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Kumar R, Bhardwaj VK. Microwave Synthesis of Fluorescent Carbon Quantum dots from Araucaria Heterophylla Gum: Application in Drug Detection. J Fluoresc 2024:10.1007/s10895-024-03874-8. [PMID: 39126608 DOI: 10.1007/s10895-024-03874-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
This study employed a green microwave synthesis technique to produce carbon quantum dots (CQDs) from araucaria heterophylla gum extract. The produced CQDs emit a distinct blue fluorescent light, contributing a remarkable quantum yield of 14.69%. Their average particle size measures at 1.62 ± 0.39 nm. Furthermore, these CQDs demonstrate excellent water solubility and maintain high fluorescence stability despite ionic strength, pH and time variations. Moreover, we present here for the first time that the synthesized CQDs demonstrate a rapid, exceptionally sensitive, and discerning fluorescence quenching phenomenon (IFE) concerning Cefprozil (CPR). The fluorescent probe was sensitive and specific with good linear relationships for CPR in the 0-18 µM range. The limit of detection for relationships for CPR was 2.51 µM. This study provides novel opportunities for producing high-quality luminescent CQDs that meet the requirements for various biological and environmental applications.
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Affiliation(s)
- Rohitash Kumar
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India
| | - Vimal K Bhardwaj
- Department of Chemistry, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
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Scadding GK, McDonald M, Backer V, Scadding G, Bernal-Sprekelsen M, Conti DM, De Corso E, Diamant Z, Gray C, Hopkins C, Jesenak M, Johansen P, Kappen J, Mullol J, Price D, Quirce S, Reitsma S, Salmi S, Senior B, Thyssen JP, Wahn U, Hellings PW. Pre-asthma: a useful concept for prevention and disease-modification? A EUFOREA paper. Part 1-allergic asthma. FRONTIERS IN ALLERGY 2024; 4:1291185. [PMID: 38352244 PMCID: PMC10863454 DOI: 10.3389/falgy.2023.1291185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/26/2023] [Indexed: 02/16/2024] Open
Abstract
Asthma, which affects some 300 million people worldwide and caused 455,000 deaths in 2019, is a significant burden to suffers and to society. It is the most common chronic disease in children and represents one of the major causes for years lived with disability. Significant efforts are made by organizations such as WHO in improving the diagnosis, treatment and monitoring of asthma. However asthma prevention has been less studied. Currently there is a concept of pre- diabetes which allows a reduction in full blown diabetes if diet and exercise are undertaken. Similar predictive states are found in Alzheimer's and Parkinson's diseases. In this paper we explore the possibilities for asthma prevention, both at population level and also investigate the possibility of defining a state of pre-asthma, in which intensive treatment could reduce progression to asthma. Since asthma is a heterogeneous condition, this paper is concerned with allergic asthma. A subsequent one will deal with late onset eosinophilic asthma.
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Affiliation(s)
- G. K. Scadding
- Department of Allergy & Rhinology, Royal National ENT Hospital, London, United Kingdom
- Division of Immunity and Infection, University College, London, United Kingdom
| | - M. McDonald
- The Allergy Clinic, Blairgowrie, Randburg, South Africa
| | - V. Backer
- Department of Otorhinolaryngology, Head & Neck Surgery, and Audiology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | - G. Scadding
- Allergy, Royal Brompton Hospital, London, United Kingdom
| | - M. Bernal-Sprekelsen
- Head of ORL-Deptartment, Clinic Barcelona, Barcelona, Spain
- Chair of ORL, University of Barcelona, Barcelona, Spain
| | - D. M. Conti
- The European Forum for Research and Education in Allergy and Airway Diseases Scientific Expert Team Members, Brussels, Belgium
| | - E. De Corso
- Otolaryngology Head and Neck Surgery, A. Gemelli University Hospital Foundation IRCCS, Rome, Italy
| | - Z. Diamant
- Department of Respiratory Medicine & Allergology, Institute for Clinical Science, Skane University Hospital, Lund University, Lund, Sweden
- Department of Respiratory Medicine, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
- Department Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Deptarment of Microbiology Immunology & Transplantation, KU Leuven, Catholic University of Leuven, Leuven, Belgium
| | - C. Gray
- Paediatric Allergist, Red Cross Children’s Hospital and University of Cape Town, Cape Town, South Africa
- Kidsallergy Centre, Cape Town, South Africa
| | - C. Hopkins
- Department of Rhinology and Skull Base Surgery, Guy’s and St Thomas’ Hospital NHS Foundation Trust, London, United Kingdom
| | - M. Jesenak
- Department of Clinical Immunology and Allergology, University Teaching Hospital in Martin, Martin, Slovakia
- Department of Paediatrics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovakia
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovakia
| | - P. Johansen
- Department of Dermatology, University of Zurich, Zurich, Switzerland
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - J. Kappen
- Department of Pulmonology, STZ Centre of Excellence for Asthma, COPD and Respiratory Allergy, Franciscus Gasthuis & Vlietland, Rotterdam, Netherlands
| | - J. Mullol
- Rhinology Unit and Smell Clinic, ENT Department, Hospital Clínic, FRCB-IDIBAPS, Universitat de Barcelona, CIBERES, Barcelona, Spain
| | - D. Price
- Observational and Pragmatic Research Institute, Singapore, Singapore
- Division of Applied Health Sciences, Centre of Academic Primary Care, University of Aberdeen, Aberdeen, United Kingdom
| | - S. Quirce
- Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - S. Reitsma
- Department of Otorhinolarynogology and Head/Neck Surgery, Amsterdam University Medical Centres, Location AMC, University of Amsterdam, Amsterdam, Netherlands
| | - S. Salmi
- Department of Otorhinolaryngology, Kuopio University Hospital and University of Eastern Finland, Kuopio, Finland
- Department of Allergy, Inflammation Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - B. Senior
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - J. P. Thyssen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - U. Wahn
- Former Head of the Department for Pediatric Pneumology and Immunology, Charite University Medicine, Berlin, Germany
| | - P. W. Hellings
- Department of Otorhinolaryngology-Head and Neck Surgery, University Hospitals, Leuven, Belgium
- Laboratory of Allergy and Clinical Immunology, University Hospitals Leuven, Leuven, Belgium
- Upper Airways Research Laboratory, Department of Head and Skin, Ghent University, Ghent, Belgium
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