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公开(公告)号：US11351508B2
公开(公告)日：2022-06-07
申请号：US16757411
申请日：2018-10-18
Inventor： Pradeep Thalappil , Depanjan Sarkar , Anirban Som , Biswajit Mondal , Swathy Jakka Ravindran
IPC: B01D67/00 , B01D61/02 , B01D69/10 , B01D69/14 , B01D71/02 , B01J27/051 , B01J35/00 , B01J35/10 , B01J37/34 , C01G39/06 , C02F1/30 , C02F1/44
Abstract: The present invention relates to a new method for creating nanopores in single layer molybdenum disulfide (MoS2) nanosheets (NSs) by the electrospray deposition (ESD) of silver ions on a water suspension of the former. Electrospray deposited silver ions react with the MoS2 NSs at the liquid-air interface resulting in Ag2S nanoparticles (NPs) which goes into the solution leaving the NSs with holes of 3-5 nm diameter. Specific reaction with the S of MoS2 NSs leads to Mo-rich edges. Such Mo-rich defects are highly efficient for the generation of active oxygen species such as H2O2, under visible light, which causes efficient disinfection of water. The holey MoS2 NSs shows 105 times higher efficiency in disinfection compared to normal MoS2 NSs. Developed a conceptual prototype and tested with multiple bacterial strains and a viral strain, demonstrating the utility of the method for practical applications.
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公开(公告)号：US20190112494A1
公开(公告)日：2019-04-18
申请号：US16163325
申请日：2018-10-17
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Avijit Baidya , Mohd. Azhardin Ganayee , Swathy Jakka Ravindran
IPC: C09D101/02 , C09D7/61 , C09D7/63
Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.
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公开(公告)号：US11536520B2
公开(公告)日：2022-12-27
申请号：US16966751
申请日：2019-02-02
Inventor： Pradeep Thalappil , Ankit Nagar , Ramesh Kumar , Srikrishnarka Pillalamarri
Abstract: The present invention relates to a method of enhancing heat transfer of metallic surfaces by (1) fabricating hierarchical micro-nanostructured surfaces using etching processes, and (2) fabricating hydrophobic and hydrophilic regions, using a printing or a coating technique, followed by etching. The said method enhances the density of condensation sites over a metallic surface and additionally facilitates the departure of condensed droplets from the surface. Such a surface also enhances the sensible heat transfer characteristics, and improves the coefficient of performance (COP) of refrigeration systems for applications like atmospheric water generators, dehumidifiers, air conditioners, etc.
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公开(公告)号：US09903821B2
公开(公告)日：2018-02-27
申请号：US14888193
申请日：2014-04-30
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
IPC: B32B5/16 , C09C1/00 , G01N21/65 , C09D7/12 , G01N21/64 , A61K47/02 , B05D5/06 , B05D7/00 , B82Y30/00
CPC classification number: G01N21/658 , A61K47/02 , B05D5/061 , B05D7/544 , B82Y30/00 , C09C1/0006 , C09C1/0081 , C09D7/62 , C09D7/70 , G01N21/64
Abstract: Coated mesoflower are described including: a metallic mesoflower core having a first surface and including at least one protrusion terminating in a tip; a non-metallic coating covering and substantially conformal to the first surface, thereby creating an outer surface of the coated mesoflower; and a marker material having an optical property that is enhanced in the presence of the coated mesoflower. Coated hollow mesoflowers that do not have the metallic mesoflower core are also described.
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公开(公告)号：US20210178356A1
公开(公告)日：2021-06-17
申请号：US16771635
申请日：2018-12-05
Inventor： Pradeep Thalappil , Biswajit Mondal , Ananthu Mahendranath , Anirban Som , Sandeep Bose , Tripti Ahuja , Anil Kumar Avula , Jyotirmoy Ghosh
Abstract: The process of reacting nanoscale ce-MoS2 nanosheets anchored on oxide support with lead in solution at room temperature whereby the reaction is rapid and spontaneous resulting in the formation of PbMoO4-xSx in the process of scavenging Pb2+ and Pb4+ present in the solution.
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Patent Agency Ranking
公开(公告)号：US11945957B2
公开(公告)日：2024-04-02
申请号：US17667196
申请日：2022-02-08
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Avijit Baidya , Mohd. Azhardin Ganayee , Jakka Ravindran Swathy
IPC: C09D101/00 , C08B15/05 , C08B15/06 , C09D5/16 , C09D7/61 , C09D7/63 , C09D101/02 , C09D101/08 , C08K3/34 , C08K9/06
CPC classification number: C09D101/02 , C08B15/05 , C08B15/06 , C09D5/1681 , C09D7/61 , C09D7/63 , C09D101/08 , C08K3/346 , C08K9/06 , C09D101/08 , C08K3/346
Abstract: The present invention relates to a durable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.
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公开(公告)号：US10196564B2
公开(公告)日：2019-02-05
申请号：US15193224
申请日：2016-06-27
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Sreeprasad Theruvakkattil Sreenivasan , Shihabudheen Mundampra Maliyekkal
Abstract: A luminescent nanocomposite comprising functionalized graphene and a luminescent moiety, its fabrication, and uses are described. The luminescent moiety is anchored non-covalently to the functionalized graphene. Luminescence properties of the nanocomposite may be modulated by choosing appropriate luminescent moieties such as native lactoferrin, native lactoferrin protected gold clusters, and so forth. Mechanical properties of the nanocomposite may be modulated by adding a biopolymer such as Chitosan. The nanocomposite may be used as a luminescent ink for encoding information, or a luminescent film for tagging articles of manufacture such as electronic waste components.
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公开(公告)号：US20220162469A1
公开(公告)日：2022-05-26
申请号：US17667196
申请日：2022-02-08
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Avijit Baidya , Mohd. Azhardin Ganayee , Swathy Jakka Ravindran
IPC: C09D101/02 , C09D7/63 , C09D7/61 , C08B15/05 , C08B15/06 , C09D101/08 , C09D5/16
Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.
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公开(公告)号：US11242468B2
公开(公告)日：2022-02-08
申请号：US16163325
申请日：2018-10-17
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Avijit Baidya , Mohd. Azhardin Ganayee , Swathy Jakka Ravindran
IPC: C09D101/00 , C09D101/02 , C09D7/63 , C09D7/61 , C08B15/05 , C08B15/06 , C09D101/08 , C09D5/16 , C08K3/34 , C08K9/06
Abstract: The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.
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10.发明授权公开(公告)号：US09494517B2
公开(公告)日：2016-11-15
申请号：US14617290
申请日：2015-02-09
Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS
Inventor： Pradeep Thalappil , Shibu Sidharth Edakkattuparambil
CPC classification number: G01N21/6447 , B42D25/29 , B42D25/387 , B42D2033/20 , B42D2035/34 , B82Y10/00 , B82Y30/00 , C09K11/025 , C09K11/58 , G07D7/14 , Y10T428/30 , Y10T428/31634 , Y10T428/31971 , Y10T428/31978
Abstract: A composition includes a quantum cluster of Agm or Aun, one or more protector molecules; and a molecular cavity partially or wholly surrounding the quantum cluster. A method for preparing the quantum clusters includes adding a first amount of glutathione to a gold salt, a silver salt, or a mixture thereof to form a mixture; adding a reducing agent to the mixture to form a precipitate; and mixing the precipitate with a second amount of glutathione and a cyclodextrin to form a composition. Devices are prepared from the quantum clusters, and the devices may be used in methods of authentication of articles.
Abstract translation: 组合物包括Agm或Aun的量子簇，一个或多个保护子分子; 以及部分或全部围绕量子簇的分子腔。 制备量子团的方法包括向金盐，银盐或其混合物中加入第一量的谷胱甘肽以形成混合物; 向所述混合物中加入还原剂以形成沉淀物; 并将沉淀与第二量的谷胱甘肽和环糊精混合以形成组合物。 器件由量子簇制备，器件可用于制品认证的方法。
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