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Manab Kundu,Gopalu Karunakaran,Evgeny Kolesnikov,Voynova Elena Sergeevna,Shilpa Kumari,Mikhail V. Gorshenkov,Denis Kuznetsov 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.59 No.-
The hollow NiCo2O4 nano-spheres (∼300–500 nm) are synthesized by ultrasonic spray pyrolysis method and used as electrode for high-performance supercapacitor (SC) and lithium-ion battery (LIB). When used in SC application, the hollow NiCo2O4 deliver a specific capacitance of ∼1000 F g−1 even after 3000 charge–discharge cycles. In addition, as an anode material for LIBs, it exhibits admirable high capacity values of 763 and 516 mA h g−1 after 1000 cycles at a current density of 1500 and 3000 mAh g−1, respectively. The excellent electrochemical performance of this hollow NiCo2O4 nano-sphere indicates its potential applications for next generation SCs and LIBs.
Antibacterial mesoporous Sr-doped hydroxyapatite nanorods synthesis for biomedical applications
Gopalu Karunakaran,Eun-Bum Cho,Keerthanaa Thirumurugan,Govindan Suresh Kumar,Evgeny Kolesnikov,Selvakumar Boobalan Techno-Press 2023 Advances in nano research Vol.14 No.6
Postsurgical infections are caused by implant-related pathogenic microorganisms that lead to graft rejection. Hence, an intrinsically antibacterial material is required to produce a biocompatible biomaterial with osteogenic properties that could address this major issue. Hence, this current research aims to make strontium-doped hydroxyapatite nanorods (SrHANRs) via an ethylene diamine tetraacetic acid (EDTA)-enable microwave mediated method using Anodontia alba seashells for biomedical applications. This investigation also perceives that EDTA acts as a soft template to accomplish Sr-doping and mesoporous structures in pure hydroxyapatite nanorods (HANRs). The X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis reveals the crystalline and mesoporous structures, and Brunauer-Emmett-Teller (BET) indicates the surface area of all the samples, including pure HANRs and doped HANRs. In addition, the biocidal ability was tested using various implant-related infectious bacteria pathogens, and it was discovered that Sr-doped HANRs have excellent biocidal properties. Furthermore, toxicity evaluation using zebrafish reports the non-toxic nature of the produced HANRs. Incorporating Sr<sup>2+</sup> ions into the HAp lattice would enhance biocompatibility, biocidal activity, and osteoconductive properties. As a result, the biocompatible HANRs materials synthesized with Sr-dopants may be effective in bone regeneration and antibacterial in-built implant applications.