Pub Date : 2022-01-02DOI: 10.1080/1358314x.2022.2093457
W. Piecek
{"title":"Obituary Prof. Józef żmija","authors":"W. Piecek","doi":"10.1080/1358314x.2022.2093457","DOIUrl":"https://doi.org/10.1080/1358314x.2022.2093457","url":null,"abstract":"","PeriodicalId":18110,"journal":{"name":"Liquid Crystals Today","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42481408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/1358314X.2022.2093458
Christopher Schilling, Pierre Nacke, P. Rybak
The 48 German liquid Crystal Conference took place in the beautiful Franconian city of Würzburg (Germany) between 28 and 30 of March 2022 (Figure 1). This year, the eight sessions were chaired by Prof. Dr. Heiner Detert, Prof. Dr. Sabine Laschat, Prof. Dr. Matthias Lehmann, Prof. Dr. Heinz Kitzerow, Prof. Dr. Tommaso Bellini, Prof. Dr. Matthias Bremer, Prof. Dr. Jan Lagerwall and Prof. Dr. Frank Giesselmann. After a few difficult years of Covid-19 pandemic this year the conference was finally held on-site giving the opportunities for the scientists from around the world to meet again in person and discuss thoroughly their research in various liquid crystal fields. The event was hosted by Prof. Dr. Matthias Lehmann (University of Würzburg) and Prof. Dr. Heiner Detert (University of Mainz) and welcomed by the vicepresident for innovation and knowledge transfer Prof. Dr. Matthias Bode. The group of Lehmann did exceptional work, giving people on site as well as those who could not be on site due to a COVID-19 disease the opportunity to present their work. Due to various security measures, the conference was not held in the Toscana Room as usual. It was moved to the larger AOK auditorium at Hubland campus to still ensure distancing between the participants. This year, over 60 people (Figure 2) contributed to the conference with 21 oral presentations and 41 posters. A novelty this year were the hybrid poster appetisers. To stimulate the discussion about their poster content, volunteers briefly summarised their poster before the poster session. A total of five scientists were invited to give a talk. The conference opened with a talk by Tommaso Bellini who reported on the liquid crystalline ordering of nucleic acids and its relation to Watson Crick pairing. On the next day the morning session kicked off with a talk by Xiangbing Zheng on ferro and antiferro chirality in columnar and bicontinuous phases. The third speaker Matthias Bremer described the Merck KGaA internal discovery and the bright future of ferroelectric nematic materials. Lydia Sosa Vargas then spoke about the range of applications of self-assembled macromolecular semiconductor materials. Lastly, Dharmendra Pratap Singh summarised his work on Charge Transfer in Supramolecular Systems. Topics of the conference were spread over a broad spectrum and covered all facets of liquid-crystalline research: From the recently discovered ferronematic phase to radical core structures and biosensing in zebra fish. Many contributions provided new insight into the effects of chirality in lyotropic and thermotropic mesogens, ionic and supramolecular liquid crystals and photoactive materials. Furthermore, recent results in the manufacturing of nanoand mesoporous liquid-crystalline composite materials derived from e.g. graphene, silica and chitin were presented. Another focus in research was sustainability by means of reuse of imine-based mesogens and recycling of shrimp shells for nanomaterials. This year the
{"title":"Conference report on the 48th German liquid crystal conference","authors":"Christopher Schilling, Pierre Nacke, P. Rybak","doi":"10.1080/1358314X.2022.2093458","DOIUrl":"https://doi.org/10.1080/1358314X.2022.2093458","url":null,"abstract":"The 48 German liquid Crystal Conference took place in the beautiful Franconian city of Würzburg (Germany) between 28 and 30 of March 2022 (Figure 1). This year, the eight sessions were chaired by Prof. Dr. Heiner Detert, Prof. Dr. Sabine Laschat, Prof. Dr. Matthias Lehmann, Prof. Dr. Heinz Kitzerow, Prof. Dr. Tommaso Bellini, Prof. Dr. Matthias Bremer, Prof. Dr. Jan Lagerwall and Prof. Dr. Frank Giesselmann. After a few difficult years of Covid-19 pandemic this year the conference was finally held on-site giving the opportunities for the scientists from around the world to meet again in person and discuss thoroughly their research in various liquid crystal fields. The event was hosted by Prof. Dr. Matthias Lehmann (University of Würzburg) and Prof. Dr. Heiner Detert (University of Mainz) and welcomed by the vicepresident for innovation and knowledge transfer Prof. Dr. Matthias Bode. The group of Lehmann did exceptional work, giving people on site as well as those who could not be on site due to a COVID-19 disease the opportunity to present their work. Due to various security measures, the conference was not held in the Toscana Room as usual. It was moved to the larger AOK auditorium at Hubland campus to still ensure distancing between the participants. This year, over 60 people (Figure 2) contributed to the conference with 21 oral presentations and 41 posters. A novelty this year were the hybrid poster appetisers. To stimulate the discussion about their poster content, volunteers briefly summarised their poster before the poster session. A total of five scientists were invited to give a talk. The conference opened with a talk by Tommaso Bellini who reported on the liquid crystalline ordering of nucleic acids and its relation to Watson Crick pairing. On the next day the morning session kicked off with a talk by Xiangbing Zheng on ferro and antiferro chirality in columnar and bicontinuous phases. The third speaker Matthias Bremer described the Merck KGaA internal discovery and the bright future of ferroelectric nematic materials. Lydia Sosa Vargas then spoke about the range of applications of self-assembled macromolecular semiconductor materials. Lastly, Dharmendra Pratap Singh summarised his work on Charge Transfer in Supramolecular Systems. Topics of the conference were spread over a broad spectrum and covered all facets of liquid-crystalline research: From the recently discovered ferronematic phase to radical core structures and biosensing in zebra fish. Many contributions provided new insight into the effects of chirality in lyotropic and thermotropic mesogens, ionic and supramolecular liquid crystals and photoactive materials. Furthermore, recent results in the manufacturing of nanoand mesoporous liquid-crystalline composite materials derived from e.g. graphene, silica and chitin were presented. Another focus in research was sustainability by means of reuse of imine-based mesogens and recycling of shrimp shells for nanomaterials. This year the","PeriodicalId":18110,"journal":{"name":"Liquid Crystals Today","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43631295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/1358314x.2022.2094092
Wanhe Jiang
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Pub Date : 2022-01-02DOI: 10.1080/1358314X.2022.2093442
L. De Sio
ABSTRACT The interplay between gold nanoparticles (AuNPs) and liquid crystals (LCs) opens compelling solutions that produce a win-win solution for both classes of materials. AuNPs are successfully utilised to induce a controlled phase change of LCs and, simultaneously, LCs make an active control of the AuNPs optical properties. LC plasmonics generates hybrid materials that could revolutionise next-generation optical and photonic applications in this framework.
{"title":"Liquid crystal plasmonics","authors":"L. De Sio","doi":"10.1080/1358314X.2022.2093442","DOIUrl":"https://doi.org/10.1080/1358314X.2022.2093442","url":null,"abstract":"ABSTRACT The interplay between gold nanoparticles (AuNPs) and liquid crystals (LCs) opens compelling solutions that produce a win-win solution for both classes of materials. AuNPs are successfully utilised to induce a controlled phase change of LCs and, simultaneously, LCs make an active control of the AuNPs optical properties. LC plasmonics generates hybrid materials that could revolutionise next-generation optical and photonic applications in this framework.","PeriodicalId":18110,"journal":{"name":"Liquid Crystals Today","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44451156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-02DOI: 10.1080/1358314X.2022.2093452
P. Kędziora
Prof. Jan Jadżyn, PhD, DSc, was born on the January 13, 1943 in Skorodyńce (now in Ukraine) and died April 5, 2022 at his home in Skórzewo, Poland. He studied at the Faculty of Mathematics, Physics and Chemistry of the Adam Mickiewicz University in Poznan, Poland, and received the master’s degree in 1965. In 1971 prof. Jadżyn defended his doctoral dissertation, in which he analysed the influence of electric permittivity on the hydrogen bond polarity in organic complexes. 1974 he was awarded the postdoctoral degree (habilitation) based on the dissertation „Study of solvation of dipolar molecules in neutral solvents”. Later, in 1986, prof. Jadżyn obtained a professorship in physical sciences. His professional scientific career started 56 years ago in the Department of Dielectrics of the Institute of Physics of the Polish Academy of Sciences in Poznań, when he was appointed to a position as assistant in the Liquid Dielectrics Group. Since 1975 Jan Jadżyn was linked to the Institute of Molecular Physics of the Polish Academy of Sciences in Poznań where he founded the dielectric laboratory and for 26 years (1988–2014) served as Head of the Department of Dielectrics. His research topics were mainly concentrated on the dielectric properties of liquids with hydrogen bonds and mesogenic molecular systems. He was especially interested in the study of properties of extremely diluted solutions of dipolar molecules and pretransitional effects in liquid crystals. For many terms of office Jan was a valued member of the Scientific Council of the Institute of Molecular Physics. He was an active member of the International Liquid Crystal Society (ILCS) and one of the founding members of the very active Polish Liquid Crystal Society (PLCS) and later one of its Honorary Members. Furthermore, Jan was a member of the scientific committees of several European Conferences on Liquid Crystals (ECLC) over the years. During his career Prof Jadżyn was a visitor to many universities and research institutions, among them the Universities of Nancy and of Lille in France, the Catholic University of Leuven in Belgium, the University of Münster in Germany and the Institute of Experimental Physics in Koszyce in Slovakia. In particular, Jan valued the collaboration with scientists of the Institute of Chemistry at the Military University of Technology in Warsaw. Prof Jadżyn was a well-respected and valued teacher by generations of young physicists and a long-time higher education lecturer at the Poznań University of Technology. During his career, Professor Jan Jadżyn has published more than 240 papers, mostly on dielectric studies, in different highly regarded journals of international impact. Selected publications of Professor Jan Jadżyn are given below: * K. Prałat, J. Jadżyn, S. Balanicka, Dielectric properties and molecular structure of amide solutions. 1. N-methylacetamide in carbon tetrachloride, J. Phys. Chem. 87 (1983) 1385–1390 * J. Jadżyn, M. Stockhausen, B. Żywucki. Struct
Jan教授Jadżyn，博士，DSc, 1943年1月13日出生于Skorodyńce(今乌克兰)，2022年4月5日在波兰Skórzewo的家中去世。他曾就读于波兰波兹南Adam Mickiewicz大学数理化学院，并于1965年获得硕士学位。1971年Jadżyn教授为他的博士论文辩护，其中他分析了电介电常数对有机配合物中氢键极性的影响。1974年以论文《偶极分子在中性溶剂中的溶剂化研究》获得博士后学位。后来，在1986年，Jadżyn教授获得了物理科学教授职位。他的专业科学生涯始于56年前，当时他被任命为液体介电组助理，在波兹纳瓦波兰科学院物理研究所介电学系工作。1975年Jan Jadżyn加入波兰科学院分子物理研究所，在那里他建立了介电实验室，并担任了26年(1988-2014)介电系主任。主要研究方向为含氢键液体的介电性质和介生分子体系。他对极稀的偶极分子溶液的性质和液晶的过渡前效应的研究特别感兴趣。在许多任期内，Jan都是分子物理研究所科学委员会的重要成员。他是国际液晶协会(ILCS)的活跃成员，也是非常活跃的波兰液晶协会(PLCS)的创始成员之一，后来成为其荣誉会员之一。此外，Jan多年来一直是几个欧洲液晶会议(ECLC)科学委员会的成员。在他的职业生涯中，Jadżyn教授访问了许多大学和研究机构，其中包括法国的南希大学和里尔大学、比利时的鲁汶天主教大学、德国的梅恩斯特大学和斯洛伐克的科西切实验物理研究所。Jan特别重视与华沙军事技术大学化学研究所的科学家们的合作。Jadżyn教授是一位深受几代年轻物理学家尊敬和重视的老师，也是波兹纳斯工业大学的长期高等教育讲师。在他的职业生涯中，Jan教授Jadżyn在不同的具有国际影响力的知名期刊上发表了240多篇论文，其中大部分是关于电介质研究的。Jan教授Jadżyn的论文如下:* K. Prałat, J. Jadżyn, S. Balanicka，介电性质和酰胺溶液的分子结构。1. n -甲基乙酰胺在四氯化碳中的应用[j]。化学87 (1983)1385-1390 * J. Jadżyn, M. Stockhausen, B. Żywucki。非极性有机介质中氢键对称二烷基脲的结构[j]。* J. Jadżyn, G. Czechowski, R. Douali, C. Legrand。向列相液晶介电弛豫的分子解释。化学，91(1987):754-757。* P. Kędziora, J. Jadżyn, L. Hellemans，非极性介质中线状源化合物的非线性介电特性动力学，物理学报。杨建军，杨建军，李建军，等。双烷基脲在非极性介质中形成的氢键超分子聚合物的介电响应的浓度演化，高分子学报，47 (2014):2464-2470
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Pub Date : 2021-10-02DOI: 10.1080/1358314X.2022.2048974
D. Mistry
ABSTRACT In recent years, the field of liquid crystal elastomers (LCEs) has grown considerably in size. Applications for these materials promise to be imminent, and yet many unknowns still surround some of their fundamental behaviours. In addition, new thermal and mechanical properties are continually being discovered. In this article, I review and summarise the key properties of an acrylate LCE developed during my PhD and compare them to the material from which it was derived – developed by the Uryama group. I highlight our material’s surprising negative Poission’s ratio and templateable properties and explore the possible structural roots of these behaviours.
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