A5042200817- Spectroscopy Techniques in Biomedical and Chemical Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Spectroscopy and Chemometric Analyses
- Plasmonic and Surface Plasmon Research
- Quantum Dots Synthesis And Properties
- Laser-induced spectroscopy and plasma
- Health and Well-being Studies
- Mental Health Research Topics
- Analytical chemistry methods development
- Digital Holography and Microscopy
- Ophthalmology and Visual Health Research
- Mass Spectrometry Techniques and Applications
- Optimism, Hope, and Well-being
- Psychological Treatments and Assessments
- Nanocluster Synthesis and Applications
- Advanced Fluorescence Microscopy Techniques
- Cultural Differences and Values
- Bee Products Chemical Analysis
- Arsenic contamination and mitigation
- Insect and Pesticide Research
- Analytical Methods in Pharmaceuticals
- Protein Interaction Studies and Fluorescence Analysis
- Mercury impact and mitigation studies
- Death Anxiety and Social Exclusion
- Phytochemistry and Biological Activities
Shahid Beheshti University
2014-2024
Institute for Experimental Endocrinology and Oncology
2023-2024
National Research Council
2024
Institute of Experimental Endocrinology of the Slovak Academy of Sciences
2023
National Academies of Sciences, Engineering, and Medicine
2023
University of Tehran
2017-2018
Objective: This study aimed at investigating the mediating role of perceived stress in anticipation anxiety and depression on facing ultimate concerns (death, loneliness, freedom, meaningfulness). Method: A total 389 students from Ferdowsi University Mashhad participated this 2017-18. The participants were selected using random sampling. data collected subscales depression, anxiety, scale (DASS), Death Anxiety Scale (DAS), third edition Loneliness UCLA (UCLA-LS), subscale meaning life...
The Moderating Role of Resilience in the Relationship Between Early Maladaptive Schemas and Anxiety Depression Symptoms Among Firefighters
Laser-induced fluorescence and Raman spectroscopy are used for the investigation of different genotypes Thymus daenensis native to Ilam province Iran. Different T. essential oils, labeled T1 through T7, possess slight differences with regard composition thymol. The gas chromatography-mass spectrometry (GC-MS) method is performed determine concentration each constituent as a reference method. spectra concentrations pure thymol dissolved in hexane standard samples obtained via laboratory...
A highly efficient Raman-to-fluorescence ratio of Rhodamine 6G is obtained by means 532 nm laser wavelength, which in close proximity the dye's absorption maximum. Closely packed, gap-filled self-assembled monolayers silver nanoparticles were produced to observe Raman signals 6G. Two mechanisms contribute detect fluorescent sample: surface-enhanced scattering (SERS) and nanomaterial surface energy transfer (NSET). Self-assembled with different coverage densities also those filled probe...
Assembling metal nanoparticles to provide strong electric field hot spots in their gap spaces for surface-enhanced Raman scattering (SERS) is a great challenge. Therefore, the optimization of assembly parameters at heart design and fabrication SERS substrates. Herein, we experimentally demonstrate activity hierarchical assembled size-asymmetric heterodimers (HDs) silver (AgNPs) unveil effect size-asymmetry enhancement factors (EFs). The HDs show an optimum configuration which maximum EF...
A rapid, cost-effective, and sample-preparation-free approach is proposed for the quantitative detection of arsenic in drinking water, using surface-enhanced Raman spectroscopy (SERS). This fabrication entailed comprehensive optimization chemically synthesized silver colloidal nanoparticles, focusing on parameters such as centrifugation time speed to attain maximal nanoparticle concentration while mitigating interference from trisodium citrate other chemical agents. Subsequently, SERS...
In this study, we utilized polarization-sensitive holotomography and Raman imaging to analyze prostate healthy (PNT2) cancer (PC3) cells treated with glucose. After 48-hour incubation, distinct morphological differences were observed in cells, including changes volume, number, refractive index of lipid droplets (LDs). confirmed the glucose uptake these LDs. Cancer exhibited larger more numerous LDs, higher mean refractive-index birefringence, compared cells. The study achieved over 90%...
In this study, we report the results of two non-invasive optical methods, Raman microscopy (RM) and polarization-sensitive digital holographic imaging (PSDHI), for distinguishing prostate cancer cells from healthy ones. RM reveals metabolize glucose faster, storing it as fatty acids cholesteryl esters in lipid droplets (LDs). On other hand, PSDHI shows significant morphological changes LDs glucose-incubated cells, including number, volume, refractive index. High birefringence under...
Predicting Anxiety Symptoms Based on Confrontation With Existential Issues: The Moderating Role of Defense Mechanisms
Nanoparticle-enhanced laser-induced breakdown spectroscopy and Tag-LIBS are two approaches that have been shown to significantly enhance LIBS sensitivity specificity. In an effort combine both of these approaches, we initiated a study on the effect presence Silver nanoparticle concentrations Europium (Eu) Ytterbium (Yb) signals. We observe signal enhancement emission lines about 10 12 times for lines. This shows enhanced differently; neutral ionized species while only species. Additionally,...
Abstract Background Bipolar disorder is generally studied under the biological paradigm and hence experiential structure in patients less investigated. Currents study aims to explore mood changes with bipolar through building blocks of their structure: lived space time. Methods This was conducted using qualitative research methods. Data were collected analyzed interpretive phenomenological analysis (IPA) framework. 13 Iranian individuals diagnosed I II selected 2020 purposive sampling. We an...