The HKBU team members (sixth from left) Yang Min, Fok Wan-yiu and Chau Ho-fai share their joy with Dr Sam Hau (left) and Dr Ren Kangning (second from right), the guests and members of the support team


(左六起)楊旻、霍韞堯和周浩輝同學向化學系侯俊傑博士(左)、任康寧博士(右二)、嘉賓及支援同學分享得獎喜悅

The HKBU team produces several short videos, from the filming of a suspect (above) to forensic application (below), despite the fact that they only had two days to brainstorm, compile their findings and present them at the competition


從構思、撰寫演講報告到比賽雖只有兩天,浸大隊的製作非常認真,包括拍攝短片(上圖)模擬兇徒否認曾到案發現場,造出引人入勝的效果,並拍攝實驗室鑑證過程(下圖)

Date: 10 Mar 2016 (Thursday)

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HKBU Chemistry students grab silver in Hong Kong Chemistry Olympiad

浸大生勇奪香港化學奧林匹克比賽亞軍

A team of three Chemistry students of HKBU won the silver medal in the 27th Hong Kong Chemistry Olympiad (for tertiary institutions) on 27 February. This year, the competition revolved around the theme “Chemistry and Justice”. Each of the teams from six local universities had to find the solution to a given chemistry problem within two days and present it within a set time limit in an open seminar. The HKBU team included Year 4 student Yang Min and Year 3 students Fok Wan-yiu and Chau Ho-fai. They were assigned the topic “crime fighting”.

For their assigned topic, the HKBU team showed the use of chemistry in forensic science. They simulated a murder scene with a knife on which the blood was possibly removed by the suspect, a threatening letter and a dusty floor covered with paint powder. The team used knowledge from across disciplines, from Chemistry, Biology to Physics, to collect evidence and solve the crime. They explained that the presence of iron in blood catalysed the fluoresce reaction of chemical luminol. In addition, the team used chemical methods to visualise fingerprints on the threatening letter and to prove that the paint powder at the scene was identical to that found on the suspect’s shoes. The students said that they mainly learnt theories in lessons and the competition enabled them to apply what they had learnt to real life. The team produced a short film to illustrate the forensic applications to make their presentation more interesting.

Dr Sam Hau, the team supervisor and Lecturer of the Department of Chemistry praised the team for their efforts. He was impressed by the creative way they presented their topic and their overall performance in the competition. Dr Hau also expressed his gratitude to the students for forming a support team to provide assistance to the competing team.

To see how the team collects forensic evidence using chemistry, please visit: https://www.youtube.com/watch?v=6vWNCejPBjA&feature=youtu.be

浸大三名化學系同學在2月27日舉行的第27屆香港化學奧林匹克比賽(大專組別)中獲得亞軍。今年比賽主題圍繞「化學與公義」,六間大學派出的參賽隊伍須於兩天內就指定的化學題目設計解決方案,並於限時內演講報告。今年,浸大隊由四年級楊旻同學、三年級霍韞堯同學和周浩輝同學組成,他們獲派的題目是「打擊罪案」。

浸大隊員聯想到將化學知識應用到科學鑑證上。隊員模擬在兇殺案現場找到一把懷疑被兇徒抹去血跡的刀、恐嚇信及有油漆粉末的地板,並集合化學、生物、物理等跨學科知識協助尋找犯罪證據。隊員認為,由於血液含鐵元素,鐵可使化學顯影劑發出螢光,因此可使刀上被抹走的血以螢光重現眼前。他們又以化學方法套取恐嚇信上的指紋,以及印證兇案現場地上的油漆粉末與疑犯鞋底的油漆粉末吻合,以確定犯罪證據。隊員認為日常在課堂學到的主要為理論,是次可將所學應用到生活上,並將科學鑑證過程拍成短片,造出引人入勝的效果。

隊伍的指導老師、化學系講師侯俊傑博士表示,三位同學付出很大努力,並靈活地加入短片進行報告和出色的臨場發揮值得讚揚。侯博士亦感謝其他化學系同學組成支援小隊提供協助。
 
浸大隊拍攝以化學顯影劑協助搜集犯罪證據的短片,可瀏覽﹕https://www.youtube.com/watch?v=6vWNCejPBjA&feature=youtu.be