Cetyl Research Articles

Nonylphenol and Cetyl Alcohol Polyethoxylates Disrupt Thyroid Hormone Receptor Signaling to Disrupt Metabolic Health.

Surfactants are molecules with both hydrophobic and hydrophilic structural groups that adsorb at the air-water or oil-water interface and serve to decrease the surface tension. Surfactants combine to form micelles that surround and break down or remove oils, making them ideal for detergents and cleaners. Two of the most important classes of nonionic surfactants are alkylphenol ethoxylates (APEOs) and alcohol ethoxylates (AEOs). APEOs and AEOs are high production-volume chemicals that are used for many industrial and residential purposes, including laundry detergents, hard-surface cleaners, paints, and pesticide adjuvants. Commensurate with better appreciation of the toxicity of APEOs and the base alkylphenols, use of AEOs has increased, and both sets of compounds are now ubiquitous environmental contaminants. We recently demonstrated that diverse APEOs and AEOs induce triglyceride accumulation and/or pre-adipocyte proliferation in vitro. Both sets of contaminants have also been demonstrated as obesogenic and metabolism disrupting in a developmental exposure zebrafish model. While these metabolic health effects are consistent across models and species, the mechanisms underlying these effects are less clear. This study sought to evaluate causal mechanisms through reporter gene assay assessments, relative binding affinity assays, co-exposure experiments, and use of both human cell and zebrafish models. We report that antagonism of thyroid hormone receptor signaling appears to mediate at least a portion of the polyethoxylate-induced metabolic health effects. These results suggest further evaluation is needed, given the ubiquitous environmental presence of these thyroid disrupting contaminants and reproducible effects in human cell models and vertebrate animals.

Relationship between friction reduction effect and solubility in base oil of organic friction modifiers

This study explored the relationship between the solubility of additives in base oils and their friction-reduction efficacy using cetyl alcohol as a model additive. Atomic force microscope friction tests demonstrated that the friction-reduction effect of cetyl alcohol varied significantly across the base oils. The solvation free energy was computed to evaluate the solubility of cetyl alcohol. A direct proportional relationship between friction-reduction and solvation free energy was observed, indicating additives with lower solubility have better friction-reduction performance. Neutron reflectometry experiments and molecular dynamics simulations revealed that lower solubility correlates with stronger adsorption. This study quantitatively clarified the relationship between solubility, adsorption, and friction reduction, providing insights into optimizing lubricant formulations and contributing to a deeper understanding of boundary lubrication mechanisms.

Discharging Performance Analysis of MXene Nano‐Enhanced Phase Change Material for Double and Triplex Tube Thermal Energy Storage

ABSTRACTThe present study numerically investigates the energy and exergy analysis of solidification of phase change materials within a double tube and triple tube latent heat storage unit using ANSYS Fluent. Double tube and triple tube thermal energy storage system's thermal characteristics are examined using MXene nano‐enhanced phase change material to determine system efficiency, discharged energy, heat transfer rate, exergy destruction, entropy generation number, exergetic efficiency, liquid fraction, solidification temperature contours. The result revealed that the double tube thermal energy storage with pure cetyl alcohol PCM has 14.76% lower discharge exergy than MXene‐based nano‐enhanced phase change material in pure solidification. In a triple tube thermal energy storage system, the solidification time for MXene‐based nano‐enhanced phase change material is impressively reduced by 54.76% compared to a double tube system using pure phase change material. At a Fourier number of 0.00672, MXene nano‐enhanced phase change material exhibits an 11.69% higher Stefan number (St) than cetyl alcohol phase change material in a double tube thermal energy storage system. At 2400 s, pure phase change material and MXene nano‐enhanced phase change material generated 3.14% and 4.88% less entropy than pure cetyl alcohol in the triple tube thermal energy storage system. During the pure solidification process in a double tube thermal energy storage system, pure cetyl alcohol experiences 7.60% higher exergy destruction compared to MXene nano‐enhanced phase change material at a solidification time of 2400 s. In a triple tube thermal energy storage system, the discharging temperature for pure cetyl alcohol phase change material is 2.92% lower than that in a double tube system. Double tube thermal energy storage with pure cetyl alcohol discharged more efficiently over 2400 s. The triple tube thermal energy storage system solidified cetyl alcohol PCM 20.83% faster than pure phase change material due to MXene nanoparticles' better thermophysical properties. Thus, MXene‐based nano‐enhanced cetyl alcohol phase change material solidifies faster per volume in a triple tube thermal energy storage latent heat system.

Formulation of Lotion with Ethanol Extract of Curcuma manga Val. as UV B Sunscreen and Activity Test using UV-Vis Spectrophotometry

Temu mango (Curcuma manga Val) is a rhizome plant native to Indonesia that contains curcuminoid and flavonoid antioxidant compounds. These compounds are thought to have activity as UV light protectors, especially UV B. This study uses a qualitative test of the compound content in temu mango followed by formulation and activity testing of water in oil (w/o) sunscreen lotion of temu mango in vitro. Optimization of w/o lotion formulation uses Design Expert® (DE) software version 9.0.4.1 with the Simplex Lattice Design method. The DE software obtained 13 runs of w/o lotion formula and continued with physical properties evaluation to determine the optimum formula. The optimum formula of lotion w/o predicted by DE software was tested for physical stability for four weeks, SPF test, percent pigmentation, and percent erythema using UV-Vis spectrophotometry. The results of the study show that temu mango extract was found to provide an SPF value at a concentration of 0.3 mg/mL with an SPF value of 16.62. The results of the optimum formula of lotion w/o were 7%glycerin, 7% cera alba, 5% cetyl alcohol with a value of stickiness of 0.70 ± 0.03 seconds, spreadability of 13.20 ± 0.83 cm2, and viscosity of 95.19 ± 3.06 dPa.s. Referring to the storage results, the optimum formula of w/o lotion from temu mango extract was stable during one month of storage. The w/o lotion in the optimum formula produced an SPF value of 15.06 ± 0.39, percent erythema of 10.95%, and percent pigmentation of 10.41%.

OPTIMIZATION OF VCO LOTION PREPARATIONS WITH VARIATIONS CETYL ALCOHOL AND CARRAGEEN CONCENTRATIONS USING SLD METHOD

Lotion is a cosmetic preparation of an emollient group that contains a large amount of water. This formulation possesses several properties, namely, as a source of moisture for the skin, providing an oily layer that makes the hands and body soft. VCO is utilized as a natural skin moisturizer to prevent tissue damage and protect the skin. VCO has a very high moisture content, which prevents skin dryness. A lotion was formulated with an emulsifying agent to stabilize the emulsion system. One of the constituent ingredients of the lotion is cetyl alcohol, which functions as an emulsifying agent. Cetyl alcohol can be substituted by carrageenan, which serves the same function with the added benefit of being a humectant. The aim of this study was to identify the formulation of VCO lotion and to investigate the effect of different concentrations of the emulsifying agents cetyl alcohol and carrageen on physical evaluation tests, namely organoleptic tests, homogeneity tests, spreading tests, pH tests, adhesion tests, emulsion type tests, and viscosity tests in lotion formulations. An experimental method was employed in this study. The research was carried out by making lotions from various ingredients containing the active ingredient VCO at a concentration of 7%, as well as varying concentrations of cetyl alcohol (range 2-5%) and carrageenan (range 1-3%) as an emulsifying agent and additional ingredients for the preparations whose optimization had been determined using the simplex lattice design method ...

Melting Behavior Effect of MXene Nanoenhanced Phase Change Material on Energy and Exergy Analysis of Double and Triplex Tube Latent Heat Thermal Energy Storage

Abstract The impacts of melting behavior on the thermal performance of triple tube thermal energy storage (TT-TES) and double tube thermal energy storage (DT-TES) systems employing cetyl alcohol and 3% v/v. MXene nano-enhanced PCM (NEPCM) are compared and numerically evaluated in this work. For both the DT-TES and TT-TES systems, the following were investigated in connection to melting time: system efficiency, discharged energy, heat transfer rate, exergy destruction, entropy generation number, exergetic efficiency, melting fraction, and melting temperature contours. In addition, the effect of Stefan, Rayleigh, and Nusselt numbers on Fourier numbers are compared for the DT-TES and TT-TES systems with MXene NEPCM. MXene-based nano-enhanced PCM melting in TT-TES displayed 6.53% more Stefan number than cetyl alcohol. DT-TES with pure cetyl alcohol phase change material (PCM) consumes 0.4% more energy at 7800 s than MXene NEPCM. Pure melting of MXene-based nano-enhanced PCM in a TT-TES had 4.16% higher storage exergy than cetyl alcohol. The entropy generation number of pure melting of MXene-based nano-enhanced PCM in TT-TES is 7.93% lower than that of cetyl alcohol. Pure melting of MXene-based nano-enhanced PCM in TT-TES reduces storage energy by 1.95% over cetyl alcohol. Pure cetyl alcohol has 76.99% optimal system efficiency at 5400 s melting time and MXene NEPCM 77.04% at 4800 s in DT-TES. The charging temperature for pure cetyl alcohol PCM in TT-TES is 0.7% lower than in DT-TES. Furthermore, pure melting of MXene-based nano-enhanced PCM in a TT-TES has 1.95% lower storage energy than cetyl alcohol. For a given volume of MXene-based nano-enhanced cetyl alcohol PCM, melting occurs more rapidly in a TT-TES system.

In English

Fullerenes are interesting objects of research in view of their promising use as a nano-sized additive to coatings, films, adsorbents, as well as active components in medicine, pharmacy, cosmetology. This paper considers the possibility of modifying commercial adsorbents - silica gel and cation-exchanger based on activated carbon with available and inexpensive linear carbon radicals. Behentrimonium chloride (C22H45(CH3)3N+Cl-) and cetyl alcohol (C16H33OН) were chosen as the latter. The obtained adsorbents were compared with a commercial sample of silica gel modified with a linear hydrocarbon radical –C18Н37. The adsorbents were described by the methods of IR spectroscopy, thermogravimetry, the main characteristics of the porous structure were determined by the method of low-temperature adsorption-desorption of nitrogen. Modification of adsorbents based on silica gel leads to a decrease in the specific surface area to 202.4 and 236.5 m2/g and the total pore volume to 0.32 and 0.39 cm3/g, which is almost 2 half source material. Increasing the fraction of micropores contributes to better separation rates of large molecules. Treatment of cation-exchanger based on activated carbon by cation modifier leads to a significant decrease in the specific surface area, as well as to an increase in the size of pores with the predominant formation of mesopores. It is shown that the modification of silica gel is carried out both through silanol and siloxane groups, in contrast to the commercial sample of silica gel. The approximate number of modifier groups on the surface of the original SiO2 matrix was estimated, which is one modifier group ~ per 11 SiO2 molecules. To study the behavior of adsorption of C60, C70 fullerenes and their mixtures on adsorbents, column experiments were carried out with changes in the geometrical parameters of the column and the initial concentrations of the solutions. The results showed that the modified silica gels are potential adsorbents for the separation of a mixture of fullerenes with a ratio of 65/25. Silica gel modified with cetyl alcohol C16H33OH showed the best separation efficiency. By the help of an adsorbent, it is possible to separate C60 - 90.52 % from a less concentrated solution and 87.26 % from a more concentrated solution. To increase the purity of the product, it is necessary to pass the solution through the sorbent 2–3 times. The competitive capability of the proposed modified silica gels, together with economic efficiency, ease of modification, and the possibility of fullerene separation characterize the proposed adsorbents as potential materials for practical application. Due to the significantly lower cost and simpler manufacturing methods, the proposed adsorbents can be used for separation at a large scale.

(132) MICONAZOLE VAGINAL CREAM AND ACQUIRED NEUROPROLIFERATIVE VESTIBULODYNIA

Abstract Introduction The vestibular epithelium is non-keratinized and is thus susceptible to injury from an allergic reaction. Topical pharmaceutical agents applied to the genitals for various medical indications, such as miconazole vaginal cream to treat vaginal yeast infections, may absorb through the non-keratinized vestibular epithelium. Active and inactive ingredients in miconazole vaginal cream include miconazole nitrate, benzoic acid, cetyl alcohol, isopropyl myristate, polysorbate 60, potassium hydroxide, propylene glycol, purified water and stearyl alcohol. Patients without vestibular pain previously have reported applying miconazole vaginal cream to their genitals and immediately experienced excruciating burning that resulted in persistent unrelenting severe pain throughout the vestibule, symptoms consistent with acquired neuroproliferative vestibulodynia (NPV). Objective To review reports of clinic patients who used miconazole vaginal cream prior to a diagnosis of acquired NPV to provide awareness of the management of this condition. Methods We performed a chart review of individuals with vulvas presenting to a single sexual medicine clinic between June 2019 and June 2023 to identify those who met the following inclusion criteria. They were clinically suspected to have acquired NPV after an allergic reaction following use of miconazole vaginal cream. They failed conservative treatments for provoked vestibular pain and underwent vestibulectomy. Their excised vestibular specimens revealed an excess of CD117 immunopositive stained cells (>8 per high-power field), consistent with mast cells, and PGP9.5 immunopositive stained area, consistent with nerves, histopathologically confirming the diagnosis of NPV. In addition, demographic data, prior diagnoses and treatments, results from validated questionnaires, pertinent physical exam findings and treatment outcomes were collected. Results A total of 7 individuals met inclusion criteria. Mean age at the time of exposure to miconazole vaginal cream was 23 (range 18-29) years. Mean age at presentation to our sexual medicine facility was 28 (range 22-33) years, thus a delay in diagnosis of miconazole vaginal cream-induced acquired NPV of 5 (range 1-12) years. 71% were previously diagnosed and unsuccessfully managed as hormonally-mediated vestibulodynia and 29% as interstitial cystitis. The mean pain domain score and overall score for the Female Sexual Function Index was 1.2/6 (range 0-3.2/6) and 11.7/36 (range 4.2-18.1/36), respectively. A total score of <26 is indicative of sexual dysfunction. The mean Female Sexual Distress Scale-Revised score was 32.2/52 (range 21-39/52), consistent with significant distress. Conclusions Our cohort of patients with miconazole vaginal cream-induced acquired NPV experienced several years of misdiagnoses, unsuccessful treatments, significant pain, and distress. It is hypothesized that miconazole vaginal cream induces NPV in genetically susceptible individuals in part because the vestibular epithelium is non-keratinized and therefore more easily absorbs the ingredients in the miconazole vaginal cream, which may result in an allergic response in the subepithelial region of the vestibule. This allergic reaction results in accumulation of mast cells in the subepithelial stroma that release nerve growth factor leading to neuroproliferation with subsequent allodynia and hyperalgesia. In individuals who develop yeast infections, use of systemic strategies and rather than topical medication is encouraged to avoid potential allergic reactions and resultant acquired NPV. Disclosure No.

FORMULATION AND SPF EVALUATION OF PHYSICAL SUNSCREEN CONTAINING TITANIUM DIOXIDE AND ZINC OXIDE

Sunscreen is a product that protects the skin from the undesirable effects of the sun, and the active ingredients of physical sunscreen are the group that is often prioritized for use. Research is needed to formulate and evaluate the SPF index of physical sunscreens containing titanium dioxide and zinc oxide with the desire to develop a safe sunscreen product that provides high sunscreen effectiveness and meets consumer tastes. The cream is prepared through surveys evaluating the emulsification capacity of emulsifying excipients, oil-phase excipients, and the ratio of titanium dioxide and zinc oxide. The optimal cream formulation was selected after assessing organoleptic sensation, physicochemical stability, pH, skin irritability, microbial limits, heavy metal limits, and SPF rating according to COLIPA guidelines. The results showed that the initial study successfully prepared a physical sunscreen containing 1% Span 80, 0.5% tween 80, 6% cetyl alcohol, 3% stearic acid, 9% titanium dioxide, and 1% zinc oxide. The resulting cream was smooth and homogeneous, had a pH of 6,did not cause irritation on rabbit skin, and had an SPF value of 26.1, creating a premise for the next studies.

Phytochemical screening and in vitro anti-inflammatory properties of Jatropha maheshwarii Subram. & Nayar – An endemic plant

The present study was aimed at examining the anti-inflammatory activity of the crude extracts obtained from an endemic plant, Jatropha maheshwarii through employing different assays. The ethanol extract of J. maheshwarii, at a concentration of 500 µg/ml, exhibited a membrane stabilizing effect (78.21 %) on human red blood cells. As regards proteinase inhibitory activity, the ethanol extract showed the higher activity (80.32 %) and the lower by aqueous extract (79.61 %) at a concentration of 500 µg/ml. The protein denaturation inhibition assay showed the higher activity for ethanol (78.26 %) and the lower by aqueous (75.73 %) extracts at a concentration of 500 µg/ml. The anti-inflammatory activity of the plant extracts can be reasoned to the bioactive principles of the plant. On this basis, the phytoconstituents were assayed using preliminary qualitative screening and Gas Chromatography-Mass Spectrometry analyses; phenols, alkaloids, flavonoids, sterols, tannins and cardiac glycosides were detected in the crude extracts. Twenty-two bioactive compounds were identified in the ethanol and aqueous extracts that includes13-docosenamide, (Z)- ((Z)-docos-13-enamide) (15.65 %), 4-propylbenzaldehyde (15.20 %), dibutyl phthalate (dibutyl benzene-1, 2-dicarboxylate) (15.10 %), behenic alcohol (Docosan-1-ol) (14.48 %), gamma-sitosterol (14.45 %), cetyl alcohol (Hexadecane-1-ol) (13.62 %), Tetradecyl trifluoroacetate (Tetradecyl 2, 2, 2-Trifluoroacetate) (11.49 %) and1-pentadecene (Pentadic-1-ene) (11.24 %).

FORMULASI SEDIAAN KRIM EKSTRAK ETANOL JAHE MERAH (Zingiber Officinalis var.Rubrum) SEBAGAI ANTIDIABETIC FOOT

Red ginger is used as a medicinal raw material because it contains 3% oleoresin which has anti-inflammatory, antioxidant, and anti-bleeding properties. In addition, red ginger contains volatile oil (2.58%-2.72%). Red ginger has long been used as medicine to treat a wide range of diseases, including preventing Staphylococcus aureus. Diabetic foot is caused by the pathogenic bacteria Staphylococcus aureus. The purpose of this study was to use experimental research to create a cream formula with ethanol extract of red ginger. Previous research shows that red ginger extract (Zingiber Officinalis Var. Rubrum) has an 80% inhibition zone of 13.11 mm against Staphylococcus aureus bacteria. It can be concluded that Formula 3 (propylene glycol 15%, TEA 3%, oleum rosae drops, cetyl alcohol 3%, and distilled water 50 ml) can be used to make red ginger ethanol extract cream as antidiabetic foot cream.

Testing The Activity Of Antimicrobial Cream Formulation Of Ethanol Extract Of Kedondong Leaves (Spondias Dulcis) Against Bacteria Propionibacterium Acnes And Staphylococcus Aureus

One of the causes of infection in acne is bacteria, such as Propionibacterium acnes and Staphylococcus aureus. Kedondong leaves have been used to treat diseases caused by bacteria. The purpose of this research is to: formulate a cream preparation containing ethanol extract of kedondong leaves and assess whether the cream preparation has antibacterial activity against P. acnes and S. aureus bacteria. The research method employed in this study is experimental, involving the following steps: preparation of ethanol extract of kedondong leaves using the maceration method with 96% ethanol solvent, formulation of the cream with a base consisting of cetyl alcohol, liquid paraffin, albumen vaseline, and distilled water. It is made in three concentrations of extract: F I with 10%, F II with 15%, and F III with 20%. Subsequently, the evaluation of the preparation was conducted, including physical stability evaluation, homogeneity, and antibacterial activity test against P. acnes and S. aureus bacteria using agar diffusion method with disc paper. The research results indicate that the cream has good physical stability and homogeneity for 30 days of storage at room temperature. The antibacterial cream preparation containing ethanol extract of kedondong leaves showed antibacterial activity against P. acnes and S. aureus bacteria. The average inhibition zones against P. acnes for formulations I, II, and III were 12.25 mm, 16.15 mm, and 24.15 mm respectively, while for S. aureus, the average inhibition zones were 10.75 mm, 15.45 mm, and 17.55 mm respectively, and the Positive Control (Clindamycin Antibiotic) had an inhibition zone of 30.35 mm. Based on the obtained results, it can be concluded that the cream preparation containing ethanol extract of kedondong leaves has inhibitory activity against P. acnes and S. aureus bacteria.

Effects of fatty acid esters on mechanical, thermal, microbial, and moisture barrier properties of carboxymethyl cellulose-based edible films

Fatty acid esters being biodegradable and environment friendly has been a sought-after class of molecule for various food grade applications. This work involves the incorporation of fatty acid esters namely cetyl-caprylate and cetyl-caprate in edible Carboxymethyl cellulose -based films. The esters were enzymatically synthesized by esterification of caprylic acid and capric acid respectively with cetyl alcohol at a molar ratio of 1:1, using Candida antarctica lipase B which was immobilized (10 % w/w) at 65 °C. Carboxymethyl cellulose films were prepared. To it, glycerol and by emulsification, cetyl-caprylate or cetyl-caprate esters were amalgamated. Film characterizations involved analysis of surface morphology, mechanical properties, and thermal properties. It was further characterized by X-Ray diffraction analysis, water vapor permeability, and moisture uptake. Barrier property carboxymethyl cellulose films showed significant improvement due to the incorporation of cetyl-caprylate or cetyl-caprate esters. However, when the film's melting point was measured, it was seen that glycerol influenced the thermal properties more prominently than cetyl-caprylate and cetyl-caprate esters. Thus, the addition of an optimized amount of glycerol and cetyl-caprylate or cetyl-caprate esters to the carboxymethyl cellulose films is required for improved mechanical strength and better thermal properties. Further, an antimicrobial well diffusion assay of both the esters established the antimicrobial property of the same, which thereby recommends the addition of the wax esters even more.

Lipase-Catalyzed Synthesis of Cetyl Palmitate in the Presence of n-Hexane and Ethyl Ether

Cetyl palmitate was produced by the esterification of palmitic acid with cetyl alcohol using n-hexane and ethyl ether as solvents and a commercial lipase as a catalyst. The effect of solvents to reagents mass ratio (0.5 : 1–3 : 1), percentage of n-hexane in the solvent mixture (0–100%), and reaction temperature (25–55°C) on the reaction rate were evaluated for a fixed amount of enzyme (1 wt% related to the total mass of substrates) in an equimolar mixture of palmitic acid and cetyl alcohol. Temperature and n-hexane percentage in the solvent had positive effects on the reaction rate. The total solvent-to-reagent mass ratio showed a negative effect on the reaction rate when a solvent mixture rich in ethyl ether was used. The higher the concentration of n-hexane, the lower the effect of the mass ratio of solvents to reagents on the reaction rate. Although the amount of ethyl ether in the solvent mixture had a negative effect on the reaction rate, it had a positive effect on the solubility of the system, that is, the more ethyl ether in the mixture, the lower the solvent to reagents mass ratio required to ensure a homogeneous mixture. A ping-pong bi-bi mechanism-based model was proposed to represent the system kinetics and was well fitted to the experimental data.

Fabrication, optimization, and evaluation of lyophilized lacidipine-loaded fatty-based nanovesicles as orally fast disintegrating sponge delivery system

Lacidipine (LCD) is a potent antihypertensive agent. Fatty-based nanovesicles (FNVs) were designed to improve LCD low solubility and bioavailability. LCD-FNVs were formulated according to different proportions of cetyl alcohol, cremophor®RH40, and oleic acid adopting Box-Behnken Design. The optimized LCD-FNVs, composed of cetyl alcohol 48.4 mg, cremophor®RH40 120 mg, and oleic acid 40 mg, showed minimum vesicle size (124.8 nm), maximum entrapment efficiency % (91.04 %) and zeta potential (-36.3 mV). The optimized FNVs were then used to formulate the lyophilized orally fast-disintegrating sponge (LY-OFDS). The LY-OFDS had a very short disintegration time (58 sec), remarkably high % drug release (100 % after 15 mins), and increased the drug transbuccal permeation by over 9.5-fold compared to the drug suspension. In-vivo evaluation of antihypertensive activity in rats showed that the LY-OFDS reduced blood pressure immediately after 5 min and reached normal blood pressure 4.5-fold faster than the marketed oral tablets. In the In-vivo pharmacokinetic study in rabbits, the LY-OFDS showed 4.7-fold higher bioavailability compared with the marketed oral tablet. In conclusion, the LY-OFDS loaded with LCD-FNVs is a safe, and non-invasive approach that can deliver LCD effectively to the blood circulation via the buccal mucosa giving superior immediate capabilities of lowering high blood pressure and increasing the drug bioavailability.

Evaluation of the Antifungal Activity of Fluconazole Nanovesicles Against Aspergillus fumigatus

Fluconazole is potent triazole drug used as effectively anti-fungal for treating a variety of local and systemic fungal infections. This drug is sparingly soluble in water. The objective of this research was to statistically optimize nanovesicular formulations contain fluconazole to improve its antifungal effect. The nanovesicular formulations were composed of Tween® 80, cetyl alcohol, and chitosan. The prepared nanovesicular formulations were investigated for their zeta potential, polydispersity index, particle size, and encapsulation efficiency. The nanovesicular that has been optimized formulation was consist of tween/cetyl alcohol ratio of 15:1 and 0.1% chitosan. Additionally, the optimized formulation increased significantly in fluconazole release ratio and extent in comparison to the suspension form of the drug. The find that fluconazole nanovesicles had a better effect and lower MIC when compared to the aqueous fluconazole suspension. Finally, the optimized nanovesicles can be considered a promising nanocarrier for delivery of fluconazole to increase its systemic antifungal efficacy.

Development and Evaluation of Polyherbal Cold Cream

Herbal cosmetics are products intended to enhance and beautify human appearances. In order to nourish and moisturize the skin, the current study set out to formulate and evaluate herbal cold creams that contained plant extracts, liquid paraffin as a lubricating agent, bees Cetyl alcohol, stearic acid and distilled water paraben as a antibacterial agent by using the water in oil method. The cold cream is prepared by using the neem oil and almond oil. After preparation of cream, cream was evaluated for different parameters like appearance, PH, viscosity, stability test, dye test, spread ability & Test for microbial growth. From evaluation study it was concluded that it is a very good attempt to formulate the herbal face pack containing naturally available ingredients like Gudhal, Gauva and Tea plant. It was also concluded that the prepared formulation was physio-chemically and microbiologically stable, and possessed characteristics of a standard cosmeceutical's formulation for skincare

Development of solid lipid microparticles (SLMs) containing asiatic acid for topical treatment of acne: Characterization, stability, in vitro and in vivo anti-acne assessment

Solid lipid microparticles (SLMs) represent a promising approach for drug delivery in anti-acne applications. In this study, asiatic acid-loaded SLMs (AASLMs) were prepared by melt emulsification method in conjunction with freeze-drying. Comprehensive evaluations comprised particle size, %entrapment efficiency (%EE), %labeled amount (%LA), surface morphology, stability, %release, %skin permeation, and anti-acne activity. The AASLMs exhibited an average particle size ranging from 7.46 to 38.86 µm, with %EE and %LA falling within the range of 31.56 to 100.00 and 90.43 to 95.38, respectively. The AASLMs demonstrated a spherical shape under scanning electron microscopy, and maintained stability over a 3-month period. Notably, formulations with 10 % and 15 % cetyl alcohol stabilized with poloxamer-188 (specifically F6 and F12) displayed a minimum inhibitory concentration (MIC) value of 75 mg/ml against Cutibacterium acnes. Furthermore, F12 exhibited a higher %release and %skin permeation compared to F6 over 24 h. In a single-blind clinical trial involving fifteen participants with mild-to-moderate acne, F12 showcased its potential not only in reducing porphyrin intensity and enhancing skin barriers but also in significantly improving skin hydration and brightness. However, further investigations with larger subject cohorts encompassing diverse age groups and genders are necessary to thoroughly establish the performance of the developed AASLMs.

(266) Miconazole Vaginal Cream-Induced Acquired Neuroproliferative Vestibulodynia

Abstract Introduction The endodermal vestibule lies between the ectodermal vulva and the mesodermal vagina. Unlike the vulvar skin, the vestibular epithelium is thin, non-keratinized, and its submucosal immune cells are more susceptible to activation. Topical pharmaceutical agents that are applied to the genitals for various medical indications are likely to contact the vestibular epithelium. For example, miconazole vaginal cream (MVC) is approved for treatment of vaginal yeast infections and the irritation associated with the yeast infection. Active and inactive ingredients in MVC include miconazole nitrate, benzoic acid, cetyl alcohol, isopropyl myristate, polysorbate 60, potassium hydroxide, propylene glycol, purified water and stearyl alcohol. We have observed cases where individuals, previously without vestibular pain, have applied MVC to their genitals and immediately experienced excruciating burning that resulted in persistent unrelenting severe pain throughout the vestibule, which is a symptom of acquired neuroproliferative vestibulodynia (ANPV). Objective Our objective is to report cases of patients who used MVC and were diagnosed with ANPV in order to provide awareness of this condition. Methods We performed a retrospective chart review of persons with vulvas presenting to a single sexual medicine clinic between 6/2019-6/2023 who were clinically suspected to have ANPV after experiencing an allergic reaction following use of MVC. Patients were included who failed conservative treatments for provoked vestibular pain, underwent vestibulectomy and were histopathlogically diagnosed with ANPV (>8 CD117 stained immunopositive cells per high-power field (HPF), consistent with mast cells, and excess PGP117 stained immunopositive cells, consistent with nerves). Demographic data, prior diagnoses and treatments, and results from validated questionnaires were collected. Results Our patient cohort included 7 individuals who met the criteria for MVC-induced ANPV. Mean age at time of MVC-induced vestibular pain was 23 (range 18-29) years. Mean age of presentation to our sexual medicine facility was 28 (range 22-33) years. Mean years of delay in diagnosis of MVC-induced ANPV was 5 (range 1-12) years. 71% and 29% were previously diagnosed and unsuccessfully managed as hormone-mediated vestibulodynia and interstitial cystitis, respectively. The mean pain score and overall score for the Female Sexual Function Index (FSFI) was 1.2/6 (range 0-3.2/6) and 11.7/36 (range 4.2-18.1/36), respectively. All total FSFI scores were <26 and indicative of sexual dysfunction. The mean Female Sexual Distress Scale-Revised score was 32.2/52 (21-39/52), consistent with significant distress. Conclusions Our cohort of patients with MVC-induced ANPV experienced several years of misdiagnoses, unsuccessful treatments, and significant pain and distress. It is hypothesized that MVC induces ANPV in genetically susceptible individuals possibly due to activation of the innate submucosal immune cells from an allergic reaction to active or inactive ingredients in the MVC. This allergic reaction results in accumulation of mast cells in the subepithelial stroma that release cytokines and growth factors leading to proliferation of nerves with subsequent symptoms of allodynia and hyperalgesia. Avoidance of topical medications and use of systemic antifungal strategies in individuals with yeast infections may be advisable. Disclosure No.

EFEKTIFITAS SEDIAAN REPELLENT STICK EKSTRAK BUAH WALAY (Meistera chinensis) TERHADAP NYAMUK Aedes sp

Repellent is a preparation used to avoid bites from insects, including the Aedes sp mosquito. Repellent sticks are applied without direct contact with the hands, unevaporate easily and can last relatively longer on the skin. One of the plants from Southeast Sulawesi, namely Walay fruit (Meistera chinensis), contains triterpenoid and flavonoid compounds which have the potential as an active substance in anti-mosquito repellant. This study aims to formulate repellent sticks of Meistera chinensis fruit extract which effective against Aedes sp. Three formula consists of 1%, 3% and 5% extracts with additional ingredients carnouba wax, cetyl alcohol, Vaseline alba, SLS, propylene glycol, span 80, tween 80, Na benzoate, BHT, eucalyptus and aquadest. The results of the physical evaluation showed the repellent had brown in color, an eucalyptus aroma, solid, homogeneous, pH of 6.8-6.9, melting temperature 60°C-62°C, applied 1x, and was not irritating. After 14 days of storage at room temperature the repellent was stable. The repellent effectiveness against Aedes sp showed that formula C with 5% extract had the highest protection power, namely 90%. The results of the ANOVA statistical analysis obtained a value of sig.0.009 (p<0.05) which shows that there are significant differences in effectiveness between treatment groups.