scholarly journals An eco-friendly facile approach for imparting multifunctional protection properties to cellulose/wool blends

2022 ◽  
Author(s):  
Nabil A. Ibrahim ◽  
Basma M. Eid ◽  
El-Amir M. Emam
Keyword(s):  
Citric Acid ◽  
Succinic Acid ◽  
Functional Properties ◽  
Uv Protection ◽  
Antibacterial Efficacy ◽  
Cotton Wool ◽  
Active Ingredients ◽  
Ag Nps ◽  
Edx Analysis ◽  
Microwave Fixation

AbstractA green facile nano-finishing route was developed to impart high antibacterial efficacy, UV-protection, self-cleaning and anti-wrinkle functions to cotton/wool and viscose/wool blends using TiO2, and/or Ag-NPs, as active ingredients, along with citric acid and/or succinic acid/ SHP as ester-crosslinking/fixing systems. The data so obtained demonstrated that outstanding durable functional properties can be achieved using the following formulation: TiO2/Ag-NPs (20 g/L each), citric acid/SHP (50 g/L/30 g/L) and the pad- dry microwave fixation at 1300 W for 5 min. SEM and EDX analysis for selected samples as well mode of interactions among the nominated finishing ingredients and the treated substrates were also investigated.

Completely green synthesis of silver nanoparticle decorated MWCNT and its antibacterial and catalytic properties

2016 ◽  
Vol 88 (1-2) ◽  
pp. 71-81 ◽  
Author(s):  
Sneha Mohan ◽  
Oluwatobi S. Oluwafemi ◽  
Sandile P. Songca ◽  
Didier Rouxel ◽  
Patrice Miska ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Green Synthesis ◽  
Silver Nanoparticle ◽  
Large Scale ◽  
Hybrid Nanocomposites ◽  
Antibacterial Efficacy ◽  
Hybrid Nanocomposite ◽  
Ag Nps ◽  
Simple Method ◽  
G Ratio

AbstractWe herein report a simple large scale green synthesis route for the synthesis of silver nanoparticle (Ag-NP) multi walled carbon nanotubes (MWCNTs) hybrid nanocomposite (Ag-MWCNTs). The as-synthesized hybrid nanocomposite were characterized using UV-Vis absorption spectroscopy, Fourier transform infra-red spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD) and high resolution transmission electron microscopy (HR-TEM). Raman spectroscopy analysis showed an increase in the D/G ratio of Ag-MWCNTs hybrid nanocomposites when compare with that of functionalized MWCNTs (F-MWCNTs) attributed to the presence of Ag-NPs on the surface of the F-MWCNTs. The as-synthesized Ag-MWCNTs nanocomposites showed strong antibacterial efficacy against Escherichia coli compared to the Ag-NPs and MWCNTs. The catalytic potential of the Ag-MWCNTs hybrid nanocomposite was investigated for the first time by studying the reduction of 4-nitrophenol to 4-aminophenol in the presence of sodium borohydride at 299 K at various reaction times. The reaction follows first order kinetics with a rate constant of 5.18×10−1 s−1. It is believed that, the large scale synthesis of such hybrid nanocomposites via simple method using non-toxic reagent will not only enhance its antibacterial efficacy, durability and biocompatibility, it will also minimize its biotoxcity and environmental impacts.

Anti-Thrombotic Effect of a Novel Formula from Corni Fructus with Malic Acid, Succinic Acid and Citric Acid

2013 ◽  
Vol 28 (5) ◽  
pp. 722-727 ◽  
Author(s):  
Qi-Chun Zhang ◽  
Yue Zhao ◽  
Hui-Min Bian
Keyword(s):  
Citric Acid ◽  
Succinic Acid ◽  
Malic Acid ◽  
Corni Fructus

Functional, nutritional and conformational changes from deamidation of wheat gluten with succinic acid and citric acid

2010 ◽  
Vol 123 (1) ◽  
pp. 123-130 ◽  
Author(s):  
Lan Liao ◽  
Tong-Xun Liu ◽  
Mou-Ming Zhao ◽  
Chun Cui ◽  
Bo-En Yuan ◽  
...  
Keyword(s):  
Citric Acid ◽  
Succinic Acid ◽  
Conformational Changes ◽  
Wheat Gluten

scholarly journals Influence of Nanofinishes on the Antimicrobial Properties of Fabrics

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
N. Gokarneshan ◽  
P. P. Gopalakrishnan ◽  
B. Jeyanthi
Keyword(s):  
Antibacterial Property ◽  
Antimicrobial Properties ◽  
Antibacterial Efficacy ◽  
Nano Materials ◽  
Cotton Wool ◽  
Natural Materials ◽  
Application Method ◽  
Synthetic Materials ◽  
Medical Textiles ◽  
Number Of Microorganisms

This paper critically reviews the influence of the various types of nanomaterials on the antibacterial property of the treated fabrics. The merits of each type of nanomaterial have been compared. The synthesis and application method of each type are highlighted. As the number of microorganisms is growing increasingly resistant to antibiotics, the need to treat fabrics with nano materials becomes important in order to improve the antibacterial efficacy over a range of bacterium and fungi. The various researches reported herein show a promise for wider applications in medical textiles. Nano finishes have been applied on natural materials such as cotton, wool, and silk and also synthetic materials such as PET fabrics, with interesting results.

scholarly journals Sugar and Nonvolatile Acid Composition of Blackberries

2010 ◽  
Vol 93 (3) ◽  
pp. 956-965 ◽  
Author(s):  
Ho-Ju Fan-Chiang ◽  
Ronald E Wrolstad
Keyword(s):  
Citric Acid ◽  
Succinic Acid ◽  
Acid Composition ◽  
Malic Acid ◽  
Titratable Acidity ◽  
Isocitric Acid ◽  
Objective Being

Abstract Sugar and nonvolatile acid analyses were conducted on 52 samples of blackberries (Rubus spp), the objective being to develop a compositional database for evaluating authenticity and quality. Brix ranged from 6.88 to 16.83, with a mean of 10.82. Titratable acidity ranged from 0.52 to 2.24 g citric acid/100 mL, with a mean of 1.35. Sucrose levels (range, 012.9; mean, 4.6) were highly variable. The overall glucose:fructose ratio ranged from 0.81 to 1.17, with a mean of 1.01. Malic, isocitric, lactoisocitric, citric, shikimic, and fumaric acids were identified, with succinic acid being present in some samples. Malic acid ranged from 5.2 to 35.3 of total acids (87.5603 mg/100 g), with a mean of 16.4 (280 mg/100 g). Isocitric acid ranged from 4.7 to 71.6, with a mean of 34.7 (599 mg/100 g), and lactoisocitric acid ranged from 3.4 to 32.6 with a mean of 17.3 (293 mg/100 g). Citric acid ranged from 1.3 to 80.2, with a mean of 31.6 (572 mg/100 g). Shikimic, fumaric, and succinic were present in trace quantities. Two patterns of nonvolatile acid compositions were evident. Ten commercial blackberry juice samples were analyzed, and it was possible to determine whether they were Marion, Evergreen, or a mixture of the two from their acid profiles.

Synergistic Antilisterial Effects of Mixtures of Lysozyme and Organic Acids

2016 ◽  
Vol 79 (12) ◽  
pp. 2184-2189 ◽  
Author(s):  
MYEONGGEUN OH ◽  
JOONGJAE LEE ◽  
YOONHWA JEONG ◽  
MISOOK KIM
Keyword(s):  
Acetic Acid ◽  
Lactic Acid ◽  
Citric Acid ◽  
Organic Acids ◽  
Succinic Acid ◽  
Malic Acid ◽  
Synergistic Effects ◽  
The Other ◽  
Food Preservative ◽  
Time Kill

ABSTRACT We investigated the synergistic effects of lysozyme combined with organic acids to inhibit the growth of Listeria monocytogenes. The antilisterial effects of the combination of lysozyme and acetic acid, citric acid, lactic acid, malic acid, or succinic acid were evaluated using the checkerboard method and time-kill assay. The MIC was 25,000 mg/liter for lysozyme, 625 mg/liter for acetic acid, and 1,250 mg/liter for the other acids. The MBC was 10,000 mg/liter for all of the tested organic acids. The combination of lysozyme and each organic acid showed synergistic effects via the checkerboard method; however, the time-kill assay showed synergistic effects for only three combinations of 1,250 mg/liter lysozyme with succinic acid (312 and 625 mg/liter) or malic acid (625 mg/liter). The results of this study indicate that the combination of lysozyme and malic acid or succinic acid can be effectively used as a food preservative to control L. monocytogenes.

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