Nathan E. Ogden

ORCID: 0000-0003-4390-9604
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Research Areas
  • Advanced biosensing and bioanalysis techniques
  • Advanced Biosensing Techniques and Applications
  • Chalcogenide Semiconductor Thin Films
  • Advanced Semiconductor Detectors and Materials
  • Biosensors and Analytical Detection
  • Semiconductor Quantum Structures and Devices
  • Radiation Therapy and Dosimetry
  • Photonic Crystals and Applications
  • Blood groups and transfusion
  • SARS-CoV-2 detection and testing
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Indoor and Outdoor Localization Technologies
  • Advanced Radiotherapy Techniques
  • RNA and protein synthesis mechanisms
  • Reproductive tract infections research
  • Speech and Audio Processing
  • Syphilis Diagnosis and Treatment
  • Microfluidic and Capillary Electrophoresis Applications
  • Plasmonic and Surface Plasmon Research
  • Robotics and Sensor-Based Localization
  • Hepatocellular Carcinoma Treatment and Prognosis

University of California, Santa Barbara
2018-2020

Bioengineering Center
2020

Santa Barbara City College
2019-2020

University of California System
2019

Allegheny Health Network
2017

Rice University
2012-2014

We establish the concept of a plasmonic polymer, whose collective optical properties depend on repeat unit. Experimental and theoretical analyses super- sub- radiant plasmon response polymers comprising units single nanoparticles or dimers gold show that (1) redshift lowest energy coupled mode becomes minimal as chain approaches infinite limit at length ∼10 particles, (2) presence modes are sensitive to geometries constituents, is, unit, but (3) spatial disorder nanoparticle heterogeneity...

10.1021/nl3011512 article EN Nano Letters 2012-06-27

The ability to measure the levels of diagnostically relevant proteins, such as antibodies, directly at point care could significantly impact healthcare. Thus motivated, we explore here E-DNA "scaffold" sensing platform, a rapid, convenient, single-step means this end. These sensors comprise rigid nucleic acid attached via flexible linker an electrode and modified on its distal end with redox reporter protein binding "recognition element". targeted reduces efficiency which approaches...

10.1021/acssensors.8b00311 article EN ACS Sensors 2018-06-07

Abstract The multiplexed, point-of-care measurement of specific antibodies could improve the speed with which diseases are diagnosed and their treatment initiated. To this end, we developing E-DNA scaffold sensors, consist a rigid, nucleic acid “scaffold” attached on one end to an electrode presenting both redox reporter epitope other. In absence antibody, efficiently transfers electrons when interrogated electrochemically. Binding-induced steric hindrance limits movement, reducing electron...

10.1038/s41378-019-0119-5 article EN cc-by Microsystems & Nanoengineering 2020-03-23

We explore the optimum growth space for a 47.0 Å InAs/21.5 Ga0.75In0.25Sb superlattices (SLs) designed maximum Auger suppression very long wavelength infrared gap. Our process produces consistent gap of 50 ± 5 meV. However, SL quality is sensitive to temperature (Tg). For SLs grown at 390−470 °C, photoresponse signal gradually increases as Tg from 400 440 °C. Outside this window, deteriorates rapidly. All were n-type with mobility ∼10 000 V/cm2 and 300 K recombination lifetime ∼70 ns an optimized SL.

10.1063/1.4764015 article EN Applied Physics Letters 2012-10-22

The faster a disease is diagnosed, the sooner treatment can be initiated, motivating drive to replace standard laboratory techniques with point-of-care technology. Here we describe development of an E-DNA sensor for rapid measurement anti-syphilis antibodies.

10.1039/c9an00455f article EN The Analyst 2019-01-01

The authors report growth studies to develop an InAs/GaInSb superlattice (SL) material for very long wavelength infrared detection. They select a SL structure of 47.0 Å InAs/21.5 Ga0.75In0.25Sb that is designed the greatest possible detectivity, and tune conditions achieve best quality ternary material. Since grown layers particularly sensitive extrinsic defects such as nonradiative recombination centers generated during process, investigate effect temperature (Tg) on spectral photoresponse...

10.1116/1.4864746 article EN Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena 2014-02-07

We demonstrate a successful navigation and docking control system for the John Deere Tango autonomous mower, using only single camera as input. This vision-only is of interest because it inexpensive, simple production, requires no external sensing. in contrast to existing systems that rely on integrated position sensors global positioning (GPS) technologies. To produce our we combined state-of-the-art object detection architecture, You Only Look Once (YOLO), with reinforcement learning (RL)...

10.48550/arxiv.2101.06248 preprint EN cc-by arXiv (Cornell University) 2021-01-01
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