Inactivation of model viruses and bacteria in human fresh frozen plasma using riboflavin and long wave ultraviolet rays.

CONCLUSION: Results showed that the employed method can inactivate most of the pathogens in fresh frozen plasma. The acceptable activities of selected plasma proteins remained after treatment. PMID: 28775824 [PubMed]
Source: Iranian Journal of Microbiology - Category: Microbiology Tags: Iran J Microbiol Source Type: research

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CONCLUSIONS: About one to five patients treated with URS developed an infectious complication and E. Faecalis and E. Coli were the most frequent pathogen isolated. A positive SC is the only independent risk factor for postoperative infection: consequently, an early SC analysis could allow a prompt antibiotic therapy in all patients with positive SC even if mildly symptomatic. PMID: 31833334 [PubMed - as supplied by publisher]
Source: Minerva Urologica e Nefrologica - Category: Urology & Nephrology Tags: Minerva Urol Nefrol Source Type: research
In this study, the CD48 gene of tilapia (Oreochromis niloticus, named On-CD48), was cloned from the head kidney of tilapia. The coding sequences is 654 bp and encoding 217 amino acids. The deduced amino acid sequence of On-CD48 with an estimated molecular weight of 24.4 kDa and a theoretical pI of 5.03. Amino acid alignment indicated that it had two immunoglobulin-like domain conserved region. In healthy tilapia, the On-CD48 could be detected in all the examined tissues and the highest expression level in the spleen. The expression of On-CD48 in the spleen and head kidney was decreased after immunized by formalin-inactiv...
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research
In this study, a microchip electrophoretic method for biosensing E. coli O157:H7 was developed by using E. coli O157:H7 aptamer (apt-E) for specific bacteria recognition together with aptamer-induced catalysed hairpin assembly (CHA) for significantly improving the sensitivity of bacteria detection. Briefly, three nucleic acid strands (apt-E, hairpin H1, and H2) were used in the CHA amplification. Because different quantities of H1/H2 complexes were formed due to the circle amplification induced with different amounts of apt-E and the correlation between the concentrations of apt-E and E. coli O157:H7, E. coli O157:H7 thus ...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
Publication date: Available online 10 December 2019Source: Sensors and Actuators B: ChemicalAuthor(s): Haitao Zhao, Lip Ket Chin, Yuzhi Shi, Kim Truc Nguyen, Patricia Yang Liu, Yi Zhang, Meng Zhang, Jingbo Zhang, Hong Cai, Eric Peng Huat Yap, Wee Ser, Ai-Qun LiuAbstractThe emerging single-cell technologies call for novel biological tools that can manipulate target cells in a massive and spatially-arranged manner. Here we report a nanophotonic platform, named WANTS (Waveguide-pair Array-based Nanophotonic Trapping System), for massive trapping and alignment of rod-shaped bacteria. This platform leverages silicon waveguide-p...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
Publication date: Available online 5 December 2019Source: Sensors and Actuators B: ChemicalAuthor(s): Hsin-Yao Wang, Chih-Yu Chen, Po-Yu Chu, Yu-Xian Zhu, Chia-Hsun Hsieh, Jang-Jih Lu, Min-Hsien WuAbstractDifferent levels of antibiotic resistance reside in a bacterial clone (heteroresistance) is regarded as an important cause leading to development of superbugs and treatment failure of infectious diseases. However, phenotypical detection of bacterial heteroresistance is not available in current clinical practice or by present analytical tools. To address this issue, we developed an optically induced dielectrophoresis (ODEP...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
Publication date: Available online 14 December 2019Source: Journal of Electroanalytical ChemistryAuthor(s): Martina Čierna, Monika Naumowicz, Lucia Birošová, Ján Krahulec, Romana Sokolová, Viliam Kolivoška, Táňa Sebechlebská, Filip Kielar, Miroslav GálAbstractSelected electrochemical methods for the determination of possible membrane permeabilization in two Escherichia coli bacterial strains were examined. Escherichia coli, a gram-negative rod-shaped bacterium, is an important component of the mammalian intestinal microflora. However, some strains of this bacterium ...
Source: Journal of Electroanalytical Chemistry - Category: Chemistry Source Type: research
In this study, a bi-functional composite, La(OH)3 loaded poly(epichlorohydrin)-ethylenediamine (PEE@La), was fabricated from La-compound and poly(epichlorohydrin)-ethylenediamine (PEE) through a simple chemical synthesis, and its performance on phosphate removal and bacteria disinfection was systematically evaluated. In terms of adsorption, PEE@La-100% exhibits a maximum capacity with PO43- of 186.6 mg g-1, and the behavior of PEE@La-100% fits well with Langmuir model and Pseudo second-order kinetic, implying that this process should be a monolayer and chemical adsorption. In addition, PEE@La-100% maintained ...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Category: Chemistry Source Type: research
Publication date: Available online 13 December 2019Source: Chinese Chemical LettersAuthor(s): Li Jin, Xun Liu, Changhao Bian, Jie Sheng, Yishan Song, Yongheng ZhuAbstractTo develop a novel food preservation technology for efficiently enhance bactericidal activity in a long term, hollow mesoporous silica spheres (HMSS) with regular nanostructures were applied to encapsulate natural organic antimicrobial agents. The chemical structures, morphologies and thermal stabilities of linalool, HMSS and linalool-functionalized hollow mesoporous silica spheres (L-HMSS) nanoparticles were evaluated by polarimeter, field emission scanni...
Source: Chinese Chemical Letters - Category: Chemistry Source Type: research
Publication date: Available online 14 December 2019Source: The Journal of Foot and Ankle SurgeryAuthor(s): Shahin Sheibani-Rad, Cameron FarsarAbstractHerpes zoster has an incidence of 350,000 cases per year in the United States. The involvement of the foot and ankle is rare. Most surgeons are not aware of this disease as a cause of extremity pain, its manifestation, and the treatment options. Post-herpetic neuralgia is a common sequela of herpes zoster and can be prevented with prompt treatment. In this article, we present a case of a 53-year-old female with right heel pain secondary to herpes zoster.
Source: The Journal of Foot and Ankle Surgery - Category: Orthopaedics Source Type: research
Abstract The first demonstration of a photothermal heterodyne interferometer (PHI) combined with micro-HPLC (high-performance liquid chromatography) is reported. A semiconductor laser (375 nm) was used for excitation, and the temperature change caused by heat released from photoexcited species was detected with a He-Ne laser (632.8 nm). The temperature-dependent refractive index change of the solvent modified the optical path of the probe beam. The phase difference between two arms of the interferometer, one passing through the heated sample and another as a reference, was sensitively detected with the PHI. The ni...
Source: Analytical Sciences : the international journal of the Japan Society for Analytical Chemistry - Category: Chemistry Authors: Tags: Anal Sci Source Type: research
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