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A mild, configurable, flexible CoNi-LDH（v）/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation

Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue Cheng Dingsheng Wu Hao Gao Qingqing Wang Pengfei Lv sam s.Yoon Qufu Wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University school of Mechanical Engineering Korea University

Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-LDH） as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-LDH nanosheets enriched with H vacancies (CoNi-LDH（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-LDH（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnsO4electrolyte （pH=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high discharging *** abundant H vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-LDH（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery H vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

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synthesis of Co3O4 Nanoparticles Wrapped Within Full Carbon Matrix as an Anode Material for Lithium Ion Batteries

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Acta Metallurgica sinica(English Letters) 2018年第2期31卷 164-170页

作者： subhalaxmi Mohapatra shantikumar V.nair Alok Kumar Rai Amrita Centre for Nanosciences and Molecular Medicine Amrita Vishwa Vidyapeetham Amrita University Kochi Kerala 682041 India

A facile polyol-assisted pyro-synthesis method was used to synthesize Co3O4 nanoparticles embedded into carbon matrix without using any conventional carbon source. The surface analysis by scanning electron microscopy showed that the Co3O4 nanoparticles（-20 ± 5 nm） are tightly enwrapped within the carbon matrix. CHN analysis determined the carbon content was only 0.11% in the final annealed sample. The Co3O4@carbon exhibited high capacities and excellent cycling performance as an anode at various current rates（such as 914.4 and 515.5 mAh g^-1 at 0.25 and1.0 C, respectively, after 50 cycles; 318.2 mAh g^-1 at a high current rate of 5.0 C after 25 cycles）. This superior electrochemical performance of the electrode can be attributed to the various aspects, such as,（1） the existence of carbon matrix, which acts as a flexible buffer to accommodate the volume changes during Li^＋ion insertion/deinsertion and facilitates the fast Li^＋and electron transfer and（2） the anchoring of Co3O4 nanoparticles within the carbon matrix prevents particles agglomeration.

关键词： Co3O4 Carbon matrix Pyro-synthesis Anode Lithium ion battery

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Impact of Zika virus non-structural protein mutations on hippocampal damage

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.G.Cassiano Roney s.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,its impact goes beyond fetal and neonatal abnormalities,also affecting the central nervous system(CNs)in both children and adults,leading to enduring cognitive and behavioral impairments.

关键词： damage fetal neonatal

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Machine learned interatomic potentials using random features

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npj Computational Materials 2022年第1期8卷 48-57页

作者： Gurjot Dhaliwal Prasanth B.nair Chandra Veer singh Department of Mechanical and Industrial Engineering University of Toronto5 King’s College RdTorontoM5S 3G8ONCanada Institute for Aerospace studies University of Toronto4925 Dufferin StTorontoM3H 5T6ONCanada Department of Materials science and Engineering University of Toronto184 College StTorontoM5S 3E4ONCanada

We present a method to model interatomic interactions such as energy and forces in a computationally efficient *** proposed model approximates the energy/forces using a linear combination of random features,thereby enabling fast parameter estimation by solving a linear least-squares *** discuss how random features based on stationary and non-stationary kernels can be used for energy approximation and provide results for three classes of materials,namely two-dimensional materials,metals and *** and energy predictions made using the proposed method are in close agreement with density functional theory calculations,with training time that is 96%lower than standard kernel *** Dynamics calculations using random features based interatomic potentials are shown to agree well with experimental and density functional theory *** frequencies as computed by random features based interatomic potentials are within 0.1%of the density functional theory ***,the proposed random features-based potential addresses scalability issues encountered in this class of machine learning problems.

关键词： random stationary interatomic

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Evidence for a sequential transfer of iron amongst ferritin, transferrin and transferrin receptor during duodenal absorption of iron in rat and human

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World Journal of Gastroenterology 2007年第7期13卷 1042-1052页

作者： Vasantha L Kolachala B sesikeran K Madhavan nair Department of Medicine Emory University Atlanta GA United States National Institute of Nutrition Indian Council of Medical Research Jamai-Osmania PO Hyderabad 500007 India

AIM: To elucidate the sequential transfer of iron amongst ferritin, transferrin and transferrin receptor under various iron status conditions. METHODs: Incorporation of 59Fe into mucosal and luminal proteins was carried out in control WKY rats. The sequential transfer of iron amongst ferritin, transferrin and transferrin receptor was carried out in iron deficient, control and iron overloaded rats. The duodenal proteins were subjected to immunoprecipitation and quantitation by specific ELIsA and in situ localization by microautoradiography and immunohistochemistry in tandem duodenal sections. Human duodenal biopsy (n = 36) collected from subjects with differing iron status were also stained for these proteins. REsULTs: Ferritin was identified as the major protein that incorporated iron in a time-dependent manner in the duodenal mucosa. The concentration of mucosal ferritin was significantly higher in the iron excess group compared to control, iron deficient groups (731.5 ± 191.96 vs 308.3 ± 123.36, 731.5 ± 191.96 vs 256.0 ± 1.19, P sferrin which was significantly higher than the mucosal did not differ among the groups (10.9 ± 7.6 vs 0.87 ± 0.79, 11.1 ± 10.3 vs 0.80 ± 1.20, 6.8 ± 4.7 vs 0.61 ± 0.63, P situ grading of proteins and iron, and their superimposition, suggested the occurrence of a sequential transfer of iron. This was demonstrated to occur through the initial binding of iron to luminal transferrin then to absorptive cell surface transferrin receptors. The staining intensity of these proteins variedaccording to the iron nutrition in humans, with intense staining of transferrin receptor observed in iron deficient subjects. CONCLUsION: It is concluded that the intestine takes up iron through a sequential transfer involving interaction of luminal transferrin, transferrin-transferrin receptor and ferritin.

关键词： Mucosa Lumen Iron-binding proteins

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Role of AXL in invasion and drug resistance of colon and breast cancer cells and its association with p53 alterations

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World Journal of Gastroenterology 2017年第19期23卷 3440-3448页

作者： Wael M Abdel-Rahman Noura A Al-khayyal Vidhya A nair s R Aravind Maha saber-Ayad Department of Medical Laboratory sciences College of Health Sciences and Sharjah Institute for Medical ResearchUniversity of Sharjah College of Medicine and sharjah Institute for Medical Research University of Sharjah Environment and Cancer Research Group Sharjah Institute for Medical ResearchUniversity of Sharjah Department of Basic Medical sciences College of Medicineand Sharjah Institute for medical ResearchUniversity of SharjahSharjah Cairo University

To characterize AXL receptor tyrosine kinase (AXL) expression in relationship to tumor protein P53 (TP53 gene, p53 protein) and its role in tumor invasion and response to *** used 14 cell lines, including 3 isogenic pairs carrying mutant/knockout p53, to gain insight into the relationship between AXL and TP53. These included HCT116, HCT116.p53 mutant, RKO, and RKO.p53sup>-/-sup> lines (all from colon cancers) as well as breast cancer cell lines MCF7 and 1001 (MCF7-p53 mutant clone). HeLa cell line was used as a positive control for epithelial to mesenchymal transition (EMT). AXL expression was determined by Western blotting using rabbit monoclonal antibody clone C89E7. AXL siRNA silencing was performed and followed by collagen invasion assay. Cell viability analysis using the sulforhodamine B assay and the invasion assay were performed after exposure to chemotherapeutic agents (doxorubicin for breast cancer cells; 5FU or irinotecan for colon cancer cells).REsULTsWe showed that the introduction of p53 mutations or knockout increased expression levels of AXL in isogenic cells compared to the matching p53 wild-type parental cells. Overall, we found a trend for correlation between the potential EMT candidate AXL, p53 alterations, and EMT markers in colorectal and breast cancers. The expression of AXL in RKO cells, a rare colon cancer cell line with inactive Wnt signaling, suggests that the AXL oncogene might provide an alternative genetic pathway for colorectal carcinogenesis in the absence of Wnt signaling activation and TP53 mutation. AXL silencing in the TP53 mutant isogenic cell lines 1001, HCT116.p53 mutant and RKO.P53sup>-/-sup> was > 95% efficient and the silenced cells were less invasive compared to the parental TP53 wild-type cells. AXL silencing showed a subtle trend to restore colon cancer cell sensitivity to 5FU or irinotecan. Importantly, AXL expressing cells developed more invasive potential after exposure to chemotherapy compared to th

关键词： AXL Breast cancer Chemotherapy Colon cancer Invasion

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Facile fabrication of TiO_2 nanoparticle–TiO_2 nanofiber composites by co-electrospinning–electrospraying for dye-sensitized solar cells

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Journal of Energy Chemistry 2015年第6期24卷 762-769页

作者： G.s.Anjusree T.G.Deepak shantikumar V nair A.sreekumaran nair Nanosolar Division Amrita Centre for Nanosciences & Molecular MedicineAmrita Institute of Medical Sciences (AIMS)Amrita Vishwa Vidyapeetham UniversityAIMS PO

We report a facile method for the fabrication of TiO2 nanofiber-nanoparticle composite （FP） via. simulta- neous electrospraying and electrospinning for dye-sensitized solar cell （DsC） applications. The loading of nanoparticles on the fibers is controlled by varying their feed rates during electrospinning. The FP composites having three different particle loading are prepared by the methodology and the FP with the highest particle loading （denoted as FP-3 in the manuscript） showed the best overall efficiency of 9.15% in comparison to the other compositions of the FP （FP-2, 8.15% and FP-1, Z51%, respectively） and nanofibers （F） and nanoparticles （P） separately （7.21 and 7.81, respectively）. All the material systems are characterized by spec- troscopy, microscopy, surface area measurements and the devices are characterized by current-voltage （I-V）, incident photon-to-current conversion efficiency （IPCE）, electrochemical impedance measurements, etc. I-V, dye-loading and reflectance measurements throw light on the overall performance of the DsC devices.

关键词： TiO2 nanofiber-nanoparticle composites Co-electrospraying-electrospinning Dye-sensitized solar cell Current-voltage measurements

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Utilization of residual fatty acids in matter organic non-glycerol from a soy biodiesel plant in filaments used for 3D printing

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Journal of Bioresources and Bioproducts 2023年第3期8卷 215-223页

作者： sreesha Malayil Athira nair surendran Kunal Kate Jagannadh satyavolu Conn Center for Renewable Energy Research University of LouisvilleLouisville 40292KYUSA Materials Innovation Guild Department of Mechanical EngineeringUniversity of LouisvilleLouisville 40292KYUSA

Matter organic non-glycerol(MONG)is a considerable waste output(20%−25%of crude glyc-erol)typically landfilled by soy biodiesel *** this work,soy MONG was characterized for potential use as a copolymer to produce filaments for 3D printing with an intent to add value and redirect it from *** a copolymer,MONG was evaluated to reduce the synthetic polymer content of the natural fiber composites(NFC).Even though the general thermal behavior of the MONG was compared to that of a thermoplastic polymer in composite applications,it is depen-dent on the composition of the MONG,which is a variable depending on plant discharge *** order to improve the thermal stability of MONG,we evaluated two pretreatments(acid and acid+peroxide).The acid+peroxide pretreatment resulted in a stabilized paste with decreased soap content,increased crystallinity,low molecular weight small chain fatty acids,and a sta-ble blend as a copolymer with a thermoplastic *** treatment increased formic acid(17.53%)in MONG,along with hydrogen peroxide,led to epoxidation exhibited by the increased concentration of oxirane(5.6%)evaluating treated MONG as a copolymer in polymer processing and 3D printing.

关键词： Matter organic non-glycerol soy biodiesel waste Polymer composite Epoxidation soap splitting Fatty acid

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synthesis,optimization and characterization of biochar based catalyst from sawdust for simultaneous esterification and transesterification

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Chinese Journal of Chemical Engineering 2018年第12期26卷 2654-2663页

作者： suchith Chellappan Vaishakh nair sajith V. Aparna K. Department of Chemical Engineering National Institute of TechnologyCalicut India Institute of Physical Chemistry Polish Academy of Sciences school of Nano science and Technology National Institute of Technology

The development of a benign environmental catalyst for the generation of biodiesel is an area of importance to reduce the overall usage of fossil fuels. In the current work, biochar was produced by slow pyrolysis of Irul wood sawdust. The optimization for biochar generation was carried out for different reaction temperatures and heating durations. The biochar was used to prepare solid acid catalysts by sulfonation process. The characterization of biochar and the sulfonated catalyst were carried out using Elemental analysis, Fourier Transform Infrared spectroscopy(FTIR), Powder X-ray Diffraction(XRD), Thermo Gravimetric Analysis(TGA), scanning Electron Microscopy(sEM) and surface area analyzer(BET). The characterization results showed that sulfonation of biochar resulted in biochar based solid acid catalyst containing various functional acidic groups like weak acidic\\OH groups, strong acidic\\COOH and sO3 H groups. The total acid density and sulfonic acid group density of catalyst were estimated and showed excellent acidic sites concentration which gives a good catalytic activity for biodiesel production through simultaneous esterification and transesterification. The enhanced catalytic activity is due to the high acid density of sO3 H groups and the reactant accessibility towards acidic sites as well as the strong affinity between the hydrophilic reactants and the neutral OH groups which are bonded with the polycyclic aromatic carbon rings. The performance of biochar catalyst for the production of biodiesel was evaluated by comparing the yield obtained. The FTIR and Gas Chromatography–Mass spectroscopy(GC–Ms) were also carried out for the analysis of biodiesel produced.

关键词： Biochar Biochar based catalyst Pyrolysis Biomass sulfonation

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Biology of severe acute respiratory syndrome coronavirus 2(sARs-CoV-2)and the humoral immunoresponse:a systematic review of evidence to support global policy-level actions and research

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Global Health Journal 2022年第1期6卷 38-43页

作者： shalini nair Xinguang Chen Department of Epidemiology University of Florida2004 Mowry RoadGainesvilleFlorida32610USA

Background Both population-level epidemiological data and individual-level biological data are needed to control the coronavirus disease 2019(COVID-19)***-level data are widely available and efforts to combat COVID-19 have generated proliferate data on the biology and immunoresponse to the causative pathogen,severe acute respiratory syndrome coronavirus 2(sARs-CoV-2).However,there remains a paucity of systemized data on this *** In this review,we attempt to extract systemized data on the biology and immuno-response to sARs-CoV-2 from the most up-to-date peer-reviewed *** will focus on the biology of the virus and immunological variations that are key for determining long-term immunity,transmission potential,and *** sources and Methods Peer-reviewed articles were sourced from the PubMed database and by snowballing search of selected *** terms included:“Novel Coronavirus”OR“COVID-19”OR“sARs-CoV-2”OR“2019-nCoV”AND“Immunity”OR“Immune Response”OR“Antibody Response”OR“Immunologic Response”.studies published from December 31,2019 to December 31,2020 were *** ensure validity,papers in pre-print were *** Of 2889 identified papers,36 were *** from these studies suggests early seroconversion in patients infected with *** titers appear to markedly increase two weeks after infection,followed by a plateau.A more robust immune response is seen in patients with severe COVID-19 as opposed to mild or asymptomatic *** trend persists with regard to the length of antibody ***,overall immunity appears to wane within two to three months *** Findings of this study indicate that immune responses to sARs-CoV-2 follow the general pattern of viral *** generated through natural infection appears to be short,suggesting a need for long-term efforts to control the *** testing will be essential to gauge t

关键词： severe acute respiratory syndrome coronavirus 2(sARs-CoV-2) Coronavirus disease 2019(COVID-19) Immunoresponse Antibody Global health Health policy Decision-making serology testing

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