FIGa. 10a to lOd - images of sensors attached to clothing at various locations on the human body; and FIG. lib - charge responses of the sensing textile of FIG. 11a versus varying CO2 concentration; FIG. 12a - image of PEDOT:PSS coated socks (background) and original, uncoated socks (foreground); FIG. 13, comprising FIGs. 13a to 13d, illustrates: FIGs. 13a and 13b - output voltage and current, respectively, of PEDOT:PSS coated socks and non-coated socks; and FIGs. 13c and 13d - power curve of smart socks within shoes and without shoes, respectively, under walking and jumping conditions; FIG. 14, comprising FIGs. 14a to 14c, illustrates: FIG. 14a - gait monitoring using multiple electrodes, for toe and heel contact; FIG. 14b - output voltage versus force calibration for piezoelectric force sensors; and FIG. 14c - output signals from ball and heel of foot during walking, and comparison against theoretical foot pressure mapping; and FIG. 15 shows the open circuit output voltage of a PZT sensor and triboelectric sensor in a sock under increasing sweat conditions. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [026] Proposed herein is a smart textile for diversified wearable applications. Embodiments will generally be described with reference to a PEDOT:PSS coated smart textile for the applications of energy harvesting, physiological and chemical sensing, as well as controlling purposes. The smart textile is fabricated with a facile and low-cost process. The smart textile has triboelectric properties such that it experiences contact electrification. The triboelectric properties of the textile are optimized or improved as described herein, and its energy harvesting properties are investigated. FIG. 12b - image of piezoelectric (PZT) sensor arrays on a polydimethylsiloxane (PDMS) substrate before being embedded into the socks of FIG. 12a; and FIG. 12c - a PZT sensor unit; FIG. 12, comprising FIGs. 12a to 12c, illustrates: FIG. lOe - open circuit voltage readings from the sensors for a variety of activities; FIG. 11, comprising FIGs. 11a and lib, illustrates: FIG. 11a - schematic diagram of a test setup of a polyethylenimine (PEI) coated carbon dioxide (CO2) sensing textile; and