Method and System for Detecting Drug Resdue in Human Body
Patent Information:
1. Filing Country: China
Application No: 200910221092.5
Filing Date: 05 November 2009
Patent No: ZL200910221092.5
Issue Date: 17 April 2013
2. Filing Country: China
Application No: 201080049909.6
Filing Date: 03 May 2012
Patent No: ZL201080049909.6
Issue Date: 03 December 2014
3. Filing Country: USA
Application No: 13/508043
Filing Date: 04 May 2012
Patent No: 9217733
Issue Date: 22 December 2015
4. Filing Country: Hong Kong
Application No: 12109817.8
Filing Date: 05 October 2012
Patent No: HK1169167
Issue Date: 19 June 2015
5. Filing Country: Macau
Application No: J/1080
Filing Date: 23 May 2013
Patent No: J001080
Issue Date: 26 June 2013
6. Filing Country: Macau
Application No: J/1638
Filing Date: 15 January 2015
Patent No: J001638
Issue Date: 14 April 2015
Inventor 1: Prof. Karl Wah Keung, TSIM
Inventor 2: Dr. Tingxia, DONG
Inventor 3: Dr. Tiejie, WANG
Inventor 4: Mr. Kevin Yue, ZHU
Inventor 5: Dr. Wing Ka Wing, LEUNG

This novel drug testing technique relies on the newly invented microfluidic-chip based nano-HPLC coupled to tandem mass spectrometry (nano-HPLC-Chip-MS/MS) to detect drug residues in hairs. This new technique can simultaneously measure abused drugs and metabolites.
Potential Application   Advantage
In contrast to most of the specimens including urine, blood, sweat and saliva, hair gives a longer detection window (more than 1 year if the hair is longer than 12 cm), which enables retrospective investigation of the past drug consumption.

When compared with other hair-based drug testing method, this new technology requires less sample (only 5 to 10 pieces of hair), yielding faster results with lower cost.

A number of community organizations and schools have already used this new hair-based drug test to facilitate implementation of education and rehabilitation. Social and rehabilitation centers, educational sector and medical clinics are welcome to try this using this new test.
  1) Allow review of drug exposure history
2) Enhanced sensitivity
3) Little chance to false results
4) Smaller hair sample size
5) Shorter testing time
Patent documents are available at [], and can be viewed by inserting patent no., application no. or TTC code <TTC Code> into the corresponding field.
Contact information :
Ms Shirley Woo
(852) 2358 7918
HKUST R and D Corporation Ltd
(852) 2358 7917
Technology Transfer Center
香港九龍清水灣 香港科技大學