全國中小學科展

2025年

二氧化鋯量子點在文物修復與減碳科技應用的潛力

本研究成功以水熱法在 110°C 下合成了約3.90 nm 大小的ZrO2量子點(QDs)。此設計的ZrO2 QDs 能隙為5.03 eV(波長λ < 300 nm),在可見光和紫外光範圍內無明顯吸收特徵,呈現高度惰性和穩定性,適合應用於抗紫外線塗層或顏料。而ZrO2 QDs 表面豐富的氧空位與不同溫度下的CO₂轉化率及CO/CH₄產物選擇性相關。氧空位為帶部分正電的酸性活性位,CO2作電子受體為路易士酸。經氧氣環境加熱處理後的ZrO2 QDs 能提高CO2轉化率且在低溫條件下選擇性較高能促進電子轉移生成CH₄(每分子8e⁻ 轉移)。不同金屬簇(如Fe、Ni、Co和Cu)表面修飾後,Fe-ZrO2 QDs 被證明為最佳催化劑,低溫下更有效促進CH₄生成,且優於ZrO2 QDs。這顯示Fe與ZrO2間存在顯著的強金屬-載體相互作用(SMSI),提升Fe捕捉CO₂分子的能力。此特性突顯ZrO2於碳減排技術的潛力,能有效將CO₂轉化為可再利用的碳基燃料或化學原料,為減少溫室氣體提供實用解決方案。

矩形密鋪及其應用

「在格狀平面中用矩形以互不重疊的方式鋪滿(2D rectangle tiling problem)」為一NP-complete問題(Dani`ele Beauquier et al ,1995),目前多項式時間只能求出盡可能覆蓋最大面積的近似解。本研究所創的階梯演算法 stair algorithm 透過改變動態規劃紀錄狀態的方式,使狀態數大幅減少,進而改善求準確解的時間複雜度,也成功證明此演算法的正確性。本研究的演算法可被應用於平行計算中的負載平衡、積體電路設計等方面。隨後,本研究寫了一個互動展示品清楚呈現此演算法的功能。且以階梯演算法成功檢驗並比較 RTILE PROBLEM 的 7/3-approximation algorithm (Krzysztof Lorys and Katarzyna E. Paluch,2000 [4]) 與 11/5-approximation algorithm (Piotr Berman et al,2001[7])進行比較與分析。

Measuring the large nonlinear refractive index of pigment from avocado leaves by a laser pointer

本研究報告,從酪梨葉利用柱層分析技術萃取出葉綠素-a、葉綠素-b以及類胡蘿蔔素,用來研究其物理性質以及測量非線性折射率(n2)。 當雷射光束照射在置於比色管中的樣本時,中央軸上的強度最高,導致溶液產生了溫度梯度和折射率梯度。雷射光束穿過溶液後,在屏幕上產生了遠場繞射圖樣。這些繞射圖樣的最大半徑(Rm)和暗條紋的數目(N)隨雷射光的功率(P)、光徑長度 (𝓵)、溶液的熱吸收係數(μ)和溶劑的熱光係數(dn/dT)變化。從N對𝓵和N對P的關係圖中,可以計算出溶液的n2。 在本研究中,從酪梨葉中萃取的色素濃度分別是從菠菜和朱槿葉中萃取色素濃度的4.0倍和3.1倍。更令人驚訝的是測得的n₂ 值比石墨烯大100倍。結果顯示,該樣品具有顯著的非線性折射率,使其成為各種光學開關應用的理想材料。

Flavored Nanofiber Strips Loaded with Amoxicillin as an Alternative Method for Treating Bacterial Infections in Children

Semisynthetic penicillin, Amoxicillin, is a broad-spectrum antibiotic that is widely used to treat bacterial infections in children suffering ear, nose, and throat infections, genitourinary tract infections, skin infections, and lower respiratory tract infections1. This antibiotic works against both gram-positive and gram-negative bacteria, such as Listeria monocytogenes, Haemophilus influenza, Streptococcus pneumonia , Streptococcus pyogene and Escherichia coli1,2. It shows antibacterial activity by inhibiting dd-transpeptidase, which maintains the integrity of the bacterial cell wall which results in bacterial cell death due to a fragile cell wall3. Nonadherence to medication was associated with 50% of drug-related hospitalizations in children4. In order to improve adherence and influence clinical outcome, it is important to acknowledge the importance of drug palatability to children4–6. The currently available liquid suspension form of this antibiotic is administered to patients through oral/GI routes. It is also available in capsules or tablets for adults7–9. In the gastrointestinal tract, the drug has to withstand variable pH conditions and enzymatic degradation , mucus and mucosal barriers to survive resulting in limiting drug bioavailability10,11. In addition to conventional drug delivery formulations, nanofibers can be used to deliver drugs orally, topically, and through buccal or transdermal routes12. Drug-loaded nanofibers offer many advantages as a delivery system, including their porous structure and their efficient delivery of various drugs and bioactive molecules including hydrophobic and hydrophilic drugs12–14. Considering that amoxicillin palatability can affect children patients’ compliance and due to the advantages of both nanofiber drug delivery system and drug delivery through buccal routes, hence, this project aims to prepare flavored electrospun nanofibers loaded with amoxicillin to mask the unpleasant taste of the drug for treating children with bacterial infection. Nanofibers loaded with amoxicillin can be applied between the child's gum and cheek, allowing the fibers to dissolve in mucus and penetrate directly into the bloodstream.

「梅」來演趣—探討台灣梅雨季之大氣流型演變與模擬

為了解台灣梅雨季的氣候特徵,本研究分析了2009至2024年間五、六月的降雨、風場流型及大氣環境。結果顯示,東北部冬季多雨,而西部地區則自五月梅雨季開始進入雨季,台灣的降雨區域逐漸南移,顯示大氣環境在此期間發生變化。我們分析了16年間的風場情形,歸納出7種單一風向流型及2種過渡流型,並整合其趨勢。我們發現,梅雨季期間,寒冷流型的出現頻率逐漸減少,而溫暖流型在夏季成為主流,不同流型之間的轉變具趨勢性。整合降雨資料後,結果顯示盛行風、低壓帶、地形效應與過渡流型對降雨有顯著影響,且發現致災性梅雨的發生條件。最後,本研究設計模擬裝置,利用不同密度的海藻酸鈉溶液與台灣模型,可模擬出符合本研究歸納的流型。

Intellectual security system for industrial enterprises (ISS)

The economy around the world is changing rapidly, with new ways of industrial production being introduced all the time. This is due to the Fourth Industrial Revolution. The main objectives of Industry 4.0 [5] are digitalization and full automation of production processes, which increase productivity and worker safety.

Production of Nano-Composite Artificial Bone Tissue Using Bioceramic Synthesis from Bio-Waste

Certain specially structured ceramics, which can be used as biomaterials to replace bone, have recently started being utilized in the medical field. The aim of this study is to produce high-bioactivity silica from corn cob waste, a widely available organic material in nature, and combine it with calcium oxide (CaO) obtained by grinding organic mussel shell waste with high bioactivity. This combination is intended to synthesize dicalcium silicate (2CaO.SiO₂) to develop an alternative tissue scaffold with high bioactivity, capable of replacing bone, for existing titanium alloys. The goal is to incorporate this scaffold into PEEK (polyether ether ketone), a novel tissue scaffold material, at varying percentages to create a next-generation innovative bone substitute material. An additional objective is to demonstrate through biocompatibility tests that the produced ceramic-polymer biocomposite exhibits antibacterial activity against Staphylococcus aureus.

探討藉由隧道奈米管(TNTs)傳遞Chromogranin-A對神經母細胞瘤細胞的影響及其相關機制

Previous research observed increased TNTs formation between hypoxic and normoxic neuroblastoma cells, aiding hypoxic cell survival. CHGA was identified as a potential factor in this process. This study compared CHGA expression and whether CHGA exists in TNTs in five cell lines, with SH-SY5Y showing the highest levels, followed by SK-N-BE(2)C, while the other three showed lower expression. Future studies will focus on the impact of CHGA on cell survival and its mechanisms.

短期睡眠剝奪對小鼠免疫系統的影響

現代社會中,睡眠剝奪已成為普遍問題,人們對其對免疫系統及整體健康的負面影響愈加關注。本研究使用特製的旋轉鼠籠讓小鼠連續72小時保持清醒,探討急性睡眠剝奪對小鼠免疫反應的影響。研究發現NK細胞與脾臟中的記憶CD8 T細胞比例明顯減少,顯示細胞毒性功能受損或記憶免疫反應下降。與此同時,抗炎細胞因子的表達增加,而促炎細胞因子和相關基因的表達則有顯著下調。此外,雖然觀察到B細胞比例有所增加,這可能是免疫系統在細胞免疫功能受損時,維持免疫穩態的反應。這些發現揭示了睡眠剝奪可能抑制免疫系統造成損害。本研究強調適量睡眠對維持免疫平衡的重要性,並指出睡眠不足可能促進慢性免疫問題的發展。在此基礎上,後續研究可探討短期睡眠剝奪與腫瘤及免疫系統的關聯,並延伸至長期剝奪的影響。

建構標準舞蹈姿勢評分系統

在現今社會,個人越來越依賴自主學習以提升技能和知識,而舞蹈學習尤其受到關注。然而,在沒有專業指導的情況下,學員往往難以掌握舞蹈動作的細節,也難以清楚地評估自己的表現與標準示範之間的差距。 為了應對這一挑戰,本研究利用人體姿態識別演算法OpenPose,捕捉舞蹈者的關節點。通過這項技術,針對舞蹈的標準動作、力度、流暢度等方面,成功地開發出一款自動評分系統。 通過人體姿態識別技術,我們能夠深入分析舞蹈動作的細節,讓學員與標準舞蹈動作進行比較,以確認學習上的差異。我們希望通過這項研究,學員能在沒有專業指導的情況下,利用網路平台創建更有效且有趣的自主學習環境。