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Highly Luminescent MOF and Its In Situ Fabricated Sustainable Corn Starch Gel Composite as a Fluoro-Switchable Reversible Sensor Triggered by Antibiotics and Oxo-Anions
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-10-23 , DOI: 10.1021/acsami.2c13571 Dashrathbhai B Kanzariya 1 , Ranadip Goswami 2, 3, 4 , Devaraj Muthukumar 5 , Renjith S Pillai 5 , Tapan K Pal 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-10-23 , DOI: 10.1021/acsami.2c13571 Dashrathbhai B Kanzariya 1 , Ranadip Goswami 2, 3, 4 , Devaraj Muthukumar 5 , Renjith S Pillai 5 , Tapan K Pal 1
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Frequent use of antibiotics and the growth of industry lead to the pollution of several natural resources which is one of the major consequences for fatality to human health. Exploration of smart sensing materials is highly anticipated for ultrasensitive detection of those hazardous organics. The robust porous hydrogen bonded network encompassing a free-NH2 moiety, Zn(II)-based metal–organic framework (MOF) (1), is used for the selective detection of antibiotics and toxic oxo-anions at the ppb level. The framework is able to detect the electronically dissimilar antibiotic sulfadiazine and nitrofurazone via fluorescence “turn-on” and “turn-off” processes, respectively. The antibiotic-triggered reversible fluoro-switching phenomena (fluorescence “on–off–on”) are also observed by using the fluorimetric method. An extensive theoretical investigation was performed to establish the fluoro-switching response of 1, triggered by a class of antibiotics and also the sensing of oxo-anions. This investigation reveals that the interchange of the HOMO–LUMO energy levels of fluorophore and analytes is responsible for such a fluoro-switchable sensing activity. Sensor 1 showed the versatile detection ability which is reflected by the detection of a carcinogenic nitro-group-containing drug “roxarsone”. In view of the sustainable environment along with quick-responsive merit of 1, an in situ MOF gel composite (1@CS; CS = corn starch) is prepared using 1 and CS due to its useful potential features such as biocompatibility, toxicologically innocuous, good flexibility, and low commercial price. The MOF composite exhibited visual detection of the above analytes as well as antibiotic-triggered reversible fluoro-switchable colorimetric “on–off–on” response. Therefore, 1@CS represents a promising smart sensing material for monitoring of the antibiotics and oxo-anions, particularly appropriate for the real-field analysis of carcinogenic drug molecule “roxarsone” in food specimens.
中文翻译：
高发光 MOF 及其原位制造的可持续玉米淀粉凝胶复合材料作为抗生素和氧代阴离子触发的氟可切换可逆传感器
抗生素的频繁使用和工业的发展导致了几种自然资源的污染，这是对人类健康造成死亡的主要后果之一。对于那些有害有机物的超灵敏检测，人们高度期待智能传感材料的探索。包含游离 NH 2部分、Zn(II) 基金属有机骨架 (MOF)的坚固多孔氢键网络( 1)，用于选择性检测 ppb 级的抗生素和有毒的含氧阴离子。该框架能够分别通过荧光“开启”和“关闭”过程检测电子不同的抗生素磺胺嘧啶和呋喃西林。通过使用荧光法也观察到抗生素触发的可逆荧光转换现象（荧光“开-关-开”）。进行了广泛的理论研究以建立1的氟转换响应，由一类抗生素以及氧代阴离子的感应触发。这项研究表明，荧光团和分析物的 HOMO-LUMO 能级的互换是造成这种荧光可切换传感活动的原因。传感器1显示了多用途的检测能力，这体现在对含硝基致癌药物“洛克沙胂”的检测上。鉴于可持续环境以及 1 的快速响应优点，使用 1和CS 制备了原位 MOF 凝胶复合材料（1 @CS；CS = 玉米淀粉），因为它具有生物相容性、毒理学无害、灵活性好，商业价格低。MOF 复合材料表现出对上述分析物的视觉检测以及抗生素触发的可逆氟可切换比色“开-关-开”响应。因此，1@CS 代表了一种很有前途的智能传感材料，用于监测抗生素和氧代阴离子，特别适用于食品样本中致癌药物分子“洛克沙胂”的现场分析。
更新日期：2022-10-23
中文翻译：
高发光 MOF 及其原位制造的可持续玉米淀粉凝胶复合材料作为抗生素和氧代阴离子触发的氟可切换可逆传感器
抗生素的频繁使用和工业的发展导致了几种自然资源的污染，这是对人类健康造成死亡的主要后果之一。对于那些有害有机物的超灵敏检测，人们高度期待智能传感材料的探索。包含游离 NH 2部分、Zn(II) 基金属有机骨架 (MOF)的坚固多孔氢键网络( 1)，用于选择性检测 ppb 级的抗生素和有毒的含氧阴离子。该框架能够分别通过荧光“开启”和“关闭”过程检测电子不同的抗生素磺胺嘧啶和呋喃西林。通过使用荧光法也观察到抗生素触发的可逆荧光转换现象（荧光“开-关-开”）。进行了广泛的理论研究以建立1的氟转换响应，由一类抗生素以及氧代阴离子的感应触发。这项研究表明，荧光团和分析物的 HOMO-LUMO 能级的互换是造成这种荧光可切换传感活动的原因。传感器1显示了多用途的检测能力，这体现在对含硝基致癌药物“洛克沙胂”的检测上。鉴于可持续环境以及 1 的快速响应优点，使用 1和CS 制备了原位 MOF 凝胶复合材料（1 @CS；CS = 玉米淀粉），因为它具有生物相容性、毒理学无害、灵活性好，商业价格低。MOF 复合材料表现出对上述分析物的视觉检测以及抗生素触发的可逆氟可切换比色“开-关-开”响应。因此，1@CS 代表了一种很有前途的智能传感材料，用于监测抗生素和氧代阴离子，特别适用于食品样本中致癌药物分子“洛克沙胂”的现场分析。
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