Biomedical diagnostic research is becoming increasingly important in the modern medical profession. Infectious disease inspection, initial detection, chronic disease treatment, clinical services and well-being hunt down are the various applications of biosensors. Advanced biosensor technology permits the identification of the disease and the examination of the patient’s responses to medication. Sensor technology is crucial for a broad range of low-cost and practicable developed medical appliances. Biosensors offer many possibilities because they are unambiguous, ascendable and capable of synthesizing procedures. Cardiovascular disease(CVD) is now recognized as the leading cause of death. It is estimated that the number of people dying from heart disease and stroke will approach 20 million by 2015. The risk event of unexpected death associated with it can be minimized by recognizing the challenges involved in its beginning, symptoms, and early detection. Therefore, this chapter aims to provide an idea for the diagnosis and therapeutics of CVD. Biosensors, created to be utilized as quick screening instruments to detect disease biomarkers early on and classify the condition, are revolutionizing CVD diagnosis and prognosis. Biosensors have become faster, more accurate, portable, and environmentally friendly diagnostic equipment as a result of advances in interdisciplinary study domains.

The usage of antibiotics and chemotherapeutics agents in aquaculture and their undesired consequencesleads to the search for other alternatives. Plants are rich in active compounds includes alkaloids, flavonoids,terpenoids, phenols and polypeptides which proved to maintain a good health status in fish by acting asgrowth promoters, stress resistance and preventions of infections. Phytomedicine provides a cheaper sourcefor the treatment and greater accuracy than chemotherapeutic agents without causing toxicity. There arediverse medicinal plants in India which are being used extensively in aquaculture for several purposes.Present review focuses only on the immunostimulatory and antioxidant property of some common herbs;turmeric, green tea, ginger and garlic owing to their effectiveness and availability. The studied herbs possesspotent immunostimulant and antioxidant compounds which conferring early activation to the non-specificdefence mechanisms of fish and boosted the immune responses like phagocytic and respiratory burst activity,lysozyme activity, complement proteins, immunoglobulins (Igs), protease, anti-protease and alkalineprotease (ALP) and leucocytes promotion etc. It also inhibits the generation of oxygen anions and scavengesfree radical by increasing the antioxidant enzymes activity like catalase (CAT), glutathione (GSH), glutathioneperoxidase (GPx) and superoxide dismutase (SOD) during emergence of physiological disturbances. Theseherbs will promote the eco-friend health management of highly commercial fish species withoutcompromising the aquatic environment and ensure sustainable aquaculture with higher yield and nutrientcontent.