Fluorescence – Page 2 – TechConnect Briefs

Study on the novel drug vehicle with multimodal imaging function

Wu P.J., Liu T.Y., Institute of Biomedical Engineering, National Yang-Ming University of Taiwan (ROC), TW

Recently, in order to combine diagnosis with therapy in a single box, drug delivery systems (DDSs) associating with imaging functions were developed to improve the efficacy of diseases detection, delivery of therapeutic agents, and the [...]

Synthesis of Non-Spherical CdSe Quantum Dots

Ivanova O.S., Zimmermann K.A., Campbell T.A., Virginia Tech, US

Here we describe the synthesis of non-spherical CdSe quantum dots (QDs) through high temperature reduction in the presence of TOP (Tri-n-octylphosphine) and TOPO (Tri-n-octylphosphine oxide). High affinity of phosphine oxide to the surface of CdSe [...]

Polymersomes and Imaging: A Quantitative Approach

Joseph A.S., Brown N.J., Battaglia G., University of Sheffield, UK

Nano-sized carriers are widely used as imaging tools. Quantification of the amount of carrier delivered provides useful informations in development and testing stages. This work describes a HPLC method to quantify fluorescent labelled polymersomes. Polymersomes [...]

Fluorescent Nanodiamonds with Silicon-Vacancy Color Center: A Potential Cellular Biomarker

Singh S., University of Alabama at Birmingham, US

Nanodiamond particles are emerged as a promising candidate as an imaging probe and as a drug and gene delivery agent because of their promising photostable luminescent emission upon incorporation of color centers (mostly nitrogen vacancy), [...]

One Pot vs Two Steps Synthesis of Fluorescent Gold Nanoparticles and Capping with Thiolated Organic Linker

Rastogi S.K., Denn B.D., Branen A.L., University of Idaho, US

Nobel metal nanoparticles (NPs) such as Au and Ag have gained great attention in the past decades due to their fundamental optical properties. Based on that interest, the current work is focused for the synthesis [...]

Synthesis and characterization of FITC-aminated agarose as highly-fluorescent labeling agent

Zhang L., Huang J., Chu B., Tang S., Jinan University, CN

A new fluorescent agent, FITC labeling agarose is designed to determine whether it can act as an effective fluorescent labeling agent of cell or not. The degraded agarose reacted with 3-chloro-1, 2-epoxypropane in NaOH medium [...]

Polarity sensitive colloidal gold nanoparticles

Amin F., Yushchenko D., Zhang F., Zulqurnain A., Parak W.J., Philipps Universität Marburg, DE

Polarity sensitive gold nanoparticles have been synthesized and their fluorescence properties have been measured. The effect of external factors such as alcohols, polyamines and detergents has been investigated.

Size and Count of Nanoparticles by Scattering and Fluorescence Nanoparticle Tracking Analysis (NTA)

Griffiths D., Hole P., Smith J., Malloy A., Carr B., NanoSight, US

A novel addition to a technique for the analysis of nanoparticles in a suspension is described. The Nanoparticle Tracking Analysis (NTA) technique sizes individual nanoparticles, based on their Brownian motion. Unlike classical light scattering techniques, [...]

Zinc Oxide Based Hydrogel for Bio-Applications

John S., Marpu S., Fujita Y., Omary M., Neogi A., University of North Texas, US

ZnO can be elected as a potential replacement for conventional dyes and toxic quantum dots in bio-medical applications owing to its low toxicity and high photo stability. The major drawback of using semiconductor nanoparticles including [...]

Enhanced UV Light Emission in Silicon nanoparticles

Singh A., Grycznski K.G., Rout B., Li J., McDaniel F., Neogi A., Sahu G., Mahapatra D.P., University of North Texas, US

UV light emission comparable to GaN based semiconductor is observed from gold-implanted Si (100) semiconductors. A low energy Au implant forming the Si nanoparticles or quantum dots are been irradiated and recrystallized by a MeV [...]