Laboratory of Multidisciplinary Applied Chemistry

Projektion av forskningsresultat

Nilssons’ research group is a multidisciplinary team with an appetite for science, and our research activities embrace scientists with expertise in organic chemistry, biochemistry molecular biology, neuroscience and material chemistry. Our main focus is the design, synthesis, implementation and evaluation of optoelectronic ligands that via extensive engagement in national and international multidisciplinary collaborations can be utilized as tools for molecular biology, diagnostics and therapeutics, as well as tools for bioelectronics and biotechnology.

Our research spans from organic synthesis and characterization of molecules to exploration of their properties and applications in molecular biology, medicine, bioelectronics and biotechnology. We have a strong interest in finding out how and why the molecules function in relation to their chemical composition, as well as whether our ligands can be utilized to gain novel fundamental insights regarding molecular and pathological events associated with neurodegenerative diseases, such as Alzheimer´s disease, and bacterial infection. Through several collaborations we are also exploring if our optoelectronics can be implemented for a wide range of applications within bioelectronics and biotechnology.

As one of our main goals is to generate tools that in the long run might be beneficial to the society as novel diagnostics and therapeutics for different diseases, we are also actively engaging in collaborations with the health care sector and industry partners.

Members of our research group are also actively involved as teachers in several courses related to organic, pharmaceutical and environmental chemistry. In addition, we also offer projects to students, so if you are interested in doing a bachelor or master thesis within the area of organic, pharmaceutical, medicinal or sustainable chemistry, please contact us for further information.

Our research group is located at the Division of Chemistry at Linköping University.

Group pic for Laboratorium för multidisciplinär tillämpad kemi
 

Research

Research projects

Design and synthesis of optoelectronic ligands

Our aim is to design and synthesize functionally versatile molecules for a wide range of applications. Through molecular design and advanced organic synthesis, we can tailor the compounds to achieve specific properties and functionalities.

The molecules we develop are thiophene-based conjugated systems, characterized by alternating single and double bonds. This conjugation gives rise to intrinsic fluorescence and tunable optical properties. Through chemical modification, such as the introduction of diverse functional groups, heterocycles, chiral moieties or donor-acceptor-donor motifs, we can precisely alter the molecules’ photophysical and electronic properties. By combining synthetic chemistry with molecular design, we aim to enable new applications of thiophene-based conjugated molecules at the interface of medicinal chemistry and materials science.

Tools for Molecular Biology, Diagnostics and Therapeutics

Neuroscience

Aggregated forms of different peptides and proteins are a classical hallmark of many neurodegenerative diseases, such as Alzheimer´s and Parkinson´s disease. Ligands that target these pathological entities are vital, since such agents can be used to reveal the role of these aggregates during the pathogenesis of the diseases, as well as for generating pharmaceutical inventions that can be used for both accurate diagnostic and treatment of these severe diseases. In this regard, we are developing optoelectronic ligands that can be used to detect and distinguish different disease-associated protein aggregates by fluorescence microscopy. These ligands have been a game changer within the field, since several of our ligands have been used to assign protein aggregates that go undetected by conventional ligands, as well as for exploring the shape-shifting polymorphic nature of the protein aggregates during the pathogenesis. Moreover, we are also merging our ligands with agents that can stimulate clearance of disease-associated protein aggreagtes by our bodies’ own cellular machinery or immune system with the aim of generating the next generation of theranostic, combined therapeutic and diagnostic, agents for combating neurodegenerative diseases.

Bacterial Infection

Bacterial biofilms are structured communities of bacteria embedded in a self-produced matrix composed of aggerated proteins and carbohydrates on surfaces (implants, tissues), causing 75-80% of human infections. Bacteria in these communities exhibit more resistance to antibiotics, while also evading the immune system and causing chronic, hard-to-treat infections. Thus, it is vital to develop agents that target the bacteria or the biofilm components both from a diagnostic and therapeutic perspective. In this regard, we have developed optoelectronic ligands that can be utilized to detect different bacteria, as well as distinct biofilm components, by fluorescence spectroscopy and microscopy. In addition, we are also merging these ligands with known agents that can kill the bacteria, or remove the biofilm components, with the aim of generating the next generation of theranostic, combined therapeutic and diagnostic, agents for treating bacterial infections.

Tools for Bioelectronics and Biotechnology

Carbohydrates

By combining our expertise in molecular design and synthesis with our experience in developing tools for molecular biology, diagnostics, and therapeutics, we have also designed optoelectronic molecules for optical tracing of different carbohydrates in plants and wood. These tracers can be utilized to reveal novel findings in plant biology, serve as novel sensing techniques for the pulp industry, and to assign different components in algae and other types of biomasses used to generate new green materials from renewable natural resources.

Chiral Materials

Chiral materials are structures, molecules, or assemblies, that cannot be superimposed on their mirror images. Molecules exhibiting this "handedness" (left- or right-handed) are crucial in biology as living organisms utilize specific chiral forms, such as L-amino acids and D-sugars, for structural organization, metabolism, and molecular recognition. Likewise, in our research, we are designing chiral optoelectronic molecules and self-assembled materials that can be used in optoelectronic devices, such as solar cells or light emitting diodes, as well as in biosensing applications. Thus, by mimicking nature we are generating a novel class of innovative chiral materials with unique optoelectronic and architectonic properties that might be useful for a variety of applications.

News

Peter Nilsson.

Peter Nilsson’s molecules shine a light on Alzheimer’s research

“Even though I’m a professor now, I still spend a lot of time in the lab, as I know that when I’m working hands on, that’s when I get the new ideas,” says Peter Nilsson. He develops tracer molecules that are used in research into Alzheimer’s disease.

Microscopy image of protein aggregates stained green and red with the tracer molecules.

Tracer molecules can distinguish between very similar brain diseases

Two diseases that affect the brain, Parkinson’s disease and multiple system atrophy, show the same characteristics. Scientists have now shown that tracer molecules developed at LiU can distinguish between these diseases.

Microscope image showing wellow and blue staining of irregular shapes.

New method gives hope in understanding Alzheimer’s disease

Scientists are now able to label proteins in the brains of mice who have a disease similar to Alzheimer’s disease. The new method allows the researchers to observe how harmful protein aggregates develop over a longer time period.

Contact

Publications

2025

Seyedehmahsa Mousavi, Therése Klingstedt, David Carrasco-Busturia, Ruben Vidal, Bernardino Ghetti, Mathieu Linares, Patrick Norman, Peter Nilsson (2025) Specific chemical determinants are central for achieving ligands for selective detection of amyloid-ß deposits in Alzheimer's disease Australian journal of chemistry (Print), Vol. 78, Article CH25095 (Article in journal) https://dx.doi.org/10.1071/CH25095
Domenic Burger, Marianna Kashyrina, Lukas Van Den Heuvel, Hortense De La Seigliere, Amanda J. Lewis, Francesco De Nuccio, Inayathulla Mohammed, Jeremy Verchere, Cecile Feuillie, Melanie Berbon, Marie-Laure Arotcarena, Aude Retailleau, Erwan Bezard, Marie-Helene Canron, Wassilios G. Meissner, Antoine Loquet, Luc Bousset, Christel Poujol, Peter Nilsson, Florent Laferriere, Thierry Baron, Dario Domenico Lofrumento, Francesca De Giorgi, Henning Stahlberg, Francois Ichas (2025) Synthetic a-synuclein fibrils replicate in mice causing MSA-like pathology Nature, Vol. 648, p. 409-417 (Article in journal) https://dx.doi.org/10.1038/s41586-025-09698-1
Greta Elovsson, Therése Klingstedt, Peter Nilsson, Ann-Christin Brorsson (2025) Diversity of Aß aggregates produced in a gut-based Drosophila model of Alzheimer's disease PLOS ONE, Vol. 20, Article e0314832 (Article in journal) https://dx.doi.org/10.1371/journal.pone.0314832
Alina E. M. Schmidt, Sophie Steinhagen, Peter Nilsson, Ulrica Edlund, Agneta Richter-Dahlfors (2025) Spatial in situ mapping of cellulose and other biopolymers reveals the 3D tissue architecture in the green algae Ulva fenestrata International Journal of Biological Macromolecules, Vol. 320, Article 145632 (Article in journal) https://dx.doi.org/10.1016/j.ijbiomac.2025.145632
Gunilla T. Westermark, Ebba Nystrom, Sofie Nyström, Peter Nilsson, Per Hammarström, Per Westermark (2025) The question of strains in AA amyloidosis Scientific Reports, Vol. 15, Article 3684 (Article in journal) https://dx.doi.org/10.1038/s41598-025-87239-6
Therése Klingstedt, Hamid Shirani, Farjana Parvin, Sofie Nyström, Per Hammarström, Caroline Graff, Martin Ingelsson, Ruben Vidal, Bernardino Ghetti, Dag Sehlin, Stina Syvanen, Peter Nilsson (2025) Dual-ligand fluorescence microscopy enables chronological and spatial histological assignment of distinct amyloid-b deposits Journal of Biological Chemistry, Vol. 301, Article 108032 (Article in journal) https://dx.doi.org/10.1016/j.jbc.2024.108032
Takahiro Watanabe, Priyanka Swaminathan, Linnea Björk, Ayaka Nakanishi, Hisako Sato, Tamotsu Zako, Peter Nilsson, Mikael Lindgren (2025) Spectroscopic Response of Chiral Proteophenes Binding to Two Chiral Insulin Amyloids ChemPhotoChem, Vol. 9, Article e202400225 (Article in journal) https://dx.doi.org/10.1002/cptc.202400225

2024

Priyanka Swaminathan, Therése Klingstedt, Vasileios Theologidis, Hjalte Gram, Johan Larsson, Lars Hagen, Nina B. Liabakk, Odrun A. Gederaas, Per Hammarström, Peter Nilsson, Nathalie van den Berge, Mikael Lindgren (2024) In Vitro Cell Model Investigation of Alpha-Synuclein Aggregate Morphology Using Spectroscopic Imaging International Journal of Molecular Sciences, Vol. 25, Article 12458 (Article in journal) https://dx.doi.org/10.3390/ijms252212458
Xiongyu Wu, Hamid Shirani, Ruben Vidal, Bernardino Ghetti, Martin Ingelsson, Therése Klingstedt, Peter Nilsson (2024) Distinct Chemical Determinants are Essential for Achieving Ligands for Superior Optical Detection of Specific Amyloid-ß Deposits in Alzheimer's Disease ChemistryOpen, Vol. 13, Article e202400186 (Article in journal) https://dx.doi.org/10.1002/open.202400186
Theodore J. Zwang, Eric del Sastre, Nina Wolf, Nancy Ruiz-Uribe, Benjamin Woost, Zachary Hoglund, Zhanyun Fan, Joshua Bailey, Lois Nfor, Luc Buee, K. Peter R. Nilsson, Bradley T. Hyman, Rachel E. Bennett (2024) Neurofibrillary tangle-bearing neurons have reduced risk of cell death in mice with Alzheimer's pathology Cell Reports, Vol. 43, Article 114574 (Article in journal) https://dx.doi.org/10.1016/j.celrep.2024.114574
Jens Sobek, Junhao Li, Benjamin F. Combes, Juan A. Gerez, Martin T. Henrich, Fanni F. Geibl, Peter R. Nilsson, Kuangyu Shi, Axel Rominger, Wolfgang H. Oertel, Roger M. Nitsch, Agneta Nordberg, Hans Agren, Ruiqing Ni (2024) Efficient characterization of multiple binding sites of small molecule imaging ligands on amyloid-beta, tau and alpha-synuclein European Journal of Nuclear Medicine and Molecular Imaging, Vol. 51, p. 3960-3977 (Article in journal) https://dx.doi.org/10.1007/s00259-024-06806-7
Marco Losa, Marc Emmenegger, Pierre De Rossi, Patrick M. Schürch, Tetiana Serdiuk, Niccolo Pengo, Danaelle Capron, Dimitri Bieli, Niklas Bargenda, Niels J. Rupp, Manfredi C. Carta, Karl J. Frontzek, Veronika Lysenko, Regina R. Reimann, Petra Schwarz, Mario Nuvolone, Gunilla T. Westermark, Peter Nilsson, Magdalini Polymenidou, Alexandre P. A. Theocharides, Simone Hornemann, Paola Picotti, Adriano Aguzzi (2024) The ASC inflammasome adapter governs SAA-derived protein aggregation in inflammatory amyloidosis EMBO Molecular Medicine, Vol. 16, p. 2024-2042 (Article in journal) https://dx.doi.org/10.1038/s44321-024-00107-0
Farjana Parvin, Samuel Haglund, Bettina Wegenast-Braun, Mathias Jucker, Takashi Saito, Takaomi C. Saido, Peter Nilsson, Per Nilsson, Sofie Nyström, Per Hammarström (2024) Divergent Age-Dependent Conformational Rearrangement within Aβ Amyloid Deposits in APP23, APPPS1, and AppNL-F Mice ACS Chemical Neuroscience, Vol. 15, p. 2058-2069 (Article in journal) https://dx.doi.org/10.1021/acschemneuro.4c00104
Therése Klingstedt, Linda Lantz, Hamid Shirani, Junyue Ge, Jörg Hanrieder, Ruben Vidal, Bernardino Ghetti, Peter Nilsson (2024) Thiophene-Based Ligands for Specific Assignment of Distinct Aß Pathologies in Alzheimer's Disease ACS Chemical Neuroscience, Vol. 15, p. 1581-1595 (Article in journal) https://dx.doi.org/10.1021/acschemneuro.4c00021
Greta Elovsson, Therése Klingstedt, Mikaela Brown, Peter Nilsson, Ann-Christin Brorsson (2024) A Novel <i>Drosophila</i> Model of Alzheimer's Disease to Study Aß Proteotoxicity in the Digestive Tract International Journal of Molecular Sciences, Vol. 25, Article 2105 (Article in journal) https://dx.doi.org/10.3390/ijms25042105
Linnea Björk, Robert Selegård, Marcus Bäck, Per Hammarström, Mikael Lindgren, Peter Nilsson (2024) Amino-Acid Side-Chain Nanoarchitectonics for Tuning the Chiroptical Properties and Supramolecular Structure of Pentameric Oligothiophenes ChemPhotoChem, Vol. 8, Article e202300183 (Article in journal) https://dx.doi.org/10.1002/cptc.202300183
Maria Calvo-Rodriguez, Elizabeth K. Kharitonova, Austin C. Snyder, Steven S. Hou, Maria Virtudes Sanchez-Mico, Sudeshna Das, Zhanyun Fan, Hamid Shirani, Peter Nilsson, Alberto Serrano-Pozo, Brian J. Bacskai (2024) Real-time imaging of mitochondrial redox reveals increased mitochondrial oxidative stress associated with amyloid ß aggregates in vivo in a mouse model of Alzheimer's disease Molecular Neurodegeneration, Vol. 19, Article 6 (Article in journal) https://dx.doi.org/10.1186/s13024-024-00702-2
Cristina Nunez-Diaz, Emelie Andersson, Nina Schultz, Dovile Poceviciute, Oskar Hansson, Peter Nilsson, Malin Wennstrom (2024) The fluorescent ligand bTVBT2 reveals increased p-tau uptake by retinal microglia in Alzheimer's disease patients and AppNL-F/NL-F mice Alzheimer's Research & Therapy, Vol. 16, Article 4 (Article in journal) https://dx.doi.org/10.1186/s13195-023-01375-7

2023

Daniel Kirschenbaum, Ehsan Dadgar-Kiani, Francesca Catto, Fabian F. Voigt, Chiara Trevisan, Oliver Bichsel, Hamid Shirani, Peter Nilsson, Karl J. Frontzek, Paolo Paganetti, Fritjof Helmchen, Jin Hyung Lee, Adriano Aguzzi (2023) Whole-brain microscopy reveals distinct temporal and spatial efficacy of anti-A beta therapies EMBO Molecular Medicine, Vol. 15, Article e16789 (Article in journal) https://dx.doi.org/10.15252/emmm.202216789
Ruben Gomez-Gutierrez, Ujjayini Ghosh, Wai-Ming Yau, Nazaret Gamez, Katherine Do, Carlos Kramm, Hamid Shirani, Laura Vegas-Gomez, Jonathan Schulz, Ines Moreno-Gonzalez, Antonia Gutierrez, Peter Nilsson, Robert Tycko, Claudio Soto, Rodrigo Morales (2023) Two structurally defined A & beta; polymorphs promote different pathological changes in susceptible mice EMBO Reports, Vol. 24, Article e57003 (Article in journal) https://dx.doi.org/10.15252/embr.202357003

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