Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
We demonstrate the use of white-light spectral interferometry as an effective technique involving only linear optical interactions and a partially coherent light source to measure the complex transmission response function of optical resonance and to determine the corresponding variation in the refractive index relative to a reference. We also discuss experimental arrangements to increase the accuracy and sensitivity of the technique. The superiority of the technique over single-beam absorption measurements is demonstrated by the accurate determination of the response function of the chlorophyll- solution. The technique is then applied to chlorophyll- solutions of varying concentrations and gold nanocolloids to characterize inhomogeneous broadening. Results on the inhomogeneity of gold nanocolloids are also supported by transmission electron micrographs, showing distributions of the size and shape of the constituent gold nanorods.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10125346 | PMC |
| http://dx.doi.org/10.1021/acsnanoscienceau.2c00014 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Integrating AI with Advanced Hyperspectral Imaging for Enhanced Classification of Selected Gastrointestinal Diseases.
Bioengineering (Basel)
August 2025
Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chia Yi 62102, Taiwan.
Ulcerative colitis, polyps, esophagitis, and other gastrointestinal (GI) diseases significantly impact health, making early detection crucial for reducing mortality rates and improving patient outcomes. Traditional white light imaging (WLI) is commonly used during endoscopy to identify abnormalities in the gastrointestinal tract. However, insufficient contrast often limits its effectiveness, making it challenging to distinguish between healthy and unhealthy tissues, particularly when identifying subtle mucosal and vascular abnormalities.
View Article and Find Full Text PDFEnhancing Early GI Disease Detection with Spectral Visualization and Deep Learning.
Bioengineering (Basel)
July 2025
Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chia-Yi 62102, Taiwan.
Timely and accurate diagnosis of gastrointestinal diseases (GIDs) remains a critical bottleneck in clinical endoscopy, particularly due to the limited contrast and sensitivity of conventional white light imaging (WLI) in detecting early-stage mucosal abnormalities. To overcome this, this research presents Spectrum Aided Vision Enhancer (SAVE), an innovative, software-driven framework that transforms standard WLI into high-fidelity hyperspectral imaging (HSI) and simulated narrow-band imaging (NBI) without any hardware modification. SAVE leverages advanced spectral reconstruction techniques, including Macbeth Color Checker-based calibration, principal component analysis (PCA), and multivariate polynomial regression, achieving a root mean square error (RMSE) of 0.
View Article and Find Full Text PDFLight Color Influences Incubation Characteristics, Postnatal Growth, and Stress Physiology with a Lack of Expression Changes of Myf5 and Myf6 Genes in Gerze Native Chicken.
Animals (Basel)
August 2025
Department of Animal Science, Faculty of Agriculture, Ondokuz Mayis University, 55139 Samsun, Türkiye.
Light exposure during incubation can influence hatching characteristics, post-hatch growth, and physiological responses in poultry. This study aimed to evaluate the impact of pre-development exposure to different cold-colored light emitting diode (LED) lights on incubation characteristics, growth performance, stress physiology, and myogenic regulatory factors (MRFs) expression level in the slow-growing native Gerze chicken breed. Fertilized eggs were incubated under red, green, white, or dark conditions.
View Article and Find Full Text PDFTailoring electronic and optoelectronic properties of 2D-SiC defects and doping: a first-principles study toward efficient white light-emitting diodes.
RSC Adv
August 2025
Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology Dhaka 1205 Bangladesh
The advent of graphene catalyzed extensive exploration into two-dimensional (2D) materials, owing to their extraordinary electronic, mechanical, and optical properties. Among these, two-dimensional silicon carbide (2D-SiC) has emerged as a compelling candidate for next-generation optoelectronic devices due to its inherent planar structure, robust mechanical strength, high exciton binding energy, high thermal stability, and wide band gap. In this work, we present a comprehensive first-principles investigation into the effects of intrinsic point defects including vacancies and antisites as well as substitutional doping with various single foreign atom (, As, Bi, Ga, Ge, In, P, Pb, Sb, Sn, Te, Ca, K, Mg) on the electronic and optical properties of 2D-SiC.
View Article and Find Full Text PDFLight-triggered molecular mechanotherapy of tumor using membrane-mimicking conjugated oligoelectrolytes.
Sci Adv
August 2025
Institute of Polymer Optoelectronic Materials and Devices, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou
A class of light-mediated mechanotherapeutic agents was developed on the basis of conjugated oligoelectrolytes (COEs), which mimic the topology of lipid membranes and intrinsically exhibit excellent biocompatibility. Low-dose white light irradiation (20 milliwatts per square centimeter for 10 minutes) substantially decreased the half-maximal inhibitory concentration of the optimized COE against A549 cancer cells from more than 256 to 0.6 micromolar.
View Article and Find Full Text PDF