When CdSe/ZnS-polyethyleneimine (PEI) quantum dots (QDs) are microencapsulated in polymeric microcapsules, human fibroblasts are protected from acute cytotoxic effects. Differences in cellular morphology, uptake, and viability were assessed after treatment with either microencapsulated or unencapsulated dots. Specifically, QDs contained in microcapsules terminated with polyethylene glycol (PEG) mitigate contact with and uptake by cells, thus providing a tool to retain particle luminescence for applications such as extracellular sensing and imaging. The microcapsule serves as the "first line of defense" for containing the QDs. This enables the individual QD coating to be designed primarily to enhance the function of the biosensor.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3140988 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0022079 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
A Review on the Applications of Quantum Dots in Sample Preparation.
J Sep Sci
January 2025
Department of Ocean Science, Iranian National Institute for Oceanography and Atmospheric Science, Tehran, Iran.
In recent years, despite significant advances in preconcentration and preparation techniques that have led to efficient recovery and accurate measurement of target compounds. There is still a need to develop adsorbents with unique and efficient features such as high pore volume and surface area, reactivity, easy synthesis, low toxicity, and compatibility with the environment, which increase the adsorption capacity and increase extraction efficiency. Semiconductor nanocrystals called quantum dots (QDs) with a size of less than 10 nm are three-dimensional nanoparticles with a spherical, rod, or disc structure that have significant potential in extraction as adsorbents due to their excellent properties such as low toxicity, reactivity, environmental friendliness, and hydrophilic and hydrophobic interactions.
View Article and Find Full Text PDFMetal chalcogenide quantum dots for photochemical and electrochemical hydrogen generation: recent advancements and technological challenges.
Nanotechnology
January 2025
Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi, Delhi, 110025, INDIA.
The performance of heterogeneous catalysis, specifically photochemical and electrochemical hydrogen evolution reaction fundamentally relies upon the prudent choice of catalytic systems with ideal optoelectronic and surface properties. Progressive research in materials processing has hinted at the large-scale applicability of 2D materials for achieving higher activity in the HER process. Among 2D materials, transition metal chalcogenides have emerged as the advanced materials to enhance the rate of HER on account of their layered structure and chalcogen-sites that exhibit favourable hydrogen binding energies.
View Article and Find Full Text PDFRealizing low voltage-driven bright and stable quantum dot light-emitting diodes through energy landscape flattening.
Light Sci Appl
January 2025
Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, Henan University, 475004, Kaifeng, China.
Solution-processed quantum dot light-emitting diodes (QLEDs) hold great potential as competitive candidates for display and lighting applications. However, the serious energy disorder between the quantum dots (QDs) and hole transport layer (HTL) makes it challenging to achieve high-performance devices at lower voltage ranges. Here, we introduce "giant" fully alloy CdZnSe/ZnSeS core/shell QDs (size ~ 19 nm) as the emitting layer to build high-efficient and stable QLEDs.
View Article and Find Full Text PDFMicrowave synthesis of molybdenum disulfide quantum dots and the application in bilirubin sensing.
Methods Appl Fluoresc
January 2025
Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, Liaoning Province, China, Shenyang, 110004, CHINA.
Molybdenum disulfide quantum dots (MoS2 QDs) is a new type of graphite like nanomaterial, which exhibited well chemical stability, unique fluorescence characteristics, and excellent biocompatibility. The conventional hydrothermal synthesis of MoS2 generally requires a long-term reaction at high temperature and high pressure. Herein, we have developed a simple and fast MoS2 QDs synthesis scheme using microwave heating, and further modified the surface of MoS2 QDs using 3-aminophenylboronic acid.
View Article and Find Full Text PDFMerged Red and NIR Light Sources for Photobiomodulation Therapy in Diabetic Wound Healing.
ACS Appl Mater Interfaces
January 2025
School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
Photobiomodulation (PBM) is considered an effective and safe therapeutic modality in supporting the treatment of complications from a global pandemic-diabetes. In this study, PBM therapy is investigated to accelerate wound healing in diabetic mice (DM), under the combined biological effects of red light from a red organic light-emitting diode (ROLED) and near-infrared (NIR) light from an NIR conversion film (NCF) with dispersed CuInS/ZnS quantum dots (QDs). The QD concentration and the NCF structure were optimized to maximize the optical properties and mechanical stability.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!