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    • 1. 发明授权
    • Adsorption of gases by amine complexed Mn (II)
    • 通过胺络合的Mn(II)吸附气体
    • US4668255A
    • 1987-05-26
    • US792972
    • 1985-10-30
    • Rakesh Govind
    • Rakesh Govind
    • B01D53/02B01J20/00B01D53/14
    • B01D53/02B01J20/00
    • Amine complexed Mn(II) compounds reversibly adsorb sulfur dioxide and oxygen as well as nitrogen oxides, carbon monoxide, carbon dioxide and lower alkenes. More specifically, these compounds have the following formula:Mn(II)LX.sub.2where X represents F.sup.-, Br.sup.-, I.sup.-, SCN.sup.- or OH.sup.-. L is a ligand having the formulaN(R.sub.1).sub.n or R.sub.2 --N.dbd.N--R.sub.3wherein R.sub.1, R.sub.2 and R.sub.3 represents identical or different substituents generally including alkyl, aryl, cycloalkyl, heterocyclic and heterocyclic aromatic radicals and n is 1-3. The metal complexes are used to adsorb gases as a solid adsorbent, suspended on aluminum oxide or dissolved in a non-volatile solvent. The gas can be adsorbed at a low temperature in the range of 30.degree.-200.degree. C., and desorbed at a higher temperature in the range of 45.degree.-230.degree. C. or at a lower pressure.
    • 胺络合的Mn(II)化合物可逆地吸附二氧化硫和氧,以及氮氧化物,一氧化碳,二氧化碳和低级烯烃。 更具体地,这些化合物具有下式:Mn(II)LX2,其中X表示F-,Br-,I-,SCN-或OH-。 L是具有式N(R1)n或R2-N = N-R3的配体,其中R1,R2和R3表示相同或不同的取代基,通常包括烷基,芳基,环烷基,杂环和杂环芳族基团,n为1-3 。 金属络合物用于吸附作为固体吸附剂的气体,悬浮在氧化铝上或溶解在非挥发性溶剂中。 气体可以在30〜-200℃的低温下吸附,并在45〜230℃的较高温度或较低的压力下解吸。
    • 2. 发明申请
    • Enzymatically active compositions for suppressing sulfide generation and methods of use thereof
    • 用于抑制硫化物生成的酶活性组合物及其使用方法
    • US20100239555A1
    • 2010-09-23
    • US12657210
    • 2010-01-15
    • Rakesh GovindDavid Ferguson
    • Rakesh GovindDavid Ferguson
    • A01N63/00C12N9/02C12N1/20A01P1/00
    • C02F3/345C02F3/342C02F2101/101C02F2303/02
    • The present invention provides an enzymatically active composition for suppressing sulfide generation. The composition is free from sulfur dehydrogenase and comprises at least one enzyme having sufficient sulfide-production inhibiting activity in an acidic medium to at least inhibit biogenic sulfide production, and an oxidized nitrogenous inorganic salt present in an amount sufficient to act as an electron acceptor for the enzyme. The oxidized nitrogenous inorganic salt preferably is selected from an alkali metal nitrite, an alkaline earth metal nitrite, an alkali metal nitrate, an alkaline earth metal nitrate, or a mixture of two or more of the foregoing salts. The enzymatically active composition is free from viable bacteria and is non-toxic (i.e., has an oral LD50 in rats greater than 1000 mg/Kg of body weight at a concentration of about 25,000 parts per million (ppm) in water). The compositions of the present invention are useful for treating and removing biofilms, as well as inhibiting sulfide production in a variety of aqueous systems.
    • 本发明提供了抑制硫化物生成的酶活性组合物。 所述组合物不含硫脱氢酶,并且包含至少一种在酸性介质中具有足够的硫化物产生抑制活性以至至少抑制生物硫化物生成的酶,以及以足以充当电子受体的量的氧化的含氮无机盐 该酶。 氧化的无机氮盐优选选自碱金属亚硝酸盐,碱土金属亚硝酸盐,碱金属硝酸盐,碱土金属硝酸盐,或两种或多种上述盐的混合物。 酶活性组合物不含活细菌,是无毒的(即在大鼠中口服LD50大于1000mg / Kg体重,浓度为约25,000ppm(ppm))。 本发明的组合物可用于处理和除去生物膜,以及抑制各种水性体系中的硫化物生成。
    • 4. 发明申请
    • Nitric oxide sensor
    • 一氧化氮传感器
    • US20070181444A1
    • 2007-08-09
    • US11549425
    • 2006-10-13
    • Jonathan BernsteinRakesh Govind
    • Jonathan BernsteinRakesh Govind
    • G01F1/64G01N27/26
    • G01N27/4074G01N33/0037Y02A50/245
    • The present invention generally relates to sensors configured to sense concentrations of nitric oxide. The sensors of the present invention generally comprise a selectively permeable membrane, a semi-permeable reference electrode, and a sensing electrode. The membrane generally comprises a dispersed solid electrolyte. The solid electrolyte generally is a nitric oxide trapping agent configured to stabilize the nitric oxide to form stable, oxidizable nitric oxide complexes. The nitric oxide complexes may then diffuse through the membrane and the reference electrode to the sensing electrode where they are oxidized. An electrical current indicative of the concentration of the nitric oxide generated by the oxidation may be transmitted from the sensor to a picoammeter, which may be configured to measure the electrical current and to signal to a user of the sensor the concentration of the nitric oxide.
    • 本发明一般涉及被配置为感测一氧化氮浓度的传感器。 本发明的传感器通常包括选择性渗透膜,半渗透性参比电极和感测电极。 膜通常包含分散的固体电解质。 固体电解质通常是一氧化氮捕获剂,其被配置为稳定一氧化氮以形成稳定的可氧化的一氧化氮络合物。 一氧化氮复合物然后可以通过膜和参考电极扩散到感测电极,在那里它们被氧化。 指示由氧化产生的一氧化氮浓度的电流可以从传感器传输到皮安表,皮安表可以被配置成测量电流并向传感器的使用者发送一氧化氮的浓度信号。
    • 6. 发明授权
    • Adsorption of gases by amine and phosphine complexed Mn(II) and compounds
    • 通过胺和膦络合的Mn(II)和化合物吸附气体
    • US4713091A
    • 1987-12-15
    • US918701
    • 1986-10-20
    • Rakesh Govind
    • Rakesh Govind
    • B01D53/02B01J20/00B01D53/14
    • B01D53/02B01J20/223
    • Amine or diphosphine complexed Mn(II) compounds reversibly adsorb sulfur dioxide and oxygen as well as nitrogen oxides, carbon monoxide, carbon dioxide and lower alkenes. More specifically, these compounds have the following formula:Mn(II)LX.sub.2where X represents F.sup.-, Br.sup.-, Cl.sup.-, I.sup.-, SCN.sup.- or OH.sup.-. L is a ligand having the formula ##STR1## The metal complexes are used to adsorb gases as a solid adsorbent, suspended on aluminum oxide or dissolved in a non-volatile solvent. The gas can be adsorbed at a low temperature in the range of 30.degree.-200.degree. C., and desorbed at a higher temperature in the range of 45.degree.-230.degree. C. or at a lower pressure.
    • 胺或二膦络合的Mn(II)化合物可逆地吸附二氧化硫和氧,以及氮氧化物,一氧化碳,二氧化碳和低级烯烃。 更具体地说,这些化合物具有下式:Mn(II)LX2,其中X代表F-,Br-,Cl-,I-,SCN-或OH-。 L是具有下式的配体:金属络合物用于吸附作为固体吸附剂的气体,悬浮在氧化铝上或溶解在非挥发性溶剂中。 气体可以在30〜-200℃的低温下吸附,并在45〜230℃的较高温度或较低的压力下解吸。
    • 9. 发明授权
    • Enzymatically active compositions for suppressing sulfide generation and methods of use thereof
    • 用于抑制硫化物生成的酶活性组合物及其使用方法
    • US08535661B2
    • 2013-09-17
    • US12657210
    • 2010-01-15
    • Rakesh GovindDavid Ferguson
    • Rakesh GovindDavid Ferguson
    • A61K38/44
    • C02F3/345C02F3/342C02F2101/101C02F2303/02
    • The present invention provides an enzymatically active composition for suppressing sulfide generation. The composition is free from sulfur dehydrogenase and comprises at least one enzyme having sufficient sulfide-production inhibiting activity in an acidic medium to at least inhibit biogenic sulfide production, and an oxidized nitrogenous inorganic salt present in an amount sufficient to act as an electron acceptor for the enzyme. The oxidized nitrogenous inorganic salt preferably is selected from an alkali metal nitrite, an alkaline earth metal nitrite, an alkali metal nitrate, an alkaline earth metal nitrate, or a mixture of two or more of the foregoing salts. The enzymatically active composition is free from viable bacteria and is non-toxic (i.e., has an oral LD50 in rats greater than 1000 mg/Kg of body weight at a concentration of about 25,000 parts per million (ppm) in water). The compositions of the present invention are useful for treating and removing biofilms, as well as inhibiting sulfide production in a variety of aqueous systems.
    • 本发明提供了抑制硫化物生成的酶活性组合物。 所述组合物不含硫脱氢酶,并且包含至少一种在酸性介质中具有足够的硫化物产生抑制活性以至至少抑制生物硫化物生成的酶,以及以足以充当电子受体的量的氧化的含氮无机盐 该酶。 氧化的无机氮盐优选选自碱金属亚硝酸盐,碱土金属亚硝酸盐,碱金属硝酸盐,碱土金属硝酸盐,或两种或多种上述盐的混合物。 酶活性组合物不含活细菌,是无毒的(即在大鼠中口服LD50大于1000mg / Kg体重,浓度为约25,000ppm(ppm))。 本发明的组合物可用于处理和除去生物膜,以及抑制各种水性体系中的硫化物生成。