Development of CuO particles onto bacterial cellulose sheets by forced hydrolysis: A synergistic approach for generating sheets with photocatalytic and antibiofouling properties

2019 ◽  
Vol 136 ◽  
pp. 1142-1152 ◽  
Author(s):  
N. Phutanon ◽  
K. Motina ◽  
Y.-H. Chang ◽  
S. Ummartyotin
Keyword(s):  
Bacterial Cellulose ◽  
Synergistic Approach ◽  
Forced Hydrolysis

SYNERGISTIC APPROACH TO THE TEACHING OF INFORMATICS AS AN ELEMENT OF THE DEVELOPMENT OF KEY COMPETENCIES OF STUDENTS

2019 ◽  
pp. 23-31
Author(s):  
M. M. Kiseleva
Keyword(s):  
Research Project ◽  
Synergistic Approach ◽  
Key Competencies

The article discusses the possibility of implementing modern educational tasks using a synergistic approach to the teaching of informatics. Lessons are presented within the framework of a research project using synergy ideas.

Incorporation of micro/nanoparticles of PCL with essential oil of Cymbopogon nardus in bacterial cellulose

2018 ◽  
Vol 1 (2) ◽  
pp. 37
Author(s):  
Aline Krindges ◽  
Vanusca Dalosto Jahno ◽  
Fernando Morisso
Keyword(s):  
Particle Size ◽  
Particulate Matter ◽  
Essential Oil ◽  
Zeta Potential ◽  
Bacterial Cellulose ◽  
Culture Medium ◽  
Static Culture ◽  
Cymbopogon Nardus ◽  
Cellulose Membranes

Incorporation studies of particles in different substrates with herbal assets growing. The objective of this work was the preparation and characterization of micro/nanoparticles containing cymbopogon nardus essential oil; and the incorporation of them on bacterial cellulose. For the development of the membranes was used the static culture medium and for the preparation of micro/nanoparticles was used the nanoprecipitation methodology. The incorporation of micro/nanoparticles was performed on samples of bacterial cellulose in wet and dry form. For the characterization of micro/nanoparticles were carried out analysis of SEM, zeta potential and particle size. For the verification of the incorporation of particulate matter in cellulose, analyses were conducted of SEM and FTIR. The results showed that it is possible the production and incorporation of micro/nanoparticles containing essential oil in bacterial cellulose membranes in wet form with ethanol.

What are the ranges and basis of auxeticity in the phases of cellulose microfibrils?

2017 ◽  
Author(s):  
Akwasi Asamoah
Keyword(s):  
Bacterial Cellulose ◽  
Raman Spectra ◽  
Laser Power ◽  
Microfibrillated Cellulose ◽  
Glass Slide ◽  
Flax Fibre ◽  
Cellulose Microfibrils

<p>One sample of 1D bundle of cellulose microfibrils in the form of lignified flax fibre (0.10526 mm x 10 mm), and one 2D networks of cellulose microfibrils in the form of tunicate cellulose (0.07 mm x 5 mm x 10 mm), bacterial cellulose (0.135 mm x 5 mm x 10 mm) and microfibrillated cellulose (0.08 mm x 5 mm x 10 mm) were put on a glass slide parallel to the principal spectrometer axis. Raman spectra were measured all round in-plane under both half (in 5° steps) polarisation from 0° to 360° in extended mode between 100 cm<sup>-1</sup> and 1150 cm<sup>-1</sup> in 3 accumulations at 10s exposure and 100% laser power. The cursor was placed at the peak of the 1095 cm<sup>-1</sup> band, and intensity read.</p>

Bacterial Cellulose

2002 ◽  
Author(s):  
Stanislaw Bielecki ◽  
Alina Krystynowicz ◽  
Marianna Turkiewicz ◽  
Halina Kalinowska
Keyword(s):  
Bacterial Cellulose

In vitrobiocompatibility of bacterial cellulose and Schwann cells

2015 ◽  
Vol 36 (3) ◽  
pp. 324
Author(s):  
Wei LIU ◽  
Wei-yong GU ◽  
Xia-jun ZHOU ◽  
Tian-yi ZHANG
Keyword(s):  
Bacterial Cellulose ◽  
Schwann Cells

Preparation and Photo-catalytic Activity of Cu-Supported Nano-TiO2

2020 ◽  
Vol 1 (1) ◽  
pp. 38-42
Author(s):  
Jun Yan
Keyword(s):  
Catalytic Activity ◽  
Methyl Orange ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflectance Spectroscopy ◽  
Nano Tio2 ◽  
Hydrolysis Method ◽  
Response Range ◽  
Photo Response ◽  
Forced Hydrolysis ◽  
Visible Photocatalytic Activity

Cu-supported nano-TiO2 catalyst was prepared by forced hydrolysis method under mild condition. The morphology, composition and optical absorption properties of the samples were characterized by means of scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and UV-Vis diffuse reflectance spectroscopy (UV-VIS DRS). Visible photocatalytic activity of the samples was investigated by photocatalytic degradation experiment on methyl orange. The results indicated that nano-TiO2 was about 20nm in size with the main form of anatase, and photo response range was significantly broadened after it was loaded on the surface of Cu. The sample possessed high visible light catalytic activity, with the degradation rate of methyl orange reaching 94% under simulated natural light.

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