ChemPlusChem最新文献

Front Cover: Redox-Responsive Side Chain Structural Changes in a Seven-Membered Cyclic α,α-Disubstituted α-Amino Acid with a Disulfide Bond Enable Reversible Conformational Changes in Peptides (ChemPlusChem 4/2025)

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-15 DOI: 10.1002/cplu.202580401

Dr. Makoto Oba, Hikaru Nonaka, Dr. Tomohiro Umeno, Dr. Takuma Kato, Dr. Mitsunobu Doi, Dr. Atsushi Ueda, Dr. Masakazu Tanaka

引用次数: 0

Adsorption of Mercury in Aqueous Solutions by Functionalized Cellulose Extracted from Soybean Hulls.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-09 DOI: 10.1002/cplu.202400707

Monica Rigoletto, María Rapp, Amaya Arencibia, María-José López-Muñoz, Maria Laura Tummino, Nieves Fernández de Paz, Enzo Laurenti

{"title":"Adsorption of Mercury in Aqueous Solutions by Functionalized Cellulose Extracted from Soybean Hulls.","authors":"Monica Rigoletto, María Rapp, Amaya Arencibia, María-José López-Muñoz, Maria Laura Tummino, Nieves Fernández de Paz, Enzo Laurenti","doi":"10.1002/cplu.202400707","DOIUrl":"https://doi.org/10.1002/cplu.202400707","url":null,"abstract":"The presence of potentially toxic elements (PTEs) in drinking water and the food chain is a well-known hazard to human health. Among PTEs, mercury is particularly dangerous for humans and other living organisms due to its wider effects on internal organs. Hg contamination is a critical issue for water bodies used for aquaculture, making its elimination mandatory. Among the techniques proposed for Hg removal, adsorption is advantageous because of its versatility, absence of secondary pollution, and relatively low cost, especially when adsorbents can be obtained from waste materials. In this article, adsorbent materials are synthesized by introducing thiols and primary amino groups into cellulose fibers isolated from soybean hulls. After characterization, the ability of the materials to remove mercury from both ultrapure and aquaculture water solutions is tested. The results confirm the affinity of Hg for thiol groups, leading to the adsorption of 44 mg(Hg)/g in a wide pH range. The amino-modified material adsorbs ≈50% Hg less than the thiol-functionalized one. Test in real water shows that organic matter and salts influence the Hg adsorption process, without affecting the overall efficiency. Finally, in real water, a final concentration below the Hg legal limit for human consumption (1 μg L-1) is found.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2400707"},"PeriodicalIF":3.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810091","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}

引用次数: 0

Advances in Isotope Labeling for Solution Nucleic Acid NMR Spectroscopy.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-09 DOI: 10.1002/cplu.202400752

Stefan Hilber, Solomon Kojo Attionu, Theodore Kwaku Dayie, Christoph Kreutz

{"title":"Advances in Isotope Labeling for Solution Nucleic Acid NMR Spectroscopy.","authors":"Stefan Hilber, Solomon Kojo Attionu, Theodore Kwaku Dayie, Christoph Kreutz","doi":"10.1002/cplu.202400752","DOIUrl":"https://doi.org/10.1002/cplu.202400752","url":null,"abstract":"The availability of nucleic acid structural biology methods still lags behind that of proteins, as evidenced by the significantly smaller number of structures deposited in the PDB. The highly skewed ratio of nucleic acid structures, relative to their protein counterparts (~1:50), is inverted with respect to the cellular output of RNA and proteins in higher organisms (~50:1). While nuclear magnetic resonance (NMR) spectroscopy is an attractive biophysical tool to bridge this gap, the conformational flexibility, line-broadening, and low chemical shift dispersion of nucleic acids have made the NMR method challenging, especially for nucleic acids larger than 35 nucleotides. The incorporation of NMR-active isotope labels is an effective strategy to combat these problems. Here, we review strides made to push the limits of nucleic acid structures solved by NMR using chemo-enzymatic DNA 13C-methyl and RNA aromatic 15N- and 19F-13C-labeling and evaluate some of the challenges and opportunities they present. We anticipate that the combination of these novel isotopic labeling patterns with superior NMR spectroscopic properties, with new emerging DNA/RNA synthesis methods (palindrome-nicking-dependent amplification and Segmental labeling and site-specific Modifications by Template-directed eXtension, may well stimulate advances in NMR studies of high-molecular-weight DNA/RNA and their complexes with important biological functions.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400752"},"PeriodicalIF":3.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810092","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}

引用次数: 0

Chiral Borondipyrromethene Dye with Acid-Responsive NIR Emission and Chiral Optical Behavior.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-08 DOI: 10.1002/cplu.202500237

Chunyan Song, Zhenhui Wei, Yongsheng Zhang, Muqian Li, Junbo Gong

引用次数: 0

Harnessing Fluorine Chemistry: Strategies for PFAS Removal and Enrichment.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-07 DOI: 10.1002/cplu.202400784

Anne Lobitz, Alex Steuber, Shang Jia, Lei Guo

引用次数: 0

Cooperation of Dual Organic Spacer Cations and A Site Cations for High Performance Quasi-two Dimensional Ruddlesden-Popper Perovskite Solar Cells.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-07 DOI: 10.1002/cplu.202500169

Chunlong Yuan, Zetan Zhang, Shiying Tang, Yunsheng Gou, Pan Zhao, Haimin Li, Hua Yu

{"title":"Cooperation of Dual Organic Spacer Cations and A Site Cations for High Performance Quasi-two Dimensional Ruddlesden-Popper Perovskite Solar Cells.","authors":"Chunlong Yuan, Zetan Zhang, Shiying Tang, Yunsheng Gou, Pan Zhao, Haimin Li, Hua Yu","doi":"10.1002/cplu.202500169","DOIUrl":"https://doi.org/10.1002/cplu.202500169","url":null,"abstract":"Ruddlesden-Popper (RP) quasi-two-dimensional (2D) perovskites exhibit enhanced stability compared to their three-dimensional counterparts due to the incorporation of bulky organic spacer cations. However, their efficiency is relatively low owing to the large exciton binding energy and quantum confinement effects associated with these organic spacer cations. In this work, we developed a diversified cation regulation strategy by adjusting both the spacer cations and A-site cations, leading to the fabrication of mixed 4-fluoro-phenethylammonium (F-PEA+)/n-butylammonium (BA+) and formamidinium (FA+)/methylammonium (MA+) n=4 quasi-2D RP perovskite solar cells. Primarily, the introduction of F-PEA+ induced an ordered distribution of the film from low-n to high-n phases, resulting in enhanced crystallinity, larger grain size, fewer cracks and voids as well as high-quality perovskite films with preferred orientation. Furthermore, the incorporation of FA+ reduced the bandgap of the perovskite, facilitating exciton dissociation and enhancing carrier transport capabilities. Ultimately, Under the synergistic effect, the obvious elevation in the efficiency of NiOx-based (BA0.9F-PEA0.1)2(MA0.8FA0.2)3Pb4I13 n=4 quasi-2D RP perovskite solar cells from 12.51% to 15.68% is achieved. Additionally, the unencapsulated devices retained 80.4% of initial efficiency after 1100 hours of heating at 60°C in ambient air with 40% relative humidity, demonstrating excellent thermal and moisture stability.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500169"},"PeriodicalIF":3.0,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143794272","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}

引用次数: 0

Tethering Efficiency of RAFT-Synthesised SMA Polymers and Associated SMALPs on Gold Surfaces.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-03 DOI: 10.1002/cplu.202500173

Michelle D Farrelly, Denis Korneev, Lisandra L Martin, San H Thang

{"title":"Tethering Efficiency of RAFT-Synthesised SMA Polymers and Associated SMALPs on Gold Surfaces.","authors":"Michelle D Farrelly, Denis Korneev, Lisandra L Martin, San H Thang","doi":"10.1002/cplu.202500173","DOIUrl":"https://doi.org/10.1002/cplu.202500173","url":null,"abstract":"Styrene maleic acid lipid nanoparticles (SMALPs) arise from amphipathic SMA copolymer encapsulation of membranes into polymer-lipid nanodiscs, structures applied in the native extraction of membrane proteins (MPs). Strategies to immobilise SMALPs via their polymer belt onto surfaces allow the biophysical study of MPs without direct protein-surface anchoring. In this work, reversible addition-fragmentation chain transfer (RAFT) polymerisation was used to synthesise a library of diblock SMA copolymers to determine the optimal sequence for SMALP assembly. The further ability of trithiocarbonate (T) attached (Z)-end-groups, generated by RAFT polymerisation, to tether SMALPs to gold surfaces via sulfur-gold bonds was evaluated. Improved DMPC liposome solubilisation was achieved with a hydrophilic (Z)-end-group, shorter polystyrene block and lower molecular weight for diblock R-(Sty)-b-(Sty-alt-MA)-T-Z polymers. Quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM) revealed that diblock SMA polymers bound to gold as a micellular film, irrespective of the presence of the trithiocarbonate group. SMALPs, however, showed an enhanced gold affinity when terminated by a trithiocarbonate and hydrophilic RAFT (Z)-end-group compared to end-group removed SMALPs, the latter exhibiting non-specific gold adhesion. These findings offer a new approach in utilising RAFT end-groups of nanodisc assembling polymers for label-free analysis of MPs.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500173"},"PeriodicalIF":3.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778802","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}

引用次数: 0

In-Situ Polymerization of Polyaniline on Natural Fibers for Effective Lead Ion Removal from Aqueous Solutions.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-03 DOI: 10.1002/cplu.202500069

Subrat Swain, Jagannath Panda, Bebina Swain, Debadutta Samal, Jaykishon Swain, Anulipsa Priyadarsini, Rojalin Sahu

{"title":"In-Situ Polymerization of Polyaniline on Natural Fibers for Effective Lead Ion Removal from Aqueous Solutions.","authors":"Subrat Swain, Jagannath Panda, Bebina Swain, Debadutta Samal, Jaykishon Swain, Anulipsa Priyadarsini, Rojalin Sahu","doi":"10.1002/cplu.202500069","DOIUrl":"https://doi.org/10.1002/cplu.202500069","url":null,"abstract":"The contamination of water with heavy metals, particularly lead (Pb²⁺), has become a critical environmental and public health issue due to increasing industrialization and urbanization. Lead pollution has contributed to severe health problems, impacting over 10,000 people in recent years. In response to this growing concern, we developed a composite material, PANI@NF, by integrating polyaniline (PANI) with agro-waste fibers from date palm leaves, palm leaves, and korai grass. Among the tested composites, PANI@P20% demonstrated outstanding performance, achieving 96.2% lead removal and a sorption capacity of 24.1 mg/g under optimal conditions (pH 6.0, 0.01 g adsorbent, 50 ppm Pb²⁺, 298 K). The adsorption process for PANI@P20% followed a pseudo-second-order kinetic model and conformed well to the Freundlich isotherm, indicating multilayer adsorption on heterogeneous surfaces. Zeta potential analysis further confirmed favourable surface charge interactions at pH 6.0. Additionally, this composite exhibited excellent reusability, maintaining high efficiency over eight adsorption-desorption cycles. This work underscores the potential of using low-cost, biodegradable natural fibers as sustainable adsorbents for effective lead removal, offering a promising solution for water treatment and environmental preservation.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500069"},"PeriodicalIF":3.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770790","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}

引用次数: 0

Two-Phase Epoxidations with Micellar Catalysts: Insights, Limitations, and Perspectives.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-01 DOI: 10.1002/cplu.202500122

Markus Hegelmann, Mirza Cokoja

引用次数: 0

Isophthalate and N-Chelating Linkers Based Luminescent Cd-MOF for 'Turn-On' EtOH Sensing via RGB-Assisted Smartphone Platform and 'Turn-Off' Fe3+ Monitoring in Biodiesel Specimens.

IF 3 4区化学

ChemPlusChem Pub Date : 2025-04-01 DOI: 10.1002/cplu.202500085

Rajeshwari Pal, Udayan Mondal, Kumari Raksha, Priyabrata Banerjee

{"title":"Isophthalate and N-Chelating Linkers Based Luminescent Cd-MOF for 'Turn-On' EtOH Sensing via RGB-Assisted Smartphone Platform and 'Turn-Off' Fe3+ Monitoring in Biodiesel Specimens.","authors":"Rajeshwari Pal, Udayan Mondal, Kumari Raksha, Priyabrata Banerjee","doi":"10.1002/cplu.202500085","DOIUrl":"https://doi.org/10.1002/cplu.202500085","url":null,"abstract":"Monitoring trace solvent and metal adulteration in biodiesel is crucial for quality control and commercialization. This study explores a mesoporous Cd(II)-MOF for dual-mode fluorescence sensing: 'turn-on' detection of EtOH and 'turn-off' monitoring of Fe3+ in aqueous and biodiesel samples. Synthesized using N-chelating, π-conjugated 2,2'-bipyridine and μ3-η1:η2 bridging 5-hydroxyisophthalic acid, the MOF exhibits high phase purity, lamellar rod morphology, and high thermal stability, attributed to its robust framework, reinforced by supramolecular H-bonding and interlayer π-π stacking interactions. The MOF's blue luminescence enables rapid detection of EtOH (6.27-fold enhancement, LOD: 6.33 ppm, 40s response time) and Fe3+ (>90% quenching, LOD: ~1.17 µM, KSV: 1.318 × 105 M⁻1, 30s response time). The EtOH sensing ensues via photo-induced electron transfer (PET) restriction in the MOF, aided by hydrogen bonding with MOF hydroxyls and polarity effects, while Fe3+ quenching arises from absorption competition quenching (ACQ) and electrostatic interactions. The sensor detects EtOH and Fe3+ in pre-treated biodiesels derived from jatropha and waste cooking oil (recovery: 78-90% and 73-75%, respectively). Further, a 4.89-fold 'turn-on' for EtOH and ~81% quenching for Fe3+ was evidenced when analytes were directly added into untreated jatropha-biodiesel. A smartphone-based RGB calibration further enhances real-time ethanol analysis, ensuring practical applicability.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202500085"},"PeriodicalIF":3.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143750642","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}

引用次数: 0