scholarly journals Bacterial nanocellulose and fibroin: natural products to produce a structure membranes

2021 ◽  
Vol 26 (4) ◽  
Author(s):  
Victória Soares Soeiro ◽  
Louise Lacalendola Tundisi ◽  
Venâncio Alves Amaral ◽  
Fenando Batain ◽  
Priscila Gava Mazzola ◽  
...  
Keyword(s):  
Natural Products ◽  
Crosslinking Agent ◽  
Total Porosity ◽  
Bacterial Nanocellulose ◽  
Food Industries ◽  
Label Material ◽  
High Connectivity ◽  
Porous Morphology ◽  
Green Label ◽  
Structure Properties

ABSTRACT Fibroin (FB) and bacterial nanocellulose (BC) are natural products, being used in biomedicine, electronics, food industries and other areas. Both show biocompatibility, able to be used for many different purposes. The blending of fibroin and bacterial nanocellulose was design to produce a biocompatible material to be applied with a medical device. For this reason, the objective of this work was to evaluate the structure properties of the blending of BC and FB. Thus, FB was extracted from Bombyx mori and BC was produced by fermentation process utilizing Gluconacetobacter xylinus. The membranes composed of BC-FB were produced by immersion contact for 24 hours, at 25°C, in 100rpm; without crosslinking agent. After the production the membrane samples were dried and characterized by Fourier transform infrared spectroscopy (FTIR spectroscopy), mechanical proprieties, swelling efficiency, scanning electron microscopy (SEM) and computerized microtomography (µCt). Results indicate that the hydrogen-bonded porous membranes obtained displayed anisiotropic, closed and interconnected porous morphology. The morphometric characteristics, which resemble a honeycomb and consist of a long structure with high connectivity and high total porosity, amplify the areas of BC-FB blend applications, with potential utilization with optoelectronic devices, in areas ranging from environmental to tissue engineering. Furthermore, the production by immersion contact will allow the upscale process and the development of green label material.

Nutraceutical and Functional Foods in Cancer Management and Therapy

2022 ◽  
pp. 1144-1182
Author(s):  
Sakshi Bajaj ◽  
Satish Manchanda
Keyword(s):  
Natural Products ◽  
Cancer Cells ◽  
Functional Foods ◽  
The Body ◽  
Food Industries ◽  
Cancer Management ◽  
Consumer Demands

Cancer is an insidious disease affecting mankind in every country. The progression of cancer cells from one part of the body to another (metastasis) is one of the biggest problems in curing cancer. The present study brings new hope of future therapies to fight cancer. Designing an appropriate food to maintain proper health has become a necessity worldwide. Due to this, the food industries in many countries are modifying their products as a response to consumer demands. In recent years, many of the natural products are gaining popularity as nutraceuticals.

scholarly journals Natural Compounds: A Dynamic Field of Applications

2020 ◽  
Vol 10 (11) ◽  
pp. 4025 ◽  
Author(s):  
Ana M. L. Seca ◽  
Laila Moujir
Keyword(s):  
Natural Products ◽  
Essential Oils ◽  
Mechanism Of Action ◽  
Biological Activities ◽  
Natural Compounds ◽  
Research Field ◽  
Food Industries ◽  
Dynamic Field ◽  
New Methodologies ◽  
Active Research

Nature represents an amazing source of inspiration since it produces a great diversity of natural compounds selected by evolution, which exhibit multiple biological activities and applications. A large and very active research field is dedicated to identifying biosynthesized compounds, to improve/develop new methodologies to produce/reuse natural compounds and to assess their potential for pharmaceutical, cosmetic and food industries, among others, and also to understand their mechanism of action. Here, the main results presented in each work are highlighted. The applications suggested are mostly related to pharmacological uses and involve mainly pure natural compounds and essential oils. These works are significant contributions and reinforce the dynamic field of natural products applications.

Nutraceutical and Functional Foods in Cancer Management and Therapy

2019 ◽  
pp. 341-390
Author(s):  
Sakshi Bajaj ◽  
Satish Manchanda
Keyword(s):  
Natural Products ◽  
Cancer Cells ◽  
Functional Foods ◽  
The Body ◽  
Food Industries ◽  
Cancer Management ◽  
Consumer Demands

Cancer is an insidious disease affecting mankind in every country. The progression of cancer cells from one part of the body to another (metastasis) is one of the biggest problems in curing cancer. The present study brings new hope of future therapies to fight cancer. Designing an appropriate food to maintain proper health has become a necessity worldwide. Due to this, the food industries in many countries are modifying their products as a response to consumer demands. In recent years, many of the natural products are gaining popularity as nutraceuticals.

Porous copolymers of methacrylic acid with N-(2-hydroxypropyl) methacrylamide and (2-hydroxyethyl) methacrylate. Preparation, swelling and morphology

1979 ◽  
Vol 44 (6) ◽  
pp. 1925-1930 ◽  
Author(s):  
Jiří Vacík ◽  
Zdeněk Pelzbauer ◽  
Nadezhda N. Kuznetsova ◽  
Klavdia P. Papukova ◽  
Larisa K. Shataeva ◽  
...  
Keyword(s):  
Methacrylic Acid ◽  
Crosslinking Agent ◽  
Scanning Electron Microscopy Data ◽  
Hydroxyethyl Methacrylate ◽  
Electron Microscopy Data ◽  
Bulk Weight ◽  
Hydroxypropyl Methacrylamide ◽  
Porous Copolymers ◽  
Microscopy Data ◽  
Porous Morphology

Porous copolymers of methacrylic acid with N-(2-hydroxypropyl) methacrylamide or (2-hydroxyethyl) methacrylate were prepared using 1,3,5-triacryloylhexahydrotriazine as the crosslinking agent. The copolymers were characterized by their swelling, bulk weight, and morphologically by scanning electron microscopy. Data thus obtained were used in the interpretation of the formation of different porous morphology, differing in the size and ordering of globules.

Trace nanoanalysis

1994 ◽  
Vol 52 ◽  
pp. 940-941
Author(s):  
D. E. Newbury ◽  
R. D. Leapman
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Detection Efficiency ◽  
Volume Element ◽  
And Performance ◽  
Trace Constituents ◽  
Secondary Ion ◽  
Concentration Levels ◽  
Structure Properties

Trace constituents, which can be very loosely defined as those present at concentration levels below 1 percent, often exert influence on structure, properties, and performance far greater than what might be estimated from their proportion alone. Defining the role of trace constituents in the microstructure, or indeed even determining their location, makes great demands on the available array of microanalytical tools. These demands become increasingly more challenging as the dimensions of the volume element to be probed become smaller. For example, a cubic volume element of silicon with an edge dimension of 1 micrometer contains approximately 5×1010 atoms. High performance secondary ion mass spectrometry (SIMS) can be used to measure trace constituents to levels of hundreds of parts per billion from such a volume element (e. g., detection of at least 100 atoms to give 10% reproducibility with an overall detection efficiency of 1%, considering ionization, transmission, and counting).

Advancing the use of Voronoi–Dirichlet polyhedra to describe interactions in organic molecular crystal structures by the example of galunisertib polymorphs

CrystEngComm ◽  
2021 ◽  
Author(s):  
Viktor N. Serezhkin ◽  
Anton V. Savchenkov
Keyword(s):  
Crystal Structures ◽  
Molecular Crystal ◽  
Noncovalent Interactions ◽  
Organic Molecular Crystal ◽  
Universal Approach ◽  
Structure Properties

The universal approach for studying structure/properties relationships shows that every polymorph of galunisertib is characterized with unique noncovalent interactions.

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