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https://www.readbyqxmd.com/read/28335247/hydrothermal-fabrication-of-silver-nanowires-silver-nanoparticles-graphene-nanosheets-composites-in-enhancing-electrical-conductive-performance-of-electrically-conductive-adhesives
#1
Hongru Ma, Jinfeng Zeng, Steven Harrington, Lei Ma, Mingze Ma, Xuhong Guo, Yanqing Ma
Silver nanowires-silver nanoparticles-graphene nanosheets (AgNWs-AgNPs-GN) hybrid nanomaterials were fabricated through a hydrothermal method by using glucose as a green reducing agent. The charge carriers of AgNWs-AgNPs-GN passed through defect regions in the GNs rapidly with the aid of the AgNW and AgNP building blocks, leading to high electrical conductivity of electrically conductive adhesives (ECA) filled with AgNWs-AgNPs-GN. The morphologies of synthesized AgNWs-AgNPs-GN hybrid nanomaterials were characterized by field emission scanning electron microscope (FESEM), and high resolution transmission electron microscopy (HRTEM)...
June 21, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333113/silane-modified-diopside-for-improved-interfacial-adhesion-and-bioactivity-of-composite-scaffolds
#2
Cijun Shuai, Chenying Shuai, Pei Feng, Youwen Yang, Yong Xu, Tian Qin, Sheng Yang, Chengde Gao, Shuping Peng
Diopside (DIOP) was introduced into polyetheretherketone/polyglycolicacid (PEEK/PGA) scaffolds fabricated via selective laser sintering to improve bioactivity. The DIOP surface was then modified using a silane coupling agent, 3-glycidoxypropyltrimethoxysilane (KH570), to reinforce interfacial adhesion. The results showed that the tensile properties and thermal stability of the scaffolds were significantly enhanced. It could be explained that, on the one hand, the hydrophilic group of KH570 formed an organic covalent bond with the hydroxy group on DIOP surface...
March 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28331230/dentin-sialoprotein-facilitates-dental-mesenchymal-cell-differentiation-and-dentin-formation
#3
Wentong Li, Lei Chen, Zhuo Chen, Lian Wu, Junsheng Feng, Feng Wang, Lisa Shoff, Xin Li, Kevin J Donly, Mary MacDougall, Shuo Chen
Dentin sialoprotein (DSP) is a dentin extracellular matrix protein. It is involved in dental mesenchymal cell lineages and dentin formation through regulation of its target gene expression. DSP mutations cause dentin genetic diseases. However, mechanisms of DSP in controlling dental mesenchymal cell differentiation are unknown. Using DSP as bait, we screened a protein library from mouse odontoblastic cells and found that DSP is a ligand and binds to cell surface receptor, occludin. Further study identified that the C-terminal DSP domain(aa 363-458) interacts with the occludin extracellular loop 2(aa 194-241)...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327437/evaluating-the-effect-of-antioxidant-agents-on-shear-bond-strength-of-tooth-colored-restorative-materials-after-bleaching-a-systematic-review
#4
REVIEW
Atiyeh Feiz, Hamid Mosleh, Rahman Nazeri
PURPOSE: The main objective of the present study was to make a systematic review of how antioxidant agents affect shear bond strength of tooth-colored restorative materials after bleaching. DATA SOURCES: Electronic search was used to extract the related articles on the targeted key words such as "antioxidant", "dental bleaching" and "shear bond strength" (SBS) from MeSH, PubMed, Medline, and Cochrane electronic data bases. These articles were all published before 2016...
March 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28327178/glyceraldehyde-3-phosphate-dehydrogenase-acts-as-an-adhesin-in-erysipelothrix-rhusiopathiae-adhesion-to-porcine-endothelial-cells-and-as-a-receptor-in-recruitment-of-host-fibronectin-and-plasminogen
#5
Weifeng Zhu, Qiang Zhang, Jingtao Li, Yanmin Wei, Chengzhi Cai, Liang Liu, Zhongmin Xu, Meilin Jin
Erysipelothrix rhusiopathiae is the causative agent of animal erysipelas and human erysipeloid. Previous studies suggested glyceraldehyde 3-phosphate dehydrogenase (GAPDH) plays a role in the pathogenesis of E. rhusiopathiae infection. We studied E. rhusiopathiae GAPDH interactions with pig vascular endothelial cells, fibronectin, and plasminogen. Recombinant GAPDH (rGAPDH) was successfully obtained, and it was shown that it plays a role in E. rhusiopathiae adhesion to pig vascular endothelial cells. Moreover, rGAPDH could bind fibronectin and plasminogen in a dose-dependent manner...
March 21, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28326322/a-comparison-of-tissue-engineering-scaffolds-incorporated-with-manuka-honey-of-varying-umf
#6
Katherine R Hixon, Tracy Lu, Sarah H McBride-Gagyi, Blythe E Janowiak, Scott A Sell
Purpose. Manuka honey (MH) is an antibacterial agent specific to the islands of New Zealand containing both hydrogen peroxide and a Unique Manuka Factor (UMF). Although the antibacterial properties of MH have been studied, the effect of varying UMF of MH incorporated into tissue engineered scaffolds have not. Therefore, this study was designed to compare silk fibroin cryogels and electrospun scaffolds incorporated with a 5% MH concentration of various UMF. Methods. Characteristics such as porosity, bacterial clearance and adhesion, and cytotoxicity were compared...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28324803/leishmania-donovani-resistant-to-ambisome-or-miltefosine-exacerbates-cd58-expression-on-nk-cells-and-promotes-trans-membrane-migration-in-association-with-cd2
#7
Pushkar Shivam, Sarita Kumari, Fauzia Jamal, Vikash Kumar, Manish Kumar, Sanjiva Bimal, Shyam Narayan, Vidya Nand Ravi Das, Krishna Pandey, Anil Kumar Gupta, Pradeep Das, Shubhankar Kumar Singh
Visceral leishmaniasis (VL) is a disease that is associated with compromised immunity and drug un-responsiveness as well as with the emergence of drug resistance in Leishmania donovani (Ld). Ld down-modulates cellular immunity by manipulating signaling agents, including a higher expression of the adhesion molecule CD58. The expression of CD58 and CD2 on natural killer (NK) cells facilitates intercellular adhesion and signaling. The influence of drug-resistant Ld on the expression of CD58 and CD2 was addressed in this study...
March 16, 2017: Cytokine
https://www.readbyqxmd.com/read/28323870/contribution-of-sortase-srta2-to-lactobacillus-casei-bl23-inhibition-of-staphylococcus-aureus-internalization-into-bovine-mammary-epithelial-cells
#8
Renata F S Souza, Julien Jardin, Chantal Cauty, Lucie Rault, Damien S Bouchard, Luis G Bermúdez-Humarán, Philippe Langella, Vicente Monedero, Núbia Seyffert, Vasco Azevedo, Yves Le Loir, Sergine Even
Probiotics have been considered as a promising strategy to prevent various diseases in both humans and animals. This approach has gained interest in recent years as a potential means to control bovine mastitis. In a previous study, we found that several L. casei strains, including BL23, were able to inhibit the internalization of S. aureus, a major etiologic agent of mastitis, into bovine mammary epithelial cells (bMEC). This antagonism required a direct contact between L. casei and bMEC or S. aureus, suggesting the inhibition relied on interactions between L...
2017: PloS One
https://www.readbyqxmd.com/read/28321657/novel-hemostatic-agents-based-on-gelatin-microbial-transglutaminase-mix
#9
Fang Lv, Xiaonan Cong, Wenshu Tang, Yiming Han, Yu Tang, Yongrui Liu, Liqiang Su, Mingyao Liu, Mingfei Jin, Zhengfang Yi
Hemostasis is a major challenge in surgical procedures and traumas. Conventional hemostatic methods have limited efficacy and may cause additional tissue damage. In this study, we designed a novel hemostatic agent based on the in situ gel formation of gelatin cross-linked by a novel microbial transglutaminase (mTGase), in which the amino acid sequences differed from commercial mTGases. The new hemostatic agent showed the same biochemical crosslinking chemistry as the final stages of the blood coagulation cascade while using gelatin as a "structural" protein (rather than fibrin) and a calcium-independent mTGase as the crosslinking catalyst (rather than factor XIIIa)...
March 17, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28319517/effects-of-a-lidocaine-loaded-poloxamer-alginate-cacl2-mixture-on-postoperative-pain-and-adhesion-in-a-rat-model-of-incisional-pain
#10
Geun Joo Choi, Hyun Kang, Min Eui Hong, Hwa Yong Shin, Chong Wha Baek, Yong Hun Jung, Younsuk Lee, Jeong Wook Kim, I L Kyu Park, Wan Jin Cho
BACKGROUND: Pain and adhesion are problematic issues after surgery. Lidocaine has analgesics and anti-inflammatory properties, and poloxamer/alginate/CaCl2 (PACM) is a known antiadhesive agent. We hypothesized that the novel combination of lidocaine as chemical barrier and PACM as physical barrier would be beneficial for both postoperative pain and adhesion. The purpose of this study was to investigate the effects of lidocaine-loaded PACM in a rat model of incisional pain. Primary outcome was to evaluate between-group differences for the mechanical withdrawal threshold (MWT) measured by von Frey filament in various concentrations of lidocaine-loaded PACM applied, PACM applied, and sham-operated groups...
March 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319414/preparation-and-characterization-of-zno-nanoparticles-coated-by-chitosan-linoleic-acid-fungal-growth-and-biofilm-assay
#11
S Barad, M Roudbary, A Nasrollahi Omran, M Porgham Daryasari
INTRODUCTION: This study has been carried out on reviewing the use of new synthetic component of zinc oxide nanoparticles (ZnO NPs) coated by Chitosan-linoleic acid (CS-LA) and to assess Minimum inhibitory concentration (MIC) of nanoparticles on clinical samples and biofilm formation in vitro. MATERIALS AND METHODS: At first the synthesized ZnO NPs coated by CS-LA were identified with X-ray powder diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscope (TEM) and Fourier Transform Infrared Spectroscopy analysis (FTIR)...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28317806/mycobacterium-lepraemurium-uses-tlr-6-and-mr-but-not-lipid-rafts-or-dc-sign-to-gain-access-into-mouse-macrophages
#12
Mayra Silva-Miranda, Patricia Arce-Paredes, Oscar Rojas-Espinosa
OBJECTIVE/BACKGROUND: Mycobacterium lepraemurium (MLM), the etiologic agent of murine leprosy, is an intracellular parasite of macrophages; the mechanism used by this bacterium to enter macrophages is not known. The fate of the MLM phagosome inside macrophages is also unknown. This study was conducted to investigate how MLM enters macrophages and to define the maturation process of MLM phagosome inside macrophages. MATERIALS AND METHODS: Peritoneal macrophages were incubated in the presence of mannan-bovine serum albumin (BSA), and antibodies to known macrophage receptors, including, anti-FcγRIII/RII (anti-CD16/32), anti-CD35 (anti-CR1), anti-TLR2, anti-TLR4, anti-TLR6, anti-CD14, and anti-dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN)...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317350/-effects-of-dentin-demineralization-and-bond-strength-properties-of-bioactive-glass-containing-resin-adhesive
#13
Wang Yu, Gong Ling, Ji Yan, Zheng Lichun, Chen Song
OBJECTIVE: This study investigated the shear bond strength and the ability of resin adhesive containing different amounts of bioactive glass (BG) to prevent dentin demineralization. METHODS: BG bonds at 30%, 40%, and 50% concentrations comprised a mixture of coupling agents modifying BG and Single Bond 2. Forty permanent premolars extracted for orthodontic treatment were randomly divided into four groups, namely, control group (BG-free), 30% BG group, 40% BG group, and 50% BG group...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316952/interface-between-mta-and-dental-bonding-agents-scanning-electron-microscope-evaluation
#14
Gabriele Cervino, Luca Fiorillo, Gianrico Spagnuolo, Ennio Bramanti, Luigi Laino, Floriana Lauritano, Marco Cicciù
AIMS AND OBJECTIVES: Nowadays, the material that offers the best sealing characteristic in the field of endodontic treatment is the mineral trioxide aggregate (MTA), nevertheless, this material necessities an adhesive bonding agent to perfectly join to the dental surface. The aim of this study was to analyze using a scanning electron microscope (SEM) the possible microgap between the adhesive, MTA, and the dental surface. MATERIAL AND METHODS: Fourteen extracted molars were divided into two groups - group A was prepared with MTA-component adhesive and group B was prepared with MTA and composite dual etching...
January 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28306357/asthma-causes-inflammation-of-human-pulmonary-arteries-and-decreases-vasodilatation-induced-by-prostaglandin-i2-analogs
#15
Nabil Foudi, Aouatef Badi, Mounira Amrane, Wassim Hodroj
OBJECTIVE: Asthma is a chronic inflammatory disease associated with increased cardiovascular events. This study assesses the presence of inflammation and the vascular reactivity of pulmonary arteries in patients with acute asthma. METHODS: Rings of human pulmonary arteries obtained from non-asthmatic and asthmatic patients were set up in organ bath for vascular tone monitoring. Reactivity was induced by vasoconstrictor and vasodilator agents. Protein expression of inflammatory markers was detected by western blot...
February 21, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28301850/influence-of-vitreomacular-adhesion-on-anti-vascular-endothelial-growth-factor-treatment-for-neovascular-age-related-macular-degeneration
#16
Tereza Cristina Moreira Kanadani, Carlos Eduardo Dos Reis Veloso, Syril Dorairaj, Márcio Bittar Nehemy
PURPOSE: To investigate the effect of vitreomacular adhesion (VMA) on the outcome of antiangiogenic treatment for neovascular age-related macular degeneration (AMD). METHODS: Ninety-nine eyes of 83 patients were used in our cohort study. We prospectively evaluated best corrected visual acuity (BCVA) and central retinal thickness (CRT) in patients with neovascular AMD at baseline and 1, 2, 3, 6, and 12 months after treatment with anti-vascular endothelial growth factor (anti-VEGF) agents...
March 17, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28301139/designing-hydrogels-for-on-demand-therapy
#17
Nuria Oliva, João Conde, Kui Wang, Natalie Artzi
Systemic administration of therapeutic agents has been the preferred approach to treat most pathological conditions, in particular for cancer therapy. This treatment modality is associated with side effects, off-target accumulation, toxicity, and rapid renal and hepatic clearance. Multiple efforts have focused on incorporating targeting moieties into systemic therapeutic vehicles to enhance retention and minimize clearance and side effects. However, only a small percentage of the nanoparticles administered systemically accumulate at the tumor site, leading to poor therapeutic efficacy...
March 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28298987/effect-of-different-concentrations-of-specific-inhibitor-of-matrix-metalloproteinases-on-the-shear-bond-strength-of-self-adhesive-resin-cements-to-dentin
#18
Mohammad-Esmaeel Ebrahimi-Chaharom, Mehdi Abed-Kahnamoui, Mahmoud Bahari, Hamed Hamishehkar, Mahya Gharouni
BACKGROUND: Considering the probability of chemical and enzymatic reactions between matrix metalloproteinases (MMPs) in the dentin structure and their specific inhibitors, the aim of the present study was to evaluate the effect of different concentrations of specific inhibitor of MMPs (galardin) on the shear bond strength of self-adhesive resin cements to dentin. MATERIAL AND METHODS: Forty-eight sound human premolars were mounted in self-cured acrylic resin after removal of the enamel on the buccal and lingual surfaces...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28296390/clickable-antifouling-polymer-brushes-for-polymer-pen-lithography
#19
Uwe Bog, Andres de Los Santos Pereira, Summer L Mueller, Shana Havenridge, Viviana Parrillo, Michael Bruns, Andrea E Holmes, Cesar Rodriguez-Emmenegger, Harald Fuchs, Michael Hirtz
Protein-repellent reactive surfaces that promote localized specific binding are highly desirable for applications in the biomedical field. Nonspecific adhesion will compromise the function of bioactive surfaces, leading to ambiguous results of binding assays and negating the binding specificity of patterned cell-adhesive motives. Localized specific binding is often achieved by attaching a linker to the surface, and the other side of the linker is used to bind specifically to a desired functional agent, as e...
March 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28294475/sodium-tanshinone-iia-sulfonate-prevents-hypoxic-trophoblast-induced-endothelial-cell-dysfunction-via-targeting-hmgb1-release
#20
Min Zhao, Yaling Feng, Jianping Xiao, Jie Liang, Yongxiang Yin, Daozhen Chen
Preeclampsia (PE) is a serious blood pressure disorder of pregnancy. Systemic endothelial cell dysfunction, a hallmark of PE, is previously estimated to be induced by hypoxic trophoblast high mobility group box 1 (HMGB1). In the present study, we investigated the protective effect of sodium tanshinone IIA sulfonate (STS), the soluble form of tanshinone IIA isolated from danshen, against hypoxic trophoblast HMGB1-induced human umbilical vein endothelial cell (HUVEC) dysfunction. Our results showed that HMGB1 expression and release were significantly decreased in STS-treated hypoxic JEG-3 cells...
February 16, 2017: Journal of Biochemical and Molecular Toxicology
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