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Modular synthetic routes to biologically active indoles from lignin

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7506-7512
DOI: 10.1039/D5GC01003A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Antonio A. Castillo-Garcia, Jörg Haupenthal, Anna K. H. Hirsch, Katalin Barta
Modular functionalization of a lignin-derived C2-acetal enables the synthesis of bio-based indoles via the formation of ortho-amino acetal derivatives and the in situ Schiff-base formation/intramolecular cyclization under mild reaction conditions.
The content of this RSS Feed (c) The Royal Society of Chemistry

An entropy-driven multi-anionic electrolyte for Li-ion batteries with high voltage stability and superior temperature adaptability

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7704-7716
DOI: 10.1039/D5GC01658D, PaperJia-Zhen Zhao, Fu-Da Yu, Hai-Nan Wang, Ji-Huai Wu, Zhang Lan, Yi-Ming Xie, Lan-Fang Que
An entropy-driven multi-anionic ether electrolyte is designed to alleviate the limited oxidative stability and sluggish ion transport of conventional electrolytes, endowing NCM523 higher capacity and better cycle performance at both 25 and −20 °C.
The content of this RSS Feed (c) The Royal Society of Chemistry

Pore tuning in multivariate Zr/Ce-MOFs utilizing C4 natural linkers through room-temperature synthesis for customized adsorptive separation of gases and vapours

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7642-7651
DOI: 10.1039/D5GC01697E, PaperBochun Zhang, Qingqing Yan, Sujing Wang
Multivariate metal–organic frameworks (MTV-MOFs), inspired by the sequence-controlled organization of natural systems, offer a promising platform for tailoring functional properties through precise structural modularity.
The content of this RSS Feed (c) The Royal Society of Chemistry

Discovery and green metabolic engineering of a self-sufficient genistein pathway in Paenibacillus jilinensis

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7575-7585
DOI: 10.1039/D5GC01323B, PaperJia Bao Zhang, Wei Chen, Yong Jun Yang, Zhen Zhen Liu
Omics-driven, GSMM-guided systems metabolic engineering of Paenibacillus jilinensis boosts native genistein titres 9.3-fold while reducing waste by 92%, establishing a sustainable, plant-free route to isoflavone bioproduction.
The content of this RSS Feed (c) The Royal Society of Chemistry

Design and application of a decatungstate-based ionic liquid photocatalyst for sustainable hydrogen atom transfer reactions

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7660-7666
DOI: 10.1039/D5GC02160J, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Miguel Claros, Julian Quévarec, Sara Fernández-García, Timothy Noël
Decatungstate-based ionic liquid photocatalyst (DT-IL) for sustainable hydrogen atom transfer reactions.
The content of this RSS Feed (c) The Royal Society of Chemistry

Mechanical force inducing oxygen vacancies and pyrolysis gas reduction activity for the efficient valorization of waste biomass and Li-ion batteries

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7918-7927
DOI: 10.1039/D5GC01611H, PaperFengyin Zhou, Beilei Zhang, Hongya Wang, Danfeng Wang, Xin Qu, Shiyu Wang, Mengyi Tang, Ling Peng, Xiang Chen, Dihua Wang, Lawrence Yoon Suk Lee, Huayi Yin
A novel recycling strategy for retired LIBs combines mechanical treatment with biomass pyrolysis reduction, achieving 98% recovery efficiency.
The content of this RSS Feed (c) The Royal Society of Chemistry

Multiscale exploration of the lignin dissolution mechanism based on novel ternary deep eutectic solvents incorporating p-hydroxybenzoic acid

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7843-7862
DOI: 10.1039/D5GC00934K, PaperHanwen Ge, Jiahui Wei, Shenglin Wang, Zexu Yan, Mingzhe Jiang, Lingxiao Zhu, Chao Liu, Bin Li, Caoxing Huang, Huanfei Xu
Novel ternary DES were synthesized by adopting a new strategy in which the synergistic effect of hydrogen bonds, van der Waals interactions and π–π stacking was used to enhance the delignification ability of DES.
The content of this RSS Feed (c) The Royal Society of Chemistry

Transforming polystyrene wastes into aromatic products near ambient temperature with aluminium chloride

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7908-7917
DOI: 10.1039/D5GC02420J, PaperShuying Tian, Jing Dai, Zhengjian Li, Qiqi Wu, Guangxu Chen
A straightforward and efficient approach for recycling polystyrene under mild conditions (40 °C), eliminating the need for an external hydrogen source or noble metal catalysts.
The content of this RSS Feed (c) The Royal Society of Chemistry

eSpiro: A scalable and sustainable electrosynthetic route to spiroketals via anodic oxidation of malonic acids

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7513-7517
DOI: 10.1039/D5GC01767J, CommunicationMarylise Triacca, Carl D. Reens, Hamish Stephen, Kevin Lam
Metal-free, electrochemical synthesis of spiroketals is presented, using anodic oxidation of malonic acids under mild conditions. This sustainable approach enables access to diverse spiroketal frameworks with potential for flow adaptation.
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“On-seawater” accelerated aquacatalysis by edible fatty acids: harnessing the remarkable salting-out effect

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7960-7972
DOI: 10.1039/D5GC01441G, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Soo Bok Kim, Seok Ju Hong, Dong Hyeon Kim, Gang Min Lee, Yujin Lim, Sangkyu Lee, Yongseok Kwon, Han Yong Bae
We report here a sustainable aquacatalytic system utilizing an edible medium-chain fatty acid as a Brønsted acid catalyst, enabling carbonyl allylation under “on-seawater” conditions exploiting the remarkable salting-out effect.
The content of this RSS Feed (c) The Royal Society of Chemistry

Efficient radical-driving electrocatalytic dimerization of furfural to jet fuel precursors using WMoB nanoflakes

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7652-7659
DOI: 10.1039/D5GC01116G, PaperXiaodie Zhang, Bin Liu, Yuchen Wang, Ying Long, Zhenhao Xu, Hua-Tay Lin, Rafael Luque, Kai Yan
Solvent-free synthesis of WMoB nanoflakes toward efficient radical-driving electrocatalytic dimerization of furfural to jet fuel precursor.
The content of this RSS Feed (c) The Royal Society of Chemistry

Carboxyl-functionalized ionic liquids enable green preparation of chitosan-based ionic gel membranes for H2S separation

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7691-7703
DOI: 10.1039/D5GC01785H, PaperPing Zhang, Hao Zhu, Zhuoheng Tu, Xingbang Hu, Youting Wu
Recyclable chitosan-based ionic gel membranes containing carboxyl-functionalized ionic liquids were fabricated for separation of H2S.
The content of this RSS Feed (c) The Royal Society of Chemistry

Microbial synergy between Rhodospirillum rubrum and Acetobacterium woodii enables anaerobic CO conversion to polyhydroxyalkanoates

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7878-7886
DOI: 10.1039/D5GC01092F, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Timon M. Torres Ruano, Martijn Diender, Diana Z. Sousa
A novel biocatalyst for the production of polyhydroxybutyrate using carbon monoxide as the sole substrate.
The content of this RSS Feed (c) The Royal Society of Chemistry

Conversion of biomass-derived monosaccharides to 2-methylfuran in supercritical acetone

Chemical News - 7 July, 2025 - 11:16

Green Chem., 2025, 27,7897-7907
DOI: 10.1039/D5GC01910A, PaperQiufu Zeng, Chenyu Ge, Qianxin Sun, Xi Li, Changwei Hu
Supercritical acetone enables one-pot xylose-to-2-MF conversion via C–C cleavage/aldol condensation, achieving full carbon utilization.
The content of this RSS Feed (c) The Royal Society of Chemistry

La cottura periodica: l’uovo perfetto!

BLOG: LA CHIMICA E LA SOCIETA' - 6 July, 2025 - 09:18

di Nunzia Iaccarino*

Chi non ha mai provato a cuocere un uovo alla perfezione? Croce e delizia dei cuochi, amatoriali e professionisti, le uova sono ingredienti semplici solo in apparenza. C’è chi le preferisce alla coque, chi sode, chi ama la consistenza “cremosa” del tuorlo tipica della cottura a bassa temperatura. Ma c’è un problema cruciale che la scienza conosce bene: l’albume e il tuorlo richiedono temperature diverse per cuocere in modo ottimale. Fino ad oggi, questa differenza obbligava a scendere a compromessi sul risultato finale. Un recente studio condotto da un team di ricercatori dell’Università degli Studi di Napoli Federico II guidati da Ernesto Di Maio con Emilia Di Lorenzo del Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Antonio Randazzo del Dipartimento di Farmacia e Pellegrino Musto dell’Istituto di Chimica e Tecnologia dei Polimeri (ICTP) CNR

 ha però dimostrato che, con un approccio ingegneristico e una buona dose di modellazione matematica, è possibile cuocere l’uovo… in modo perfetto.

Cottura Periodica: l’uovo a due temperature senza romperlo

Il lavoro pubblicato su Communications Engineering [1], presenta una tecnica innovativa denominata Cottura Periodica. Il principio è tanto semplice quanto ingegnoso: cuocere l’uovo alternando brevi immersioni di 2 minuti in acqua calda (100 °C) e 2 minuti in acqua fredda (30 °C), per un totale di otto cicli, equivalenti a 32 minuti complessivi. Questo trattamento termico ciclico genera all’interno dell’uovo un profilo di temperatura controllato che consente di raggiungere circa 85 °C nell’albume, favorendone la coagulazione, e 65–67 °C nel tuorlo, la temperatura ideale per mantenerne la cremosità, senza la necessità di separare le due componenti.

L’idea prende ispirazione da processi di lavorazione dei materiali, dove condizioni variabili nel tempo vengono impiegate per modulare proprietà come la densità o la morfologia. Applicando questo concetto alla cucina, è stato simulato il trasferimento di calore nell’uovo mediante un programma di modellazione e simulazione matematica, con ottimi risultati: il profilo termico risultante è altamente controllato e predicibile.

La prova del cuoco… e dello spettrometro

Per validare la teoria, le uova sono state cucinate con quattro diverse tecniche: bollitura classica (12 minuti a 100 °C), cottura soft (6 minuti a 100 °C), sous vide (60 minuti a 65 °C) e cottura periodica (Figura 1).

Figura 1. Diverse modalità di cottura dell’uovo esplorate Copyright Communications Engineering.

I risultati sono stati analizzati con metodi avanzati: FT-IR per valutare il grado di denaturazione proteica, analisi sensoriale e della consistenza, 1H-NMR e spettrometria di massa ad alta risoluzione per il profilo nutrizionale.

I risultati permettono di stabilire che con la cottura periodica si ottiene un albume ben cotto e un tuorlo cremoso, bilanciando consistenza, sapore e valore nutrizionale. La cottura periodica ha preservato meglio alcune molecole bioattive, in particolare i polifenoli e gli amminoacidi essenziali (come la lisina e e gli altri amminoacidi a catena ramificata), che in altre modalità risultano degradati.

Dalla cucina al laboratorio… e ritorno

Oltre al fascino di poter cuocere un uovo “scientificamente perfetto”, questo studio mette in luce l’importanza della chimica e dell’ingegneria nei processi alimentari. La ricerca suggerisce che un controllo più fine delle condizioni termiche può avere ricadute non solo sul gusto, ma anche sulla qualità nutrizionale e la sicurezza alimentare. E non solo: la periodicità termica è un approccio applicabile anche in ambiti diversi dalla cucina, come la cristallizzazione, la polimerizzazione e la lavorazione di materiali.

In conclusione, questo lavoro, è un esempio brillante di come concetti avanzati possano trasformarsi in soluzioni pratiche per la risoluzione di problemi quotidiani. È anche un invito a guardare alle nostre cucine come laboratori chimici, dove ogni gesto, anche quello di bollire un uovo, può nascondere affascinanti complessità.

[1] Emilia Di Lorenzo, Francesca Romano, Lidia Ciriaco, Nunzia Iaccarino, Luana Izzo, Antonio Randazzo, Pellegrino Musto, Ernesto Di Maio Periodic cooking of eggs. Commun Eng 4, 5 (2025).https://www.nature.com/articles/s44172-024-00334-w

*Nunzia Iaccarino, laurea e PhD CTF a Napoli, dal 2021 è ricercatrice di chimica analitica presso il dipartimento di Farmacia dell’Università di Napoli. Si occupa di  metabolomica mediante spettroscopia NMR e spettrometria massa.

An electrochemical resistor for discharging spent lithium-ion batteries: discharging mechanism and environmental impact analysis

Chemical News - 3 July, 2025 - 14:54

Green Chem., 2025, 27,7678-7690
DOI: 10.1039/D5GC00787A, PaperXin Qu, Fangzhao Pang, Shiyu Wang, Xiang Chen, Xinyu Li, Fengyin Zhou, Danfeng Wang, Shuaibo Gao, Dihua Wang, Huayi Yin
An electrochemical resistor (ECR) to convert the residual energy of retired lithium-ion batteries into heat using a reversible electrochemical redox couple (K3[Fe(CN)6]/K4[Fe(CN)6]).
The content of this RSS Feed (c) The Royal Society of Chemistry

Supported manganese catalysts achieve highly efficient C–H bond oxidation and olefin epoxidation

Chemical News - 3 July, 2025 - 14:54

Green Chem., 2025, 27,7717-7727
DOI: 10.1039/D5GC01164G, PaperYirui Chen, Yuqi Cheng, Wanting Tong, Hangtao Wu, Chuhan Zhao, Dingguo Song, Fei Ling, Weihui Zhong
Improving catalytic performance after immobilization remains challenging. We propose a strategy where the support not only serves as a scaffold but also acts as a bulky side arm, enhancing enantioselectivity by modifying the catalytic monomer.
The content of this RSS Feed (c) The Royal Society of Chemistry

High ionic conductivity conjugated artificial solid electrolyte interphase enabling stable lithium metal batteries

Chemical News - 3 July, 2025 - 14:54

Green Chem., 2025, 27,7564-7574
DOI: 10.1039/D5GC01282A, PaperDong Yan, Yuhao Ma, Hao Wang, Weishang Jia, Xiaobin Niu, Haibo Wang, Wei Zou, Liping Wang
The functional artificial SEI layer (CPAN@ZnO), featuring high ionic conductivity, effectively enhances interface stability of Li metal and improves cycling performance of Li-limited cells.
The content of this RSS Feed (c) The Royal Society of Chemistry

Tuning charge-carrier transport in isostructural covalent organic frameworks for enhanced photocatalytic CO2 reduction

Chemical News - 3 July, 2025 - 14:54

Green Chem., 2025, 27,7631-7641
DOI: 10.1039/D5GC02267C, PaperYize Zhang, Haobo Xu, Hangshuai Li, Junrong Jiao, Xin Wen, Qinggang Meng, Xingwang Lan
The synergy between Co and porphyrin–bicarbazole COFs establishes dual-channel charge transport pathways, enhancing charge separation and boosting CO2 photoreduction performance.
The content of this RSS Feed (c) The Royal Society of Chemistry

Cutting-edge development of non-isocyanate polyurethane (NIPU) foams: from sustainable precursors to environmental impact evaluation

Chemical News - 3 July, 2025 - 14:54

Green Chem., 2025, 27,7403-7444
DOI: 10.1039/D4GC05796A, Critical ReviewOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Federica Orabona, Federica Recupido, Giuseppe Cesare Lama, Krzysztof Polaczek, Francesco Taddeo, Tapio Salmi, Martino Di Serio, Letizia Verdolotti, Vincenzo Russo
This review includes the key steps in the synthesis of NIPUs. The key aspects in the synthesis, characterization, and functionalization of NIPUs are analyzed in detail, along with giving insights into the recently published LCA analyses.
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