Sesquiterpenes and other contituents from leaves of<i>Pterodon pubescens</i>Benth (Leguminosae)

Miranda, Mayker Lázaro Dantas; Garcez, Fernanda Rodrigues; Abot, Alfredo Raúl; Garcez, Walmir Silva

doi:10.5935/0100-4042.20140065

Cited by 13 publications

(9 citation statements)

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“…Plant extracts containing different carbohydrates, polyphenols, terpenoids, gum, proteins, saponins, sugar, steroids, and flavonoids may act as reducing agents during the synthesis of AgNPs. These biocapping compounds reduce agglomeration among NPs and allow better size control like chemical agents. , Various plant parts such as leaves, roots, shoots, petals, fruit, seeds, and peels can be used as fresh or dry powder to prepare the extract, which acts as a natural reducing agent .…”

Section: Sustainable and Green Engineering Approach For Agnps’ Synthesismentioning

confidence: 99%

Insights into Shape-Based Silver Nanoparticles: A Weapon to Cope with Pathogenic Attacks

Karade

Patil

Parit

et al. 2021

ACS Sustainable Chem. Eng.

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Silver nanoparticles (AgNPs) can be used to treat many clinical challenges due to their resourceful medicinal properties present in them. Moreover, AgNPs exhibits unique optoelectronic properties, distinct chemistry, high surface-to-volume ratio, and high avidity, making them principally suitable for healthcare applications. In the present perspective, size and shape-based AgNPs antimicrobial action are reviewed. Furthermore, the intrinsic features and plausible toxicity of AgNPs with emerging applications across daily life and healthcare categories are discussed. This perspective urges researchers to focus on the hazards of AgNPs before their utilization to deal with human diseases. Moreover, additional studies have been suggested concerning the sustainable engineering of nanoparticles toward safety and quality in human health complications. All these concerns are still considered a challenge because nanoparticle characterization is still in its infancy for implementation in human life. Finally, this perspective provides a scientific foundation for the construction of global accord guidelines in the future.

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Section: Sustainable and Green Engineering Approach For Agnps’ Synthesismentioning

confidence: 99%

Insights into Shape-Based Silver Nanoparticles: A Weapon to Cope with Pathogenic Attacks

Karade

Patil

Parit

et al. 2021

ACS Sustainable Chem. Eng.

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“…In the phytochemical profile of P. emarginatus leaves, the major identified components are sesquiterpenes hydrocarbons [11], di-C-glycosylflavones, C,O-glycosylflavones, luteolin-7-O-rutinoside, saponins [12], steroids, pheophytin, flavonoids and other sesquiterpenic compounds [13], and all of them have the potential to contribute to the synthesis of AgNPs. Additionally, considering that several environmental factors may influence the availability of metabolites in plants [14], evaluating the effects of some of these factors on the synthesis of AgNPs is relevant for modulating the final properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of silver nanoparticles using aqueous extracts of Pterodon emarginatus leaves collected in the summer and winter seasons

et al. 2019

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The aim of the present study was to evaluate the potential of silver nanoparticle synthesis using extracts from the leaves of Pterodon emarginatus (white sucupira) collected during the summer and winter seasons. Leaves were collected for the production of aqueous extracts, which were added to the aqueous solutions of silver nitrate leading to a final concentration of 1 mM. The reactions were incubated at 75 °C for 150 min and monitored every 30 min by absorption spectroscopy at 425 nm. The samples were complementarily characterized by dynamic light scattering, zeta potential, transmission electron microscopy, atomic force microscopy, MALDI-TOF mass spectrometry, Fourier transform infrared spectroscopy and X-ray diffraction analyses. Both extracts (summer and winter) exhibited a satisfactory reduction of silver ions, capable of inducing the formation of AgNPPe with considerable colloidal stability. The seasons of leaf collection interfered with the synthesis and yield of the AgNPPe, and also with their hydrodynamic diameters and zeta potentials, but the particles showed similar dry sizes (height and diameter), molecular profiles, and crystallinity patterns of the atoms. In sum, the results indicated that some AgNPPe parameters can be tunable by seasonal aspects of the plants and, therefore, such nanomaterials are propitious aiming future evaluation of their applications in several areas.

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“…The biosynthetic pathway of diterpenoids 1−4 was discussed as the reference [10] (Figure 3). The known compounds were assigned as cassipourol (2) [9], 4',5'-dehydrodiodictyonema (3) [11], acetyl incensole (4) [12], aromadendrane-4β,10β-diol (5) [13], (-)-globulol (6) [14], spathulenol (7) [15], 3β,6β,8α,10β-tetramethylwiddrane-2(3)-en-10α-ol (8) [16], and α-cadinol (9) [17] according to their NMR and MS data as well as the comparison with the reported values. This discovery provided new evidences not only for the chemical diversity of the genus Syzygium, but also for the chemotaxonomic makers of S. fluviatile.…”

Section: Resultsmentioning

confidence: 99%

Diterpenoids and Sesquiterpenoids from Syzygium fluviatile

Zhang¹,

Hu²,

Wang³

et al. 2020

Rec.Nat.Prod.

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A new monocyclic diterpenoid, cassipouryl formate, (1) together with three known diterpenoids (2−4) and five known sesquiterpenoids (5−9) were isolated from the twigs and leaves of Syzygium fluviatile. The new isolate was elucidated by various spectroscopic technologies. This was the first example of the chemical constituents from this species and the first report on the diterpenoids from genus Syzygium.

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Sesquiterpenes and other contituents from leaves ofPterodon pubescensBenth (Leguminosae)

Cited by 13 publications

References 0 publications

Insights into Shape-Based Silver Nanoparticles: A Weapon to Cope with Pathogenic Attacks

Insights into Shape-Based Silver Nanoparticles: A Weapon to Cope with Pathogenic Attacks

Synthesis of silver nanoparticles using aqueous extracts of Pterodon emarginatus leaves collected in the summer and winter seasons

Diterpenoids and Sesquiterpenoids from Syzygium fluviatile

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