1
|
Singha Roy S, Madhu R, Bera K, Nagappan S, Dhandapani HN, De A, Kundu S. Tuning the Activity and Stability of CoCr-LDH by Forming a Heterostructure on Surface-Oxidized Nickel Foam for Enhanced Water-Splitting Performance. ACS Appl Mater Interfaces 2024; 16:5965-5976. [PMID: 38263906 DOI: 10.1021/acsami.3c17540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
The development of low-cost, efficient catalysts for electrocatalytic water splitting to generate green hydrogen is a hot topic among researchers. Herein, we have developed a highly efficient heterostructure of CoCr-LDH on NiO on nickel foam (NF) for the first time. The preparation strategy follows the simple annealing of a cleaned NF without using any Ni salt precursor, followed by the growth of CoCr-LDH nanosheets over the surface-oxidized NF. The CoCr-LDH/NiO/NF catalyst shows excellent electrocatalytic activity and stability toward oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in a 1 M KOH solution. For OER, only 253 mV and for HER, only 185 mV overpotentials are required to attain a 50 mA cm-2 current density. Also, the long-term stability of both the OER and HER for 60 h proves its robustness. The turnover frequency value for the OER increased 1.85 times after the heterostructure formation compared to bare CoCr-LDH. The calculated Faradaic efficiency values of 97.4 and 94.75% for the OER and HER revealed the high intrinsic activity of the heterostructure. Moreover, the heterostructure only needs 1.57 V of cell voltage when acting as both the anode and the cathode to achieve a 10 mA cm-2 current density. The long-term stability of 60 h for the total water-splitting process proves its excellent performance. Several systematic pre- and post-experiment characterizations prove its durable nature. These excellent OER and HER activities and stabilities are attributed to the surface-modified electronic structure and thin nanosheet-like surface morphology of the heterostructure. The thin, wide, and modified surface of the catalyst facilitates the diffusion of ions (reactants) and gas molecules (products) at the electrode/electrolyte interface. Furthermore, electron transfer from n-type CoCr-LDH to p-type NiO results in enhanced electronic conductivity. This study demonstates the effective design of a self-supported heterostructure with minimal synthetic steps to generate a bifunctional electrocatalyst for water splitting, contributing to the greater cause of green hydrogen economy.
Collapse
Affiliation(s)
- Suprobhat Singha Roy
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Aditi De
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| |
Collapse
|
2
|
Kuchipudi A, Das A, Bera K, Panda SK, Sreedhar G, Kundu S. Empowering the Water Oxidation Activity of the Bimetallic Metal-Organic Framework by Annexing Gold Nanoparticles over the Catalytic Surface. Inorg Chem 2023; 62:21265-21276. [PMID: 38073275 DOI: 10.1021/acs.inorgchem.3c03351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
Electrocatalytic water splitting to an anodic oxygen evolution reaction (OER) and a cathodic hydrogen evolution reaction (HER) is believed to be the most important application for sustainable hydrogen generation. Being a four-electron, four-proton transfer process, the OER plays the main obstacle for the same. Therefore, designing an effective electrocatalyst to minimize the activation energy barrier for the OER is a research topic of prime importance. The metal-organic framework (MOF) with a highly porous network is considered an appropriate candidate for the OER in alkaline conditions. Apart from several MOFs, the bimetallic one has an advantageous electrocatalytic performance due to the synergistic electronic interaction between two metal ions. However, most bimetallic MOFs have an obstacle to electrocatalytic application due to their low conductive nature, and therefore, they possess a barrier for charge transfer kinetics at the interface. Surface functionalization via various nanoparticles (NPs) is believed to be the most effective strategy for nullifying the conductive issue. In this work, we have designed a CoNi-based bimetallic MOF that was surface-functionalized by Au NPs (Au@CoNi-Bpy-BTC) for the OER under alkaline conditions. Au@CoNi-Bpy-BTC required an overpotential of just 330 mV, which is 56 mV lower as compared to the pristine MOF. Impedance analysis confirms an improved conductivity and charge transfer at the interface, where Au@CoNi-Bpy-BTC possesses a lower Rct value than CoNi-Bpy-BTC materials. Moreover, the Au-decorated MOF shows an 8.5 times increase in the TOF value compared to the pristine MOF. Therefore, this noble strategy toward the surface functionalization of MOFs via noble metal NPs is believed to be the most effective strategy for developing effective electrocatalysts for electrocatalytic application in energy-related fields. Overall, this report displays an exceptional correlation between the decorated NPs over the MOF surface, which can regulate the OER activity, as confirmed by experimental analysis.
Collapse
Affiliation(s)
- Anup Kuchipudi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electroplating and Metal Finishing (EMF) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ankit Das
- Center for Education (CFE), CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subhendu K Panda
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electroplating and Metal Finishing (EMF) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Gosipathala Sreedhar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electroplating and Metal Finishing (EMF) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
3
|
Lasorsa A, Bera K, Malki I, Dupré E, Cantrelle FX, Merzougui H, Sinnaeve D, Hanoulle X, Hritz J, Landrieu I. Conformation and Affinity Modulations by Multiple Phosphorylation Occurring in the BIN1 SH3 Domain Binding Site of the Tau Protein Proline-Rich Region. Biochemistry 2023. [PMID: 37167199 DOI: 10.1021/acs.biochem.2c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
An increase in phosphorylation of the Tau protein is associated with Alzheimer's disease (AD) progression through unclear molecular mechanisms. In general, phosphorylation modifies the interaction of intrinsically disordered proteins, such as Tau, with other proteins; however, elucidating the structural basis of this regulation mechanism remains challenging. The bridging integrator-1 gene is an AD genetic determinant whose gene product, BIN1, directly interacts with Tau. The proline-rich motif recognized within a Tau(210-240) peptide by the SH3 domain of BIN1 (BIN1 SH3) is defined as 216PTPP219, and this interaction is modulated by phosphorylation. Phosphorylation of T217 within the Tau(210-240) peptide led to a 6-fold reduction in the affinity, while single phosphorylation at either T212, T231, or S235 had no effect on the interaction. Nonetheless, combined phosphorylation of T231 and S235 led to a 3-fold reduction in the affinity, although these phosphorylations are not within the BIN1 SH3-bound region of the Tau peptide. Using nuclear magnetic resonance (NMR) spectroscopy, these phosphorylations were shown to affect the local secondary structure and dynamics of the Tau(210-240) peptide. Models of the (un)phosphorylated peptides were obtained from molecular dynamics (MD) simulation validated by experimental data and showed compaction of the phosphorylated peptide due to increased salt bridge formation. This dynamic folding might indirectly impact the BIN1 SH3 binding by a decreased accessibility of the binding site. Regulation of the binding might thus not only be due to local electrostatic or steric effects from phosphorylation but also to the modification of the conformational properties of Tau.
Collapse
Affiliation(s)
- Alessia Lasorsa
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| | - Krishnendu Bera
- CEITEC MU, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Idir Malki
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
| | - Elian Dupré
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| | - François-Xavier Cantrelle
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| | - Hamida Merzougui
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
| | - Davy Sinnaeve
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| | - Xavier Hanoulle
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| | - Jozef Hritz
- CEITEC MU, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czech Republic
| | - Isabelle Landrieu
- CNRS EMR9002 Integrative Structural Biology, Lille F-59000, France
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille F-59000, France
| |
Collapse
|
4
|
Sangeetha K, Kumar D, Selvasundarasekar SS, Karmakar A, Madhu R, Bera K, Dhandapani HN, Nagappan S, Chakraborty S, Kundu S. Vacancy Fused Multiple Layers of Copper Sulfoselenide Superstructures: A Propitious HER Electrocatalyst in Acid. Catal Sci Technol 2023. [DOI: 10.1039/d2cy01336c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synergistic effect in bi-chalcogenides, an advanced vacancy rich Cu2S-Se@Cu was perceived to be high-efficient and sustainable catalyst towards HER in acid. Interestingly, the selenization of Cu2S@Cu foam creates oxygen...
Collapse
|
5
|
Selvasundarasekar SS, Bijoy TK, Kumaravel S, Karmakar A, Madhu R, Bera K, Nagappan S, Dhandapani HN, Mersal GAM, Ibrahim MM, Sarkar D, Yusuf SM, Lee SC, Kundu S. Effective Formation of a Mn-ZIF-67 Nanofibrous Network via Electrospinning: An Active Electrocatalyst for OER in Alkaline Medium. ACS Appl Mater Interfaces 2022; 14:46581-46594. [PMID: 36194123 DOI: 10.1021/acsami.2c12643] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Finding the active center in a bimetallic zeolite imidazolate framework (ZIF) is highly crucial for the electrocatalytic oxygen evolution reaction (OER). In the present study, we constructed a bimetallic ZIF system with cobalt and manganese metal ions and subjected it to an electrospinning technique for feasible fiber formation. The obtained nanofibers delivered a lower overpotential value of 302 mV at a benchmarking current density of 10 mA cm-2 in an electrocatalytic OER study under alkaline conditions. The obtained Tafel slope and charge-transfer resistance values were 125 mV dec-1 and 4 Ω, respectively. The kinetics of the reaction is mainly attributed from the ratio of metals (Co and Mn) present in the catalyst. Jahn-Teller distortion reveals that the electrocatalytic active center on the Mn-incorporated ZIF-67 nanofibers (Mn-ZIF-67-NFs) was found to be Mn3+ along with the Mn2+ and Co2+ ions on the octahedral and tetrahedral sites, respectively, where Co2+ ions tend to suppress the distortion, which is well supported by density functional theory analysis, molecular orbital study, and magnetic studies.
Collapse
Affiliation(s)
- Sam Sankar Selvasundarasekar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - T K Bijoy
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru560065, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Gaber A M Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | - Mohamed M Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | - Debashish Sarkar
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai400085, India
| | - Seikh Mohammad Yusuf
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai400085, India
| | - Seung-Cheol Lee
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru560065, India
- Electronic Materials Research Center, KIST, Seoul136-791, South Korea
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| |
Collapse
|
6
|
Bera K, Madhu R, Dhandapani HN, Nagappan S, De A, Kundu S. Accelerating the Electrocatalytic Performance of NiFe-LDH via Sn Doping toward the Water Oxidation Reaction under Alkaline Condition. Inorg Chem 2022; 61:16895-16904. [PMID: 36221930 DOI: 10.1021/acs.inorgchem.2c02947] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To generate green hydrogen by water electrolysis, it is vital to develop highly efficient electrocatalysts for the oxygen evolution reaction (OER). The utilization of various 3d transition metal-based layered double hydroxides (LDHs), especially NiFe-LDH, has gained vast attention for OER under alkaline conditions. However, the lack of a proper electronic structure of the NiFe-LDH and low stability under high-pH conditions limit its large-scale application. To overcome these difficulties, in this study, we constructed an Sn-doped NiFe-LDH material using a simple wet-chemical method. The doping of Sn will synergistically increase the active surface sites of NiFe-LDH. The highly active NiFe-LDH Sn0.015(M) shows excellent OER activity by requiring an overpotential of 250 mV to drive 10 mA/cm2 current density, whereas the bare NiFe-LDH required an overpotential of 295 mV at the same current density. Also, NiFe-LDH Sn0.015(M) shows excellent long-term stability for 50 h in 1 M KOH and also exhibits a higher TOF value of 0.495 s-1, which is almost five times higher than that of bare NiFe-LDH. This study highlights Sn doping as an effective strategy for the development of low-cost, effective, stable, self-supported electrocatalysts with a high current density for improved OER and other catalytic applications in the near future.
Collapse
Affiliation(s)
- Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Aditi De
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
7
|
Das NR, Bera K, Sharma T, Toropova AP, Toropov AA, Achary PGR. Computational approach for building QSAR models for inhibition of HIF-1A. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Verma R, Hill VB, Statsevych V, Bera K, Correa R, Leo P, Ahluwalia M, Madabhushi A, Tiwari P. Stable and Discriminatory Radiomic Features from the Tumor and Its Habitat Associated with Progression-Free Survival in Glioblastoma: A Multi-Institutional Study. AJNR Am J Neuroradiol 2022; 43:1115-1123. [PMID: 36920774 PMCID: PMC9575418 DOI: 10.3174/ajnr.a7591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/13/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Glioblastoma is an aggressive brain tumor, with no validated prognostic biomarkers for survival before surgical resection. Although recent approaches have demonstrated the prognostic ability of tumor habitat (constituting necrotic core, enhancing lesion, T2/FLAIR hyperintensity subcompartments) derived radiomic features for glioblastoma survival on treatment-naive MR imaging scans, radiomic features are known to be sensitive to MR imaging acquisitions across sites and scanners. In this study, we sought to identify the radiomic features that are both stable across sites and discriminatory of poor and improved progression-free survival in glioblastoma tumors. MATERIALS AND METHODS We used 150 treatment-naive glioblastoma MR imaging scans (Gadolinium-T1w, T2w, FLAIR) obtained from 5 sites. For every tumor subcompartment (enhancing tumor, peritumoral FLAIR-hyperintensities, necrosis), a total of 316 three-dimensional radiomic features were extracted. The training cohort constituted studies from 4 sites (n = 93) to select the most stable and discriminatory radiomic features for every tumor subcompartment. These features were used on a hold-out cohort (n = 57) to evaluate their ability to discriminate patients with poor survival from those with improved survival. RESULTS Incorporating the most stable and discriminatory features within a linear discriminant analysis classifier yielded areas under the curve of 0.71, 0.73, and 0.76 on the test set for distinguishing poor and improved survival compared with discriminatory features alone (areas under the curve of 0.65, 0.54, 0.62) from the necrotic core, enhancing tumor, and peritumoral T2/FLAIR hyperintensity, respectively. CONCLUSIONS Incorporating stable and discriminatory radiomic features extracted from tumors and associated habitats across multisite MR imaging sequences may yield robust prognostic classifiers of patient survival in glioblastoma tumors.
Collapse
Affiliation(s)
- R Verma
- From the Department of Biomedical Engineering (R.V., K.B., R.C., P.L.), Case Western Reserve University, Cleveland, Ohio .,Alberta Machine Intelligence Institute (R.V.), Edmonton, Alberta
| | - V B Hill
- Department of Neuroradiology (V.B.H.), Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - V Statsevych
- Brain Tumor and Neuro-Oncology Center (V.S.), Cleveland Clinic, Cleveland, Ohio
| | - K Bera
- From the Department of Biomedical Engineering (R.V., K.B., R.C., P.L.), Case Western Reserve University, Cleveland, Ohio
| | - R Correa
- From the Department of Biomedical Engineering (R.V., K.B., R.C., P.L.), Case Western Reserve University, Cleveland, Ohio
| | - P Leo
- From the Department of Biomedical Engineering (R.V., K.B., R.C., P.L.), Case Western Reserve University, Cleveland, Ohio
| | - M Ahluwalia
- Miami Cancer Institute (M.A.), Miami, FL and Herbert Wertheim College of Medicine, Florida International University, Florida
| | - A Madabhushi
- Department of Biomedical Engineering (A.M.), Emory University, Atlanta Veterans Administration Medical Center
| | - P Tiwari
- Departments of Radiology and Biomedical Engineering (P.T.), University of Wisconsin Madison, Wisconsin
| |
Collapse
|
9
|
Selvasundarasekar SS, Bijoy TK, Kumaravel S, Karmakar A, Madhu R, Bera K, Nagappan S, Dhandapani HN, Lee SC, Kundu S. Constructing electrospun spinel NiFe 2O 4 nanofibers decorated with palladium ions as nanosheets heterostructure: boosting electrocatalytic activity of HER in alkaline water electrolysis. Nanoscale 2022; 14:10360-10374. [PMID: 35708550 DOI: 10.1039/d2nr02203f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of efficient electrocatalysts for the water splitting process and understanding their fundamental catalytic mechanisms are highly essential to achieving high performance in energy conversion technologies. Herein, we have synthesised spinel nickel ferrite nanofibers (NiFe2O4-NFs) via an electrospinning (ES) method followed by a carbonization process. The resultant fiber was subjected to electrocatalytic water splitting reactions in alkaline medium. The catalytic efficiency of the NiFe2O4-NFs in OER was highly satisfactory. But it is not high enough to catalyse the HER process. Hence, palladium ions were decorated as nanosheets on NiFe2O4-NFs as a heterostructure to improve the catalytic efficiency for HER. Density functional theory (DFT) confirms that the addition of palladium to NiFe2O4-NFs helps to reduce the effect of catalyst poisoning and improve the efficiency of the catalyst. In an alkaline hybrid electrolyser, the required cell voltage was observed as 1.51 V at a fixed current density of 10 mA cm-2.
Collapse
Affiliation(s)
- Sam Sankar Selvasundarasekar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - T K Bijoy
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru-560065, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| | - Seung-Cheol Lee
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru-560065, India
- Electronic Materials Research Center, KIST, Seoul 136-791, South Korea
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India.
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India
| |
Collapse
|
10
|
Subadini S, Panigrahy RS, Gupta NK, Bera K, Sahoo H. Impact of Chromate and Dichromate on Lysozyme Stability: A Spectroscopic and Molecular Docking Investigation. LUMINESCENCE 2022; 37:876-882. [PMID: 35305059 DOI: 10.1002/bio.4231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/05/2022] [Accepted: 03/16/2022] [Indexed: 11/06/2022]
Abstract
A comparative study of interaction between Lysozyme (Lyz) with two hexavalent chromate ions; chromate and dichromate; which are prevalently known for their toxicity, was investigated using different spectroscopic techniques along with molecular docking study. Both steady-state and time-resolved studies revealed that the addition of chromate/dichromate is responsible for strong quenching of intrinsic fluorescence in Lyz and the quenching is caused by both static and dynamic quenching mechanism. Different binding and thermodynamic parameters were also calculated at different temperatures from the intrinsic fluorescence of Lyz. The conformational change in Lyz and thermodynamic parameters obtained during the course of interaction with chromate/dichromate were well-supported by the molecular docking results.
Collapse
Affiliation(s)
- Suchismita Subadini
- Biophysical and Protein Chemistry Lab, Department of Chemistry, NIT Rourkela, Rourkela, India
| | | | - Nishesh Kumar Gupta
- Korea Institute of Civil Engineering and Building Technology, University of Science and Technology, Republic of Korea
| | - Krishnendu Bera
- CEITEC MU, Masaryk University, Kamenice 753/5, Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, Brno, Czech Republic
| | - Harekrushna Sahoo
- Biophysical and Protein Chemistry Lab, Department of Chemistry, NIT Rourkela, Rourkela, India.,Center of Nanomaterials, NIT Rourkela, Rourkela, India
| |
Collapse
|
11
|
Bera K, Karmakar A, Kumaravel S, Sam Sankar S, Madhu R, N Dhandapani H, Nagappan S, Kundu S. Vanadium-Doped Nickel Cobalt Layered Double Hydroxide: A High-Performance Oxygen Evolution Reaction Electrocatalyst in Alkaline Medium. Inorg Chem 2022; 61:4502-4512. [PMID: 35230844 DOI: 10.1021/acs.inorgchem.2c00093] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Vast attention from researchers is being given to the development of suitable oxygen evolution reaction (OER) electrocatalysts via water electrolysis. Being highly abundant, the use of transition-metal-based OER catalysts has been attractive more recently. Among the various transition-metal-based electrocatalysts, the use of layered double hydroxides (LDHs) has gained special attention from researchers owing to their high stability under OER conditions. In this work, we have reported the synthesis of trimetallic NiCoV-LDH via a simple wet-chemical method. The synthesized NiCoV-LDH possesses aggregated sheet-like structures and is screened for OER studies in alkaline medium. In the study of OER activity, the as-prepared catalyst demanded 280 mV overpotential and this was 42 mV less than the overpotential essential for pristine NiCo-LDH. Moreover, doping of a third metal into the NiCo-LDH system might lead to an increase in TOF values by almost three times. Apart from this, the electronic structural evaluation confirms that the doping of V3+ into NiCo-LDH could synergistically favor the electron transfer among the metal ions, which in turn increases the activity of the prepared catalyst toward the OER.
Collapse
Affiliation(s)
- Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
12
|
Madhu R, Karmakar A, Kumaravel S, Sankar SS, Bera K, Nagappan S, Dhandapani HN, Kundu S. Revealing the pH-Universal Electrocatalytic Activity of Co-Doped RuO 2 toward the Water Oxidation Reaction. ACS Appl Mater Interfaces 2022; 14:1077-1091. [PMID: 34951298 DOI: 10.1021/acsami.1c20752] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrocatalytic water splitting has gained vast attention in recent decades for its role in catalyzing hydrogen production effectively as an alternative to fossil fuels. Moreover, the designing of highly efficient oxygen evolution reaction (OER) electrocatalysts across the universal pH conditions was more challengeable as in harsh anodic potentials, it questions the activity and stability of the concerned catalyst. Generally, geometrical engineering and electronic structural modulation of the catalyst can effectively boost the OER activity. Herein, a Co-doped RuO2 nanorod material is developed and used as an OER electrocatalyst at different pH conditions. Co-RuO2 exhibits a lower overpotential value of 238 mV in an alkaline environment (1 M KOH) with a Tafel slope value of 48 mV/dec. On the other hand, in acidic, neutral, and near-neutral environments, it required overpotentials of 328, 453, and 470 mV, respectively, to attain a 10 mA/cm2 current density. It is observed that doping of Co into the RuO2 could synergistically increase the active sites with the enhanced electrophilic nature of Ru4+ to accelerate OER in all of the pH ranges. This study finds the applicability of earth-abundant-based metals like Co to be used in universal pH conditions with a simple doping technique. Further, it assured the stable nature in all pH electrolytes and needs to be further explored with other metals in the future.
Collapse
Affiliation(s)
- Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu 630003, India
| |
Collapse
|
13
|
Bera K, Karmakar A, Karthick K, Sankar SS, Kumaravel S, Madhu R, Kundu S. Enhancement of the OER Kinetics of the Less-Explored α-MnO 2 via Nickel Doping Approaches in Alkaline Medium. Inorg Chem 2021; 60:19429-19439. [PMID: 34821497 DOI: 10.1021/acs.inorgchem.1c03236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Development of a low-cost transition metal-based catalyst for water splitting is of prime importance for generating green hydrogen on an industrial scale. Recently, various transition metal-based oxides, hydroxides, sulfides, and other chalcogenide-based materials have been synthesized for developing a suitable anode material for the oxygen evolution reaction (OER). Among the various transition metal-based catalysts, their oxides have received much consideration for OER, especially in lower pH condition, and MnO2 is one of the oxides that have widely been used for the same. The large variation in the structural disorder of MnO2 and internal resistance at the electrode-electrolyte interfaces have limited its large-scale application. By considering the above limitations of MnO2, here in this work, we have designed Ni-doped MnO2 via a simple wet-chemical synthetic route, which has been successfully applied for OER application in 0.1 M KOH solution. Doping of various quantities of Ni into the MnO2 lattices improved the OER properties, and for achieving 10 mA/cm2 current density, the Ni-doped MnO2 containing 0.02 M of Ni2+ ions (coined as MnO2-Ni0.002(M)) demands only 445 mV overpotential, whereas the bare MnO2 required 610 mV overpotential. It has been proposed that the incorporation of nickel ions into the MnO2 lattices leads to an electron transfer from the Ni3+ ions to Mn4+, which in turn facilitates the Jahn-Teller distortion in the Mn-O octahedral unit. This electron transfer and the creation of a structural disorder in the Mn sites result in the improvization of the OER properties of the MnO2 materials.
Collapse
Affiliation(s)
- Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Kannimuthu Karthick
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
14
|
Kumaravel S, Karthick K, Sam Sankar S, Karmakar A, Madhu R, Bera K, Kundu S. Cover Feature: Recent Progresses in Engineering of Ni and Co based Phosphides for Effective Electrocatalytic Water Splitting (ChemElectroChem 24/2021). ChemElectroChem 2021. [DOI: 10.1002/celc.202101501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sangeetha Kumaravel
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Kannimuthu Karthick
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Selvasundarasekar Sam Sankar
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Arun Karmakar
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Ragunath Madhu
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Krishnendu Bera
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Subrata Kundu
- Electrochemical Process Engineering (EPE) division CSIR-Central Electrochemical Research Institute (CECRI) 630003 Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| |
Collapse
|
15
|
Madhu R, Karmakar A, Karthick K, Sam Sankar S, Kumaravel S, Bera K, Kundu S. Metallic Gold-Incorporated Ni(OH) 2 for Enhanced Water Oxidation in an Alkaline Medium: A Simple Wet-Chemical Approach. Inorg Chem 2021; 60:15818-15829. [PMID: 34601871 DOI: 10.1021/acs.inorgchem.1c02571] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of a highly efficient electrocatalyst for the oxygen evolution reaction (OER) with a lower overpotential and high intrinsic activity is highly challenging owing to its sluggish kinetic behavior. As an alternative to the state-of-the-art OER catalyst, recently, transition-metal-based hydroxide materials have been shown to play important roles for the same. Owing to the high earth abundance of various Ni-based hydroxide and its derivatives, these are known to be highly studied materials for the OER. Herein, we report a simple wet-chemical synthesis of metallic gold-incorporated (by varying the concentration of Au3+ ions) Ni(OH)2 nanosheets as an active and stable electrocatalyst for the OER in 1 M KOH medium. The Au-Ni(OH)2 (2) catalyst demanded a low overpotential of 288 mV to attain a geometric current density of 10 mA/cm2 with a lower Tafel value of 55 mV/dec compared to bare Ni(OH)2 with a lower mass loading of only 0.1 mg/cm2. Tafel slope analysis reveals that the incorporation of metallic gold on the hydroxide surfaces could alter the mechanistic pathways of the overall OER reaction. It has been proposed that the incorporation of metallic gold over the Ni(OH)2 surfaces led to a change in the electronic structure of the electroactive nickel sites (Jahn-Teller distortion), which favors the OER by electronic aspects.
Collapse
Affiliation(s)
- Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Kannimuthu Karthick
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
16
|
Karthick K, Sam Sankar S, Kumaravel S, Karmakar A, Madhu R, Bera K, Kundu S. Advancing the extended roles of 3D transition metal based heterostructures with copious active sites for electrocatalytic water splitting. Dalton Trans 2021; 50:13176-13200. [PMID: 34617532 DOI: 10.1039/d1dt01645h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The replacement of noble metals with alternative electrocatalysts is highly demanded for water splitting. From the exploration of 3D -transition metal based heterostructures, engineering at the nano-level brought more enhancements in active sites with reduced overpotentials for both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). However, recent developments in 3D transition metal based heterostructures like direct growth on external substrates (Ni foam, Cu foam) gave highly impressive activities and stabilities. Research needs to be focused on how the active sites can be enhanced further with 3D heterostructures of transition metals by studying them with various counterparts like hydroxides, layered double hydroxides and phosphides for empowering both OER and HER applications. This perspective covers the way to enlarge the utilization of 3D heterostructures successfully in terms of reduced overpotentials, highly exposed active sites, increased electrical conductivity, porosity and high-rate activity. From the various approaches of growth of transition metal based 3D heterostructures, it is easy to fine tune the active sites to have a viable production of hydrogen with less applied energy input. Overall, this perspective outlines a direction to increase the number of active sites on 3D transition metal based heterostructures by growing on 3D foams for enhanced water splitting applications.
Collapse
Affiliation(s)
- Kannimuthu Karthick
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Selvasundarasekar Sam Sankar
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Sangeetha Kumaravel
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Arun Karmakar
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Ragunath Madhu
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Krishnendu Bera
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Subrata Kundu
- Electrochemical Process Engineering (EPE) division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi-630003, Tamil Nadu, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| |
Collapse
|
17
|
Bera K, Reeda VSJ, Babila PR, Dinesh DC, Hritz J, Karthick T. An in silico molecular dynamics simulation study on the inhibitors of SARS-CoV-2 proteases (3CL pro and PL pro) to combat COVID-19. Molecular Simulation 2021. [DOI: 10.1080/08927022.2021.1957884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Krishnendu Bera
- CEITEC MU, Masaryk University, Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - V. S. Jeba Reeda
- Department of Physics and Research Center, Women's Christian College, Nagercoil, India (Affiliated to Manonmaniam Sundaranar University, Tirunelveli, India)
| | - P. R. Babila
- Department of Physics and Research Centre, Muslim Arts College, Thiruvithancode, India (Affiliated to Manonmaniam Sundaranar University, Tirunelveli, India)
| | | | - Jozef Hritz
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
- Department of Chemistry, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - T. Karthick
- Department of Physics, School of Electrical and Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| |
Collapse
|
18
|
Subadini S, Bera K, Hritz J, Sahoo H. Polyethylene glycol perturbs the unfolding of CRABP I: A correlation between experimental and theoretical approach. Colloids Surf B Biointerfaces 2021; 202:111696. [PMID: 33770701 DOI: 10.1016/j.colsurfb.2021.111696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/25/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
The importance of macromolecules paves the way towards a detailed molecular level investigation as all most all cellular processes occurring at the interior of cells in the form of proteins, enzymes, and other biological molecules are significantly affected because of their crowding. Thus, exploring the role of crowding environment on the denaturation and renaturation kinetics of protein molecules is of great importance. Here, CRABP I (cellular retinoic acid binding protein I) is employed as a model protein along with different molecular weights of Polyethylene glycol (PEG) as molecular crowders. The experimental evaluations are done by accessing the protein secondary structure analysis using circular dichroism (CD) spectroscopy and unfolding kinetics using intrinsic fluorescence of CRABP I at 37 °C to mimic the in vivo crowding environment. The unfolding kinetics results indicated that both PEG 2000 and PEG 4000 act as stabilizers by retarding the unfolding kinetic rates. Both kinetic and stability outcomes presented the importance of crowding environment on stability and kinetics of CRABP I. The molecular dynamics (MD) studies revealed that thirteen PEG 2000 molecules assembled during the 500 ns simulation, which increases the stability and percentage of β-sheet. The experimental findings are well supported by the molecular dynamics simulation results.
Collapse
Affiliation(s)
- Suchismita Subadini
- Biophysical and Protein Chemistry Lab, Department of Chemistry, NIT Rourkela, Rourkela, 769008, India
| | - Krishnendu Bera
- CEITEC MU, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Jozef Hritz
- CEITEC MU, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic; Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Harekrushna Sahoo
- Biophysical and Protein Chemistry Lab, Department of Chemistry, NIT Rourkela, Rourkela, 769008, India; Center of Nanomaterials, NIT Rourkela, Rourkela, 769008, India.
| |
Collapse
|
19
|
Bera K. Binding and inhibitory effect of ravidasvir on 3CL pro of SARS-CoV-2: a molecular docking, molecular dynamics and MM/PBSA approach. J Biomol Struct Dyn 2021; 40:7303-7310. [PMID: 33682639 DOI: 10.1080/07391102.2021.1896388] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Drug repurposing requires a limited resource, cost-effective and faster method to combat severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Therefore, this in silico studies attempts to identify the drug-likeness properties of ravidasvir, an II/III phase clinical trial chronic hepatitis C drug against 3-Chymotrypsin-like protease (3CLpro) of SARS-CoV-2 to combat the ongoing coronavirus disease 2019 (COVID-19) pandemic. This protease is predominantly involved in virus replication cycle; hence it is considered as a potent drug target. The molecular docking results showed that ravidasvir was found to be potent inhibitors of 3CLpro with scoring function based binding energy is -26.7 kJ/mol. Further dynamic behaviour of apo form and complex form of ravidasvir with 3CLpro were studied using molecular dynamics (MD) simulations over 500 ns each, total 2 µs time scale. The motion of the protein was studied using principal component analysis of the MD simulation trajectories. The binding free energy calculated using MM/PBSA method from the MD simulation trajectory was -190.3 ± 70.2 kJ/mol and -106.0 ± 26.7 kJ/mol for GROMOS96 54A7 and AMBER99SB-ILDN force field, respectively. This in silico studies suggesting ravidasvir might be a potential lead molecule against SARS-CoV-2 for further optimization and drug development to combat the life-threatening COVID-19 pandemic.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Krishnendu Bera
- CEITEC MU, Masaryk University, Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
| |
Collapse
|
20
|
Jain P, Barrera C, Osme A, Toro P, Chahar S, Butler K, Khorrami M, Fu P, Corredor G, Bera K, Dowlati A, Madabhushi A. P68.02 Computer Extracted Morphology Features of Tumor Nuclei Predict Response to Chemotherapy and Prognostic of OS in Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Jain P, Khorrami M, Gupta A, Rajiah P, Bera K, Vaidya P, Fu P, Dowlati A, Madabhushi A. MA13.02 Novel Non-Invasive Radiomic Signatures Extracted from Radiographic Images can Predict Response to Systemic Treatment in Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
22
|
Vaidya P, Bera K, Patil P, Gupta A, Fu P, Velu P, Choi H, Velcheti V, Madabhushi A. MA03.04 A Gender-Specific Radiomics Models for Predicting Recurrence in Early Stage (Stage I, II) Non-Small Cell Lung Cancer (ES-NSCLC) Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
23
|
Bera K, Roy A, Chugh D, Wong-Leung J, Hoe Tan H, Jagadish C. Role of defects and grain boundaries in the thermal response of wafer-scale hBN films. Nanotechnology 2021; 32:075702. [PMID: 33075756 DOI: 10.1088/1361-6528/abc286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With more widespread applications of nanotechnology, heat dissipation in nanoscale devices is becoming a critical issue. We study the thermal response of wafer-scale hexagonal boron nitride (hBN) layers, which find potential applications as ideal substrates in two dimensional devices. Sapphire-supported thin hBN films, 2'' in size and of different thicknesses, were grown using metalorganic vapour phase epitaxy. These large-scale films exhibit wrinkles defects and grain boundaries over their entire area. The shift of [Formula: see text] phonon mode with temperature is analysed by considering the cumulative contribution of anharmonic phonon decay along with lattice thermal expansion, defect, and strain modulation. The study demonstrates that during heat treatment the strain evolution plays a dominating role in governing the characteristics of the wrinkled thinner films. Interestingly we find that both defects and strain determine the spectral line-width of these wafer-scale films. To the end, from Raman line-width, the changes in phonon lifetime in delaminated and as-grown films is estimated. The results suggest the possibility of a reduction in thermal transport in these wafer-scale films compared to their bulk counterpart.
Collapse
Affiliation(s)
- K Bera
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur. Pin 721302. India
| | - Anushree Roy
- Department of Physics, Indian Institute of Technology Kharagpur. Pin 721302. India
| | - D Chugh
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
| | - J Wong-Leung
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
| | - H Hoe Tan
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
- Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
| | - C Jagadish
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
- Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia
| |
Collapse
|
24
|
Yang K, Fleming C, Contrera K, Woody N, Joshi N, Geiger J, Prendes B, Lamarre E, Scharpf J, Lorenz R, Bera K, Lu C, Burkey B, Adelstein D, Madabhushi A, Koyfman S. Impact of Insurance and Socioeconomic Status on HPV-related Oropharyngeal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
25
|
Cooper E, Crawford E, Maher J, Chinn J, Runge A, Bera K, Zezoff D, Dinicu A, Naaseh A, Lucas A, White K, Tewari S, Hari A, Bernstein M, Chang J, Ziogas A, Pearre D, Tewari K. Feasibility Of Visual Inspection With Acetic Acid (VIA) Screening For Cervical Cancer In Tanzania With Emphasis On Baseline Knowledge And Educational Intervention. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2019.11.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
26
|
Vaidya P, Bera K, Wang X, Patil P, Velcheti V, Madabhushi A. P2.17-35 Integrating CT Radiomic & Quantitative Histomorphometric Whole Slide Image Features Predicts Disease Free Survival in ES-NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
27
|
Bera K, Vaidya P, Velu P, Choi H, Fu P, Gupta A, Velcheti V, Madabhushi A. P2.17-34 Integrated Clinico-Radiomic Nomogram for Predicting Disease-Free Survival (DFS) in Stage I and II Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
28
|
Patil P, Khorrami M, Zagouras A, Bera K, Fu P, Gupta A, Velcheti V, Pennell N, Madabhushi A. P2.04-16 Novel CT Based Radiomic Features are Prognostic and Predictive of Benefit of Chemoimmunotherapy in Advanced Non-Squamous NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
29
|
Velcheti V, Lu C, Bera K, Wang X, Fu P, Yang M, Rimm D, Schalper K, Madabhushi A. MA15.05 Computerized Measurements of Cellular Diversity on H&E Tissue Are Prognostic of OS and Associated with Mutational Status in NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
30
|
Alilou M, Patil P, Fu P, Bera K, Velcheti V, Madabhushi A, Vaidya P. P1.04-25 CT Based Vessel Tortuosity Features Are Prognostic of Overall Survival and Predictive of Immunotherapy Response in NSCLC Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
31
|
Maher J, Lucas A, Zezoff D, Crawford E, Chang J, Ziogas A, Runge A, Chinn J, Cooper E, Dinicu A, Naaseh A, White K, Bera K, Bernstein M, Hari A, Tewari S, Pearre D, Tewari K. Towards eliminating cervical cancer in East Africa: Feasibility of visual inspection with acetic acid (VIA) screening and immediate cryotherapy in rural and urban Tanzania. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
32
|
Millan S, Satish L, Bera K, Sahoo H. Binding and inhibitory effect of the food colorants Sunset Yellow and Ponceau 4R on amyloid fibrillation of lysozyme. NEW J CHEM 2019. [DOI: 10.1039/c8nj05827j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Amyloid fibrillogenesis of proteins is known to be the root cause of a large number of diseases like Parkinson's, Alzheimer's, and Huntington's disease, spongiform encephalopathy, amyloid polyneuropathy, type-II diabetes, etc.
Collapse
Affiliation(s)
- Sabera Millan
- Department of Chemistry
- National Institute of Technology (NIT)
- Rourkela-769008, Sundergarh
- India
| | - Lakkoji Satish
- Department of Chemistry
- National Institute of Technology (NIT)
- Rourkela-769008, Sundergarh
- India
| | - Krishnendu Bera
- CEITEC MU
- Masaryk University
- Kamenice 753/5
- 625 00 Brno
- Czech Republic
| | - Harekrushna Sahoo
- Department of Chemistry
- National Institute of Technology (NIT)
- Rourkela-769008, Sundergarh
- India
| |
Collapse
|
33
|
Ismail M, Hill V, Statsevych V, Huang R, Prasanna P, Correa R, Singh G, Bera K, Beig N, Thawani R, Madabhushi A, Aahluwalia M, Tiwari P. Shape Features of the Lesion Habitat to Differentiate Brain Tumor Progression from Pseudoprogression on Routine Multiparametric MRI: A Multisite Study. AJNR Am J Neuroradiol 2018; 39:2187-2193. [PMID: 30385468 DOI: 10.3174/ajnr.a5858] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/06/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Differentiating pseudoprogression, a radiation-induced treatment effect, from tumor progression on imaging is a substantial challenge in glioblastoma management. Unfortunately, guidelines set by the Response Assessment in Neuro-Oncology criteria are based solely on bidirectional diametric measurements of enhancement observed on T1WI and T2WI/FLAIR scans. We hypothesized that quantitative 3D shape features of the enhancing lesion on T1WI, and T2WI/FLAIR hyperintensities (together called the lesion habitat) can more comprehensively capture pathophysiologic differences across pseudoprogression and tumor recurrence, not appreciable on diametric measurements alone. MATERIALS AND METHODS A total of 105 glioblastoma studies from 2 institutions were analyzed, consisting of a training (n = 59) and an independent test (n = 46) cohort. For every study, expert delineation of the lesion habitat (T1WI enhancing lesion and T2WI/FLAIR hyperintense perilesional region) was obtained, followed by extraction of 30 shape features capturing 14 "global" contour characteristics and 16 "local" curvature measures for every habitat region. Feature selection was used to identify most discriminative features on the training cohort, which were evaluated on the test cohort using a support vector machine classifier. RESULTS The top 2 most discriminative features were identified as local features capturing total curvature of the enhancing lesion and curvedness of the T2WI/FLAIR hyperintense perilesional region. Using top features from the training cohort (training accuracy = 91.5%), we obtained an accuracy of 90.2% on the test set in distinguishing pseudoprogression from tumor progression. CONCLUSIONS Our preliminary results suggest that 3D shape attributes from the lesion habitat can differentially express across pseudoprogression and tumor progression and could be used to distinguish these radiographically similar pathologies.
Collapse
Affiliation(s)
- M Ismail
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - V Hill
- Department of Neuroradiology (V.H., V.S.), Imaging Institute
| | - V Statsevych
- Department of Neuroradiology (V.H., V.S.), Imaging Institute
| | - R Huang
- Department of Radiology (R.H.), Brigham and Women's Hospital, Dana-Farber/Harvard Cancer Center, Boston, Massachusetts
| | - P Prasanna
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - R Correa
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - G Singh
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - K Bera
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - N Beig
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - R Thawani
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - A Madabhushi
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| | - M Aahluwalia
- Brain Tumor and Neuro-Oncology Center (M.A.), Cleveland Clinic, Cleveland, Ohio
| | - P Tiwari
- From the Department of Biomedical Engineering (M.I., P.P., R.C., G.S., K.B., N.B., R.T., A.M., P.T.), Case Western Reserve University, Cleveland, Ohio
| |
Collapse
|
34
|
Vaidya P, Bera K, Fu P, Ganesan S, Khunger A, Patil P, Velcheti V, Madabhushi A. P3.16-10 Radiomic Features on CT are Prognostic of Recurrence as well as Predictive of Added Benefit of Adjuvant Chemotherapy in ES-NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
35
|
Patil P, Bera K, Vaidya P, Khorrami M, Jain P, Madabhushi A, Velcheti V. P2.04-17 Pre-Therapy Radiomic Features Can Distinguish Hyperprogression from Other Response Patterns to PD1/PD-L1 Inhibitors in NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
36
|
Bera K, Rani P, Kishor G, Agarwal S, Kumar A, Singh DV. Structural elucidation of transmembrane domain zero (TMD0) of EcdL: A multidrug resistance-associated protein (MRP) family of ATP-binding cassette transporter protein revealed by atomistic simulation. J Biomol Struct Dyn 2017; 36:2938-2950. [DOI: 10.1080/07391102.2017.1372311] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Krishnendu Bera
- Bioinformatics Programme, Centre for Biological Sciences, Central University of South Bihar, Patna, India
| | - Priyanka Rani
- Bioinformatics Programme, Centre for Biological Sciences, Central University of South Bihar, Patna, India
| | - Gaurav Kishor
- Bioinformatics Programme, Centre for Biological Sciences, Central University of South Bihar, Patna, India
| | - Shikha Agarwal
- Department of Computer Science, Central University of South Bihar, Patna, India
| | - Antresh Kumar
- Biotechnology Programme, Centre for Biological Sciences, Central University of South Bihar, Patna, India
| | - Durg Vijay Singh
- Bioinformatics Programme, Centre for Biological Sciences, Central University of South Bihar, Patna, India
| |
Collapse
|
37
|
Mahapatra MK, Bera K, Singh DV, Kumar R, Kumar M. In silico modelling and molecular dynamics simulation studies of thiazolidine based PTP1B inhibitors. J Biomol Struct Dyn 2017; 36:1195-1211. [PMID: 28393626 DOI: 10.1080/07391102.2017.1317026] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) has been identified as a negative regulator of insulin and leptin signalling pathway; hence, it can be considered as a new therapeutic target of intervention for the treatment of type 2 diabetes. Inhibition of this molecular target takes care of both diabetes and obesity, i.e. diabestiy. In order to get more information on identification and optimization of lead, pharmacophore modelling, atom-based 3D QSAR, docking and molecular dynamics studies were carried out on a set of ligands containing thiazolidine scaffold. A six-point pharmacophore model consisting of three hydrogen bond acceptor (A), one negative ionic (N) and two aromatic rings (R) with discrete geometries as pharmacophoric features were developed for a predictive 3D QSAR model. The probable binding conformation of the ligands within the active site was studied through molecular docking. The molecular interactions and the structural features responsible for PTP1B inhibition and selectivity were further supplemented by molecular dynamics simulation study for a time scale of 30 ns. The present investigation has identified some of the indispensible structural features of thiazolidine analogues which can further be explored to optimize PTP1B inhibitors.
Collapse
Affiliation(s)
- Manoj Kumar Mahapatra
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India
| | - Krishnendu Bera
- b Department of Bioinformatics , Centre for Biological Sciences, Central University of South Bihar , BIT campus, Patna , India
| | - Durg Vijay Singh
- b Department of Bioinformatics , Centre for Biological Sciences, Central University of South Bihar , BIT campus, Patna , India
| | - Rajnish Kumar
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India
| | - Manoj Kumar
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India
| |
Collapse
|
38
|
Millan S, Satish L, Bera K, Susrisweta B, Singh DV, Sahoo H. A Spectroscopic and Molecular Simulation Approach toward the Binding Affinity between Lysozyme and Phenazinium Dyes: An Effect on Protein Conformation. J Phys Chem B 2017; 121:1475-1484. [DOI: 10.1021/acs.jpcb.6b10991] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sabera Millan
- Department
of Chemistry, National Institute of Technology (NIT), Rourkela, Odisha, India
| | - Lakkoji Satish
- Department
of Chemistry, National Institute of Technology (NIT), Rourkela, Odisha, India
| | - Krishnendu Bera
- Department
of Bioinformatics, Central University of South Bihar, Patna, India
| | - B. Susrisweta
- Department
of Chemistry, National Institute of Technology (NIT), Rourkela, Odisha, India
| | - Durg Vijay Singh
- Department
of Bioinformatics, Central University of South Bihar, Patna, India
| | - Harekrushna Sahoo
- Department
of Chemistry, National Institute of Technology (NIT), Rourkela, Odisha, India
| |
Collapse
|
39
|
Satish L, Millan S, Bera K, Mohapatra S, Sahoo H. A spectroscopic and molecular dynamics simulation approach towards the stabilizing effect of ammonium-based ionic liquids on bovine serum albumin. NEW J CHEM 2017. [DOI: 10.1039/c7nj02900d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Experimental and theoretical evidence in support of the stabilizing effect of ammonium-based ionic liquids on thermal unfolding/refolding of bovine serum albumin is provided in this article.
Collapse
Affiliation(s)
- Lakkoji Satish
- Department of Chemistry
- National Institute of Technology Rourkela
- Sundergarh
- India
| | - Sabera Millan
- Department of Chemistry
- National Institute of Technology Rourkela
- Sundergarh
- India
| | - Krishnendu Bera
- Department of Chemistry
- National Institute of Technology Rourkela
- Sundergarh
- India
| | - Sujata Mohapatra
- Department of Chemistry
- National Institute of Technology Rourkela
- Sundergarh
- India
| | - Harekrushna Sahoo
- Department of Chemistry
- National Institute of Technology Rourkela
- Sundergarh
- India
| |
Collapse
|
40
|
Bera K, Nosalova G, Sivova V, Ray B. Structural Elements and Cough Suppressing Activity of Polysaccharides from Zingiber officinale Rhizome. Phytother Res 2016; 30:105-11. [PMID: 26522239 DOI: 10.1002/ptr.5508] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 09/24/2015] [Accepted: 10/12/2015] [Indexed: 12/21/2022]
Abstract
Zingiber officinale is used for the management of fever, bronchial asthma and cough for thousands of years. While the link to a particular indication has been established in human, the active principle of the formulation remains unknown. Herein, we have investigated a water extracted polysaccharides (WEP) containing fraction from its rhizome. Utilizing a traditional aqueous extraction protocol and using chemical, chromatographic and spectroscopic methods a fraction containing a branched glucan and polygalaturonan in a ratio of 59:1 was characterized. This glucan, which has a molecular mass of 36 kDa, is made up of terminal-, (1,4)- and (1,4,6)-linked α-Glcp residues. Oral administration of WEP in doses of 25 and 50 mg/kg body weight significantly inhibited the number of citric acid-induced cough efforts in guinea pigs. It does not alter the specific airway smooth muscle reactivity significantly. Thus, traditional aqueous extraction method provides molecular entities, which induces antitussive activity without addiction.
Collapse
Affiliation(s)
- K Bera
- Natural Products Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, 713 104, India
| | - G Nosalova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University, Sklabinska 26, 036 01, Martin, Slovakia
| | - V Sivova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University, Sklabinska 26, 036 01, Martin, Slovakia
| | - B Ray
- Natural Products Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, 713 104, India
| |
Collapse
|
41
|
Bera K, Sarkar S, Jana U. Iron-catalyzed tandem carbon–carbon/carbon–oxygen bond formation/aromatization of 2′-alkynyl-biphenyl-2-carbinols: a new approach to the synthesis of substituted phenanthrenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
42
|
Paul K, Bera K, Jalal S, Sarkar S, Jana U. Fe-Catalyzed Novel Domino Isomerization/Cyclodehydration of Substituted 2-[(Indoline-3-ylidene)(methyl)]benzaldehyde Derivatives: An Efficient Approach toward Benzo[b]carbazole Derivatives. Org Lett 2014; 16:2166-9. [PMID: 24742160 DOI: 10.1021/ol500505k] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Kartick Paul
- Department
of Chemistry, Jadavpur University, Kolkata 700 032, West
Bengal, India
| | - Krishnendu Bera
- Department
of Chemistry, Jadavpur University, Kolkata 700 032, West
Bengal, India
| | - Swapnadeep Jalal
- Department
of Chemistry, Jadavpur University, Kolkata 700 032, West
Bengal, India
| | - Soumen Sarkar
- Department
of Chemistry, Jadavpur University, Kolkata 700 032, West
Bengal, India
| | - Umasish Jana
- Department
of Chemistry, Jadavpur University, Kolkata 700 032, West
Bengal, India
| |
Collapse
|
43
|
Jalal S, Bera K, Sarkar S, Paul K, Jana U. Efficient synthesis of functionalized dihydroquinolines, quinolines and dihydrobenzo[b]azepine via an iron(iii) chloride-catalyzed intramolecular alkyne–carbonyl metathesis of alkyne tethered 2-amino benzaldehyde/acetophenone derivatives. Org Biomol Chem 2014; 12:1759-70. [DOI: 10.1039/c3ob42292e] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron-catalyzed synthesis of dihydroquinolines, quinolines and dihydrobenzo[b]azepine.
Collapse
Affiliation(s)
- Swapnadeep Jalal
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032, India
| | - Krishnendu Bera
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032, India
| | - Soumen Sarkar
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032, India
| | - Kartick Paul
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032, India
| | - Umasish Jana
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032, India
| |
Collapse
|
44
|
Bera K, Jalal S, Sarkar S, Jana U. FeCl3-catalyzed synthesis of functionally diverse dibenzo[b,f]oxepines and benzo[b]oxepines via alkyne–aldehyde metathesis. Org Biomol Chem 2014; 12:57-61. [DOI: 10.1039/c3ob41624k] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Bera K, Khanam J, Mohanraj KP, Mazumder B. Design and evaluation of mucoadhesive beads of glipizide as a controlled release drug delivery system. J Microencapsul 2013; 31:220-9. [DOI: 10.3109/02652048.2013.834989] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
46
|
Sarkar S, Bera K, Jalal S, Jana U. Synthesis of Structurally Diverse Polyfunctional Pyrrolo[1,2-a]quinolines by Sequential Iron-Catalyzed Three-Component Coupling and Gold-Catalyzed Hydroarylation Reactions. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300659] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
47
|
Jalal S, Sarkar S, Bera K, Maiti S, Jana U. Synthesis of Nitroalkenes Involving a Cooperative Catalytic Action of Iron(III) and Piperidine: A One-Pot Synthetic Strategy to 3-Alkylindoles, 2H-Chromenes andN-Arylpyrrole. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300172] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
48
|
Sarkar S, Bera K, Maiti S, Biswas S, Jana U. Three-Component Coupling Synthesis of Diversely Substituted N-Aryl Pyrroles Catalyzed by Iron(III) Chloride. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2011.650273] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Soumen Sarkar
- a Department of Chemistry , Jadavpur University , Kolkata , West Bengal , India
| | - Krishnendu Bera
- a Department of Chemistry , Jadavpur University , Kolkata , West Bengal , India
| | - Sukhendu Maiti
- a Department of Chemistry , Jadavpur University , Kolkata , West Bengal , India
| | - Srijit Biswas
- a Department of Chemistry , Jadavpur University , Kolkata , West Bengal , India
| | - Umasish Jana
- a Department of Chemistry , Jadavpur University , Kolkata , West Bengal , India
| |
Collapse
|
49
|
Sarkar S, Maiti S, Bera K, Jalal S, Jana U. Highly efficient synthesis of polysubstituted fluorene via iron-catalyzed intramolecular Friedel–Crafts alkylation of biaryl alcohols. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
50
|
Bera K, Sarkar S, Jalal S, Jana U. Synthesis of Substituted Phenanthrene by Iron(III)-Catalyzed Intramolecular Alkyne–Carbonyl Metathesis. J Org Chem 2012; 77:8780-6. [PMID: 22954237 DOI: 10.1021/jo301371n] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Krishnendu Bera
- Department of Chemistry, Jadavpur University, Kolkata-700 032, West Bengal,
India
| | - Soumen Sarkar
- Department of Chemistry, Jadavpur University, Kolkata-700 032, West Bengal,
India
| | - Swapnadeep Jalal
- Department of Chemistry, Jadavpur University, Kolkata-700 032, West Bengal,
India
| | - Umasish Jana
- Department of Chemistry, Jadavpur University, Kolkata-700 032, West Bengal,
India
| |
Collapse
|