Publications and presentations

Scientific publications

Peer-reviewed papers

Abdul Ghafar, Kirsti Parikka, Tuula Sontag-Strohm, Monika Österberg, Maija Tenkanen, Kirsi S. Mikkonen. (2015) Strengthening effect of nanofibrillated cellulose is dependent on enzymatically oxidized polysaccharide gel matrices. European Polymer Journal: Volume 71, pages 171-184
http://dx.doi.org/10.1016/j.eurpolymj.2015.07.046

Dominic Lorenz, Nicole Erasmy, Youssef Akil, Bodo Saake. (2016) A New Method for the Quantification of Monosaccharides, Uronic Acids and Oligosaccharides in partially Hydrolyzed Xylans by HPAEC-UV/VIS. Carbohydrate Polymers: Volume 140, pages 181-187
http://dx.doi.org/10.1016/j.carbpol.2015.12.027

Youssef Akil, Dominic Lorenz, Ralph Lehnen, Bodo Saake. (2016) Safe and non-toxic hydroxyalkylation of xylan using propylene carbonate. European Polymer Journal: Volume 77, pages 88-97
http://dx.doi.org/10.1016/j.eurpolymj.2016.02.010

Janja Stergar, Uroš Maver. (2016) Review of aerogel-based materials in biomedical applications. Journal of Sol-Gel Science and Technology: Volume 77, pages 738-752
http://dx.doi.org/10.1007/s10971-016-3968-5

Nela Buchtová, Tatiana Budtova. (2016) Cellulose aero-, cryo- and xerogels: towards understanding of morphology control. Cellulose: Volume 23, 2585–2595
http://dx.doi.org/10.1007/s10570-016-0960-8

Suvi Alakalhunmaa, Kirsti Parikka, Paavo A. Penttilä, Teresa Cuberes, Stefan Willför, Lennart Salmén, Kirsi S. Mikkonen. (2016) Softwood-based sponge gels. Cellulose: Volume 23, pp 3221–3238
http://dx.doi.org/10.1007/s10570-016-1010-2

Youssef Akil, Ralph Lehnen, Bodo Saake. (2016) Novel synthesis of hydroxyvinylethyl xylan using 4-vinyl-1,3-dioxolan-2-one. Tetrahedron Letters: Volume 57, pages 4200–4202
http://dx.doi.org/10.1016/j.tetlet.2016.08.009

Abdul Ghafar, Pavel Gurikov, Subrahmanyyam Raman, Kirsti Parikka, Maija Tenkanen, Irina Smirnova, Kirsi S. Mikkonen. (2017) Mesoporous guar galactomannan based biocomposite aerogels through enzymatic crosslinking. Composites Part A: Volume 94, pages 93-103
http://dx.doi.org/10.1016/j.compositesa.2016.12.013

Dominic Lorenz, Ron Janzon, Bodo Saake. (2017) Determination of uronic acids and neutral carbohydrates in pulp and biomass by hydrolysis, reductive amination and HPAEC-UV/VIS. Holzforschung:
https://doi.org/10.1515/hf-2017-0020

Jiaqi Guo, Dongfei Liu, Ilari Filpponen, Leena Johansson, Jani Malho, Sakeena Quraishi, Falk Liebner, Hélder Santos, Orlando Rojas. (2017) Hybrids of cellulose nanocrystals and carbon quantum dots as cytocompatible probes for bioimaging. Biomacromolecules: Volume 18, pages 20452055
http://doi.org/10.1021/acs.biomac.7b00306

Abdul Ghafar, Kirsti Parikka, David Haberthür, Maija Tenkanen, Kirsi S. Mikkonen, Jussi-Petteri Suuronen. (2017) Synchrotron microtomography reveals the fine three-dimensional macroporosity of composite polysaccharides aerogels. Materials: Volume 10, pages 871-890
http://doi.org/10.3390/ma10080871

Kirsti Parikka, Ida Nikkilä, Leena Pitkänen, Abdul Ghafar, Tuula Sontag-Strohm, Maija Tenkanen. (2017) Laccase/TEMPO oxidation in the production of mechanically strong arabinoxylan and glucomannan aerogels. Carbohydrate Polymers: Volume 175, pages 377-386
http://doi.org/10.1016/j.carbpol.2017.07.074

Sven Plappert, Jean-Marie Nedelec, Harald Rennhofer, Helga Lichtenegger, Falk  Liebner. (2017) Strain hardening and pore size harmonization by uniaxial densification: A facile approach towards superinsulating aerogels from nematic nanofibrillated 2,3-dicarboxyl cellulose ACS Chemistry of Materials: Volume 29, pages 6630-6641
http://doi.org/10.1021/acs.chemmater.7b00787

Sven Plappert, Falk Liebner. (2017) Cellulose-based photoluminescent nanocomposites. In: S. Peresin, E. Filpponen, T. Nypelö (Eds.). Lignocellulosics: Renewable feedstock for (tailored) functional materials and nanotechnology. Chapter 10, 49 pages. Elsevier. accepted

Youssef Akil, Romain Castellani, Ralph Lehnen, Tatiana Budtova, Bodo Saake. (2017) Hydroxyalkylation of xylan using propylene carbonate: comparison of products from homo- and heterogeneous synthesis by HRMAS NMR and rheology. Cellulose.
https://doi.org/10.1007/s10570-017-1583-4

Dominic Lorenz, Anna Knöpfle, Youssef Akil, Bodo Saake. (2017) Quantitative investigations of xylose and arabinose substituents in hydroxypropylated and hydroxyvinylethylated arabinoxylans. Carbohydrate Polymers: Volume 175, pages 671-678.
https://doi.org/10.1016/j.carbpol.2017.08.034

 

Related papers

Abdul Ghafar, Kirsti Parikka, Tuula Sontag-Strohm, Monika Österberg, Maija Tenkanen, Kirsi S. Mikkonen. (2015) Enzyme-mediated gelation of polysaccharides yields bio-based aerogels. Proceedings of the 18th Gums & Stabilisers for the Food Industry Conference. Glyndwr University, Wrexham, UK. June 23rd-26th 2015.

Suvi Alakalhunmaa, Kirsti Parikka, Paavo A. Penttilä, Teresa M. Cuberes, Stefan Willför, Lennart Salmén, Kirsi S. Mikkonen. (2015) Softwood-based sponge-like composite aerogels. Proceedings of the 10th Biennial Johan Gullichsen Colloquim – New Business Opportunities from Wood: pages 31-34. Wanha Satama, Helsinki, Finland. November 19th 2015.

 

Conference and seminar talks and poster presentations

Kirsti Parikka, Abdul Ghafar, Kirsi S. Mikkonen, Maija Tenkanen. Polysaccharide aerogels by enzymatic crosslinking with galactose oxidase. International Seminar on AEROGELS – 2014. October 6-7, 2014. Hamburg, Germany.

Abdul Ghafar. Three-dimensional imaging of polysaccharide aerogels by synchrotron radiation microtomograph. International Seminar on AEROGELS – 2014. October 6-7, 2014. Hamburg, Germany. (poster)

Cyrielle Rudaz, Arnaud Demilecamps, Nela Buchtova, Richard Bardl, Romain Sescousse, Roxane Gavillon, Tatiana Budtova. Bio-aerogels. GDR Synthons et Matériaux Biosourcés SYMBIOSE. April 8-10, 2015. Nantes, France.

Nela Buchtová, Tatiana Budtova. Highly porous cellulose: aerogels vs cryogels. 249th ACS National Meeting & Exposition. March 22-26, 2015. Denver, CO, United States.

Falk Liebner, Huiqing Wang, Sven Plappert, Sakeena Quraishi, Nicole Pircher, Thomas Rosenau. Photoluminiscent and transparent cellulose-based aerogels and films carrying covalently immobilized core-shell quantum dots. 249th ACS National Meeting & Exposition. March 22-26, 2015. Denver, CO, USA.

Abdul Ghafar, Kirsti Parikka, Tuula Sontag-Strohm, Maija Tenkanen, Kirsi S. Mikkonen. Enzyme-mediated gelation of polysaccharides yields bio-based aerogels. 18th Gums & Stabilisers for the Food Industry Conference. Glyndwr University, Wrexham, UK. June 23-26, 2015.

Nela Buchtová, Christophe Pradille, Lidija Gradišnik, Janja Stergar, Karin Stana Kleinschek, Uroš Maver, Tatiana Budtova. Highly porous cellulose aerogels and cryogels for biomedical applications. Polymer Processing Society Conference (PPS) 2015. September 21-25, 2015. Graz, Austria.

Sakeena Quraishi, Sven Plappert, Philip Taupe, Bernhard Ungerer, Thomas Rosenau, Falk Liebner. Transparent aerogels from liquid-crystalline TEMPO-oxidised nanocellulose reinforced with PMMA and equipped with evenly distributed, covalently immobilized, highly photoluminiscent carbon dots. 18th ISWFPC. September 9-11, 2015. Vienna, Austria.

Sakeena Quraishi, Sven Plappert, Nicole Pircher, Huiqing Wang, Thomas Rosenau, Falk Liebner. Fluorescent BNC/quantum dot aerogels reinforced with biocompatible polymers. 2nd Symposium on Bacterial NanoCellulose. September 9-11, 2015. Gdansk, Poland.

Falk Liebner, Nicole Pircher, A. Russler, E. Haimer, Thomas Rosenau. Tailoring of ultra-lightweight biopolymer-based aerogels for high-performance applications using multiple scCO2 technologies. 11th International Symposium on Supercritical Fluids. October 11-14, 2015. Seoul, South-Korea.

Youssef Akil, Dominic Lorenz, Ralph Lehnen, Bodo Saake. Save and Non-toxic Hydroxyalkylation of Xylan using Propylene Carbonate. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Suvi Alakalhunmaa, Kirsti Parikka, Paavo A. Penttilä, Teresa M. Cuberes, Stefan Willför, Lennart Salmén, Kirsi S. Mikkonen. Preparation and characterization of softwood-based sponge gels. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Nela Buchtová, Christophe Pradille, Jean-Luc Bouvard, Tatiana Budtova. Cellulose aerogels and cryogels: morphology and mechanical properties. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Dominic Lorenz, Youssef Akil, Bodo Saake. Detailed Characterization of Xylans by HPAEC-UV/VIS after Labeling by Anthranilic Acid. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Kirsti Parikka, Abdul Ghafar, Kirsi S. Mikkonen, Maija Tenkanen. Production of polysaccharide aerogels by crosslinking with galactose oxidase –catalyzed oxidation. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Abdul Ghafar. Synchrotron microtomography reveals the three-dimensional morphology of polysaccharide aerogels. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland. (poster)

Nicole Pircher, Sakeena Quraishi, Markus Bacher, Leticia Carbajal, Jean-Marie Nedelec, Harald Rennhofer, Helga Lichtenegger, Thomas Rosenau, Falk Liebner. Impact of selected cellulose solvents on chemical, morphological and mechanical properties of cellulose II aerogels. 4th EPNOE International Polysaccharide Conference. October 19-22, 2015. Warsaw, Poland.

Maija Tenkanen, Abdul Ghafar, Suvi Alakalhunmaa, Kirsti Parikka, Kirsi S. Mikkonen. Aerogels from mannans. 2nd Symposium on Lignin and Hemicellulose Valorisation. November 3-4, 2015. Lund, Sweden.

Sven Plappert, Sakeena Quraishi, Thomas Rosenau, Falk Liebner. 31- Photoluminescence in highly ordered transparent cellulose aerogels imparted by surface-grafted carbon dots. 251st ACS National Meeting. March 13-17, 2016, San Diego, California, USA.

Kirsti Parikka, Ida Nikkilä, Maija Tenkanen. Polysaccharide hydro- and aerogels by chemo-enzymatic oxidation. Nordic Polymer Days/Nordicc Rheology Conference. May 30-June 1, 2016, Helsinki, Finland.

Maija Tenkanen, Abdul Ghafar, Suvi Alakalhunmaa, Kirsi Parikka, Kirsi Mikkonen. Light-weight load-bearing aerogels from plant-derived mannans. XIVth Cell Wall Meeting. June 12-17, 2016, Chania, Crete.

Sven Plappert, Thomas Rosenau, Falk Liebner. Transparent birefringent monolithic aerogels from liquid-crystalline nanofibrillated TEMPO-oxidized cellulose. European Workshop on Lignocellulosic and Pulp. June 28-30, 2016. Grenoble, France. (poster)

Sakeena Quraishi, Sven Plappert, Thomas Rosenau, Falk Liebner. Transparent nematic cellulosic aerogels covalently equipped with carbon dots of high quantum yield: First steps towards true volumetric 3D displays. European Workshop on Lignocellulosic and Pulp. June 28-30, 2016. Grenoble, France. (poster)

Dominic Lorenz, Bodo Saake. Simultaneous determination of monosaccharides, oligosaccharides and uronic acids in partially hydrolyzed pulp and biomass. 14th European Workshop on Lignocellulosics and Pulp. June 28-July 1, 2016, Autrans, France.

Maija Tenkanen, Abdul Ghafar, Ida Nikkilä, Kirsti Parikka, Kirsi Mikkonen. Polysaccharide-derived aerogels by chemo-enzymatic oxidation. OxiZymes 2016. July 3-6, 2016, Wageningen, The Netherlands.

Sven Plappert, Sakeena Quraishi, Thomas Rosenau, Falk Liebner. Transparent aerogels from nematic nanofibrillated carboxyl celluloses covalently equipped with carbon dots of high quantum yield: First steps towards bio-based true volumetric 3D displays. Advances in Functional Materials. August 11-18, 2016. Jeju Island, South-Korea.

Nela Buchtova, Tatiana Budtova. Highly porous cellulose: towards morphology control. From Nano to Macrostructures. Design and Characterization of Soft Materials. August 24-26, 2016, Strömstad, Sweden.

Falk Liebner, Sven Plappert, Sakeena Quraishi, Thomas Rosenau. First steps towards bio-based true volumetric 3D displays: Transparent liquid-crystalline cellulose aerogels equipped with carbon dots of high quantum yield. Keynote Lecture. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Nela Buchtova, Tatiana Budtova. Cellulose aerogels and cryogels: structure-properties correlations. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Sonja Kekäläinen, Mari Lehtonen, Kirsi S. MikkonenHexanal-releasing polysaccharide aerogels for extending the shelflife of fruit. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Abdul Ghafar, Pavel Gurikov, Kirsti Parikka, Maija Tenkanen, Irina Smirnova, Kirsi S. Mikkonen. Solvent compatibility for hydro- to aerogel pathway of guar galactomannan. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Sakeena Quraishi, Sven Plappert, Ana Requejo Silva, Maryem Rezki, Thomas Rosenau, Falk Liebner. Preparation of monolithic, stiff and transparent aerogels from solutions of 2,3-dialdehyde cellulose in non-derivatizing ionic liquids. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Sven Plappert, Jean-Marie Nedelec, Falk Liebner. 2,3-Dicarboxyl nano cellulose: a novel source material for transparent birefringent aerogels. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France.

Jose Martin Ramos-Diaz, Tatiana Budtova, Kirsti Parikka, Kirsi Mikkonen, Maija Tenkanen. Tannic acid crosslinking enables formation of birch xylan-NFC -based hydrogels and aerogel materials. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France. (poster)

Kirsti Parikka, Ida Nikkilä, Maija Tenkanen. Chemo-enzymatic oxidation in the production of polysaccharide cryogels. International Seminar on AEROGELS – 2016. September 22-23, 2016. Sophia Antipolis, France. (poster)

Falk Liebner, Sven Plappert, Sakeena Quraishi, Thomas Rosenau. First steps towards bio-based static true volumetric 3D displays: Transparent cellulose scaffolds equipped with photon upconverting rare earth metal doped nanophosphors (uc-NP). 253rd ACS National Meeting. April 2-6, 2017. San Francisco, CA, USA.

Sven Plappert, Jean-Marie Nedelec, Falk Liebner. 2,3-Dicarboxyl nano cellulose: a novel source material for transparent birefringent aerogels. 253rd ACS National Meeting. April 2-6, 2017, San Francisco, CA, USA.

Maija Tenkanen. Oxidative enzymes – route to functional polysaccharides. 253rd ACS National Meeting. April 2-6, 2017. San Francisco, CA, USA.

Sakeena Quraishi, Sven Plappert, Thomas Rosenau, Falk Liebner. First steps towards bio-based static true volumetric 3D displays: Transparent cellulose scaffolds covalently equipped with photon up-converting NaYF4:Er,Yb nanocrystals. Material Research Society, Spring Meeting & Exposition. April 17-21, 2017. Phoenix, AZ, USA.

Maija Tenkanen. Enzymatic oxidation enable prodiction of novel light-weight polysaccahride aerogels. 12th CBM. April 23-26, 2017. Vienna, Austria.

Kirsti Parikka, Ida Nikkilä, Leena Pitkänen, Abdul Ghafar, Tuula Sontag-Strohm, Maija Tenkanen. Polysaccharide aerogels by TEMPO/laccase -mediated oxidation. 19th Eurocarb. July 2-6, 2017. Barcelona, Spain. (poster)

Maija Tenkanen. Making aerogels from hemicelluloses. 5th EPNOE International Polysaccharide Conference. August 20-24, 2017. Jena, Germany.

Youssef Akil. Cyclic organic carbonates as hydroxyalkylating reagents for the formation of sophisticated materials from xylan. 5th EPNOE International Polysaccharide Conference. August 20-24, 2017. Jena, Germany.

Falk Liebner, Sven Plappert, Sakeena Quraishi. Transparent nf-2,3-dicarboxyl cellulose aerogels equipped with up-converting lanthanide-doped cubic NaYF4 nanocrystals: New developments towards bio-based true volumetric displays. 19th International Symposium on Wood, Fiber and Pulping Chemistry. August 30 September 1, 2017. Porto Seguro, Brazil.

Falk Liebner, Sven Plappert, Jean-Marie Nedelec, Harald Rennhofer, Helga Lichtenegger. Strain hardening and pore size harmonization by uniaxial densification: A facile approach towards thermal superinsulating cellulosic aerogels. 19th International Symposium on Wood, Fiber and Pulping Chemistry. August 30 September 1, 2017. Porto Seguro, Brazil. (poster)

Theses

Bojana Gracanac (2015). Polysaccharide-based aerogels as water absorbent and oxygen scavenger in meat packaging. Master thesis, University of Helsinki, EKT Series 1705.
https://helda.helsinki.fi/handle/10138/157467

Ida Nikkilä (2017). Uudentyyppiset polysakkaridipohjaiset hydro- ja aerogeelit TEMPO/lakkaasi -katalysoidulla hapetuksella. Master thesis, University of Helsinki, EKT Series 1777.
https://helda.helsinki.fi/handle/10138/178546

Abdul Ghafar (2018). Novel functional materials from upgraded biopolymers: polysaccharide aerogels. Doctoral thesis, University of Helsinki.
http://urn.fi/URN:ISBN:978-951-51-4062-3