Dipicolinate acid (DPA) is an anthrax biomarker. It's serious consequences make it's detection in great need. In this paper, three novel metal-organic frameworks (MOFs) with different coordination modes were synthesized...

The overuse of antibiotics makes its detection very significant for human health. New facile methods and high‐performance sensory materials will be urgently needed for detection of antibiotics. Unfortunately, there are few reports on fluorescence enhancement of antibiotics detection. Herein, based on the modulability of the coordination mode, we proposed two MOFs with different coordination modes based on different metal ions: Zn‐MOF (1) and Cd‐MOF (2). The fluorescence of 1 and 2 can be efficiently and selectively quenched by nitrofuran antibiotics (nitrofurazone, NFZ and furazolidone, FZD) and chloramphenicol (CAP), respectively. Particularly, the matched energy levels between 2 and enrofloxacin (ENR) enables 2 with turn‐on sensing for ENR. Moreover, apart from the sensitivity and selectivity, 1 and 2 also have strong recyclable ability, fast response time and anti‐interference ability, which make them great potential sensory materials to detect antibiotics.

The rational design and exploration of fluorescent probes for the efficient detection of Riboflavin (RF), is of great significance. Herein, a series of isostructural Ln-MOFs (Ln-BPTA) with different metal nodes...

Phenylglyoxylic acid (PGA), as a urine metabolite of ethylbenzene and styrene (EB/S), can effectively represent the level of EB/S ingested by the human body through oral inhalation and skin absorption. Compared with measuring EB/S levels directly in the environment, detecting the level of PGA in urine has the advantages of high specificity and noninvasive sampling. In this paper, a metal-organic framework (MOF)-based sensor Zn-PBA = ({[Zn(PBA)ÁH 2 O]Á 2H 2 O} n , H 2 PBA = 4-(5-pyridinyl)-1,3 benzoic acid) for trace detection of PGA was designed and synthesized by a solvothermal method. Zn-PBA could detect the level of PGA in normal human physiological urine environment (pH range from 5.5 to 7.5) and has the characteristics of high selectivity and sensitivity, rapid response (<210 s), low limit of detection (LOD = 1.96 Â 10 À6 M), and so forth. The irreversible sensing of PGA proves that PGA caused the structural collapse of Zn-PBA. This paper provides a specific sensor for detecting trace PGA level for evaluating the EB/S content intake by the human body.

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