Essential oils of <i>Hypericum olympicum</i> L. and <i>Hypericum perforatum</i> L.

Gudžić, Branislav; Đorđević, Stefan; Palić, Radosav; Stojanović, Gordana

doi:10.1002/ffj.978

Cited by 54 publications

(9 citation statements)

References 12 publications

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“…The ability to control self-assembly is of overwhelming importance in the fabrication of synthetic colloids tailored for targeted applications, 14,15 such as the delivery of drugs in the human body [16][17][18] or the addition of bioactive substances to foods. 19,20 Recently, we have investigated by Monte Carlo simulation the low-temperature structure of a dilute mixture of dimers (made up of two spherical monomers of unequal size) and spheres. [21][22][23] In these studies, an additional attraction takes place between spheres and the small monomers.…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional mixture of amphiphilic dimers and spheres: Self-assembly behaviour

Prestipino

Munaò

Costa

et al. 2017

The Journal of Chemical Physics

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The emergence of supramolecular aggregates from simple microscopic interaction rules is a fascinating feature of complex fluids which, besides its fundamental interest, has potential applications in many areas, from biological self-assembly to smart material design. We here investigate by Monte Carlo simulation the equilibrium structure of a two-dimensional mixture of asymmetric dimers and spheres (disks). Dimers and disks are hard particles, with an additional short-range attraction between a disk and the smaller monomer of a dimer. The model parameters and thermodynamic conditions probed are typical of colloidal fluid mixtures. In spite of the minimalistic character of the interaction, we observe-upon varying the relative concentration and size of the two colloidal species-a rich inventory of mesoscale structures at low temperature, such as clusters, lamellæ (i.e., polymer-like chains), and gel-like networks. For colloidal species of similar size and near equimolar concentrations, a dilute fluid of clusters gives way to floating lamellæ upon cooling; at higher densities, the lamellæ percolate through the simulation box, giving rise to an extended network. A crystal-vapour phase-separation may occur for a mixture of dimers and much larger disks. Finally, when the fluid is brought in contact with a planar wall, further structures are obtained at the interface, from layers to branched patterns, depending on the nature of wall-particle interactions.

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Section: Introductionmentioning

confidence: 99%

Two-dimensional mixture of amphiphilic dimers and spheres: Self-assembly behaviour

Prestipino

Munaò

Costa

et al. 2017

The Journal of Chemical Physics

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“…In contrast, the fragrance microcapsules and PANI fragrance microcapsules weight loss involve two stages. The first stage is in the range of 25–233°C mainly because of the loss of the fragrance, and the second stage ranging from 376°C to 479°C is caused by the decomposition of wall material 21,22 . As can be seen from the DTG curves, compared with essential oil, the maximum weight loss rate temperature for the fragrance capsules is increased from 127°C to 169°C, indicating that the wall material plays an important role in protecting essential oil from losing at high temperature conditions.…”

Section: Resultsmentioning

confidence: 94%

Preparation and properties of photothermal responsive fragrance microcapsules

Han,

Shi,

Chen

et al. 2023

J of Applied Polymer Sci

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Stimulus‐responsive fragrance microcapsules gradually bring about the attention of the people by using the external environment as the “on/off” switch to achieve intelligent release of aromatic compounds. In this paper, the photothermal responsive fragrance microcapsules are successfully synthesized by in situ polymerization using methyl methacrylate (MMA) and trimethylolpropane triacrylate (TMPTA) as wall materials simultaneously doped with polyaniline (PANI). The results indicate that the synthesized fragrance microcapsules have good spherical shape and thermal stability, which can prevent the leakage of essential oil. Furthermore, the addition of PANI effectively promotes the release of fragrance under the stimulation of light source, achieving photothermal responsive release. Meanwhile, the prepared fragrance microcapsules are applied to fabricate fragrance silk fabrics through soaking‐rolling‐baking procedure. The obtained aromatic fabrics show interesting light stimulation release behavior and good washing fastness.

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“…There are a few reports in literature on the volatile compounds of HOE. Gudžić et al (2001) identified 49 compounds and Pavlović et al (2006) found 41 compounds including alkanes, monoterpenes, sesquiterpenes and oxygenated compounds. Moreover, Stojanovic et al (2003) has determined 14 alkanes and 11 fatty acids in H. olympicum.…”

Section: Discussionmentioning

confidence: 99%

Toxicity assessment of Hypericum olympicum subsp. olympicum L. on human lymphocytes and breast cancer cell lines

Balikci¹,

Sarimahmut²,

Arı³

et al. 2020

JAB

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There is a limited number of studies about the constituents of Hypericum olympicum subsp. olympicum and its genotoxic and cytotoxic potency. We examined the possible antigenotoxic/genotoxic properties of methanolic extract of H. olympicum subsp. olympicum (HOE) on human lymphocytes by employing sister chromatid exchange, micronucleus and comet assay and analyzed its chemical composition by GCxGC-TOF/MS. The anti-growth activity against MCF-7 and MDA-MB-231 cell lines was assessed by using the ATP viability assay. Cell death mode was investigated with fluorescence staining and ELISA assays. The major components of the flower and trunk were determined as eicosane, heptacosane, 2-propen-1-ol, hexahydrofarnesyl acetone and α-muurolene. HOE caused significant DNA damage at selected doses (250-750 µg/ml) while chromosomal damage was observed at higher concentrations (500 and 750 µg/ml). HOE demonstrated anti-growth activity in a dose-dependent manner between 3.13-100 µg/ml. Pyknotic nuclei were observed at 100 µg/ml concentration of HOE in both cell lines. In conclusion, HOE demonstrated cytotoxic effects in a cell type-dependent manner, however its genotoxic effects were observed at relatively higher doses.

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Essential oils of Hypericum olympicum L. and Hypericum perforatum L.

Cited by 54 publications

References 12 publications

Two-dimensional mixture of amphiphilic dimers and spheres: Self-assembly behaviour

Two-dimensional mixture of amphiphilic dimers and spheres: Self-assembly behaviour

Preparation and properties of photothermal responsive fragrance microcapsules

Toxicity assessment of Hypericum olympicum subsp. olympicum L. on human lymphocytes and breast cancer cell lines

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