Patents by Inventor Murali Sastry

Murali Sastry has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8852316
    Abstract: The invention relates to a process for the preparation of silver nano particles comprising dissolving a surfactant in ethanol to obtain a first solution; dissolving a silver precursor in water to obtain a second solution; adding the second solution to the first solution to obtain a third solution; dissolving a reducing agent in water to obtain a reducing agent solution and adding the reducing agent solution to the third solution to obtain silver nano particles.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 7, 2014
    Assignee: TATA Chemicals Limited
    Inventors: Murali Sastry, Madakasira Narasimhachary Shashikala, Sumant Phadtare
  • Publication number: 20110017019
    Abstract: The invention relates to a process for the preparation of silver nano particles comprising dissolving a surfactant in ethanol to obtain a first solution; dissolving a silver precursor in water to obtain a second solution; adding the second solution to the first solution to obtain a third solution; dissolving a reducing agent in water to obtain a reducing agent solution and adding the reducing agent solution to the third solution to obtain silver nano particles
    Type: Application
    Filed: April 28, 2009
    Publication date: January 27, 2011
    Applicant: Tata Chemicals Limited
    Inventors: Murali Sastry, Madakasira Narasimhachary Shashikala, Sumant Phadtare
  • Patent number: 7759098
    Abstract: The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 20, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Priyabrata Mukherjee, Ahmad Absar, Deendayal Mandal, Satyajyoti Senapati, Mohammed Islam Khan, Murali Sastry, Rajiv Kumar
  • Publication number: 20090238740
    Abstract: The invention relates to a method of preparing sodium bicarbonate from trona containing sodium fluoride as an impurity comprising preparing a saturated solution of trona and filtering the trona solution to remove insoluble impurities; introducing carbon dioxide to the trona solution till the pH of the solution reaches the range of 7.5 to 8.75 and sodium carbonate in the trona solution is converted to sodium bicarbonate that precipitates; and recovering the precipitated sodium bicarbonate from the trona solution.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Applicant: TATA CHEMICALS LIMITED
    Inventors: Soumen SENSARMA, Sumant PHADTARE, Murali SASTRY
  • Publication number: 20080227167
    Abstract: The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.
    Type: Application
    Filed: May 29, 2008
    Publication date: September 18, 2008
    Applicant: Council of Scientific and Industrial Research (CISR)
    Inventors: Priyabrata Mukherjee, Absar Ahmad, Deendayal Mandal, Satyajyoti Senapati, Mohammed Islam Khan, Murali Sastry, Rajiv Kumar
  • Publication number: 20080200660
    Abstract: The present invention relates to a method for the hydrophobisation of DNA molecules comprising mixing an aqueous solution of the DNA molecule with a solution of a cationic lipid or a surfactant in an organic solvent under agitation for a period in the range of 30 to 60 minutes to obtain the hydrophobic DNA in organic phase.
    Type: Application
    Filed: June 29, 2006
    Publication date: August 21, 2008
    Inventors: Murali Sastry, Ashavani Kumar, Vidya Ramakrishnan, Krishnarajanagar N. Ganesh
  • Patent number: 7182894
    Abstract: The invention discloses a method for synthesizing hollow structured freestanding membrane having pore size of 2 to 200 nm which provides long-term stability that makes it viable for many practical applications such as protein separation and drug delivery.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: February 27, 2007
    Assignee: Council of Scientific & Industrial Research
    Inventors: Pandian Senthil Kumar, Periasamy Selva Kannan, Arvind More, Rahul Shingte, Prakash Wadgaonkar, Murali Sastry
  • Publication number: 20060141596
    Abstract: The present invention relates to a novel process for the immobilization of the enzyme on biocompatible gold nanoparticle encapsulated free-standing membranes. The binding of the enzyme occurs through the amine groups and cysteine residues to the gold nanoparticles. The free-standing gold nanoparticle membrane was synthesized at the interface between chloroform containing bis(2-(4-aminophenoxy)ethyl)ether (DAEE) and aqueous chloroauric acid solution. The membrane is formed spontaneously by the reduction of AuCl4? ions by DAEE, this process leading to the formation of gold nanoparticles. The concomitant process of oxidation of DAEE leads to the creation of a polymeric matrix in which the gold nanoparticles are embedded. The gold nanoparticle membrane is extremely stable, robust, easily handled, malleable and can be grown over large areas and thickness by suitably varying the experimental conditions.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Inventors: Sumant Phadtare, Murali Sastry
  • Publication number: 20060058517
    Abstract: The present invention relates to a method for the hydrophobisation of DNA molecules comprising mixing an aqueous solution of the DNA molecule with a solution of a cationic lipid or a surfactant in an organic solvent under agitation for a period in the range of 30 to 60 minutes to obtain the hydrophobic DNA in organic phase.
    Type: Application
    Filed: October 19, 2005
    Publication date: March 16, 2006
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Murali Sastry, Ashavani Kumar, Vidya Ramakrishnan, Krishnarajanagar Ganesh
  • Publication number: 20050239183
    Abstract: The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.
    Type: Application
    Filed: June 20, 2005
    Publication date: October 27, 2005
    Applicant: Council of Scientific and Industrial Research
    Inventors: Priyabrata Mukherjee, Ahmad Absar, Deendayal Mandal, Satyajyoti Senapati, Mohammed Khan, Murali Sastry, Rajiv Kumar
  • Publication number: 20050218540
    Abstract: The present invention discloses methods for making micron/nano sized (2 nm to 5 ?m) particles of various inorganic materials such as mineral/oxides/sulphides/metals/ceramics using aqueous foam, Aqueous foams of various anionic, cationic, non-ionic surfactant, casein proteins and their mixtures has been used for the preparation of suitable inorganic materials growth. Large scale synthesis of advanced inorganic materials such as various ceramics, minerals, oxides, sulphides and metal micron/nanoparticles of controlled shape and size can be obtained by mixing appropriate metal ions with the suitable cationic/anionic/non-ionic/casein protein/their mixtures, which is bubbled by air to form aqueous foams and thereafter their reduction/reaction to form the final product.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Murali Sastry, Debabrata Rautaray, Kaustav Sinha
  • Publication number: 20050214916
    Abstract: The present invention provides a biological process for the synthesis of oxide nanoparticles by simple exposure of suitable aqueous metal ions to a hydrolyzing fungus. The method specifically comprises reacting of a suitable electrolyte solution with a hydrolyzing wet fungus.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 29, 2005
    Applicant: Council of Scientific and Industrial Research
    Inventors: Ahmad Absar, Murali Sastry, Debabrata Rautaray
  • Publication number: 20050214194
    Abstract: This invention relates to a biological process for the preparation of shape and polymorph controlled mineral crystals by simple growth of roots from various seeds to a suitable aqueous metal ion.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 29, 2005
    Inventors: Absar Ahmad, Debabrata Rautaray, Ambarish Sanyal, Murali Sastry
  • Publication number: 20050199544
    Abstract: The invention discloses a method for synthesizing hollow structured freestanding membrane having pore size of 2 to 200 nm which provides long-term stability that makes it viable for many practical applications such as protein separation and drug delivery.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 15, 2005
    Inventors: Pandian Kumar, Periasamy Kannan, Arvind More, Rahul Shingte, Prakash Wadgaonkar, Murali Sastry
  • Publication number: 20050165120
    Abstract: A process for extraction of nanoparticles into aqueous phase by complexation with water soluble surfactants such as cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulfate (SDS) etc., wherein a bi-phasic mixture is prepared in which, hydrophobized nanoparticles are in organic medium, and surfactant molecules are in aqueous phase. An emulsion is formed on vigorous shaking of the bi-phasic mixture, and after phase separation metal nanoparticles transfer to aqueous medium.
    Type: Application
    Filed: January 22, 2004
    Publication date: July 28, 2005
    Inventors: Ashavani Kumar, Anita Swami, Murali Sastry
  • Publication number: 20040229328
    Abstract: The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.
    Type: Application
    Filed: June 15, 2004
    Publication date: November 18, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Priyabrata Mukherjee, Absar Ahmad, Deendayal Mandal, Satyajyoti Senapati, Mohammed Islam Khan, Murali Sastry, Rajiv Kumar
  • Publication number: 20040197224
    Abstract: A hybrid organic-inorganic composite film useful for glucose sensing in aqueous solutions is disclosed along with methods for manufacture thereof and a method of glucose sensing using such novel film.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 7, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Anand Mahadeo Gole, Ashavani Kumar, Sumant Phadtare, Murali Sastry
  • Patent number: 6783963
    Abstract: The process of the invention reports a new biological method, instead of chemical or physical methods, for preparing colloidal nano-sized metal sulphides using fungi.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: August 31, 2004
    Assignee: Council of Scientific & Industrial Research
    Inventors: Priyabrata Mukherjee, Deendayal Mandal, Absar Ahmad, Murali Sastry, Rajiv Kumar
  • Publication number: 20030186404
    Abstract: The process of the invention reports a new biological method, instead of chemical or physical methods, for preparing colloidal nano-sized metal sulphides using fungi.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Priyabrata Mukherjee, Deendayal Mandal, Absar Ahmad, Murali Sastry, Rajiv Kumar
  • Publication number: 20030118735
    Abstract: A hybrid organic-inorganic composite film useful for glucose sensing in aqueous solutions is disclosed along with methods for manufacture thereof and a method of glucose sensing using such novel film.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Anand Mahadeo Gole, Ashavani Kumar, Sumant Phadtare, Murali Sastry