Bunge Meagan A, Neil Ruckart K, Leavesley Silas, Peterson Gregory W, Nguyen Nien, West Kevin N, Grant Glover T
Department of Chemical and Biomolecular Engineering, University of South Alabama 150 Jaguar Dr., SH4136, Mobile, Alabama 36688, United States.
Center for Lung Biology, University of South Alabama, 307 N. University Boulevard, MSB 3340, Mobile, Alabama 36688, United States.
Ind Eng Chem Res. 2015 Apr 22;54(15):3821-3827. doi: 10.1021/acs.iecr.5b00089. Epub 2015 Mar 19.
Reactive dyes conventionally used to chemically bind chromophores to fabrics have been used to develop a platform technology that can modify commercially available fibers with nanoscale structures. To illustrate this concept, commercial nylon and cellulose fibers have been modified with gold nanoparticles of three sizes, metal organic framework (MOF) crystals, and quantum dots in five sizes. The gold modified cellulose and nylon samples have colors that vary based on the size of the gold particles, and the particles remained attached to the fibers, even after being washed with solvents, water, and soap. The MOF was grown on the fibers after applying reactive dyes to anchor the metal building unit to the fibers, and the process produced cellulose fibers with surface areas of ~980 m/g. Both the nylon and cellulose MOF modified fabrics show preferential adsorption of ethylene over ethane and the ability to adsorb ammonia from air. Quantum dot modified nylon and cellulose fibers have fluorescent properties consistent with the unbound particles and remained attached to the fibers after washing with organic solvents, water, and soap. Applications are broad, and this work provides a first step at coupling conventional dyes and nanotechnology.
传统上用于将发色团化学结合到织物上的活性染料已被用于开发一种平台技术，该技术可以用纳米级结构对市售纤维进行改性。为了说明这一概念，已用三种尺寸的金纳米颗粒、金属有机框架（MOF）晶体和五种尺寸的量子点对商业尼龙和纤维素纤维进行了改性。金改性的纤维素和尼龙样品的颜色因金颗粒的大小而异，即使在用溶剂、水和肥皂洗涤后，颗粒仍附着在纤维上。在施加活性染料以将金属构建单元锚定到纤维上之后，MOF在纤维上生长，该过程产生了表面积约为980 m/g的纤维素纤维。尼龙和纤维素MOF改性织物都表现出对乙烯比对乙烷的优先吸附以及从空气中吸附氨的能力。量子点改性的尼龙和纤维素纤维具有与未结合颗粒一致的荧光特性，并且在用有机溶剂、水和肥皂洗涤后仍附着在纤维上。应用广泛，这项工作为将传统染料与纳米技术结合迈出了第一步。
