0000000000994730

AUTHOR

Ahmed Alsadig

0000-0001-8601-7345

showing 2 related works from this author

Plasmonic Biosensors for the Detection of Lung Cancer Biomarkers: A Review

2021

Lung cancer is the most common and deadliest cancer type globally. Its early diagnosis can guarantee a five-year survival rate. Unfortunately, application of the available diagnosis methods such as computed tomography, chest radiograph, magnetic resonance imaging (MRI), ultrasound, low-dose CT scan, bone scans, positron emission tomography (PET), and biopsy is hindered due to one or more problems, such as phenotypic properties of tumours that prevent early detection, invasiveness, expensiveness, and time consumption. Detection of lung cancer biomarkers using a biosensor is reported to solve the problems. Among biosensors, optical biosensors attract greater attention due to being ultra-sensi…

Materials sciencemedicine.diagnostic_testChip fabricationtechnology industry and agriculturebiomarkersNanotechnologyQD415-436plasmonic biosensorsmedicine.diseaselocalised surface plasmon resonanceBiochemistryAnalytical Chemistrylung cancerMolecular levelPositron emission tomographysurface enhanced Raman scatteringWide dynamic rangemedicinePhysical and Theoretical ChemistrySurface plasmon resonanceLung cancerBiosensorsurface plasmon resonancePlasmonChemosensors
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Acetone Vapor-Sensing Properties of Chitosan-Polyethylene Glycol Using Surface Plasmon Resonance Technique

2020

To non-invasively monitor and screen for diabetes in patients, there is need to detect low concentration of acetone vapor in the range from 1.8 ppm to 5 ppm, which is the concentration range of acetone vapor in diabetic patients. This work presents an investigation for the utilization of chitosan-polyethylene glycol (PEG)-based surface plasmon resonance (SPR) sensor in the detection of trace concentration acetone vapor in the range of breath acetone in diabetic subjects. The structure, morphology, and elemental composition of the chitosan-PEG sensing layer were characterized using FTIR, UV-VIS, FESEM, EDX, AFM, and XPS methods. Response testing was conducted using low concentration of aceto…

acetone vapor detectionMaterials sciencePolymers and Plasticsnon-invasivesurface plasmon resonance sensor02 engineering and technologyPolyethylene glycol01 natural sciencesArticlelcsh:QD241-441Propanolchemistry.chemical_compoundlcsh:Organic chemistryX-ray photoelectron spectroscopyAcetoneFourier transform infrared spectroscopySurface plasmon resonanceDetection limitdiabetes010401 analytical chemistrytechnology industry and agricultureGeneral Chemistry021001 nanoscience & nanotechnologychitosan-polyethylene glycol film0104 chemical scienceschemistryMethanol0210 nano-technologyNuclear chemistryPolymers
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