Prediction of a nail polish colour applied on a nail

2017 ◽  
Vol 40 (1) ◽  
pp. 75-80
Author(s):  
C. Monpeurt ◽  
E. Cinotti ◽  
J. Razafindrakoto ◽  
P. Rubegni ◽  
M. Fimiani ◽  
...  
Keyword(s):  
Nail Polish

Determination of Selected Phthalates in Some Commercial Cosmetic Products by HPLC-UV

2020 ◽  
Vol 23 (10) ◽  
pp. 1010-1022
Author(s):  
Emrah Dural
Keyword(s):  
High Performance ◽  
Phthalate Esters ◽  
High Sensitivity ◽  
Hplc Method ◽  
Cosmetic Products ◽  
Limit Of Quantification ◽  
Nail Polish ◽  
Accuracy And Precision ◽  
Butyl Phthalate

Aim and scope: Due to the serious toxicological risks and their widespread use, quantitative determination of phthalates in cosmetic products have importance for public health. The aim of this study was to develop a validated simple, rapid and reliable high-performance liquid chromatography (HPLC) method for the determination of phthalates which are; dimethyl phthalate (DMP), diethyl phthalate (DEP), benzyl butyl phthalate (BBP), di-n-butyl phthalate (DBP), di(2- ethylhexyl) phthalate (DEHP), in cosmetic products and to investigate these phthalate (PHT) levels in 48 cosmetic products marketing in Sivas, Turkey. Materials and Methods: Separation was achieved by a reverse-phase ACE-5 C18 column (4.6 x 250 mm, 5.0 μm). As the mobile phase, 5 mM KH2PO4 and acetonitrile were used gradiently at 1.5 ml min-1. All PHT esters were detected at 230 nm and the run time was taking 21 minutes. Results: This method showed the high sensitivity value the limit of quantification (LOQ) values for which are below 0.64 μg mL-1 of all phthalates. Method linearity was ≥0.999 (r2). Accuracy and precision values of all phthalates were calculated between (-6.5) and 6.6 (RE%) and ≤6.2 (RSD%), respectively. Average recovery was between 94.8% and 99.6%. Forty-eight samples used for both babies and adults were successfully analyzed by the developed method. Results have shown that, DMP (340.7 μg mL-1 ±323.7), DEP (1852.1 μg mL-1 ± 2192.0), and DBP (691.3 μg mL-1 ± 1378.5) were used highly in nail polish, fragrance and cream products, respectively. Conclusion: Phthalate esters, which are mostly detected in the content of fragrance, cream and nail polish products and our research in general, are DEP (1852.1 μg mL-1 ± 2192.0), DBP (691.3 μg mL-1 ± 1378.5) and DMP (340.7 μg mL-1 ±323.7), respectively. Phthalates were found in the content of all 48 cosmetic products examined, and the most detected phthalates in general average were DEP (581.7 μg mL-1 + 1405.2) with a rate of 79.2%. The unexpectedly high phthalate content in the examined cosmetic products revealed a great risk of these products on human health. The developed method is a simple, sensitive, reliable and economical alternative for the determination of phthalates in the content of cosmetic products, it can be used to identify phthalate esters in different products after some modifications.

Rheological Properties Influence Tackiness, Application and Performance of Nail Polish/Lacquer Formulations

2021 ◽  
pp. 109-150
Author(s):  
Leidy Nallely Jimenez ◽  
Carina D. V. Martínez Narváez ◽  
Chenxian Xu ◽  
Samantha Bacchi ◽  
Vivek Sharma
Keyword(s):  
Rheological Properties ◽  
Nail Polish ◽  
And Performance

scholarly journals Hyperspectral Imaging for Bloodstain Identification

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3045
Author(s):  
Maheen Zulfiqar ◽  
Muhammad Ahmad ◽  
Ahmed Sohaib ◽  
Manuel Mazzara ◽  
Salvatore Distefano
Keyword(s):  
Hyperspectral Imaging ◽  
Dna Analysis ◽  
Forensic Sciences ◽  
Blood Protein ◽  
Chemical Methods ◽  
Acrylic Paint ◽  
Spectral Bands ◽  
Nail Polish ◽  
Spatial Dimensions ◽  
Non Destructive

Blood is key evidence to reconstruct crime scenes in forensic sciences. Blood identification can help to confirm a suspect, and for that reason, several chemical methods are used to reconstruct the crime scene however, these methods can affect subsequent DNA analysis. Therefore, this study presents a non-destructive method for bloodstain identification using Hyperspectral Imaging (HSI, 397–1000 nm range). The proposed method is based on the visualization of heme-components bands in the 500–700 nm spectral range. For experimental and validation purposes, a total of 225 blood (different donors) and non-blood (protein-based ketchup, rust acrylic paint, red acrylic paint, brown acrylic paint, red nail polish, rust nail polish, fake blood, and red ink) samples (HSI cubes, each cube is of size 1000 × 512 × 224, in which 1000 × 512 are the spatial dimensions and 224 spectral bands) were deposited on three substrates (white cotton fabric, white tile, and PVC wall sheet). The samples are imaged for up to three days to include aging. Savitzky Golay filtering has been used to highlight the subtle bands of all samples, particularly the aged ones. Based on the derivative spectrum, important spectral bands were selected to train five different classifiers (SVM, ANN, KNN, Random Forest, and Decision Tree). The comparative analysis reveals that the proposed method outperformed several state-of-the-art methods.

Nail polish used at nail salons is not a source of fungi that causes onychomycosis

2021 ◽  
Author(s):  
Isabela Ropelli Huck ◽  
Fernanda Lucia Vitorino de Mattos Silva ◽  
Carolinne Beatriz Alves ◽  
Letícia Henn Chicol ◽  
Camila Rayana Vieira Magalhaes ◽  
...  
Keyword(s):  
Nail Polish ◽  
Nail Salons

MOTHER FIGHTS TO RUIN THE TASTE OF POISON

PEDIATRICS ◽  
1989 ◽  
Vol 84 (4) ◽  
pp. A42-A42
Author(s):  
J. F. L.
Keyword(s):  
Public Service ◽  
Executive Director ◽  
The United States ◽  
Public Television ◽  
Small Children ◽  
Nail Polish ◽  
Household Products ◽  
Promising Area ◽  
Poison Prevention ◽  
Flavoring Agent

On March 6, a mother in Oregon watched a public television report about British companies that were discouraging children from eating poisonous household products by lacing them with Bitrex, the world's bitterest flavoring agent. The woman, Lynn Tylczak, who has two small children and lives in Albany, 60 miles south of Portland, began a letter-writing campaign that is focusing attention on poison prevention. She may also be speeding Bitrex's journey to supermarket shelves in products like detergents, nail-polish removers, rodenticides and antifreeze. "Mrs. Tylczak has already achieved a certain victory by bringing national attention to this issue," said Linda Golodner, executive director of the National Consumers League in Washington. "She has shown that a single consumer can make a difference." Now she is encouraging manufacturers to add Bitrex to their products by sharing with them letters of support that are sent to her group, the Poison-Proff Project (4384 S.E. Ermine Street, Albany, Ore. 97321). `A Very Promising Area' Consumer and safety organizations in the United States are beginning to notice. On May 5, the National Safety Council, a 13,000-member public-service organization, called on manufacturers to use Bitrex in all appropriate household products. "Bitrex is the most bitter substance known to man," according to the Merck Index. In 1982, some British companies began using Bitrex in household products to deter inquisitive children, but the practice did not grow until two years ago, when the Royal Society for the Prevention of Accidents endorsed its use.

scholarly journals Altered Mental Status and Cyanosis in a Pediatric Patient with Methemoglobinemia

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Phillip M. Grenz ◽  
Robert N. Ray Jr. ◽  
Olivia A. Hardy ◽  
Andrew L. Koons ◽  
Kenneth D. Katz ◽  
...  
Keyword(s):  
Mental Status ◽  
Clinical Manifestations ◽  
Altered Mental Status ◽  
Pediatric Emergency ◽  
Abrupt Onset ◽  
Altered Level ◽  
Sustained Improvement ◽  
Oxygen Dissociation ◽  
Nail Polish ◽  
Level Of Consciousness

Methemoglobinemia results from increased amounts of oxidized hemoglobin in the blood with an ensuing change in oxygen dissociation curve and lack of oxygen delivery to tissue. A previously well, male toddler was brought to the Pediatric Emergency Department (PED) by Emergency Medical Services (EMS) with abrupt onset of altered mental status and cyanosis after a suspected ingestion of “Rush” nail polish remover. He was quickly diagnosed with methemoglobinemia by both clinical presentation and chocolate-colored blood appearance. He emergently received intravenous (IV) methylene blue (MB) with immediate and sustained improvement requiring no further doses. Though inhalation of nitrites and subsequent methemoglobinemia is frequently reported in adolescents, we were unable to find any cases in the literature detailing ingestion of this product and the resulting clinical manifestations. Our objective with this report is to describe a rare case of a toddler with an accidental ingestion of “Rush” nail polish remover, a nitrite compound. Our patient presented to the PED with abrupt onset of altered level of consciousness, hypotension, and cyanosis resulting from acquired methemoglobinemia. This case report demonstrates the importance of emergency clinicians being able to make clinical judgements and decisions based on the history and physical exam when methemoglobinemia is suspected.

Microleakage Evaluation of Composite Restorations Following Papain-Based Chemo-Mechanical Caries Removal in Primary Teeth

2017 ◽  
Vol 41 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Marwa Abdel Hafez ◽  
Mona Elkateb ◽  
Sonia El Shabrawy ◽  
Amel Mahmoud ◽  
Omar El Meligy
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Microscopy Study ◽  
Hybrid Layer ◽  
Composite Restorations ◽  
Nail Polish ◽  
Significant Difference ◽  
Drilling Method ◽  
Caries Removal ◽  
Scanning Electron

Aim: To evaluate the microleakage of composite restorations following Papain-based chemo-mechanical caries removal compared to the conventional drilling method. The characteristic of the hybrid layer was also studied using scanning electron microscopy. Study design: The sample included thirty freshly extracted and exfoliated primary molars with open proximal carious dentin lesions. Teeth were divided into two equal groups, according to method of caries removal. Following caries removal, cavity preparations were restored with composite resin. After thermocycling, teeth were sealed apically and coated with nail polish except the surface of restorations and the surrounding 1mm. Teeth were immersed in basic fuschin dye solution, then they were sectioned mesiodistally. The extent of dye penetration was detected using a light stereomicroscope. After microleakage test, the resin/dentin interface was examined using scanning electron microscopy. Results: There was no significant difference in the degree of leakage between both groups. In the Papacarie group, longer and numerous resin tags were observed with statistically significant thicker hybrid layer than those following the drilling method. However, there was no significant difference between the diameters of resin tags of both groups. Conclusions: Papacarie does not adversely affect the microleakage of composite restorations and provides a suitable surface for bonding.

The science of nail polish, nail polish remover, and nail moisturizers

2019 ◽  
pp. 497-501
Author(s):  
Somodyuti Chandra ◽  
Anupam Das
Keyword(s):  
Nail Polish

scholarly journals Proximal retention grooves may increase early fracture strength of ART restorations

2019 ◽  
Vol 22 (1) ◽  
pp. Process
Author(s):  
Érica Fernandes ◽  
Maria Cristina Freitas ◽  
Paula Oltramani-Navarro ◽  
Ricardo Navarro ◽  
Rafael Menezes-Silva ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Glass Ionomer Cement ◽  
Class Ii ◽  
Test Machine ◽  
Retention Data ◽  
Glass Ionomer ◽  
Solution Ph ◽  
Nail Polish ◽  
Edta Solution ◽  
Ionomer Cement

Objective: To evaluate the fracture resistance (RF) of Class II Glass-ionomer Cement (GIC) ART restorations with and without proximal retentions. Material and Methods: 20 freshly extracted human molars were used. Forty (40) standard Mesial-Occlusal (MO) and Distal-Occlusal (DO) preparations (20 for each material) were performed with a 245 bur. The unprepared surfaces of the teeth were protected with nail polish and the specimens submerged in 0.5Mol EDTA solution, pH 7.4 for 8h under stirring. The preparations were finished with dentine spoons and 50% received proximal retention with # 3 excavators. 20 cavities were restored with Chemfil Rock (10 with retention and 10 without retention) and 20 cavities were restored with Equia Fil (10 with retention and 10 with no retention) and were stored in an oven at 37ºC and 100% relative humidity for 24h and submitted to axial compression loading in Test Machine - EMIC at a rate of 0.5 mm / minute, until restoration fracture occurred. The values were analyzed by two-way ANOVA (p<0.05). Results: ChemFil Rock presented 300.84 (69.20) (without retention) and 361.70 (81.08) (with retention) and Equia Fil showed 314.60 (69.97) (without retention) and 366.67 (103.38) (with retention). Data obtained with retention were statistically superior to those obtained with non-retained ART restorations (p=0.014). No statistical differences were detected between materials (p=0.761). Conclusion: Retentive grooves improved fracture resistance of Class II GIC ART restorations. KeywordsDental materials; ART; Glass ionomer cements.

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