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Donnelly C, Minty I, Dsouza A, Wong YY, Mukhopadhyay I, Nagarajan V, Rupra R, Charles WN, Khajuria A. The role of platelet-rich plasma in androgenetic alopecia: A systematic review. J Cosmet Dermatol 2024; 23:1551-1559. [PMID: 38284294 DOI: 10.1111/jocd.16185] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/21/2023] [Accepted: 01/04/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Androgenetic alopecia (AGA), also referred to as male or female pattern hair loss, is the commonest cause of chronic hair loss and affects up to 80% of men by the age of 70. Despite a high prevalence, there are few approved therapies, which show minimal efficacy. OBJECTIVES This systematic review aims to evaluate the efficacy of platelet-rich plasma (PrP) in the treatment of AGA in male patients. METHODS MEDLINE, EMBASE, Cochrane (CENTRAL), CINAHL, clinicaltrials.gov, Google Scholar and the Science Citation Index database were searched to identify eligible studies. All randomized controlled trials (RCTs) and prospective cohort studies related to PrP use in AGA were included. Primary outcomes included changes in hair density and hair count. Methodological quality was assessed using bias assessment tools. RESULTS Eight RCTs and one cohort study were included in the review with a total of 291 participants. Six studies reported a statistically significant increase in hair density in the PrP group versus the control. Five studies reported a statistically significant increase in hair count with PrP. Seven studies showed moderate risk and two showed low risk of bias. CONCLUSION In a methodologically robust review on the effectiveness of PrP on male AGA, PrP demonstrated some potential to be used therapeutically. However, the low quality of evidence, moderate risk of bias, and high heterogeneity of included studies limit inferences and call for more robust designs to investigate this further.
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Affiliation(s)
- C Donnelly
- Green Templeton College, University of Oxford, Oxford, UK
| | - I Minty
- University College Hospital, London, UK
| | - A Dsouza
- Kasturba Medical College, Manipal, Karnataka, India
| | - Y Y Wong
- University of Glasgow, Glasgow, UK
| | | | - V Nagarajan
- University Hospital Leicester, Leicester, UK
| | - R Rupra
- Norfolk & Norwich University Hospital, Norwich, UK
| | - W N Charles
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - A Khajuria
- Department of Surgery and Cancer, Imperial College London, London, UK
- Kellogg College, University of Oxford, Oxford, UK
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Nagarajan V, Vaishnavi M, Bhuvaneswari R, Chandiramouli R. Novel chair graphene nanotubes as adsorbing medium for alanine and asparagine amino acids - A DFT outlook. J Mol Graph Model 2024; 126:108637. [PMID: 37801810 DOI: 10.1016/j.jmgm.2023.108637] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 10/08/2023]
Abstract
Amino acids are required to make protein. The deficiency of amino acids leads to a lack of sleep and mood. Among various amino acids, we conducted the adsorption studies of alanine and asparagine amino acids on a novel one-dimensional material, chair graphene nanotube. The stability of the chair graphene nanotube is ensured with the negative formation energy, which is -6.490 eV/atom. The energy band gap of bare chair graphene nanotube is 1.022 eV, which possesses a semiconductor nature. The stable chair graphene nanotube is used as adsorbing material for alanine and asparagine amino acids. Besides, alanine and asparagine are physisorbed on chair graphene nanotubes that are confirmed by the range of adsorption energy from -0.107 eV to -0.718 eV. Upon adsorption of amino acids, the charge transfer outcome shows that chair graphene nanotubes behave as donors of electrons to alanine and asparagine. Further, the changes in the band gap of the chair graphene nanotube are noticed from the results of band structure and PDOS spectrum. The changes in the electron density also reveal the changes in the electronic properties of the chair graphene nanotube owing to alanine and asparagine sorption. The proposed report portrays the adsorption attributes of alanine and asparagine amino acids on 1D chair graphene nanotubes.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - M Vaishnavi
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Bhuvaneswari
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Nagarajan V, Ramesh R, Chandiramouli R. N-Nitrosamine sensing properties of novel penta-silicane nanosheets-a first-principles outlook. J Mol Model 2023; 29:309. [PMID: 37688608 DOI: 10.1007/s00894-023-05711-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 08/29/2023] [Indexed: 09/11/2023]
Abstract
CONTEXT N-Nitrosamine is one of the highly toxic carcinogenic compounds that are found almost in the entire environment. In the present work, novel penta-silicene (penta-Si) and penta-silicane (penta-HSi) are utilised to sense the N-nitrosamine in the air environment. Initially, structural firmness of penta-Si and penta-HSi is confirmed using cohesive energy. Subsequently, the electronic properties of penta-Si and penta-HSi are discussed with the aid of electronic band structure and projected density of states (PDOS) maps. The calculated band gap of penta-Si and penta-HSi is 0.251 eV and 3.117 eV, correspondingly. Mainly, the adsorption property of N-nitrosamine on the penta-Si and penta-HSi is studied based on adsorption energy, Mulliken population analysis along with relative energy gap changes. The computed adsorption energy range is in physisorption (- 0.101 to - 0.619 eV), which recommends that the proposed penta-Si and penta-HSi can be employed as a promising sensor to detect the N-nitrosamine in the air environment. METHODS The structural, electronic and adsorption behaviour of N-nitrosamine on penta-Si and penta-HSi are studied based on the density functional theory (DFT) approach. The hybrid generalized gradient approximation (GGA) with Becke's three-parameter (B3) + Lee-Yang-Parr (LYP) exchange correlation functional is used to optimise the base material. All calculations in the present work are carried out in Quantum-ATK-Atomistic Simulation Software.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Ramesh
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Nagarajan V, Bhuvaneswari R, Chandiramouli R. Interaction studies of propylene and butadiene on tricycle graphane nanosheet - A DFT outlook. J Mol Graph Model 2023; 121:108449. [PMID: 36965229 DOI: 10.1016/j.jmgm.2023.108449] [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: 01/26/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 03/18/2023]
Abstract
In this research work, we employed a tricycle graphane nanosheet as a chemical sensor to monitor the toxic hydrocarbon molecules, namely propylene, and 1,3-butadiene, which are emitted from automobile industries. At first, the structural stability and dynamical permanency of tricycle graphane is ascertained based on cohesive energy and phonon-band-spectrum. Sequentially, the electronic properties of tricycle graphane are conferred with the results of the projected density of states spectrum and band structure. The computed band gap of tricycle graphane is 5.53 eV. Chiefly, the adsorption behaviour of target propylene and 1, 3-butadiene on tricycle graphane is explored by determining adsorption energy, relative band gap variation, and Mulliken population analysis. Furthermore, the range of adsorption energy magnitudes (-0.16 eV to -1.03 eV) demonstrates that the target hydrocarbon molecules are physically adsorbed on tricycle graphane material. The overall outcome endorses that the tricycle graphane can be utilised as a prominent sensor to sense the hydrocarbon molecules released from automobiles and monitor air pollutants.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Bhuvaneswari
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Recent progress on the synthesis, properties and applications of antimonene - A mini-review. J Mol Graph Model 2023; 122:108473. [PMID: 37060642 DOI: 10.1016/j.jmgm.2023.108473] [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] [Received: 02/21/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023]
Abstract
The recent advancement in group VA monolayer and few-layer materials leads to fascinating applications. In this mini-review, we present the state-of-the-art in the synthesis of antimonene, its properties and various applications. Besides, the electronic properties of antimonene depend on its allotropes. Furthermore, we studied the electronic properties of δ, ε, and twisted-θ antimonene nanosheets, nanoribbons, and nanoring, and the results are reported. Moreover, the structural stability and electronic properties of antimonene is influenced by its allotrope and nanostructure. The report will give insights into the synthesis, properties, applications, and future outlook of antimonene.
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Jyothi MS, Nagarajan V, Chandiramouli R. Novel cubic silicane nanosheet as an adsorbing medium for dimethylbutane and methylhexane molecules – a first-principles study. Mol Phys 2023. [DOI: 10.1080/00268976.2023.2184655] [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: 03/11/2023]
Affiliation(s)
- M. S. Jyothi
- Department of Chemistry, AMC Engineering College, Bengaluru, India
| | - V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Nagarajan V, Bhuvaneswari R, Chandiramouli R. Adsorption studies of camphene and eucalyptol molecules on orthorhombic germanane nanosheet - A first-principles investigation. J Mol Graph Model 2023; 119:108395. [PMID: 36549225 DOI: 10.1016/j.jmgm.2022.108395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/01/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
In the present work, we deployed a novel orthorhombic germanane nanosheet (ortho-GeNS) as a sensing material to detect camphene and eucalyptol molecules, the indoor air pollutants in the ambient environment. In the beginning, the structural and dynamical permanency of ortho-GeNS is confirmed with cohesive energy (-4.164eV/atom) and phonon-band maps. Successively, the electronic features of ortho-GeNS are conferred using band structure along with the projected density of states maps. The energy gap of ortho-GeNS at the hybrid GGA/B3LYP level of theory is computed to be 3.948 eV. Mainly, the adsorption properties of terpinene molecules, namely camphene and eucalyptol on ortho-GeNS are investigated via ascertaining adsorption energy, Mulliken population analysis, and relative band gap variations. Besides, the scope of adsorption energy values (-0.405eVto-0.669eV) exemplifies that the target molecules are physisorbed on ortho-GeNS. Overall results suggested that the ortho-GeNS can be deployed as a worthy chemiresistive sensor to sense indoor air pollutants for monitoring indoor air quality.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Bhuvaneswari
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Jyothi MS, Nagarajan V, Chandiramouli R. M-cymene and m-xylene adsorption studies on hex-star arsenene nanosheets – a DFT investigation. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2140082] [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: 12/14/2022]
Affiliation(s)
- M. S. Jyothi
- Department of Chemistry, AMC Engineering College, Bengaluru, India
| | - V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, India
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Jyothi M, Nagarajan V, Chandiramouli R. Choloromethane and bromomethane adsorption studies on hex-star phosphorene nanoribbon – a DFT insight. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113961] [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: 11/29/2022]
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Nagarajan V, Chandiramouli R. Acetaminophen and mepirizole molecular adsorption studies on novel ζ – phosphorene nanotube based on first-principles investigation. Molecular Simulation 2022. [DOI: 10.1080/08927022.2022.2125543] [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] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Nagarajan V, Deepika K, Swetha B, Reddy KM, Chandiramouli R. δ-antimonene nanosheet as a sensing element for ethyl acetate and butyl acetate – a first-principles study. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2103469] [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: 10/16/2022]
Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - Kota Deepika
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - Baswa Swetha
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - Korni Manideep Reddy
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Pavendan K, Nagarajan V. Modelling of wastewater treatment, microalgae growth and harvesting by flocculation inside photo bioreactor using machine learning technique. IFS 2022. [DOI: 10.3233/jifs-212676] [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: 11/15/2022]
Abstract
Biological wastewater treatment with the use of algae-bacteria consortia for the uptake of nutrient and recovery of resource is considered as the ‘paradigm shift’ from the process of mainstream wastewater treatment plants (WWTPs) so as to mitigate the pollution and thus promoting the circular economy. In this regard, the application of machine learning algorithms (MLAs) was found to be effectual and beneficial for the prediction of uncertain performances in the process of treatment and it shows a satisfactory result for the effective optimization, monitoring, uncertainty prediction and so on in the environment systems. The proposed approach aims at modelling the treatment of wastewater, growth of micro algae and flocculation harvesting at the photobioreactor (PBR) along with the utilization of machine learning techniques. Initially, the raw data from the PBR was taken and is pre-processed using z-score normalization technique followed by extraction and selection of features that are more appropriate. The Adaptive neuro-fuzzy inference system (ANFIS) model is built along with the modified Fuzzy C-Means algorithm (MFCM) so as to cluster the huge amount of data. ANFIS is employed for the estimation of controller output parameters and for controlling the temperature inside the reactor. The output controller parameter performance can be enhanced by the use of optimization approach. The discrete Multilayer perceptron (DMLP) with the hyper tuning parameters of Iterative Levi’s Flight Dependent Cuckoo search optimization algorithm (ILF-CSO) is employed for the prediction purpose of attained cultivation growth rate and the pH of treated wastewater. The optimization technique based on machine learning model in turn offers the best possible solution needed for the estimation of output parameters. Thus, the removal rate of effluent T-N concentrations from the wastewater treatment is predicted with some intervals of day. At last, the performance is estimated in terms of growth rate, temperature variations, biomass, nitrate and phosphate concentrations, and error rates (RMSE, APE), and determination coefficient (R2). The attained outcome shows that the presented model is effectual and has the potential to apply for controlling and predicting the biological wastewater treatment plants.
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Affiliation(s)
- K. Pavendan
- Department of ECE, Adhiparasakthi Engineering College, Melmaruvathur, Tamilnadu, India
| | - V. Nagarajan
- Department of ECE, Adhiparasakthi Engineering College, Melmaruvathur, Tamilnadu, India
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Jyothi M, Nagarajan V, Chandiramouli R. Physisorption of trichloroethylene and tetrachloroethylene on novel zeta arsenene nanotubes – A first-principles study. J Mol Graph Model 2022; 115:108233. [DOI: 10.1016/j.jmgm.2022.108233] [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] [Received: 03/19/2022] [Revised: 05/22/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
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Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Jyothi M, Nagarajan V, Chandiramouli R. Chemisorption of atrazine and diuron molecules on γ-arsenene nanosheet - a first-principles study. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139484] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Jyothi M, Nagarajan V, Chandiramouli R. Adsorption studies of 2,3-butanedione and acetic acid on ζ-phosphorene sheets based on the first-principles study. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113548] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Nagarajan V, Chandiramouli R. Sorption studies and removal of chlortetracycline and oxytetracycline using theta phosphorene nanoribbon – A DFT outlook. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117070] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Chandiramouli R, Deepika K, Manideep Reddy K, Swetha B, Nagarajan V. Methylcyclohexane and methyl methacrylate sensing studies using γ-arsenene nanoribbon – a first-principles investigation. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113595] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Nagarajan V, Sundar S, Chandiramouli R. Interaction studies of tuberculosis biomarker vapours on novel beta arsenene sheets – A DFT insight. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113426] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Affiliation(s)
- V. Nagarajan
- School of Electrical and Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical and Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Nagarajan V, Chandiramouli R. Adsorption behaviour of trichloropropane and tetrachloroethylene on δ-phosphorene sheets: A first-principles insight. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113347] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Jyothi M, Nagarajan V, Chandiramouli R. Interaction studies of dichlobenil and isoproturon on square-octagon phosphorene nanotube based on DFT frame work. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138773] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Nagarajan V, Chandiramouli R. Molecular adsorption studies of formaldehyde and methanol on novel twisted bilayer beta phosphorene sheets – a first-principles investigation. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1966535] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, India
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Red tricycle phosphorene nanoribbon as a removing medium of sulfadiazine and sulfamethoxazole molecules based on first-principles studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116294] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Nagarajan V, Chandiramouli R. Sorption studies of sulfadimethoxine and tetracycline molecules on β-antimonene nanotube - A first-principles insight. J Mol Graph Model 2021; 108:107988. [PMID: 34325354 DOI: 10.1016/j.jmgm.2021.107988] [Citation(s) in RCA: 10] [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] [Received: 03/09/2021] [Revised: 07/03/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
We ascertained the structural firmness of β-antimonene nanotube and studied the adsorption behaviour of sulfadimethoxine (SM) and tetracycline (TC) molecules on the base substrate using density functional theory (DFT) with B86LYP-D3 level of theory. Significantly, β-antimonene nanotube displays a semiconducting character with an energy band-gap of 0.263 eV. The three dissimilar preferential adsorption sites namely, bride-, hollow-, tube-inner site of SM and TC molecules on β-antimonene nanotube were investigated using average band gap changes, Bader charge transfer along with adsorption energy. Further, the calculated adsorption energy for preferential adsorption sites is noticed to be in the scope of -0.813 eV to -3.752 eV signifying to physisorption and chemisorption form of interaction on β-antimonene nanotube. The inclusive outcome recommends that β-antimonene nanotube can be deployed as a chemi-resistive sensor to sense and remove SM and TC molecules from the contaminated aqueous medium.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Princy Maria J, Nagarajan V, Chandiramouli R. First-principles studies on sensing properties of delta arsenene nanoribbons towards hexane and heptane molecules. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113256] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Nagarajan V, Chandiramouli R. Interaction studies of glycine, acetate and methylamine on β-tellurene nanoribbon – A first-principles analysis. J Mol Graph Model 2021; 105:107895. [DOI: 10.1016/j.jmgm.2021.107895] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 02/02/2023]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Interaction studies of diclofenac and ibuprofen molecules on armchair bismuthene nanotubes: A first-principles study. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111169] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Princy Maria J, Bhuvaneswari R, Nagarajan V, Chandiramouli R. Kagome phosphorene molecular device for sensing chloropicrin and phosgene – A first-principles study. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138472] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Nagarajan V, Chandiramouli R. Molecular adsorption of o-ethyltoluene and phenyl propane on square-octagon phosphorene nanosheet – A first-principles calculation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115320] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. First-principles research on adsorption properties of o-xylene and styrene on 5–8 phosphorene sheets. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138244] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Princy Maria J, Nagarajan V, Chandiramouli R. Chemosensing nature of black phosphorene nanotube towards C14H9Cl5 and C10H5Cl7 molecules – A first-principles insight. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2020.113109] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Jyothi M, Nagarajan V, Chandiramouli R. Square-octagon arsenene nanosheet as chemical nanosensor for M-xylene and toluene – A DFT outlook. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2020.113088] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Aparajitha RV, Selvan PS, Ahamed AS, Bhavani S, Nagarajan V. Comparative evaluation of long-term fluoride release and antibacterial activity of an alkasite, nanoionomer, and glass ionomer restorative material – An in vitro study. J Conserv Dent 2021; 24:485-490. [PMID: 35399765 PMCID: PMC8989179 DOI: 10.4103/jcd.jcd_336_21] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/24/2021] [Accepted: 11/24/2021] [Indexed: 11/30/2022] Open
Abstract
Background: The antibacterial activity of restorative material and the amount of fluoride released are interlinked. Hence, these are the two foremost properties to be studied. Aim: This study aimed to evaluate and compare the amount and pattern of fluoride release from Type IX GIC (GC HS posterior), nanoionomer (Ketac N100), and alkasite (Cention N), and the antibacterial activity against Streptococcus mutans at 24 and 48 h. Settings and Design: This in vitro study was carried out in laboratory settings with six samples of each group for fluoride release using an ion-chromatography (IC) machine and five samples of each group for antibacterial activity using agar plates. Materials and Methodology: Samples of each group, Group I – Type IX GIC, Group II – nanoionomer, and Group III –alkasite, were prepared, immersed in 2 ml of artificial saliva, and fluoride release recorded using IC after 1, 7, 14, and 28 days intervals. The antibacterial activity against S. mutans was evaluated by placing samples of each group in the agar plates and measuring the diameter of zones of inhibition after 24 and 48 h. Statistical Analysis: One-way ANOVA test to check to mean differences between the groups and Tukey's honestly significant difference post hoc test for multiple intergroup comparisons (P = 0.05). Results: The Type IX GIC showed the highest fluoride release after day1. However, nanoionomer showed the maximum fluoride release for the remaining days. The least amount of fluoride released was from the alkasite throughout the study. The antibacterial activity of nanoionomer was the highest, followed by Type IX GIC and alkasite at both 24 and 48 h. Conclusions: Nanoionomer showed the highest fluoride release and antibacterial activity.
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Nagarajan V, Sarvaka S, Chandiramouli R. Adsorption studies of nucleobases on ε-arsenene nanosheet based on first-principles research. J Mol Graph Model 2020; 103:107827. [PMID: 33370614 DOI: 10.1016/j.jmgm.2020.107827] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 08/17/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 11/18/2022]
Abstract
The electronic attributes and energetics of ε-arsenene nanosheet (ε-As) are explored with regard to the density functional theory basis. Initially, based on formation energy (-3.715 eV/atom), we ensured the structural firmness of ε-As. The ε-As is used as a base substrate to adsorb nucleobases viz., adenine (A), guanine (G), thymine (T), cytosine (C) & uracil (U). The surface adsorption of nucleobases on ε-As is analysed based on band structure, the density of states, adsorption energy, energy gap variation & charge transfer. Besides, we observed the exothermic nature of binding energy (ranging from -0.453 eV to -0.819 eV) upon nucleobase adsorption on ε-As. Also, the energy gap variation & charge transfer takes place owing to adsorption of nucleobases on the ε-As sheet. The present report reveals the adsorption of nucleobases on ε-arsenene nanosheet.
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Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - S Sarvaka
- School of Chemical & Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Novel green phosphorene sheets to detect tear gas molecules - A DFT insight. J Mol Graph Model 2020; 100:107706. [DOI: 10.1016/j.jmgm.2020.107706] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 07/02/2020] [Accepted: 07/18/2020] [Indexed: 10/23/2022]
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Nagarajan V, Chandiramouli R. Molecular adsorption studies of benzidine on novel Kagome antimonene nanosheets - Insights based on first-principles DFT calculations. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113972] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Novel ε-arsenene nanosheets for sensing toxic malathion and parathion – A first-principles approach. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112995] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Sensing studies of DDT and Toxaphene molecules using chemi-resistive β-antimonene nanotubes based on first-principles insights. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137895] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Nagarajan V, Chandiramouli R. Dimethyl and ethyl methyl ether adsorption studies on β-antimonene nanosheets – a first-principles study. Molecular Simulation 2020. [DOI: 10.1080/08927022.2020.1822527] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Jyothi M, Nagarajan V, Chandiramouli R. Benzyl alcohol and 2-methyldecalin vapor adsorption studies on β-bismuthene sheets – A DFT outlook. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137819] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Physisorption of propane and butane vapors on novel Kagome antimonene sheets – A first-principles perception. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137693] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Swetha B, Nagarajan V, Soltani A, Chandiramouli R. Novel gamma arsenene nanosheets as sensing medium for vomiting agents: A first-principles research. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112876] [Citation(s) in RCA: 18] [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: 10/24/2022]
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Saravanan S, Nagarajan V, Chandiramouli R. Alcohol molecular interaction studies on stair phosphorene nanosheets: a first-principles approach. Struct Chem 2020. [DOI: 10.1007/s11224-020-01615-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Princy Maria J, Nagarajan V, Chandiramouli R. Investigation on adsorption features of nitroglycerin on novel red tricycle arsenene nanosheet - A first-principles study. J Mol Graph Model 2020; 100:107653. [PMID: 32763794 DOI: 10.1016/j.jmgm.2020.107653] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/08/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/22/2022]
Abstract
The chemo sensing features of red tricycle arsenene nanosheet (RTANS), a monolayer obtained from allotropes of arsenic is employed in sensing the hazardous vapor nitroglycerin (NG) based on the first-principles investigation. The computations are carried out with the ATK-VNL package. The stability of the RTANS is validated by its formation energy, which is calculated as -4.171 eV/atom. The adsorption energy, Bader charge transfer, energy gap, and its variation after adsorption are the essential parameters that hold up the discussion on RTANS base material as an efficient chemical sensor. Moreover, the target vapor NG is physisorbed on RTANS. Besides, all the essential parameters have been investigated for the interaction of NG on RTANS. The comprehensive study reveals that RTANS can be used as a chemical sensor for the detection of nitroglycerin vapors.
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Affiliation(s)
- J Princy Maria
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Molecular interaction studies of cumene and toluene on δ-arsenene nanosheet – a first-principles outlook. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1800853] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R. Bhuvaneswari
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - V. Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
| | - R. Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur, India
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. Interaction studies of aniline on pristine and Al-doped ε-Arsenene nanosheets – A first-principles insight. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137588] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Nagarajan V, Chandiramouli R. Adamsite and chloropicrin molecular adsorption studies on novel green phosphorene nanotube – First-principles investigation. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110782] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bhuvaneswari R, Nagarajan V, Chandiramouli R. DFT Outlook on Surface Adsorption Properties of Nitrobenzene on Novel Red Tricycle Arsenene Nanoring. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01633-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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