Size-tunable green synthesis of platinum nanoparticles using chlorogenic acid

Chen, Rong; Wu, Songshuai; Meng, Chuangang

doi:10.1007/s11164-020-04377-4

Cited by 9 publications

(3 citation statements)

References 35 publications

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“…Similarly, platinum nanoparticles (PtNPs) synthesized utilizing CGA as a reducing agent demonstrated a high DPPH radical scavenging rate of more than 95%, which was attributed to the increased antioxidant activity of bioconjugation of CGA to the surface of the PtNPs. 106 TEM images of AuNPs reduced with trisodium citrate and CGA revealed a variety of AuNPs with varying particle sizes (18.94 ± 1.81–48.72 ± 6.47 nm). 107 In particular, CGA-AuNPs with small particle sizes had a more significant antibacterial impact on E. coli and S. aureus than large particles.…”

Section: Classification Of the Compounds Employed In The Synthesis Of...mentioning

confidence: 99%

Retrospective analysis of the key molecules involved in the green synthesis of nanoparticles

et al. 2022

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Section: Classification Of the Compounds Employed In The Synthesis Of...mentioning

confidence: 99%

Retrospective analysis of the key molecules involved in the green synthesis of nanoparticles

et al. 2022

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“…SCG have been demonstrated to be as effective a reducing agent in nanoparticle synthesis as traditional reagents [75]. To date, coffee and coffee bean extract have been used to synthesize silver [75][76][77][78], gold [75,79], platinum [80], palladium [78], copper [81,82], zinc oxide [83], selenium [79], alumina [84], and carbon nanoparticles [85,86].…”

Section: Introductionmentioning

confidence: 99%

Variables Affecting the Extraction of Antioxidants in Cold and Hot Brew Coffee: A Review

Yust,

Wilkinson,

Rao

2023

Antioxidants

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Coffee beans are a readily available, abundant source of antioxidants used worldwide. With the increasing interest in and consumption of coffee beverages globally, research into the production, preparation, and chemical profile of coffee has also increased in recent years. A wide range of variables such as roasting temperature, coffee grind size, brewing temperature, and brewing duration can have a significant impact on the extractable antioxidant content of coffee products. While there is no single standard method for measuring all of the antioxidants found in coffee, multiple methods which introduce the coffee product to a target molecule or reagent can be used to deduce the overall radical scavenging capacity. In this article, we profile the effect that many of these variables have on the quantifiable concentration of antioxidants found in both cold and hot brew coffee samples. Most protocols for cold brew coffee involve an immersion or steeping method where the coffee grounds are in contact with water at or below room temperature for several hours. Generally, a higher brewing temperature or longer brewing time yielded greater antioxidant activity. Most studies also found that a lower degree of coffee bean roast yielded greater antioxidant activity.

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“…Moreover, 5-CQA has found applications in the synthesis of metals’ nanoparticles as a reducing and stabilizing agent [ 28 , 29 ]; in the production modification of carbon ceramic electrode for NADH detection [ 30 ]; in red food dye preparation from coupling of tryptophan and 5-CQA [ 31 ]; and the preservation of food by preparing the edible coating with chitosan [ 32 ]. This compound is also referred to as the major compound from instant coffee extract responsible for graphene green production from graphite and functionalization [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Advances in Production of Hydroxycinnamoyl-Quinic Acids: From Natural Sources to Biotechnology

Valanciene

Malys

2022

Antioxidants

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Hydroxycinnamoyl-quinic acids (HCQAs) are polyphenol esters formed of hydroxycinnamic acids and (-)-quinic acid. They are naturally synthesized by plants and some micro-organisms. The ester of caffeic acid and quinic acid, the chlorogenic acid, is an intermediate of lignin biosynthesis. HCQAs are biologically active dietary compounds exhibiting several important therapeutic properties, including antioxidant, antimicrobial, anti-inflammatory, neuroprotective, and other activities. They can also be used in the synthesis of nanoparticles or drugs. However, extraction of these compounds from biomass is a complex process and their synthesis requires costly precursors, limiting the industrial production and availability of a wider variety of HCQAs. The recently emerged production through the bioconversion is still in an early stage of development. In this paper, we discuss existing and potential future strategies for production of HCQAs.

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Size-tunable green synthesis of platinum nanoparticles using chlorogenic acid

Cited by 9 publications

References 35 publications

Retrospective analysis of the key molecules involved in the green synthesis of nanoparticles

Retrospective analysis of the key molecules involved in the green synthesis of nanoparticles

Variables Affecting the Extraction of Antioxidants in Cold and Hot Brew Coffee: A Review

Advances in Production of Hydroxycinnamoyl-Quinic Acids: From Natural Sources to Biotechnology

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