desktop sem Search Results


phenom prox sem  (Phenom-World ltd)
90
Phenom-World ltd phenom prox sem
Phenom Prox Sem, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/10__1002_slash_app__55166-104-48-51?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
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desktop sem system  (Hamamatsu)
90
Hamamatsu desktop sem system
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Desktop Sem System, supplied by Hamamatsu, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pmc08962435-204-21-34?v=Hamamatsu
Average 90 stars, based on 1 article reviews
desktop sem system - by Bioz Stars, 2026-07
90/100 stars
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desktop-sem  (Phenom-World ltd)
90
Phenom-World ltd desktop-sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Desktop Sem, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pm37175457-249-10-11?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
desktop-sem - by Bioz Stars, 2026-07
90/100 stars
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this sem microscope  (Phenom-World ltd)
90
Phenom-World ltd this sem microscope
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
This Sem Microscope, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pmc11012491-107-1-3?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
this sem microscope - by Bioz Stars, 2026-07
90/100 stars
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desktop sem prox premium  (Phenom-World ltd)
90
Phenom-World ltd desktop sem prox premium
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Desktop Sem Prox Premium, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/us10324388-712-34-40?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
desktop sem prox premium - by Bioz Stars, 2026-07
90/100 stars
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pheom prox desktop sem  (Phenom-World ltd)
90
Phenom-World ltd pheom prox desktop sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Pheom Prox Desktop Sem, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pm37708927-74-13-17?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
pheom prox desktop sem - by Bioz Stars, 2026-07
90/100 stars
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nanoeye desktop mini-sem  (SEC Co Ltd)
90
SEC Co Ltd nanoeye desktop mini-sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Nanoeye Desktop Mini Sem, supplied by SEC Co Ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/10__3144_slash_expresspolymlett__2011__48-46-16-19?v=SEC+Co+Ltd
Average 90 stars, based on 1 article reviews
nanoeye desktop mini-sem - by Bioz Stars, 2026-07
90/100 stars
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phenum prox desktop sem  (Phenom-World ltd)
90
Phenom-World ltd phenum prox desktop sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Phenum Prox Desktop Sem, supplied by Phenom-World ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pm28473225-72-18-22?v=Phenom-World+ltd
Average 90 stars, based on 1 article reviews
phenum prox desktop sem - by Bioz Stars, 2026-07
90/100 stars
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phenom xl desktop sem  (Nanoscience Instruments)
86
Nanoscience Instruments phenom xl desktop sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Phenom Xl Desktop Sem, supplied by Nanoscience Instruments, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/10__3390_slash_w17192843-70-12-16?v=Nanoscience+Instruments
Average 86 stars, based on 1 article reviews
phenom xl desktop sem - by Bioz Stars, 2026-07
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phenom g2 pro desktop sem  (Philips Healthcare)
86
Philips Healthcare phenom g2 pro desktop sem
Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients <t>using</t> <t>qRT-PCR</t> and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy <t>(SEM)</t> using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.
Phenom G2 Pro Desktop Sem, supplied by Philips Healthcare, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/desktop+sem/pmc05821410-30-7-1?v=Philips+Healthcare
Average 86 stars, based on 1 article reviews
phenom g2 pro desktop sem - by Bioz Stars, 2026-07
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Image Search Results


Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients using qRT-PCR and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy (SEM) using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.

Journal: Biomedicines

Article Title: Highly Sensitive and Quantitative Diagnosis of SARS-CoV-2 Using a Gold/Platinum Particle-Based Lateral Flow Assay and a Desktop Scanning Electron Microscope

doi: 10.3390/biomedicines10020447

Figure Lengend Snippet: Comparison of lateral flow assay (LFA) detection methods for SARS-CoV-2 using clinical samples: ( a ) The accuracy of visual diagnosis was assessed by testing SARS-CoV-2-negative and -positive patients using qRT-PCR and the antigen solutions from the same patients, and then calculated the area under the curve (AUC) for the receiver operating characteristic (ROC) curve. ( b ) Detection via scanning electron microscopy (SEM) using the test line (TL)/background area (BA) ratio. A TL/BA ratio of 1.975 was chosen as the threshold cut-off value based on the ROC curve study to differentiate SARS-CoV-2 infection. ( c ) TL/BA ratio (log10) and cycle threshold (Ct) scatter plot. Triple-positive results (“visual detection-positive”, “SEM detection-positive”, and “qRT-PCR detection-positive”) are represented with blue dots, double-positive results (“SEM detection-positive” and “qRT-PCR detection-positive”) are represented with red dots, and single-positive results (“qRT-PCR detection-positive”) are represented with green dots. The approximate slope is indicated by the blue dotted line.

Article Snippet: Although it is difficult to accurately compare the cost because of the differences in equipment and kits, the cost of the desktop SEM system is approximately the same as the real-time PCR machine in Hamamatsu University Hospital.

Techniques: Comparison, Lateral Flow Assay, Biomarker Discovery, Quantitative RT-PCR, Electron Microscopy, Infection