A5050799958- Gold and Silver Nanoparticles Synthesis and Applications
- Biosensors and Analytical Detection
- Microplastics and Plastic Pollution
- Nanoparticles: synthesis and applications
- Insect and Pesticide Research
- GaN-based semiconductor devices and materials
- Spectroscopy and Chemometric Analyses
- Advanced biosensing and bioanalysis techniques
- Pesticide Residue Analysis and Safety
- Spectroscopy Techniques in Biomedical and Chemical Research
- Nanocomposite Films for Food Packaging
- Semiconductor Lasers and Optical Devices
- Advanced Sensor and Energy Harvesting Materials
- Recycling and Waste Management Techniques
- Identification and Quantification in Food
- Advanced Nanomaterials in Catalysis
- 3D IC and TSV technologies
- Advanced optical system design
- Nanomaterials and Printing Technologies
- Advanced Chemical Sensor Technologies
- Electronic Packaging and Soldering Technologies
- Food composition and properties
- Pesticide and Herbicide Environmental Studies
- Listeria monocytogenes in Food Safety
- Mercury impact and mitigation studies
University of British Columbia
2022-2025
Tan Kah Kee Innovation Laboratory
2022-2025
Fuzhou University
2015-2025
United States Food and Drug Administration
2021-2025
Nankai University
2025
Food and Nutrition Service
2025
University of British Columbia Hospital
2024
University of Massachusetts Amherst
2016-2023
Center for Food Safety and Applied Nutrition
2021-2023
Sichuan University of Arts and Science
2022
Understanding of the penetration behaviors pesticides in fresh produce is great significance for effectively applying and minimizing pesticide residues food. There lack, however, an effective method that can measure penetration. Herein, we developed a novel real-time situ monitoring spinach leaves based on surface-enhanced Raman scattering (SERS) mapping. Taking advantage penetrative gold nanoparticles (AuNPs) as probes to enhance internalized signals situ, have successfully obtained...
Removal of pesticide residues from fresh produce is important to reduce exposure humans. This study investigated the effectiveness commercial and homemade washing agents in removal surface internalized apples. Surface-enhanced Raman scattering (SERS) mapping liquid chromatography tandem mass spectrometry (LC–MS/MS) methods were used determine different removing residues. Surface most effectively removed by sodium bicarbonate (baking soda, NaHCO3) solution when compared either tap water or...
Increasing concerns about global food safety and security demands innovative solutions, particularly in packaging technologies. This review paper investigates the advanced integration of natural colourimetric sensors with biopolymer-based materials, a focus on developments over past 5 years. These change colour response to environmental stimuli such as oxygen, temperature, pH relative humidity, intuitively indicating freshness safety. The emphasizes recent advancements using colourants,...
Microplastics have emerged as significant pollutants in terrestrial and marine ecosystems, with their accumulation posing a threat to human health through biomagnification along the food chain. Developing rapid, on-site, sensitive method for detecting microplastics agri-food environmental systems is important assessing minimizing potential risks. In this study, we developed novel surface-enhanced Raman spectroscopy (SERS) technique ultrasensitive detection of microplastics. Our innovative...
A model system consisting of a nonsystemic pesticide (ferbam), engineered gold nanoparticles (AuNPs) and plant tissue (tea leaves) was investigated using surface enhanced Raman spectroscopy (SERS). Ferbam has no ability by itself to penetrate into tea leaves. When AuNPs were placed with ferbam onto the leaves, however, SERS signal ferbam-AuNPs complex observed inside Within 1 h, rapidly penetrated leaf depth approximately 190 μm, about (1)/3 (1)/2 leaf's thickness. The rate penetration...
Adenosine plays a crucial role in the regulation of physiological activity various tissues and organs. As adenosine is possible biomarker for cancer, determination its level presents demanding task deeply monitoring progress diseases. Through synthesis Fe3O4/Au/Ag nanocomposites weaved stabilized by phytic acid salt, we develop magnetically assisted surface-enhanced Raman scattering (SERS) protocol to determine trace urine samples from both lung cancer patients health human. The magnetic...
Understanding the behavior of pesticide translocation is significant for effectively applying pesticides and reducing exposures from treated plants. Herein, we applied surface enhanced Raman spectroscopy (SERS) real-time monitoring in tomato plant tissues, including leaves flowers, following root exposure hydroponic soil systems. Various concentrations systemic pesticide, thiabendazole, was introduced into systems used growing At selected time intervals, flowers were picked thiabendazole...
It is a big challenge to monitor pathogens in food with high selectivity. In this study, we reported an ultrasensitive method for
The accumulation of micro/nanoplastics (MNPs) in ecosystems poses tremendous environmental risks for terrestrial and aquatic organisms. Designing rapid, field-deployable, sensitive devices assessing the potential MNPs pollution is critical. However, current techniques detection have limited effectiveness. Here, we design a wireless portable device that allows sensitive, on-site MNPs, followed by remote data processing via machine learning algorithms quantitative fluorescence imaging. We...
Increasing accumulation of nanoplastics across ecosystems poses a significant threat to both terrestrial and aquatic life. Surface-enhanced Raman scattering (SERS) is an emerging technique used for detection. However, the identification classification using SERS faces challenges regarding sensitivity accuracy as are sparsely dispersed in environment. Metal-phenolic networks (MPNs) have potential rapidly concentrate separate various types sizes nanoplastics. combined with machine learning may...
Amino groups are abundant in both natural and synthetic molecules, offering highly accessible sites for modifying native biorelevant molecules. Despite significant progress with more reactive thiol groups, methods connecting two amino reversible linkers bioconjugation applications remain elusive. Herein, we report the use of oxidative decarboxylative condensation glyoxylic acid to crosslink alkyl amines via a compact formamidine linkage, applicable intra‐ intermolecular contexts. This...
Abstract Understanding pesticide penetration is important for effectively applying pesticides and in reducing exposures from food. This study aims to evaluate multiclass systemic nonsystemic 3 representative fresh produce (apples, grapes, spinach leaves). Surface‐enhanced Raman scattering mapping was applied situ real‐time tracking of over time. The results show that 100 mg/L pesticides, thiabendazole acetamiprid, penetrated more rapidly deeply with maximum depth around 220 μm after 48‐h...