Toshiyuki Niwa

Preparations of biodegradable nanospheres of water-soluble and insoluble drugs with D,L-lactide/glycolide copolymer by a novel spontaneous emulsification solvent diffusion method, and the drug release behavior

Toshiyuki Niwa, Hirofumi Takeuchi, Tomoya Hino et al. · Journal of Controlled Release · 1993 · 481 citations

L-lactide/glycolide Copolymer, Drug Release Behavior, Microemulsion +7

Enteral Absorption of Insulin in Rats from Mucoadhesive Chitosan-Coated Liposomes

Hirofumi Takeuchi, Hiromitsu Yamamoto, Toshiyuki Niwa et al. · Pharmaceutical Research · 1996 · 388 citations

Hollow Microspheres for Use as a Floating Controlled Drug Delivery System in the Stomach

Yoshiaki Kawashimà, Toshiyuki Niwa, Hirofumi Takeuchi et al. · Journal of Pharmaceutical Sciences · 1992 · 269 citations

Nanomedicine, Engineering, Micro-encapsulation +8

Properties of a peptide containing dl-lactide/glycolide copolymer nanospheres prepared by novel emulsion solvent diffusion methods

Yoshiaki Kawashimà, Hiromitsu Yamamoto, Hirofumi Takeuchi et al. · European Journal of Pharmaceutics and Biopharmaceutics · 1998 · 182 citations

Engineering, Peptide Engineering, Polymer Science +5

Preparation of Controlled-Release Microspheres of Ibuprofen With Acrylic Polymers by a Novel Quasi-Emulsion Solvent Diffusion Method

Yoshiyuki Kawashima, Toshiyuki Niwa, Taro Iwamoto et al. · Journal of Pharmaceutical Sciences · 1989 · 168 citations

Micro-encapsulation, Microemulsion, Nano-drug Delivery +5