Abstract We report a new theranostic device based on lead sulfide quantum dots (PbS QDs) with optical emission in the near infrared wavelength range decorated affibodies (small 6.5 kDa protein-based antibody replacements) specific to cancer biomarker human epidermal growth factor receptor 2 (HER2), and zinc(II) protoporphyrin IX (ZnPP) combine imaging, targeting therapy within one nanostructure...

Sulfate, the main dissolved contaminant in acid mine drainage (AMD), is ubiquitous in watersheds affected by coal and metal mining operations worldwide. Engineered passive bioremediation systems (PBS) are low-cost technologies that remediate sulfate contamination by promoting (1) precipitation of sulfate-bearing compounds, such as schwertmannite and gypsum; and (2) microbially-mediated sulfate ...

In this work, nanocomposite samples of polyaniline (PANI) and lead sulfide nanoparticles (PbSNPs) were prepared, utilizing the solution preparation method, for implantation in energy storage elements. The PANI/PbS films irradiated by different fluences oxygen beam: 5 × 1016, 10 15 1016 ions.cm?2. composite was investigated XRD, SEM, DSC, FTIR. After ion irradiation, Tg Tm values decreased 4.8 °...

We investigated the expression of Toll-like receptor 4 (TLR4) in the acute phase of intestinal I/R injury during intussusception and evaluated whether anti-TLR4 antibody-conjugated lead sulfide quantum dots (TLR4-PbS QDs) could be used to detect and monitor the injury. We first established a mouse model of I/R injury during intussusception. TLR-PbS QDs were then intravenously administered to in...

The film casting method is implemented to synthesize a series of films consisting polyvinyl alcohol (PVA) and 4 wt%, 8 12 wt% lead sulfide (PbS) nanoparticles (NPs). X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Ultraviolet-visible (UV-vis) were used ensure the impact PbS loading on PVA properties, particularly optical ones. FTIR results show decrease in intensity for...

Magnesium ferrite (MgFe2O4) as a core magnetic nanostructure was synthesized via auto combustion method by using grapefruit extract as a biocompatible and cost-effective material. Then flower and star-like PbS were synthesized using thioglycolic acid as a sulfur source without using any chemical template. After that for preparation of magnetic and photocatalyst MgFe2O4-PbS nanocomposites, lead ...

Nanoscale miniaturization of chalcogenide semiconductors such as lead sulfide (galena) can generate interesting quantum confinement effects in the field optoelectronic applications. In this work, we developed a process order to obtain SiO2 nanospheres coated with Galena, denominated core–shell system; is based on Stöber’s method, where magnetic stirring was replaced by an ultrasonic bath achiev...