NIR (Near-Infrared) Driven Carbon Nanotube Modified with Dendrimers

Abstract

Dendrimers and carbon nanotube took an important role in transport and delivery of drugs, gene, et al, however, to improve its functional properties is still a great challenge. Carbon nanotube not only has good biocompatibility but also hold optical adsorption in NIR. In biomimetic and biomedical fields, nanorobots or nanocarriers with external stimuli response for removal the organic pollutants and toxins or drugs in the living body are attractive for research and applications. In this paper, the self-assembly with CNTs containing –COOH and dendrimers having –NH2 groups was carried out. A series of characterizations were performed by SEM (scanning electron microscopy), TEM (transmission electron microscopy), XRD (X-ray diffraction), and Fourier-Transform Infrared (FTIR) spectra. The adsorption properties and releasing characteristics of CNTs modified with dendrimers were performed with simulating drugs. Some meaningful results were obtained. The photoconductivity response to visible light and 808 nm laser with low-power were studied based on interdigital electrodes of Au on flexible PET(polyethylene terephthalate) film substrate. The results indicated that CNTs modified with dendrimers showed good photo-response to visible light and 808 nm laser. It would be developing smart nanorobots with external stimuli response for removal the organic pollutants and toxins or drugs in the living body.

Broadband Spectrum Light-Driven PANI/Au/Beta-Cyclodextrin Nanocomposite and Its Light-Triggered Interfacial Carrier Transfer

“…For nearly 20 years, Ma and his coauthors have been very interested in organic/inorganic functional nanocomposites and their properties. The materials involved have included metal oxides, metal sulfides, carbon nanomaterials, conjugated polymers, non-conjugated polymers, conjugated organic small molecules, organic/inorganic hybrid nanostructures, and heterostructures [56,[146][147][148]. Some exhibited good photo-current switching behaviors from the visible light region to NIR by tailoring interface engineering and defect engineering.…”