Journal of nanoscience, nanoengineering & applications (vol4, issue1)

Journal of Nanoscience,

Nanoengineering & Applications

Jan - April 2014

(JoNSNEA)ISSN: 2321-5194

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Journal of NanoScience, NanoEngineering & Applications

Journal of NanoScience, NanoEngineering & Applications

(ISSN: 2321–5194)

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I take the privilege to present the hard copy compilation for the [Volume 4 Issue (1)] of Journal of

NanoScience, NanoEngineering & Applications (JoNSNEA). The intension of JoNSNEA is to

create an atmosphere that stimulates creativeness, research and growth in the area of NanoScience ,

NanoEngineering & Applications.

The development and growth of the mankind is the consequence of brilliant Research done by

eminent Scientists and Engineers in every field. JoNSNEA provides an outlet for Research findings

and reviews in areas of NanoScience , NanoEngineering & Applications found to be relevant for

National and International recent developments & research initiatives.

The aim and scope of the Journal is to provide an academic medium and an important reference for

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research in the domain of NanoScience, NanoEngineering & Applications.

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I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

Dr. Archana Mehrotra

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STM JOURNALS

1. Effect of Sintering Temperature on Current-Voltage Characteristics of Nanostructured Manganites Zalak Joshi, Davit Dhruv, N. A. Shah 1

2. Minimizing the Synthesis Time of Nanostructured Powders in Planetary Mills using Biogeography-based Optimization (BBO) Algorithm

Majid Abdellahi 6

3. Role of Nanotechnology in the Diagnosis and Treatment of Waterborne DiseasesAshutosh Debata, Darshan Panda, Sandeep Dhuper 19

4. Voltage-controlled TCR (Temperature Sensitivity) in Nanostructured Y Ca MnO /Si, 0.95 0.05 3

p-n Junction DiodeDavit Dhurv, J. H. Markna, P. S. Solanki, Nikesh A. Shah 29

5. Characterization and Stability Study of Synthesized Gold and Silver NanoparticlesPujashree A .K., Rajeshwari A., M.N. Chandraprabha, Amitava Mukherjee 33

6. Studies on Cr (VI) Removal from Aqueous Solution using Al O and ZnO Nanoparticles Composite2 3

Sunil Palani, Jastin Samuel, Chandraprabha M.N, Amitava Mukherjee 39

ContentsJournal of NanoScience, NanoEngineering & Applications

JoNSNEA (2014)© STM Journals 2014. All Rights Reserved

Journal of NanoScience, NanoEngineering & Applications ISSN: 2321-5194

Volume 4, Issue 1

www.stmjournals.com

Effect of Sintering Temperature on Current-Voltage

Characteristics of Nanostructured Manganites

Zalak Joshi, Davit Dhruv, N. A. Shah* Department of Electronics, Saurashtra University, Rajkot-360005, India

Abstract In the present communication, nanostructured Y0.95Ca0.05MnO3 manganites using low

cost sol-gel method have been synthesized. Samples were sintered at different

temperatures in order to change the particle size of the samples. The crystallite size is found to increase with sintering temperature due to crystal agglomeration effect. To

understand the transport properties of the presently studied samples, current-voltage (I-

V) characteristics have been carried out at room temperature. Effect of crystallite size on the transport has been discussed in detail. The variation in conduction and transport

mechanism with sintering temperature has been discussed in the context of oxygen non-stoichiometry and crystallite boundary density.

Keywords: I-V characteristics, manganites, sintering temperature

http://www.stmjournals.com/



Volume 4, Issue 1

www.stmjournals.com

Minimizing the Synthesis Time of Nanostructured

Powders in Planetary Mills using Biogeography-based

Optimization (BBO) Algorithm

Majid Abdellahi* Materials Engineering Department, Najafabad Branch, Islamic Azad University,

Najafabad, Iran

Abstract A key objective in processing of nanostructured powders via high-energy ball milling is

to minimize the synthesis time. This paper presents the application of biogeography-

based algorithm for optimization of milling parameters in order to minimize the synthesis

time of nanostructured powders in planetary mills. At first a direct relationship between the inverse of the milling time and the power of the planetary mill was established, which

allows the validation of theoretical models proposed in the literature for the energy transfer in milling devices and the comparison of milling equipment efficiencies.

Afterwards, based on the obtained relation, eight design parameters in milling, namely,

number of balls, ball diameter, vial radius, vial height, ball diameter distribution coefficient, plate spinning rate, vial spinning rate and distance between the center of the

plate and the center of the vial were optimized. Using these optimized variables in milling process the energy transferred to the raw materials was maximized or in the equivalent

expression the synthesis time of nanostructured powders was minimized. At the end, a test

case was solved to demonstrate the effectiveness and accuracy of the proposed design. Computational results showed that the proposed optimization algorithm is quite effective

and powerful in optimizing the planetary mills.

Keywords: Nanostructured powders, milling, optimization, planetary mill,

BBO algorithm



Volume 4, Issue 1

www.stmjournals.com

Role of Nanotechnology in the Diagnosis and Treatment

of Waterborne Diseases

Ashutosh Debata1*, Darshan Panda

2, Sandeep Dhuper

3

1Director of Research, DRIEMS , Tangi, Cuttack, Odisha, India

2,3Research Scholar, Department of Biotechnology, Ravenshaw University, Cuttack, Odisha, India

Abstract Nanotechnology provides new aspects for the treatment and diagnosis of diseases using

atomic scale engineering of materials. The size of nanoparticles is similar to that of most

biological molecules and structures; therefore, nanoparticles can be useful for both in

vivo and in vitro biomedical research and applications. At the same time, the unique

dimension of nanoparticles empowers them with special capabilities to successfully deliver the drug at the desired site. The integration of nanotechnology with biology has

led to the development of diagnostic devices, contrast agents, analytical tools, physical therapy applications, and drug delivery vehicles. Water borne diseases are responsible

for 4.0% of total annual deaths around the world. In the light of latest research,

nanotechnology-based diagnosis and treatment have been proved as more effective and sensitive in comparison to the traditional methods. The unique nanoparticle-conjugated

antibiotics are more efficient in showing their effect in comparison to the administration

of the latter alone. At the same time, nanoparticle-labeled bio-sensors have proved their efficacy for quick and precise diagnosis of various waterborne diseases. The development

of various combinations of nanoparticle drugs has multiple-fold benefit than a single antibiotic administered in diarrhea. This review article provides a bird’s eye view on the

recent advancements of nanotechnology-based treatment and diagnosis of waterborne

diseases.

Keywords: Nanotechnology, waterborne diseases, drug delivery, infection



Volume 4, Issue 1

www.stmjournals.com

Voltage-controlled TCR (Temperature Sensitivity) in

Nanostructured Y0.95Ca0.05MnO3/Si, p-n Junction Diode

Davit Dhurv1, J. H. Markna

1, P. S. Solanki

2, Nikesh A. Shah

3*

1Department of Nanotechnology, V.V.P Engineering College,

Gujarat Technological University, Rajkot, India 2Department of Physics, Saurashtra University, Rajkot, India

3Department of Electronics, Saurashtra University, Rajkot, India

Abstract The authors deposited a p-type Y0.95Ca0.05MnO3 on the n-type Si substrate using chemical solution deposition and form nanostructured Y0.95Ca0.05MnO3/n-Si, p-n junction diode

with typical thickness of about 100 nm with polycrystalline in nature. The diode exhibits

rectifying properties over the temperature range of 100–300 K. Voltage-dependent temperature sensitivity of Y0.95Ca0.05MnO3/n-Si, p-n junction diode has been studied in

current perpendicular to film plane (CPP) geometry. The maximum percentage of TCR values of −5.24% K

−1 at 200 K at applied diffusive potential below 1 V can be

understood in terms of diffusive voltage-dependent conduction through the interface of

nanostructured p-n junction diode.

Keywords: PN junction diode, TCR, multiferroic




Volume 4, Issue 1

www.stmjournals.com

Characterization and Stability Study of Synthesized

Gold and Silver Nanoparticles

Pujashree A .K.1, Rajeshwari A.

2, M.N. Chandraprabha

2*, Amitava Mukherjee

2

1Department of Biotechnology, M.S. Ramaiah Institute of Technology, Bangalore, India

2Centre for Nanobiotechnology, VIT University, Vellore, India

Abstract A basic initial characterization and stability study of synthesised gold and silver

nanoparticles was carried out. Silver nanoparticles were synthesised by modified Creighton’s method. Gold nanoparticles were synthesised by Turkevich method. The

synthesised nanoparticles were subjected to characterization studies using DLS, UV-VIS

spectrophotometer, pH meter, and the size characterization was studied using Mie plot and NNLs software. The objective of the study being to check the stability of the

nanoparticles for three trials, and the samples analyzed showed good pH stability, with a

variation of ± 1.0 throughout the study period, the samples being stored in refrigerator. An increase in particle size was observed as the study progressed, which may be due to

aggregation and oxidation towards the end of the study.

Keywords: nanoparticles, characterization, stability, particle size


JoNSNEA (2014) 39-45 © STM Journals 2014. All Rights Reserved Page 39


Volume 4, Issue 1

www.stmjournals.com

Studies on Cr (VI) Removal from Aqueous Solution using

Al2O3 and ZnO Nanoparticles Composite

Sunil Palani2, Jastin Samuel

1, Chandraprabha M.N

2*, Amitava Mukherjee

1

1Centre for Nanobiotechnology, VIT University, Vellore, India

2 Department of Biotechnology, M S Ramaiah Institute of Technology, Bangalore, India

Abstract Cr (VI) is a heavy metal and is considered to be toxic both to environment and human

beings after a permissible limit. The removal of Cr (VI) using conventional methods

was ineffective. With introduction of nanotechnology, the remediation of Cr (VI) has

become more easy and effective. Nanoalumina has been an efficient adsorbent system for the adsorption of different heavy metals. It has an excellent adsorption capacity

for metal ions such as Cr (VI), Cd (II) and Pb (II). Negatively charged ionic species

by electrostatic interaction are adsorbed on the positively charged surface of nanoalumina. Zinc oxide Nanoparticles (NPs) have excellent anti-fungal, anti-

bacterial and UV filtering properties. The use of ZnO NPs for the adsorption of Cr,

Cd (II) and Hg (II) ions from aqueous solution is also gaining importance. The current work utilizes both the nanoparticles for the adsorption of Cr (VI) from

aqueous solution. When this composite mixture was used it was found that the adsorption capacity was higher than adsorption capacity obtained when individual

NPs were used. Further studies regarding the mechanism of adsorption and

characterization studies have to be undertaken.

Keywords: NPs- nanoparticles, composite, UV filtering properties, nanoalumina


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Journal of nanoscience, nanoengineering & applications (vol4, issue1)