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1. Detection of Salmonella from chicken rinsate with visible/near-infrared hyperspectral microscope imaging compared against RT-PCR

Author:
Park, Bosoon,   et al.   ; Eady, Matthew; Setia, Gayatri;     Show all 3 Authors
Source:
Talanta 2019 v.195 pp. 313-319
ISSN:
0039-9140
Subject:
Salmonella; agar; broiler chickens; chicken carcasses; culture media; discriminant analysis; hyperspectral imagery; poultry industry; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction
Abstract:
... Salmonella is an organism of importance to the poultry industry with increasingly stringent government regulatory standards. Real-time polymerase chain reaction (RT-PCR) and plating procedures on nutrient enriched growth media have been the standard detection methods of Salmonella from broiler chicken carcasses for years. These methods are proven, but offer disadvantages in the amount of time or r ...
DOI:
10.1016/j.talanta.2018.11.071

2. Label-free screening of foodborne Salmonella using surface plasmon resonance imaging

Author:
Park, Bosoon,   et al.   ; Chen, Jing;     Show all 2 Author
Source:
Analytical and bioanalytical chemistry 2018 v.410 no.22 pp. 5455-5464
ISSN:
1618-2642
Subject:
Salmonella; antibodies; chicken carcasses; chickens; detection limit; foodborne illness; image analysis; immunoassays; ligands; microarray technology; microbial detection; microorganisms; pH; pathogens; peptones; public health; screening; serotypes; surface plasmon resonance
Abstract:
... It is estimated that 95% of the foodborne infections are caused by 15 major pathogens. Therefore, rapid and effective multiplex screening techniques for these pathogens with improved efficiencies could benefit public health at lower costs. Surface plasmon resonance imaging (SPRi) provides a label-free, multiplex analytical platform for pathogen screening. In this study, we have developed a singlep ...
DOI:
10.1007/s00216-017-0810-z

3. Effect of immunomagnetic bead size on recovery of foodborne pathogenic bacteria

Author:
Park, Bosoon,   et al.   ; Chen, Jing;     Show all 2 Author
Source:
International journal of food microbiology 2018 v.267 pp. 1-8
ISSN:
0168-1605
Subject:
Escherichia coli; Salmonella Enteritidis; bacteria; buffers; chicken carcasses; egg albumen; food matrix; food pathogens; immunomagnetic separation; liquids; magnetism; microparticles; nanoparticles; rapid methods; surface area
Abstract:
... Immunomagnetic separation (IMS) as a culture-free enrichment sample preparation technique has gained increasing popularity in the development of rapid detection methods for foodborne pathogens. While the use of magnetic nanoparticles in IMS is on the rise due to substantially larger surface area compared to conventional magnetic microparticles, the effects of immunomagnetic bead (IMB) size on path ...
DOI:
10.1016/j.ijfoodmicro.2017.11.022

4. Water-based binary polyol process for the controllable synthesis of silver nanoparticles inhibiting human and foodborne pathogenic bacteria

Author:
Park, Bosoon,   et al.   ; Nam, Sunghyun; Condon, Brian D.;     Show all 3 Authors
Source:
RSC advances 2018 v.8 no.39 pp. 21937-21947
ISSN:
2046-2069
Subject:
Pseudomonas aeruginosa; absorbance; ethylene glycol; humans; liquids; minimum inhibitory concentration; nanoparticles; nanosilver; particle size; polyethylene glycol; polyols; silver; temperature; virulent strains
Abstract:
... The polyol process is a widely used strategy for producing nanoparticles from various reducible metallic precursors; however, it requires a bulk polyol liquid reaction with additional protective agents at high temperatures. Here, we report a water-based binary polyol process using low concentrations of high-molecular-weight polyethylene glycol (100 000 g mol⁻¹, 2 wt%) and ethylene glycol (5 wt%). ...
DOI:
10.1039/c8ra01823e

5. Recent Advancements in Nanobioassays and Nanobiosensors for Foodborne Pathogenic Bacteria Detection

Author:
Park, Bosoon,   et al.   ; Chen, Jing;     Show all 2 Author
Source:
Journal of food protection 2016 v.79 no.6 pp. 1055-1069
ISSN:
0362-028X
Subject:
disease prevention; food matrix; food pathogens; food safety; foods; markets; microbial contamination; microbial detection; nanomaterials; outbreak investigation; rapid methods
Abstract:
... Bacterial pathogens are one of the leading causes of food safety incidents and product recalls worldwide. Timely detection and identification of microbial contamination in agricultural and food products is crucial for disease prevention and outbreak investigation. In efforts to improve and/or replace time-consuming and laborious "gold standards" for pathogen detection, numerous alternative rapid m ...
DOI:
10.4315/0362-028X.JFP-15-516

6. Simultaneous Detection and Serotyping of Salmonellae by Immunomagnetic Separation and Label-Free Surface-Enhanced Raman Spectroscopy

Author:
Park, Bosoon,   et al.   ; Chen, Jing; Eady, Matthew;     Show all 3 Authors
Source:
Food analytical methods 2017 v.10 no.9 pp. 3181-3193
ISSN:
1936-9751
Subject:
Raman spectroscopy; Salmonella; agar; agglutination tests; bacteria; chemometrics; immunomagnetic separation; prediction; rapid methods; serotypes
Abstract:
... Current detection and characterization techniques for Salmonellae are time consuming, and rapid methods could benefit investigation and control of foodborne outbreaks. In this study, the potential of surface-enhanced Raman spectroscopy (SERS) in label-free detection and serotyping of Salmonella was evaluated. After immunomagnetic separation (IMS) and overnight culture, SERS spectra were collected ...
DOI:
10.1007/s12161-017-0870-x

7. Rapid and Early Detection of Salmonella Serotypes with Hyperspectral Microscopy and Multivariate Data Analysis

Author:
Park, Bosoon,   et al.   ; Eady, Matthew; Choi, Sun;     Show all 3 Authors
Source:
Journal of food protection 2015 v.78 no.4 pp. 668-674
ISSN:
0362-028X
Subject:
Salmonella; algorithms; bacteria; image analysis; least squares; microscopy; model validation; models; multivariate analysis; principal component analysis; rapid methods; serotypes; spectral analysis; wavelengths; Kentucky
Abstract:
... This study was designed to evaluate hyperspectral microscope images for early and rapid detection of Salmonella serotypes Enteritidis, Heidelberg, Infantis, Kentucky, and Typhimurium at incubation times of 6, 8, 10, 12, and 24 h. Images were collected by an acousto-optical tunable filter hyperspectral microscope imaging system with a metal halide light source measuring 89 contiguous wavelengths ev ...
DOI:
10.4315/0362-028X.JFP-14-366

8. Label-free SERS detection of Salmonella Typhimurium on DNA aptamer modified AgNR substrates

Author:
Park, Bosoon,   et al.   ; Chen, Jing; Huang, Yao-wen; Zhao, Yiping; Kwon, Yongkuk;     Show all 5 Authors
Source:
Journal of food measurement & characterization 2017 v.11 no.4 pp. 1773-1779
ISSN:
2193-4126
Subject:
DNA; Escherichia coli; Raman spectroscopy; Salmonella Typhimurium; bacteria; food pathogens; gastroenteritis; humans; nanorods; oligonucleotides; principal component analysis; silver
Abstract:
... A straightforward label-free method based on aptamer binding and surface enhanced Raman spectroscopy (SERS) has been developed for the detection of Salmonella Typhimurium, an important foodborne pathogen which causes gastroenteritis in both humans and animals. Surface of the SERS-active silver nanorod array substrates was modified with anti-S. Typhimurium DNA aptamer and mercaptohexanol, and react ...
DOI:
10.1007/s11694-017-9558-6

9. Automatic Counting and Classification of Bacterial Colonies Using Hyperspectral Imaging

Author:
Park, Bosoon,   et al.   ; Yoon, Seung-Chul; Lawrence, Kurt C.;     Show all 3 Authors
Source:
Food and bioprocess technology 2015 v.8 no.10 pp. 2047-2065
ISSN:
1935-5130
Subject:
Shiga toxin-producing Escherichia coli; absorbance; agar; algorithms; cell viability; color; computer software; hyperspectral imagery; image analysis; microbiology; pathogens; texture; wavelengths
Abstract:
... Detection and counting of bacterial colonies on agar plates is a routine microbiology practice to get a rough estimate of the number of viable cells in a sample. There have been a variety of different automatic colony counting systems and software algorithms mainly based on color or gray-scale pictures although manual counting is still common. In microbiology, identification of presumptive-positiv ...
DOI:
10.1007/s11947-015-1555-3

10. Identification of Staphylococcus species with hyperspectral microscope imaging and classification algorithms

Author:
Park, Bosoon,   et al.   ; Seo, Youngwook; Hinton, Arthur, Jr.; Yoon, Seung-Chul; Lawrence, Kurt C.;     Show all 5 Authors
Source:
Journal of food measurement & characterization 2016 v.10 no.2 pp. 253-263
ISSN:
2193-4126
Subject:
Gram-positive bacteria; Staphylococcus; data processing; discriminant analysis; filters; hyperspectral imagery; least squares; support vector machines; wavelengths
Abstract:
... Hyperspectral microscope imaging method was presented as a rapid and efficient tool to classify gram-positive bacteria species. The datacube (1024 × 1024 × 89) were obtained by hyperspectral microscope imaging system, which provided cell images between 450 and 800 nm wavelengths with 4-nm resolution, resulting in 89 contiguous spectral images that were acquired with an acousto-optic tunable filter ...
DOI:
10.1007/s11694-015-9301-0

11. Differentiation and classification of bacteria using vancomycin functionalized silver nanorods array based surface-enhanced Raman spectroscopy and chemometric analysis

Author:
Park, Bosoon,   et al.   ; Wu, Xiaomeng; Huang, Yao-Wen; Tripp, Ralph A.; Zhao, Yiping;     Show all 5 Authors
Source:
Talanta 2015 v.139 pp. 96-103
ISSN:
0039-9140
Subject:
Gram-negative bacteria; Raman spectroscopy; adenine; byproducts; cell walls; chemometrics; diagnostic techniques; nanorods; nanosilver; prediction; serotypes; silver; surface proteins; vancomycin
Abstract:
... Twenty seven different bacteria isolates from 12 species were analyzed using intrinsic surface-enhanced Raman scattering (SERS) spectra with recently developed vancomycin coated silver nanorod (VAN AgNR) substrates. The VAN AgNR substrates could generate reproducible SERS spectra of the bacteria with little to no interference from the environment or bacterial by-products as compared to the pristin ...
DOI:
10.1016/j.talanta.2015.02.045
CHORUS:
10.1016/j.talanta.2015.02.045

12. Surface enhanced Raman scattering (SERS) with biopolymer encapsulated silver nanosubstrates for rapid detection of foodborne pathogens

Author:
Park, Bosoon,   et al.   ; Sundaram, Jaya; Kwon, Yongkuk; Lawrence, Kurt C.;     Show all 4 Authors
Source:
International journal of food microbiology 2013 v.167 no.1 pp. 67-73
ISSN:
0168-1605
Subject:
Escherichia coli; Gram-positive bacteria; Listeria innocua; Salmonella typhimurium; Staphylococcus aureus; biopolymers; cell membranes; cell walls; chickens; food pathogens; mica; models; nanosilver; polyvinyl alcohol; principal component analysis; sampling; silver; silver nitrate; spectral analysis
Abstract:
... A biopolymer encapsulated with silver nanoparticles was prepared using silver nitrate, polyvinyl alcohol (PVA) solution, and trisodium citrate. It was deposited on a mica sheet to use as SERS substrate. Fresh cultures of Salmonella Typhimurium, Escherichia coli, Staphylococcus aureus and Listeria innocua were washed from chicken rinse and suspended in 10ml of sterile deionized water. Approximately ...
DOI:
10.1016/j.ijfoodmicro.2013.05.013
PubMed:
23806291

13. High-Resolution Single-Molecule Recognition Imaging of the Molecular Details of Ricin–Aptamer Interaction B

Author:
Park, Bosoon,   et al.   ; Wang, Bin; Guo, Cunlan; Zhang, Mengmeng; Xu, Bingqian;     Show all 5 Authors
Source:
The Journal of physical chemistry 2012 v.116 no.17 pp. 5316-5322
ISSN:
1520-5207
Subject:
DNA; antibodies; binding sites; computer simulation; gold; image analysis; lysine; oligonucleotides; ricin; toxicity
Abstract:
... We studied the molecular details of DNA aptamer–ricin interactions. The toxic protein ricin molecules were immobilized on a Au(111) surface using a N-hydroxysuccinimide (NHS) ester to specifically react with lysine residues located on the ricin B chains. A single ricin molecule was visualized in situ using the AFM tip modified with an antiricin aptamer. Computer simulation was used to illustrate t ...
DOI:
10.1021/jp301765n

14. Limitation of a localized surface plasmon resonance sensor for Salmonella detection

Author:
Park, Bosoon,   et al.   ; Fu, Junxue; Zhao, Yiping;     Show all 3 Authors
Source:
Sensors and actuators B: Chemical 2009 v.141 no.1 pp. 276
Subject:
biosensors; surface plasmon resonance; Salmonella; microbial detection; bacterial antigens; antibodies; gold; nanotechnology; food contamination; bacterial contamination; nanoparticles
Abstract:
... We have designed a localized surface plasmon resonance (LSPR) biosensor to perform whole cell detection of Salmonella using Au nanoparticles fabricated by an oblique angle deposition technique. The LSPR sensor shows a plasmon peak shift due to the Salmonella antigen and anti-Salmonella antibody reaction as verified by scanning electron microscopy and fluorescence microscopy. However, this shift is ...
Handle:
10113/44282
DOI:
10.1016/j.snb.2009.06.020

15. Nanorod-mediated surface plasmon resonance sensor based on effective medium theory

Author:
Park, Bosoon,   et al.   ; Fu, Junxue; Zhao, Yiping;     Show all 3 Authors
Source:
Applied optics 2009 v.48 no.23 pp. 4637
ISSN:
0003-6935
Subject:
surface plasmon resonance; sensors; nanotechnology; equations; mathematics and statistics; metals; films (materials); thickness; silver; optics; nanorods
Abstract:
... We investigate a nanorod-mediated surface plasmon resonance (SPR) sensor for sensitivity enhancement. The theoretical model containing an anisotropic layer of nanorod is investigated using four-layer Fresnel equations and the effective medium theory. The properties of the nanorod-mediated SPR curves versus the metal thin film thickness df , length l, and diameter D of the nanorod are studied in th ...
Handle:
10113/44515
DOI:
10.1364/AO.48.004637

16. Detection and differentiation of Salmonella serotypes using surface enhanced Raman scattering (SERS) technique

Author:
Park, Bosoon,   et al.   ; Sundaram, Jaya; Hinton, Arthur, Jr.; Lawrence, Kurt C.; Kwon, Yongkuk;     Show all 5 Authors
Source:
Journal of food measurement & characterization 2013 v.7 no.1 pp. 1-12
ISSN:
2193-4126
Subject:
Raman spectroscopy; Salmonella Enteritidis; Salmonella Infantis; Salmonella Typhimurium; biopolymers; cell membranes; cell walls; citrates; microbial detection; models; nanoparticles; polyvinyl alcohol; proteins; serotypes; silver; silver nitrate; spectral analysis; stainless steel
Abstract:
... This research was conducted to prove that developed silver biopolymer nanoparticle substrate for surface enhanced Raman scattering (SERS) technique could detect and differentiate three different serotypes of Salmonella. Nanoparticle was prepared by adding 100 mg of silver nitrate to a 2 % polyvinyl alcohol solution, then adding 1 % trisodium citrate to reduce silver nitrate and produce silver enca ...
DOI:
10.1007/s11694-012-9133-0

17. Development of Hyperspectral Imaging Technique for Salmonella Enteritidis and Typhimurium on Agar Plates

Author:
Park, Bosoon,   et al.   ; Seo, Young Wook; Yoon, Seung-Chul; Hinton, Arthur Jr.; Windham, William R.; Lawrence, K. C.;     Show all 6 Authors
Source:
Applied engineering in agriculture 2014 v.30 no.3 pp. 495-506
ISSN:
0883-8542
Subject:
Salmonella Enteritidis; Salmonella Typhimurium; agar; chicken carcasses; discriminant analysis; engineering; food contamination; foodborne illness; foods; humans; hyperspectral imagery; lysine; microorganisms; multivariate analysis; prediction; principal component analysis; screening; serotypes; support vector machines; xylose
Abstract:
... Salmonella is a common cause of foodborne disease resulting from the consumption of contaminated food products. Although a direct plating method is widely used for presumptive positive screening of pathogenic Salmonella colonies on agar plates, it is labor-intensive, time-consuming, and also prone to human errors. This article reports the development of a hyperspectral imaging technique for automa ...
DOI:
10.13031/aea.30.10435

18. Classification and Structural Analysis of Live and Dead Salmonella Cells Using Fourier Transform Infrared Spectroscopy and Principal Component Analysis

Author:
Park, Bosoon,   et al.   ; Sundaram, Jaya; Hinton, Arthur; Yoon, Seung Chul; Windham, William R.; Lawrence, Kurt C.;     Show all 6 Authors
Source:
Journal of agricultural and food chemistry 2012 v.60 no.4 pp. 991
ISSN:
1520-5118
Subject:
DNA; Fourier transform infrared spectroscopy; RNA; Salmonella enteritidis; Salmonella typhimurium; amides; bacteria; cell differentiation; computer software; crystals; data collection; foodborne infections; model validation; models; principal component analysis; proteins; serotypes; spectral analysis; wavelengths
Abstract:
... Fourier transform infrared spectroscopy (FT-IR) was used to detect Salmonella Typhimurium and Salmonella Enteritidis food-borne bacteria and to distinguish between live and dead cells of both serotypes. Bacteria cells were prepared in 10⁸ cfu/mL concentration, and 1 mL of each bacterium was loaded individually on the ZnSe attenuated total reflection (ATR) crystal surface (45° ZnSe, 10 bounces, and ...
Handle:
10113/59226
DOI:
10.1021/jf204081g
PubMed:
22257216

19. Single ricin detection by atomic force microscopy chemomechanical mapping

Author:
Park, Bosoon,   et al.   ; Chen, Guojun; Zhou, Jianfeng; Xu, Bingqian;     Show all 4 Authors
Source:
Applied physics letters 2009 v.95 no.4 pp. 043103 (3 p
Subject:
ricin; chemical residues; microscopy; spectroscopy
Abstract:
... The authors report on a study of detecting ricin molecules immobilized on chemically modified Au (111) surface by chemomechanically mapping the molecular interactions with a chemically modified atomic force microscopy (AFM) tip. AFM images resolved the different fold-up conformations of single ricin molecule as well as their intramolecule structure of A- and B-chains. AFM force spectroscopy study ...
Handle:
10113/44280
DOI:
10.1063/1.3190197

20. Motion compensated image processing and optimal parameters for egg crack detection using modified pressure

Author:
Park, Bosoon,   et al.   ; Yoon, Seung Chul; Lawrence, Kurt C.; Jones, Deana R.; Heitschmidt, Gerald W.;     Show all 5 Authors
Source:
Sensing and instrumentation for food quality and safety 2011 v.5 no.5 pp. 172-184
ISSN:
1932-7587
Subject:
algorithms; automatic detection; cameras; cracking; egg shell; eggs; image analysis
Abstract:
... Shell eggs with microcracks are often undetected during egg grading processes. In the past, a modified pressure imaging system was developed to detect eggs with microcracks without adversely affecting the quality of normal intact eggs. The basic idea of the modified pressure imaging system was to apply a short burst of vacuum within a transparent chamber in order to cause a momentary and forced op ...
DOI:
10.1007/s11694-012-9124-1