材料科学最新文献_第9页

Dimeric DNA Aptamers for the Spike Protein of SARS-CoV-2 Derived from a Structured Library with Dual Random Domains.

IF 10.7 2区材料科学

Small Methods Pub Date : 2024-12-20 DOI: 10.1002/smtd.202401600

Ryan Amini, Jian Ma, Zijie Zhang, Qing Wang, Jimmy Gu, Leyla Soleymani, Yingfu Li

{"title":"Dimeric DNA Aptamers for the Spike Protein of SARS-CoV-2 Derived from a Structured Library with Dual Random Domains.","authors":"Ryan Amini, Jian Ma, Zijie Zhang, Qing Wang, Jimmy Gu, Leyla Soleymani, Yingfu Li","doi":"10.1002/smtd.202401600","DOIUrl":"https://doi.org/10.1002/smtd.202401600","url":null,"abstract":"Multimeric aptamer strategies are often adopted to improve the binding affinity of an aptamer toward its target molecules. In most cases, multimeric aptamers are constructed by connecting pre-identified monomeric aptamers derived from in vitro selection. Although multimerization provides an added benefit of enhanced binding avidity, the characterization of different aptamer pairings adds more steps to an already lengthy procedure. Therefore, an aptamer engineering strategy that directly selects for multimeric aptamers is highly desirable. Here, an in vitro selection strategy is reported on using a pre-structured DNA library that forms dimeric aptamers. Rather than using a library containing a single random region, which is nearly ubiquitous in existing aptamer selections, the library contains two random regions separated by a flexible poly-thymidine linker. Following sixteen rounds of selection against the SARS-CoV-2 spike protein, a relevant model target protein due to the COVID-19 pandemic, the top aptamers displayed superb affinity with KD values as low as 150 pM. Further analysis reveals that each random region functions as a distinct binding moiety and works together to achieve higher affinity. The demonstrated strategy provides an accelerated method to obtain high-affinity aptamers, which may prove useful in future aptamer diagnostic and therapeutic applications.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e2401600"},"PeriodicalIF":10.7,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calix[4]arene@MIL-101 as host@MOF for cage-in-cage pore space partitioning for enhanced CO2 separation and catalysis†

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2024-12-20 DOI: 10.1039/d4ta07357f

Saied Shafiei Navid, Rahman Hosseinzadeh, Robert Oestreich, Soheil Abdpour, Thi Hai Yen Beglau, Christoph Janiak

{"title":"Calix[4]arene@MIL-101 as host@MOF for cage-in-cage pore space partitioning for enhanced CO2 separation and catalysis†","authors":"Saied Shafiei Navid, Rahman Hosseinzadeh, Robert Oestreich, Soheil Abdpour, Thi Hai Yen Beglau, Christoph Janiak","doi":"10.1039/d4ta07357f","DOIUrl":"https://doi.org/10.1039/d4ta07357f","url":null,"abstract":"Highly stable para-sulfonated calix[4]arene (SCA), a bowl-shaped macrocycle possessing intrinsic porosity, was incorporated in the spherical voids of the micro-mesoporous MIL-101(Cr) metal-organic framework by adsorptive loading from a solution. The pore-space partitioning in the MOF by polar functionalized macrocyclic molecules, which can also act as hosts, led to the host@MOF composite SCA@MIL-101 which demonstrated a high affinity to CO2 without involvement of alkaline amino functionalities. The SCA@MIL-101-w materials with w = 5, 10 and 30 wt% of SCA showed high stability (including in aqueous medium, at least under non-basic conditions), and slow leaching kinetics due to the near match of the SCA size and the pore entrances of the MOF. Despite the lower surface area and pore volume for w = 30 wt% SCA in MIL-101 (SBET = 1073 m2 g–1, Vpore = 0.52 cm3 g–1) vs MIL-101 (2660 m2 g–1, 1.0 cm3 g–1), the pore-space partitioning approach allows to improve the CO2 uptake capacity to 103 cm3 g–1 for SCA@MIL-101-30 over MIL-101 with 66 cm3 g–1 (293 K, 1 bar). Also, the CO2/N2 selectivity increases at low molar CO2 fraction, which is important for practical carbon-capture applications. For example, for a 25:75 molar CO2/N2 mixture SCA@MIL-101-30 has a selectivity of 23 vs 5.6 for MIL-101 at 273 K and 1 bar. Additionally, the SCA@MIL-101-30 composite showed good catalytic activity in the esterification of carboxylic acids, giving quantitative conversion on par with H2SO4 under the chosen conditions.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"30 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting charge migration kinetics using an Fe–S bridge for efficacious photocatalytic CO2 reduction

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2024-12-20 DOI: 10.1039/d4ta05116e

Keda Chen, Lei Ran, Bei Ran, Wei Xiong, Michael K. H. Leung

{"title":"Boosting charge migration kinetics using an Fe–S bridge for efficacious photocatalytic CO2 reduction","authors":"Keda Chen, Lei Ran, Bei Ran, Wei Xiong, Michael K. H. Leung","doi":"10.1039/d4ta05116e","DOIUrl":"https://doi.org/10.1039/d4ta05116e","url":null,"abstract":"Solar photocatalytic CO2 reduction is a promising sustainable technology that can convert the most significant greenhouse gas into green fuel. However, the sluggish migration of electron–hole pairs hinders its wider practical applications. This study investigates the use of charge bridge and internal electric field mechanisms to accelerate charge transfer and separation, thus enhancing photocatalytic CO2 reduction. We fabricated an Fe2O3/defective Bi19Br3S27 (FO/DBBS) S-scheme heterojunction using an in situ hydrothermal method. The charge transfer via the Fe–S bond and its kinetics were studied. The FO/DBBS photocatalysts demonstrated robust visible-light-driven photocatalytic CO2 reduction, achieving a high CO formation rate of 365.1 μmol g−1 h−1 with a selectivity of 93.9%. This performance significantly surpasses the yields from FO and DBBS alone. The improved photocatalytic CO2 conversion is attributed to the Fe–S bond acting as a charge bridge and the built-in electric field within the S-scheme heterojunction, facilitating effective charge separation. Moreover, the photogenerated carriers on FO/DBBS showed a remarkably longer lifetime and decay time, surpassing those of FO. The surface potential of FO/DBBS also increased significantly under illumination. These findings reveal the critical role of the Fe–S bridge in promoting charge separation within the FO/DBBS S-scheme heterojunction, leading to efficacious photocatalytic CO2 reduction.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"86 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Raman spectroscopy study of K-birnessite single crystals

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2024-12-20 DOI: 10.1039/d4ta90241f

Dong Han Ha, Gichang Noh, Hakseong Kim, Dong Hwan Kim, Jeongho Kim, Suyong Jung, Chanyong Hwang, Ha Young Lee, Yong Ju Yun, Joon Young Kwak, Kibum Kang, Sam Nyung Yi

引用次数: 0

Spring Effect Endowing P-doped Li3VO4 With Long-standing Catalytic Activity for Tuning Cycling Stability of MgH2

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2024-12-20 DOI: 10.1002/aenm.202404650

Wenqiang Hu, Jiahe Zang, Qisen Wang, Siyuan Xiao, Jichao Zhang, Fang Fang, Zhongliang Ma, Dalin Sun, Yun Song

{"title":"Spring Effect Endowing P-doped Li3VO4 With Long-standing Catalytic Activity for Tuning Cycling Stability of MgH2","authors":"Wenqiang Hu, Jiahe Zang, Qisen Wang, Siyuan Xiao, Jichao Zhang, Fang Fang, Zhongliang Ma, Dalin Sun, Yun Song","doi":"10.1002/aenm.202404650","DOIUrl":"https://doi.org/10.1002/aenm.202404650","url":null,"abstract":"Magnesium hydride (MgH2) is a promising hydrogen storage material for its high hydrogen capacity of 7.6 wt.%. However, the further application is severely hampered by the sluggish reaction kinetics and stable thermodynamics. Introducing catalysts is an effective method to improve the reaction rate, but the catalytic activity tends to decrease with an increasing number of reaction cycles, due to the highly reductive Mg and H species. Herein, the spring effect has been observed in the P doped Li3VO4, in which both V─P and V─V bonds undergo compression and elongation during hydrogen absorption and desorption, respectively. Such a unique self-regulation spring effect not only improves the reaction kinetics of MgH2, but also maintains the high activity of P doped Li3VO4, thereby ensuring the hydrogen capacity of MgH2 even after 100 loops. This spring effect of chemical bonding, stretched-recovered-stretched with the motion between the highly reductive Mg and H species, will provide insight into catalyst design for hydrogen-related industries.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"82 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery of lithium hydroxide from discarded lithium-ion batteries

IF 1.9 4区材料科学

Bulletin of Materials Science Pub Date : 2024-12-20 DOI: 10.1007/s12034-024-03356-4

Anoop S Kumar, K Ramaswamy, Dhvani B Purohit, Priyadarshini Bais, K Venkatesham, Neha Mohiuddin, S Rajesh Kumar, R Ratheesh, Ajay Kaushal

{"title":"Recovery of lithium hydroxide from discarded lithium-ion batteries","authors":"Anoop S Kumar, K Ramaswamy, Dhvani B Purohit, Priyadarshini Bais, K Venkatesham, Neha Mohiuddin, S Rajesh Kumar, R Ratheesh, Ajay Kaushal","doi":"10.1007/s12034-024-03356-4","DOIUrl":"10.1007/s12034-024-03356-4","url":null,"abstract":"<div>Recovery of lithium (Li) compounds from various Li resources is attracting attention due to the increased demand in Li-ion battery industry. Current work presents an innovative route for selective recovery of lithium content in the form of lithium hydroxide monohydrate (LiOH·H2O) from discarded LIBs. Lithium carbonate (Li2CO3) with purity > 99% is recovered from black mass. The recovered Li2CO3 is then crystallised to LiOH·H2O by using calcium hydroxide (Ca(OH)2) as the base. The method comprises of: (i) pre-treatment of LIB black mass powder; (ii) selective extraction of Li content from black mass; (iii) crystallisation and solid–liquid separation to recover LiOH·H2O as final recovered product. A total of 0.1933 wt.% impurities comprising of Ca, Al, Cu and Fe were detected in the recovered product. Elemental analysis at each processing step was carried out using inductively coupled plasma-optical emission spectroscopy. Structural properties of the recovered materials are analysed by using X-ray diffraction, field emission scanning electron microscopy. Fourier-transform infrared spectroscopy spectrum of recovered product was found consistent with the formation of LiOH·H2O. The LiOH·H2O is successfully recovered from discarded LIBs with purity of 99.8%, which finds its potential use as secondary raw material in battery manufacturing, Li-based high temperature grease manufacturing, carbon dioxide scrubbing in space craft and submarines, etc.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of V2O3@C-CNTs Nanocomposites via In Situ Growth of Carbon Nanotubes from V-MOF for Enhanced Lithium-Sulfur Battery Separators

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-12-20 DOI: 10.1016/j.jallcom.2024.178108

Lina Jin, Baozhong Li, Xinye Qian, Shuailong Zhao, Hexiang Xu

{"title":"Synthesis of V2O3@C-CNTs Nanocomposites via In Situ Growth of Carbon Nanotubes from V-MOF for Enhanced Lithium-Sulfur Battery Separators","authors":"Lina Jin, Baozhong Li, Xinye Qian, Shuailong Zhao, Hexiang Xu","doi":"10.1016/j.jallcom.2024.178108","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.178108","url":null,"abstract":"Lithium-sulfur (Li-S) batteries are a promising choice for high-energy-density devices. However, the dissolution and shuttle effect of lithium polysulfides (LiPS) hinder their long-term cycle life and capacity retention. To address these issues, we developed an efficient separator modified with V2O3@C-CNTs composite, which combines MOF-derived V2O3@C with carbon nanotubes (CNTs). The composite material effectively mitigates the shuttle effect and low conductivity issues by combining CNTs' excellent conductivity with V2O3@C's efficient chemical adsorption and catalytic conversion of LiPS. Batteries using the modified separator achieved an initial discharge capacity of 1288.4 mAh g-1 at 0.5 C, retaining 55.5% of the initial value after 500 cycles. Even with a high sulfur-loaded cathode (5 mg cm-1), the battery exhibited a capacity retention of approximately 65.4% after 300 cycles at 0.1 C, demonstrating its excellent specific capacity performance.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"148 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A p-Type Small-Molecule Organic Cathode Simultaneously for High-Voltage Li/Na-Based Dual-Ion Full Batteries

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2024-12-20 DOI: 10.1016/j.ensm.2024.103979

Meichen Guo, Wenjun Li, Wu Tang, Chenbin Tang, Bei Cao, Xuesong He, Cong Fan

引用次数: 0

Multidirectional Sliding Ferroelectricity of Rhombohedral-Stacked InSe for Reconfigurable Photovoltaics and Imaging Applications

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2024-12-20 DOI: 10.1002/adma.202416117

Qingrong Liang, Guozhong Zheng, Shuaiwei Fan, Liu Yang, Shoujun Zheng

{"title":"Multidirectional Sliding Ferroelectricity of Rhombohedral-Stacked InSe for Reconfigurable Photovoltaics and Imaging Applications","authors":"Qingrong Liang, Guozhong Zheng, Shuaiwei Fan, Liu Yang, Shoujun Zheng","doi":"10.1002/adma.202416117","DOIUrl":"https://doi.org/10.1002/adma.202416117","url":null,"abstract":"Through the stacking technique of 2D materials, the interfacial polarization can be switched by an interlayer sliding, known as sliding ferroelectricity, which is advantageous in ultra-thin thickness, high switching speed, and high fatigue resistance. However, uncovering the relationship between the sliding path and the polarization state in rhombohedral-stacked materials remains a challenge, which is the key to 2D sliding ferroelectricity. Here, layer-dependent multidirectional sliding ferroelectricity in rhombohedral-stacked InSe (γ-InSe) is reported via dual-frequency resonance tracking piezoresponse force microscopy and conductive atomic force microscopy. The graphene/γ-InSe/graphene tunneling device exhibits a tunable bulk photovoltaic effect with a photovoltaic current density of ≈15 mA cm−2 due to multiple polarization states. The generation of dome-like domain walls is observed experimentally, which is attributed to the multidirectional sliding-induced domains based on the theoretical calculations. Furthermore, the ferroelectric polarization in γ-InSe ensures that the tunneling device has a high photo responsivity of ≈255 A W−1 and a fast response time for real-time imaging. The work not only provides insights into the multidirectional sliding ferroelectricity of rhombohedral-stacked 2D materials but also highlights their potential for tunable photovoltaics and imaging applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"36 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Supramolecular–Quantum Dot System for Broad-Spectrum Detection of Fentanyl Analogs

IF 13.3 2区材料科学

Small Pub Date : 2024-12-20 DOI: 10.1002/smll.202407702

Yanjing Gao, Farbod Shirinichi, Audrey Hansrisuk, Runyao Zhu, Sijie Xian, Marya Lieberman, Matthew J. Webber, Yichun Wang

{"title":"A Supramolecular–Quantum Dot System for Broad-Spectrum Detection of Fentanyl Analogs","authors":"Yanjing Gao, Farbod Shirinichi, Audrey Hansrisuk, Runyao Zhu, Sijie Xian, Marya Lieberman, Matthew J. Webber, Yichun Wang","doi":"10.1002/smll.202407702","DOIUrl":"https://doi.org/10.1002/smll.202407702","url":null,"abstract":"Synthetic opioids, especially fentanyl and its analogs, have created an epidemic of abuse and significantly increased overdose deaths in the United States. Current detection methods have drawbacks in their sensitivity, scalability, and portability that limit field-based application to promote public health and safety. The need to detect trace amounts of fentanyl in complex mixtures with other drugs or interferents, and the continued emergence of new fentanyl analogs, further complicates detection. Accordingly, there is an urgent need to develop convenient, rapid, and reliable sensors for fentanyl detection. In this study, a sensor is prepared based on competitive displacement of a fluorescent dye from the cavity of a supramolecular macrocycle, with subsequent fluorescence quenching from graphene quantum dots. This approach can detect and quantify small quantities of fentanyl along with 58 fentanyl analogs, including highly potent variants like carfentanil that are of increasing concern. Detection of these agents is possible even at 0.01 mol% in the presence of common interferents. This simple, rapid, reliable, sensitive, and cost-effective approach couples supramolecular capture with graphene quantum dot nanomaterial quenchers to create a tool with the potential to advance public health and safety in the context of field-based detection of drugs in the fentanyl class.","PeriodicalId":228,"journal":{"name":"Small","volume":"53 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0