scholarly journals Electrospinning-Derived PLA/Shellac/PLA Sandwich—Structural Membrane Sensor for Detection of Alcoholic Vapors with a Low Molecular Weight

2019 ◽  
Vol 9 (24) ◽  
pp. 5419
Author(s):  
Shi-Cai Wang ◽  
Jun-Wei Liang ◽  
Ying-Bang Yao ◽  
Tao Tao ◽  
Bo Liang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Industrial Process ◽  
Fast Response ◽  
Poly Lactic Acid ◽  
Low Molecular Weight ◽  
Human Beings ◽  
Methanol Vapor ◽  
Alcohol Vapor ◽  
Structural Membranes ◽  
Short Time

The development of gas sensors for detecting alcoholic vapors with a low molecular weight is essential for environmental protection, industrial process control, and the monitoring of the living atmosphere in daily life to avoid health problems in human beings. Here, poly (lactic acid) (PLA)/shellac/PLA sandwich-structural membranes were fabricated via an electrospinning approach and the interaction with alcoholic vapors with a low molecular weight was investigated. It was found that the PLA/shellac/PLA sandwich-structural membrane exhibited fast response to the alcoholic vapors with low molecular weight, especially for methanol vapor. After being treated with alcohol vapor with a low molecular weight, the PLA/shellac/PLA sandwich-structural membrane could change its transmission in a short time (~5 s) and with a concentration of 10 wt% of methanol (ethanol) in water. In the meantime, the PLA/shellac/PLA sandwich-structural membrane can hopefully be potentially used again after evaporating the alcoholic vapor at an elevated temperature.

scholarly journals Blends of low molecular weight of poly lactic acid (PLA) with gondorukem (gum rosin)

2018 ◽  
Author(s):  
Mujtahid Kaavessina ◽  
Sperisa Distantina ◽  
Achmad Chafidz ◽  
Aditya Utama ◽  
Venisa Mega Puteri Anggraeni
Keyword(s):  
Molecular Weight ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Low Molecular Weight ◽  
Gum Rosin

scholarly journals PLANT AND FOOD METABOLOMICS IN THE POST-GENOMIC ERA: CONCEPTS, METHODOLOGIES AND APPLICATIONS

1970 ◽  
Vol 62 ◽  
Author(s):  
Carmen Socaciu
Keyword(s):  
Molecular Weight ◽  
Metabolic Profile ◽  
Organic Molecules ◽  
Living Organism ◽  
Critical Discussion ◽  
Low Molecular Weight ◽  
Small Organic Molecules ◽  
Metabolite Pool ◽  
Short Time ◽  
Metabolite Target Analysis

The metabolome (by analogy to genome, transcriptome, proteome) represents generally the total metabolite pool of a living organism, the entire complement of all the low molecular weight metabolites (small organic molecules, i.e. sugars, amino acids, flavours, acids, pigments, hormones) in biological samples such as a leaf, fruit, food, blood, etc. Metabolomics refers either to plants, microorganisms, food or animal and human organisms. Different specific aspects of fingerprinting, metabolic profile and metabolite target analysis are presented. A critical discussion of methodologies used in metabolomics is presented. Finally, there are mentioned the advantages offered by metabolomics versus genomics and their applications, i.e. a tremendous number of measurements to be done in short time and with high resolution and sensitivity, to realize “maps” of plants and their derived products.

scholarly journals Ethnopharmacological review of traditional medicinal plants as immunomodulator

2021 ◽  
Vol 6 (2) ◽  
pp. 043-055
Author(s):  
Ashvini Y. Parbat ◽  
Gunjan P. Malode ◽  
Aayesha R. Shaikh ◽  
Wrushali A. Panchale ◽  
Jagdish V. Manwar ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Immune System ◽  
Medicinal Plants ◽  
The Body ◽  
Low Molecular Weight ◽  
Human Beings ◽  
Immunomodulatory Agents ◽  
Cytokines And Chemokines ◽  
Traditional Medicinal Plants ◽  
Nitrogen Containing Compounds

Medicinal plants play significant roles in the prevention of human beings from various pathogenic microorganisms and diseases. The immunomodulators are agents used to modulate the immune system and can be obtained from both natural as well as synthetic origin from plants and chemicals. Alteration within the system is often achieved by immunomodulatory agents from a plant source, low molecular weight compounds like alkaloids and other nitrogen-containing compounds, terpenes, phenols, and high molecular weight compounds like lectins, polysaccharides. The Immune system is a part of the body to detect the pathogen by using a specific receptor to produce an immediate response by the activation of immune components cells, cytokines, and chemokines and also release of an inflammatory mediator. This review also discusses various ethnopharmacological information of traditional medicinal plants being used as immunomodulators.

NMR Analysis of Low Molecular Weight Poly(lactic acid)s

1996 ◽  
Vol 29 (10) ◽  
pp. 3535-3539 ◽  
Author(s):  
J. L. Espartero ◽  
I. Rashkov ◽  
S. M. Li ◽  
N. Manolova ◽  
M. Vert
Keyword(s):  
Molecular Weight ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Low Molecular Weight ◽  
Nmr Analysis
Sign in / Sign up

Export Citation Format

Share Document