Read by QxMD icon Read

Chemical peelings

Kachiu C Lee, Carlos G Wambier, Seaver L Soon, J Barton Sterling, Marina Landau, Peter Rullan, Harold J Brody
Chemical peeling, or chemexfoliation, has been used for centuries to improve signs of ultraviolet light-induced sun damage. Over the last 30 years, the science behind chemical peeling has evolved, increasing our understanding of the role of peeling ingredients and treatment indications. The depth of peels is directly related to improved results and to the number of complications that can occur. Key principles for superficial and medium depth peeling are discussed, as well as appropriate indications for these treatments...
December 11, 2018: Journal of the American Academy of Dermatology
Carlos G Wambier, Kachiu C Lee, Seaver L Soon, J Barton Sterling, Peter P Rullan, Marina Landau, Harold J Brody
Once considered the gold standard for deep facial resurfacing, the classical Baker-Gordon phenol-croton oil peel has largely been replaced by formulas with lower concentrations of phenol and croton oil. The improved safety profile of deep peels has ushered in a new era in chemical peeling. Wrinkles can be improved and skin tightened with more subtle and natural results. No longer does a deep peel denote "alabaster white" facial depigmentation with complete effacement of wrinkles. The research of Dr...
December 11, 2018: Journal of the American Academy of Dermatology
Sidharth Sonthalia, Ramanjit Singh
No abstract text is available yet for this article.
July 2018: Journal of Cutaneous and Aesthetic Surgery
Kachiu C Lee, J Barton Sterling, Carlos G Wambier, Seaver L Soon, Marina Landau, Peter Rullan, Harold J Brody
No abstract text is available yet for this article.
December 5, 2018: Journal of the American Academy of Dermatology
Matthias Aust, Hanno Pototschnig, Sarina Jamchi, Kay-Hendrik Busch
Background Treatment of the lower eyelid region to rejuvenate the skin or treat actinic elastosis often proves difficult. Established treatment options, such as hyaluronic acid injections, botulinum toxin injections, microneedling, skin resurfacing (microdermabrasion, chemical peel (exfoliation), laser treatment), as well as blepharoplasties and autologous fat transfers, can be associated with significant risks and increased patient burden. Furthermore, they may not be effective for treating the signs of skin aging or actinic elastosis, including dark rings under the eyes, a lack of volume and cutis laxa...
July 18, 2018: Curēus
Asma A Al-Huqail, Gehan A Elgaaly, Mohamed M Ibrahim
Punica species are medicinally important plants belonging to the family Lythraceae. The pomegranate is widely reported to exhibit antiviral, antioxidant, anticancer, anti-proliferative activities. In the present study the ethanolic extract of the peel seeds of two species of Punica ( Punica granatum and Punica protopunica ) were subjected to GC-MS analysis. Twenty-one and 14 compounds were identified in P. granatum and P. protopunica peel seeds, respectively. The main chemical constituents in P. granatum- peel seeds were propanoic acid, benzenedicarboxylic acid, methoxypropionic acid and methyl amine...
November 2018: Saudi Journal of Biological Sciences
Achlesh Daverey, Nisha Tiwari, Kasturi Dutta
In this study, aqueous extracts of Musa paradisica (banana) peels and Dolichos lablab (Indian beans) seeds were prepared and tested as natural coagulants for turbidity removal from simulated turbid water. Effects of extraction time (15, 30, and 45 min), dosage (0.2 to 1.0 mL/L), and water pH on turbidity removals by the natural coagulants were evaluated. In both cases, the extraction time of 45 min for the preparation of aqueous extract and dosage of 0.6 mL/L gave the best results in terms of turbidity removal...
November 29, 2018: Environmental Science and Pollution Research International
Ryan J Protzko, Luke N Latimer, Ze Martinho, Elise de Reus, Tanja Seibert, J Philipp Benz, John E Dueber
Pectin-rich biomasses, such as citrus peel and sugar beet pulp, hold promise as inexpensive feedstocks for microbial fermentations as enzymatic hydrolysis of their component polysaccharides can be accomplished inexpensively to yield high concentrations of fermentable sugars and D-galacturonic acid (D-galUA). In this study, we tackle a number of challenges associated with engineering a microbial strain to convert pectin-rich hydrolysates into commodity and specialty chemicals. First, we engineer D-galUA utilization into yeast, Saccharomyces cerevisiae...
November 29, 2018: Nature Communications
Sung Hwa Bae, Hyo Jae Jo, Injoon Son, Ho-Sang Sohn, Kyung Tae Kim
In this study, a method for electroless Ni-P plating with excellent adhesion via chemical wet etching to fabricate Bi-Te thermoelectric modules is proposed. The electroless Ni-P plating formed through the proposed method showed excellent adherence without peeling, even under heat treatment of 200 °C for 24 h. Wet etching and electroless Ni-P plating was performed on a Bi-Te thermoelectric module, which showed the excellent bond strength of approximately 10 MPa. The surface roughness of the Bi-Te thermoelectric element was increased significantly by the wet etching process, which secured the adherence of the Ni-P plating by anchoring to this induced surface roughness...
March 1, 2019: Journal of Nanoscience and Nanotechnology
Ajikumaran Nair S, Rajani Kurup Sr, Akhila S Nair, Sabulal Baby
BACKGROUND: Citrus comprises the largest fruit sector worldwide, and its fruit peels are the dominant 'residue' of the industry. Though not profitable, Citrus peels are industrially used for making some byproducts (cattle feed, molasses, ethanol, fiber) and for the extraction of bioactives (flavonoids, essential oils, d-limonene). Still huge amounts of peels are wasted by Citrus industries, juice and other vending sectors. PURPOSE: The biological potentials of these unutilized or 'wasted' Citrus peels are least exploited...
November 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Itay Wiser, Averbuch Sagie Roni, Ella Ziv, Mony Friedman, Shay Efraty, Lior Heller, Marina Landau, Tali Friedman
Background: Phenol chemical peeling (PCP) treatment is associated with prolonged recovery and sustained adverse events. Hyperbaric oxygen therapy (HBOT) is known to accelerate wound healing. The purpose of the current study was to evaluate the effect of HBOT on PCP recovery period and adverse events. Methods: This is a pilot randomized controlled clinical study. Women following PCP underwent 5 consecutive daily HBOT sessions, compared with PCP alone. Pain, pruritus, erythema, crusting, scaling, and edema were daily evaluated up to 28 days following PCP...
November 2018: Plastic Surgery
Somasundaram Anbu Anjugam Vandarkuzhali, Sampathkumar Natarajan, Shanmugapriya Jeyabalan, Gandhi Sivaraman, Subramanian Singaravadivel, Shanmugam Muthusubramanian, Balasubramanian Viswanathan
Herein, the fluorescent carbon dots (CDs) with blue emission were prepared by hydrothermal treatment using pineapple peel as a source of carbon. The as-prepared CDs exhibited turn-Off fluorescence behavior toward Hg2+ and subsequent turn-On behavior for l-cysteine along with enhanced biocompatibility and negligible cytotoxicity for cell imaging. The practical applicability of carbon dots was used for the quantification of Hg2+ in water. On the basis of the spectral characteristic changes, we have designed individual elementary logic operations such as NOT and IMP gates, by utilizing CD as probe and Hg2+ and l-Cys as chemical inputs...
October 31, 2018: ACS Omega
Nathalia O S Garcia, Caio P Fernandes, Edemilson C da Conceição
Jaboticaba (Myrciaria cauliflora) is considered a "super fruit" due to its remarkable phenolic content and antioxidant capacity. Despite the great potential of its peels, to our knowledge the investigation of novel nanostructured systems with this natural raw material, still considered an industrial residue, is scarce. The present study aimed to obtain nanodispersions with its peel's extract through a low energy method. Antioxidant assays were performed, showing positive results for DPPH (IC50  = 0...
March 15, 2019: Food Chemistry
Jing Yan, Alexis Moreau, Sepideh Khodaparast, Antonio Perazzo, Jie Feng, Chenyi Fei, Sheng Mao, Sampriti Mukherjee, Andrej Košmrlj, Ned S Wingreen, Bonnie L Bassler, Howard A Stone
Biofilms, surface-attached communities of bacterial cells, are a concern in health and in industrial operations because of persistent infections, clogging of flows, and surface fouling. Extracellular matrices provide mechanical protection to biofilm-dwelling cells as well as protection from chemical insults, including antibiotics. Understanding how biofilm material properties arise from constituent matrix components and how these properties change in different environments is crucial for designing biofilm removal strategies...
October 8, 2018: Advanced Materials
Maria Eliza de Castro Moreira, Fernanda de Oliveira Araújo, Andressa Rodrigues de Sousa, Renata Celi Lopes Toledo, Laércio Dos Anjos Benjamin, Marcia Paranho Veloso, Kassius de Souza Reis, Marcelo Henrique Dos Santos, Hercia Stampini Duarte Martino
The aim was to evaluate the effect of the ethanol extract of bacupari peel (EEB) on biometric measurements, hepatic lipogenesis and progression of non-alcoholic fatty liver disease (NAFLD) in obese Wistar rats. Chemical analysis of the bacupari peel extract identified 7-epiclusianone as the major constituent (140.02 mg/g) followed by morelloflavone (35.86 mg/g). Animals treated with high fat diet plus EEB (BHFD) reduced body mass index (BMI), liver weight and hepatosomatic index in relation to the obese control...
December 2018: Food Research International
Binrui Wu, Chaoyi Peng, Ying Hu, Suli Xing, Dazhi Jiang, Jinshui Yang, Jiajie Lyu, Yonglyu He
Bioinspired superhydrophobic surfaces are mainly attributed to nano/micro textures and low surface energy materials, and have exciting potential for use in fields such as self-cleaning, water-proofing, anti-icing, anti-fouling, and so forth. However, the natural weakness of such delicate hierarchical surface structures pose great challenges to using artificial superhydrophobic surfaces under harsh mechanical conditions. Completely transforming multi-layered composite materials with good structural ability into superhydrophobic surfaces would greatly extend their durability under continuous mechanical abrasion...
November 1, 2018: Nanoscale
Flavia Myrna, Dinaldo C Oliveira, Gloria Vinhas, Ivo Silva, Magno Teixeira, Andre Galembeck
Background: Catheters are extensively used for coronary angiographies. These devices are long, thin, and flexible tubes of variable diameters that are made of the following polymer compounds: polyamide, polyurethane and Teflon. The objectives of this study are to identify changes that occur in the polymeric structure of the catheters, including an analysis of microcracks, fissures, cuts, perforations, roughness, and porosity in the internal and external layers after the first, second, third, and seventh reprocessing...
October 2018: Cardiology Research
John O Unuofin, Anthony I Okoh, Uchechukwu U Nwodo
Agroindustrial residual lignocellulosic biomaterial provides an economical and renewable natural bioresource for the large-scale, gainful biofuel production, as well as the production of fine bulk chemicals, which may include industrial biocatalysts. To this end, the laccase-inducing aptitude of some agroindustrial, lignocellulosic residues were appraised in submerged fermentation batch culture of two woodland betaproteobacteria (Hb9c; Achromobacter xylosoxidans HWN16, Hb16c; Bordetella bronchiseptica HSO16)...
October 17, 2018: Journal of Environmental Management
Zhenqing Li, Ziyan Zhao, Zhiqin Zhou
In this study, a preparative separation method was established to simultaneously isolate the polymethoxylated flavones (PMFs) from the peel of "Dahongpao" tangerine using macroporous adsorptive resins (MARs) combined with prep-HPLC. The total PMFs were enriched using MARs to remove most sugars, water-soluble pigments, and flavanones, and the eluents obtained were analyzed by ultra-performance liquid chromatography (UPLC) to determine the PMF composition. The separation and purification of PMFs were carried out by using a mass spectrometry-guided prep-HPLC with a gradient elution of acetonitrile-water ( v / v ), simultaneously...
October 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Heng Zhang, Youdi Liu, Chao Yang, Li Xiang, Youfan Hu, Lian-Mao Peng
Electronic systems on ultrathin polymer films are generally processed with rigid supporting substrates during fabrication, followed by delamination and transfer to the targeted working areas. The challenge associated with an efficient and innocuous delamination operation is one of the major hurdles toward high-performance ultrathin flexible electronics at large scale. Herein, a facile, rapid, damage-free approach is reported for detachment of wafer-scale ultrathin electronic foils from Si wafers by capillary-assisted electrochemical delamination (CAED)...
October 11, 2018: Advanced Materials
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"