公开(公告)号：US20240328943A1

公开(公告)日：2024-10-03

申请号：US18192050

申请日：2023-03-29

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Muhammad MANSHA ,  Shahid ALI ,  Safyan Akram KHAN ,  Nadeem BAIG

IPC: G01N21/64 ,  C07F7/08

CPC classification number: G01N21/6428 ,  C07F7/0838 ,  G01N2021/6432

Abstract: A sensor for the detection of mercury ions that includes a substrate, a nanocomposite material at least partially covering a surface of the substrate. The nanocomposite material includes naphthalene-modified silica nanoparticles (NSPs) of Formula (I). The NSPs contains a naphthalene moiety, a maleic moiety, and an alkylamine functionalized silica nanoparticle, wherein the naphthalene moiety is covalently linked to the alkylamine functionalized silica nanoparticle via the maleic moiety. The nanocomposite material has a thermal stability up to a temperature of about 200° C. as determined by thermogravimetric analysis (TGA).

公开(公告)号：US20250064059A1

公开(公告)日：2025-02-27

申请号：US18455672

申请日：2023-08-25

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Safyan Akram KHAN ,  Shahid ALI ,  Layan Mohammed NOORWALI ,  Muhammad MANSHA

IPC: A01N43/20 ,  A01N25/26 ,  A01N25/32

Abstract: A method of applying a pesticide composition to a target surface, including contacting the pesticide composition with the target surface; and leaving the pesticide composition on the target surface for a period of time. The pesticide composition includes a pesticide; and superparamagnetic iron oxide nanoparticles (SPIONs). An outer surface of the SPIONs have at least one coating selected from the group consisting of a polyethylene glycol, a compound with a carbon chain having up to 30 carbon atoms, a silane, and an aminosilane with a primary amine group to form coated SPIONs, where the pesticide interacts with the at least one coating on the coated SPIONs, and where the SPIONs are substantially spherical and have an average diameter of 10-30 nm.