Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites

• Nghiem Thi Thuong,
• Le Dinh Quang,
• Vu Quoc Cuong,
• Cao Hong Ha,
• Nguyen Ba Lam and
• Seiichi Kawahara

Beilstein J. Nanotechnol. 2024, 15, 168–179, doi:10.3762/bjnano.15.16

• grafting on NR to form an in situ nanosilica nanomatrix. The formation of nanosilica particles improved the thermal and mechanical properties of the graft copolymer. Furthermore, a well-controlled nanosilica nanomatrix structure in NR has been achieved in our previous work [18], where VTES was grafted onto

• with HITACHI S-4800. The measurement was performed at room temperature. The tensile properties of the composite samples were measured with a Tokyo Instron 5300 (Japan). The graft copolymer films (thickness of 1 mm) were cut in a dumbbell shape described in JIS K6251. Tensile measurements were done at

• room temperature with a speed test of 200 mm/min. Dynamic mechanical analysis (DMA) of the graft copolymer was measured with a MCR 301 (Anton Paar Physica, Japan) analyzer using a 12 mm parallel plate (PP12) measuring system. First, the samples were heated to 80 °C in gaseous N2 and kept for 40 min for

Anticancer efficacy of a supramolecular complex of a 2-diethylaminoethyl–dextran–MMA graft copolymer and paclitaxel used as an artificial enzyme

• Yasuhiko Onishi,
• Yuki Eshita,
• Rui-Cheng Ji,
• Masayasu Onishi,
• Takashi Kobayashi,
• Masaaki Mizuno,
• Jun Yoshida and
• Naoji Kubota

Beilstein J. Nanotechnol. 2014, 5, 2293–2307, doi:10.3762/bjnano.5.238

• the effectiveness of PTX alone (p < 0.036). Above all, the DDMC/PTX complex is not degraded in cells and acts as an intact supramolecular assembly, which adds a new species to the range of DDS. Keywords: artificial enzyme; diethylaminoethyl–dextran–MMA; graft copolymer; multi-drug resistance of

• used as a highly promising non-viral vector [12][13][14][15][16][17][18][19][20][21][22][23]. Indeed, it has been reported that a complex of the DEAE–dextran–MMA graft copolymer and DNA, which modified the properties of DEAE–dextran, had a transformation efficiency that was over 50-fold that of DEAE

• selectivity. This complex should be regarded as an artificial enzyme with substrate specificity, and it is reported to exert an anticancer effect as an artificial enzyme. Polymer micelle Characteristics of the 2-diethylaminoethyl-dextran methyl methacrylate graft copolymer: DDMC is a copolymer that is formed