Patents Assigned to National Science and Technology
  • Patent number: 9000003
    Abstract: The present invention is anti-folate antimalarials with dual-binding modes of the general formula (I) [refer to structure in the abstract] wherein R1 and R2 which may be the same or different are independently selected from methyl or ethyl or alkylphenyl, R3 is independently hydrogen, halide, lower alkyl substituted with ester, carboxylic, amide, and ether. Linker is X(CH2)nY wherein X and Y which may be the same or different are independently selected from oxygen, carbon, nitrogen, substituted phenyl where n is an integer from 1 to 2-6, or pharmaceutically acceptable salts therefore. The anti-folate antimalarials with dual-binding modes act as novel inhibitors with good inhibition constants against wild-type, double (C59R+SIOSN), triple (N51+C59R+SIOSN, C59R+S 1 OSN+I164L), and quadruple (N51+C59R+S108N+I164L) mutant enzymes. The compounds are also effective against wild type (Tm4/S.2) and mutants (K1CB1, W2, Cs1-2 and V1/S) malaria parasites.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: April 7, 2015
    Assignee: National Science and Technology Development Agency
    Inventors: Bongkoch Tarnchompoo, Penchit Chitnumsub, Sumalee Kamchonwongpaisan, Philip James Shaw, Roonglawan Rattanajak, Sinothai Poen, Tosapol Anukunwithaya, Chayaphat Wongsombat, Yongyuth Yuthavong
  • Publication number: 20140295478
    Abstract: The objective of this invention is to create a double thyA folA knockout Escherichia coli (E. coli) strain for antifolate screening against DHFR of malaria and other parasites. This strain is used together with a plasmid expressing DHFR-TS from the desired pathogenic organism, which constitutes an anti-DHFR assay against the pathogenic organism of interest. The benefit of this invention is that there is no interference from either host DHFR or trimethoprim, a bacterial DHFR inhibitor. This tool is easy to use and maintain. It provides quick and reliable results as compared with conventional anti-malarial and anti-parasitic assays. This invention should facilitate discovery of new anti-DHFR compounds against malaria and other parasitic diseases.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 2, 2014
    Applicant: National Science and Technology Development Agency
    Inventor: Nangnoy Chuaymung
  • Patent number: 8697777
    Abstract: The invention relates to plastic compounds for preparing films in a masterbatch containing zeolite with surfaces modified by silylation reaction. The films can be obtained through thermoplastic processing by blending the masterbatch with polymers such as polyolefins and polystyrene. The masterbatch includes styrene-b-(ethylene-ran-butylene)-b-styrene copolymers with styrene to ethylene-ran-butylene content of 12:88 to 14:86, and zeolites surfaces modified by silylation reaction with organosilane compound, in 30% to 70% by weight of copolymer with zeolite. The organosilane formula is R1nSiR2R3-n, where R is methoxy, ethoxy or chloro group, R1 is methyl group, R2 is functional group capable of a forming ?-? interaction from phenyl, phenylethyl, vinyl, or propyl methacrylate groups, and n is 0 and 2.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 15, 2014
    Assignees: National Science & Technology Development Agency, King Mongkut's Institute of Technology Ladkrabang
    Inventors: Tawan Sooknoi, Chonlada Ritvirulh, Asira Fuongfuchat, Doungporn Sirikittikul, Phatchareeya Raksa
  • Patent number: 8563330
    Abstract: The invention provides a device and method for the rapid identification of patients suspected of having thalassemia. The invention provides a test strip for the aqueous detection of thalassemia related proteins in whole blood. The test strip includes antibodies specific to the gamma 4, (?4) protein and provides easy visual discrimination between a positive result and a negative result. The invention can be used in remote or clinical settings.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: October 22, 2013
    Assignee: National Science and Technology Development Agency
    Inventors: Watchara Kasinrerk, Chatchai Tayapiwatana, Thanusak Tatu, Suthat Fucharoen, Sawitree Chiampanichayakul
  • Patent number: 8501893
    Abstract: A synthetic method for preparing dual curable (e.g., thermal and light curable) silicone compositions is provided. The first step being a chemical modification of silanichydride bonds in cyclic siloxane monomer by the hydrosilylation reaction with acrylate-/methacrylate-containing allylic monomer. The second step being a ring-opening polymerization of the acrylate-/methacrylate-functionalized cyclic siloxane monomer with siloxane monomers using an oligosiloxane as a chain terminator.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: August 6, 2013
    Assignee: National Science and Technology Development Agency
    Inventors: Wanida Janvikul, Boonlom Thavornyutikarn, Paradorn Ngamdee
  • Publication number: 20130038143
    Abstract: A zero power standby system for controlling electric appliances is able to wait for switch on instructions without any power consumption. This is done by a remote controller (1) transmitting power in the form of an electromagnetic field, light, or audio signal to a power receiving section (2) of a control signal receiving device (13). The power receiving section will then use the received power to force a multi-switch section (7) to connect between a power supply and a control signal receiving section (9) and a control signal processing section (3) and put the appliance into its usual running mode. When a user desires to turn off the electric appliance, the system stops supplying power to the control signal receiving section (9) and the control signal processing section (3) by turning off multi-switch section (7) and putting the electric appliance back to its zero power standby mode (i.e. consuming no power). Therefore, wasting of electrical energy in the standby mode is reduced to zero.
    Type: Application
    Filed: October 18, 2012
    Publication date: February 14, 2013
    Applicant: NATIONAL SCIENCE AND TECHNOLOGY DEVELOPMENT AGENCY
    Inventor: NATIONAL SCIENCE AND TECHNOLOGY DEVE
  • Patent number: 8372250
    Abstract: A gas-timing control method for depositing metal oxynitride and transition metal oxynitride (Mx(ON)y) films on glass and flexible substrates using reactive radio frequency magnetron sputtering, without substrate heating. A system includes a sputtering chamber, substrates, targets, three mass flow controllers controlled respective flow rates of argon, nitrogen and oxygen gases alternately and intermittently into the sputtering chamber, and a radio frequency generator with 13.56 MHz which irradiated in the sputtering chamber to decompose sputtering gases. The flow rate ratio of oxygen+nitrogen/argon is at least 0.02, the flow rate ratio of oxygen/nitrogen is at least 0.01, and the sequence timing of argon, nitrogen and oxygen gases alternately or mixed into the sputtering chamber at least 1 sec.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: February 12, 2013
    Assignees: National Science and Technology Development Agency, King Mongkut's Institute of Technology Ladkrabang
    Inventors: Jiti Nukeaw, Supanit Porntheeraphat, Apichart Sungthong
  • Publication number: 20110179518
    Abstract: The aromatic compound 2-acetyl-1-pyrroline-is the major potent flavor component of all aromatic rice and other plants. This present invention provides transgenic plants in which 2-acetyl-1-pyrroline is synthesized at a level greater than in naturally occurring non-aromatic varieties. The transgenic plants have reduced expression of the Os2AP gene and protein, resulting in an aromatic phenotype.
    Type: Application
    Filed: December 6, 2010
    Publication date: July 21, 2011
    Applicants: NATIONAL SCIENCE & TECHNOLOGY DEVELOPMENT AGENCY, KASETSART UNIVERSITY
    Inventors: APICHART VANAVICHIT, SOMVONG TRAGOONRUNG, THEERAYUT TOOJINDA, SAMART WANCHANA, WINTAI KAMOLSUKYUNYONG, SIWARET ARIKIT
  • Patent number: 7978047
    Abstract: A variable resistance element comprises a variable resistor of strongly-correlated material sandwiched between two metal electrodes, and the electric resistance between the metal electrodes varies when a voltage pulse is applied between the metal electrodes. Such a switching operation as the ratio of electric resistance between low and high resistance states is high can be attained by designing the metal electrodes and variable resistor appropriately based on a definite switching operation principle. Material and composition of the first electrode and variable resistor are set such that metal insulator transition takes place on the interface of the first electrode in any one of two metal electrodes and the variable resistor by applying a voltage pulse. Two-phase coexisting phase of metal and insulator phases can be formed in the vicinity of the interface between the variable resistor and first electrode by the work function difference between the first electrode and variable resistor.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: July 12, 2011
    Assignees: Sharp Kabushiki Kaisha, National Science and Technology
    Inventors: Yasunari Hosoi, Shigeo Ohnishi, Yasushi Ogimoto, Takashi Oka, Naoto Nagaosa, Yoshinori Tokura
  • Patent number: 7955610
    Abstract: The present invention provides an antimicrobial composition for topical application, preferably for treating acne, and a method for using the composition. The composition comprises a photocatalyst mixture comprising a photocatalyst, such as titanium dioxide, and sodium perborate, magnesium silicate, and citric acid. The photocatalyst mixture is in an amount effective as an antimicrobial under visible light. The method comprises applying the composition to a target area of the skin and exposing the area to visible light.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: June 7, 2011
    Assignees: National Science and Technology Development Agency, Nonami Science (Thailand) Co., Ltd.
    Inventors: Wiwut Tanthapanichakoon, Uracha Rungsardthong, ML Sumarn Saraya, Wasana Thaitae
  • Patent number: 7847083
    Abstract: The aromatic compound 2-acetyl-1-pyrroline is the major potent flavor component of all aromatic rice. This present invention provides nucleic acids associated with grain aroma, including isolated nucleic acids containing SEQ ID NO:2 and cells containing such nucleic acids. These nucleic acids encode betaine aldehyde dehydrogenase (BADH2).
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: December 7, 2010
    Assignees: National Science & Technology Development Agency, Kasetsart University
    Inventors: Apichart Vanavichit, Somvong Tragoonrung, Theerayut Toojinda, Samart Wanchana, Wintai Kamolsukyunyong
  • Patent number: 7838442
    Abstract: A method for producing a solar cell including the steps of forming a p-type microcrystalline silicon oxide layer on a glass substrate using a PECVD method and raw gases comprising Silane gas, Diborane gas, Hydrogen gas and Carbon Dioxide gas. The method may employ a frequency of between about 13.56-60 MHz. The PECVD method may be performed at a power density of between about 10-40 mW/cm2 and a pressure of between about 0.5-2 Torr, and with a ratio of Carbon Dioxide to Silane of between about 0.10-0.24; a ratio of Diborane to Silane of 0.10 or less, and a ratio of Silane to Hydrogen of 0.01 or less. A tandem solar cell structure may be formed by forming top and bottom layers by the method described above, and placing the top layer over the bottom layer.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 23, 2010
    Assignee: National Science and Technology Development Agency
    Inventors: Porponth Sichanugrist, Nirut Pingate, Decha Yotsaksri
  • Patent number: 7722885
    Abstract: The invention includes a genetic construct and a mutant dengue virus, designated as strain MBU 01-2002, which is a mutant dengue virus generated by genetic modification of the 13-amino acid sequence just proximal to the pr-M junction within the prM coding region of the genome. The modification involves increasing the number of positively charged amino acids and abolishing the negatively charged amino acids in this pr-M junction sequence. The mutant dengue virus strain MBU 01-2002 possesses less prM protein on the viral envelope than the prototype dengue virus, is capable of inducing infected C6/36 cells to fuse at neutral pH, is as efficient as the prototype virus in the intracellular multiplication, but is defective in its release from infected cells.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: May 25, 2010
    Assignee: National Science and Technology Development Agency
    Inventors: Poonsook Keelapang, Nopporn Sittisombut, Watchara Kasinrerk, Prida Malasit
  • Patent number: 7671271
    Abstract: A method for producing a solar cell including the steps of forming a p-type microcrystalline silicon oxide layer on a glass substrate using a PECVD method and raw gases comprising Silane gas, Diborane gas, Hydrogen gas and Carbon Dioxide gas. The method may employ a frequency of between about 13.56-60 MHz. The PECVD method may be performed at a power density of between about 10-40 mW/cm2 and a pressure of between about 0.5-2 Torr, and with a ratio of Carbon Dioxide to Silane of between about 0.10-0.24; a ratio of Diborane to Silane of 0.10 or less, and a ratio of Silane to Hydrogen of 0.01 or less. A tandem solar cell structure may be formed by forming top and bottom layers by the method described above, and placing the top layer over the bottom layer.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: March 2, 2010
    Assignee: National Science and Technology Dev. Agency
    Inventors: Porponth Sichanugrist, Nirut Pingate, Decha Yotsaksri
  • Publication number: 20090192282
    Abstract: A synthetic method for preparing dual curable (e.g., thermal and light curable) silicone compositions is provided. The first step being a, chemical modification of silanichydride bonds in cyclic siloxane monomer by the hydrosilylation reaction with acrylate-/methacrylate-containing allylic monomer. The second step being a ring-opening polymerization of the acrylate-/methacrylate-functionalized cyclic siloxane monomer with siloxane monomers using an oligosiloxane as a chain terminator.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: NATIONAL SCIENCE AND TECHNOLOGY DEVELOPMENT AGENCY
    Inventors: Wanida Janvikul, Boonlom Thavornyutikarn, Paradorn Ngamdee
  • Publication number: 20090170202
    Abstract: The aromatic compound 2-acetyl-1-pyrroline-is the major potent flavor component of all aromatic rice. This present invention provides transgenic rice plants in which 2-acetyl-1-pyrroline is synthesized at a level greater than in naturally occurring non-aromatic varieties. The transgenic plants have reduced expression of the Os2AP gene and protein, resulting in an aromatic phenotype.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 2, 2009
    Applicants: NATIONAL SCIENCE & TECHNOLOGY DEVELOPMENT AGENCY, KASETSART UNIVERSITY
    Inventors: Apichart Vanavichit, Somvong Tragoonrung, Theerayut Toojinda, Samart Wanchana, Wintai Kamolsukyunyong
  • Publication number: 20090117685
    Abstract: A method for producing a solar cell including the steps of forming a p-type microcrystalline silicon oxide layer on a glass substrate using a PECVD method and raw gases comprising Silane gas, Diborane gas, Hydrogen gas and Carbon Dioxide gas. The method may employ a frequency of between about 13.56-60 MHz. The PECVD method may be performed at a power density of between about 10-40 mW/cm2 and a pressure of between about 0.5-2 Torr, and with a ratio of Carbon Dioxide to Silane of between about 0.10-0.24; a ratio of Diborane to Silane of 0.10 or less, and a ratio of Silane to Hydrogen of 0.01 or less. A tandem solar cell structure may be formed by forming top and bottom layers by the method described above, and placing the top layer over the bottom layer.
    Type: Application
    Filed: October 8, 2008
    Publication date: May 7, 2009
    Applicant: NATIONAL SCIENCE AND TECHNOLOGY DEVELOPMENT AGENCY
    Inventors: Porponth Sichanugrist, Nirut Pingate, Decha Yotsaksri
  • Publication number: 20090004721
    Abstract: The invention includes a genetic construct and a mutant dengue virus, designated as strain MBU 01-2002, which is a mutant dengue virus generated by genetic modification of the 13-amino acid sequence just proximal to the pr-M junction within the prM coding region of the genome. The modification involves increasing the number of positively charged amino acid and abolishing the negatively charged amino acid in this pr-M junction sequence. The mutant dengue virus strain MBU 01-2002 possesses less prM protein on the viral envelope than the prototype dengue virus, is capable of inducing infected C6/36 cells to fuse at neutral pH, is as efficient as the prototype virus in the intracellular multiplication, but is defective in its release from infected cells.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 1, 2009
    Applicants: National Science and Technology Development Agency, Thailand Research Fund
    Inventors: Poonsook Keelapang, Nopporn Sittisombut, Watchara Kasinrerk, Prida Malasit
  • Publication number: 20080233659
    Abstract: The invention provides a device and method for the rapid identification of patients suspected of having thalassemia. The invention provides a test strip for the aqueous detection of thalassemia related proteins in whole blood. The test strip includes antibodies specific to the gamma 4, (?4) protein and provides easy visual discrimination between a positive result and a negative result. The invention can be used in remote or clinical settings.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Applicant: National Science and Technology Development Agency (NSTDA)
    Inventors: Watchara Kasinrerk, Chatchai Tayapiwatana, Thanusak Tatu, Suthat Fucharoen, Sawitree Chiampanichayakul
  • Patent number: 7414069
    Abstract: Three new alkaloids, Hirsutellones A, B, and C, are produced in cultures of fungus such as Hirsutella nivea strain BCC 2594 and Trichoderma sp. strain BCC 7579. The Hirsutellones exhibited potent growth inhibitory activity against Mycobacterium tuberculosis (H37Ra strain) with an MIC value of 0.78 ?g/ml, while showing weak or no cytotoxicity to mammalian cells. Therefore, Hirsutellones and pharmaceutical compositions containing Hirsutellones may be useful for the treatment of tuberculosis. Also described herein are methods of isolating the Hirsutellones.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: August 19, 2008
    Assignee: National Center for Genetic Engineering & Biotechnology, National Science & Technology Development Agency
    Inventors: Masahiko Isaka, Nigel Leslie Hywel-Jones, Sayanh Somrithipol, Kanyawim Kirtikara, Prasit Palittapongarnpim, Yodhathai Thebtaranonth