Results 31 to 40 of about 5,100 (188)

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

Beilstein Journal of Nanotechnology, 2020
This paper proposes the selective and ultrasensitive detection of Cd(II) ions using a cysteamine-functionalized microcantilever-based sensor with cross-linked ᴅʟ-glyceraldehyde (DL-GC).
Dinesh Rotake, Anand Darji, Nitin Kale
doaj   +1 more source

Investigation of Sodium Benzoate and Potassium Sorbate in Anti-Diabetic Herbal Drugs

Journal of Applied Science & Process Engineering, 2022
The objective of the study was to assess sodium benzoate and potassium sorbate in some anti-diabetic herbal drugs (ADHDs) collected from local markets using UV-Vis spectrophotometric method.
Nazmul Islam, Md. Omar Faruque, Rausan Zamir   +2 more
doaj   +1 more source

LIMIT OF DETECTION (LOD) AND LIMIT OF QUANTITATION (LOQ) OF DR 1900 SPECTROPHOTOMETER FOR DYES ANALYSIS

Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Dyes is not easily degraded in the environment. It can be causing environmental pollution. The concentration of these dyes must be monitored when using it in a process. The most common method to measuring dye’s concentration is spectrometry, such as using dr 1900 spectrophotometer.
null Wijayanti, Siti Rochmah
openaire   +1 more source

A comparative study of Linear range, Sensitivity (S) and Limit of Detection (LOD) for two metal oxide nanocomposite enzyme based biosensors PANI/ZnO/Urease and PANI/MnO2/Urease for the detection of heavy metal ion Hg (ii) in water

, 2023
Out of all the environmental issues, water pollution by heavy metal ion such as Mercury, Lead Arsenic, Cadmium, Chromium etc most important to be solved. Biosensors present an efficient alternative technique which can lead to the low cost heavy metal ion detector along with the features such as no need of special training for an operator, easily ...
Ashish P. Mahajan, Atul P. Birajdar
openaire   +2 more sources

Sensitivity and Limit of Detection of biosensors based on ring resonators

Sensing and Bio-Sensing Research, 2015
In this work, we present a study of the Sensitivity (S) and Limit of Detection (LOD) of microring based photonic biosensors as a function of the waveguide composition and dimensions.
Romain Guider, Davide Gandolfi, Tatevik Chalyan, Laura Pasquardini, Alina Samusenko, Cecilia Pederzolli, Georg Pucker, Lorenzo Pavesi   +7 more
doaj   +1 more source

Improving detection limit of non-dispersive infrared gas sensor with high precision by matched filtering

International Journal of Optomechatronics
Non-dispersive infrared (NDIR) gas sensors have the disadvantage of high limit of detection (LOD), and the signal-to-noise ratio (SNR) has a significant impact on LOD.
An Nie, Xiangyang Wei, Qiang He, Junya Wang, Zheng You   +4 more
doaj   +1 more source

VALIDATION OF SPECTROPHOTOMETRIC METHOD TO QUANTIFY QUERCETIN IN THE IN VITRO DISSOLUTION STUDY OF SELF NANO-EMULSIFYING DRUG DELIVERY SYSTEM (SNEDDS)

Jurnal Farmasi Sains dan Praktis, 2022
Quercetin possesses low solubility and decreases oral bioavailability. One way to increase the bioavailability of quercetin is by formulating a self-nanoemulsifying drug delivery system (SNEDDS).
Wildan Khairi Muhtadi, Ferdy Firmansyah, Tiara Tri Agustini, Pricillia Rahayu, Siti Arifah Fitriyanti, Rodhia Ulfa   +5 more
doaj   +1 more source

Clinical performance of the urine‐based TERT promoter AbsoluteQ Digital PCR for non‐invasive detection of bladder cancer

Molecular Oncology, EarlyView.
A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel, Izabela Kubiak, Lena Rutkowska, Żaneta Kasprzyk, Łukasz Kępczyński, Michał Bednarek, Dariusz Sobieraj, Jacek Wilkosz, Piotr Kania, Adam Jędrzejczyk, Bogdan Kałużewski, Agnieszka Gach, Tadeusz Kałużewski   +12 more
wiley   +1 more source

GAD65 Antibody ELISA With Extended Reportable Range: Validation and Guidance for Neurological Practice

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To (1) validate GAD65‐ELISA detection and quantification for type 1 diabetes mellitus and autoimmune neurological diagnoses, (2) correlate ELISA results (reference range < 5 IU/mL) with established radioimmunoprecipitation assay (RIA; ≤ 0.02 nmol/L), and (3) define ELISA clinical utility and pitfalls.
Andrew McKeon, Dana Olofson, Diana Anissian, Divyanshu Dubey, Eoin P. Flanagan, Max C. Herman, Sarosh R. Irani, Daniel H. Lachance, Maria A. Willrich, Sean Pittock, John R. Mills, Anastasia Zekeridou   +11 more
wiley   +1 more source

Double Competitive Immunodetection of Small Analyte: Realization for Highly Sensitive Lateral Flow Immunoassay of Chloramphenicol

Biosensors, 2022
A new scheme of reagents interaction for lateral flow immunoassay (LFIA) is proposed, which combines the features of competitive and sandwich assay and provides highly sensitive detection of low-molecular-weight analytes.
Dmitriy V. Sotnikov, Lyubov V. Barshevskaya, Anastasia V. Bartosh, Anatoly V. Zherdev, Boris B. Dzantiev   +4 more
doaj   +1 more source