Novel materials have been developed because of technological advancements combined with material research. Metal-organic frameworks (MOF) technology has been investigated for biomedical applications in this line. Nonetheless, as our team has learned from current literature, selecting metal ions/organic linkers, synthesis techniques, water stability/solubility, toxicity, and the possibility of biomolecules/drugs (enzyme, protein, DNA/RNA, and antibodies, among others) tagging/conjugation are the major challenges/factors. These issues/factors have an impact on MOFs’ performance in biomedical applications, and they also raise a lot of doubts about its real-time biological utility in the near future. We targeted a comprehensive review on the MOFs for biomedical applications to keep these considerations in mind. The evolution of MOF technology is based on their interesting features such as biological or pharmacological activity, biocompatibility, limited toxicity, and particular host–guest interactions, as well as environmental friendliness. In this paper, we have summarized the state-of-the-art progress pertaining to MOFs’ biomedical applications such as biosensing, biomedical, and drug delivery applications in this field that is still very new.

In the last decades, development of hybrid materials, especially inorganic–organic materials, coordination polymers, conducting polymers, carbon materials, and many more, has produced breakthroughs in diverse applications. Various advance materials have been reported in the literature using metal organic frameworks (MOFs), which compensate for the limitations of sensors. Diverse combinations of HMs not only offer excellent features, but also give a ray of hope for unprecedented advances in materials in different research areas, such as sensing, energy storage, catalysis, non-linear optics, drug-delivery systems, gas storage, etc. Chemiresistor sensors are a core enabling sensor technology and have led to much progress in the field of material science. Here, we have reviewed the recent progress in chemiresistive sensors based on HMs for nitroaromatic compounds, which could be beneficial for researchers that explore this field further. We have put emphasis on sensing mechanisms and the performance of diverse HMs for nitroaromatic sensing applications including pesticides, pollutants, explosives, polycyclic aromatic hydrocarbons (PAHs) and persistent organic pollutants (POPs). In the end, we explored opportunities, challenges, and future perspectives in this emerging field.

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Here, we have synthesised three luminescent Al MOFs i.e., Al-NTP, Al-FDA, and Al-TDA, using common metal ions (AlCl3·6H2O) with different carboxylic acid organic linkers (5-nitroisophthalic acid, 2,5-furan dicarboxylic acid, and 2,5-thiophenedicarboxylic acid) in a semi-aqueous medium.