Smart bandage

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How can doctors make sure a dressed wound is healing without taking off the bandage?This is a difficult problem,because removing a bandage can damage the healing process.Technology presented in a new study could help.

This new smart bandage contains a sensor that can sensitively measure wound moisture levels and then transmit the data to a nearby smartphone,without requiring doctors to remove the bandage.By changing the geometry and materials in the bandage,users may be able to adjust it to suit different types of wounds.The technology could help doctors to monitor wounds more easily and successfully.

Chronic wounds can be a source of significant suffering and disability for patients who experience them.Getting such wounds to heal is tricky and there are many factors that can affect wound healing.However,one of the most important is moisture levels.If the wound is too dry,the tissue can become dry;if the wound is too wet,it can become white and wrinkly.However,if a doctor wants to check the moisture levels of a wound,then he or she needs to remove the bandage,potentially damaging the delicate healing tissue.These issues have inspired this latest smart bandage.

The choice of materials was a challenge,so researchers applied a special material onto a gauze（纱布）using a technique called screen printing,and then connected the gauze with commercially available bandage materials.The idea is that changes in the moisture levels of the wound cause a change in an electronic signal measured by the sensor.

To test their bandages,the researchers exposed them to artificial wound liquid,and also tested different bandage materials and shapes.They found that the bandage was highly sensitive,providing different readings in different conditions,suggesting it could be a valuable tool in wound management.

“We developed a range of bandages with various layers and different absorption properties and characteristics,” said Dr Luca Possanzini,one of the researchers. “The idea is that each type of wound could have its own appropriate dressing.However,we will need to further perfect the sensor geometry and determine the appropriate sensor values for the best healing before we can apply our technology to various types of wounds.”

Reading Check

1.What does paragraph 2 mainly talk about the smart bandage?

A.Its popularity.

B.Its wide application.

C.Its working mechanism.

D.Its complex structure.

2.What's the key factor that influences wound healing?

A.The applied medicine.

B.The function of the tissue.

C.The degree of suffering.

D.The wound's moisture levels.

3.How can we describe the smart bandage?

A.Green. B.Firm.

C.Convenient. D.Flexible.

4.What can we infer from what Dr Luca Possanzini said in the last paragraph?

A.There is a variety of bandages available.

B.The smart bandage still needs improving.

C.Bandages contribute to the healing of wounds.

D.The smart bandage should be used appropriately.

Language Study

Difficult sentences in the text

1.However,if a doctor wants to check the moisture levels of a wound,then he or she needs to remove the bandage,potentially damaging the delicate healing tissue.然而，如果医生想检查伤口的湿度，他们就需要取下绷带，这可能会破坏脆弱的愈合组织。

【点石成金】句中if a doctor wants to check the moisture levels of a wound为if引导的条件状语从句，potentially damaging the delicate healing tissue为结果状语。

2.The idea is that changes in the moisture levels of the wound cause a change in an electronic signal measured by the sensor.其原理是，伤口湿度的变化会引起传感器测量到的电子信号的变化。

【点石成金】句中that引导表语从句，that在从句中不作成分，没有实际含义，但不能省略；measured by the sensor为修饰signal的后置定语。