M. Vanitha

Padjadjaran University

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N. Balasubramanian

Anna University, Chennai

I Made Joni

Padjadjaran University

Camellia Panatarani

Padjadjaran University

M. Jayaprakashvel

AMET University

Keerthi Praveen

Anna University, Chennai

N. Narmadhai

S. Vadivel

SRM Institute of Science and Technology

A. Muthukrishnaraj

Amrita Vishwa Vidyapeetham

Lukman Nulhakim

Sumatera Institute of Technology

Adil Hussain

Abdul Wali Khan University Mardan

Cooperative Institutions

Padjadjaran University

Anna University, Chennai

Bandung Institute of Technology

Tamil Nadu Agricultural University

AMET University

Alagappa University

SRM Institute of Science and Technology

Vellore Institute of Technology University

National Research and Innovation Agency

National Nuclear Energy Agency of Indonesia

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Graphene oxide–BiOBr composite material as highly efficient photocatalyst for degradation of methylene blue and rhodamine-B dyes

Journal of Water Process Engineering (2014)

S. Vadivel M. Vanitha A. Muthukrishnaraj N. Balasubramanian

Rhodamine B

Absorbance

Methylene blue

Visible spectrum

10.1016/j.jwpe.2014.02.003

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Citations (115)

Augmentation of graphite purity from mineral resources and enhancing % graphitization using microwave irradiation: XRD and Raman studies

Diamond and Related Materials (2018)

Made Joni I.M. Vanitha P. Camellia N. Balasubramanian

Carbon fibers

Graphite oxide

10.1016/j.diamond.2018.07.009

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Citations (63)

Characterization of Antibacterial Phytochemicals from Three Coastal Sand Dunes in Chennai Beaches

Biosciences Biotechnology Research Asia (2014)

M. Jayaprakashvel Swarnakala Swarnakala G. Surendiran M. Vanitha Altaf Hussain

Ipomoea sp and Spinifex sp most widely distributed salt tolerant plants and usually thrive in harsh condition .The present investigation was carried out to determine the antibacterial activity as well as phytochemical analysis using a GC-MS technique.The different solvent extracts ( ethyl acetate and methanol) of the plant were tested for antibacterial activity against human pathogens.The result highlighted that the antibacterial activity of ethyl acetate extract of Spinifex sp. panicle was especially active against P. aeruginosa(mean ; 21mm) and E. faecalis(mean ; 17mm). The extract concentration providing 50% inhibition (IC50) was calculated from the graph of inhibition percentage plotted against extract concentration (25-250 μg/mL) and IC50 is found to be 100 μg/mL which showed 53.3% inhibition ( 0.035 O.D) for E .faecalis. IC50 is found to be 225 μg/mL which showed 55.35% inhibition( 0.025 O.D) for P. aeruginosa. The phytochemical analysis of the crude extract revealed the presence of alkaloid, flavonoid, sugar, anthraquinones, saponines and phenolic compounds.In TLC, prominent bands were obsevered in Hexane and ethyl acetate combination of concentration 6:4.In bioautography, a clear zone was seen in the E. faecalis plate amended with agar.

Sand dune stabilization

10.13005/bbra/1417

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Citations (1)

Optimization of parameters and fabrication of Al-air batteries with economically feasible materials

Journal of Physics Conference Series (2018)

Camellia Panatarani M. Vanitha Lukman Nulhakim Zahra Inatsa Hauna I Made Joni

Design and fabrication of Al-air battery were done in this present work with economically viable raw materials. Optimization of anode material, catalyst concentration, current density and electrolyte concentration were carried out. Al 5083 as an anode material results in longer discharge time than Al 7075 and Al 6061 anode used in this study. Catalyst loading of 5% TiCl3, current density of 5 mA cm-2 and 10% of NaCl electrolyte were optimized. A single battery cell is fabricated using Al 5083 as an anode, air cathode which consists of graphite, paint as a binder with 5% TiCl3 as a catalyst and 10% NaCl as the electrolyte. The single cell exhibits voltage of about 0.8 V with 20 mA h-1 current capacity. The lifecycle of the fabricated battery is tested for four consecutive cycles which demonstrates almost similar shape in the charging and discharging curves representing better stability of the fabricated battery.

10.1088/1742-6596/1080/1/012046

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Citations (3)

Dispersion of amorphous silica nanoparticles via beads milling process and their particle size analysis, hydrophobicity and anti-bacterial activity

Advanced Powder Technology (2019)

I Made Joni M. Vanitha Camellia Panatarani Ferry Faizal

Zeta potential

Precipitated silica

Hydrophobic silica

Particle (ecology)

Amorphous silica

10.1016/j.apt.2019.10.029

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Citations (24)

タイナマズ飼育の水質に関する空気微細気泡の開発と性能評価【JST・京大機械翻訳】

AIP conference proceedings (2018)

Subhan Ujang M. Vanitha Azhary Sundoro Yoga Mulhadi Muhammad Fakhri Rochima Emma

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Characteristics of crystalline silica (SiO₂) particles prepared by simple solution method using sodium silicate (Na₂SiO₃) precursor

Journal of Physics Conference Series (2018)

I Made Joni Lukman Nulhakim M. Vanitha Camellia Panatarani

The crystalline silica (SiO2) particle is successfully prepared using simple solution method from sodium silicate (Na2SiO3) precursor. The FTIR spectrum of the sample confirms the presence of SiO2. The X-ray diffraction (XRD) shows that the sample is cristobalite type of SiO2 which is comparable with ICSD ref. number of 01-076-0941. The crystallite size is about 28 nm as calculated by Scherrer method and the average particle diameter was about 697 nm as confirmed by Particle Size Analyzer (PSA) measurement. The Scanning Electron Microscope (SEM) image reveals that the sample reveal micro-flake with irregular rod-shaped morphology. The purity of sample is examined by X-ray Fluorescence (XRF) which shows about 93.1 mass % of pure SiO2 whereas, the purity of the raw precursor Na2SiO3 before synthesis is about 60.5 Mass %. The synthesized SiO2 particles can be used for several applications, where SiO2 is used in its crystalline phase.

Particle (ecology)

10.1088/1742-6596/1080/1/012006

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Citations (72)

Manifestations Studies on Enzyme Profile of Vibrio parahaemolyticus MTCC451 Inoculated Black Tiger Prawn Penaeus monodon

Journal of Fisheries and Aquatic Science (2015)

Ramalingam Karthik Raja D. R. Shyamala N. Sri Kumaran R. Karthik M. Vanitha

Vibriosis is one of the major pathogenic bacterial diseases in shrimp aquaculture.Since, the disease patterns differ and the causes of the diseases are multifactorial, the results of such diagnostic profile tests could be correlated to the differing patterns of the disease.The present study aimed to evaluate the metabolic profile (biochemical and enzymatic) of V. parahaemolyticus MTCC 451inoculated black tiger prawn P. monodon (Fabricius).The injected V. parahaemolyticus MTCC451 resulted in the outbreak of vibriosis in the tested P. monodon.The levels of Alkaline phosphatase activity, Acid phosphatase activity, Lactate dehydrogenase activity, Glutamate Pyruvate Transaminase (GPT) activity, Glutamate Oxaloacetate Transaminase activity, Chitinase activity, Water content, Sodium, Potassium, Calcium, Ascorbic acid and Histamine in Haemolymph, Hepatopancreas and Body muscle of P. monodon control Vs tested were noted.The laboratory results of the present investigation, using the inoculum Vibrio parahaemolyticus MTCC451 revealed that these endemic bacterial populations might become opportunistic pathogens, when hydroecological conditions are altered in the farm ponds and could bring the fatal episodes of mass mortality.

Penaeus monodon

Tiger

Black Sea

10.3923/jfas.2015.477.488

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Superhydrophobic Ni-Reduced Graphene Oxide Hybrid Coatings with Quasi-Periodic Spike Structures

Nanomaterials (2022)

Ayi Bahtiar Mila Sri Hardiati Ferry Faizal M. Vanitha Camellia Panatarani

Recently, sophisticated technologies are applied to design a certain surface nature that can have superhydrophobic properties. Thus, a simple spray technique was introduced to prepare a superhydrophobic surface using rGO with Ni-S system (rGO-Ni) by using NiSO

Nickel oxide

Superhydrophobic coating

10.3390/nano12030314

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Citations (2)

Nanotechnology: Development and challenges in Indonesia

AIP conference proceedings (2018)

I Made Joni M. Vanitha Wawan Hermawan Camellia Panatarani

Nanotechnology today is regarded as a revolutionary technology that can help to address the key needs related to energy, environment, health and agriculture in developing countries. This paper is a short review on the development and challenges of nanotechnology in Indonesia. Nanotechnology offers great potential benefits, there is emerging concerns arising from its novel physicochemical properties. The main applications of nanotechnology in the different sectors which is vital and its economic impact in Indonesia is also discussed. The achievment and development of nanotechnology including synthesis and dispersion of nanoparticles (NPs) and its applications in various fields is briefly addressed in Nanotehcnology and Graphene Research Center, Universitas Padjadjaran (Unpad). Despite significant progress in developmental goals, many challenges in the development of nanotechnology proccesing need to be resolved such as support infrastructure and evolution of new form of collaborative arrangements between various sectors and policies which is emerged as an important factor enabling development.

Impact of nanotechnology

Applications of nanotechnology

10.1063/1.5021193

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Citations (2)