Composite materials were synthesized by encapsulating Au and Ag nanoparticles in an agar gel matrix. These metallic nano-particles were found to be separately stored, so their optical, catalytic, and antibacterial pro...Composite materials were synthesized by encapsulating Au and Ag nanoparticles in an agar gel matrix. These metallic nano-particles were found to be separately stored, so their optical, catalytic, and antibacterial properties were retained both in the composite gel and a composite membrane. The composite gels were stable under hard external conditions. Based on this, a sensor for the detection of Hg2+ was developed using the Au nanoparticle/agar composite gel. Antibacterial materials were achieved using the Ag nanoparticle/agar composite gel and composite membrane. These two Ag nanoparticle-based materials showed good antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus.展开更多
基金financially supported by the National Natural Science Foundation of China(21035005)the Fundamental Research Funds for the Central Universities(XDJK2012C048)the Research Fund for the Doctoral Program of Southwest University(swu112071)
文摘Composite materials were synthesized by encapsulating Au and Ag nanoparticles in an agar gel matrix. These metallic nano-particles were found to be separately stored, so their optical, catalytic, and antibacterial properties were retained both in the composite gel and a composite membrane. The composite gels were stable under hard external conditions. Based on this, a sensor for the detection of Hg2+ was developed using the Au nanoparticle/agar composite gel. Antibacterial materials were achieved using the Ag nanoparticle/agar composite gel and composite membrane. These two Ag nanoparticle-based materials showed good antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus.