particle-based silicone cleaning emulsions: studies in model paint systems for the cleaning of water-sensitive artworks
Anthony Lagalante

16.00pm Cleaning assessment of a vinyl dispersion paint: comparing Velvesil Plus Gel, microemulsions and aqueous solutions
Emilie Faust

16.15pm Silicone polymers for the removal of grime from a selectively varnished oil, graphite and ink painting
Birgit Straehle

16.25pm Question and Answer session

16.45 – 18.00 Poster Session 

18.00 – 19.00 Tate Lecture : “NANORESTART Project at Tate”


Day 3 – Wednesday 18th October

9.15am Poly(vinyl alcohol)-borax ‘gels’: a flexible cleaning option
Lora Angelova

9.45am Novel surface-attached gels from photo-crosslinkable polyacrylamides for the cleaning of works of art
Charis Theodorakopoulos

10.15am Innovative techniques for treating the reverse of paintings: gel systems and Aquazol 500 pre-impregnated facing pads
Enrica Boschetti

10.30am A comparison between gel and swab cleaning: physical changes to delicate surfaces
Barbara Berrie

10.45am Moving on up: a review of results from SRAL’s tissue-gel composite approach
Gwendoline Fife

11.00am From biomass to restoration: a new green tool for the cleaning of artworks
Giorgia Sciutto

11.10am Question and Answer Session

11.30 – 12.10pm Break

12.10pm Conservation of a white Louise Nevelson installation: gel systems explored
Soraya Alcala

12.40pm The effect of gelling agents and solvents on poly(methyl methacrylate) surfaces: a comparative study
Stefani Kavda

12.55pm Removing iron stains from wood and textile objects: assessing gelled siderophores as novel green chelators
Stavroula Rapti

13.10pm Layer by layer: the removal of complex soiling on a collection of modern art bronzes using buffered pH-adjusted aqueous gels
Shelley M. Smith

13.20am Question and Answer Session

13.35 – 15.00 Lunch Break

15.00pm Gel formulations coupled with mechanical cleaning techniques to remove old overpaint and pigmented coatings on a large altarpiece by Piero di Cosimo
Irma Passeri

15.30pm Time-dependent ATR–FTIR studies on the release of solvents from cleaning gels into model systems of oil paint binding media
Lambert Baij

15.45pm A study of water mobility in hydrogels suitable for biocleaning mural paintings: a unilateral NMR study
Noemi Proietti

16.00pm The case of Capogrossi in Rome: trials and tests using gels for the cleaning of a contemporary wall painting
Paola Mezzadri

16.15pm Gels at the Winterthur/University of Delaware Program in Art Conservation: a retrospective review of student projects, 1978–2016
Matthew Cushman

16.25pm Question and Answer Session 

16.45pm Conclusions

Conference ends 17.15




Agarose gels with methyl ethyl ketone for cleaning a 19th-century document
Beatriz Aguilar Sánchez, Rodrigo Buentello Martínez (INBA and EnCrym, Mexico City)

Treating chromatic alterations on Barkcloth with agar gel
Chiara Arrighi, Maria Francesca Quarato, Luciana Rossi (Museo Nazionale Preistorico Etnografico “Luigi Pigorini”, Rome)

Local cleaning of tidelines on paper using rigid gels: the influence of pH and conductivity
Sophie Barbisan and Anne-Laurence Dupont (Institut national du Patrimoine, Paris)

Chelating soluble iron(II) from iron gall ink using calcium phytate in agar gel
Avery Bazemore

Biocleaning of wall paintings on uneven surfaces with wram agar gels
Bosch-Roig.P, Regidor Ros J.L., Soriano Sancho M.P., Montes Estelles R., Roig Picazo P.

Use of a rigid gel for adhesive removal from an early 20th century poster
María del Pilar Tapia López, Rodrigo Ruiz Herrera, Angélica Vásquez Martínez (ENCRyM-INAH MEXICO)

The removal of lead- and oil-based overpaint from a plaster cast of Hermes Fastening his Sandal
Eliza Doherty (London)

Solvent gel vs. solvent poultice: evaluating two techniques for the removal of pressure-sensitive tape stains from paper
Cecilia Isaksson

Using rigid gellan gel for the stratigraphic cleaning of a canvas painting
Giacomo Maranesi (Fermo, Italy)

The use of agar gel for cleaning and overpaint removal from Romanian ecclesiastical tempera paintings 
Michescu Andreea, Floroiu Anastasia, Ilie Daniela.Cristina, Pavel Rodica, Dudu Valentina, Postolache Dana, Darida Ioan. (University Of Fine Arts Bucharest)

Washing works of art on paper using rigid hydrogels containing chelating agents
Ekaterina Pasnak (University Of Bergen)

An initial assessment of local stain reduction using chelate-containing gellan gum gels in paper conservation
Brook Prestowitz (Conservation Center For Art And Historic Artifacts, Philadelphia)

Getting into the (sea)weeds: the use of rigid agar gels for the cleaning of a birch bark canoe
Cindy Lee Scott (CLS Conservation Services Ltd)

Micro-fragmented agar gels in wall painting conservation: the chapel of Saint Michael in the Royal Monastery of Pedralbes, Barcelona
Rosa Senserrich-Espuñes, Marilena Anzani , Rabbolini Alfiero, Lidia Font-Pagès (University Of Barcelona)

Towards the sustainable use of agar/agarose in conservation: a case study from the Izu Peninsula, Japan
Misa Tamura (University of Glasgow), Koji Takagi



Pemulen emulsions for the removal of overpaint, discoloured remains of lining adhesive, and remnants of older varnish layers on a 17th-century group portrait. 
Marjan de Visser and Lucy Odlin (Den Haag)

Carbopol gel as a carrier for oxidizing agents in discoloured lead white conversion treatments
Lana Linda Fiskovic

From brown to bright: removing several varnish and dirt layers from a 17th-century ceiling painted on wood.
Roos Keppler, Annefloor Schlotter and Johanneke Verhave



Testing a potassium polyacrylate gel for the pretreatment and storage of wet marine iron and organic composite artefacts
V. Argyropoulos, A. Bei, S.C. Boyatzis (Technological Educational Institute , Athens)

The use of Nanorestore gels in teh conservation of lime-based wall paintings
Hanna Eriksson, Ingrid Wedberg, Johanna Nessow and Matilda Dronmark-Thorlund

New gel formulations for removal of adhesive residues and cleaning of paper and parchment 
M. Fagiolo, V. Giunta, C. Mazzuca and S. Orlanducci (University Of Rome)

Poly(vinyl alcohol) – borate gels as carriers of micro-emulsions
Anna Fialová, Petr Kotlík (University of Chemistry and Technology, Prague)

Using a “gel” made from nano-lime and nano-silica to repair badly damaged glass mosaic tesserae

Monica Martelli Castaldi, Marta Ebbreo, Ilaria Liguori, Simon Elio Leitner

Improves PVA gels for hte cleaning of paint surfaces 
Chiara Riedo, Giulia Rollo, Dominique Scalarone, Oscar Chiantore

Trials of agar gels and task-specific salts for the electrochemical reduction of silver sulfide on silver leaf
Joana Sao Joao (University of Lisbon)

Gels for removing varnish and surface stains from Bulgarian icons
Silviya Varadinova-Papadaki

Responsive bio-based gels for the preservation and treatment of archaeological wooden objects
Zarah Walsh-Korb and Luc Averous (University of Strasbourg)


Comparable Studies

The use of gel systems for cleaning water- and solvent-sensitive paintings.
Carmen Ahedo Pino (IPCE-MECD,Madrid)

Releasing St. Peter
Claudia Alejandra Garza and Ramón Avendaño ( Museo Nacional del Virreinato, Mexico)

The removal of Paraloid B-72 coatings with aqueous gelled systems: Roman frescoes from Empúries, Catalonia
Aleix Barberà Giné and Silvia Marín Ortega (Centre De Restauració De Béns Mobles De Catalunya)

Statistical evaluation of surface roughness measurements to evaluate rigid and mouldable hydrogels for cleaning unvarnished oil paint with heavy impasto
Agata Graczyk, Marine Page, Pauline Hélou-de La Grandière and Sigrid Mirabaud

Comparison of three hydrogels for cleaning tarnished silver threads using electrochemical treatment 
Aline Letrange, Emmanuelle Pons, Julie Guerrier, Dominique Hourdet

The removal of dirt and coatings from heavily restored medieval painted ceramis socarrats from València, Spain, using gelled systems
Silvia Marín Ortega Aleix Barberà Giné (Escola Superior De Conservació-Restauració De Béns Culturals De Catalunya)

Paintings on canvas in the rooms of St Aloysius Gonzaga at the Roman College, Rome
Susanna Sarmati (Rome)