Sökning: "Zhen Zhang"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden Zhen Zhang.

1. 6. Solid-State Nanopores for Sensing : From Theory to Applications

   Författare :Chenyu Wen; Shi-Li Zhang; Zhen Zhang; Ulrich F. Keyser; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solid-state nanopore; ionic current; current blockage; effective transport length; noise; surface charge; translocation; biomolecule; electroosmotic flow; vortex; autogenic translocation; multiple nanopores; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

   Sammanfattning : Nanopore based sensing technology has been widely studied for a broad range of applications including DNA sequencing, protein profiling, metabolite molecules, and ions detection. The nanopore technology offers an unprecedented technological solution to meeting the demands of precision medicine on rapid, in-field, and low-cost biomolecule analysis. LÄS MER

3. 7. Synthesis and In Situ ToF-LEIS Analysis of Ultrathin Silicides and Ti-based Films

   Författare :Philipp Mika Wolf; Daniel Primetzhofer; Zhen Zhang; Eduardo Pitthan; Tuan Thien Tran; Anders Hallén; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ion scattering; in situ characterization; nickel silicide; ultrathin metal silicide; epitaxial silicide; surface analysis; titanium based films; high-resolution depth profiling;

   Sammanfattning : Thin films and coatings play a significant role in today’s society, with applications in electronics, optics, mechanics, and biomedicine. Further advancement in the field of surface coatings requires a good understanding of the unique features of ultrathin films and surfaces, which can only be reached with analysis techniques capable of resolving composition and morphology on a sub-nm scale. LÄS MER

4. 8. Interface Studies for Gold-based Electrochemical DNA Sensors

   Författare :Xingxing Xu; Zhen Zhang; Boukherroub Rabah; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Gold based label-free electrochemical DNA sensors have been widely studied for biomarker diagnostics. The sensitivity and reproducibility of these sensors are determined by the sensing interface: the DNA modified gold surfaces. LÄS MER

5. 9. Silicon Nanowire Based Sensors for Bacterial Tests

   Författare :Yingtao Yu; Zhen Zhang; Mihai Adrian Ionescu; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon nanowire; field-effect transistor; antibiotic susceptibility test; bacterial metabolism; nanoelectromechanical sensor; multiplexed detection;

   Sammanfattning : Rapid and reliable antibiotic susceptibility testing (AST) is urgently required to diagnose bacterial infectious diseases and avoid antibiotic misuse, providing valuable information on the efficacy of antibiotic agents and their dosages for treatment. However, the currently employed phenotypic ASTs normally demand the growth of bacteria into colonies, which usually takes more than two days. LÄS MER

7. 10. Solid-state nanopores : fabrication and applications

   Författare :Shuangshuang Zeng; Zhen Zhang; Amit Meller; Uppsala universitet; []
   Nyckelord :solid-state nanopore; truncated-pyramidal nanopore; nanopore array; pore size reduction; individual addressability; microfluidics; translocation.; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

   Sammanfattning : Nanopores are of great interest in study of DNA sequencing, protein profiling and power generation. Among them, solid-state nanopores show obvious advantages over their biological counterparts in terms of high chemical stability and reusability as well as compatibility with the existing CMOS fabrication techniques. LÄS MER