{"title":"A platinated prodrug leveraging PROTAC technology for targeted protein degradation and enhanced antitumor efficacy","authors":"Jiaqian Xu, Shu Chen, Ka-Yan Ng, Xianfeng Chen, Wai Chung Fu, Guangyu Zhu","doi":"10.1039/d5qi00605h","DOIUrl":"https://doi.org/10.1039/d5qi00605h","url":null,"abstract":"Proteolysis targeting chimeras (PROTACs), which catalytically degrade disease-related proteins, can overcome the limitations of traditional small-molecule inhibitors and thus have revolutionized the field of targeted therapy. Building on this advancement, we present platinated PROTAC [PROTAC-Pt(IV)], a new class of “dual-action” prodrug that leverages the ubiquitin–proteasome system-mediated degradation capabilities of PROTAC and takes the advantages of Pt-based anticancer prodrugs. PROTAC-Pt(IV) exhibits exceptional cytotoxicity, with half-maximal inhibitory concentration values in the nanomolar range. It outperformed conventional inhibitor-based Pt(IV) prodrugs by up to three orders of magnitude by efficiently degrading the target protein BRD4 in a range of human cancer cells. PROTAC-Pt(IV) induces cancer cell death through mechanisms including augmented apoptosis, p21-mediated cell cycle arrest, and immune activation via PD-L1 downregulation. Compared with PROTAC alone, PROTAC-Pt(IV) more effectively suppressed the growth of tumor xenografts in a mouse model via its altered pharmacokinetic properties. Collectively, the development of PROTAC-Pt(IV) marks a revolution in dual-action Pt(IV) anticancer prodrugs and offers a promising avenue for enhanced and targeted cancer therapies.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"71 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wenhui Yang, Chensi Zhan, Qiang Zhu, Lei Liu, Baiming Su, Haoxiang Yu, Liyuan Zhang, Lei Yan, Jie Shu
{"title":"Proton Coordination Chemistry in Pyrene-based Anode for Ultralong-life Aqueous Proton Batteries","authors":"Wenhui Yang, Chensi Zhan, Qiang Zhu, Lei Liu, Baiming Su, Haoxiang Yu, Liyuan Zhang, Lei Yan, Jie Shu","doi":"10.1039/d5qi00269a","DOIUrl":"https://doi.org/10.1039/d5qi00269a","url":null,"abstract":"Sustainable and safe aqueous proton batteries (APBs) have attracted significant attention owing to the unique “Grotthuss mechanism”. Although organic small molecules with stable and adjustable framework are promising electrode materials, their easy-dissolution in electrolyte and unsatisfactory intrinsic conductivity cripple the broader application in APB devices. Herein, the 2,7-diammonio-4,5,9,10-tetraone (PTO-NH3+) with the stable intermolecular hydrogen-bond networks is designed via the in-situ electrochemical reduction strategy, while the optimized molecule structure endows low charge transport barriers, high chemical reactivity, and prominent charge affinity. The fast kinetics of proton coordination/de-coordination behavior in PTO-NH3+ electrode is corroborated by ex-situ characterization techniques and theoretical calculations. As a result, the robust four-step 4e- H+ coordination with PTO-NH3+ electrode achieves an excellent rate performance (214.3 mAh g-1 at 0.05 A g-1, 112.9 mAh g-1 at 40 A g-1), along with a long lifespan (10000 cycles). These findings shed light on the further avenue towards advanced proton batteries.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"1 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyunjin Cho, Yujin Kim, Whi Dong Kim, Young-Shin Park, Ju Young Woo, Hyung-Kyu Lim, Doh C. Lee
{"title":"Ligand-Driven Facet Control of InAs-Based Quantum Dots for Enhanced Near- and Shortwave Infrared Emission","authors":"Hyunjin Cho, Yujin Kim, Whi Dong Kim, Young-Shin Park, Ju Young Woo, Hyung-Kyu Lim, Doh C. Lee","doi":"10.1039/d5qi00142k","DOIUrl":"https://doi.org/10.1039/d5qi00142k","url":null,"abstract":"InAs-based quantum dots (QDs) are promising heavy-metal-free semiconductors for infrared emission technologies, offering tunable bandgaps via quantum confinement and excellent charge-carrier transport properties. Building on these advantages, we report the synthesis of QDs tailored for emission in the near-infrared (NIR) and short-wave infrared (SWIR) regions, emphasizing the critical role of capping ligands in controlling surface facet populations and nanocrystal morphology. Specifically, we demonstrate that the choice of ligand plays a critical role in determining the morphology and surface characteristics of InAs QDs. Using dioctylamine as a ligand results in InAs QDs with a spherical or tetrapod morphology, where nonpolar (110) facets are predominantly exposed on the surface. In contrast, oleic acid as a ligand promotes the formation of tetrahedral-shaped QDs with polar (111) crystalline planes being more prominently exposed. Using a one-pot synthesis approach, we successfully synthesized InAs/InZnP/ZnSe/ZnS core-multi-shell structures that effectively minimize interfacial defects. QDs with dioctylamine-capped core exhibit significantly higher photoluminescence quantum yield (PLQY) compared to those with oleic acid-capped cores. We achieved a PLQY of 39% at 1260 nm and 7.3% at 1420 nm with QDs using dioctylamine, representing efficiency values among the best reported in both the NIR and SWIR regions. Transient absorption (TA) spectroscopy reveals that dioctylamine-capped QDs exhibit reduced ground-state bleaching differences across excitation wavelengths compared to oleic acid-capped QDs, indicating significantly reduced interfacial trap states. These findings highlight the importance of ligand-driven facet control in the context of minimizing interfacial defect formation.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"57 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhe Hong, Lei Miao, Jialin Tan, Yang Liu, Shujing Chen, Lihua Deng, Qun Yang, Xianlong Gao, Fangtao Huang, Zhirong Zhu
{"title":"Urea-induced platelike ZSM-5 zeolite with Si zoning for efficient alkylation of toluene with ethanol to para-ethyltoluene","authors":"Zhe Hong, Lei Miao, Jialin Tan, Yang Liu, Shujing Chen, Lihua Deng, Qun Yang, Xianlong Gao, Fangtao Huang, Zhirong Zhu","doi":"10.1039/d5qi00100e","DOIUrl":"https://doi.org/10.1039/d5qi00100e","url":null,"abstract":"Platelike zeolites with short diffusion pathway are promising catalysts due to the mass transfer advantages. Herein, a platelike ZSM-5 with shortened b‑axis thicknesses (~90 nm) was synthesized using a urea-assisted crystallization strategy. We disclose the significant application of this platelike catalyst in the reaction of toluene alkylation with ethanol to produce para-ethyltoluene (p-ET). The reaction results demonstrate that this platelike ZSM-5 exhibits a higher toluene conversion (58.3%) and ET selectivity (88.7%) than that of conventional ZSM-5. The improvement should be primarily due to the shortened straight channels of platelike ZSM-5, which facilitate the mass transport and increase the accessibility of acid sites. Nevertheless, the shortened b-axis of platelike ZSM-5 seems to have no significant positive impact on para-selectivity for p-ET. Hence, we construct a Si-zoned external surface on the platelike ZSM-5 by means of the surface modification strategy to accurately passivate the surface acid sites, thereby inhibiting the isomerization reaction, and achieving higher selectivity for p-ET (> 95%) and good catalytic stability (>100 h) in the reaction of toluene alkylation with ethanol.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"57 19 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sheng Wan, Hanbo Wang, Yan Wang, Rui Wang, Dongyu Pei, Ziming Wang, Yumei Tian, Shi Zhan, kechang li, Haiyan Lu
{"title":"Interfacial synergistic regulation of MXene-composited nickel-cobalt double hydroxide for high-performance supercapacitors","authors":"Sheng Wan, Hanbo Wang, Yan Wang, Rui Wang, Dongyu Pei, Ziming Wang, Yumei Tian, Shi Zhan, kechang li, Haiyan Lu","doi":"10.1039/d4qi02825b","DOIUrl":"https://doi.org/10.1039/d4qi02825b","url":null,"abstract":"Nickel-cobalt double hydroxide is gaining significant interest due to its high theoretical specific capacitance. However, its tendency to agglomerate and low electrical conductivity present major challenges for its application. This study employed a one-step hydrothermal method to integrate exfoliated few-layer MXene materials with NiCo-LDH, facilitating the uniform vertical growth of NiCo-LDH nanosheets on the surface of the MXene, effectively minimizing agglomeration. Additionally, the interfacial synergy between MXene and NiCo-LDH enhances the transfer of electrons from NiCo-LDH to MXene, resulting in an electron-rich MXene and an oxygen vacancy-rich NiCo-LDH. Together, these characteristics significantly improve the electrochemical performance of the material at high current densities, achieving 7776 Wh kg−1 and 66.96 Wh k g−1 at 15 A g−1. After cycling 40,000 times, it retains an impressive capacity retention rate of 89.5%. These findings demonstrate that MXene materials effectively tackle the main challenges associated with NiCo-LDH, opening new possibilities for their application in electrode materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"34 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High density facet junctions in nano-stepped CuFeO2 enable efficient charge separation for selective photocatalytic CO2 reduction to CH4","authors":"Jingying Wei, Chun Guo, Dongfen Hou, Dailing Jia, Huaiguo Xue, Jingqi Tian, Tengfei Jiang","doi":"10.1039/d5qi00055f","DOIUrl":"https://doi.org/10.1039/d5qi00055f","url":null,"abstract":"Facet junctions have been demonstrated to be effective in promoting the separation of photoinduced charges. However, the micro-size of photocatalysts with a limited density of facet junctions usually hinders the improvement of photocatalytic performance. In this work, we propose the synthesis of nanoscale CuFeO<small><sub>2</sub></small> through a hydrothermal and acid etching strategy, which leads to the formation of stepped CuFeO<small><sub>2</sub></small> hexagonal nanosheets with high-density facet junctions. Experimental characterization and density functional theory (DFT) calculations indicate that the steps are composed of horizontal (001) and vertical (−120) facets that form facet junctions, between which a work function difference of 0.74 eV induces the formation of a built-in electric field. Surface photovoltage measurements further demonstrate directional photoinduced electron transfer from (−120) to (001) to generate an electron-rich surface in CuFeO<small><sub>2</sub></small>. As a result, the stepped CuFeO<small><sub>2</sub></small> with high-density facet junctions exhibits superior photocatalytic performance in the reduction of CO<small><sub>2</sub></small> to CH<small><sub>4</sub></small> compared to non-stepped CuFeO<small><sub>2</sub></small>, with a rate of 43.79 μmol g<small><sup>−1</sup></small> h<small><sup>−1</sup></small> and 78% selectivity. <em>In situ</em> infrared spectroscopy further reveals that the stepped CuFeO<small><sub>2</sub></small> with a high density of facet junctions is more conducive to the formation of key CH<small><sub>3</sub></small>O* intermediates that promote CH<small><sub>4</sub></small> production.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"16 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanjing Qin, Jianwu Wei, Jing Li, Xianli Li, Binbin Luo, Peican Chen, Liya Zhou, Jin Zhong Zhang, Qi Pang
{"title":"Near-unity room-temperature phosphorescence quantum yield induced by halogen–halogen interaction in chiral hybrid copper(I) iodide clusters","authors":"Yanjing Qin, Jianwu Wei, Jing Li, Xianli Li, Binbin Luo, Peican Chen, Liya Zhou, Jin Zhong Zhang, Qi Pang","doi":"10.1039/d5qi00348b","DOIUrl":"https://doi.org/10.1039/d5qi00348b","url":null,"abstract":"Employing chiral (<em>R</em>/<em>S</em>)-4-chloro/bromo-α-methylbenzylamine (<em>R</em>/<em>S</em>-X-MBA, X = Cl, Br) as ligands, we prepare two zero-dimensional hybrid copper(<small>I</small>) iodide clusters, (<em>R</em>/<em>S</em>-Cl-MBA)<small><sub>4</sub></small>Cu<small><sub>4</sub></small>I<small><sub>4</sub></small> (<em>R</em>/<em>S</em>-Cl) and (<em>R</em>/<em>S</em>-Br-MBA)<small><sub>4</sub></small>Cu<small><sub>4</sub></small>I<small><sub>4</sub></small> (<em>R</em>/<em>S</em>-Br), <em>via</em> a simple room-temperature solvent-diffusion method. Both <em>R</em>/<em>S</em>-Cl and <em>R</em>/<em>S</em>-Br are in the <em>C</em>2 chiral space group with a monoclinic crystal system. Under 310 nm excitation, <em>R</em>/<em>S</em>-Cl and <em>R</em>/<em>S</em>-Br exhibit efficient orange and yellow broadband luminescence, featuring large Stokes shifts, microsecond lifetimes, and symmetric chiral CD signals. Interestingly, compared to <em>R</em>/<em>S</em>-Cl with a photoluminescence (PL) quantum yield (QY) of ∼46%, a near-unity PLQY is observed for <em>R</em>/<em>S</em>-Br, along with a longer PL lifetime (∼13.5 μs). The high PLQY is attributed to intermolecular halogen–halogen interactions, which greatly enhance lattice rigidity and suppress nonradiative recombination of triplet excitons. Furthermore, <em>R</em>/<em>S</em>-Br has been demonstrated for X-ray scintillator application. This work offers an effective strategy for designing multifunctional and efficient chiral phosphors.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"9 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pore Structure Modulation and Defect Engineering of Soft Carbon@Coal-Derived Hard Carbon for Enhanced Sodium Storage Application in SIBs","authors":"xinhui jin, Haoyu Ma, Guoping Liu, Xikun Zhang, Dong Wang, Dejie Mo, Jiangyan Xie, Li-rong Feng, Maochun Wu, Bao-Lian Su, Xiaohui Guo","doi":"10.1039/d4qi03237c","DOIUrl":"https://doi.org/10.1039/d4qi03237c","url":null,"abstract":"Hard carbon (HC) is regarded as the most promising commercial anode material for sodium-ion batteries (SIBs) due to its low cost, abundant sources, large reversible capacity, and suitability. Nevertheless, HC suffers from low initial coulombic efficiency (ICE), poor rate performance, and long-term cycling performance, significantly restricting its practical application. Herein, we proceed with defined regulation of the microcrystalline structure of coal-derived HC, which obtains the reduced surface defects and the increased interlayer spacing, further enhancing the sodium storage capacity of coal-derived HC as an anode material for SIBs by coating porous HC with soft carbon (SC). Meanwhile, we successfully synthesize high-performance SC@HC composite materials through chemical crosslinking reactions by innovatively adopting the sol-gel method and SC coating for the complex composition of coal. The SC@HC composite material as an anode in SIBs can deliver a reversible capacity of 320 mAh/g at 0.01 A/g, a high ICE of 89%, and good cycling stability (capacity retention of 80% after 400 cycles at 1 A/g). This work can rationally guide the design of low-defect and much more closed pores coal-derived HC materials and provide a feasible route for the development of high-performance HC-based anode materials for SIBs applications.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"44 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inorganic Chemistry Frontiers Outstanding Paper Awards 2014–2023","authors":"","doi":"10.1039/d5qi90012c","DOIUrl":"https://doi.org/10.1039/d5qi90012c","url":null,"abstract":"A graphical abstract is available for this content","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"7 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luca Rocchigiani, Scott Collins, J. Scott McIndoe, Mikko Linnolahti
{"title":"Comparison of PGSE NMR and ESI-MS Measurements on Methylaluminoxane","authors":"Luca Rocchigiani, Scott Collins, J. Scott McIndoe, Mikko Linnolahti","doi":"10.1039/d4qi02982h","DOIUrl":"https://doi.org/10.1039/d4qi02982h","url":null,"abstract":"PGSE NMR and ESI-MS studies of different grades of hydrolytic MAO demonstrate that the average dimensions and anion distribution of MAO are correlated with one another, as revealed through studies of aging and gelation of a commercial formulation of MAO. Formulations featuring an anion distribution skewed to higher m/z ratios have significantly higher activator contents as measured by 1H NMR spectroscopy in otherwise very similar formulations. PSGE NMR studies in toluene vs. chlorobenzene media demonstrate that the average hydrodynamic dimensions of MAO are largely unaffected by solvent polarity, though aggregation behavior is somewhat sensitive to solvent polarity. As for catalyst activation and ion-pair speciation, the situation in polar solvents is complicated by the formation of solvated cations (and anions) in chlorobenzene which dramatically lower dimensions. DFT studies of model aluminoxane structures in the size range for MAO featuring a variety of architectures, molar mass and Me3Al content reveal that a linear correlation between Dt, as measured by PGSE NMR, can be related to molar mass using simple relationships and estimates of molecular volume if suitable high molecular weight standards are available. There is a reasonable agreement in molar mass with available ESI-MS data, recognizing that MAO is not monodisperse.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"183 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}