Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication
- Publication Type
Articles 1 - 5 of 5
Full-Text Articles in Food Science
Simple And Rapid Detection Of Ractopamine In Pork With Comparison Of Lspr And Lfia Sensors, Min Ji Lee, Sheik Aliya, Eun-Seon Lee, Tae-Joon Jeon, Mi-Hwa Oh, Yun Suk Huh
Simple And Rapid Detection Of Ractopamine In Pork With Comparison Of Lspr And Lfia Sensors, Min Ji Lee, Sheik Aliya, Eun-Seon Lee, Tae-Joon Jeon, Mi-Hwa Oh, Yun Suk Huh
Journal of Food and Drug Analysis
This study developed a simple and rapid strategic technique to detect ractopamine (chemical growth-promoting agent) in pork. Two highly sensitive and specific gold nanoparticle-based portable sensors, i.e., localized surface plasmon resonance (LSPR) sensors, and lateral flow immunoassay (LFIA) strips were developed to detect veterinary drug residues in food products, that have detrimental effects on humans. Optimization studies were conducted on several sensor devices to improve sensitivity. Each sensor comprised functionalized gold nanoparticles conjugated with ractopamine antibodies. The LSPR sensor chip achieved excellent detection sensitivity = 1.19 fg/mL and was advantageous for quantitative analysis due to its wide dynamic range. On …
Nanomaterial-Based Fluorescent Biosensor For Veterinary Drug Detection In Foods, Xiaoqi Tao, Yuanyuan Peng, Juewen Liu
Nanomaterial-Based Fluorescent Biosensor For Veterinary Drug Detection In Foods, Xiaoqi Tao, Yuanyuan Peng, Juewen Liu
Journal of Food and Drug Analysis
Veterinary drugs have been widely used in the food industry. Their residues in food products need to be tightly regulated to ensure food safety. In particular, some veterinary drugs are still used illegally, although they have already been banned. Nanomaterials are playing an increasingly important role in analytical chemistry due to their unique properties. Compared to traditional organic dyes and colloidal gold nanoparticle labels, fluorescent nanomaterials appear particularly attractive for the detection of veterinary drug residues. This review summarizes recent advancements of fluorescent biosensors using nanomaterials for the detection of veterinary drug residues in foods. The useful properties of each …
Functionalized Electrospun Nanofibers For Food Science Applications, Minhui Dai
Functionalized Electrospun Nanofibers For Food Science Applications, Minhui Dai
Doctoral Dissertations
This work is separated into two individual parts. The first part demonstrates the ability to electrospin reagents into water-soluble nanofibers resulting in a stable on-chip enzyme and a microphage storage format. 1a) Polyvinylpyrrolidone (PVP) nanofibers were spun incorporating the enzyme horseradish peroxidase (HRP). Scanning electron microscopy of the spun nanofibers was used to confirm the non-woven structure with an average diameter of 155±34 nm. The HRP containing fibers were tested for a change in activity following electrospinning and during storage. A colorimetric assay was used to characterize the activity of HRP reacting with the nanofiber mats in a microtiter plate …
Bacteriophage: Bioengineered Bacterial Detection And Applications, Samuel D. Alcaine
Bacteriophage: Bioengineered Bacterial Detection And Applications, Samuel D. Alcaine
Doctoral Dissertations
Bacteria are ubiquitous and vital constituents of our environment, our foods, and our bodies. A small percentage of this vast, microbial population is pathogenic to humans, but represents a significant burden on public health. There is a current public health focus on two subgroups: foodborne pathogenic bacteria and antibiotic resistance bacteria. A key challenge for public health is the rapid identification of these bacteria to prevent their consumption and to ensure proper treatment for infections. This challenge calls for the development of novel, low-cost diagnostics that combine sensitivity and accuracy with speed and ease-of-use. Bacteriophages represent rapid, readily targeted, and …
Planning Visit: U.S.- Irish R&D Partnership, Laurie B. Connell
Planning Visit: U.S.- Irish R&D Partnership, Laurie B. Connell
University of Maine Office of Research Administration: Grant Reports
This project provides support for a planning visit to Queen's University in Belfast, UK and Dublin City University in Dublin, Ireland. The US principal investigator is Laurie Connell from the University of Maine. The foreign collaborators are Chris Elliott in Belfast and Richard O'Kennedy in Dublin.
The primary purpose of this planning visit is to develop a full proposal that will be submitted to NSF's Biotechnology, Biochemical, and Biomass Engineering Program (BBBE). The proposal will address BBBE's research priority area of food safety through implementation of nano-biotechnology and biosensor development.
The research goal is to develop new technologies to deliver …