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https://www.readbyqxmd.com/read/28626551/pickering-emulsions-stabilized-by-coloured-organic-pigment-particles
#1
Bernard P Binks, Samuel O Olusanya
The possibility of stabilizing emulsions of water and non-polar alkane with pure, coloured organic pigment particles is explored. Seven pigment types each possessing a primary colour of the rainbow were selected. Their solubility in water or heptane was determined using a spectrophotometric method and their surface energies were derived from the contact angles of probe liquids on compressed disks of the particles. As expected, most of the pigments are relatively hydrophobic but pigment orange is quite hydrophilic...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28625450/vasoplegic-syndrome-an-update-on-perioperative-considerations
#2
REVIEW
Henry Liu, Ling Yu, Longqiu Yang, Michael S Green
Vasoplegic syndrome (VS) is increasingly recognized as an important clinical entity in perioperative medicine. VS is characterized by significant arterial hypotension, normal or high cardiac output, low systemic vascular resistance, and increased requirements for intravenous volume and vasopressors. Tremendous variations exist regarding incidence reported in the literature and management at different institutions; and the incidence of VS is likely significantly higher than many anesthesiologists believe. Thus the aims of this article are to review the pertinent aspects related to VS and alert clinical anesthesiologists to this under-recognized yet very challenging clinical condition...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28624475/oxidoreductases-on-their-way-to-industrial-biotransformations
#3
REVIEW
Angel T Martínez, Francisco J Ruiz-Dueñas, Susana Camarero, Ana Serrano, Dolores Linde, Henrik Lund, Jesper Vind, Morten Tovborg, Owik M Herold-Majumdar, Martin Hofrichter, Christiane Liers, René Ullrich, Katrin Scheibner, Giovanni Sannia, Alessandra Piscitelli, Cinzia Pezzella, Mehmet E Sener, Sibel Kılıç, Willem J H van Berkel, Victor Guallar, Maria Fátima Lucas, Ralf Zuhse, Roland Ludwig, Frank Hollmann, Elena Fernández-Fueyo, Eric Record, Craig B Faulds, Marta Tortajada, Ib Winckelmann, Jo-Anne Rasmussen, Mirjana Gelo-Pujic, Ana Gutiérrez, José C Del Río, Jorge Rencoret, Miguel Alcalde
Fungi produce heme-containing peroxidases and peroxygenases, flavin-containing oxidases and dehydrogenases, and different copper-containing oxidoreductases involved in the biodegradation of lignin and other recalcitrant compounds. Heme peroxidases comprise the classical ligninolytic peroxidases and the new dye-decolorizing peroxidases, while heme peroxygenases belong to a still largely unexplored superfamily of heme-thiolate proteins. Nevertheless, basidiomycete unspecific peroxygenases have the highest biotechnological interest due to their ability to catalyze a variety of regio- and stereo-selective monooxygenation reactions with H2O2 as the source of oxygen and final electron acceptor...
June 14, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28602192/mediated-electrochemical-method-for-the-determination-of-indigo-carmine-levels-in-food-products
#4
Majid Arvand, Mehrnoosh Saberi, Masoomeh Sayyar Ardaki, Asadollah Mohammadi
In this paper, we have studied the electrochemical behavior of indigo carmine (IC) in the presence and absence of mediator molecules. We have used three azo dyes as mediators in our studies and the effect of mediator molecules on the electron transfer between the IC solution and the electrode surface was explained from the cyclic voltammograms data. Among these dyes, 4-(4-nitrophenilazo)N-benzyl,N-ethylaniline (NBE) showed good performance as an electron transfer mediator. The NBE/carbon paste was characterized with Fourier transform infrared spectroscopy and scanning electron microscopy methods...
October 1, 2017: Talanta
https://www.readbyqxmd.com/read/28595221/-resection-of-a-tuberculous-abscess-of-the-thoracic-wall
#5
Atsushi Kagimoto, Satoshi Shibata
The patient was a 76-year-old man. Chest computed tomography revealed an abscess of the chest wall incidentally. Mycobacterium tuberculosis was detected by the aspiration of the abscess. Since the abscess cavity exhibited a larger trend in spite of 3 months of antituberculosis chemotherapy, surgical resection was performed. During the operation, indigo stain was injected thorough an aspiration tube to visualize the spread of the abscess. The abscess was completely resected with combined partial resection of the 7th, 8th, and 9th ribs, and the diaphragm...
June 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28585166/development-of-media-to-accelerate-the-isolation-of-indigo-reducing-bacteria-which-are-difficult-to-isolate-using-conventional-media
#6
Masatoshi Nishita, Kikue Hirota, Hidetoshi Matsuyama, Isao Yumoto
Indigo-reducing bacteria perform natural fermentation in indigo fermentation fluid. Owing to the stochastic nature of the process, the constituent in indigo fermentation fluid differ depending on the prepared batch and fermentation period. To identify new indigo-reducing bacteria, isolation of the bacteria is indispensable. However, isolation of indigo-reducing bacteria is difficult because conventional media are often unsuitable to isolate these slow-growing bacteria that also exist in low numbers. Hydrolysates of polysaccharides and mixtures of plant base constituents are candidates to accelerate the isolation of indigo-reducing bacteria that cannot be isolated using conventional media...
July 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28578125/efficient-fluorescence-detection-of-protoporphyrin-ix-in-metastatic-lymph-nodes-of-murine-colorectal-cancer-stained-with-indigo-carmine
#7
Hisataka Matsuo, Yoshinori Harada, Takeo Minamikawa, Yoshiyuki Kato, Yasutoshi Murayama, Eigo Otsuji, Tetsuro Takamatsu, Hideo Tanaka
Protoporphyrin IX (PpIX), a biochemical converted from 5-aminolevulinc acid (5-ALA) in living cells, is useful for intraoperative fluorescent detection of cancer metastasis in lymph nodes (LNs). However, unknown is whether the fluorescence of PpIX can be detected in the LNs when they coexist with indigo carmine, a blue dye commonly used for identification of sentinel LNs during surgery. To address this issue, we sought to evaluate the diagnostic usefulness of PpIX fluorescence in the presence of indigo carmine in a mouse LN metastasis model of rectal cancer after administration of 5-ALA...
May 31, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28574450/stable-abts-immobilized-in-the-mil-100-fe-metal-organic-framework-as-an-efficient-mediator-for-laccase-catalyzed-decolorization
#8
Youxun Liu, Yuanyuan Geng, Mingyang Yan, Juan Huang
The successful encapsulation of 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), a well-known laccase mediator, within a mesoporous metal-organic framework sample (i.e., MIL-100(Fe)) was achieved using a one-pot hydrothermal synthetic method. The as-prepared ABTS@MIL-100(Fe) was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, nitrogen sorption, and cyclic voltammetry (CV). Our ABTS@MIL-100(Fe)-based electrode exhibited an excellent electrochemical response, indicating that MIL-100(Fe) provides an appropriate microenvironment for the immobilization and electroactivity of ABTS molecules...
June 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28551585/lethal-and-sub-lethal-evaluation-of-indigo-carmine-dye-and-byproducts-after-tio2-photocatalysis-in-the-immune-system-of-eisenia-andrei-earthworms
#9
Patrícia Christina Genázio Pereira, Roberta Valoura Reimão, Thelma Pavesi, Enrico Mendes Saggioro, Josino Costa Moreira, Fábio Veríssimo Correia
The Indigo carmine (IC) dye has been widely used in textile industries, even though it has been considered toxic for rats, pigs and humans. Owing to its toxicity, wastes containing this compound should be treated to minimize or eliminate their toxic effects on the biota. As an alternative to wastewater treatment, advanced oxidative processes (AOPs) have been highlighted due to their high capacity to destruct organic molecules. In this context, this study aimed to evaluate Indigo Carmine toxicity to soil organisms using the earthworm Eisenia andrei as a model-organism and also verify the efficiency of AOP in reducing its toxicity to these organisms...
May 25, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28549639/ten-year-retrospective-study-on-the-management-of-spinal-arteriovenous-lesions-efficacy-of-a-combination-of-intra-operative-digital-subtraction-angiography-and-intra-arterial-dye-injection
#10
Toshiya Osanai, Kazutoshi Hida, Takeshi Asano, Toshitaka Seki, Toru Sasamori, Kiyohiro Houkin
BACKGROUND: The goal of treatment for spinal arteriovenous lesions is to completely obliterate the shunt. In our institution, intra-operative digital subtraction angiography (IODSA) and intra-arterial injection of contrast agent have already been used to accurately identify the site of arteriovenous shunts. OBJECTIVE: In this paper, we describe the IODSA and intra-arterial dye injection (IADI) procedures, and how they may improve surgical outcomes. METHODS: We retrospectively investigated 22 patients with intra-dural arteriovenous lesions(n = 19) or spinal dural arteriovenous fistulae (SDAVFs) (n = 3)...
May 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28548010/initial-experience-with-the-6-f-and-8-f-indigo-thrombectomy-system-for-acute-renovisceral-occlusive-events
#11
Theodosios Bisdas, Konstantinos Stavroulakis, Efthymios Beropoulis, Arne Schwindt, Arne Stachmann, Martin Austermann, Giovanni Torsello
PURPOSE: To examine the safety and effectiveness of the new large-bore Indigo thrombectomy catheters to treat patients with acute renovisceral occlusion without the need of thrombolytic agents. METHODS: Between November 2015 and 2016, 7 consecutive patients (mean age 65±5 years; 5 men) with acute renovisceral artery occlusion were treated with the new large-bore (6-F and 8-F) vacuum-assisted thrombectomy catheters. The occluded vessels were 6 renal arteries and 3 superior mesenteric arteries (SMAs); 5 of the 9 thromboses were in bridging stent-grafts associated with branched endografts...
May 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28538574/sparing-a-craniotomy-the-role-of-intraoperative-methylene-blue-in-management-of-midline-dermoid-cysts
#12
Alannah L Phelan, Christine M Jones, Ashley S Ceschini, Cathy R Henry, Donald R Mackay, Thomas D Samson
BACKGROUND: Midline nasal dermoid cysts are rare congenital anomalies that extend intracranially in approximately 10 percent of cases. Cysts with intracranial extension require a craniotomy to avoid long-term complications, including meningitis, abscesses, and cavernous sinus thrombosis. Current guidelines recommend preoperative imaging with either magnetic resonance imaging or computed tomography to determine appropriate management. METHODS: Patients who underwent excision of a midline nasal dermoid cyst between January 1995 and September 2016 were identified using Current Procedural Terminology codes...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28531147/oriented-growth-of-%C3%AE-mno%C3%A2-nanorods-using-natural-extracts-from-grape-stems-and-apple-peels
#13
Lina Sanchez-Botero, Adriana P Herrera, Juan P Hinestroza
We report on the synthesis of alpha manganese dioxide (α-MnO₂) nanorods using natural extracts from Vitis vinifera grape stems and Malus domestica 'Cortland' apple peels. We used a two-step method to produce highly crystalline α-MnO₂ nanorods: (1) reduction of KMnO₄ in the presence of natural extracts to initiate the nucleation process; and (2) a thermal treatment to enable further solid-state growth of the nuclei. Transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) images provided direct evidence of the morphology of the nanorods and these images were used to propose nucleation and growth mechanisms...
May 22, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28508966/recurrent-purple-urine-bag-syndrome-presenting-with-full-spectrum-of-disease-severity-case-report-and-review-of-literature
#14
Junzhi Lin, Martha Hlafka, Omar Vargas, Mukul Bhattarai
Purple urine bag syndrome (PUBS) is a unique phenomenon characterized by purple discoloration of the urinary catheter bag and tubing following urinary catheterization lasting for hours to days. The purple discoloration is a mixture of indirubin dissolved in plastic with indigo on its surface. PUBS is most commonly associated with urinary tract infection (UTI) caused by bacteria with indoxyl phosphatase/sulfatase activity. It occurs predominantly in chronically catheterized, constipated elderly female patients...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28486367/intra-amniotic-dye-alternatives-for-the-diagnosis-of-preterm-prelabor-rupture-of-membranes
#15
Kayla E Ireland, Emma I Rodriguez, Ometeotl M Acosta, Patrick S Ramsey
Intra-amniotic dye instillation is a useful tool for evaluation of equivocal cases of preterm prelabor rupture of membranes and for genetic amniocentesis in multifetal gestation. Indigo carmine, the most used and studied dye, is no longer available. We sought to provide a resource of potential dyes for clinical use that summarizes dosing along with maternal, fetal, and neonatal outcomes. We reviewed the literature evaluating the use of alternative agents. Sodium fluorescein has proven clinical usefulness but has side effects when used intravenously...
June 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28482341/indigo-naturalis-ameliorates-oxazolone-induced-dermatitis-but-aggravates-colitis-by-changing-the-composition-of-gut-microflora
#16
Soichiro Adachi, Namiko Hoshi, Jun Inoue, Eiichiro Yasutomi, Takafumi Otsuka, Ramesh Dhakhwa, Zi Wang, Yuna Koo, Toshihiro Takamatsu, Yuriko Matsumura, Haruka Yamairi, Daisuke Watanabe, Makoto Ooi, Toshihito Tanahashi, Shin Nishiumi, Masaru Yoshida, Takeshi Azuma
BACKGROUND: Indigo naturalis (IND) is an herbal medicine that has been used as an anti-inflammatory agent to treat diseases including dermatitis and inflammatory bowel disease in China. However, the mechanism by which IND exerts its immunomodulatory effect is not well understood. METHODS: A murine model of dermatitis and inflammatory bowel disease, both induced by oxazolone (OXA), was treated with IND. The severity of dermatitis was evaluated based on ear thickness measurements and histological scoring...
2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28460930/jagua-blue-derived-from-genipa-americana-l-fruit-a-natural-alternative-to-commonly-used-blue-food-colorants
#17
J E Brauch, S P Zapata-Porras, M Buchweitz, J K Aschoff, R Carle
Due to consumers' increasing health awareness, food industry aims at replacing synthetic dyes by natural counterparts. The substitution of blue synthetic dyes is particularly challenging since current natural alternatives such as phycocyanin (Spirulina) suffer from poor stability. Jagua blue (produced from Genipa americana L. fruit) might represent a potential novel blue pigment source. However, only little is known about its color properties, and application in food systems. Therefore, the blue color and the stability of Jagua blue were assessed for the first time and compared to commonly used colorants, namely, Spirulina, brilliant blue FCF (Blue no...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28458237/indigo-carmine-cu-complex-probe-exhibiting-dual-colorimetric-fluorimetric-sensing-for-selective-determination-of-mono-hydrogen-phosphate-ion-and-its-logic-behavior
#18
Hossein Tavallali, Gohar Deilamy-Rad, Ali Moaddeli, Khadijeh Asghari
A new selective probe based on copper complex of Indigo Carmine (IC-Cu2) for colorimetric, naked-eye, and fluorimetric recognition of mono hydrogen phosphate (MHP) ion in H2O/DMSO (4:1v/v, 1.0mmolL(-1) HEPES buffer solution pH7.5) was developed. Detection limit of HPO4(2-) determination, achieved by fluorimetric and 3lorimetric method, are 0.071 and 1.46μmolL(-1), respectively. Potential, therefore is clearly available in IC-Cu2 complex to detect HPO4(2-) in micromolar range via dual visible color change and fluorescence response...
April 20, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28456086/quantum-chemical-studies-on-structural-vibrational-nonlinear-optical-properties-and-chemical-reactivity-of-indigo-carmine-dye
#19
M A M El-Mansy
Structural and vibrational spectroscopic studies were performed on indigo carmine (IC) isomers using FT-IR spectral analysis along with DFT/B3LYP method utilizing Gaussian 09 software. GaussView 5 program has been employed to perform a detailed interpretation of vibrational spectra. Simulation of infrared spectra has led to an excellent overall agreement with the observed spectral patterns. Mulliken population analyses on atomic charges, MEP, HOMO-LUMO, NLO, first order hyperpolarizability and thermodynamic properties have been examined by (DFT/B3LYP) method with the SDD basis set level...
April 20, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28452015/biodegradation-of-ciprofloxacin-by-white-rot-fungus-pleurotus-ostreatus
#20
Sushil Kumar Singh, Robinka Khajuria, Loveleen Kaur
Unrestricted and reckless use of antibiotics has resulted in their accumulation in environment. This, in turn, has led to the emergence of multiple drug-resistant microbes. The present study focuses on degradation of ciprofloxacin (CIP) by an edible white rot fungus Pleurotus ostreatus. Effect of CIP was determined on radial growth and biomass of P. ostreatus. Titrimetric and spectrophotometric assays were carried out to assess the degrading potential of P. ostreatus towards CIP. It was found that CIP has a stimulatory effect on growth and enzyme activity of P...
May 2017: 3 Biotech
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