CHIMIA

All three natural polymers of biomass and the monomer platforms derived from them present multiple avenues to develop products from specialty to bulk markets, which could serve as entry points into the industry for bio based sustainable materials. However, several roadblocks still exist in the pathway of technology development of these materials due to challenges related to cost-competitiveness, scalability, performance and sustainability. This review outlines these major technical challenges as four key checkpoints (cost-competitive, scalability, sustainability, performance) to be addressed for successful market entry of a new sustainable material

Ghosh, Arpa

Buser, Remy

Héroguel, Florent

Luterbacher, Jeremy

English

Sustainable Materials: Production Methods and End-of-life Strategies

Lüthi, Hans Peter

Alfred Werner Fund Master’s Student Scholarships: SCS Foundation

Honeyman, Gordon

www.chimia.chISSN 2673-2424 (online) ISSN 0009-4293 (print)International Journal for ChemistryandOfficial Membership Journalof the Swiss Chemical Society (SCS)and its DivisionsDivisionsAnalytical Sciences www.scg.ch/dasFundamental Research www.scg.ch/dfrIndustrial & Applied Chemistry www.scg.ch/diacMedicinal Chemistry & Chemical Biology www.scg.ch/dmccbPolymers, Colloids & Interfaces www.scg.ch/dpciChemical Education www.scg.ch/dceEditorial BoardM. P. Brändle, ZürichL. Gremaud, FribourgG. Harvey, LuzernG. Honeyman, BernC. E. Housecroft, BaselJ. P. Holland, ZurichM. Koller, KönizD. Muri, BaselJ. Stohner, WädenswilAdvisory BoardThe Advisory Board is currently being reformedEditor-in-ChiefProf. Catherine E. HousecroftDepartment of ChemistryUniversity of BaselBPR 1095, Mattenstrasse 22PostfachCH-4002 BaselE-Mail: catherine.housecroft@unibas.chChairpersonDr. Gillian HarveyJohanna-Hodel-Gasse 5CH-6005 LuzernTel.: +41 44 262 65 46E-Mail: tech.editor@chimia.chManaging EditorDr. Manuel KollerFuhrenstrasse 16CH-3098 Schliern b. KönizTel.: +41 31 971 58 48Mobile: +41 79 596 71 02E-Mail: koller_manuel@bluewin.chTechnical EditorDr. Gillian HarveyCHIMIA Technische RedaktionJohanna-Hodel-Gasse 5CH-6005 LuzernTel.: +41 44 262 65 46E-Mail: tech.editor@chimia.chDr. Gordon HoneymanUniversity of BernDepartment of Chemistry, Biochemistry andPharmaceutical SciencesCH-3012 BernE-Mail: tech.editor@chimia.chDesign and Production, Printing and MailingFO-FotorotarGewerbestrasse 18CH-8132 Egg bei ZürichTel.: +41 44 986 35 00E-Mail:info@fo-fotorotar.ch, www.fo-fotorotar.chAdvertisements and CHIMIA-ReportSwiss Chemical SocietyDavid Spichiger, Head OfficeHaus der AkademienLaupenstrasse 7PostfachCH-3001 BernTel.: +41 31 306 92 91E-Mail: info@scg.ch, www.scg.chCopyrightThe copyright of the special topic articles is heldby the author(s). The Swiss Chemical Societyholds the copyright to all other articleswww.scg.chFrequency: MonthlyCHIMIA Subscriptions for Printed IssuesAnnual Personal Subscription 2023Regular subscription CHF 150.–Students (incl. PhD students) CHF 50.–Retired members CHF 80.–For members of the SCS personal subscriptionto CHIMIA is included in the membership fee, seewww.scg.ch/membershipAnnual Institutional Subscription 2023Direct Subcription in Switzerland CHF 250.–Direct Subscription outside Switzerland (incl internatio-nal mail charges) CHF 275.–Single IssuesSingle electronic Issue (incl. tax) US$ 42.–Single printed issue (incl. tax and mail charges)CHF 45.–Member and Subscriber ServicesSwiss Chemical SocietyHaus der AkademienLaupenstrasse 7, PostfachCH-3001 BernTel.: +41 31 306 92 92E-Mail: info@scg.chwww.scg.chIBAN CH8400230230105561600Head Office of the Swiss Chemical SocietyDavid SpichigerSwiss Chemical SocietyHaus der AkademienLaupenstrasse 7PostfachCH-3001 BernTel.: +41 31 306 92 91E-Mail: info@scg.chwww.scg.chAuthorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by the Swiss Chemical Society forlibraries and other users registered with the Copyright Clearance Center (CCC) Transactional Reporting Service, provided that the flat fee of $ 1.00 per copy ispaid directly to the CCC, 21 Congress St., Salem, MA 01970, 0018-019X 83 $ 1.00/0.CHIMIA, a scientific journal for chemistry in the broadest sense covers the interests of a wide and diverse readership. Contributions from all fields of chemistryand related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each de-voted to an area of great current significance.CHIMIA is a platinum Open Access journal operating under the licence CC_BY 4.0 (https://creativecommons.org/licenses/by/4.0/). There are no Article Proces-sing fees for authors of peer-reviewed scientific articles. The authors retain the copyright of their work and allow it to be shared and reused, provided that it iscorrectly cited.The online articles are available at chimia.ch as pdfs.CHIMIA is published 10 times a year and is listed in the most important databases: Current Contents/Physical, Chemical and Earth Sciences, Chemical Abs-tracts, Science Citation Index, Research Alert, Scisearch, Index Chemicus, Chemistry Citation Index, Current Chemical Reactions, Reaction Citation Index, andBiological Abstracts.Associated Society MembersGSASA Swiss Soc. of Public Health and Hospital PharmacistsSACC Swiss Association of Computational ChemistrySSFC Swiss Society for Food ChemistrySGMS Swiss Group for Mass SpectrometryVSN Swiss Association of Science TeachersImpressum CHIMIA 2023, 77, No. 11 721

IMPRESSUM

Spichiger, David

EvEnts CHIMIA 2023,77, No. 12 A907EventsCongresses, Symposia, Lectures, Education CoursesSCS ConferenCeS and SympoSiaSwiss Snow Symposium 2024January 19–21, 2024, Hotel Kristall Sa-phir, Saas-Almagell (VS)The symposium provides an innovativeplatform for young chemists to presenttheir work and to exchange their experi-ence.A well balanced mix between lec-tures, short talks and poster sessions aswell as get-togethers at the hotel bar andsnow fun activities on the slopes guarantee a unique experienceof science and fun.Program Fri, January 19, 202417.30 Arrival in Saas Almagell18.00 Welcome Dinner20.15 Opening Remarks20.30 Dr. Maud Reiter, dsm-firmenich21.15 Prof. Stephan von Reuss, Université de Neuchâtel22.00 Break22.15 2 Contributed Talks:Leonardo Palaferri, University of ZurichÇağrı Özsan, University of Bern22.45 Quiz & NetworkingSat, January 20, 202410.00 Snow activities in Saas Almagell17.45 Dr. Lukas Bäni, Stiftung HFSJG18.30 Dinner20.00 2 Contributed Talks:Ghewa AlSabeh, EPFL & AMIAriana Serban, EPFL Lausanne20.30 Poster Session A21.45 Break22.00 2 Contributed Talks:Emanuel Billeter, Technical University of DenmarkJiangtao Zhang, University of Geneva22.30 Poster Session BSun, January 21, 202410.00 Dr. Vlad Pascanu, Syngenta10.45 Break11.00 Prof. Chan Cao, University of Geneva11.45 2 Contributed Talks:Andres M. Bran, EPFL LausanneStefan Schmid, ETH Zurich12.15 Lunch13.15 Prof. Antonio Togni, ETH Zurich14.00 2 Contributed Talks:Monja Schilling, Gesellschaft Deutscher ChemikerTimur Ashirov, University of Fribourg14.30 Break14.45 Prof. Wendy Lee Queen, EPFL Lausanne15.30 Break16.00 Closing RemarksRegistration is closed.Organizing CommitteePatrick Fritz, University of FribourgTara Forrest, University of GenevaMarie-Désirée Schlemper-Scheidt, University of NeuchâtelJaime Martin Gonzalez, University of ZurichGaetano Geraci, University of BernGhewa Alsabeh, AMI / EPFL LausanneWebsitehttps://sss24.scg.chDMCCB Basel Symposium 2024February 12, 2024, Biozentrum Univer-sity of BaselThis one-day symposium is organized bythe Swiss Chemical Society, DivisionMedicinal Chemistry and Chemical Bi-ology with focus on «Therapeutics byComputational Design: Innovations inDrug Discovery and AI». As we leavebehind the year 2023, heralded as theyear of generative AI with groundbreaking technologies likeChatGPT and Stable Diffusion, our focus is on the road ahead.Join us in looking forward to the emerging trends in drug discov-ery in 2024, driven by state-of-the-art computational methods.Discover howAI is shaping the future of Therapeutics by Compu-tational Design, reshaping the healthcare landscape through thefusion of scientific expertise and technological innovation. Ele-vating this journey is the upcomingDMCCBBasel Symposium in2024. This symposium is dedicated to bringing together expertsin Computational Chemistry, Molecular Modeling, Artificial In-telligence, andMachine Learning in Drug Discovery and Design.The event will spotlight the latest advancements in thesefields and offer a preview of their future potential. With its com-prehensive coverage, the symposium promises to engage bothstudents and seasoned professionals straddling the worlds ofchemistry and biology.Confirmed SpeakersProf. Gerard JP Van Westen, Leiden UniversityDr. Nadine Schneider, NovartisProf.Andrea Volkamer, Universität des SaarlandesDr. Hongming Chen, Guangzhou LaboratoryProf. Patrick Barth, EPFL LausanneDr. Chris Baker, SyngentaRegistration feesSCS Members freeNon-member, Regular Participant CHF 100Non-member, Student CHF 50tCongresses, Sy posia, Lectures, Education CoursesA908 CHIMIA 2023, 77, No. 12 EvEntsSCS Spring Meeting 2024: «Frontiers inHomogeneous Catalysis»June 7, 2024, Biozentrum University ofBaselThe Swiss Chemical Society SpringMeeting is a one-day symposium andprovides a high-quality program withnational and international speakers on acertain topic. The topic of the 2024 sym-posium is «Frontiers in Homogenous Ca-talysis».Homogeneous catalysis is a cornerstone of modern chemis-try, enabling the creation of complex molecules with remarkablecontrol and efficiency. It serves as the silent driving force behindnumerous industrial processes and is essential for today’s pro-duction of fine chemicals and pharmaceuticals that shape ourmodern world. This meeting aims to spotlight novel develop-ments in the realm of homogeneous catalysis by convening lead-ing experts from this field. They will present their findings on awide spectrum of subjects, encompassing late-stage functionali-zation, photocatalysis, and catalytically active oscillators.Confirmed SpeakersProf. Christina White, University of Illinois Urbana-ChampaignProf. Syuzanna Harutyunyan, University of GroningenProf. Ryan Gilmour, University of MünsterRegistration feesSCS Members freeNon-member, Regular Participant CHF 100Non-member, Student CHF 50Deadline for registration is May 26, 2024.Websitehttps://sm24.scg.ch27th ETH Nanoparticles Conference 2024June 10–14, 2024, ETH ZurichThe conference is organized as an on-site conference at the ETH Zurich. Itserves as an interdisciplinary platformfor expert discussions on all aspects ofnanoparticles, freshly emitted from var-ious sources, transformed in ambient air,distributed on local and global scale, ontechnical mitigation aspects, particlelegislation, and impact of particles on health, environment, andclimate.Registration feesRegular four-day pass CHF 400Students four-day pass CHF 300Retired four-day pass CHF 100single day participation CHF 125Deadline for abstract submission is January 19, 2024.ContactDr. Norbert Heeb, Empa DübendorfWebsite: https://npc24.scg.chRegistration24.12.2023 Deadline for abstract submission08.01.2024 Notification of acceptance28.01.2024 Registration deadlineContactDr. Christoph Sager, leadXproWebsitehttps://dmccb24.scg.chCHanalysis 2024April 10–12, 2024, Dorint Hotel Blüem-lisalp, BeatenbergThe goal of this two-day conference se-ries is to stimulate a stronger interactionamong persons working in different are-as of analytical sciences. Scientists fromapplied and fundamental research, fromindustry, education, and regulation arewelcome.Confirmed SpeakersDr. Hanspeter Andres, METASDr. Christoph Meyer, LonzaProf. Götz Schlotterbeck, University of BaselDr. Jens Jacobsen, WatersProf. Fernando Perez-Cruz, Swiss Data Science CenterDr. Andrea Rösch, AgroscopeRegistration will open in January 2024.ContactDr. Davide Bleiner, Empa DübendorfWebsitehttps://cha24.scg.chSCS Conference on Stereochemistry (BürgenstockConference) 2024April 28 – May 5, 2024, BrunnenThe ‘SCS Conference on Stereochemis-try’, better known as ‘Bürgenstock Con-ference’, is an outstanding internationalchemistry meeting of high scientificquality, with an optimal setting for in-tense inter-disciplinary discussion.Stereochemistry is the principle un-derlying our understanding of the pro-cesses of life and the properties of matter at the molecular level.It is a key element not only in all chemical disciplines, but alsoin modern molecular biology, molecular medicine, biophysics,and material design. Accordingly, the ‘Bürgenstock Conference’has grown over the years into a multi-disciplinary conferencewhere frontier science is being discussed. Lectures cover manyareas of chemistry and relevant highlights from neighboring dis-ciplines.Participation is on invitation only. Please contact one of theorganizing committee members if you are interested in joiningthe event.Website: https://bc24.scg.chEvEnts CHIMIA 2023, 77, No. 12 909Confirmed SpeakersProf. Franziska Schönebeg, RWTH AachenProf. David Procter, University of ManchesterProf. Armido Studer, University of MünsterProf. Derek Pratt, University of OttawaProf. Jieping Zhu, EPFL LausanneProf. Laurence Feray, Institut de Chimie RadicalaireProf. Samir Zard, LSO LaboratoryProf. Shunsuke Chiba, Nanyang Technological UniversityDr. Cyril Ollivier, Parisian Institute of Molecular ChemistryProf. John Murphy, University of StrathclydeProf. Chaozhong Li, FluorinelabDr. Emmanuel Lacôte, University of LyonProf. Ilhyong Ryu, National Yang Ming Chiao Tung UniversityAcademic HubProf. Dmitry Katayev, University of BernProf. Yannick Landais, University of BordeauxProf. Hideki Yorimitsu, Kyoto UniversityProf. HongLi Bao, Chinese Academy of SciencesProf. Cristina Nevado, University of ZurichRegistration feesRegular Non-member CHF 200Regular SCS Member CHF 150Student CHF 50Deadline for abstract submission is April 28, 2024.ContactDr. Fabrice Dénès University of BernProf. Philippe Renaud, University of BernWebsitehttps://bsrc24.scg.chnon-SCS ConferenCeS in Switzerland,SCS Supported eventS abroad and onlineeventSBiotechnet Meet-Up 2024: Sustainability in BiotechJanuary 18, 2024, UniS, University of BernBiotechnet members, basic and applied researchers, and industryseeking R&D collaborations are welcome to attend. The eventwill conclude with an IP and technology outlook in sustainablebiotech from the Swiss Federal Institute of Intellectual Property,followed by a networking apéro.Program: In the morning, Biotechnet's thematic platformsand members will present their research and activities, includ-ing how they're addressing sustainability in biotech. In the af-ternoon, we're honoured to welcome keynote speakers who willshare research advances in sustainable biotech and best greenlab practices.Registration: The event is free and registration is required.Website: https://www.eventbrite.ch/e/biotech-net-meet-up-2024-tickets-7379299272778th ECP (“European Chemistry Partnering”) - The first In-dustry Speed Dating EventFebruary 6, 2024, Frankfurt am Main, GermanyAre you ready to push the boundaries of your field, meet ex-citing partners and drive breakthrough innovations? Then you'vecome to the right place – ECP! Immerse yourself in a world ofpossibilities and become part of a pioneering platform that bringsall industries together.SCS Seminar on Flow Chemistry 2024June 13–14, 2024, Villars-sur-GlâneThe SCS Seminars are three-days edu-cation seminars that focus on topics thatare relevant for the Swiss chemical andpharmaceutical industry but are notenough considered during the academiceducation at Universities.The event targets PhD students, Post-docs as well as junior scientists from in-dustry and will be led by senior scientists and designated expertsfrom academia and industry.The seminar will focus on relevant issues of flow chemistrysuch as- Batch to flow- Flow reaction optimization- Safety issues- Scaling up- Reactors and reactor designRegistration fees (incl. accommodation)Regular SCS Member CHF 550Student SCS Member CHF 400Non-member, Regular Participant CHF 650Non-member, Student CHF 550Registration Deadline is May 12, 2024 (The number of partici-pants is limited to 30)ContactDr. Marc-André Müller, SolviasProf. Roger Marti, HEIA FribourgDr. Claudio Battilocchio, Syngenta Crop ProtectionWebsitehttps://flowsem24.scg.chBern Symposium on Radical Chemistry 2024June 27–28, 2024, University of BernRadical chemistry has a long and suc-cessful history in Switzerland withprominent scientists, such as Rolf Schef-fold, Hanns Fischer, and Bernd Giese,who have largely contributed to the de-velopment and the success of radicalchemistry. The spectacular developmentin this field over the last two decades hasprompted us to organize a biannual symposium to regularlyhighlight the latest advances in the domain. The symposium isintended for participants from both academia and industry.The 1stBern-SRC will have an exciting scientific programmethat include 5 plenary lectures, 13 invited lectures and 1 postersession with world-leading speakers focused on modern aspectsof synthetic organic chemistry using free radicals.We hope this congress will be the 1st in a series that willoffer all attendees and participants the opportunity to listen toand interact with some of the most creative researchers workingin the field of radical chemistry. Moreover, Philippe Renaud'sretirement coincides with this event, making it a unique oppor-tunity to celebrate.A910 CHIMIA 2023, 77, No. 12 EvEntsPigmente und Farbstoffe – Geschichte, Herstellung, Chemie,Kunst 2024June 11, 2024, Irchel Campus, University of ZurichWeiterbildung für Lehrerinnen und Lehrer an Maturitätsschulen(UZH Weiterbildung)Was macht Farben farbig? Eine Frage mit mehreren Ant-worten. Diese Weiterbildung befasst sich mit verschiedenenArten der Wechselwirkung von Licht und Materie am Beispielverschiedener Farbstoffe und Oberflächen. Ganz nach demMot-to «Was man nicht bauen kann, hat man noch nicht verstanden»,synthetisieren wir verschiedene Farbstoffe gleich selbst – mine-ralische und molekulare, durch Fällung, durch Erhitzen auf1000°C und durch organische Synthese. Eine Reise durch dieGeschichte grosser Farbstoffe von Ägyptisch Blau zu Schwein-furter Grün und eine Einführung in die Analyse von Gemäldensetzen den Kurs in einen gesellschaftlichen Rahmen.Website: https://www.weiterbildung.uzh.ch/de/wbmat.htmlleCtureS at SwiSS univerSitieSPlease visit either the SCS website or the websites of the depart-ments and institutes as shown below for the latest announcementsand the exact location of the lectures.scg.ch/lecturesEvent announcements at Swiss Universities• EPFL Lausannehttps://memento.epfl.ch/isic/• ETH Zurichhttps://chab.ethz.ch/en/news-and-events/events• University of Baselhttps://chemie.unibas.ch/en/news-and-events/events• University of Bernhttps://www.dcbp.unibe.ch/ueber_uns/aktuelles/seminare• University of Fribourghttps://unifr.ch/chem/en/info/agenda.html• University of Genevahttps://unige.ch/sciences/chimie/en/conferences• University of Neuchâtelhttps://unine.ch/chim• University of Zurichhttps://chem.uzh.ch/en/events/schedule• PSI Villigenhttps://psi.ch/en/science/scientific-events• EMPA Dübendorfhttps://events.empa.ch• Eawag Dübendorfhttps://eawag.ch/en/news-agenda/agendaECP is a unique partnering event that connects people andenables breakthrough solutions to the big challenges of our time:climate, food, health, housing, mobility, energy, consumption,water - to name but a few.SCS members profit from reduces registration fees. Use thepromo code to profit from the discount: 8thECP_Supporter_20https://euchempa.zohobackstage.euLS2 Annual Meeting 2024February 14–15, 2024, University of GenevaThe LS2 Annual Meeting brings together scientists from all na-tions and backgrounds to explore the large spectrum united underthe umbrella of Life Sciences. The Topic of the 2024 edition is“Exploring the Wonders of Life”.Deadline for abstract submisssion (poster and talks) is No-vember 8, 2023Registration is open until January 10, 2024Website: https://annual-meeting.ls2.ch/2024/Central European Conference on Photochemistry, CECP2024February 18–22, 2024, Bad Hofgastein, AustriaThe meeting is intended to bring together scientists from differ-ent European countries in one place to discuss their results. A lotof experience in photochemistry will be present to give every-body the chance for interesting scientific exchange.Topics covered by the meeting:• Organic photochemistry• Inorganic photochemistry• Theoretical photochemistry• Applied photochemistry• Photophysics• Spectroscopy• Kinetics of photochemical reactions• Mechanisms of photochemical reactions• Energy conversion• Ultrafast processesContactsChairman of EPA Austria and Local organizer: Dr. StephanLandgrafSwiss Representative in the Organizing Committee: Prof. PeterStacko, University of ZurichWebsite: http://cecp.atSwiss Biotech Day 2024April 22–23, 2024, Congress Center BaselIn 2024, the Swiss Biotech Day will again offer high-level ex-perts from the life sciences industry the space and the time (oneand a half days) to network, discuss and discover trends in R&D,manufacturing, data management, artificial intelligence and in-novative financing. International biotech delegations can visit the“Global Village” to strengthen their ties with Switzerland as abiotech hub and promote cross-border investments, public-pri-vate partnerships, research and development collaborations andexchange of talent.Website: https://swissbiotechday.ch/9th EuChemS Chemistry Congress 2024June 7–11, 2024, Convention Center DublinThe EuChemS Congresses are noted for their excellent scientificlevel, and have a reputation for giving all the attendees and par-ticipants the opportunity to listen to and interact with some of themost celebrated researchers in the world.Website: https://euchems2024.org

Events: Congresses, Symposia, lectures, Education Courses

Harvey, Gillian

www.chimia.chISSN 2673-2424 (online) ISSN 0009-4293 (print)International Journal for ChemistryandOfficial Membership Journalof the Swiss Chemical Society (SCS)and its DivisionsDivisionsAnalytical Sciences www.scg.ch/dasFundamental Research www.scg.ch/dfrIndustrial & Applied Chemistry www.scg.ch/diacMedicinal Chemistry & Chemical Biology www.scg.ch/dmccbPolymers, Colloids & Interfaces www.scg.ch/dpciChemical Education www.scg.ch/dceEditorial BoardM. P. Brändle, ZürichL. Gremaud, FribourgG. Harvey, LuzernC. E. Housecroft, BaselJ. P. Holland, ZurichM. Koller, KönizD. Muri, BaselJ. Stohner, WädenswilAdvisory BoardThe Advisory Board is currently being reformedEditor-in-ChiefProf. Catherine E. HousecroftDepartment of ChemistryUniversity of BaselBPR 1095, Mattenstrasse 22PostfachCH-4002 BaselE-Mail: catherine.housecroft@unibas.chChairpersonDr. Gillian HarveyJohanna-Hodel-Gasse 5CH-6005 LuzernTel.: +41 44 262 65 46E-Mail: tech.editor@chimia.chManaging EditorDr. Manuel KollerFuhrenstrasse 16CH-3098 Schliern b. KönizTel.: +41 31 971 58 48Mobile: +41 79 596 71 02E-Mail: koller_manuel@bluewin.chTechnical EditorDr. Gillian HarveyCHIMIA Technische RedaktionJohanna-Hodel-Gasse 5CH-6005 LuzernTel.: +41 44 262 65 46E-Mail: tech.editor@chimia.chDesign and Production, Printing and MailingFO-FotorotarGewerbestrasse 18CH-8132 Egg bei ZürichTel.: +41 44 986 35 00E-Mail:info@fo-fotorotar.ch, www.fo-fotorotar.chAdvertisements and CHIMIA-ReportSwiss Chemical SocietyDavid Spichiger, Head OfficeHaus der AkademienLaupenstrasse 7PostfachCH-3001 BernTel.: +41 31 306 92 91E-Mail: info@scg.ch, www.scg.chCopyrightThe copyright of the special topic articles is heldby the author(s). The Swiss Chemical Societyholds the copyright to all other articleswww.scg.chFrequency: MonthlyCHIMIA Subscriptions for Printed IssuesAnnual Personal Subscription 2023Regular subscription CHF 150.–Students (incl. PhD students) CHF 50.–Retired members CHF 80.–For members of the SCS personal subscriptionto CHIMIA is included in the membership fee, seewww.scg.ch/membershipAnnual Institutional Subscription 2023Direct Subcription in Switzerland CHF 250.–Direct Subscription outside Switzerland (incl internatio-nal mail charges) CHF 275.–Single IssuesSingle electronic Issue (incl. tax) US$ 42.–Single printed issue (incl. tax and mail charges)CHF 45.–Member and Subscriber ServicesSwiss Chemical SocietyHaus der AkademienLaupenstrasse 7, PostfachCH-3001 BernTel.: +41 31 306 92 92E-Mail: info@scg.chwww.scg.chIBAN CH8400230230105561600Head Office of the Swiss Chemical SocietyDavid SpichigerSwiss Chemical SocietyHaus der AkademienLaupenstrasse 7PostfachCH-3001 BernTel.: +41 31 306 92 91E-Mail: info@scg.chwww.scg.chAuthorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by the Swiss Chemical Society forlibraries and other users registered with the Copyright Clearance Center (CCC) Transactional Reporting Service, provided that the flat fee of $ 1.00 per copy ispaid directly to the CCC, 21 Congress St., Salem, MA 01970, 0018-019X 83 $ 1.00/0.CHIMIA, a scientific journal for chemistry in the broadest sense covers the interests of a wide and diverse readership. Contributions from all fields of chemistryand related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each de-voted to an area of great current significance.CHIMIA is a platinum Open Access journal operating under the licence CC_BY 4.0 (https://creativecommons.org/licenses/by/4.0/). There are no Article Proces-sing fees for authors of peer-reviewed scientific articles. The authors retain the copyright of their work and allow it to be shared and reused, provided that it iscorrectly cited.The online articles are available at chimia.ch as pdfs.CHIMIA is published 10 times a year and is listed in the most important databases: Current Contents/Physical, Chemical and Earth Sciences, Chemical Abs-tracts, Science Citation Index, Research Alert, Scisearch, Index Chemicus, Chemistry Citation Index, Current Chemical Reactions, Reaction Citation Index, andBiological Abstracts.Associated Society MembersGSASA Swiss Soc. of Public Health and Hospital PharmacistsSACC Swiss Association of Computational ChemistrySSFC Swiss Society for Food ChemistrySGMS Swiss Group for Mass SpectrometryVSN Swiss Association of Science TeachersImpressum CHIMIA 2023, 77, No. 10 720

Impressum

Community News

Wittwer, Céline

PI Sessions

Berton, Cesare

Cieslik, Patrick A.

Liu, Fan

Kichou, Samy

Roth, Dominik

Prytuliak, Stanislav

Klingler, Simon

Genz, Jonas

Nisli, Eda

Holland, Jason P.

620 CHIMIA 2023, 77, No. 9 ColumnsPhosphine Oxide-Functionalized Terthiophene RedoxSystemsDaniel Käch, Aurelio C. Gasser, Lionel Wettstein, Clara Sch-weinzer, and Máté J. Bezdek*Angew. Chem. Int. Ed. 2023, 62, e202304600https://doi.org/10.1002/anie.202304600ETH Zürich, Zurich, SwitzerlandRedox systems based onmain group elements are attractive for var-ious applications, including energy storage, but their long-term sta-bility has been a challenge. The authors demonstrate that phosphineoxide functionalization of terthiophenes enables them to functionas robust two-electron acceptors at very low potentials, expand-ing the parameter space for stable main group redox systems withhigh cell voltages. The researchers synthesized a phosphine oxide-functionalized terthiophene and characterized its redox propertiesusing various techniques. They found that the compound exhibitedreversible two-electron reduction at extreme negative potentials(lower than –2.0 V vs. Fc/Fc+), while retaining high stability. Theelectronic structure of the compound and its reduced forms wereinvestigated using density functional theory calculations. The au-thors also explored the effect of substituents on the terthiophenebackbone to modulate the electrochemical properties. Overall, thisstudy presents a new strategy for designing stable main group re-dox systems with high cell voltages, which could have significantimplications for the development of next-generation energy storagedevices and other organic electronics applications.Authors’ comments:“Oligothiophenes are among the most well-investigated structuralmotifs in organic electronics yet remain underutilized in energystorage due to their redox instability. Unlocking terthiophene re-dox chemistry by phosphine oxide functionalization opens newparameter space for molecular energy storage media.”A locally activatable sensor for robust quantificationof organellar glutathioneSarah Emmert, Gianluca Quargnali, Sebastian Thallmair, andPablo Rivera-Fuentes*Nat. Chem. 2023https://doi.org/10.1038/s41557-023-01249-3Institute of Chemical Sciences and Engineering, EPFL, Lausanne,Switzerland; Department of Chemistry, University of Zurich,Zurich, Switzerland; Frankfurt Institute for Advanced Studies,Frankfurt am Main, GermanyA new glutathione (GSH)-sensing platform called TRaQ-G hasbeen developed for live-cell imaging, allowing for a detailed un-derstanding of intracellular GSH homeostasis. This platform en-ables mapping of GSH compartmentalization and intra-organellefluctuations. TRaQ-G is a chemogenetic sensor based on a siliconrhodamine-HaloTag conjugate. The sensor selectively respondsto GSH in specific locations due to its unique reactivity turn-onmechanism. It can be combined with a fluorescent protein, re-sulting in a ratiometric response. With a TRaQ-G-mGold fusion,the study demonstrates independent regulation of nuclear andcytosolic GSH pools during cell proliferation. When used simul-taneously with a redox-sensitive fluorescent protein, both redoxpotential and GSH concentration could be measured at the sametime in the endoplasmic reticulum. By swapping the fluorescentprotein, a near-infrared, targetable, and quantitative GSH sensorwas created. This advancement offers a powerful tool for inves-tigating GSH dynamics and its involvement in cellular signalingpathways.Authors’ comments:“Glutathione is a key regulator in the context of cellular redoxhomeostasis and stress. We developed a glutathione sensor withsubcellular targetability, robustness and a dynamic read-out forlive-cell imaging.”Prepared by Cesare Berton, Patrick A. Cieslik, Fan Liu, Samy Kichou, Dominik Roth, Stanislav Prytuliak, Simon Klinger, Jonas Genz,Eda Nisli, and Jason P. Holland*Do you want your article to appear in the SWISS SCIENCE CONCENTRATES highlight?Please contact jason.holland@chem.uzh.chSwiss Science ConcentratesA CHIMIA ColumnShort Abstracts of Interesting Recent Publications of Swiss Origindoi:10.2533/chimia.2023.620 Chimia 77 (2023) 620–621 © Swiss Chemical SocietyColumns CHIMIA 2023, 77, No. 9 621Electron diffraction of deeply supercooled waterin no man’s landConstantin R. Krüger, Nathan J. Mowry, Gabriele Bongiovanni,Marcel Drabbels, and Ulrich J. Lorenz*Nat. Commun. 2023, 14, 2812https://doi.org/10.1038/s41467-023-38520-7Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne,SwitzerlandIn this paper, the authors aimed to characterize water systemati-cally in the deeply supercooled regime to understand its anoma-lous properties. Previous studies have been limited by the rapidcrystallization of water between 160K and 232K, referred to as‘no man’s land’. To overcome this challenge, the authors presentan experimental approach that involves rapidly preparing deeplysupercooled water at a well-defined temperature and probingit with electron diffraction before crystallization occurs. Theirexperiments show that as water is cooled, its structure evolvessmoothly and approaches that of amorphous ice below 200K.This experimental approach narrows down the possible explana-tions for the origin of water anomalies and opens new avenuesfor studying supercooled water. Additionally, there is potentialapplication of their approach in investigating the dynamics of su-percooled water and its relevance to cryo-electron microscopy instructural biology.Authors’ comments:“We believe that our method for rapidly preparing water in noman’s land and probing it before crystallization sets in shouldbe quite general. We hope that this will enable others to use ourapproach to study deeply supercooled water with a variety ofprobes.”Seeking Brightness in Molecular Erbium-Based LightUpconversionInès Taarit, Filipe Alves, Amina Benchohra, Laure Guénée, Bah-man Golesorkhi, Arnulf Rosspeintner, Alexandre Fürstenberg,and Claude Piguet*J. Am. Chem. Soc. 2023, 145, 8621https://doi.org/10.1021/jacs.3c01331University of Geneva, Geneva, SwitzerlandNear-infrared (NIR) to visible light upconversion is an impor-tant phenomenon in the development of deeply penetratingbiological probes and optical limiting devices. It relies eitheron the nonlinear optical properties of materials or the succes-sive absorption of several photons. The latter occurs via twomechanisms: excited-state absorption (ESA) and energy trans-fer upconversion (ETU). In this work, the authors developeda compact erbium binding ligand that carries a sulfur bridgebetween the dye and the chelating moiety, thus forming stablecomplexes capable of efficient ETU. Detailed photophysicalstudies show an unprecedented conversion efficiency of thenear-infrared (801 nm) into visible green (525–545 nm) light.These discoveries could lead to the development of the novelbiological probes and NIR-sensitive photocatalysts.Authors’ comments:“Shifting from difficult-to-reproduce doped solid-state materialstoward stable and well-defined single molecular entities opensremarkable perspectives for pushing linear upconversion withinthe frame of innovative optical applications.”1.5 2 2.5 3Momentum transfer q (Å-1)115 K295 KDiffraction patternsof water inno man’s landNo man’s land

Swiss Science Concentrates

Martin, Benjamin

Ladosz, Agnieszka

Battilocchio, Claudio

Flow Chemistry Highlights: Selected Topic: An Interview with Ben Martin from Novartis, Basel

The Ilmac industry event at the important location in Basel is the largest meeting place for the chemical and life science industry in Switzerland

CHIMIA RepoRt/Company news CHIMIA 2023, 77, No. 5 A371The Ilmac industry event at the important location inBasel is the largest meeting place for the chemicaland life science industry in Switzerland.Ilmac has its origins in the Swiss trade fair for internation-al laboratory, measurement technology and automation inchemistry, which has been taking place since 1959. Today, thechemical and life science brand connects the industry bothphysically and digitally.With the performance promise “Inspiring the Future of Chemistryand Life Sciences”, the event encourages the development of newideas and solutions and presents trends and innovations by researchand industry in important locations such as Basel and Lausanne.SCS at IlmacThe SCS, as the initial founder of the fair, is partneringwithMesseSchweiz and coordinates the collaboration with society partnersand the Universities of Applies Sciences. The SCS and its partnersocieties, Schweizerischer Verband Diplomierter Chemiker FH(SVC) and Swiss BiotechAssociation (SBA), are also the officialorganizer of the Ilmac Conference.SCS Booth and its PartnersMeet the SCS and its partners at the booth next to the Ilmac Con-ference. The SCS bar offers a unique platform for networkingwith coffee in the morning, lunch for the Ilmac Conference par-ticipants and aperitifs after the lectures. Don’t miss to visit us.Ilmac 365 AppWith the official Ilmac 365 app, you always have the communitynetwork digitally with you.Your benefits• You will find all important information about the Ilmac indus-try events in the Ilmac 365 app: interactive site plan, lectureprogram, exhibitor directory, event highlights and much more.• Get a quick overview of the industry event site with the inter-active hall plan.• Dates and presentations can be saved in the official Ilmac 365app and thus be reminded in time via push message to attend.Ilmac UpdateBasel Exhibition Center, 26 to 28 September 2023 Interested in a contribution? Please contactInspiring the Future of Chemistry and Life Sciences Swiss Chemical Society, info@scg.ch, +41 31 306 92 92Ilmac Conference 2023: Chemical Sciences as Driving Forcesfor a Sustainable FutureChemical sciences and its related technologies are one of themain drivers to reduce the carbon footprint in industrial produc-tion and have a tremendous impact to reach the goal of a “netzero society”. Energy saving, waste reduction or using more sus-tainable raw materials and catalysts are only some examples thatneed to be improve to run a circular economy.Daily Topics of the Ilmac Conference• Day 1, September 26, 2023: Lab Digitalization• Day 2, September 27, 2023: Chemical Technologies• Day 3, September 28, 2023: New Biotech MethodsApply for a Contributed Talk (15 min)We offer a limited number of slots for contributed talks and in-vite interested companies/universities to submit an application.Abstract submission deadline is May 31, 2023, and contributionswill be selected based on the following criteria:• matching the topic of the day• complement to the invited lectures• innovation and marketabilityOrganizing Committee of the Ilmac Conferenceand the Society ActivitiesDr. Fabrice Gallou (Novartis) Dr. Claudio Battilocchio (Syn-genta), Prof. Roger Marti (HEIA Fribourg), Dr. Torsten Luksch(Syngenta), Dr. Michael Altorfer (SBA), Mr. Marc Oliver Bürgi,(SVC/Chemgineering), Mr. David Spichiger and Céline Wittwer,(SCS), Ms. Céline Futterknecht (Messe Schweiz/Ilmac)Registration for ParticipantsRegister for free as participant with the SCS promo code:scs-ilmac23. Registration will open on June 1, 2023.Contact at SCSSwiss Chemical Society, David Spichigerinfo@scg.chwww.scg.ch/ilmac, www.ilmac.ch

Ilmac update: Basel Exhibition Center, 26 to 28 September 2023

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