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公开(公告)号：US5266238A
公开(公告)日：1993-11-30
申请号：US632694
申请日：1990-12-24
CPC分类号： G02F1/0131 , G02B5/24
摘要： The present invention discloses a tunable, radiation filter comprising a highly ordered crystalline array of microparticles fixed in a polymerized hydrogel.
摘要翻译： 本发明公开了一种可调谐的辐射过滤器，其包括固定在聚合的水凝胶中的高度有序的微粒结晶阵列。
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公开(公告)号：US5368781A
公开(公告)日：1994-11-29
申请号：US149866
申请日：1993-11-10
CPC分类号： G02F1/0131 , G02B5/24
摘要： The present invention discloses a tunable, radiation filter comprising a highly ordered crystalline array of microparticles fixed in a polymerized hydrogel.
摘要翻译： 本发明公开了一种可调谐的辐射过滤器，其包括固定在聚合的水凝胶中的高度有序的微粒结晶阵列。
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公开(公告)号：US06589452B2
公开(公告)日：2003-07-08
申请号：US09791192
申请日：2001-02-23
IPC分类号： G03C100
CPC分类号： C07D209/48 , C07C211/29 , C07C211/49 , C07C245/08 , C07C271/20 , C09B23/148 , G02F1/0126 , G02F1/133362 , G02F2201/305 , G02F2202/02 , G02F2202/32
摘要： The present invention is related to photonic crystal devices that comprise novel mesoscopic periodic materials which comprise polymerized crystalline colloidal arrays (CCA) and at least one photosensitive component. Preferably, the photosensitive component is a photochromic molecule and more preferably the component is an azobenzene derivative. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, display devices and memory storage devices. The devices of the present invention permit the possibility to write with ultraviolet light and erase with visible light. In addition, the present invention is related to a functionalized polymerized crystalline colloidal array which preferably comprises reactive epoxide groups. The present invention is further directed to a photosensitive polymerized crystalline colloidal array.
摘要翻译： 本发明涉及包含新颖的介观周期性材料的光子晶体器件，其包含聚合的晶体胶体阵列（CCA）和至少一种感光组分。 优选地，光敏组分是光致变色分子，更优选组分是偶氮苯衍生物。 还公开了制造这些装置的方法。 本发明的装置在许多应用中是有用的，包括例如光开关，显示装置和存储器存储装置。 本发明的装置允许用紫外光写入并用可见光擦除的可能性。 此外，本发明涉及优选包含活性环氧基团的官能化聚合晶体胶体阵列。 本发明还涉及光敏聚合晶体胶体阵列。
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公开(公告)号：US6094273A
公开(公告)日：2000-07-25
申请号：US153871
申请日：1998-09-15
CPC分类号： G01L11/02 , G01K11/06 , G01K11/12 , G02F1/0147 , G02F1/172 , G02F2201/346 , G02F2202/022
摘要： Devices that comprise novel, mesoscopically periodic materials that combine crystalline colloidal array (CCA) self-assembly with the temperature ined volume phase transitions of various materials, preferably poly(N-isopropylacrylamide) (PNIPAM) are disclosed. In one embodiment, a PNIPAM CCA is formed in an aqueous media and contained within cell means. In another embodiment, a CCA of charged particles is formed and polymerized in a PNIPAM hydrogel. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, optical limiters, optical filters, display devices and processing elements. The devices are further useful as membrane filters. All of these devices have the feature of being tunable in response to temperature. Devices that change diffracted wavelength in response to pressure are also disclosed.
摘要翻译： 公开了包含将晶体胶体阵列（CCA）自组装与各种材料（优选聚（N-异丙基丙烯酰胺）（PNIPAM））的温度诱导的体积相变的新颖的中视周期性材料的装置。 在一个实施方案中，PNIPAM CCA在水性介质中形成并包含在细胞装置内。 在另一个实施方案中，形成带电粒子的CCA并在PNIPAM水凝胶中聚合。 还公开了制造这些装置的方法。 本发明的装置在许多应用中是有用的，包括例如光开关，光限制器，滤光器，显示装置和处理元件。 这些装置可用作膜过滤器。 所有这些设备都具有响应于温度可调谐的特征。 还公开了响应于压力改变衍射波长的装置。
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公开(公告)号：US06001251A
公开(公告)日：1999-12-14
申请号：US179151
申请日：1998-10-26
申请人： Sanford A. Asher , Jay Henis
发明人： Sanford A. Asher , Jay Henis
CPC分类号： B82Y20/00 , C30B29/60 , C30B5/00 , G02B5/203 , G02B5/206 , G02B6/1225 , G02B6/13 , G02B2006/12109 , G02B2006/12176 , Y10S977/889 , Y10T428/29
摘要： A method of making a solid filter material which filters a predetermined wavelength band from a broader spectrum of radiation is provided. The method includes creating a colloidal structure composed of particles dispersed within a medium, and introducing a solvent thereto. Thereafter, the solvent is evaporated and the remaining structure solidifies into a solid crystalline array. The particles can also be fused together by polymerization using one of several methods which are provided. In another embodiment, methods of filtering submicron particles have been developed which consists of establishing a gel membrane from a crystalline colloidal array with an interstice size less than or equal to the particles to be filtered are disclosed. The gel membrane may employ anisotropic interstices of submicron size and is stretchable or compressible mechanically. The method also includes stacking a plurality of gel membrane filters so that the material to be filtered sequentially flows through the interstices of the filters leaving different size submicron particles on different levels of said filters. Another embodiment of the invention has a plurality of particles having a positive or negative charge in a lattice and has oppositely charged mobile particles movable into and out of the interstices of the gel membrane. An electric field is employed to move the mobile particles to close or open the interstices of the lattice. The mobile particles can also pump material through the interstices.
摘要翻译： 提供了制造从宽范围的辐射过滤预定波段的固体过滤材料的方法。 该方法包括产生由分散在介质中的颗粒构成的胶体结构，并向其中引入溶剂。 此后，蒸发溶剂，其余结构固化为固体晶体阵列。 通过使用提供的几种方法之一通过聚合也可将颗粒熔合在一起。 在另一个实施方案中，已经开发了过滤亚微米颗粒的方法，其包括由晶体尺寸小于或等于待过滤颗粒的晶体胶体阵列建立凝胶膜。 凝胶膜可以使用亚微米尺寸的各向异性空隙，并且是机械可拉伸的或可压缩的。 该方法还包括堆叠多个凝胶膜过滤器，使得待过滤的材料依次流过过滤器的间隙，在不同级别的所述过滤器上留下不同尺寸的亚微米颗粒。 本发明的另一个实施方案具有多个在晶格中具有正电荷或负电荷的颗粒，并且具有可移入和移出凝胶膜间隙的相反电荷的可移动颗粒。 使用电场来移动移动颗粒以关闭或打开格子的间隙。 移动颗粒还可以通过间隙泵送材料。
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公开(公告)号：US5854078A
公开(公告)日：1998-12-29
申请号：US819240
申请日：1997-03-17
申请人： Sanford A. Asher , John H. Holtz
发明人： Sanford A. Asher , John H. Holtz
IPC分类号： G01N21/41 , B01J13/00 , C08F2/00 , C08F2/16 , C08F2/48 , C08F220/56 , G01J3/18 , G01N21/47 , G01N21/77 , G01N21/78 , G01N31/22 , G01N33/00 , G01N33/48 , G02B26/00
CPC分类号： B01J13/00 , B01J13/0065 , G01J3/18 , G01N21/4788 , G01N21/77 , G01N31/222 , G02B26/002 , G01N2021/772 , G01N2021/7723 , Y10S436/805 , Y10S436/811 , Y10T436/144444 , Y10T436/204998 , Y10T436/205831 , Y10T436/207497 , Y10T436/209163
摘要： Novel sensor devices composed of a crystalline colloidal array (CCA) polymerized in a hydrogel are disclosed. The hydrogels are characterized as being capable of shrinking and swelling in response to specific stimuli applied thereto. As the hydrogels shrink or swell, the lattice structure of the CCA embedded therein changes, thereby changing the wavelength of light diffracted by the CCA. Thus by monitoring the change in diffracted wavelength, the concentration of a stimulus is determined. The gels can be modified to sense numerous different stimuli. The sensor devices are specific in that they are modified to react with only one species or family of species. These sensors have various applications in areas including, for example, environmental and chemical systems, chemomechanical systems, sensor devices and medical diagnostic tools. Various methods for making and using these devices are also disclosed.
摘要翻译： 公开了由在水凝胶中聚合的结晶胶体阵列（CCA）组成的新型传感器装置。 水凝胶的特征在于能够响应于施加于其上的特定刺激而收缩和膨胀。 当水凝胶收缩或膨胀时，嵌入其中的CCA的晶格结构发生变化，从而改变由CCA衍射的光的波长。 因此，通过监测衍射波长的变化，确定刺激的浓度。 可以修改凝胶以感测许多不同的刺激。 传感器装置是特定的，因为它们被修改为仅与一个物种或一系列物种反应。 这些传感器在包括例如环境和化学系统，化学机械系统，传感器装置和医疗诊断工具的领域中具有各种应用。 还公开了制造和使用这些装置的各种方法。
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7.发明申请公开(公告)号：US20160223439A1
公开(公告)日：2016-08-04
申请号：US15051376
申请日：2016-02-23
CPC分类号： G01N1/38 , G01N15/0211 , G01N21/01 , G01N21/4788
摘要： A method of preparation of a 2-D array of particles comprising: mixing the particles and a first liquid, the first liquid having the properties of being soluble in water and reducing surface tension of a water surface; adding the mixture to the water surface; and transferring the 2-D array onto a solid surface. A composition comprising: a 2-D array of particles; and a polymer substantially enveloping the 2-D array of particles.
摘要翻译： 一种制备2-D颗粒阵列的方法，包括：将颗粒和第一液体混合，第一液体具有可溶于水的性质并降低水表面的表面张力; 将混合物加入水面; 并将2-D阵列转移到固体表面上。 一种组合物，其包含：二维数组的颗粒; 和基本上包围2-D颗粒阵列的聚合物。
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公开(公告)号：US09304074B2
公开(公告)日：2016-04-05
申请号：US13553555
申请日：2012-07-19
CPC分类号： G01N1/38 , G01N15/0211 , G01N21/01 , G01N21/4788
摘要： A method of preparation of a 2-D array of particles comprising: mixing the particles and a first liquid, the first liquid having the properties of being soluble in water and reducing surface tension of a water surface; adding the mixture to the water surface; and transferring the 2-D array onto a solid surface. A composition comprising: a 2-D array of particles; and a polymer substantially enveloping the 2-D array of particles.
摘要翻译： 一种制备2-D颗粒阵列的方法，包括：将颗粒和第一液体混合，第一液体具有可溶于水的性质并降低水表面的表面张力; 将混合物加入水面; 并将2-D阵列转移到固体表面上。 一种组合物，其包含：二维数组的颗粒; 和基本上包围2-D颗粒阵列的聚合物。
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9.发明授权公开(公告)号：US08822571B2
公开(公告)日：2014-09-02
申请号：US11888274
申请日：2007-07-31
申请人： Matti Ben-Moshe , Sanford A. Asher , Dan Qu , Jla Luo
发明人： Matti Ben-Moshe , Sanford A. Asher , Dan Qu , Jla Luo
CPC分类号： C30B5/00 , B01J13/16 , B82Y30/00 , C01G9/02 , C01G9/08 , C01P2004/32 , C01P2004/64 , C01P2004/84 , C01P2006/40 , C30B29/48 , C30B29/605
摘要： Disclosed are a new composite material and a process for synthesizing highly charged, highly monodisperse, core-shell particles with high refractive index cores, as well as stable, long lasting crystalline colloidal arrays (CCAs) formed thereof. A preferred embodiment of the core particle can be highly monodisperse zinc sulfide (ZnS) particles and a preferred embodiment of the shell can be highly charged polyelectrolytes. The CCAs formed thereof are charge stabilized photonic crystals that shows distinctive first and second order Bragg diffraction peaks whose locations vary over a wide spectral region from UV through visible to IR, with unusually strong intensity and broad band width due to the high index of refraction. These high refractive index particles are useful in applications such as optical filters, optical coatings, cosmetics and photonic crystals sensors and devices.
摘要翻译： 公开了一种新的复合材料和用于合成具有高折射率芯的高电荷，高度单分散的核 - 壳颗粒以及由其形成的稳定的，持久的结晶胶体阵列（CCA）的方法。 核心颗粒的优选实施方案可以是高度单分散的硫化锌（ZnS）颗粒，并且壳的优选实施方案可以是高度带电的聚电解质。 由其形成的CCA是电荷稳定的光子晶体，其显示了不同的第一和第二布拉格衍射峰，其位置在从UV到可见光到IR的宽光谱区域上变化，由于高的折射率，具有非常强的强度和宽的带宽。 这些高折射率颗粒可用于诸如光学滤光器，光学涂层，化妆品和光子晶体传感器和装置的应用中。
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10.发明授权Hydrogel materials with crystalline colloidal array of watervoids for detection and macromolecule separations 失效水凝胶材料具有用于检测和大分子分离的水溶性晶体胶体阵列公开(公告)号：US06414043B1
公开(公告)日：2002-07-02
申请号：US09344741
申请日：1999-06-25
申请人： Sanford A. Asher , Lei Liu
发明人： Sanford A. Asher , Lei Liu
IPC分类号： C08J926
CPC分类号： B01J13/0065 , B01J13/02
摘要： A method of making a novel composition of a porous medium comprising volume elements of both voids and pores wherein the voids are much larger than the mean size of the pores. The method includes a first step of preparation of a porous medium comprising solid particles the approximate size selected for the voids and pores as volume elements and a second step of removing the particles by etching out with hydrofluoric acid or other means to form a porous medium comprising both voids and pores. In another embodiment, the voids are prepared from Bow etching out of a polymeric hydrogel silica particles which were allowed to self-assemble as a crystalline colloidal array prior to formation of the polymeric hydrogel around them, thereby forming a porous medium containing a crystalline colloidal array of voids containing aqueous solution. In another embodiment, a method of partitioning macromolecules between a solution comprising the macromolecules, and the voids and pores of a porous medium. The method includes partitioning of macromolecules between voids, pores and the adjacent solution as used in chromatography, electrophoresis, filtration, extraction, other separation process, drug delivery devices, timed-release devices, and semi-homogeneous catalytic reactors. In another embodiment, a method of using Bragg diffraction for detection and monitoring partitioning of macromolecules in the voids comprised in a porous medium comprising a crystalline colloidal array of voids which are much larger than the mean pore size of the medium.
摘要翻译： 一种制备多孔介质的新组合物的方法，其包括空隙和孔隙的体积元素，其中空隙远大于孔的平均尺寸。 该方法包括制备多孔介质的第一步骤，所述多孔介质包括固体颗粒，所述固体颗粒的大小选择为孔隙和孔隙作为体积元素，并且通过用氢氟酸或其它方法蚀刻除去颗粒的第二步骤形成多孔介质，所述第二步骤包括 空隙和孔隙。 在另一个实施方案中，从聚合物水凝胶二氧化硅颗粒的弓蚀刻制备空隙，在聚合物水凝胶二氧化硅颗粒周围形成聚合物水凝胶之前允许其自组装为结晶胶体阵列，从而形成含有结晶胶体阵列的多孔介质 的含水溶液的空隙。 在另一个实施方案中，在包含大分子的溶液与多孔介质的空隙和孔之间分配大分子的方法。 该方法包括在层析，电泳，过滤，萃取，其他分离过程，药物递送装置，定时释放装置和半均相催化反应器中使用的空隙，孔和相邻溶液之间分配大分子。 在另一个实施方案中，使用布拉格衍射来检测和监测包含在多孔介质中的空隙中的分配的方法，所述多孔介质包含比介质的平均孔径大得多的空洞的晶体胶体阵列。
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