JP – Page 21 – TechConnect Briefs

Molecular Communication among Nanomachines Using Vesicles

Moritani Y., Hiyama S., Suda T., NTT DoCoMo, Inc., JP

Molecular communication is a new and interdisciplinary research area that spans the nanotechnology, biotechnology, and communication technology. Molecular communication allows biological and artificially-created nanomachines to communicate over a short distance using molecules. In molecular communication, [...]

CdSe Nanoparticles Modified with Water-soluble Terpolymers and their Application to Biomarkers

Tsutsumi H., Yamada M., Yasui M., Yamaguchi University, JP

Fluorescent labeling reagents are used as diagnosis and research reagents that label specific protein, antigen, antibody, and DNA. However, the chromophoric groups are not stable under long-time Ultra Violet (UV) excitation measurement condition. Nanometer-sized semiconductor [...]

Interaction between Artificial Mucin Layer and Stimuli-Responsive Nanogel Particles for the Oral Peptide Delivery Observed in Simulated Intestinal Solutions by Using Colloid Probe AFM Method

Kamiya H., Yoshimura M., Tsukada M., Ichikawa H., Fukumori Y., Tokyo University of Agriculture and Technology, JP

In order to characterize and control the adhesive behaviors of nanometer scaled stimuli-responsible gel particles designed for oral peptide delivery, their interaction with artificial mucin layer in the small intestinal solutions was determined by the [...]

Functional Stimuli-Responsive Nanogel-particles for Oral Peptide Delivery: Preparation, Drug-Release Behaviors and in Vitro Cellular Interaction

Ichikawa H., Fukumori Y., Kamiya H., Kobe Gakuin University, JP

The present study involves preparation and evaluation of novel core-shell nanoparticles (CSNPs) consisting of thermo-responsive poly(N-isopropylacrylamide) (p(NIPAAm)) hydrogel core with pH-responsive poly(methacrylic acid-grafted-poly(ethylene glycol)) (p(MAA-g-EG)) shell layer as a carrier for oral peptide delivery. The [...]

Experimental mechanical stress characterization of MEMS by using of confocal laser scanning microscope with a Raman spectroscopy interface

Yamaguchi M., Ueno S., Miura I., Erikawa W., Technical Research Institute Japan Society for the promotion of machine industry, JP

In this study, we demonstrate mechanical stress and shape profile measurements using confocal laser scanning microscopy (CLM) interface for Raman spectroscopy and that this system is reasonable and helpful to the MEMS designer. By combining [...]

Computations on Ba@C74 and Yb@C74

Slanina Z., Nagase S., Institute for Molecular Science, JP

Computations of C74 and Yb@C74 are reported. C74 exhibits just one IPR (isolated-pentagon-rule) structure, however, there are several C74 non-IPR cages with a relatively low energy. C74 is represented here by six cages. The computations [...]

Improving the High Temperature Thermoelectric Properties of Boron Cluster Compounds through Microstructure Control

Mori T., Nishimura T., Bando Y., National Institute for Materials Science, JP

The search for thermoelectric materials is being carried out with great intensity because of the huge possibilities for useful energy conversion of waste heat. There is obviously a particular need to develop materials which can [...]

Pore-Size Control of Carbon Nanospace with Ultrasonic Irradiation

Ohkubo T., Hori R., Tsuchiya K., Sakai H., Abe M., Tokyo University of Science, JP

In this study, we examined the micropore-size control on activated carbons by ultrasonic irradiation with various conditions.Pitch-based activated carbon fiber (ACF; AD’ALL Co. Ltd.) was used for the sample having relatively uniform micropores whose micropore [...]

Millimeter long vertically aligned single-walled carbon nanotubes by an ultra long lifetime of catalysts

Iwasaki T., Zhong G., Yoshida T., Aikawa T., Morikane R., Kawarada H., Waseda University, JP

Controlling the growth direction of SWNTs on a substrate is one of the most important issues for fabrication of SWNT-based applications, such as field effect transistors (FETs) and interconnects for LSI. We have succeeded in [...]

Nano-Sized Polymer Micelle Synthesized from Cationic Gemini Surfmer

Ohkubo T., Koike T., Tsubone K., Tsuchiya K., Sakai H., Abe M., Tokyo University of Science, JP

In this study, we examine the synthesis and characterization of polymer micelle using polymerizable cationic gemini surfactant (surfmer). In this work, polymerizable cationic gemini surfmer, (CH2)2 [BrN(CH3)2C11H22OCOC(CH3)CH2]2 (GSM) was newly synthesized and characterized. Also, a [...]