公开(公告)号：US20240131476A1

公开(公告)日：2024-04-25

申请号：US18381753

申请日：2023-10-18

Applicant: Khalifa University of Science and Technology

Inventor： Shadi Wajih HASAN ,  Fawzi BANAT ,  Ahmed Fayez YOUSEF ,  Lobna Issa NASSAR ,  Hiyam Hisham KHALIL ,  Hanaa Mohamed Samy Mohamed Saber HEGAB ,  Vijay Kumar Shankarayya WADI

IPC: B01D69/14 ,  B01D67/00 ,  B01D71/02 ,  B01D71/48 ,  C01B32/174 ,  C01B32/194 ,  C01B32/198 ,  C02F1/44

CPC classification number: B01D69/148 ,  B01D67/0079 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/48 ,  C01B32/174 ,  C01B32/194 ,  C01B32/198 ,  C02F1/44 ,  C01B2202/06 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2002/88 ,  C01P2004/03

Abstract: The present disclosure relates to sustainable and green polylactic acid-based membranes embedded with self-assembled positively and negatively charged multiwalled carbon nanotube/graphene oxide nanohybrids for the removal of organic and inorganic nutrients from wastewater, and methods of synthesis of the same. A positively charged multi-walled carbon nanotube/graphene oxide (f-MWCNT/GO) nanohybrid-based mixed matrix membrane can comprise a self-assembled multi-walled carbon nanotube and graphene oxide (f-MWCNT/GO) nanohybrid, and a polylactic acid (PLA) membrane matrix. The f-MWCNT/GO nanohybrid is integrated into the PLA membrane matrix to form the positively charged mixed matrix membrane. A negatively charged multi-walled carbon nanotubes (f-GO/MWCNTs-COOH) nanohybrid-based mixed matrix membrane can comprise a positively charged Graphene Oxide and negatively charged multi-walled carbon nanotube-COOH (f-GO/MWCNTs-COOH) nanohybrid, and a polylactic acid (PLA) membrane matrix. The f-GO/MWCNTs-COOH nanohybrid is integrated into the PLA membrane matrix to form the negatively charged mixed matrix membrane.

公开(公告)号：US20240226815A9

公开(公告)日：2024-07-11

申请号：US18381753

申请日：2023-10-19

Applicant: Khalifa University of Science and Technology

Inventor： Shadi Wajih HASAN ,  Fawzi BANAT ,  Ahmed Fayez YOUSEF ,  Lobna Issa NASSAR ,  Hiyam Hisham KHALIL ,  Hanaa Mohamed Samy Mohamed Saber HEGAB ,  Vijay Kumar Shankarayya WADI

IPC: B01D69/14 ,  B01D67/00 ,  B01D71/02 ,  B01D71/48 ,  C01B32/174 ,  C01B32/194 ,  C01B32/198 ,  C02F1/44

CPC classification number: B01D69/148 ,  B01D67/0079 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/48 ,  C01B32/174 ,  C01B32/194 ,  C01B32/198 ,  C02F1/44 ,  C01B2202/06 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2002/88 ,  C01P2004/03

Abstract: The present disclosure relates to sustainable and green polylactic acid-based membranes embedded with self-assembled positively and negatively charged multiwalled carbon nanotube/graphene oxide nanohybrids for the removal of organic and inorganic nutrients from wastewater, and methods of synthesis of the same. A positively charged multi-walled carbon nanotube/graphene oxide (f-MWCNT/GO) nanohybrid-based mixed matrix membrane can comprise a self-assembled multi-walled carbon nanotube and graphene oxide (f-MWCNT/GO) nanohybrid, and a polylactic acid (PLA) membrane matrix. The f-MWCNT/GO nanohybrid is integrated into the PLA membrane matrix to form the positively charged mixed matrix membrane. A negatively charged multi-walled carbon nanotubes (f-GO/MWCNTs-COOH) nanohybrid-based mixed matrix membrane can comprise a positively charged Graphene Oxide and negatively charged multi-walled carbon nanotube-COOH (f-GO/MWCNTs-COOH) nanohybrid, and a polylactic acid (PLA) membrane matrix. The f-GO/MWCNTs-COOH nanohybrid is integrated into the PLA membrane matrix to form the negatively charged mixed matrix membrane.

公开(公告)号：US20240375079A1

公开(公告)日：2024-11-14

申请号：US18195124

申请日：2023-05-09

Applicant: Khalifa University of Science and Technology

Inventor： Shadi Wajih HASAN ,  Fawzi BANAT ,  Ahmed Mamdouh Mahmoud ELMEKAWY ,  Hanaa Mohamed Samy Mohamed Saber HEGAB

IPC: B01J20/24 ,  B01D69/02 ,  B01D69/12 ,  B01D69/14 ,  B01D71/02 ,  B01D71/82 ,  B01J20/20 ,  B01J20/28 ,  B01J20/32 ,  C02F1/44

Abstract: A multi-functionalized NPG nanosheet can be used to form a 3D hierarchical multi-functionalized NPG membrane (NPG-pTD membrane) for use in oil/water separation. The NPG-pTD membrane includes a plurality of multi-functionalized NPG nanosheets in a stacked assembly with polyphenolic nanoparticles attached to the NPG nanosheets throughout the membrane. The NPG-pTD membrane can be formed via in-situ polymerization, which is vacuum assisted, such that the phenolic compounds from the multi-functionalized NPG nanosheet form the nanoparticles. Interlayer d-spacing between the adjacent nanosheets in the stacked assembly creates expansive and constricted channels, in addition to nanochannels provided by the pores in the nanosheets, such that the membrane has aquaporin-like properties. The NPG-pTD membrane exhibits high permeability and flux and superior selectivity for effective oil/water separation.

公开(公告)号：US20240125781A1

公开(公告)日：2024-04-18

申请号：US17966051

申请日：2022-10-14

Applicant: Khalifa University of Science and Technology

Inventor： Shadi Wajih HASAN ,  Habiba ALSAFAR ,  Ahmed Fayez YOUSEF ,  Vijay Kumar Shankarayya WADI ,  Lina TIZANI ,  Dana KADADOU

IPC: G01N33/569 ,  B05D7/00 ,  G01N27/12 ,  G01N33/543

CPC classification number: G01N33/56983 ,  B05D7/586 ,  G01N27/125 ,  G01N33/5438

Abstract: In some embodiments, a method includes applying an analyte to a rGO biosensor configured to bind to the analyte; applying a DC voltage to the rGO biosensor, wherein the DC voltage is +0.0008V to +0.005V for a negatively charged analyte; or −0.005V to −0.0008 for a positively charged analyte; and monitoring an electrical signal from the rGO biosensor for a response to the analyte.

公开(公告)号：US20230292860A1

公开(公告)日：2023-09-21

申请号：US17928706

申请日：2021-05-04

Applicant: Khalifa University of Science and Technology

Inventor： Shadi Wajih HASAN ,  Musthafa MAVUKKANDY

IPC: A41D13/11 ,  B01D39/16 ,  B01D39/20 ,  B01D69/14 ,  D04H1/4282 ,  D04H1/728 ,  A41D31/30 ,  A62B23/02

CPC classification number: A41D13/1192 ,  B01D39/1623 ,  B01D39/2031 ,  B01D39/2072 ,  B01D69/148 ,  D04H1/4282 ,  D04H1/728 ,  A41D31/30 ,  A62B23/025 ,  B01D2239/025 ,  B01D2239/0258 ,  B01D2239/0275 ,  B01D2239/0421 ,  B01D2239/0435 ,  B01D2239/0442 ,  B01D2239/0631 ,  B01D2239/1216 ,  B01D2239/1275 ,  B01D2323/39 ,  D01D5/0038

Abstract: Embodiments include a filter material including an electrospun nanofiber membrane and an active nanomaterial agent incorporated into the electrospun nanofiber membrane, wherein the electrospun nanofiber membrane filters disease-causing agents and the wherein the active nanomaterial agent degrades disease-causing agents. Embodiments further include a face mask and/or respirator including a filter material, wherein the filter material includes an electrospun nanofiber membrane and an active nanomaterial agent incorporated into the electrospun nanofiber membrane, wherein the electrospun nanofiber membrane filters disease-causing agents and the wherein the active nanomaterial agent degrades disease-causing agents.