keyword
https://read.qxmd.com/read/38006374/dermatoscopic-features-of-early-erythema-chronicum-migrans
#1
JOURNAL ARTICLE
Yunus Ozcan, Sumeyye Gunes Takir, Ebru Karagun, Belkiz Uyar
Dear Editors, A 37-year-old man from a Lyme disease-endemic area presented with a one-week old rapidly expanding rash on his right calf. He lacked other comorbidities or symptoms such as fever, weakness, lack of appetite, or joint pain, but recalled removing a tick from the same region three weeks earlier. Inspection revealed a round, bluish-red erythematous patch with a central clearing (Figure 1). The patient experienced no discomfort, but the rash was warm and faded easily when palpated. Dermatoscopic inspection revealed collarette-shaped white scales encircling the punctum of the tick bite in the center (Figure 2, left inset)...
November 2023: Acta Dermatovenerologica Croatica: ADC
https://read.qxmd.com/read/37947220/surface-roughness-optical-properties-and-microhardness-of-additively-and-subtractively-manufactured-cad-cam-materials-after-brushing-and-coffee-thermal-cycling
#2
JOURNAL ARTICLE
Gülce Çakmak, Mustafa Borga Donmez, Marcella Silva de Paula, Canan Akay, Manrique Fonseca, Çiğdem Kahveci, Samir Abou-Ayash, Burak Yilmaz
PURPOSE: To evaluate the surface roughness, optical properties, and microhardness of additively or subtractively manufactured CAD-CAM materials after simulated brushing and coffee thermal cycling. MATERIAL AND METHODS: Two additively manufactured resins (Crowntec, CT and VarseoSmile Crown Plus, VS) and 3 subtractively manufactured materials (a reinforced composite (Brilliant Crios, BC), a polymer-infiltrated ceramic network (Enamic, VE), and a feldspathic ceramic (Mark II, VM)) were used to fabricate disk-shaped specimens (Ø10×1-mm) (n = 10)...
November 10, 2023: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://read.qxmd.com/read/37787254/seeing-beyond-gaucher-disease-early-detection-and-treatment-of-ocular-complications
#3
JOURNAL ARTICLE
Padmaja K Rani, Dibya Prabha, Saumya Jakati, Rohan Nalawade
BACKGROUND: Gaucher disease is a rare genetic disorder caused by a deficiency in the enzyme glucocerebrosidase, which impairs the body's ability to break down certain fats. This leads to the accumulation of glucosyl sphingosine and glucosyl ceramide in the liver, spleen, and bone marrow. Gaucher disease has two major types: nonneuropathic (Type 1) and neuropathic (Type 2 and Type 3). Gaucher disease can have various ophthalmologic manifestations, particularly in Type 3, including posterior segment abnormalities, such as vitreous opacities, condensations, and/or preretinal white dots...
October 2023: Indian Journal of Ophthalmology
https://read.qxmd.com/read/37765563/development-and-characterization-of-a-molecularly-imprinted-polymer-for-the-selective-removal-of-brilliant-green-textile-dye-from-river-and-textile-industry-effluents
#4
JOURNAL ARTICLE
Miguel Luna Quinto, Sabir Khan, Jaime Vega-Chacón, Bianca Mortari, Ademar Wong, Maria Del Pilar Taboada Sotomayor, Gino Picasso
In this paper, we present an alternative technique for the removal of Brilliant Green dye (BG) in aqueous solutions based on the application of molecularly imprinted polymer (MIP) as a selective adsorbent for BG. The MIP was prepared by bulk radical polymerization using BG as the template; methacrylic acid (MAA) as the functional monomer, selected via computer simulations; ethylene glycol dimethacrylate (EGDMA) as cross-linker; and 2,2'-azobis(2-methylpropionitrile) (AIBN) as the radical initiator. Scanning electron microscopy (SEM) analyses of the MIP and non-molecularly imprinted polymer (NIP)-used as the control material-showed that the two polymers exhibited similar morphology in terms of shape and size; however, N2 sorption studies showed that the MIP displayed a much higher BET surface (three times bigger) compared to the NIP, which is clearly indicative of the adequate formation of porosity in the former...
September 8, 2023: Polymers
https://read.qxmd.com/read/36903518/optimized-extraction-identification-and-anti-biofilm-action-of-wu-wei-zi-fructus-schisandrae-chinensis-extracts-against-vibrio-parahaemolyticus
#5
JOURNAL ARTICLE
Zongyi Zhang, Yanan Zhao, Jing Cai, Tong Wang, Yujie Song, Jingyi Lu, Hairuo Du, Wenfang Wang, Yan Zhao, Lei Guo
The pathogenicity of foodborne Vibrio parahaemolyticus is a major concern for global public health. This study aimed to optimize the liquid-solid extraction of Wu Wei Zi extracts (WWZE) against Vibrio parahaemolyticus , identify its main components, and investigate the anti-biofilm action. The extraction conditions optimized by the single-factor test and response surface methodology were ethanol concentration of 69%, temperature at 91 °C, time of 143 min, and liquid-solid ratio of 20:1 mL/g. After high performance liquid chromatography (HPLC) analysis, it was found that the main active ingredients of WWZE were schisandrol A, schisandrol B, schisantherin A, schisanhenol, and schisandrin A-C...
February 28, 2023: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/36891857/beam-induced-redox-chemistry-in-iron-oxide-nanoparticle-dispersions-at-esrf-ebs
#6
JOURNAL ARTICLE
Sabrina L J Thomä, Mirijam Zobel
The storage ring upgrade of the European Synchrotron Radiation Facility makes ESRF-EBS the most brilliant high-energy fourth-generation light source, enabling in situ studies with unprecedented time resolution. While radiation damage is commonly associated with degradation of organic matter such as ionic liquids or polymers in the synchrotron beam, this study clearly shows that highly brilliant X-ray beams readily induce structural changes and beam damage in inorganic matter, too. Here, the reduction of Fe3+ to Fe2+ in iron oxide nanoparticles by radicals in the brilliant ESRF-EBS beam, not observed before the upgrade, is reported...
March 1, 2023: Journal of Synchrotron Radiation
https://read.qxmd.com/read/36625306/development-of-an-automated-colorimeter-controlled-by-raspberry-pi4
#7
JOURNAL ARTICLE
Kevin U Antela, Roberto Sáez-Hernández, M Luisa Cervera, Ángel Morales-Rubio, M José Luque
A low-cost new instrument to carry out automated colorimetric analysis has been developed. The device consists of a carousel sampler, built by a 3D-printer, and a Raspberry Pi4-controlled signal measurement module based on the RGBC (red, green, blue and clear) responses of a TCS34725 color light-to-digital converter with IR filter. The device has been tested with calibration standards of different food dyes (Tartrazine, Red Allure AC and Brilliant Blue FCF) and three food samples containing one of each food dye...
January 10, 2023: Analytical Methods: Advancing Methods and Applications
https://read.qxmd.com/read/36341816/botany-ethnopharmacology-phytochemistry-and-pharmacology-of-erodii-herba-geranii-herba-an-review
#8
REVIEW
Chuchu Kong, Xinxin Pang, Zhijun Su, Yonggang Liu
ETHNOPHARMACOLOGICAL RELEVANCE: As a commonly used traditional Chinese herbal medicine, Erodii Herba Geranii Herba (Geranium wilfordii Maxim., Geranium carolinianum L. and Erodium stephanianum Willd.), which was known as Laoguancao (Chinese:), has high medicinal value. It has been used to dispel rheumatism, dredge the meridians, activate blood circulation, remove blood stasis, clear heat and detoxify, and stop diarrhea and dysentery. It's also used to treat eczema, sores, carbuncles, boils caused by accumulation of damp toxin...
October 28, 2022: Journal of Ethnopharmacology
https://read.qxmd.com/read/36239245/boimpy-based-nir-ii-fluorophore-with-high-brightness-and-long-absorption-beyond-1000-nm-for-in-vivo-bioimaging-synergistic-steric-regulation-strategy
#9
JOURNAL ARTICLE
Senyao Liu, Weijia Xu, Xiaoxin Li, Dai-Wen Pang, Hu Xiong
Fluorescence imaging in the second near-infrared (NIR-II, 1000-1700 nm) region holds great promise for in vivo bioimaging. However, it is challenging to develop a brilliant donor-acceptor-donor (D-A-D) type NIR-II fluorophore with maximal absorption beyond 1000 nm in aqueous solution. Herein, we report a bright D-A-D type BOIMPY-based NIR-II dye (NK1143) with peak absorption/emission at 1005/1143 nm for in vivo bioimaging. Co-assembly of NK1143, SC12 (intermolecular steric hindrance modulator), and DSPE-PEG2000 effectively inhibits H-aggregation of NK1143 in aqueous solution and enhances the brightness simultaneously up to 53-fold by leveraging synergistic steric regulation strategy...
October 14, 2022: ACS Nano
https://read.qxmd.com/read/35940454/looking-for-guidance-models-and-methods-to-study-axonal-navigation
#10
REVIEW
Alexandre Dumoulin, Esther T Stoeckli
The molecular mechanisms of neural circuit formation have been of interest to Santiago Ramón y Cajal and thousands of neuroscientists sharing his passion for neural circuits ever since. Cajal was a brilliant observer and taught us about the connections and the morphology of neurons in the adult and developing nervous system. Clearly, we will not learn about molecular mechanisms by just looking at brain sections or cells in culture. Technically, we had to come a long way to today's possibilities that allow us to perturb target gene expression and watch the consequences of our manipulations on navigating axons in situ...
August 6, 2022: Neuroscience
https://read.qxmd.com/read/35863445/nano-hydroxyapatite-modified-biochar-insights-into-the-dynamic-adsorption-and-performance-of-lead-ii-removal-from-aqueous-solution
#11
JOURNAL ARTICLE
Waqas Ahmed, Tianwei Xu, Mohsin Mahmood, Avelino Núñez-Delgado, Sehrish Ali, Awais Shakoor, Muhammad Qaswar, Hongwei Zhao, Wenjie Liu, Weidong Li, Sajid Mehmood
Adsorption of lead as Pb(II) using biochar is an environmentally sustainable approach to remediate this kind of pollution affecting wastewater. In this study, rice straw biochar (BC) was modified by combination with nano-hydroxy-apatite (HAP), resulting in a material designated as BC@nHAP, with enhanced adsorption performance. Based on Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses, it was evidenced that, after modification, HAP greatly enhanced surface functional groups (i...
July 18, 2022: Environmental Research
https://read.qxmd.com/read/35840568/conformational-heterogeneity-of-molecules-physisorbed-on-a-gold-surface-at-room-temperature
#12
JOURNAL ARTICLE
Mingu Kang, Hyunwoo Kim, Elham Oleiki, Yeonjeong Koo, Hyeongwoo Lee, Huitae Joo, Jinseong Choi, Taeyong Eom, Geunsik Lee, Yung Doug Suh, Kyoung-Duck Park
A quantitative single-molecule tip-enhanced Raman spectroscopy (TERS) study at room temperature remained a challenge due to the rapid structural dynamics of molecules exposed to air. Here, we demonstrate the hyperspectral TERS imaging of single or a few brilliant cresyl blue (BCB) molecules at room temperature, along with quantitative spectral analyses. Robust chemical imaging is enabled by the freeze-frame approach using a thin Al2 O3 capping layer, which suppresses spectral diffusions and inhibits chemical reactions and contamination in air...
July 15, 2022: Nature Communications
https://read.qxmd.com/read/34910443/erk-modulates-macrophage-polarization-and-alters-exosome-mirna-expression-in-diabetic-nephropathy
#13
JOURNAL ARTICLE
Shen Shen, Jing Huang, Chen Xu, Yang Shen, Shimin Jiang, Yanchun Li, Hailing Wang, Min Zhang
BACKGROUND: The aim is to probe into the differential expression of miRNA in macrophage exosomes in diabetic nephropathy (DN) by ERK regulating macrophage polarization through the NF-κB/JAK-STAT signaling pathway. METHODS: Our team cultivated the mouse macrophage line RAW264 cells. When the cell growth status was good, we added 30 mmol/L glucose, and then added ERK/JAK-STAT/NF-κB inhibitors separately. We adopted western blot for observing macrophage polarization and the impact of JAK-STAT inhibitor on caspase-9, eNOS, NF-κB p65 expression, extracted exosomes, and total exosome RNA of each group of cells...
December 1, 2021: Clinical Laboratory
https://read.qxmd.com/read/34719514/technology-s-palette-voyager-s-eyes-and-the-hyperchromatic-enhancement-of-jupiter-and-saturn
#14
JOURNAL ARTICLE
Elizabeth A Kessler
In the late 1970s and early 1980s, NASA's Voyager mission offered the first clear pictures of Jupiter and Saturn. These images show the planets in strikingly brilliant, recognizably engineered, psychedelic colors: technology's palette. The use of color was justified on epistemological grounds; it made visible scientifically compelling features. But color palette also has a history, one that has not been previously considered. This article takes up this history and adds to the literature on the visual culture of science...
2021: Technology and Culture
https://read.qxmd.com/read/34679131/guest-editorial-acute-medicine-and-pandemics-getting-it-right-next-time
#15
JOURNAL ARTICLE
M Holland
For those of you who are not aware of what GIRFT (Getting It Right First Time) is, let me start by saying it is a brilliant idea, genius perhaps. The vision of its founder, Professor Tim Briggs CBE, was to optimise orthopaedic care by using the most clinically and cost effective treatments, minimising waste, reducing variation and eliminating poor practice. Since 2014 in orthopaedics alone, operational and financial opportunities to save the NHS £696 million have been generated. Acute medicine, coupled with general medicine, has been part of the GIRFT programme since 2017...
2021: Acute Medicine
https://read.qxmd.com/read/34509968/interactions-of-nanoparticles-and-salinity-stress-at-physiological-biochemical-and-molecular-levels-in-plants-a-review
#16
JOURNAL ARTICLE
Hassan Etesami, Hamideh Fatemi, Muhammad Rizwan
Salinity stress is one of the most destructive non-biological stresses in plants that has adversely affected many agricultural lands in the world. Salinity stress causes many morphological, physiological, epigenetic and genetic changes in plants by increasing sodium and chlorine ions in the plant cells. The plants can alleviate this disorder to some extent through various mechanisms and return the cell to its original state, but if the salt dose is high, the plants may not be able to provide a proper response and can die due to salt stress...
September 9, 2021: Ecotoxicology and Environmental Safety
https://read.qxmd.com/read/34473092/on-the-centennials-of-the-discoveries-of-the-hydrogen-bond-and-the-structure-of-the-water-molecule-the-short-life-and-work-of-eustace-jean-cuy-1897-1925
#17
JOURNAL ARTICLE
Zygmunt S Derewenda
The bent structure of the water molecule, and its hydrogen-bonding properties, arguably rank among the most impactful discoveries in the history of chemistry. Although the fact that the H-O-H angle must deviate from linearity was inferred early in the 20th century, notably from the existence of the electric dipole moment, it was not clear what that angle should be and why. One hundred years ago, a young PhD student at the University of California, Berkeley, Eustace J. Cuy, rationalized the V-shape structure of a water molecule using the Lewis theory of a chemical bond, i...
September 1, 2021: Acta Crystallographica. Section A, Foundations and Advances
https://read.qxmd.com/read/34468173/a-novel-attenuated-enterovirus-a71-mutant-with-vp1-v238a-k244r-exhibits-reduced-efficiency-of-cell-entry-exit-and-augmented-binding-affinity-to-sulfated-glycans
#18
JOURNAL ARTICLE
Tao Meng, Sek-Man Wong, Kaw-Bing Chua
Enterovirus A71 (EV-A71) is one of the major etiological agents of hand, foot, and mouth disease, and its infection occasionally leads to fatal neurological complications in children. However, only inactivated whole virus vaccines against EV-A71 are commercially available in Mainland China. Furthermore, the mechanisms underlying the infectivity and pathogenesis of EV-A71 remain to be better understood. By adaptation of an EV-A71 B5 strain in monkey Vero cells in the presence of brilliant black BN (E151), an anti-EV-A71 agent, a double mutant with VP1-V238A,K244R emerged to be E151 enhanced infection...
September 1, 2021: Journal of Virology
https://read.qxmd.com/read/34354155/coomassie-brilliant-blue-g-250-modified-carbon-paste-electrode-sensor-for-the-voltammetric-detection-of-dihydroxybenzene-isomers
#19
JOURNAL ARTICLE
K Chetankumar, B E Kumara Swamy, S C Sharma, H Adarsha
In this present study, coomassie brilliant blue G-250 (CBBG) modified electrode was fabricated for the specific and simultaneous detection of three dihydroxybenzene isomers such as resorcinol (RS), catechol (CC) and hydroquinone (HQ). The fabrication of the modified electrode was carried out by electrochemical polymerization of CBBG on the surface of unmodified electrode. The surface structures of bare and fabricated electrode were studied by scanning electron microscope (SEM). The established electrode portrays the very fine interface with these isomers and displayed the sufficient sensitivity and selectivity...
August 5, 2021: Scientific Reports
https://read.qxmd.com/read/34313108/crystallization-induced-enhanced-electrochemiluminescence-from-tetraphenyl-alkene-nanocrystals-for-ultrasensitive-sensing
#20
JOURNAL ARTICLE
Jia-Li Liu, Jia-Qi Zhang, Ying Zhou, Dong-Rong Xiao, Ying Zhuo, Ya-Qin Chai, Ruo Yuan
Organic materials with diverse structures and brilliant glowing colors have been attracting extensive attention in optical electronic devices and electrochemiluminescence (ECL) fields and are currently faced with the issue of low ECL efficiency. Herein, a series of tetraphenyl alkene nanocrystals (TPA NCs) with an ordered molecular structure were synthesized to explore regularities in the crystallization-induced enhanced (CIE) ECL emission effects by altering the number and position of vinyl on the backbone of TPA molecules...
July 27, 2021: Analytical Chemistry
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