Salinity-induced ethylene production and reactive oxygen species (ROS) inhibit agricultural productivity. The plant synthesizes ethylene directly from aminocyclopropane-1-carboxylic acid (ACC). By using ACC as a nitrogen source, bacteria with ACC deaminase (ACCD) inhibit the overproduction of ethylene, thereby maintaining the ROS. The present study investigated the ACCD activity of previously identified rhizobacterial strains in Dworkin and Foster (DF) minimal salt media supplemented with 5 mM ACC (as N-source). Bacterial isolates GKP KS2_7 (Pseudomonas aeruginosa) and MBD 133 (Bacillus subtilis) could degrade ACC into α-ketobutyrate, exhibiting ACCD activity producing more than ~257 nmol of α-ketobutyrate mg protein⁻¹ h⁻¹, and were evaluated for other plant growth-promoting (PGP) traits including indole acetic acid production (>63 µg/mL), phosphate solubilization (>86 µg mL⁻¹), siderophore (>20%) ammonia and exopolysaccharide production. Furthermore, Fourier Transform Infrared analysis also demonstrated α-ketobutyrate liberation from ACC deamination in DF minimal salt media, thereby confirming the ACCD activity. These isolates also showed enhanced tolerance to salinity stress of 3% w/v NaCl in vitro, in addition to facilitating multifarious PGP activities. Seed bacterization by these ACCD-producing bacterial isolates (GKP KS2_7 and MBD 133) revealed a significant decline in stress-stimulated ethylene levels and its associated growth inhibition during seedling germination. They also mitigated the negative effects of salt stress and increased the root-shoot length, fresh and dry weight of root and shoot, root-shoot biomass, total sugar, protein, reducing sugar, chlorophyll content, and antioxidants enzymes in Pisum sativum. As a result, these strains (GKP KS2_7 and MBD 133) might be applied as biofertilizers to counteract the negative effects of soil salinity.

Nanotechnology covers a variety of scientific areas including chemistry, material science, physics, biomedicine, biology, and engineering. Metal nanohybrid with extraordinary properties is highly researched in comparison to bulky individual nanoparticles. Especially, metal and metal oxide nanoparticles are a new class of functional nanohybrids having broad, intriguing physio-chemical properties showing applications in nanoscience and biomedical research. Engineered inorganic nanoparticles have paved an essential component in the advancement of nanotechnologies. Synthesis is done through various physical, chemical, and biological methods with their special features and manipulation at the nano level in their physiochemical properties, controlling their shape, size, and surface functionality. Application of metal and metal oxide nanohybrid are discussed, including, gene delivery, theranostics, and catalysis. Due to the versatile application of nanohybrids, it can be used in the detection of tumors, cell tracking, and visualizing the specific region of disease. Development of accurate, multifunctional imaging and ambient data are indispensable for futuristic applications. Nanohybrids (NHs) can load therapeutic drugs in their sector of core and shell and have the ability to release them in a controlled and sequential manner of a delivery system. Novel nanohybrid with their multidimensional, integrated mechanistic property has also shown a great effect on environmental pollution control also. A proteomics and transcriptomics approach for the nanohybrid action of mechanism has been discussed and also includes limitations of MNHs and MONHs. The current manuscript critically reviewed several available recent kinds of literature and has the potential to offer a better understanding of metallic and metallic oxide nanohybrids having a multifunctional role in various biomedical applications.

Numerous research reports have witnessed dramatic advancements in cancer therapeutic approaches through immunotherapy. Blocking immunological checkpoint pathways (mechanisms employed by malignant cells to disguise themselves as normal human body components) has emerged as a viable strategy for developing anticancer immunity. Through the development of effective immune checkpoint inhibitors (ICIs) in multiple carcinomas, advances in cancer immunity have expedited a major breakthrough in cancer therapy. Blocking a variety of ICIs, such as PD-1 (programmed cell death-1), programmed cell death-ligand 1 (PD-L1), and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) has improved the immune system’s efficacy in combating cancer cells. Recent studies also supported the fact that ICIs combined with other potent antitumor candidates, such as angiogenic agents, could be a solid promising chemopreventive therapeutic approach in improving the effectiveness of immune checkpoint inhibitors. Immune checkpoint blockade has aided antiangiogenesis by lowering vascular endothelial growth factor expression and alleviating hypoxia. Our review summarized recent advances and clinical improvements in immune checkpoint blocking tactics, including combinatorial treatment of immunogenic cell death (ICD) inducers with ICIs, which may aid future researchers in creating more effective cancer-fighting strategies.

Apitherapy (using bee products) has gained broad recognition in cancer therapeutics globally. Honeybee venom has a broad range of biological potential, and its utilization is rapidly emerging in apitherapy. Bee products have significant potential to strengthen the immune system and improve human health. Thus, this review is targeted toward recapitulating the chemo-preventive potential of melittin (MEL), which constitutes a substantial portion of honeybee venom. Honeybee venom (apitoxin) is produced in the venom gland of the honeybee abdomen, and adult bees utilize it as a primary colony defense mechanism. Apitoxin comprises numerous biologically active compounds, including peptides, enzymes, amines, amino acids, phospholipids, minerals, carbohydrates, and volatile components. We are mainly focused on exploring the potential of melittin (a peptide component) of bee venom that has shown promising potential in the treatment of several human cancers, including breast, stomach, lung, prostate, ovary, kidney, colon, gastric, esophageal, cervical cancers, melanoma, osteosarcoma, and hepatocellular carcinoma. This review has summarized all potential studies related to the anticancerous efficacy of melittin (apitoxin), its formulations, conjugates, and nano-formulations against several human carcinomas, which would further pave the way for future researchers in developing potent drugs for cancer management.

Sustainable agriculture is crucial for stimulating both developing and developed countries. Agriculture needs modernization and innovation to meet the increasing demands of food for the growing global population and to maintain environmental sustainability simultaneously. Nanotechnology has gained wider attention in food safety improvement and environment protection by augmenting the efficacy of agricultural inputs and giving potent solutions to agricultural issues for improving food security and productivity. Modern agricultural practices have been found to be associated with the degradation of the environment, ecosystems, and land due to agricultural pollution. Our review provides a detailed insight into the recent developments in nanotechnology-based agrochemicals which have transformed the agriculture sector with better plant growth, crop yields, nano-facilitated soil remediation, and identifying environmental contaminants. The incorporation of nanoscale bioagrochemicals such as nano-pesticides, nano-fertilizers, nanoformulations, and nanosensors in agriculture has revolutionized the traditional agro-practices making them more sustainable, ingenious, and environmentally efficient. Furthermore, we also list recently explored nanotechnology-based agrochemicals including nanocomposites that have significantly overcome the crucial issues associated with food packaging and agricultural sustainability. However, further research is still warranted to study their migration in food products and their environmental implications. Altogether, this review will be highly beneficial for future researchers to understand and exploit the potential of nanomaterials for better food security and sustainable agriculture.

Worldwide, since ages and nowadays, traditional medicine is well known, owing to its biodiversity, which immensely contributed to the advancement and development of complementary and alternative medicines. There is a wide range of spices, herbs, and trees known for their medicinal uses. Chilli peppers, a vegetable cum spice crop, are bestowed with natural bioactive compounds, flavonoids, capsaicinoids, phytochemicals, phytonutrients, and pharmacologically active compounds with potential health benefits. Such compounds manifest their functionality over solo-treatment by operating in synergy and consortium. Co-action of these compounds and nutrients make them potentially effective against coagulation, obesity, diabetes, inflammation, dreadful diseases, such as cancer, and microbial diseases, alongside having good anti-oxidants with scavenging ability to free radicals and oxygen. In recent times, capsaicinoids especially capsaicin can ameliorate important viral diseases, such as SARS-CoV-2. In addition, capsaicin provides an ability to chilli peppers to ramify as topical agents in pain-relief and also benefitting man as a potential effective anesthetic agent. Such phytochemicals involved not only make them useful and a much economical substitute to wonder/artificial drugs but can be exploited as obscene drugs for the production of novel stuffs. The responsibility of the TRPV1 receptor in association with capsaicin in mitigating chronic diseases has also been justified in this study. Nonetheless, medicinal studies pertaining to consumption of chilli peppers are limited and demand confirmation of the findings from animal studies. In this artifact, an effort has been made to address in an accessible format the nutritional and biomedical perspectives of chilli pepper, which could precisely upgrade and enrich our pharmaceutical industries towards human well-being.