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Molecularly imprinted polymers (MIPs) are synthetic receptors that mimic the specificity of biological antibody–antigen interactions. By using a "lock and key" process, MIPs selectively bind to target molecules that were used as templates during polymerization. While MIPs are typically prepared using conventional monomers, such as methacrylic acid and acrylamide, contemporary advancements have pivoted towards the functional potential of dopamine as a novel monomer. The overreaching goal of the proposed review is to fully unlock the potential of molecularly imprinted polydopamine (MIPda) within the realm of cutting-edge sensing applications. This review embarks by shedding light on the intricate tapestry of materials harnessed in the meticulous crafting of MIPda, endowing them with tailored properties. Moreover, we will cover the diverse sensing applications of MIPda, including its use in the detection of ions, small molecules, epitopes, proteins, viruses, and bacteria. In addition, the main synthesis methods of MIPda, including self-polymerization and electropolymerization, will be thoroughly examined. Finally, we will examine the challenges and drawbacks associated with this research field, as well as the prospects for future developments. In its entirety, this review stands as a resolute guiding compass, illuminating the path for researchers and connoisseurs alike. [ABSTRACT FROM AUTHOR]

The traditional analytical methods used for biomedical analysis are expensive and not easy to handle and require sophisticated instruments, thus their application is limited in resource-limited settings. Due to their portability, low cost, and ability to be applied to different analytical techniques, paper-based analytical devices are becoming valuable tools for biomedical analysis. The integration of smartphones into analytical devices has provided the ability to build portable, cost-effective, straightforward analytical devices for biomedical analysis and mobile health. The key aim of this review is to emphasize the recent applications of PADs combined with a smartphone for the optical analysis of biomedical species. We started this review by highlighting the type of papers and their modifications with different materials to prepare the PADs. After that, this review presents various detection methods including colorimetry, fluorescence, and luminescence where the smartphone is used for read-out. In the end, we provided the recent applications of the analysis of different biomedical compounds such as cancer and cardiovascular biomarkers, metal ions, glucose, viruses, etc. We believe that the present review will attract a wide scientific community in the areas of analytical chemistry, sensors, and clinical testing. [Display omitted] • Paper-based analytical devices are becoming valuable tools for biomedical analysis. • Smartphone paired with PAD provides rapid and low-cost biomedical analysis. • This review presents the recent uses of PADs-smartphone for biomedical applications. [ABSTRACT FROM AUTHOR]

In this work, a competitive assay based on molecularly imprinted polymer (MIP) is developed for the rapid screening of acetazolamide (ACZ) using a colorimetric method coupled with smartphone-based detection. Because of it is an analog of ACZ and its ability to be transformed into a colored product, sulfamethoxazole (SMX) was used as a competitor to indirectly determine ACZ from the inhibition degree of SMX onto the MIP. It was found firstly that ACZ-SMX competition was not possible without using support. We proceed after that to competition on MIP that is a propitious platform for adsorbing selectively both molecules since it possesses specific active sites. Indeed, two different MIPs were synthesized, namely SMX-imprinted polymer (MIP SMX) and ACZ-imprinted polymer (MIP ACZ), and the results showed that MIP SMX is better for ACZ-SMX competition. Both MIPs were characterized with Fourier transform infrared spectroscopy. The smartphone was employed for taking images and analyzing color intensities by (RGB) color application. Our proposed detection method of ACZ reached 0.03 and 0.1 µM as limits of detection and quantification, respectively. The developed assay was successfully applied for the determination of ACZ in pharmaceutical drug and mineral water samples showing satisfactory recoveries. The proposed proof-of-concept based on the rapid screening of ACZ by competition method and smartphone was demonstrated successfully and thus can open new avenues for other applications. [Display omitted] • Acetazolamide (ACZ) Inhibition was brought off by Sulfamethoxazole (SMX). • ACZ-SMX competition was conducted on Molecularly Imprinted Polymer for ACZ detection. • ACZ-SMX competition count on a reasonable ACZ and SMX adsorption time. • Smartphone based system was employed for indirect ACZ detection. [ABSTRACT FROM AUTHOR]

Detection of relevant contaminants using screening approaches is a key issue to ensure food safety and respect for the regulatory limits established. Electrochemical sensors present several advantages such as rapidity; ease of use; possibility of on-site analysis and low cost. The lack of selectivity for electrochemical sensors working in complex samples as food may be overcome by coupling them with molecularly imprinted polymers (MIPs). MIPs are synthetic materials that mimic biological receptors and are produced by the polymerization of functional monomers in presence of a target analyte. This paper critically reviews and discusses the recent progress in MIP-based electrochemical sensors for food safety. A brief introduction on MIPs and electrochemical sensors is given; followed by a discussion of the recent achievements for various MIPs-based electrochemical sensors for food contaminants analysis. Both electropolymerization and chemical synthesis of MIP-based electrochemical sensing are discussed as well as the relevant applications of MIPs used in sample preparation and then coupled to electrochemical analysis. Future perspectives and challenges have been eventually given. [ABSTRACT FROM AUTHOR]

Cancer and cardiovascular diseases have become one of the leading causes of death worldwide. Therefore, early detection of these diseases and rapid intervention by medical staff remain a great challenge for clinicians and healthcare providers worldwide. Cancer and cardiovascular disease biomarkers are promising tools for early diagnosis before it becomes incurable at an advanced stage. They also contribute to monitoring the progress of therapy and surgical treatment. Indeed, sensors have shown great importance for detecting cancer and cardiovascular biomarkers. Sensors usually require a recognition element for the selective detection of targets. Molecularly imprinted polymer (MIP), as an artificial antibody, has been proposed as an alternative recognition element in sensing fields to overcome the main drawbacks of natural antibodies. With the high need for sensors providing results quicklyand making the early diagnosis of these diseases easier, MIP-based sensors are attracting considerable interest recently, which will undoubtedly be increased in the future due to the sustainability trend. The key aim of this review is to emphasize the recent applications of sensors based on MIP for the detection of cancer and cardiovascular biomarkers and to highlight the key advances related to MIP-based sensors. Furthermore, several key future trends about the applications of MIP-based sensors for detecting cardiovascular and cancer biomarkers are presented., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)