Use of Safe Substances as Additives for PVC Films and
· Some additives used in polymeric products can cause health problems thus lowering migration of such substances from the polymeric matrix is of concern. Given that migration is sometimes inevitable the use of safe additives is an alternative. This work demonstrates the viability of employing generally recognized as safe (GRAS) substances (citric acid vitamin C and vitamin E) on PVC films
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Synthesis of Si/rGO nano-composites as anode electrode for
· The use of organic molecules such as citric acid as a binder has a unique effect on Si anode stabilization due to its flexibility and non-toxic properties. This acid reacts with GO functional groups due to carboxyl and hydroxyl functional groups and therefore causes adhering of Si nanoparticles to graphene plates . Also the presence of this acid and the CTAB prevented the nanoparticles from bonding to
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Dr. Farhad Golestani FardIran University of Science
M. Nouri-Khezrabad A.P. Luz F. Golestani-Fard H.R. Rezaie V.C. Pandolfelli. "Citric acid role and its migration effects in nano-bonded refractory castables" Ceramics International. 40 14523–14527 (2014) F. Golestanifard M. Taheri. Iranian Ceramic Industry at a Glance. CFI-CERAMIC FORUM INTERNATIONAL. 91 20-22 (2014)
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Carbon nanodots revised the thermal citric acid/urea
Carbon nanodots revised the thermal citric acid/urea reaction V. Strauss H. Wang S. Delacroix M. Ledendecker and P. Wessig Chem. Sci. 2020 11 8256 DOI 10.1039/D0SC01605E This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC provided that the
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Role of Slow-Release Nanocomposite Fertilizers on Nitrogen
· Stearic acid 1 (w.w −1) and 1 citric acid (w.w −1) were added to this blend. This final formulation was processed on a co-rotating twin screw extruder (L/D = 40 ZSK-18 Coperion model
Get PriceNovel pH-sensitive and biodegradable micelles for the
· Functionalization of PMA–OH with citric acid grafting Firstly citric acid (CA 1.715 g 0.00816 mol) was dissolved in dry N N-dimethyl formamide (DMF 32 mL) in a two-necked round-bottom flask under N 2 bubbling and stirring. After 10 min solid sodium hydride (NaH 0.51 g 0.021 mol) was added to the solution gradually and mixed.
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Steric effects. I. Esterification and acid-catalyzed
· Migration regularity of phthalates in polyethylene wrap film of food packaging. Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid. Advances in Polymer Characterization of nano FeIII-tannic acid modified polyacrylate in controlled-release coated urea
Get PriceNovel pH-sensitive and biodegradable micelles for the
· Functionalization of PMA–OH with citric acid grafting Firstly citric acid (CA 1.715 g 0.00816 mol) was dissolved in dry N N-dimethyl formamide (DMF 32 mL) in a two-necked round-bottom flask under N 2 bubbling and stirring. After 10 min solid sodium hydride (NaH 0.51 g 0.021 mol) was added to the solution gradually and mixed.
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Proton transfer in hydrogen-bonded degenerate systems of
· A H-bonded degenerate system of a conducting medium through acid–base chemistry is an interesting platform to design efficient solid-state proton conductors. In particular H 2 O and NH 3 having an attractive conjugate acid–base system (H 3 O –H 2 O OH − –H 2 O and NH 4 –NH 3 systems) are efficient conducting media because of
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Preparation of Citric Acid Fermentation Waste-Based Mulch
· Solid-state citric acid fermn. was conducted in a 12-L rotating drum type bioreactor. The effect of inducers ethanol and methanol were studied on citric acid bioprodn. by Aspergillus niger NRRL 567 cultivated on apple pomace as a solid-substrate. Optimum conditions achieved for higher citric acid
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The Nanomaterial Metabolite Corona Determined Using a
· However the trend for citric acid to bind to a greater extent in the presence of protein remains suggesting that in the case of citric acid it is through the proteins that the adsorption is driven whereas for the IMP F-6-P ethyl sulfate and L-2-phosphoglyceric acid it is direct interaction with the NM and its surface modification which
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Volume 11 Issue 1 Article Issues BioResources
· The effects of citric acid on the curing properties of tannin-sucrose adhesives and on the physical properties of particleboard utilizing the adhesives were investigated. The citric acid content of tannin-sucrose adhesive was adjusted to 0.4 1.8 4.6 13.8 20.0 and 33.3 which corresponded to pH values of the adhesive 40 wt solution at 3.8
Get PriceGround-State Heterogeneity along with Fluorescent
· The integrity of fluorescent carbon dot (FCD) emission deserves its highest appreciation when sample purification is performed with extreme care. Several controversial phenomena of FCD fluorescence including excitation-dependent emission spectral migration with time and thereby violation of the Kasha–Vavilov rule which sparked intense debate during recent reports disappeared when we
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Citric acid A green cross-linker of biomaterials for
· Biomaterials that are cross-linked with citric acid (CA) also called citrate-based biomaterials (CBBs) have exhibited advanced in-vitro and in-vivo material properties that make them suitable for various biomedical applications. Tunable mechanical properties biocompatibility and biofunctionality are among other factors that make CBBs interesting in this field.
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Effects of atomic-level nano-structured hydroxyapatite on
· In this study we evaluated the effects of atomic-level nano-structured HA (110) surfaces on the adsorption of bone morphogenetic protein-7 (BMP-7) and its
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Biomimetic Effect of Nano-Hydroxyapatite in Demineralized
· Dietary habits with high consumption of acidic food can induce in orthodontic patients an increased risk of demineralization lesions around orthodontic brackets and bands. The purpose of the present laboratory study is to assess the in vitro visual efficacy of a biomimetic nano-hydroxyapatite remineralizing solution in a hypomineralized enamel surface and its effect on adhesion of fixed
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Improved Cycling Performance of a Si Nanoparticle Anode
· Citric acid and its analogues have been investigated as surface-modifying agents for Si nanoparticle anodes using electrochemical cycling attenuated total reflectance infrared (ATR IR) and X-ray photoelectron spectroscopy (XPS). A Si nanoparticle anode prepared with citric acid (CA) has better capacity retention than one containing 1 2 3 4-butanetetracarboxylic acid (BA) but both electrodes
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Preparation of Citric Acid Fermentation Waste-Based Mulch
· Solid-state citric acid fermn. was conducted in a 12-L rotating drum type bioreactor. The effect of inducers ethanol and methanol were studied on citric acid bioprodn. by Aspergillus niger NRRL 567 cultivated on apple pomace as a solid-substrate. Optimum conditions achieved for higher citric acid
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Biomimetic Effect of Nano-Hydroxyapatite in Demineralized
· Dietary habits with high consumption of acidic food can induce in orthodontic patients an increased risk of demineralization lesions around orthodontic brackets and bands. The purpose of the present laboratory study is to assess the in vitro visual efficacy of a biomimetic nano-hydroxyapatite remineralizing solution in a hypomineralized enamel surface and its effect on adhesion of fixed
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Proton transfer in hydrogen-bonded degenerate systems of
· A H-bonded degenerate system of a conducting medium through acid–base chemistry is an interesting platform to design efficient solid-state proton conductors. In particular H 2 O and NH 3 having an attractive conjugate acid–base system (H 3 O –H 2 O OH − –H 2 O and NH 4 –NH 3 systems) are efficient conducting media because of
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Steric effects. I. Esterification and acid-catalyzed
· Migration regularity of phthalates in polyethylene wrap film of food packaging. Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid. Advances in Polymer Characterization of nano FeIII-tannic acid modified polyacrylate in controlled-release coated urea
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Multilayer packaging Advances in preparation techniques
· In an interesting study migration of nano silver particles from PS-combined composite films was analyzed using three different food stimulants such as 95 ethanol 10 ethanol and 3 acetic acid at 40°C for 2 4 6 8 and 10 days.
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Steric effects. I. Esterification and acid-catalyzed
· Migration regularity of phthalates in polyethylene wrap film of food packaging. Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid. Advances in Polymer Characterization of nano FeIII-tannic acid modified polyacrylate in controlled-release coated urea
Get PriceImproved Cycling Performance of a Si Nanoparticle Anode
· Citric acid was chosen because it is a small molecule and contains multiple functional groups i.e carboxylic acids and alcohol to ensure a strong interaction with silicon nanoparticles during electrode preparation. Thus a more uniform layer of citric acid is
Get PriceCarbon nanodots revised the thermal citric acid/urea
Citric acid and urea form a solid eutectic mixture at room temperature . H-Bonds between the two species are responsible for a drastic reduction of the melting point to ∼95 °C. The H-bond networks formed between citric acid and urea are expected to be rather complex due to the amphiphilic H-bond formation properties of both compounds.
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Steric effects. I. Esterification and acid-catalyzed
· Migration regularity of phthalates in polyethylene wrap film of food packaging. Comparative Studies of Combined Influence of Variables on the Esterification Degree of Pectin Extracted by Sulfuric Acid and Citric Acid. Advances in Polymer Characterization of nano FeIII-tannic acid modified polyacrylate in controlled-release coated urea
Get Price
Preparation of Citric Acid Fermentation Waste-Based Mulch
· Solid-state citric acid fermn. was conducted in a 12-L rotating drum type bioreactor. The effect of inducers ethanol and methanol were studied on citric acid bioprodn. by Aspergillus niger NRRL 567 cultivated on apple pomace as a solid-substrate. Optimum conditions achieved for higher citric acid
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Recent Progress in Preparation and Application of Nano
· Nano-chitin as a bioadhesive also has a good application prospect. It was found that citrate-based tissue adhesive (POEC-d) a mussel-inspired wet adhesive was prepared by one-pot melt polycondensation method using 1 8-octanediol polyethylene oxide (PEO) citric acid (CA) and dopamine (DA) as raw materials.
Get PriceNovel pH-sensitive and biodegradable micelles for the
· Functionalization of PMA–OH with citric acid grafting Firstly citric acid (CA 1.715 g 0.00816 mol) was dissolved in dry N N-dimethyl formamide (DMF 32 mL) in a two-necked round-bottom flask under N 2 bubbling and stirring. After 10 min solid sodium hydride (NaH 0.51 g 0.021 mol) was added to the solution gradually and mixed.
Get Price
Effects of atomic-level nano-structured hydroxyapatite on
· In this study we evaluated the effects of atomic-level nano-structured HA (110) surfaces on the adsorption of bone morphogenetic protein-7 (BMP-7) and its
Get Price
