EXTRACTION AND CHARACTERIZATION OF LIGNIN FROM CASHEW APPLE BAGASSE AIMING FUTURE APPLICATION WITHIN NEW MATERIALS

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

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Synthesis and structural and electrical characterization of new materials Bi3R2FeTi3O15

Physica B Condensed Matter ◽

10.1016/j.physb.2011.12.035 ◽

2012 ◽

Vol 407 (16) ◽

pp. 3099-3101 ◽

Cited By ~ 1

Author(s):

O.D. Gil Novoa ◽

D.A. Landínez Téllez ◽

J. Roa-Rojas

Keyword(s):

Electrical Characterization ◽

New Materials

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The Growth and Characterization of Germanium-Carbon Alloy Thin Films

MRS Proceedings ◽

10.1557/proc-270-91 ◽

1992 ◽

Vol 270 ◽

Author(s):

Haojie Yuan ◽

R. Stanley Williams

Keyword(s):

Thin Films ◽

Photoelectron Spectroscopy ◽

Vacuum Chamber ◽

Optical Band Gap ◽

High Vacuum ◽

Optical Absorption Spectroscopy ◽

Alloy Thin Film ◽

New Materials ◽

X Ray

ABSTRACTThin films of pure germanium-carbon alloys (GexC1−x with x ≈ 0.0, 0.2, 0.4, 0.5, 0.6, 0.8, 1.0) have been grown on Si(100) and A12O3 (0001) substrates by pulsed laser ablation in a high vacuum chamber. The films were analyzed by x-ray θ-2θ diffraction (XRD), x-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), conductivity measurements and optical absorption spectroscopy. The analyses of these new materials showed that films of all compositions were amorphous, free of contamination and uniform in composition. By changing the film composition, the optical band gap of these semiconducting films was varied from 0.00eV to 0.85eV for x = 0.0 to 1.0 respectively. According to the AES results, the carbon atoms in the Ge-C alloy thin film samples has a bonding configuration that is a mixture of sp2 and sp3 hybridizations.

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Fabrication of Ga-templates Using a Focused Ion Beam

MRS Proceedings ◽

10.1557/proc-1228-kk12-10 ◽

2009 ◽

Vol 1228 ◽

Cited By ~ 1

Author(s):

Hao Wang ◽

Greg C. Hartman ◽

Joshua Williams ◽

Jennifer L. Gray

Keyword(s):

Focused Ion Beam ◽

Ion Beam ◽

Processing Conditions ◽

New Materials ◽

Force Microscopy ◽

Atomic Force ◽

Nitridation Process ◽

Microscopy Characterization ◽

Device Technology

AbstractThere are many factors that have the potential to limit significant advances in device technology. These include the ability to arrange materials at shrinking dimensions and the ability to successfully integrate new materials with better properties or new functionalities. To overcome these limitations, the development of advanced processing methods that can organize various combinations of materials at nano-scale dimensions with the necessary quality and reliability is required. We have explored using a gallium focused ion beam (FIB) as a method of integrating highly mismatched materials with silicon by creating template patterns directly on Si with nanoscale resolution. These templates are potentially useful as a means of locally controlling topography at nanoscale dimensions or as a means of locally implanting Ga at specific surface sites. We have annealed these templates in vacuum to study the effects of ion dosage on local Ga concentration and topography. We have also investigated the feasibility of creating Ga nanodots using this method that could eventually be converted to GaN through a nitridation process. Atomic force microscopy and electron microscopy characterization of the resulting structures are shown for a variety of patterning and processing conditions.

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Obtaining and Characterization of New Materials

Materials ◽

10.3390/ma14216606 ◽

2021 ◽

Vol 14 (21) ◽

pp. 6606

Author(s):

Andrei Victor Sandu

Keyword(s):

Cutting Edge ◽

New Materials ◽

Special Issue

The main objective of this Special Issue was to publish outstanding papers presenting cutting-edge research in the field of new materials and their understanding [...]

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Characterization of Natural Fibers and Development of their Usability as New Materials in Future

Sen i Gakkaishi ◽

10.2115/fiber.50.p20 ◽

1994 ◽

Vol 50 (1) ◽

pp. P20-P21

Author(s):

NATSUKO KOHARA

Keyword(s):

Natural Fibers ◽

New Materials

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Morphology and molecular characterization of newly isolated microalgae strain Chlorella volutis LIPI13-WKT066 from Wakatobi Islands and its potential use

ANNALES BOGORIENSES ◽

10.14203/ann.bogor.2019.v23.n1.13-19 ◽

2019 ◽

Vol 23 (1) ◽

pp. 13

Author(s):

Delicia Yunita Rahman ◽

Swastika Praharyawan ◽

Sapto Raharjo ◽

Farizul Fadiyah ◽

Dwi Susilaningsih

Keyword(s):

Amino Acid ◽

Molecular Characterization ◽

Acid Content ◽

National Park ◽

Amino Acid Content ◽

Morphological Observation ◽

Future Application ◽

Health Application ◽

Potential Use

Morphology and molecular characterization of microalgae isolated from Wakatobi Marine National Park was conducted. An understanding of the characteristics of morphology, molecular, as well as metabolites profile of the microalgae species is potentially useful for its future application. The primary aim of this study was to isolate, identify and characterize the microalgae strain isolated from Wakatobi Marine National Park labeled as LIPI13-WKT066 with the emphasis on the evaluation of amino acid content as a basis for its health application. Morphological observation under the microscope and molecular identification suggested that the microalgae strain of LIPI13-WKT066 belong to the strain under species of Chlorella volutis. Metabolite characterization of the microalgae strain showed that the content of protein (11.9%), lipid (12.4%) and carbohydrate (4.7%) was in the regular range. Further analysis of its amino acid content revealed the potency of the microalgae strain to be used as antihypertensive agent.

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