-
公开(公告)号:US06913877B1
公开(公告)日:2005-07-05
申请号:US10024654
申请日:2001-12-17
申请人: Frank W. R. Chaplen , William H. Gerwick , Goran Jovanovic , Wojtek Kolodziej , Jim Liburdy , Phil McFadden , Brian Kevin Paul , Thomas K. Plant , Janine E. Trempy , Corwin Willard
发明人: Frank W. R. Chaplen , William H. Gerwick , Goran Jovanovic , Wojtek Kolodziej , Jim Liburdy , Phil McFadden , Brian Kevin Paul , Thomas K. Plant , Janine E. Trempy , Corwin Willard
CPC分类号: G01N33/542 , C12Q1/04
摘要: Methods of detecting bioactive compounds include exposing compounds to one or more classes of chromatophores and measuring or sensing associated changes in one or more of the chromatophores. Representative methods permit identification and quantification of neurotransmitters, toxins, hormones, and chemical warfare agents with or without prior knowledge of the content of a sample. In some examples, chromatophores based on Betta fish are used. Cytosensor apparatus using such chromatophores include means for exposing chromatophores to a sample and optical detection systems for assessing changes in chromatophore optical properties. Compounds can be identified or quantified based on a red-green-blue or hue saturation-value representations of transmitted or reflected light or based on other characterizations of transmitted or reflected light.
摘要翻译: 检测生物活性化合物的方法包括将化合物暴露于一类或多种色素,并测量或检测一种或多种色素中的相关变化。 代表性的方法允许在有或没有样品内容的知识的情况下鉴定和定量神经递质,毒素,激素和化学战剂。 在一些实例中,使用基于Betta鱼的色素。 使用这种色素的细胞传感器装置包括用于将染色体暴露于样品的装置和用于评估染色质光学性质变化的光学检测系统。 可以基于透射或反射光的红 - 绿 - 蓝或色相饱和度值表示或基于透射或反射光的其它表征来鉴定或量化化合物。
-
公开(公告)号:US4085387A
公开(公告)日:1978-04-18
申请号:US715461
申请日:1976-08-18
申请人: Charles K. Asawa , Thomas K. Plant
发明人: Charles K. Asawa , Thomas K. Plant
CPC分类号: G02F1/174
摘要: Apparatus is disclosed for modulating the R(18) or the R(24) lines of the (00.degree.1 - 10.degree.0) vibrational band of a C.sup.13 O.sub.2.sup.16 laser using Stark-tuned absorption resonances in N.sup.14 H.sub.3. A dc electric field is applied to a Stark cell containing N.sup.14 H.sub.3 gas to tune the asQ(6,6) absorbing transition in N.sup.14 H.sub.3 so as to overlap the R(18) laser line or the asQ(2,2) transition so as to overlap the R(24) line. Modulating frequencies approaching 300 MHz can be employed, and a 100% modulation depth is achievable with audio modulating frequencies. Unsaturated modulation has been obtained using a Stark cell of 10 cm length and containing N.sup.14 H.sub.3 gas at a pressure of 0.45 Torr for a laser power density of 12 watts per cm.sup.2.
摘要翻译: 公开了使用N14H3中的Stark调谐吸收共振来调制C13O216激光器(00-1-10℃)振动带的R(18)或R(24)线的装置。 将直流电场施加到含有N14H3气体的Stark单元以调节N14H3中的as(6,6)吸收跃迁,以便与R(18)激光线或asQ(2,2)跃迁重叠,以便重叠 R(24)线。 可以采用接近300MHz的调制频率,并且可以通过音频调制频率实现100%的调制深度。 使用10cm长的Stark单元并且在0.45Torr的压力下含有N14H3气体,对于12w / cm 2的激光功率密度已经获得不饱和调制。
-