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Open Access Veröffentlicht von 10. September 2013 bis 1. Januar 2021

Nanofabrication

ISSN: 2299-680X

Über diese Zeitschrift

Starting from 2022, the journal is no longer published by De Gruyter. The new journal website is accessible at: https://eaapublishing.org/journals/index.php/nanofab/index. Also, the new submissions can be sent to editorial@eaapublishing.org.

Nanofabrication published multi- and interdisciplinary works from researchers in the broad field of micro- to nanostructuring and device fabrication. Scientist interested in the advances on micro- and nanoscale patterning methods and the application of structures generated by these in applied physics, biomedical and life sciences are the target audience of the journal.

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Zusatzmaterial

Fachgebiete

Band 6 Heft 1

Januar 2021

Open Access 17. Dezember 2021

pH-responsive cisplatin-loaded niosomes: synthesis, characterization, cytotoxicity study and interaction analyses by simulation methodology

Saman Sargazi, Seyedeh Maryam Hosseinikhah, Farshid Zargari, Narendra Pal Singh Chauhana, Mohadeseh Hassanisaadi, Soheil Amani

Seiten: 1-15

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Abstract

Cisplatin (Cis) is an effective cytotoxic agent, but its administration has been challenged by kidney problems, reduced immunity system, chronic neurotoxicity, and hemorrhage. To address these issues, pH-responsive non-ionic surfactant vesicles (niosomes) by Span 60 and Tween 60 derivatized by cholesteryl hemisuccinate (CHEMS), a pH-responsive agent, and Ergosterol (helper lipid), were developed for the first time to deliver Cis. The drug was encapsulated in the niosomes with a high encapsulation efficiency of 89%. This system provided a responsive release of Cis in pH 5.4 and 7.4, thereby improving its targeted anticancer drug delivery. The noisome bilayer model was studied by molecular dynamic simulation containing Tween 60, Span 60, Ergosterol, and Cis molecules to understand the interactions between the loaded drug and noisome constituents. We found that the platinum and chlorine atoms in Cis are critical factors in distributing the drug between water and bilayer surface. Finally, the lethal effect of niosomal Cis was investigated on the MCF7 breast cancer cell line using 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Results from morphology monitoring and cytotoxic assessments suggested a better cell-killing effect for niosomal Cis than standard Cis. Together, the synthesis of stimuli-responsive niosomes could represent a promising delivery strategy for anticancer drugs.

Open Access 17. Dezember 2021

Development of mucoadhesive thiomeric chitosan nanoparticles for the targeted ocular delivery of vancomycin against Staphylococcus aureus resistant strains

Faryal Jahan, Shahiq uz Zaman, Sohail Akhtar, Rabia Arshad, Ibrahim Muhammad Ibrahim, Gul Shahnaz, Abbas Rahdar, Sadanand Pandey

Seiten: 16-24

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Abstract

This study aims to formulate mucoadhesive vancomycin loaded thiolated chitosan (TCS) nanoparticles. These nanoparticles are mucoadhesive and enhance the retention of the drug at the ocular site. For this purpose, TCS loaded vancomycin nanoparticles were prepared by the ion-gelation method and were characterized for their size, shape, polydispersity index, mucoadhesion, cellular uptake and anti-inflammatory activity. The average size of the synthesized nanoparticles was found to be 288 nm with positive zeta potential. Moreover, 85% vancomycin was successfully encapsulated in TCS nanoparticles by using this method. A 2-fold increase in mucoadhesion was found as compared to non-thiolated vancomycin formulation (p < 0.05). Zone of inhibition of vancomycin loaded TCS was also significantly improved compared to non-thiolated chitosan nanoparticles and vancomycin alone. In-vivo anti-inflammatory evaluation via histopathology resulted in ocular healing. Based on the results, it is inferred that TCS nanoparticles are a promising drug delivery carrier system for ocular delivery of vancomycin.

Open Access 30. Dezember 2021

Synthesis, characterization and anticancer activities of silver nanoparticles from the leaves of Datura stramonium L.

Gourav Chandan, Soumya Pal, Sheetal Kashyap, Samarjeet Singh Siwal, Shakti K. Dhiman, Adesh K. Saini, Reena V. Saini

Seiten: 25-35

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Abstract

In recent years, a wide range of studies has pointed out the role of nanoparticles as reservoirs of therapeutics for several diseases, including cancer. Nowadays, cancer research is focused on the development of novel treatment approaches to fight this dreadful disorder. Based on the evidential research and applications of nanoparticles, it is expected that green synthesized nanoparticles may show a prominent role, especially in the biomedical field. The present work is centered on the preparation and characterization of silver nanoparticles (Ag-NPs) from the aqueous (AQ) extract and non-alkaloidal (NA) fraction of Datura stramonium leaves and to evaluate their anticancer potential against mammalian cell lines. The biogenic Ag-NPs are characterized by UV-vis spectra, FTIR DLS, UV-Vis, SEM, and TEM. SEM and TEM analysis reveals the spherical morphology of NPs. The Ag-NPs exhibit cytotoxicity against various mammalian cell lines (A549, HCT-116, PANC-1, SHSY5Y, and U87), which indicate that the AQ and NA based NPs are highly potent to cause cancer cell death. To the best of our knowledge, the present report, for the first time, describes the green synthesis of Ag-NPs from the NA fraction of the D. stramonium and provides pieces of evidence for its anticancer potential.

Open Access 30. Dezember 2021

Nanofabrication route to achieve sustainable production of next generation defect-free graphene: analysis and characterisation

Shikhar Misra, Nirmal Kumar Katiyar, Arvind Kumar, Saurav Goel, Krishanu Biswas

Seiten: 36-43

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Abstract

In the past two decades, graphene has been one of the most studied materials due to its exceptional properties. The scalable route to cost-effective manufacture defect-free graphene has continued to remain a technical challenge. Intrinsically defect-free graphene changes its properties dramatically, and it is a challenging task to control the defects in graphene production using scaled-down subtractive manufacturing techniques. In this work, the exfoliation of graphite was investigated as a sustainable low-cost graphene manufacturing technique. The study made use of a simple domestic appliance e.g. , a kitchen blender to churn graphene in wet conditions by mixing with N-Methyl-2-pyrrolidone (NMP). It was found that the centrifugal force-induced turbulent flow caused by the rotating blades exfoliates graphite flakes to form graphene. The technique is endowed with a high yield of defect-free graphene (0.3 g/h) and was deemed suitable to remove 10% fluoride content from the water and color absorption from fizzy drinks.

Open Access 30. Dezember 2021

Eco friendly synthesis and characterization of zinc oxide nanoparticles from Aegle marmelos and its cytotoxicity effects on MCF-7 cell lines

Manikandan Dhayalan, Malathi Selvaraj, Kumar B Karthick, Riyaz S.U. Mohammed, Mika Sillanpää

Seiten: 44-51

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Abstract

An attempt was made to synthesize zinc oxide gum white nanoparticles (ZnO-GWNPs) by the greenway approach using Aegle marmelos (Bael fruit) juice extract as a capping and reducing agent. Synthesis of ZnO-GWNPs by greener approach is safer, more economical, more energy-efficient, eco-friendlier, and less toxic than chemically synthesized counterparts. The optical properties of the ZnO-GWNPs were ascertained through UV-Vis spectroscopy, Fourier Transform-Infrared (FT-IR), X-ray diffraction (XRD), High-resolution transmittance electron microscopy (HRTEM). A characteristic absorption peak at 385nm confirmed the presence of ZnO-GWNP using UV-Vis spectroscopy. FTIR spectrum revealed that the characteristic absorption peak of the Zn-O bond was observed at 467 cm-1. The XRD result for the ZnO showed the tendency of the three most intense diffraction peaks. The average crystallite size ZnO NPs at scattering angle (2 θ ) 22.89 and 32.15 was 39.14 and 26.08 nm and it showed the presence of miller indices of (100), (002), (101), (102) respectively. The EDX spectrum gave strong signals for zinc and oxygen indicating the occurrence of the nanoparticles in their oxide form rather than the pure zinc form. The SEM image showed the surface morphology of ZnO-GW NPs and the HR-TEM image showed the crystalline nature of ZnO-GW NPs. Cytotoxicity study of ZnO-GW NPs was determined against MCF-7 cell lines and the IC50 values were found to be 40 µg/mL and 60 µg/mL at 24 h and 48 h respectively.

Open Access 31. Dezember 2021

Green synthesis of silver nanoparticles and evaluation of their anti-bacterial activities: use of Aloe barbadensis miller and Ocimum tenuiflorum leaf extracts

Saurabh Sharma, Kuldeep Kumar, Naveen Thakur

Seiten: 52-67

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Abstract

The presence of various phytochemicals makes the leaf extract-based green synthesis advantageous to other conventional methods, as it facilitates the production of non-toxic by-product. In the present study, leaf extracts from two different plants: Aloe barbadensis miller and Ocimum tenuiflorum , were used to synthesise Ag nanoparticles. The absorbance at 419-432 nm from UV-visible spectroscopy indicates the formation of Ag in the synthesised samples. The effect of precursors’ concentration on the stability, size and shape of the synthesised samples has also been investigated at constant heating temperature, stirring time, and the pH of the solution. The TEM results showed that all the synthesised samples of nanoparticles demonstrated stability with a size range of 7-70 and 9-48 nm with Aloe barbadensis miller and Ocimum tenuiflorum leaf extracts, respectively. The formation of smaller Ag nanoparticles due to utilisation of different precursor concentration and leaf extracts was also explained. The synthesised samples’ anti-bacterial activity was examined against the pathogens, Bacillus subtilis , Staphylococcus aureus , and Escherichia coli . In general, the green synthesis approach established a prospective for developing highly stable Ag nanoparticles with rigid particle shape/size distribution from different leaf extracts for the development of better anti-bacterial agents.

Open Access 31. Dezember 2021

Synthesis and characterization of PCU@C-Ag/AgCl nanoparticles as an antimicrobial material for respiratory tract infection

Senthilkumar Palanisamy, Kalaivani Subramanian, Lerince Godrina Bennet, Janani Ambrose, Aganiya Gopalakrishnan, Sudhagar Babu, Ranjithkumar Rajamani, Niraj Kumar Jha, Soumya Pandit, Sachin Kumar Singh, Kamal Dua, Piyush Kumar Gupta

Seiten: 68-78

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Abstract

The pregnant cow urine (PCU) is an active source of antimicrobial agents that is used for fabricating chitosan coated Ag/AgCl nanoparticles (NPs) in the present study. These PCU@C-Ag/AgCl NPs were physicochemically characterized and evaluated for antimicrobial activity against selected respiratory tract infection (RTI) pathogens. The absorption band around 420 nm in UV-Visible spectrum indicated the presence of Ag NPs. The spherical shape of NPs was observed using TEM. Also, the crystalline structure was confirmed using the XRD pattern. The PCU@C-Ag/AgCl NPs showed strong antimicrobial activity against all tested RTI pathogens. In addition, FESEM analysis showed morphological changes in RTI bacterial pathogens. Thereby, PCU@C-Ag/AgCl NPs may be used as an antimicrobial material to treat RTIs in near future at clinical level.

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Editorial

Journal Editor
Michael Hirtz, Karlsruhe Institute of Technology, Germany

Editorial Advisory Board
Stefano Cabrini, Lawrence Berkeley National Laboratory, USA
Pilar Cea, University of Zaragoza, Spain
Dong Chen, Zhejiang University, China
Lifeng Chi, Soochow University, China
Lucia Curri, Italian National Council Institute for Physical and Chemical Processes, Bari Division, Italy
Enzo Di Fabrizio, KAUST (King Abdullah University of Science and Technology), Saudi Arabia
Harald Fuchs, Westfälische Wilhelms-Universität Münster, Germany
Armin Gölzhäuser, University of Bielefeld, Germany
Andreas Herrmann, University of Groningen, Netherlands
Plinio Innocenzi, Università degli Studi di Sassari, Italy
Xu Jian, Ningbo University, China
Steven Lenhert, The Florida State University, USA
Chen Xiaodong, Nanyang Technological University, Singapore
Dongfeng Xue, Chinese Academy of Science, China
Stefan Zauscher, Duke University, USA
Hongjie Zhang, Chinese Academy of Sciences, China
Hua Zhang, Nanyang Technological University, Singapore

Associate Editors
Kai Liu, Changchun Institute of Applied Chemistry of Chinese Academy of Science, China
Giovanna Brusatin, University of Padova, Italy

Assistant Editors
Erika Zanchetta, University of Padova, Italy
Chao Ma, Zernike Institute for Advanced Materials, Netherlands

Language Editor
Naresh Kumar, National Physical Laboratory, UK
Melissa Loving, Northeastern University, USA
Ali Rae, National Physical Laboratory, UK
Jiaqi Song, University of Sussex, United Kingdom

Publisher
DE GRUYTER Poland
Bogumiła Zuga 32A Str.
01-811 Warsaw, Poland
T: +48 22 701 50 15

Editorial Contact
Michael Hirtz
Nanofabrication.Editorial@degruyter.com

(English)

Typ: Zeitschrift
Sprache: Englisch
Verlag: De Gruyter Open Access
Erstveröffentlichung: 10. September 2013
Letzte Veröffentlichung: 1. Januar 2021
Erscheinungsweise: 1 Heft pro Jahr