Preparation of green colorimetric pH sensor using Humulus lupulus L. (common hop) biomolecular extract for sweat monitoring

Novel smart cotton diagnostic assay was developed toward onsite sensing of sweat pH variations for possible medical applications such as drug test and healthcare purposes. Humulus lupulus L. extract was obtained according to previously reported procedure. As reported by high‐performance liquid chrom...

Full description

Saved in:
Bibliographic Details
Published in:Luminescence (Chichester, England) England), 2023-08, Vol.38 (8), p.1431-1439
Main Authors: Alorabi, Ali Q., Alessa, Hussain, Alamrani, Nasser A., Alluhaybi, Ahmad A., Al‐Ahmed, Zehbah A., Sayqal, Ali, Abumelha, Hana M., El‐Metwaly, Nashwa M.
Format: Article
Language:English
Subjects:
Absorption spectra
Aluminium
Aluminum
Aluminum sulfate
Assaying
Cellulose
Cellulose fibers
Charge transfer
Chromatography
Chromophores
colorimetric detector
Colorimetry
Cotton
cotton fabric
Defects
Flavonoids - chemistry
Halochromism
High performance liquid chromatography
HPLC
Humulus - chemistry
Humulus lupulus
Humulus lupulus L
Hydrogen-Ion Concentration
Liquid chromatography
Mordant dyes
Nanoparticles
Permeability
pH effects
pH sensors
Plant Extracts - chemistry
Potassium
Sweat
Sweat - chemistry
sweat monitoring
Xanthohumol
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Novel smart cotton diagnostic assay was developed toward onsite sensing of sweat pH variations for possible medical applications such as drug test and healthcare purposes. Humulus lupulus L. extract was obtained according to previously reported procedure. As reported by high‐performance liquid chromatography (HPLC), the extract demonstrated the presence of hop acids, prenylchalcones, and prenylflavanones, which is responsible for the colorimetric changes. The extract was applied to cellulose fibers employing potassium aluminum sulfate as mordant. This was observed by the formation of mordant/xanthohumol nanoparticles onto cotton surface. The absorption spectra and CIE (Commission Internationale de l'Eclairage) Lab screening of the prepared cotton assay showed colorimetric changes in association with hypsochromic shift from 600 nm to 433 nm upon exposure to sweat simulant fluid (pH 
ISSN:1522-7235
1522-7243
DOI:10.1002/bio.4511