An ultrastable zinc-based organic framework as a recyclable luminescent probe for methylmalonic acid detection

Abstract

Methylmalonic acid (MMA) as a functional marker of Vitamin B12 deficiency has aroused extensive attention. However, highly selective and sensitive detection for MMA in complex body fluid environment remains...

Multifunctional lanthanide MOFs with active sites as new platforms for smart sensing of methylmalonic acid and anti-counterfeiting applications

“…According to reports, healthy individuals typically maintain an MMA level in their urine that ranges from 3 to 11 μM. 42 Consequently, the sensor could be utilized to identify MMA. The response time is an essential parameter of the sensor.…”

Ultrasensitive Eu-Based MOF Luminescence Sensor for Clenbuterol Visible Recognition

“…Within the CLB concentration range from 0 to 10 −6 M, the luminescence quenching efficiency (I 0 /I) of compound 1 showed a good linear relationship with [CLB] (Figure 4b). The Stern−Volmer equation can be fitted as 50 According to the 3σ rule, LOD = 3σ/K, σ = 100 × S/I 0 (K is the slope of the calibration curve; S is the standard deviation of I 0 /I), 51,52 the detection limit of compound 1 for CLB is further estimated to be 22.7 nM, which is lower than that of UiO-66-derived materials reported by Li's group. 37 Meanwhile, the sensitivity of compound 1 has displayed a great advantage over other reported electrochemical analysis methods, but there is still a certain gap compared with HPLC (Table S3).…”

Eu3+/Tb3+-modified Cd(ii) coordination polymers for effective detection of uric acid and lung cancer biomarker N-acetylneuraminic acid

“…Generally, luminescence quenching was induced due to the following reasons: structural collapse, electron/energy transfer, and weak interactions. [47][48][49][50] To understand the mechanism of luminescence quenching induced by UA, a series of experiments were conducted on Cd-CP2. First, the PXRD patterns of Cd-CP2 after sensing UA remain consistent with those of the as-synthesized ones (Fig.…”