A ratiometric upconversion nanoprobe enables super-resolution imaging sensing of biothiols in living cells
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d3cc06242b. Online ahead of print.ABSTRACTWe have developed an upconversion luminescent ratiometric nanoprobe, specifically designed for detection of biothiols with high sensitivity (∼25 nM) at the single-particle level. Using a single-particle localization and rendering method, this nanoprobe enables super-resolution imaging sensing of biothiols within a confined 22 nm space in living cells.PMID:38563651 | DOI:10.1039/d3cc06242b (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Hongqi Chen Ruoxin Wang Juanjuan Cheng Lun Wang Hua He Source Type: research
A novel B,O,N-doped mesogen with narrowband MR-TADF emission
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00537f. Online ahead of print.ABSTRACTModification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of str...
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Julius A Kn öller Burcu S önmez Tomas Matulaitis Abhishek Kumar Gupta Eli Zysman-Colman Sabine Laschat Source Type: research
Magnetostrictive-piezocatalytic CoFe < sub > 2 < /sub > O < sub > 4 < /sub > @UiO-66 nanohybrid and its potential for deep-seated tumor treatment
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00885e. Online ahead of print.ABSTRACTMagnetostrictive CoFe2O4 (CFO) nanoparticles were encapsulated within a UiO-66 metal-organic-framework layer to form a CFO@UiO-66 nanohybrid. The deforming of CFO, in response to a high-frequency AC magnetic field, initiates the piezocatalytic property of UiO-66 to generate ˙OH radicals, which can kill cancer cells buried in thick tissues, showcasing bright potential for deep-seated tumor treatment.PMID:38563776 | DOI:10.1039/d4cc00885e (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Qian Yu Meiyu Li Jiaojiao Zhang Hong Liu Long Zhang Shun Li Dengfeng Ge Jianming Zhang Source Type: research
Propulsion of zwitterionic surfactant-stabilized water-in-oil droplets by low electric fields
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d3cc05464k. Online ahead of print.ABSTRACTWe show directional and controllable propulsion of zwitterionic surfactant-stabilized water-in-oil droplets driven by low electric fields. Our results suggest that the propulsion mechanism is based on stimulus-responsive on-demand interfacial phenomena.PMID:38563781 | DOI:10.1039/d3cc05464k (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Lotta Gustavsson Bo Peng R émi Plamont Olli Ikkala Source Type: research
Towards tailoring hydrophobic interaction with uranyl(VI) oxygen for C-H activation
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc01030b. Online ahead of print.ABSTRACTBovine serum albumin (BSA) has a uranyl(VI) binding hotspot where uranium is tightly bound by three carboxylates. Uranyl oxygen is "soaked" into the hydrophobic core of BSA. Isopropyl hydrogen of Val is trapped near UO22+ and upon photoexcitation, C-H bond cleavage is initiated. A unique hydrophobic contact with "yl"-oxygen, as observed here, can be used to induce C-H activation.PMID:38563824 | DOI:10.1039/d4cc01030b (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Satoru Tsushima J érôme Kretzschmar Hideo Doi Koji Okuwaki Masashi Kaneko Yuji Mochizuki Koichiro Takao Source Type: research
Palladium-catalyzed alkynylation of allylic < em > gem < /em > -difluorides
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc01007h. Online ahead of print.ABSTRACTHerein, a palladium-catalyzed regioselective alkynylation, esterification, and amination of allylic gem-difluorides via C-F bond activation/transmetallation/β-C elimination or nucleophilic attack has been achieved. This innovative protocol showcases an extensive substrate range and operates efficiently under mild reaction conditions, resulting in high product yields and Z-selectivity. Particularly noteworthy is its exceptional tolerance towards a wide array of functional groups. This developed methodology provides effective and convenie...
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Guo-Ying Liu Lu-Ning Tang Jun-Hua Li Sen Yang Ming Chen Source Type: research
Crystalline hydrogen-bonded organic framework for air-tolerant triplet-triplet annihilation upconversion
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00742e. Online ahead of print.ABSTRACTA hydrogen-bonded organic framework (HOF) consisting of a 9,10-diphenylanthracene carboxylic derivative, DPACOOH, was developed for solid state triplet-triplet annihilation upconversion (TTA-UC). The HOF sample shows a 70% increase in upconversion quantum yield and a lower threshold value of 126.0 mW cm-2 compared to those of the disordered powder sample, due to a 43% longer triplet diffusion length in HOF than that in the powder sample.PMID:38563956 | DOI:10.1039/d4cc00742e (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Qiaoyu Zhang Guiwen Luo Rui Hu Guoqiang Yang Jinping Chen Tianjun Yu Yi Zeng Yi Li Source Type: research
A porous organic polymer for symmetric sodium dual-ion batteries through an adsorption-intercalation-insertion mechanism
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00642a. Online ahead of print.ABSTRACTA porous organic polymer (POP) has been developed for dual-ion storage in all organic symmetric rechargeable batteries. The triphenylamine-pyrene-based POP could host sodium and hexafluorophosphate ions acting as the anode and the cathode, respectively, through the adsorption-intercalation and insertion mechanism. The current study highlights the concept of widening the potential window of a dual ion battery by judicious selection of the constituent moieties.PMID:38563975 | DOI:10.1039/d4cc00642a (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Suprabhat Sarkar Tapas Kumar Dutta Balaji Prasad Mandal Abhijit Patra Source Type: research
Steric hindrance of < em > N < /em > < sup > 6 < /sup > -methyl in m < sup > 6 < /sup > A and its application for specific loci detection
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc01041h. Online ahead of print.ABSTRACTWe found that the N6 methyl group of N6-methyladenine is able to hinder the methylation of N6-methyladenine at the N1 position by DMS. Based on this, we have devised a novel method for detecting N6-methyladenine, which was successfully applied to identify specific m6A loci in 28S rRNA.PMID:38564258 | DOI:10.1039/d4cc01041h (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Xiaoyi Xie Qi Wei Jingyu Han Xin Fang Wei Yang Xiang Zhou Yafen Wang Xiaocheng Weng Source Type: research
Photochemical cyclopropanation in aqueous micellar media - experimental and theoretical studies
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00828f. Online ahead of print.ABSTRACTWhile in nature, reactions occur in water-based confined compartments, for a long time, water has been often regarded as an unsuitable medium for organic reactions. We have, however, found that photochemical cyclopropanation of styrenes with diazo compounds or their precursors can be performed in micellar systems. COSMO-RS studies revealed that the reactivity correlates with the predicted critical micelle concentration (CMC), with higher CMC values delivering higher yields.PMID:38564316 | DOI:10.1039/d4cc00828f (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Joseph P Milton Adam Milanowski Martin Andersson Dorota Gryko Source Type: research
Stereocontrol in an intermolecular Schmidt reaction of equilibrating hydroxyalkyl allylic azides
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00907j. Online ahead of print.ABSTRACTA selective intermolecular Schmidt reaction of equilibrating hydroxyalkyl allylic azides is reported to afford N-hydroxyalk-1-en-3-yl lactams in modest to high yields. For prochiral and chiral ketones, modest to high 1,5-diastereoselectivity was achieved, and the mechanistic analysis is supported by DFT calculation.PMID:38563154 | DOI:10.1039/d4cc00907j (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Ruzhang Liu Juan Wang Hao Wu Xianfeng Quan Shilin Wang Jiandong Guo Yang Wang Heting Li Source Type: research
BODIPY phototether enables oligonucleotide cyclization and subsequent deprotection by tissue-transparent red light
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00272e. Online ahead of print.ABSTRACTmeso-methyl-BODIPY photocages release a leaving group upon visible light irradiation but often lack thermal stability. In turn, our thermally-stable, red-shifted BODIPY phototether allows oligonucleotide cyclization, preventing complementary strand hybridization. Hybridization resumes upon red-NIR irradiation, disconnecting the phototether by oxidative cleavage, which is easily monitored by a blue shift in fluorescence.PMID:38563214 | DOI:10.1039/d4cc00272e (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Lucie Wohlr ábová Marlen Sahlbach Alexander Heckel Tom áš Slanina Source Type: research
Photoredox-catalyzed radical-radical cross coupling of ketyl radicals with unstabilized primary alkyl radicals
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00620h. Online ahead of print.ABSTRACTHerein, a novel protocol dealing with the preparation of sterically hindered alcohols has been successfully developed via radical-radical coupling reactions enabled by mild and redox-neutral photocatalysis. With alkylsilicates as the radical precursors, a range of primary alkyl radicals bearing various functional groups could couple with a range of phthalimides and activated ketones.PMID:38563261 | DOI:10.1039/d4cc00620h (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Shishen Feng Hong Liu Yan Li Yewen Fang Source Type: research
RNase H-dependent DNA thresholder modulated by cancer marker concentration
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00495g. Online ahead of print.ABSTRACTThreshold antisense oligonucleotide constructs were designed to cleave mRNA within different biomarker concentrations. The mRNA cleavage is activated by 2.6, 7.5 or 39.5 nM of biomarker depending on the construct design. The constructs can be used to differentiate cancer from normal cells by the level of oncogene expression followed by silencing of a targeted gene.PMID:38563262 | DOI:10.1039/d4cc00495g (Source: Chemical Communications)
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Moustapha A Y Nour Valeriia S Drozd Evgenii A Lemeshko Lilia Tafran Adeliia A Salimova Alexandra V Kulikova Ahmed A Eldeeb Source Type: research
Production of hydrogen from alcohols < em > via < /em > homogeneous catalytic transformations mediated by molecular transition-metal complexes
Chem Commun (Camb). 2024 Apr 2. doi: 10.1039/d4cc00594e. Online ahead of print.ABSTRACTHydrogen obtained from renewable sources such as water and alcohols is regarded as an efficient clean-burning alternative to non-renewable fuels. The use of the so-called bio-H2 regardless of its colour will be a significant step towards achieving global net-zero carbon goals. Challenges still persist however with conventional H2 storage, which include low-storage density and high cost of transportation apart from safety concerns. Global efforts have thus focussed on liquid organic hydrogen carriers (LOHCs), which have shown excellent po...
Source: Chemical Communications - April 2, 2024 Category: Chemistry Authors: Akshara Bisarya Suhana Karim Himani Narjinari Anwesha Banerjee Vinay Arora Sunil Dhole Arnab Dutta Akshai Kumar Source Type: research
