Bio-Conjugated CNT-Bridged 3D Porous Graphene Oxide Membrane for Highly Efficient Disinfection of Pathogenic Bacteria and Removal of Toxic Metals from Water.
More than a billion people lack access to safe drinking water that is free from pathogenic bacteria and toxic metals. The World Health Organization estimates several million people, mostly children, die every year due to the lack of good quality water. Driven by this need, we report the development of PGLa antimicrobial peptide and glutathione conjugated carbon nanotube (CNT) bridged three-dimensional (3D) porous graphene oxide membrane, which can be used for highly efficient disinfection of Escherichia coli O157:H7 bacteria and removal of As(III), As(V), and Pb(II) from water. Reported results demonstrate that versatile membrane has the capability to capture and completely disinfect pathogenic pathogenic E. coli O157:H7 bacteria from water. Experimentally observed disinfection data indicate that the PGLa attached membrane can dramatically enhance the possibility of destroying pathogenic E. coli bacteria via synergistic mechanism. Reported results show that glutathione attached CNT-bridged 3D graphene oxide membrane can be used to remove As(III), As(V), and Pb(II) from water sample at 10 ppm level. Our data demonstrated that PGLa and glutathione attached membrane has the capability for high efficient removal of E. coli O157:H7 bacteria, As(III), As(V), and Pb(II) simultaneously from Mississippi River water.
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Bhanu Priya Viraka
BP
Nellore
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Rajashekhar
R
Kanchanapally
Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States.
Francisco
F
Pedraza
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Sudarson Sekhar
SS
Sinha
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Avijit
A
Pramanik
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Ashton T
AT
Hamme
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Zikri
Z
Arslan
Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States.
Dhiraj
D
Sardar
Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States ;
Paresh Chandra
PC
Ray
D023181:Antimicrobial Cationic Peptides; D004203:Disinfection / Q000379:methods*; D019453:Escherichia coli O157 / Q000302:isolation & purification*; D005978:Glutathione / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D008567:Membranes, Artificial; D019216:Metals, Heavy / Q000302:isolation & purification*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D016062:Porosity; D060888:Real-Time Polymerase Chain Reaction; D045483:Rivers / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
D023181:Antimicrobial Cationic Peptides; D008567:Membranes, Artificial; D019216:Metals, Heavy; D037742:Nanotubes, Carbon; D010087:Oxides; C045866:peptide-Gly-Leu-amide; D006108:Graphite; D005978:Glutathione
3D porous graphene oxide membrane; As(V) and Pb(II) from water; CNT-bridged graphene oxide; E. coli O157:H7 bacteria removal; bacteria disinfection; separation of As(III)