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DNA origami mediated electrically connected metal–semiconductor junctions

Nano research 2020年第5期13卷 1419-1426页

作者： basu r.aryal Dulashani r.ranasinghe Tyler r.Westover Diana G.Calvopia robert C.Davis John N.Harb Adam T.Woolley Department of Chemistry and Biochemistry Brigham Young UniversityProvoUT 84602USA Department of Chemical Engineering Brigham Young UniversityProvoUT 84602USA Department of Physics and Astronomy Brigham Young UniversityProvoUT 84602USA

DNA-based nanofabrication of inorganic nanostructures has potential application in electronics,catalysis,and *** DNA metallization has generated conductive DNA-assembled nanostructures;however,the use of semiconductors and the development of well-connected nanoscale metal-semiconductor junctions on DNA nanostructures are still at an early ***,we report the first fabrication of multiple electrically connected metal-semiconductor junctions on individual DNA origami by location-specific binding of gold and tellurium *** attachment to DNA origami was via DNA hybridization for Au and by electrostatic interaction for *** gold plating was used to create nanoscale metal-semiconductor interfaces by filling the gaps between Au and Te ***-point electrical characterization indicated that the Au-Te-Au junctions were electrically connected,with current-voltage properties consistent with a Schottky ***-based nanofabrication of metal-semiconductor junctions opens up potential opportunities in nanoelectronics,demonstrating the power of this bottom-up approach.

关键词： current-voltage measurement DNA nanofabrication electroless plating gold nanorods nanoelectronics tellurium nanorods

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Threats of Zika virus transmission for Asia and its Hindu-Kush Himalayan region

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Infectious Diseases of Poverty 2018年第1期7卷 387-393页

作者： Meghnath Dhimal Sushma Dahal Mandira Lamichhane Dhimal Shiva raj Mishra Khem BKarki Krishna Kumar.aryal Ubydul Haque Md Iqbal Kabir Pradeep Guin Azeem Mehmood Butt Harapan Harapan Qi-Yong Liu Cordia Chu Doreen Montag David Alexander Groneberg basu Dev Pandey Ulrich Kuch ruth Muller Nepal Health research Council(NHrC) Ramshah PathKathmanduNepal Institute of Occupational edicine Social Medicine and Environmental MedicineGoethe UniversityFrankfurt am MainGermany Faculty of Social Sciences Goethe UniversityFrankfurt am MainGermany The University of Queensland BrisbaneAustralia Department of Public Health Baldwin Wallace UniversityBereaOhioUSA Department of Epidemiology National Institute of Preventive and Social MedicineMinistry of Health and Family WelfareDhakaBangladesh Public Health Foundation of India GurgaonHaryanaIndia Centre for Environmental Health GurgaonHaryanaIndia Translational Genomics Laboratory Department of BiosciencesCOMSATS Institute of Information Technology(CIIT)Islamabad 45550Pakistan Medical research Unit School of MedicineSyiah Kuala UniversityBanda AcehIndonesia WHO Collaborating Centre for Vector Surveillance and Management SKLIDCCIDICDCChina CDCBeijingChina Centre for Environment and Population Health Griffith UniversityNathanQueenslandAustralia Barts and the London School of Medicine Centre for Primary Care and Public HealthQueen Mary University of LondonLondonUK Department of Health Services Ministry of HealthGovernment of NepalKathmanduNepal

Asia and its Hindu Kush Himalayan(HKH)region is particularly vulnerable to environmental change,especially climate and land use changes further influenced by rapid population growth,high level of poverty and unsustainable *** has been a hotspot of dengue fever and chikungunya mainly due to its dense human population,unplanned urbanization and *** an urban cycle,dengue virus(DENV)and chikungunya virus(CHIKV)are transmitted by Aedes aegypti and *** mosquitoes which are also competent vectors of Zika virus(ZIKV).Over the last decade,DENV and CHIKV transmissions by *** have extended to the Himalayan countries of Bhutan and Nepal and ZIKV could follow in the footsteps of these viruses in the HKH *** already established distribution of human-biting Aedes mosquito vectors and a naïve population with lack of immunity against ZIKV places the HKH region at a higher risk of *** of the countries in the HKH region have already reported ZIKV *** have documented an increasing threat of ZIKV in Asia and its HKH region because of the high abundance and wide distribution of human-biting mosquito vectors,climate change,poverty,report of indigenous cases in the region,increasing numbers of imported cases and a naïve population with lack of immunity against *** outbreak anywhere is potentially a threat ***,in order to ensure international health security,all efforts to prevent,detect,and respond to ZIKV ought to be intensified now in Asia and its HKH *** prepare for possible ZIKV outbreaks,Asia and the HKH region can also learn from the success stories and strategies adopted by other regions and countries in preventing ZIKV and associated *** future control strategies for DENV,CHIKV and ZIKV should be considered in tandem with the threat to human well-being that is posed by other emerging and re-emerging vector-borne and zoonotic diseases,and by the continuing urgent need to strengthen public

关键词： Aedes aegypti Aedes albopictus Dengue virus Chikungunya virus Hindu Kush Himalayas Mountain Poverty Zika virus

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