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| 1 | Evaluation of three-dimensional biofilms on antibacterial bonding agents containing novel quaternary ammonium methacrylates显示文摘Antibacterial adhesives are promising to inhibit biofilms and secondary caries.The objectives of this study were to synthesize and incorporate quaternary ammonium methacrylates into adhesives,and investigate the alkyl chain length effects on three-dimensional biofilms adherent on adhesives for the first time.Six quaternary ammonium methacrylates with chain lengths of 3,6,9,12,16 and 18were synthesized and incorporated into Scotchbond Multi-Purpose.Streptococcus mutans bacteria were cultured on resin to form biofilms.Confocal laser scanning microscopy was used to measure biofilm thickness,live/dead volumes and live-bacteria percentage vs.distance from resin surface.Biofilm thickness was the greatest for Scotchbond control;it decreased with increasing chain length,reaching a minimum at chain length 16.Live-biofilm volume had a similar trend.Dead-biofilm volume increased with increasing chain length.The adhesive with chain length 9 had 37%live bacteria near resin surface,but close to 100%live bacteria in the biofilm top section.For chain length 16,there were nearly 0%live bacteria throughout the three-dimensional biofilm.In conclusion,strong antibacterial activity was achieved by adding quaternary ammonium into adhesive,with biofilm thickness and live-biofilm volume decreasing as chain length was increased from 3 to 16.Antibacterial adhesives typically only inhibited bacteria close to its surface;however,adhesive with chain length 16 had mostly dead bacteria in the entire three-dimensional biofilm.Antibacterial adhesive with chain length 16 is promising to inhibit biofilms at the margins and combat secondary caries. | Han Zhou Michael D Weir Joseph M Antonucci Gary E Schumacher Xue-Dong Zhou Hockin H K Xu | 2014 | International Journal of Oral Science2014，6，2： | 5 |
| 2 | Effects of a memory enhancing peptide on cognitive abilities of brain-lesioned mice: additivity with huperzine A and relative potency to tacrine显示文摘 | Xu Z Zheng H Law SL Dong So D Han Y Xue H | 2006 | 中国生物学文摘2006，20，10： | 3 |
| 3 | 残余应力导致三层聚烯烃管道防腐层剥离与开裂显示文摘这是美国运输部发起的研究项目,一个管道防腐层专家团队参与了本研究项目,评价了三层聚烯烃管道外防腐涂层(3LPO)的完整性。研究表明,三层聚烯烃管道外防腐涂层(3LPO)存在剥离和面层开裂两大完整性问题。过去几年里,据文献报道,三层聚烯烃管道外防腐涂层(3LPO)的熔结环氧粉末(FBE)底漆与钢管界面上发生多起防腐层剥离事故,以及聚丙烯(PP)面层发生开裂事故。这些防腐层事故引起人们对使用三层聚烯烃管道外防腐涂层(3LPO)的关注。一般来讲,三层聚烯烃管道外防腐涂层(3LPO)采用比较厚的聚烯烃面层增强防腐层抗机械损伤和防止水渗透的能力。但是,聚烯烃的热膨胀系数比钢材高得多,结果在防腐层系统里产生比较高的残余热应力。因为残余应力高,造成防腐层剥离,尤其在管端截短防腐层和任何防腐层的边上,因为这些是高应力集中部位。特别是假如钢管表面预处理不当,就无法保证防腐层持久达到很强的粘合强度。如果熔结环氧粉末(FBE)底漆配方选择不当,发生热氧化降解,也导致防腐层过早失效。如果使用温度很高,聚丙烯也会因为热氧化降解而变脆。在残余应力下,这样脆性的聚丙烯面层就会开裂。本文分析了三层聚烯烃管道外防腐涂层(3LPO)中的残余应力,并且探讨了残余应力对三层聚烯烃管道外防腐涂层(3LPO)剥离和聚丙烯(PP)面层开裂机理的影响。 | B.T.A.Cheng S Hung-jue J Han D Wong A Kehr M Mallozzi F Aguirre H Pham W Snider 王向农(译) | 2011 | 防腐保温技术2011，19，3： | 3 |
| 4 | High corrosion resistance of electroless composite plating coatings on AZ91D magnesium alloys 显示文摘 | SONG Y W SHAN D Y CHEN R S HAN E H | 2008 | Electrochimica Acta2008，53，： | 1 |
| 5 | Fe-Mn martensitic alloys for control of noise and vibration in engineering applications 显示文摘 | Balk S H Kim J C Han D W etal | 2006 | Materials Science and Engineering A2006，，： | 1 |
| 6 | A self-adaptive projection method with improved step-size for solving variational inequalities显示文摘 | Yan X H Han D R Sun W Y | 2008 | Computers Mathematics Applications2008，55，： | 1 |
| 7 | The effect of IL-10 genetic variation and interleukin 10 serum levels on Crohn's disease susceptibility in a New Zealand population显示文摘 | Wang A H Lam W J Han D Y | 2011 | Human Immunology2011，72，： | 1 |
| 8 | Prevalence,Capsular Type and Antimicrobial Susceptibility of Streptococcus suis Isolated from Slaughter Pigs in Korea显示文摘 | Han D U Choi C Ham H J | 2001 | Can J Vet Res2001，65，3： | 1 |
| 9 | Estimation of suspended sediment concentration in water using integrated surface reflectance显示文摘 | Mahtaba A L Runquist D C Han L H | 1998 | Geocarto International1998，13，2： | 1 |
| 10 | One-pot synthesis of brush diblock copolymers through simultaneous ATRP and click coupling 显示文摘 | Han D H Tong X Zhao Y | 2011 | Macromolecules2011，44，13： | 1 |
| 11 | Design of high power permanent magnet motor with segment rectangular copper wire and closed slot opening on electric vehicles显示文摘 | Choi J H Chtm Y D Han P W | 2010 | IEEE Transactions on Magnetics2010，46，6： | 1 |
| 12 | A general low-tem- perature route for large-scale fabrication of highly oriented ZnO nanorod/nanotube arrays显示文摘 | Yu H D Zhang Z P Han M Y | 2005 | J Am Chem Soc2005，127，8： | 1 |
| 13 | The Effect of Negative Online Con- sumer Reviews on Product Attitude : An Information Processing View显示文摘 | Lee J Park D H Han I | 2008 | Electronic Commerce Research and Applications2008，，7： | 1 |
| 14 | Limited demethylation leaves mosaic-type methylation states in cloned bovine pre-implantation embryos显示文摘 | Kang Y K Park J S Koo D B Choi Y H Kim S U Lee K K Han Y M | 2002 | The EMBO journal2002，21，5： | 1 |
| 15 | Mucosal immunization with surface-displayed severe acute respiratory syndrome coronavirus spike protein on Lactobacillus casei induces neutralizing antibodies in mice显示文摘 | Lee J S Poo H Han D P | 2006 | J Virol2006，80，8： | 1 |
| 16 | Stability and regularization of a discrete approximation to the Cauchy problem for Laplace's equation显示文摘 | Reinhardt H Han H Hào D | 1999 | SIAM J Numer Anal1999，36，3： | 1 |
| 17 | Fast speciation of mercury in seawater by short-column high-performance liquid chromatography hyphenated to inductively coupled plasma spectrometry after on-line cation exchange column preconcentration 显示文摘 | Jia X Y Gong D R Han Y Wei C Duan T C Chen H T | 2012 | Talanta2012，88，： | 1 |
| 18 | A new sphincter-preserving operation for low rectal cancer:ultralow anterior resection and colorectal/coloanal anastomosis by supporting bundling-up method显示文摘 | Han F Li H Zheng D | 2010 | Int J Colorectal Dis2010，25，7： | 1 |
| 19 | Dynamic economic dispatch:feasible and optimal solutions显示文摘 | Han X S Gooi H B Kirschen D S | 2001 | IEEE Transactions on Power Systems2001，3，1： | 1 |
| 20 | The Response of Both Surface Reflectance and the Underwater Light Field to Various Levels of Suspended Sediments: Prelimi- nary Results显示文摘 | Han L H Rundquist D C | 1994 | Photogrammetric Engineering Remote Sensing1994，60，12： | 1 |
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