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

Autor: Alorabi AQ; Department of Chemistry, Faculty of Sciences, Albaha University, Al Bahah, Saudi Arabia., Alessa H; Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia., Alamrani NA; Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia., Alluhaybi AA; Department of Chemistry, College of Sciences and Arts, King Abdulaziz University, Rabigh, Saudi Arabia., Al-Ahmed ZA; Department of Chemistry, College of Sciences and Art, Dhahran Aljounb, King Khalid University, Abha, Saudi Arabia., Sayqal A; Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia., Abumelha HM; Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia., El-Metwaly NM; Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia.; Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2023 Aug; Vol. 38 (8), pp. 1431-1439. Date of Electronic Publication: 2023 May 02.
DOI: 10.1002/bio.4511
Abstrakt: 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 < 7). The biochromic activity of the xanthohumol-finished cotton depends mainly on the halochromic performance of the xanthohumol chromophore to show a colorimetric switch from yellow to white owing to intramolecular charge transfer in the xanthohumol molecule. No substantial defects were detected in gas-permeability and stiffness of the treated fabrics. Satisfactory fastness was approved for the xanthohumol-dyed diagnostic cotton assay.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: