A5064181185- Quantum Dots Synthesis And Properties
- Nanoplatforms for cancer theranostics
- Chalcogenide Semiconductor Thin Films
- Nanocluster Synthesis and Applications
- Photodynamic Therapy Research Studies
- Porphyrin and Phthalocyanine Chemistry
- Advanced biosensing and bioanalysis techniques
- Advanced Photocatalysis Techniques
- Advanced Nanomaterials in Catalysis
- Luminescence and Fluorescent Materials
- Carbon and Quantum Dots Applications
- Molecular Communication and Nanonetworks
- Cancer Cells and Metastasis
- Polymer Surface Interaction Studies
- SARS-CoV-2 detection and testing
- Advanced Welding Techniques Analysis
- Copper-based nanomaterials and applications
- MXene and MAX Phase Materials
- Semiconductor materials and interfaces
- Aluminum Alloys Composites Properties
- Nanoparticle-Based Drug Delivery
- Biosensors and Analytical Detection
- Electrochemical sensors and biosensors
- Quantum-Dot Cellular Automata
University of Johannesburg
2017-2024
Cape Peninsula University of Technology
2017-2024
SASTRA University
2022
B.S. Abdur Rahman Crescent Institute of Science & Technology
2022
Alagappa University
2022
Pohang University of Science and Technology
2022
University of Madras
2018
Abstract The toxicity of heavy metals present in binary semiconductor nanoparticles also known as quantum dots (QDs) has hindered their wide applications hence the advent non-toxic ternary dots. These new group have been shown to possess some therapeutic action against cancer cell lines but not significant enough be referred an ideal agent. In this report, we address problem by conjugating red emitting CuInS/ZnS QDs a 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin -photosensitizer for...
Background: Metal-free, water-soluble and highly stable meso-tetra-(4-sulfonatophenyl) porphyrin (TPPS 4 ) has been studied for their singlet oxygen quantum yield. However, TPPS suffers from inherent shortcomings. To address these, was conjugated to ternary copper indium sulphide/ zinc sulphide (CuInS 2 /ZnS) dots (QDs). Purpose: We herein report the first time synthesis of –CuInS/ZnS QDs conjugate as an improved photosensitizer. Methods: Water-soluble synthesized tetraphenylporphyrin (TPPH...
Green synthesis of Zn–In–S quantum dots and their fluorescence under an ultra violet lamp.
The link between the microbiome and cancer has led researchers to search for a potential probe intracellular targeting of bacteria cancer. Herein, we developed near infrared-emitting ternary AgInSe/ZnS quantum dots (QDs) dual bacterial imaging. Briefly, water-soluble QDs were synthesized in commercial kitchen pressure cooker. as-synthesized exhibited spherical shape with particle diameter 4.5 ± 0.5 nm, they brightly fluorescent photoluminescence maximum at 705 nm. showed low toxicity against...
Conjugation of photosensitizers (PS) with nanoparticles has been largely used as a strategy to stabilize PS in the biological medium resulting photosensitizing enhanced photoactivity. Herein, (Meso-5, 10, 15, 20-tetrakis (3-hydroxyphenyl) phorphyryn (mTHPP) was conjugated diamond (ND) by covalent bond. Nanoconjugate ND-mTHPP showed suitable stability aqueous suspension 58 nm hydrodynamic diameter and Zeta potential −23 mV. The antibacterial activity evaluated against Escherichia coli for...
Interest in SnS-based quantum dots (QDs) has increased due to their low toxicity, widespread natural availability, and superior electro-optical characteristics suitable for photodegradation applications. Herein, we report the synthesis of QDs using thiourea tin (II)chloride as salt precursors. The study explored impact various synthetic parameters such pH, capping ligand, Sn:S ratio, reaction solvent, ZnS shell on optical synthesized QDs. optimal properties were observed at pH = 3 ratio 1:1....
Photothermal therapy has been established recently as a non-invasive treatment protocol for cancer metastatic lymph nodes. Although this approach shows efficient tumour ablation towards node metastasis, the monitoring and reporting of progress using lymphatic delivery channel still need to be explored. Herein, we investigated anti-tumour effect pegylated gold nanorods with high aspect ratio (PAuNRs) delivered via route in mouse model. In study, breast carcinoma (FM3A-Luc) cells were...
Photodynamic therapy (PDT) is a non-invasive treatment modality that destroys abnormally growing cells or microorganisms. Porphyrins are used as photosensitizers in PDT; however, their clinical application has been limited by poor water solubility, resulting aggregation and low quantum yields of reactive oxygen species (ROS).To overcome these limitations improve PDT efficacy, we herein report the conjugation ZnCuInS/ZnS (ZCIS/ZnS) dots (QDs) to 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin...
In the present work, we report a simple synthetic strategy for fabricating ZnCuInS/ZnS–TPPS4 conjugates and study its cytotoxicity as promising material imaging phototherapy applications. The quaternary QDs were synthesized using eco-friendly materials such glutathione water solvent, while anionic 10,15,20-(4-sulphonatophenyl) porphyrin (TPPS4) was via acidification of meso-tetraphenylporphyrin precursor. Interest in TPPS4 results from high-water dispersity, stability, ability to generate...
Imaging is a critical step in diagnosis and therapy; thus, developing non-carcinogenic near-infrared (NIR) emitting probe for guided therapy remains priority effective bacteria cancer treatment. Herein, we report the effect of dual stabilization producing NIR fluorescent CuInSe/ZnS quantum dots (QDs) their use as imaging probes cancer-bacteria therapy. The as-synthesised QDs were stabilized using different combinations hydrophilic capping agents, MPA-Gelatine, TGA-Gelatine, MPA-Citrate...