Optical Property of Contained Fullerene Polymers

The presented study in the field of optical area is about receiving polymer new materials in the way of doping a small amount of fullerene С60. Under the method of preparing samples it is revealed characteristics of an interaction between polymer components and doping materials. Significant absorption of ultraviolet radiation by studied samples at the certain concentration of the doping material is presented in the result of the optical study. It is shown that metal-fullerene nanostructures which are on the polymer surface call surface resonance of plasmon absorption.

Modeling of plasmon resonance in periodic multilayer structures based on chromium with a surface island layer

The optical properties of Cr/Si/Cr and Cr/CrSi2 /Cr structures with periodically located chromium islands are modeled using the finite-difference time domain method. These structures are characterized by the phenomenon of plasmon resonance. The dependences of the intensity and position of the plasmon absorption peak on the thickness and radius of the islands are determined. It was observed that when the island thickness increases to 120 nm, the intensity of the absorption peak increases to 69 % for the Cr/Si/Cr structure and to 55 % for the Cr/CrSi2 /Cr structure. It was found that the peak of plasmon absorption in the spectrum of the Cr/Si/Cr structure is at a shorter wavelength (8.4 µm for Cr/Si/Cr, 11.1 µm for Cr/CrSi2/Cr), and also has a higher intensity (the share of absorbed radiation is 14 % higher compared to the peak of plasmon absorption in the spectrum of the Cr/CrSi2 /Cr structure). The obtained dependences indicate that the Cr/Si/Cr and Cr/CrSi2 /Cr structures can be used as IR detectors.

Properties of Nanomaterials and Environment

The chapter provides a timely review of the various properties of nonmaterial and their applications into environmental compartments. An extensive variety of poisonous chemicals is discharged into the environment because of globalization and industrialization. The dimensional, compositional, geometric, and structural properties are fundamental to convey usefulness of the nanomaterials. The controlled sizes and shapes of nanoparticles are anticipated to yield unique catalytic, electrochemical, and photochemical properties. The electrochemical properties of monolayer-functional metal nanoparticles are expected to be controlled by the particle sizes. Metal nanomaterials have interesting optical properties due to strong surface plasmon absorption and field enhancement effects; metal oxides lack visible absorption due to very large bandgap. Nanocomposites have complex optical properties. Nanomaterials present gigantic advantages on diverse applications, catalysis, imaging, biotechnological, and sensor applications due to their improved properties.

Recent New Results and Achievements of California South University (CSU) BioSpectroscopy Core Research Laboratory for COVID-19 or 2019-nCoV Treatment: Diagnosis and Treatment Methodologies of “Coronavirus”

Coronavirus nanoparticles show a strong peak of Plasmon absorption in ultraviolet–visible zone. A strong interaction exists between the surface of Coronavirus nanoparticles and Bcr–Abl tyrosine–kinase inhibitors (TKI) such as Imatinib (STI571), Nilotinib (AMN107), Dasatinib (BMS–345825), Bosutinib (SKI–606), Ponatinib (AP–24534) and Bafetinib (INNO–406). Bcr–Abl tyrosine–kinase inhibitors (TKI) such as Imatinib (STI571), Nilotinib (AMN107), Dasatinib (BMS–345825), Bosutinib (SKI–606), Ponatinib (AP–24534) and Bafetinib (INNO–406) cause to aggregation of Coronavirus nanoparticles linked to DNA/RNA and hence, lead to widening of peak Plasmon of Coronavirus nanoparticles surface at 550 (nm) and emerging a new peak at higher wavelength. In the current project, this optical characteristic of Coronavirus nanoparticles is used to time investigate of interaction between different Bcr–Abl tyrosine–kinase inhibitors (TKI) such as Imatinib (STI571), Nilotinib (AMN107), Dasatinib (BMS–345825), Bosutinib (SKI–606), Ponatinib (AP–24534) and Bafetinib (INNO–406) and Coronavirus nanoparticles. The results were shown that Bcr–Abl tyrosine–kinase inhibitors (TKI) such as Imatinib (STI571), Nilotinib (AMN107), Dasatinib (BMS–345825), Bosutinib (SKI–606), Ponatinib (AP–24534) and Bafetinib (INNO–406) with shorter chain length interact faster with Coronavirus nanoparticles. Therefore, a simple and fast method for identification of Bcr–Abl tyrosine–kinase inhibitors (TKI) such as Imatinib (STI571), Nilotinib (AMN107), Dasatinib (BMS–345825), Bosutinib (SKI–606), Ponatinib (AP–24534) and Bafetinib (INNO–406) with various chain length using red shift in surficial Plasmon absorption is presented.

Improved CdS photocatalytic H2 evolution using Au–Ag nanoparticles with tunable plasmon-enhanced resonance energy transfer

Au–Ag hollow nanoparticles (HNPs) with tunable plasmon absorption peaks were mixed with CdS to achieve stepwise spectral overlap to enhance energy transfer and photocatalytic hydrogen evolution.