Through powerful solvothermal and facile ultrasonic synthetic strategies, two unique cluster-based lanthanide Lu and Y nanoporous metal organic frameworks (MOFs) have been successfully prepared, namely, {[Lu 2 (L) ,5-tricarboxylic acid). In addition, both the morphologies and nanosizes of Lu-MOF and Y-MOF materials also have been deliberately tuned by adjustable ultrasonic conditions including irradiation time (40, 60, and 80 min) and power (70 w, 100 w). Currently, it is noted that the abuse of antibiotics such as ornidazole and ronidazole leads to great damage to human health, and therefore the development of highly effective and facile detection methods for ornidazole and ronidazole is quite important. Herein, to improve the fluorescent sensing sensitivity of antibiotics, Eu 3+ and Tb 3+ have been introduced into Lu-MOF (under a solvothermal preparation method) to fabricate a dual-emission hybrid material Eu 3+ /Tb 3+ @Lu-MOF through a postsynthesis strategy, which can be successfully applied as a self-calibrated ratiometric fluorescent sensor for ornidazole and ronidazole with high selectivity and sensitivity (the K sv value for ornidazole is 1.0854 × 10 6 [M −1 ], and the K sv value for ronidazole is 1.0595 × 10 7 [M −1 ]) and low detection limit values (2.85 nM for ornidazole and 26.7 nM for ronidazole). On the other hand, amoeba liver abscess (ALA) will easily lead to irregular fever, night sweats, and other tortured symptoms; C-reactive protein autoantibody (CRP Ab) is the important biomarker for the detection of ALA. Given this, Y-MOF (under the solvothermal preparation method) also has been successfully designed to combine FAM-labeled NH-ssDNA to construct the scarcely reported excellent hybrid FAM-labeled NH-ssDNA/Y-MOF sensing platform for the highly effective discrimination of CRP Ab with excellent sensitivity and selectivity in real samples such as human serum solution.

Chiral drugs are of great significance in drug development and life science because one pair of enantiomers has a different combination mode with target biological active sites, leading to a vast difference in physical activity. Metal–organic framework (MOF)-based chiral hybrid materials with specific chiral sites have excellent applications in the highly effective sensing of drug enantiomers. Sitagliptin and clonidine are effective curing drugs for controlling diabetes and hypertension, while insulin and norepinephrine are the biomarkers of these two diseases. Excessive use of sitagliptin and clonidine can cause side effects such as stomach pain, nausea, and headaches. Herein, through post-synthetic strategy, MOF-based chiral hybrid material Eu-BTB@ d -carnitine (H3BTB = 1,3,5-benzenetrisbenzoic acid) was synthesized. Eu-BTB@ d -carnitine has dual emission peaks at 417 and 616 nm when excited at 330 nm. Eu-BTB@ d -carnitine can be applied in luminescent recognition toward sitagliptin and clonidine with high sensitivity and low detection limit (for sitagliptin detection, K sv is 7.43 × 106 [M–1]; for clonidine detection, K sv is 9.09 × 106 [M–1]; limit of detection (LOD) for sitagliptin is 10.21 nM, and LOD of clonidine is 8.34 nM). In addition, Eu-BTB@ d -carnitine can further realize highly sensitive detection of insulin in human fluids with a high K sv (2.08 × 106 [M–1]) and a low LOD (15.48 nM). On the other hand, norepinephrine also can be successfully discriminated by the hybrid luminescent platform of Eu-BTB@ d -carnitine and clonidine with a high K sv value of 4.79 × 106 [M–1] and a low LOD of 8.37 nM. As a result, the chiral hybrid material Eu-BTB@ d -carnitine can be successfully applied in the highly effective ratiometric sensing of curing drugs and biomarkers for diabetes and hypertension.

As a dangerous cardiovascular disease, acute myocardial infarction (AMI) has taken the lives of countless patients. Symptom onset of AMI is accompanied by a high amount of AMI biomarkers, including creatine kinase isoenzyme (CK-MB), troponin I (CTn I), and myoglobin (Mb). On the other hand, aspirin is an effective curing drug for AMI. Herein, we applied the layer-by-layer (LBL) synthesis strategy to form stratified magnetic core/multishell lanthanide metal−organic framework (Ln-MOF) Fe 2 O 3 @SiO 2 @Eu-MOF@Tb-MOF (MagMOF) nanoballs. Further, target mRNA sequence and antibodies (NH 2 -mRNA, anti-CTn, and anti-Mb) for AMI biomarkers are combined with MagMOF, respectively. They can be utilized as a hybrid sensing platform for the detection of CK-MB, Mb, and CTn I with high sensitivity (the limit of detection (LOD) for CK-MB is 174.98 U L −1 , for CTn I is 0.16 mg L −1 , and for Mb is 0.94 mg L −1 ). The detection ranges of MagMOF toward CK-MB, Mb, and CTn I in human serum have covered their maximum normal range in the human body, respectively. Further, MagMOF was applied in the ratiometric detection of aspirin with high sensitivity and low limit detection (LOD = 0.43 μM). As a result, MagMOF is the first example of realizing stable, susceptible, fast, and convenient detection of these AMI biomarkers and curing drug aspirin.

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