{"title":"Citizen-Science: Katzenvideos für die Forschung","authors":"","doi":"10.1002/ciuz.202510009","DOIUrl":"https://doi.org/10.1002/ciuz.202510009","url":null,"abstract":"","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vorschau auf Heft 6/2025","authors":"","doi":"10.1002/ciuz.202570503","DOIUrl":"https://doi.org/10.1002/ciuz.202570503","url":null,"abstract":"","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ciuz.202570503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rätsel: Die Theorie des Blaumachens?","authors":"Deike Hatscher","doi":"10.1002/ciuz.202500046","DOIUrl":"https://doi.org/10.1002/ciuz.202500046","url":null,"abstract":"<p>Wissen Sie, wie diese Substituenten in der organischen Farbstoffchemie genannt werden, die selbst farblos sind aber durch ihre farbverstärkenden oder antifarbverstärkenden Mesomerieeffekte die Absoptionsverhalten der farbgebenden Strukturen und damit der Farbe von organischen Verbindungen beeinflussen?</p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chemischer Gerüstbau","authors":"","doi":"10.1002/ciuz.202570501","DOIUrl":"https://doi.org/10.1002/ciuz.202570501","url":null,"abstract":"<p><b>Gerüststrukturen</b></p><p>Kristalline Feststoffe mit offenen Gerüststrukturen (englisch „open framework structures“) sind nicht aus sich periodisch wiederholenden Anordnungen von Ionen oder Molekülen aufgebaut, sondern aus dreidimensionalen Netzen (Raumnetzstrukturen). Sie enthalten strukturimmanent offene Hohlräume und Kanäle. Am längsten sind Zeolithe und Cyanometallate (Berliner Blau) bekannt. Das Spektrum an Gerüststrukturen wurde jedoch in den letzten Jahrzehnten durch neue chemische Zusammensetzungen erheblich erweitert, wie etwa den metallorganischen (MOF) oder organischen Gerüststrukturen (COF). Im Fokus dieses Artikels stehen gemeinsame Konstruktionsprinzipien.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ciuz.202570501","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abwehrstrategien: Chemisches Repellent macht Kellerasseln unattraktiv für Fressfeinde","authors":"Doris Fischer-Henningsen","doi":"10.1002/ciuz.202510012","DOIUrl":"https://doi.org/10.1002/ciuz.202510012","url":null,"abstract":"<p>Im evolutionären Wettrüsten zwischen Fressfeind und Beute hat sich ein breites Repertoire an Methoden etabliert, unter anderem setzen Beutetiere oft chemische Abwehrmechanismen ein, um sich zu schützen. Diese Strategie, konkret die Produktion von Abwehrstoffen, war bisher vor allem von Insekten bekannt, nicht jedoch von Krebstieren, obwohl sie nahe phylogenetische Verwandte von Insekten sind. Ein Team von der Universität Greifswald hat nun entdeckt, dass die gewöhnliche Kellerassel einen Chemikalien-Cocktail absondert, sobald sie angegriffen wird.</p>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inhalt: Chemie in unserer Zeit 5/2025","authors":"","doi":"10.1002/ciuz.202570502","DOIUrl":"https://doi.org/10.1002/ciuz.202570502","url":null,"abstract":"","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":"242-243"},"PeriodicalIF":0.6,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Raumnetzstrukturen: Chemischer Gerüstbau","authors":"Ulrich Schubert","doi":"10.1002/ciuz.202400039","DOIUrl":"https://doi.org/10.1002/ciuz.202400039","url":null,"abstract":"<div>\u0000 \u0000 <p>In solids with three-dimensional framework structures, connecting and linking elements are combined by means of directed bonds. Metal ions or metal clusters with coordination numbers > 2 are possible as connectors, in organic framework structures also organic building blocks with a defined spatial arrangement of functional groups. Linkers can be simple inorganic moieties (oxygen in zeolites or aluminophosphates, CN in cyanometallates), but also organic groups of different size and functionality (in zeolitic imidazolates, metal-organic and organic framework structures). The diversity of possible network structures is considerably increased, if both the connectors and linkers are capable of forming more than two linkages. Not only the network topologies are characteristic of framework structures, but also the channel systems resulting from the interconnection of open cavities.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":"250-257"},"PeriodicalIF":0.6,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kleine Partikel, smarte Wirkung: Zielgerichteter Wirkstofftransport mit Nanopartikeln","authors":"Antonia Wallbraun","doi":"10.1002/ciuz.202500005","DOIUrl":"https://doi.org/10.1002/ciuz.202500005","url":null,"abstract":"<div>\u0000 \u0000 <p>In the presented teaching unit, students gain insights into the field of nanomedicine with focus on targeted drug delivery. The introduction is problem-oriented, highlighting the challenges and limitations of conventional systemic drug delivery: severe side effects in non-diseased organs and low therapeutic efficacy at the target site. In contrast, the potential of using nanocarriers in modern medicine is explored, along with the associated opportunities for personalized and precise treatment. Polymers are identified as suitable starting materials for nanoscale plastic particles, based on their known properties. Students independently synthesize the polymer poly(δ -valerolactone) (Pδ VL), started from the monomer δ -valerolactone via a ring-opening polymerization. The focus then shifts to the formulation of nanocarriers, which are designed to encapsulate the cargos, transport within the body, protect from premature degradation, and finally release them at the diseased organ. Using the synthesized polymer Pδ VL as starting material, students produce nanocarriers and load them with the model drug Nile Red. The solvent displacement method involving dropwise addition is applied, and the underlying chemical principles are explained. Finally, the focus is placed on stimulus-responsive release. In a student experiment, pH-dependent release is demonstrated as an example.</p>\u0000 </div>","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 5","pages":"284-288"},"PeriodicalIF":0.6,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inhalt: Chemie in unserer Zeit 4/2025","authors":"","doi":"10.1002/ciuz.202570402","DOIUrl":"https://doi.org/10.1002/ciuz.202570402","url":null,"abstract":"","PeriodicalId":9911,"journal":{"name":"Chemie in Unserer Zeit","volume":"59 4","pages":"182-183"},"PeriodicalIF":0.6,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}