82 results match your criteria ira 400

Preparation of High-Performance Metal-Free UV/Near Infrared-Shielding Films for Human Skin Protection.

Nanomaterials (Basel) 2021 Jul 29;11(8). Epub 2021 Jul 29.

Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan.

A series of metal-free UV/near infrared (NIR)-shielding coatings are successfully fabricated by shielded cathodic arc plasma evaporation (CAPE) and substrate-biased RF magnetron sputtering processes. The UV/NIR-shielding coatings comprising quarter-wave stacks of TiO/SiO multilayers and high-conductivity sputter-deposited ITO films with a thickness in the range of 200-600 nm could block IRA and IRB radiations, respectively. The total thicknesses of UV/near infrared-shielding films are in the range from 375 nm to 1513. Read More

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Broad-Spectrum Photo-Antimicrobial Polymers Based on Cationic Polystyrene and Rose Bengal.

Front Med (Lausanne) 2021 24;8:641646. Epub 2021 May 24.

Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, Spain.

New strategies to fight bacteria and fungi are necessary in view of the problem of iatrogenic and nosocomial infections combined with the growing threat of increased antimicrobial resistance. Recently, our group has prepared and described two new readily available materials based on the combination of Rose Bengal (singlet oxygen photosensitizer) and commercially available cationic polystyrene (macroporous resin Amberlite® IRA 900 or gel-type resin IRA 400). These materials showed high efficacy in the antimicrobial photodynamic inactivation (aPDI) of . Read More

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Graphene oxide decreases Cd concentration in rice seedlings but intensifies growth restriction.

J Hazard Mater 2021 09 6;417:125958. Epub 2021 May 6.

Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China. Electronic address:

The extensive use of graphene oxide (GO) results in its inevitable entry into the environment, raising risks to the environment, especially the ecological risks when coexisting with other contaminants. Nevertheless, how GO affects the biological behavior of Cd in plants remains poorly understood. Here, we report that the transcript levels of Cd transporters, including OsIRT1, OsIRT2, OsNramp1, OsNramp5, and OsHMA2, were decreased by 56-96% in Cd-stressed rice seedlings with exposure to 400 mg L GO compared with those without GO exposure. Read More

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September 2021

Characterization of the Chloroplast Genome Facilitated the Transformation of -I, A Potential Marine Alga for Biofuel Production.

Curr Genomics 2020 Dec;21(8):610-623

1 International Centre for Genetic Engineering and Biotechnology, New Delhi110067, India; 2School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi110067, India; 3Tata Steel Limited, Research & 
Development, P O Burmamines, Jamshedpur831007, India.

Introduction: The microalga produces high biomass and lipid content that could be suitable for producing economically viable biofuel at a commercial scale. Sequencing the complete chloroplast genome is crucial for the construction of a species-specific chloroplast transformation vector.

Methods: In this study, the complete chloroplast genome sequence (cpDNA) of -I was assembled; annotated and genetic transformation of the chloroplast was optimized. Read More

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December 2020

[Sun-damaged skin (photoaging): what is new?]

Hautarzt 2021 Jan 21;72(1):2-5. Epub 2020 Dec 21.

Klinik und Poliklinik für Dermatologie, UKR - Universitätsklinikum Regensburg, Regensburg, Deutschland.

Skin aging results from the interaction of genetic and nongenetic so-called exposomal, factors. Among the exposomal factors, chronic, life-long exposure to sunlight is of eminent importance for the development of skin aging characteristics. Importantly, photoaging of human skin is not only caused by ultraviolet (UV) B and A radiation, but is also the consequence of exposure to wavelengths beyond the UV spectrum. Read More

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January 2021

Optimization of debittering and deacidification parameters for Pomelo juice and assessment of juice quality.

J Food Sci Technol 2020 Dec 3;57(12):4726-4732. Epub 2020 Sep 3.

Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam India.

Bitterness and tartness are one of the crucial reasons for the poor commerciality of Pomelo fruits. The present study intends to optimize the process variables such as resin concentration (Amberlite IRA-400) (3-10 g), time exposure (10-60 s), and stirring speed (300-1000 rpm) for removal of naringin content and tartness using response surface methodology. All the independent variables have shown a significant effect on naringin content, titrable acidity, and vitamin C content of pomelo juice. Read More

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December 2020

Facile synthesis of 2-deoxy-2-[ F]fluorosorbitol using sodium borohydride on aluminum oxide.

J Labelled Comp Radiopharm 2021 01 22;64(1):40-46. Epub 2020 Oct 22.

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.

2-Deoxy-2-[ F]fluorosorbitol ( F-FDS) has become increasingly useful in functional renal imaging. FDS is synthesized by the one-step reduction of 2-deoxy-2-[ F]fluoroglucose ( F-FDG). To develop a more simple and rapid procedure for F-FDS synthesis, we examined reduction reactions with solid-supported NaBH . Read More

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January 2021

A cost-effective combination of Rose Bengal and off-the-shelf cationic polystyrene for the photodynamic inactivation of Pseudomonas aeruginosa.

Mater Sci Eng C Mater Biol Appl 2020 Dec 24;117:111302. Epub 2020 Jul 24.

Universitat Jaume I, Departamento de Química Inorgánica y Orgánica, Avda. Sos Baynat s/n, 12071 Castellón, Spain. Electronic address:

Two new photoactive materials have been prepared, characterized and tested against Pseudomonas aeruginosa bacteria (planktonic suspension). The synthesis of the polymeric photosensitizers can be made at a multigram scale, in few minutes, starting from inexpensive and readily available materials, such as Rose Bengal (photosensitizer) and ion exchange resins Amberlite® IRA 900 (macroporous) or IRA 400 (gel-type) as cationic polystyrene supports. The most notable feature of these systems is their notable bactericidal activity in the dark (4-5 log CFU/mL reduction of the population of P. Read More

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December 2020

Variability among four refractometers for the measurement of urine specific gravity and comparison with urine osmolality in dogs.

Vet Clin Pathol 2019 Dec 14;48(4):702-709. Epub 2019 Oct 14.

Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA.

Background: Refractometry is often used in clinical veterinary medicine to estimate urine concentration. Variability among commonly-used refractometers has not been critically evaluated.

Objective: This study aimed to evaluate the variability of urine specific gravity (USG) among four refractometers and compare results of USG measurements with those of urine osmolality (U ), the gold standard for determining urine concentrations. Read More

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December 2019

Accurate Determination of Boron Content in Halite by ICP-OES and ICP-MS.

Int J Anal Chem 2019 29;2019:9795171. Epub 2019 May 29.

School of Earth Sciences and Resources, China University of Geosciences, 100083 Beijing, China.

Boron element is widely distributed in different geologic bodies, and there are important geo-chemical applications in earth science. Halite is a common mineral found in sediment basin. However there is no good method to accurately measure the boron content in halite, which is mainly because Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) and Inductively Coupled Plasma Mass Spectrometer (ICP-MS) are limited by the high salt matrix interference and the instrument detection limit. Read More

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Enhanced Photoelectrochemical Water Splitting with Er- and W-Codoped Bismuth Vanadate with WO Heterojunction-Based Two-Dimensional Photoelectrode.

ACS Appl Mater Interfaces 2019 May 14;11(21):19029-19039. Epub 2019 May 14.

The Polytechnic School, Ira A. Fulton Schools of Engineering , Arizona State University , Mesa , Arizona 85212 , United States.

A novel two-dimensional (2D) heterojunction photoelectrode composed of WO and (Er,W):BiVO is proposed for water oxidation with efficient photoinduced charge carrier separation and transfer. Er stoichiometric along with W nonstoichiometric codoping was introduced to simultaneously manage vacancy creation during substitutional doping, enhance light absorption, and reduce overall impedance. It was found that Er is substituted at the Bi sites in the BiVO lattice to provide expanded light absorption from 400 to 680 nm. Read More

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Effect of Thermally Induced Oxygen Vacancy of α-MnO Nanorods toward Oxygen Reduction Reaction.

Inorg Chem 2019 Apr 25;58(8):5335-5344. Epub 2019 Mar 25.

Centro de Investigación Científica de Yucatán , Carretera Sierra Papacal - Chuburná Puerto, km 5. Sierra Papacal , Mérida , C.P. 97302 , Yucatán , México.

MnO has been explored for various applications in environmental and energy aspects. However, the thermal sensitivity of the MnO crystal structure never been studied. As a potential cathode material for fuel cell, α-MnO has a higher specific activity than Pt/C based on per metals cost. Read More

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Growth Enhancement of Probiotic by Extractive Fermentation of Lactic Acid Exploiting Anion-Exchange Resin.

Front Microbiol 2018 29;9:2554. Epub 2018 Oct 29.

Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Malaysia.

Fermentation employing lactic acid bacteria (LAB) often suffers end-product inhibition which reduces the cell growth rate and the production of metabolite. The utility of adsorbent resins for lactic acid removal to enhance the cultivation performance of probiotic, was studied. Weak base anion-exchange resin, Amberlite IRA 67 gave the highest maximum uptake capacity of lactic acid based on Langmuir adsorption isotherm (0. Read More

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October 2018

Recovery of Al, Cr and V from steel slag by bioleaching: Batch and column experiments.

J Environ Manage 2018 Sep 23;222:30-36. Epub 2018 May 23.

Chemistry, School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.

Steel slag is a major by-product of the steel industry and a potential resource of technology critical elements. For this study, a basic oxygen furnace (BOF) steel slag was tested for bacterial leaching and recovery of aluminium (Al), chromium (Cr), and vanadium (V). Mixed acidophilic bacteria were adapted to the steel slag up to 5% (w/v). Read More

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September 2018

Human Factors in Medical Device Design: Methods, Principles, and Guidelines.

Crit Care Nurs Clin North Am 2018 Jun 4;30(2):225-236. Epub 2018 Apr 4.

Human Systems Engineering Program, Ira A. Fulton Schools of Engineering, Arizona State University, 7271 East Sonoran Arroyo Mall, 150 J Santa Catalina Hall, Mesa, AZ 88001, USA. Electronic address:

A total of 400,000 to 500,000 patients die in intensive care units (ICUs) each year, largely because ICUs care for the sickest patients. On the other hand, factors such as workload, shift changes, handoffs, alarm fatigue, inadequate team communication, and difficult-to-use medical devices contribute to the problem. This article focuses on the human factors of those medical devices, a significant cause of adverse events in the ICU. Read More

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Identification and characterization of the expression profile of the microRNAs in the Amazon species Colossoma macropomum by next generation sequencing.

Genomics 2017 03 10;109(2):67-74. Epub 2017 Feb 10.

Institute of Coastal Studies, Laboratory of Genetics and Molecular Biology, Federal University of Pará, Campus of Bragança, 68600-000 Bragança, PA, Brazil. Electronic address:

Colossoma macropomum is a resistant species native of Amazonas and Orinoco river basins. It is regarded as the second largest finfish of Solimões and Amazon rivers, representing a major fishery resource in Amazonas and an important species in tropical aquaculture. MicroRNAs are non-coding endogenous riboregulators of nearly 22 nucleotides that play a key role in post-transcriptional gene regulation of several organisms. Read More

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Barriers to the Access of Bevacizumab in Patients with Solid Tumors and the Potential Impact of Biosimilars: A Physician Survey.

Pharmaceuticals (Basel) 2017 Jan 28;10(1). Epub 2017 Jan 28.

Pfizer Inc, 235 East 42nd Street, New York, NY 10017-5755, USA.

Access to bevacizumab, an important component of oncology treatment regimens, may be limited. This survey of oncologists in the US ( = 150), Europe ( = 230), and emerging markets (EM: Brazil, Mexico, and Turkey; = 130) examined use of and barriers to accessing bevacizumab as treatment of advanced solid tumors. We also assessed the likelihood that physicians would prescribe a bevacizumab biosimilar, if available. Read More

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January 2017

Diffusive gradients in thin films measurement of sulfur stable isotope variations in labile soil sulfate.

Anal Bioanal Chem 2016 Nov 29;408(29):8333-8341. Epub 2016 Sep 29.

Department of Chemistry - VIRIS Laboratory, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria.

A diffusive gradient in thin films (DGT) technique, based on a strongly basic anion exchange resin (Amberlite IRA-400), was successfully tested for S/S analysis in labile soil sulfate. Separation of matrix elements (Na, K, and Ca) that potentially cause non-spectral interferences in S/S analysis by MC ICP-MS (multi-collector inductively coupled plasma-mass spectrometry) during sampling of sulfate was demonstrated. No isotopic fractionation caused by diffusion or elution of sulfate was observed below a resin gel disc loading of ≤79 μg S. Read More

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November 2016

Novel diffusive gradients in thin films technique to assess labile sulfate in soil.

Anal Bioanal Chem 2016 Sep 4;408(24):6759-67. Epub 2016 Aug 4.

Department of Chemistry - VIRIS Laboratory, University of Natural Resources and Life Sciences Vienna, Konrad-Lorenz-Strasse 24, 3430, Tulln, Austria.

A novel diffusive gradients in thin films (DGT) technique for sampling labile soil sulfate was developed, based on a strong basic anion exchange resin (Amberlite IRA-400) for sulfate immobilization on the binding gel. For reducing the sulfate background on the resin gels, photopolymerization was applied instead of ammonium persulfate-induced polymerization. Agarose cross-linked polyacrylamide (APA) hydrogels were used as diffusive layer. Read More

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September 2016

Covalent triazine-based framework: A promising adsorbent for removal of perfluoroalkyl acids from aqueous solution.

Environ Pollut 2016 Sep 4;216:884-892. Epub 2016 Jul 4.

State Key Laboratory of Pollution Control and Resource Reuse/School of the Environment, Nanjing University, Jiangsu, 210046, China; School of Urban and Environmental Sciences, Peking University, Beijing, 100871, China. Electronic address:

Perfluoroalkyl acids (PFAAs) are highly stable, persistent, and ubiquitous in the environment with significant concerns growing with regards to both human and ecosystem health. Due to the high stability to both biological and chemical attack, the only currently feasible approach for their removal from water is adsorbent technology. The main objective of this study was to assess a covalent triazine-based framework (CTF) adsorbent for removal from aqueous solutions of perfluoro C4, C6, and C8 carboxylates and sulfonates including the two C8s most commonly monitored, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). Read More

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September 2016

A dose escalating phase I study of GLPG0187, a broad spectrum integrin receptor antagonist, in adult patients with progressive high-grade glioma and other advanced solid malignancies.

Invest New Drugs 2016 Apr 20;34(2):184-92. Epub 2016 Jan 20.

Department of Medical Oncology, University Medical Center Utrecht, Heidelberglaan 100, 3584, CX Utrecht, The Netherlands.

Background: Integrin signaling is an attractive target for anti-cancer treatment. GLPG0187 is a broad spectrum integrin receptor antagonist (IRA). GLPG0187 inhibited tumor growth and metastasis in mouse models. Read More

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Reversible, Selective Trapping of Perchlorate from Water in Record Capacity by a Cationic Metal-Organic Framework.

Environ Sci Technol 2016 Feb 25;50(4):1949-54. Epub 2016 Jan 25.

University of California , Santa Cruz Department of Chemistry and Biochemistry, 1156 High Street, Santa Cruz California 95064, United States.

We report the capture of ppm-level aqueous perchlorate in record capacity and kinetics via the complete anion exchange of a cationic metal-organic framework. Ambient conditions were used for both the synthesis of silver 4,4'-bipyridine nitrate (SBN) and the exchange, forming silver 4,4'-bipyridine perchlorate (SBP). The exchange was complete within 90 min, and the capacity was 354 mg/g, representing 99% removal. Read More

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February 2016

De novo sequencing and analysis of Lophophora williamsii transcriptome, and searching for putative genes involved in mescaline biosynthesis.

BMC Genomics 2015 Sep 2;16:657. Epub 2015 Sep 2.

Laboratorio Nacional de Genómica para la Biodiversidad (LANGEBIO), Centro de Investigación y Estudios Avanzados del IPN, 36500, Irapuato, Guanajuato, México.

Background: Lophophora williamsii (commonly named peyote) is a small, spineless cactus with psychoactive alkaloids, particularly mescaline. Peyote utilizes crassulacean acid metabolism (CAM), an alternative form of photosynthesis that exists in succulents such as cacti and other desert plants. Therefore, its transcriptome can be considered an important resource for future research focused on understanding how these plants make more efficient use of water in marginal environments and also for research focused on better understanding of the overall mechanisms leading to production of plant natural products and secondary metabolites. Read More

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September 2015

Modular, Metal-Catalyzed Cycloisomerization Approach to Angularly Fused Polycyclic Aromatic Hydrocarbons and Their Oxidized Derivatives.

J Org Chem 2015 Aug 21;80(15):7435-46. Epub 2015 Jul 21.

†Department of Chemistry, The City College and The City University of New York, 160 Convent Avenue, New York, New York 10031, United States.

Palladium-catalyzed cross-coupling reactions of 2-bromobenzaldehyde and 6-bromo-2,3-dimethoxybenzaldehyde with 4-methyl-1-naphthaleneboronic acid and acenaphthene-5-boronic acid gave corresponding o-naphthyl benzaldehydes. Corey-Fuchs olefination followed by reaction with n-BuLi led to various 1-(2-ethynylphenyl)naphthalenes. Cycloisomerization of individual 1-(2-ethynylphenyl)naphthalenes to various benzo[c]phenanthrene (BcPh) analogues was accomplished smoothly with catalytic PtCl2 in PhMe. Read More

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Generation of aroE overexpression mutant of Bacillus megaterium for the production of shikimic acid.

Microb Cell Fact 2015 May 17;14:69. Epub 2015 May 17.

Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S., Nagar, 160062, Punjab, India.

Background: Shikimic acid, the sole chemical building block for the antiviral drug oseltamivir (Tamiflu®), is one of the potent pharmaceutical intermediates with three chiral centers. Here we report a metabolically engineered recombinant Bacillus megaterium strain with aroE (shikimate dehydrogenase) overexpression for the production of shikimic acid.

Results: In a 7 L bioreactor, 4. Read More

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Molecular mechanisms of anti-hyperglycemic effects of Costus speciosus extract in streptozotocin-induced diabetic rats.

Saudi Med J 2014 Dec;35(12):1501-6

Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt. E-mail.

Objectives: To investigate the mechanisms of the anti-hyperglycemic effect of Costus speciosus (C. speciosus) root ethanolic extracts (CSREt) by assessing its action on insulin synthesis and glucose catabolic enzyme gene expression and activities in streptozotocin (STZ) diabetic rats.

Methods: This study was carried out at the Biochemical Laboratory, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt between July and August 2013. Read More

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December 2014

Clinical and procedural predictors of no-reflow in patients with acute myocardial infarction after primary percutaneous coronary intervention.

World J Emerg Med 2014 ;5(2):96-102

Department of Cardiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, China.

Background: The treatment of acute myocardial infarction (AMI) is thought to restore antegrade blood flow in the infarct-related artery (IRA) and minimize ischemic damage to the myocardium as soon as possible. The present study aimed to identify possible clinical predictors for no-reflow in patients with AMI after primary percutaneous coronary intervention (PCI).

Methods: A total of 312 consecutive patients with AMI who had been treated from January 2008 to December 2010 at the Cardiology Department of East Hospital, Tongji University School of Medicine were enrolled in this study. Read More

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September 2014

Selective removal of phosphate from wastewater using hydrated metal oxides dispersed within anionic exchange media.

Chemosphere 2015 Jan 12;119:1353-1360. Epub 2014 Mar 12.

Cranfield Water Science Institute, Cranfield University, Cranfield MK43 0AL, UK. Electronic address:

Hydrated ferric oxide (HFeO), hydrated zirconium oxide (HZrO) and hydrated copper oxide (HCuO) were immobilized within a microporous anion exchange resin (IRA-400), forming hybrid media for enhanced phosphate removal from aqueous systems. Empirical data from batch kinetic trials fitted the pseudo second order mechanism for chemical adsorption and each media was rate limited by intraparticle diffusion overall. These models were also used to predict the adsorption rate constants and the equilibrium adsorption capacities, which ranged from 26. Read More

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January 2015

Biotransformation of glycerol to 3-hydroxypropionaldehyde: improved production by in situ complexation with bisulfite in a fed-batch mode and separation on anion exchanger.

J Biotechnol 2013 Dec 21;168(4):534-42. Epub 2013 Sep 21.

Department of Biotechnology, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden.

3-Hydroxypropionaldehyde (3HPA) is an important C3 chemical that can be produced from renewable glycerol by resting whole cells of Lactobacillus reuteri. However the process efficiency is limited due to substrate inhibition, product-mediated loss of enzyme activity and cell viability, and also formation of by-products. Complex formation of 3HPA with sodium bisulfite and subsequent binding to Amberlite IRA-400 was investigated as a means of in situ product recovery and for overcoming inhibition. Read More

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December 2013

Preconcentration determination of arsenic species by sorption of As(V) on Amberlite IRA-410 coupled with fluorescence quenching of L-cysteine capped CdS nanoparticles.

Analyst 2013 Oct;138(19):5769-76

Department of Chemistry, Faculty of Science, University of Birjand, P.O. Box 414, Birjand, Iran.

A simple and accurate method for arsenic speciation analysis in natural and drinking water samples is described in which preconcentration of arsenic as As(V) was coupled with spectrofluorometric determination. The extracted As(V) species with a column containing Amberlite IRA-410 were subjected to L-cysteine capped CdS quantum dots (QDs) and the fluorescence quenching of the QDs due to reduction of As(V) by L-cysteine was considered as a signal relevant to As(V) concentration. The As(III) species were also determined after oxidation of As(III) ions to As(V) with H2O2 and measurement of the total arsenic content. Read More

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October 2013