Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, TX, 78712, USA.
Scientific Research Academy and School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China.
Adv Mater. 2018 Mar;30(11). doi: 10.1002/adma.201705480. Epub 2018 Jan 22.
Traditional (1D, 2D, and 3D) codes are widely used to provide convenient readouts of encoded information. However, manipulating and transforming the encoded information is typically difficult to achieve. Here, the preparation of three fluorescent (blue, green, and red) hydrogels containing both tetracationic receptor-anion recognition motifs and gel-specific fluorophores is reported, which may be used as building blocks to construct through physical adhesion fluorescent color 3D codes (Code A, Code B, and Code C) that may be read out by a smartphone. As a result, parts of the individual gel components that make up Code B can be replaced with other gel building blocks to form Code A via a cut and adhesion approach. A fluorophore responsive to ammonia is further incorporated into one of the hydrogels. This allows the gel block-derived pattern that makes up Code C to be converted to Code A by chemical means. Therefore, the encoded information produced by patterns of the present hydrogels may be transformed through either physical action or by exposure to a chemical stimulus. Due to the nature of the soft materials involved, the codes can be used as wearable materials.
传统的（1D、2D 和 3D）编码被广泛用于提供编码信息的便捷读数。然而，对编码信息的操作和转换通常很难实现。在这里，报告了三种含有四阳离子受体-阴离子识别基序和凝胶特定荧光团的荧光（蓝色、绿色和红色）水凝胶的制备，它们可用作构建通过物理粘附荧光颜色 3D 码（代码 A、代码 B 和代码 C）的构建块，这些代码可以通过智能手机读取。结果，组成代码 B 的个别凝胶成分的部分可以通过切割和粘附方法用其他凝胶构建块替换以形成代码 A。进一步将对氨有响应的荧光团掺入到一种水凝胶中。这使得由代码 C 组成的凝胶块衍生的图案可以通过化学手段转化为代码 A。因此，由本水凝胶的图案产生的编码信息可以通过物理作用或暴露于化学刺激来转换。由于所涉及的软材料的性质，这些代码可用作可穿戴材料。
