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2024
- Xu Ma, Yucen Han, Yan-Song Zhang, Yong Geng, Apala Majumdar and Jan P. F. Lagerwall, Tunable templating of photonic microparticles via liquid crystal order-guided adsorption of amphiphilic polymers in emulsions, Nature Communications, DOI: 10.1038/s41467-024-45674-5 OPEN ACCESS
- Anjali Sharma, Mitchell Magrini, Yucen Han, David M. Walba, Apala Majumdar, and Jan P. F. Lagerwall, How smectic-A and smectic-C liquid crystals resolve confinement-induced frustration in spherical shells, Soft Matter DOI: 10.1039/D4SM01263A OPEN ACCESS
- Tarik Čamo, Rijeesh Kizhakidathazhath, Jan P. F. Lagerwall, and Danièle Waldmann-Diederich, Optical crack detection and assessment using cholesteric liquid crystal elastomers, Structural Health Monitoring DOI: 10.1177/14759217241296831 OPEN ACCESS
- Yucen Han, Jan P. F. Lagerwall, and Apala Majumdar, Topological defects as nucleation points of the nematic-isotropic phase transition in liquid crystal shells, Physical Review E DOI: 10.1103/PhysRevE.109.064702 OPEN ACCESS
- Venkata S. R. Jampani, Miha Škarabot, Urban Mur, Damien Baigl, Ulrich Jonas, Jan P. F. Lagerwall, Miha Ravnik, and Manos Anyfantakis, Water-Templated Growth of Interfacial Superglue Polymers for Tunable Thin Films and In Situ Fluid Encapsulation, Advanced Materials DOI: 10.1002/adma.202408243 OPEN ACCESS
- Yan-Song Zhang*, Hasan Arif Yetkin*, Hakam Agha, Sevan Gharabeiki, Rijeesh Kizhakidathazhath, Lena Merges, Ricardo G. Poeira, Jan P. F. Lagerwall, and Phillip J. Dale, Arbitrary and active colouring of solar cells with negligible loss of efficiency, Energy & Environmental Science DOI: 10.1039/D4EE03010 OPEN ACCESS
2023
- Hakam Agha, Yan-Song Zhang, Yong Geng and Jan P. F. Lagerwall, Pixelating structural color with Cholesteric Spherical Reflectors, Advanced Photonics Research, DOI: 10.1002/adpr.202200363 OPEN ACCESS
- Anjali Sharma, Rijeesh Kizhakidathazhath and Jan P. F. Lagerwall, Impact of mesogenic aromaticity and cyano termination on the alignment and stability of liquid crystal shells, Soft Matter, DOI: 10.1039/d3sm00041a OPEN ACCESS
- Yong Geng and Jan P. F. Lagerwall, Multiresponsive cylindrically symmetric Cholesteric Liquid Crystal Elastomer fibres templated by tubular confinement, Advanced Science, DOI: 10.1002/advs.202301414 OPEN ACCESS
- Jan P. F. Lagerwall, Liquid crystal elastomer actuators and sensors: Glimpses of the past, the present and perhaps the future, Programmable Materials, DOI:10.1017/pma.2023.8 OPEN ACCESS
- Yong Geng, Camila Honorato-Rios, JungHyun Noh and Jan P. F. Lagerwall, Cholesteric spherical reflectors with tunable color from single-domain cellulose Nanocrystal microshells, Advanced Materials, DOI:10.1002/adma.202305251 OPEN ACCESS
- Jan P. F. Lagerwall, The good, the bad and the ugly faces of cyanobiphenyl mesogens in selected tracks of fundamental and applied liquid crystal research, Liquid Crystals, DOI:10.1080/02678292.2023.2292621 OPEN ACCESS
2022
- Anjali Sharma, Deepak Gupta, Giusy Scalia and Jan P. F. Lagerwall, Lipid islands on liquid crystal shells, Physical Review Research, DOI: 10.1103/PhysRevResearch.4.013130 OPEN ACCESS
- Nikolay Popov and Jan P. F. Lagerwall, Birefringence-modulated total internal reflection in liquid crystal shells, Frontiers in Soft Matter, DOI: 10.3389/frsfm.2022.991375 OPEN ACCESS
- Yong Geng, Rijeesh Kizhakidathazhath and Jan P. F. Lagerwall, Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles, Nature materials, DOI: 10.1038/s41563-022-01355-6 OPEN ACCESS
- Hakam Agha, Yong Geng, Xu Ma, Deniz Işınsu Avşar, Rijeesh Kizhakidathazhath, Yan-Song Zhang, Ali Tourani, Hriday Bavle, Jose-Luis Sanchez-Lopez, Holger Voos, Mathew Schwartz and Jan P. F. Lagerwall, Unclonable human-invisible machine vision markers leveraging the omnidirectional chiral Bragg diffraction of cholesteric spherical reflectors, Light: Science & Applications, DOI: 0.1038/s41377-022-01002-4 OPEN ACCESS
- Najiya Najiya, Nikolay Popov, Venkata Subba Rao Jampani and Jan P. F. Lagerwall, Unclonable continuous flow microfluidic production of arbitrarily long tubular liquid crystal elastomer peristaltic pump actuators, Small, DOI: 10.1002/smll.202204693 OPEN ACCESS
2021
- Lawrence W. Honaker, Anjali Sharma, Andy Schanen and Jan P. F. Lagerwall, Measuring the Anisotropy in Interfacial Tension of Nematic Liquid Crystals, DOI: 10.3390/cryst11060687 OPEN ACCESS
- Mathew Schwartz, Yong Geng, Hakam Agha, Rijeesh Kizhakidathazhath, Danqing Liu, Gabriele Lenzini and Jan P F Lagerwall, Linking physical objects to their digital twins via fiducial markers designed for invisibility to humans, Multifunctional Materials, DOI: 10.1088/2399-7532/ac0060 OPEN ACCESS
- A. Sharma, A. M. Stoffel, and J. P. F. Lagerwall, Liquid crystal elastomer shells with topological defect-defined actuation: Complex shape morphing, opening/closing, and unidirectional rotation, Journal of Applied Physics, DOI: 10.1063/5.0044920 OPEN ACCESS
- Yong Geng, Rijeesh Kizhakidathazhath, and Jan P. F. Lagerwall, Encoding Hidden Information onto Surfaces Using Polymerized Cholesteric Spherical Reflectors, Advanced Functional Materials, DOI: 10.1002/adfm.202100399 OPEN ACCESS
- JungHyun Noh and Jan P. F. Lagerwal, Topological Defect-Guided Regular Stacking of Focal Conic Domains in Hybrid-Aligned Smectic Liquid Crystal Shellsl, Crystals, DOI: 10.3390/cryst11080913 OPEN ACCESS
- Shameek Vats, Manos Anyfantakis, Lawrence W. Honaker, Francesco Basoli and Jan P.F.Lagerwal, Stable Electrospinning of Core-Functionalized Coaxial Fibers Enabled by the Minimum-Energy Interface Given by Partial Core-Sheath Miscibility, Langmuir, DOI: 10.1021/acs.langmuir OPEN ACCESS
- Katrin Schelski, Catherine G. Reyes, Lukas Pschyklenk, Peter-Michael Kaul, Jan P.F. Lagerwall, Quantitative volatile organic compound sensing with liquid crystal core fibers, DOI: 10.1016/j.xcrp.2021.100661 OPEN ACCESS
- Shameek Vats, Lawrence W. Honaker, Margaret W. Frey, Francesco Basoli and Jan P.F. Lagerwall, Electrospinning Ethanol–Water Solutions of Poly(Acrylic Acid): Nonlinear Viscosity Variations and Dynamic Taylor Cone Behavior, DOI: 10.1002/mame.202100640 OPEN ACCESS
- Mathew Schwartz and Jan P. F. Lagerwall, Embedding Intelligence in Materials for Responsive Built Environment using Liquid Crystal Elastomer Actuators and Sensors, https://arxiv.org/abs/2103.11005 OPEN ACCESS
2020
- Camila Honorato-Rios and Jan P. F. Lagerwall, Interrogating helical nanorod self-assembly with fractionated cellulose nanocrystal suspensions, Communications Materials, DOI: 10.1038/s43246-020-00069-z OPEN ACCESS
- JungHyun Noh, Yiwei Wang, Hsin-Ling Liang, Venkata Subba Rao Jampani, Apala Majumdar, and Jan P. F. Lagerwall, Dynamic tuning of the director field in liquid crystal shells using block copolymers, Phys. Rev. Research, DOI: 10.1103/PhysRevResearch.2.033160 OPEN ACCESS
- Manos Anyfantakis, Venkata Subba Rao Jampani, Rijeesh Kizhakidathazhath, Bernard Paul Binks, and Jan Peter Felix Lagerwall. Responsive Photonic Liquid Marbles. Angewandte Chemie., DOI: 10.1002/anie.202008210 OPEN ACCESS
- Catherine Ging Reyes and Jan P. F. Lagerwall. Disruption of electrospinning due to water condensation into the Taylor cone. ACS Appl. Mater. Interfaces., DOI: 10.1021/acsami.0c03338 OPEN ACCESS
- Guillaume. F. Nataf, Mael Guennou, Giusy Scalia, Xavier Moya, Tim D. Wilkinson, and Jan P. F. Lagerwall. High-contrast imaging of 180° ferroelectric domains by optical microscopy using ferroelectric liquid crystals. Appl. Phys. Lett., DOI: 10.1063/5.0008845 OPEN ACCESS
- Christina Schütz, Johanna R. Bruckner, Camila Honorato-Rios, Zornitza Tosheva, Manos Anyfantakis and Jan P. F. Lagerwall. From Equilibrium Liquid Crystal Formation and Kinetic Arrest to Photonic Bandgap Films Using Suspensions of Cellulose Nanocrystals. Crystals., DOI: 10.3390/cryst10030199 OPEN ACCESS
2019
- R. Kizhakidathazhath, Y. Geng, V. S. R. Jampani, C. Charni, A. Sharma, J. P. F. Lagerwall. Facile anisotropic deswelling method for realizing large-area cholesteric liquid crystal elastomers with uniform structural color and broad-range mechanochromic response. Adv. Funct. Mater., DOI: 10.1002/adfm.201909537 OPEN ACCESS
- L. W. Honaker, S. Vats, E. Anyfantakis and, J. P. F. Lagerwall. Elastic Sheath‐Liquid Crystal Core Fibres Achieved by Microfluidic Wet Spinning. J. Matter. Chem. C., DOI: 10.1039/C9TC03836A OPEN ACCESS
- A. Sharma, V. S. R. Jampani, and J. P. F. Lagerwall. Realignment of Liquid Crystal Shells Driven by Temperature‐Dependent Surfactant Solubility. Langmuir, DOI: 10.1021/acs.langmuir.9b00989 OPEN ACCESS
- C. G. Reyes, J. Baller, T. Araki, and J. P. F. Lagerwall. Isotropic‐isotropic phase separation and spinodal decomposition in liquid crystal‐solvent mixtures. Soft Matter, DOI: 10.1039/C9SM00921C OPEN ACCESS
- V. S. R. Jampani, R. H. Volpe, K. Reguengo de Sousa, J. Ferreira Machado, C. M. Yakacki, and J. P. F. Lagerwall. Liquid crystal elastomer shell actuators with negative order parameter. Sci. Adv., DOI: 10.1126/sciadv.aaw2476 OPEN ACCESS
2018
- A. Sharma and J. P. F Lagerwall. Influence of head group and chain length of surfactants used for stabilizing liquid crystal shells. Liquid Crystals, DOI: 10.1080/02678292.2018.1509391 (A Festschrift in honor of the 70th birthday of Claudio Zannoni) 2018
- V. S. R. Jampani, D. J. Mulder, K. R. Sousa, A. H. Gélébart, J. P. F. Lagerwall & A. P. H. J. Schenning. Micrometer‐Scale Porous Buckling Shell Actuators Based on Liquid Crystal Networks. Adv. Funct. Mater. DOI:10.1002/adfm.201801209 OPEN ACCESS
- C. Honorato-Rios, C. Lehr, C. Schütz, R. Sanctuary, M. A. Osipov, J. Baller & J. P. F. Lagerwall. Fractionation of cellulose nanocrystals: enhancing liquid crystal ordering without promoting gelation. NPG Asia Materials. DOI: 10.1038/s41427-018-0046-1 OPEN ACCESS
- M. Schwartz, G. Lenzini, Y. Geng, P. B. Rønne, P. Y. A. Ryan, and J. P. F. Lagerwall. Cholesteric Liquid Crystal Shells as Enabling Material for Information‐Rich Design and Architecture. Adv. Mater. DOI: 10.1002/adma.201707382 OPEN ACCESS
- L. W. Honaker, J. P. F. Lagerwall, and V. S. R. Jampani. Microfluidic Tensiometry Technique for the Characterization of the Interfacial Tension between Immiscible Liquids. Langmuir. DOI: 10.1021/acs.langmuir.7b03494
2017
- M. Urbanski and J. P. F. Lagerwall . Why organically functionalized nanoparticles increase the electrical conductivity of nematic liquid crystal dispersions. J. Mater. Chem. C. DOI: 10.1039/C7TC02856C
- G. Lenzini, S. Ouchani, P. Rønne, P. Y. A. Ryan, Y. Geng, J. Noh, and J. Lagerwall. Security in the Shell : An Optical Physical Unclonable Function made of Shells of Cholesteric Liquid Crystals. Proc. IEEE - 9th Workshop on Information Forensics and Security. DOI: 10.1109/WIFS.2017.8267644
- Y. Geng, J. J.g, K. Noh, J. Noh, J. P. F. Lagerwall, S. Park. Through the Spherical Looking-Glass: Asymmetry Enables Multicolored Internal Reflection in Cholesteric Liquid Crystal Shells. Adv. Optical Materials. DOI: 10.1002/adom.201700923 OPEN ACCESS
- Y. Geng, J. Noh, I. Drevensek-Olenik, R. Rupp, and J. Lagerwall. Elucidating the fine details of cholesteric liquid crystal shell reflection patterns. Liquid Crystals, DOI: 10.1080/02678292.2017.1363916 OPEN ACCESS (A Festschrift in honour of Professor John William Goodby FRS) (Invited)
- M. Urbanski, C. G. Reyes, J. Noh, A. Sharma, Y. Gang, V. S. R. Jampani, J. P.F. Lagerwall. Liquid crystals in micron-scale droplets, shells, and fibers. J. Phys.: Condens. Matter, DOI: 10.1088/1361-648X/aa5706 OPEN ACCESS (Listed as one of IOP Publishing's Highlight Articles of 2017) (Invited)
2016
- J. Noh, B. Henx, J.P.F. Lagerwall. Taming Liquid Crystal Self-Assembly: The Multifaceted Response of Nematic and Smectic Shells to Polymerization. Adv. Materials. DOI: 10.1002/adma.201603158
- M. Ličen, B. Majaron, J. Noh, C. Schütz, L. Bergström, J. Lagerwall, I. Drevenšek-Olenik. Correlation between structural properties and iridescent colors of cellulose nanocrystalline films. Cellulose. DOI: 10.1007/s10570-016-1066-z
- J. Bruckner, A. Kuhnhold, C. Honorato-Rios, T. Schilling and J. P. F. Lagerwall. Enhancing Self-Assembly in Cellulose Nanocrystal Suspensions Using High-Permittivity Solvents. Langmuir. DOI: 10.1021/acs.langmuir.6b02647
- Y. Geng, J. Noh, I. Drevenšek-Olenik, R. Rupp, G. Lenzini and J. P. F. Lagerwall. High-fidelity spherical cholesteric liquid crystal Bragg reflectors generating unclonable patterns for secure authentication. Sci. Rep. DOI: 10.1038/srep26840
- Martin Urbanski and J. P. F. Lagerwall Nanoparticles dispersed in liquid crystals: Impact on conductivity, low-frequency relaxation and electro-optical performance. J. Mater. Chem. C. DOI: 10.1039/C6TC00659K
- J. Noh, K. Reguengo da Sousa and J. P. F. Lagerwall. Influence of interface stabilisers and surrounding aqueous phases on nematic liquid crystal shells. Soft Matter. DOI: 10.1039/C5SM01944C
- C. G. Reyes, A. Sharma and J. P. F. Lagerwall. Non-electronic gas sensors from electrospun mats of liquid crystal core fibers for detecting volatile organic compounds at room temperature. Liquid Crystals, DOI: 10.1080/02678292.2016.1212287 OPEN ACCESS (Special issue to commemorate the 30th anniversary of the journal. 6th of 7 papers short-listed for the Luckhurst-Samulski Prize of 2016.) (Invited)
- C. Honorato-Rios, A. Kuhnold, J. Bruckner, R. Dannert, T. Schilling and J. P. F. Lagerwall. Equilibrium Liquid Crystal Phase Diagrams and Detection of Kinetic Arrest in Cellulose Nanocrystal Suspensions. Frontiers in Materials, DOI:10.3389/fmats.2016.00021 OPEN ACCESS (Special research topic 'Anisotropy in Deformable Biomaterials')
2015
- Y. Kye, C. Kim and J. P. F. Lagerwall. Multifunctional responsive fibers produced by dual liquid crystal core electrospinning. J. Mater. Chem. C. DOI: 10.1039/C5TC01707F
- J. H. Park, K. H. Kim, Y. W. Park, J. P. F. Lagerwall and G. Scalia. Ultra-long ordered nanowires from the concerted self-assembly of discotic liquid crystal and solvent molecules. J. Mater. Chem. C. DOI: 10.1080/02678290110092634
- C. Schütz, M. Agthe, A. B. Fall, K. Gordeyeva, V. Guccini, M. Salajkova, T. S. Plivelic, J. P. F. Lagerwall, G. Salazar-Alvarez, and L. Bergström. Rod Packing in Chiral Nematic Cellulose Nanocrystal Dispersions Studied by Small-Angle X-ray Scattering and Laser Diffraction. Langmuir. DOI: 10.1021/acs.langmuir.5b00924 OPEN ACCESS
2014
- D. K. Kim and J. Lagerwall. Influence of Wetting on Morphology and Core Content in Electrospun Core–Sheath Fibers. ACS Appl. Mater. Interf. DOI: 10.1021/am504961k
- J. Lagerwall, C. Schütz, M. Salajkova, J. Noh, J. H. Park, G. Scalia and L. Bergström. Cellulose nanocrystal-based materials: from liquid crystal self- assembly and glass formation to multifunctional thin films. NPG Asia Materials. DOI: 10.1038/am.2013.69 OPEN ACCESS
- J. Noh, H.-L. Liang, I. Drevensek-Olenik and J. Lagerwall. Tunable Multicolored Patterns From Photonic Cross Communication Between Cholesteric Liquid Crystal Droplets. J. Mater. Chem C. DOI: 10.1039/c3tc32055c UNI.LU REPOSITORY DOWNLOAD
- J. H. Park, J. Noh, C. Schütz, G. Salazar-Alvarez, G. Scalia, L. Bergström, and J. P. F. Lagerwall. Macroscopic control of helix orientation in films dried from cholesteric liquid crystalline cellulose nanocrystal suspensions. ChemPhysChem, DOI:10.1002/cphc.200000055 (Part of a special issue on the 'physical properties and behavior of liquid crystals') 2014 (Invited)
2013
- D. K. Kim, M. Hwang and J. P. F. Lagerwall. Liquid crystal-functionalization of electrospun polymer fibers. J. Polym. Sci. B Polym. Phys., DOI:10.1002/polb.23285 OPEN ACCESS (Perspective article) 2013
- H.-L. Liang, J. Noh, R. Zentel, P. Rudquist and J. P. F. Lagerwall. Tuning the defect configurations in nematic and smectic liquid crystalline shells. Philos. Trans. A, DOI:10.1098/rsta.2012.0258 OPEN ACCESS (Part of a special issue on 'New frontiers in anisotropic fluid—particle composites.')
- G. Scalia, E. Enz, O. Calò, D. Kim, M. Hwang, J. H. Lee, and J. P. F. Lagerwall. Morphology and Core Continuity of Liquid-Crystal-Functionalized, Coaxially Electrospun Fiber Mats Tuned via the Polymer Sheath Solution. Macromol. Mater. Eng., DOI:10.1002/mame.201200361 (Part of a special issue on 'Functional Nanofibers.')
2012
- E. Fleischmann, H.-L. Liang, N. Kapernaum, F. Giesselmann, J. P.F. Lagerwall, and R. Zentel. One-piece micropumps from liquid crystalline core-shell particles. Nat. Commun. DOI: 10.1038/ncomms2193
- Sarah Dolle, B. Lechner, J. H. Park, S. Schymura, J. P. F. Lagerwall and G. Scalia. Utilizing the Krafft phenomenon for achieving ideal micelle-free surfactant-stabilized nanoparticle suspensions. Angewandte Chemie - Int. Ed. DOI: 10.1002/anie.201106793
- H.-L. Liang, R. Zentel, P. Rudquist and J. Lagerwall. Towards tunable defect arrangements in smectic liquid crystal shells utilizing the nematic-smectic transition in hybrid-aligned geometries. Soft Matter. DOI: 10.1039/C2SM07415
- J. P. F. Lagerwall and G. Scalia. A new era for liquid crystal research: Applications of liquid crystals in soft matter nano-, bio- and microtechnology. Curr. Appl. Phys, DOI:10.1016/j.cap.2012.03.019 (Topical Review)
2011
- H. Ocak, B. Bilgin-Eran, M. Prehm, S. Schymura, J. P. F. Lagerwall and C. Tschierske. Effects of chain branching and chirality on liquid crystalline phases of bent-core molecules: blue phases, de Vries transitions and switching of diastereomeric states. Soft Matter. DOI: 10.1039/C1SM05826F UNI.LU REPOSITORY DOWNLOAD
- H.-L. Liang, E. Enz, G. Scalia and J. Lagerwall. Liquid Crystals in Novel Geometries prepared by Microfluidics and Electrospinning. Mol. Cryst. Liq. Cryst. DOI: 10.1080/15421406.2011.581140 UNI.LU REPOSITORY DOWNLOAD
- H.-L. Liang, S. Schymura, P. Rudquist and J. Lagerwall. Nematic-smectic transition under confinement in liquid crystalline colloidal shells. Phys. Rev. Lett. DOI: 10.1039/c0sm01225d UNI.LU REPOSITORY DOWNLOAD
- S. Schymura, S. Dolle, J. Yamamoto and J. Lagerwall. Filament formation in carbon nanotube-doped lyotropic liquid crystals. Soft Matter. DOI: 10.1039/c0sm01225d UNI.LU REPOSITORY DOWNLOAD
2010
- M. Kühnast, C. Tschierske and J. Lagerwall. Tailor-designed polyphilic promotors for stabilizing dispersions of carbon nanotubes in liquid crystals. Chem. Comm. DOI: 10.1039/C0CC02353A UNI.LU REPOSITORY DOWNLOAD
- S. Schymura, M. Kühnast, V. Lutz, S. Jagiella, U. Dettlaff-Weglikowska, S. Roth, F. Giesselmann, C. Tschierske, G. Scalia, and J. Lagerwall Towards Efficient Dispersion of Carbon Nanotubes in Thermotropic Liquid Crystals._Adv. Funct. Mater. DOI: 10.1002/adfm.201000539
- E. Enz and J. Lagerwall. Electrospun microfibres with temperature sensitive iridescence from encapsulated cholesteric liquid crystal. J. Mater. Chem. DOI: 10.1039/c0jm01223h UNI.LU REPOSITORY DOWNLOAD
- P. Morales, J. Lagerwall, P. Vacca, S. Laschat, and G. Scalia. Self-assembled ordered structures in thin films of HAT5 discotic liquid crystal. Beilstein J. Org. Chem. DOI: 10.3762/bjoc.6.51 OPEN ACCESS
- J. P. F. Lagerwall and F. Giesselmann. Complex Chirality at the Nanoscale. ChemPhysChem, DOI:10.1002/cphc.200000055 (Highlight)
2009
- S. Schymura, E. Enz, S. Roth, G. Scalia, J.P.F. Lagerwall. Macroscopic-scale carbon nanotube alignment via self-assembly in lyotropic liquid crystals. Synth. Met. DOI: 10.1016/j.synthmet.2009.08.021 UNI.LU REPOSITORY DOWNLOAD
- U. Dawin, J. P.F. Lagerwall and F. Giesselmann. Electrolyte effects on the stability of nematic and lamellar lyotropic liquid crystal phases. J. Phys. Chem. B. DOI: 10.1021/jp9017772
- E. Enz, S. Findeisen-Tandel, R. Dabrowski, F. Giesselmann, W. Weissflog, U. Baumeister, and J. Lagerwall. On the balance between syn- and anticlinicity in smectic phases formed by achiral hockey-stick mesogens with and without chiral dopants. J. Mater. Chem. DOI: 10.1039/b820717h UNI.LU REPOSITORY DOWNLOAD
- E. Enz, U. Baumeister and J. P. F. Lagerwall. Coaxial electrospinning of liquid crystal-containing poly(vinylpyrrolidone) microfibres. Beilstein J. Org. Chem., DOI:10.3762/bjoc.5.58 OPEN ACCESS (Themed issue on 'Progress in Liquid Crystal Chemistry') (invited)
2008
- J.P.F. Lagerwall, J.T. McCann, E. Formo, G. Scalia, and Y. Xia. Coaxial electrospinning of microfibres with liquid crystal in the core. Chem. Comm. DOI: 10.1039/b810450f UNI.LU REPOSITORY DOWNLOAD
- G. Scalia, C. von Bühler, C. Hägele, S. Roth, F. Giesselmann, and J.P.F. Lagerwall. Spontaneous macroscopic carbon nanotube alignment via colloidal suspension in hexagonal columnar lyotropic liquid crystals. Soft Matter DOI: 10.1039/b715683a UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall and G. Scalia. Carbon nanotubes in liquid crystals. J. Mater. Chem, DOI:10.1039/B802707B UNI.LU REPOSITORY DOWNLOAD (Special issue on 'Liquid Crystals Beyond Display Applications.') (Invited)
- J. P. F. Lagerwall and F. Giesselmann. Current topics in smectic liquid crystal research. ChemPhysChem, DOI:10.1002/cphc.200500472 (Topical Review) (Invited)
2007
- M. V. Gorkunov, M. A. Osipov, J.P.F. Lagerwall and F. Giesselmann. Order-disorder molecular model of the smectic A – smectic C phase transition in materials with conventional and anomalously weak layer contraction._Phys. Rev. E. DOI: 10.1103/PhysRevE.76.051706 UNI.LU REPOSITORY DOWNLOAD
- G. Scalia, J.P.F. Lagerwall, S. Schymura, M. Haluska, F. Giesselmann, and S. Roth. Carbon nanotubes in liquid crystals as versatile functional materials.Phys. Status Solidi B. DOI: 10.1002/pssb.200776205
- M. V. Gorkunov, F. Giesselman, J. P. F. Lagerwall, T. J. Sluckin and M. A. Osipov. Molecular model for de Vries type smectic-A–smectic-C phase transition in liquid crystals. Phys. Rev. E. DOI: 10.1103/PhysRevE.75.060701 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, R. Dabrowski, G. Scalia. Antiferroelectric Liquid Crystals with Induced Intermediate Polar Phases and the Effects of Doping with Carbon Nanotubes. J. Non-Cryst. Solids. DOI: 10.1016/j.jnoncrysol.2007.01.094 UNI.LU REPOSITORY DOWNLOAD
- A. Martyniak, H. Dilger, I. McKenzie, R. Scheuermann, J. P. F. Lagerwall, E. Roduner. Partitioning and reorientational dynamics of phenylalcohols in SDS lyotropic liquid crystalline mesophases: an ALC-µSR study. Colloid Surf. A. DOI: 10.1016/j.colsurfa.2006.10.068
- J. P. F. Lagerwall, G. Scalia, M. Haluska, U. Dettlaff-Weglikowska, S. Roth, F. Giesselmann. Nanotube alignment using lyotropic liquid crystals. Adv. Mater. DOI: 10.1002/adma.200600889
2006
- J. P. F. Lagerwall, G. Scalia, M. Haluska, U. Dettlaff-Weglikowska, F. Giesselmann, S. Roth. Simultaneous alignment and dispersion of carbon nanotubes with lyotropic liquid crystals. Phys. Status Solidi B. DOI: 10.1002/pssb.200669146
- G. Scalia, J. P. F. Lagerwall, M. Haluska, U. Dettlaff-Weglikowska, F. Giesselmann, S. Roth. Effect of phenyl rings in liquid crystal molecules on SWCNTs studied by Raman spectroscopy. Phys. Status Solidi B. DOI: 10.1002/pssb.200669205
- J. P. F. Lagerwall, F. Giesselmann, M. A. Osipov. On the change in helix handedness at transitions between the Sm-C* and Sm-Ca* phases in chiral smectic liquid crystals. Liq. Cryst. DOI: 10.1080/02678290500371392 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, D. Coleman, E. Körblova, C. Jones, R. Shao, J. M. Oton, D. M. Walba, N. A. Clark, F. Giesselmann. The peculiar optic, dielectric and x-ray diffraction properties of a fluorinated de Vries asymmetric-diffuse-cone-model ferroelectric liquid crystal. Liq. Cryst. DOI: 10.1080/02678290500454081 UNI.LU REPOSITORY DOWNLOAD
2005
- J. P. F. Lagerwall, G. Heppke, F. Giesselmann. Frustration between syn- and anticlinicity in mixtures of chiral and non-chiral tilted smectic-C-type liquid crystals. Eur. Phys. J. E. DOI: 10.1140/epje/i2005-10035-5 UNI.LU REPOSITORY DOWNLOAD
- P. K. Mukherjee, J. P. F. Lagerwall, F. Giesselmann. Electrolyte effects on the nematic-isotropic phase transition in lyotropic liquid crystals. Liq. Cryst. DOI: 10.1080/02678290500361963
- J. P. F. Lagerwall, F. Giesselmann, S. Rauch, G. Heppke, P. Rudquist and S. T. Lagerwall. Chiral smectic C subphases induced by mixing a bistereogenic antiferroelectric liquid crystal with a non-chiral liquid crystal. Ferroelectrics. DOI: 10.1080/00150190490510438 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, C. Yates, S. Rauch and G. Heppke. A study of a bistereogenic mesogen for the development of orthoconic antiferroelectric liquid crystal materials. Ferroelectrics. DOI: 10.1080/00150190490510429 UNI.LU REPOSITORY DOWNLOAD
- M. Rössle, L. Braun, D. Schollmeyer, R. Zentel, J. P. F. Lagerwall, F. Giesselmann, R. Stannarius. Differences between smectic homo- and copolysiloxanes as a consequence of microphase separation. Liq. Cryst. DOI: 10.1080/02678290500115724
- J. P. F. Lagerwall. Demonstration of the antiferroelectric aspect of the helical superstructures in Sm-C*, Sm-Cα* and Sm-Ca* liquid crystals. Phys. Rev. E. DOI: 10.1103/PhysRevE.71.051703 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, F. Giesselmann, C. Selbmann, S. Rauch, G. Heppke. Generation of frustrated liquid crystal phases by mixing an achiral n–smc mesogen with an antiferroelectric chiral smectic liquid crystal. J. Chem. Phys. DOI: 10.1063/1.1872753 UNI.LU REPOSITORY DOWNLOAD
2004
- J. P. F. Lagerwall, Frank Giesselmann, Michael D. Wand and David M. Walba. A chameleon chiral polar liquid crystal: rod-shaped when nematic, bent-shaped when smectic. Chem. Mater. DOI: 10.1021/cm035294c
- J. P. F. Lagerwall, A. Kane, N. A. Clark and D. M. Walba. Polarity-directed analog electrooptic switching in a low-polarization chiral smectic liquid crystal with positive dielectric anisotropy. Phys. Rev. E. DOI: 10.1103/PhysRevE.70.031703 UNI.LU REPOSITORY DOWNLOAD
- C. Yates, J. P. F. Lagerwall, M. Nobili, S. Rauch and G. Heppke. (-)-Isopinocampheol substituted mesogens: An investigation of the effect of bulky terminal groups in chiral smectic liquid crystals. Ferroelectrics. DOI: 10.1080/00150190490511220 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, F. Giesselmann, A. Saipa and R. Dabrowski. On the origin of high optical director tilt in a partially fluorinated orthoconic antiferroelectric liquid crystal. Liq. Cryst. DOI: 10.1080/02678290410001732279
- M. Rössle, R. Zentel, J. Lagerwall and F. Giesselmann. Ferroelectric polysiloxane liquid crystals with ’de Vries’-type smectic A* -smectic C* transitions. Liq. Cryst. DOI: 10.1080/02678290410001695668
2003
- J. P. F. Lagerwall, P. Rudquist, S. T. Lagerwall and F. Giesselmann. On the phase sequence of antiferroelectric liquid crystals and its relation to orientational and translational order. Liq. Cryst. DOI: 10.1080/0267829031000069683
2002
- P. Rudquist, J. P. F. Lagerwall, J. G. Meier, K. D’havé and S. T. Lagerwall. Tilt plane orientation in antiferroelectric liquid crystal cells and the origin of the pretransitional effect. Phys. Rev. E. DOI: 10.1103/PhysRevE.66.061708 UNI.LU REPOSITORY DOWNLOAD
- F. Giesselmann, J. P. F. Lagerwall, G. Andersson and M. D. Radcliffe. Antiferroelectric liquid crystal mixture without smectic layer shrinkage at the direct Sm-A* - Sm-Ca * transition. Phys. Rev. E. DOI: 10.1103/PhysRevE.66.051704 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, F. Giesselmann, M. Radcliffe. Optical and X-ray evidence of the de Vries Sm-A*–Sm-C* transition in a non-layer shrinkage ferroelectric liquid crystal with very weak interlayer tilt correlation. Phys. Rev. E. DOI: 10.1103/PhysRevE.66.031703 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, D. D. Parghi, D. Krüerke, F. Gouda, P. Jägemalm. Phases, phase transitions and confinement effects in a series of antiferroelectric liquid crystals. Liq. Cryst. DOI: 10.1080/02678290110092634
- J. Lagerwall, P. Rudquist, S. Lagerwall, B. Stebler. Surface- and Field-Induced AFLC Structures Detected by Dielectric Spectroscopy. Ferroelectrics. DOI: 10.1080/00150190214434 UNI.LU REPOSITORY DOWNLOAD
2000
- P. Jägemalm, J. P. F. Lagerwall, A. Dahlgren, L. Komitov, A. Matharu, C. Grover, F. Gouda, A. A. Kutub. Optic, electrooptic and dielectric properties of novel antiferroelectric liquid crystal compounds. Ferroelectric. DOI: 10.1080/00150190008228425 UNI.LU REPOSITORY DOWNLOAD
- G. Andersson, R. Dabrowski, W. Drzewinski, J. P. F. Lagerwall, M. Matuszczyk, T. Matuszczyk, P. Perkowski and Z. Raszewski. Electrooptic and Dielectric Properties of New Antiferroelectric Liquid Crystal Mixtures. Ferroelectrics. DOI: 10.1080/00150190008228424 UNI.LU REPOSITORY DOWNLOAD
- K. D’havé, A. Dahlgren, P. Rudquist, J. P. F. Lagerwall, G. Andersson, M. Matuszczyk, S. T. Lagerwall, R. Dabrowski and W. Drzewinski. Antiferroelectric liquid crystals with 45° tilt - a new class of promising electro-optic materials. DOI: 10.1080/00150190008228422 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, D. D. Parghi and G. Heppke. On the Coexistence of SmC* and SmCA* Phases in Binary Chiral-Dopant Antiferroelectric Mixtures. Ferroelectrics. DOI: 10.1080/00150190008228432 UNI.LU REPOSITORY DOWNLOAD
- J. P. F. Lagerwall, T. Fütterer, D. Moro and G. Heppke. The Dependence on the Helical Pitch of the Antiferroelectric Dielectric Modes. Ferroelectrics. DOI: 10.1080/00150190008228433 UNI.LU REPOSITORY DOWNLOAD
- F. Gouda, A. A. Kutub, K. Fodor-Csorba, G. Galli, E. Chiellini, L. Komitov, J. P. F. Lagerwall and S. T. Lagerwall. Dielectric Investigations of a Chiral Monomer and Side Chain Polymer. Mol. Cryst. Liq. Cryst. DOI: 10.1080/10587250008023286 UNI.LU REPOSITORY DOWNLOAD
- D. D. Parghi, J. P. F. Lagerwall and G. Heppke. Electrooptic and dielectric spectroscopy measurements of binary chiral-dopant antiferroelectric mixtures. Mol. Cryst. Liq. Cryst. DOI: 10.1080/10587250008023286 UNI.LU REPOSITORY DOWNLOAD
1999
- P. Rudquist, J. P. F. Lagerwall, M. Buivydas, F. Gouda, S. T. Lagerwall, N. A. Clark, J. E. Maclennan, R. F. Shao, D. Coleman, S. Bardon, T. Bellini, D. R. Link, G. Natale, M. A. Glaser, D. M. Walba, M. D. Wand and X. H. Chen. The Case of Thresholdless Antiferroelectricity: Polarization-Stabilized Twisted SmC* Liquid Crystals give V-shaped Electro-Optic Response. J. Mater. Chem. DOI: 10.1039/A900991D UNI.LU REPOSITORY DOWNLOAD
Books & Book Chapters
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- J. P. F. Lagerwall, G. Scalia (Eds.) Liquid Crystals with Nano and Microparticles (In 2 Volumes), World Scientific, 2016 DOI: 10.1142/9280
- J. P. F. Lagerwall. "An Introduction to the Physics of Liquid Crystals" in Fluids, Colloids and Soft Materials: An Introduction to Soft Matter Physics (Ed. A. Fernandez-Nieves), John Wiley & Sons, 2016. DOI: 10.1002/9781119220510.ch16
- J. P. F. Lagerwall and G. Scalia. "Carbon Nanotubes in Liquid Crystals" in Handbook of Liquid Crystals, 2nd edition (Ed.s J. Goodby, H. Gleeson, C. Tschierske, T. Kato, P. Collings and P. Raynes), Wiley VCH, 2014. DOI: 10.1002/9783527671403.hlc091
- J. P. F. Lagerwall. "Liquid Crystal-Functionalized Nano- and Microfibers Produced by Electrospinning" in Liquid Crystals Beyond Displays: Chemistry, Physics, and Applications (Ed. Q. Li), John Wiley & Sons, 2012. DOI: 10.1002/9781118259993.ch7
- T. Lobovkina, A. Jesorka, B. Önfeldt, J. P. F. Lagerwall, P. Dommersnes and O. Orwar. "Soft-Matter Nanotubes: From Materials Science To Biology" in Molecular- and Nano-Tubes ((Eds.) Herausgeber: Hayden, Oliver, Nielsch, Kornelius), Springer, 2011. DOI: 10.1007/978-1-4419-9443-1
- J. P. F. Lagerwall, F. Giesselmann. "The experimental study of phases and phase transitions in antiferroelectric liquid crystals" in Chiral Liquid Crystals (Ed. W. Kuczynski), Polish Academy of Sciences, 2005. ISBN: 83-922875-1-7 OPEN ACCESS
- J. P. F. Lagerwall, F. Giesselmann. "Phase transitions of the ‘de Vries’-type in ferro- and antiferoelectric liquid crystals" in Chiral Liquid Crystals (Ed. W. Kuczynski), Polish Academy of Sciences, 2005. ISBN: 83-922875-1-7
Theses from Group Members
(Open access)
Spinning Functional Fibers: An Interplay of Rheology, Miscibility & Crosslinking Defended 08.10.2021
(Open access)
Liquid Metals & Liquid Crystals Subject to Flow:From Fundamental Fluid Physics to Functional Fibers Defended 11.10.2019
(Open Access)
Self Organising Cellulose Nanorods…(click for full title) Defended 03.05.2019
(Open Access)
Microfluidic Produced Liquid Crystalline Shells: Self-assembled structures in nematic and smectic shells Defended 25.09.2013
(Open Access)
Liquid Crystalline Carbon Nanotube Suspensions: From Unique Challenges to Unique Properties Defended 04.07.2013
(Open access)
Liquid Crystal Shells: from Physics Mysteries, via Chemistry Challenges, to Biosensing Opportunities Defended 28.05.2021
(Open Access)
Confined in a Fiber: Realizing Flexible Gas Sensors by Electrospinning Liquid Crystals Defended 15.02.2019
(Open Access)
Tuning Self-Assembly in Liquid Crystal Shells: From Interfacial to Polymer Stabilization Defended 23.03.2018
(Open Access)
Electrospun Polymer - Liquid Crystal Composite Fibres Defended 17.04.2013
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For Jan's theses, visit his website:
janlagerwall.eu
janlagerwall.eu
PATENTS
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- Microfiber for gas sensing - Issued by the Korean Patent Office. Patent #: 10-2013-0017535.
- Cholesteric liquid crystal based solid shell and production method thereof - Issued by the United States Patent Office. Patent # US11926778B2
