A small square of paper, screen-printed with carbon electrodes, could be used to test water for toxic compounds in the developing world. It's being developed at the UK's University of Bath. Amy Pollock reports.
01:00
01:03
00:58
00:39
02:14
00:36
01:54
01:15
01:39
00:58
01:42
03:01
00:52
01:13
00:58
01:55
01:16
01:07
00:22
01:32
00:36
01:32
01:33
01:24
01:18
00:56
01:06
01:13
01:38
02:53
01:59
01:10
00:57
00:56
01:57
00:52
01:17
01:35
01:08
01:25
01:00
01:03
00:58
00:39
01:59
01:39
00:58
01:07
00:46
00:22
01:21
00:46
01:27
00:53
01:00
00:40
01:05
01:09
00:59
01:33
01:52
01:11
01:29
01:13
01:15
01:16
02:02
01:30
05:25
01:22
01:25
00:59
01:37
00:55
01:11
01:02
02:00
05:10
01:01
01:05
02:14
01:00
01:01
01:10
01:42
01:08
01:00
01:31
01:37
01:34
01:27
00:23
01:21
00:52
02:00
01:05
01:44
01:29
01:14
02:26
01:15
01:18
03:11
01:44
01:34
01:15
01:20
01:20
03:01
00:51
00:50
01:26
01:18
02:49
00:59
02:19
02:19
01:59
00:49
00:38