Trauma often causes great damage to the human body's skin and soft tissues, and results in severe fractures. Though the regeneration of wound tissue and the sensing of wound secretions have been studied extensively, wound therapy remains challenging. Herein, an intelligent artificial spider silk protein (spidroin) composite programmable woven textile (i-SPT) with high tensile properties is developed, which possesses biochemical sensing abilities and air permeability as well as motion monitoring capabilities for wound management. The patterned microfluidic channels on i-SPT allow liquids to flow spontaneously through the channels, and the pH-responsive photonic crystals (PC) enables the i-SPT for sensitive hydrogen ion concentration sensing in wound area, meanwhile, the highly integrated microelectronic circuit on i-SPT endowed high sensitivity for motion monitoring. The capability of i-SPT in promoting wound healing has been illustrated by the treatment of the full skin wounds of diabetic mouse models. Thus, i-SPT provides a novel and effective solution for wound management.
A silk wearable patch with electronic and microfluidics systems was fabricated by 3D printing methods. The self-healing and flexible patch was used as a sensitive biochemical and physiological wearable sensor.
In recent years, with the rapid development of China's economy and the trend of economic globalization, China's financial market development momentum is good. Commercial banks and other financial institutions, the rapid growth of credit scale, the development of the national economy has played a catalytic role. But the credit changes will aff ect the investment changes, which led to increased money supply, but also increase the credit risk, commercial bank credit expansion caused by a series of problems also exposed: exacerbate infl ation, resulting in overcapacity, causing economic structural imbalance, accumulate the risk of the fi nancial system, and increase the bank's bad assets. The scale of credit has become a hot topic of concern at home and abroad, research and grasp the rational growth of commercial bank credit to achieve the best size of the problem is urgent. This paper analyzes the reasons for the increasing credit scale of commercial banks, analyzes the harm of excessive expansion of credit scale, explains the necessity of rational expansion of credit scale, and puts forward some suggestions on the credit development of commercial banks in the future.
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