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Related papers: Aptamer-based Impedimetric Sensor for Bacterial Ty…

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We examined the potential of antibody-functionalized single-walled carbon nanotube (SWNT) field-effect transistors (FETs) for use as a fast and accurate sensor for a Lyme disease antigen. Biosensors were fabricated on oxidized silicon…

Bacterial infectious diseases are a major threat to human health. Timely and sensitive pathogenic bacteria detection is crucial in identifying the bacterial contaminations and preventing the spread of infectious diseases. Due to limitations…

We have investigated the electrical conductivity of lambda-DNA using DNA covalently bonded to Au electrodes. Thiol-modified dTTP was incorporated into the `sticky' ends of bacteriophage lambda-DNA using DNA polymerase. Two-probe…

Biological Physics · Physics 2009-11-07 Y. Zhang , R. H. Austin , J. Kraeft , E. C. Cox , N. P. Ong

Antimicrobial susceptibility testing (AST) is a standard clinical procedure used to quantify antimicrobial resistance (AMR). Currently, the gold standard method requires incubation for 18-24 h and subsequent inspection for growth by a…

We present a simulation guided design for a multilayer surface plasmon resonance (SPR) based biosensor capable of detecting refractive index changes in a target induced by analytes. Surface plasmons are excited using a hybrid Kretschmann…

Optics · Physics 2025-12-23 R. Runthala , V. K. Venkatesh , D. Gupta , P. Arora

A novel approach for electrochemical tuning of alcohol oxidase (AOx) and alcohol dehydrogenase (ADH) biocatalysis towards butanol-1 oxidation by incorporating enzymes in various designs of amperometric biosensors is presented. The…

Chemical Physics · Physics 2021-02-01 Daria Semenova , Tiago Pinto , Marcus Koch , Krist V. Gernaey , Helena Junicke

DNA methylation (DNAme) is a critical component of the epigenetic regulatory machinery and aberrations in DNAme patterns occur in many diseases, such as cancer. Mapping and understanding DNAme profiles offers considerable promise for…

The survival of Salmonella spp. as pathogen indicator in composting was studied. The inoculums technique was used to gives the known amounts of Salmonella spp. involved in composting. The inoculums of Salmonella spp. solution was added…

Quantitative Methods · Quantitative Biology 2014-04-22 N. M. Sunar , E. I. Stentiford , D. I. Stewart , L. A. Flecther

Dynabeads are superparamagnetic particles used for immunomagnetic purification of cells and biomolecules. Post-capture, however, target identification relies on tedious culturing, fluorescence staining and/or target amplification. Raman…

Biological Physics · Physics 2023-07-25 Jongwan Lee , Marissa McDonald , Nikiwe Mhlanga , Jeon Woong Kang , Rohit Karnik , Loza F. Tadesse

Understanding how biological communities respond to environmental changes is a key challenge in ecology and ecosystem management. The apparent decline of insect populations necessitates more biomonitoring but the time-consuming sorting and…

This study introduces a dual-band plasmonic absorber designed for simultaneous sensing applications in the near-infrared (NIR) and mid-infrared (MIR) regions. The absorber, composed of silver nanostructures on a metal plate with a…

Optics · Physics 2024-11-20 Ayon Sarker , Sajid Muhaimin Choudhury

Kapton HN films, adopted worldwide due to their superior thermal durability (up to 400 {\deg}C), allow the high temperature sintering of nanoparticle based metal inks. By carefully selecting inks and Kapton substrates, outstanding thermal…

Computational procedures to foresee the 3D structure of aptamers are in continuous progress. They constitute a crucial input to research, mainly when the crystallographic counterpart of the structures in silico produced is not present. At…

Biomolecules · Quantitative Biology 2018-07-20 Rosella Cataldo , Livia Giotta , Maria Rachele Guascito , Eleonora Alfinito

The goal of this paper is to explore the possibility to detect and identify bacteria by sensing their odor via fluctuation-enhanced sensing with commercial Taguchi sensors. The fluctuations of the electrical resistance during exposure to…

Instrumentation and Detectors · Physics 2009-01-23 Hung-Chih Chang , Laszlo B. Kish , Maria D. King , Chiman Kwan

The detection of quantal exocytic events from neurons and neuroendocrine cells is a challenging task in neuroscience. One of the most promising platforms for the development of a new generation of biosensors is diamond, due to its…

Instrumentation and Detectors · Physics 2016-08-30 F. Picollo , A. Battiato , E. Carbone , L. Croin , E. Enrico , J. Forneris , S. Gosso , P. Olivero , A. Pasquarelli , V. Carabelli

We offer new high-performance label-free electrochemical impedimetric DNA sensors of non-faradaic type. The DNA sensors based on a platform of crystalline carbon nanotube (CNT) arrays are fabricated by the Langmuir--Blodgett (LB) deposition…

Interferometric scattering microscopy has been a very promising technology for highly sensitive label-free imaging of a broad spectrum of biological nanoparticles from proteins to viruses in a high-throughput manner. Although it can reveal…

Optics · Physics 2021-08-11 Celalettin Yurdakul , Haonan Zong , Yeran Bai , Ji-Xin Cheng , M. Selim Unlu

The Atacama B-mode Search (ABS) experiment is a 145 GHz polarimeter designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB) at large angular scales. The ABS instrument will ship to the Atacama Desert of Chile…

We demonstrate a flexible sensor for ascorbic acid detection in sweat based on single-step modified gold microelectrodes. The modification consists on the electrodeposition of alginate membrane with trapped CuO nanoparticles on top of the…