This work was partly supported by Nippon Sheet Glass Foundation for Materials Science and Engineering and JSPS KAKENHI (Grant-in-Aid for Challenging Exploratory Research, #50362281).

注意：化学物質やソリューションを扱うときに常に注意してください。適切な安全対策に従ってください、常に手袋、眼鏡、と白衣を着用してください。ナノ材料は、それらのバルクの対応と比較して付加的な危険性を有していてもよいことに注意してください。 リージェンツの調製<ol><li> 0.2 mMのMV 2+を与えるために水20mlに、1,1&#39;-ジメチル-4,4&#39;-ビピリジニウムジクロリド（MV 2+メチルビオロゲン）の0.0012グラムを溶解することによりメチルビオロゲン水溶液を準備します。 </li><li> 25 mMののHAuCl 4を与えるために水10mlで金（III）四三水和物の0.1050グラム（のHAuCl 4•3H 2 O）を溶解することにより、金（III）塩化物水溶液を準備します。 </li><li> 100mMのNaBH 4を与えるために水10ml中のテトラヒドロホウ酸ナトリウムの0.03844グラムを溶解し、水素化ホウ素ナトリウム水溶液（のNaBH 4）を準備します。 </li><li> dissolvによる2-ammoniumethanethiol水溶液を調製100 mMの2-AET +を与えるために、水25mlで2-ammoniumethanethiol塩化物塩（2-AET +）の0.2985グラムをる。 </li></ol> TNSコロイド懸濁液の2.合成注：チタニアナノシート（TNS; 2のTi 0.91 O）は、十分に確立された手順に従って調製以前22,23,30報告されました。 <ol><li> 20時間22、800℃で、のCs 2 CO 3（0.4040グラム）とTiO 2（0.5000グラムST-01）の化学量論混合物を焼成することにより、層状チタン酸セシウムCsの0.7のTi 1.825 O 4の出発材料を準備します。これを2回繰り返します。 </li><li>繰り返し12時間シェーカー（300 Hz）を用いて、塩酸（100mMの、81.42ミリリットル）水溶液とチタン酸セシウムの0.8142グラムを処理することによってプロトン化層状チタン酸（H 0.7のTi 1.825 O 4・H 2 O）を準備します。 </li><li>剥離した層状チタン酸（TNS）によってコロイド懸濁液を準備します暗条件下で、周囲温度で約2週間の水溶液- 17 mMの水酸化テトラブチルアンモニウム（TBA + OH）の25ミリリットルとプロトン化チタン酸粉末（0.0998グラム）を激しく（500 rpm）し、攪拌。得られた乳白色の懸濁液を剥離チタニアナノシート（; 1.4グラム/ L、= 11〜12のpH TNS）が含まれています。 </li></ol> TNSフィルム21の3の合成<ol><li> TNSのキャストフィルム（C-TNS）の調製 <ol><li>予備清浄なガラス基板（〜20×20 mm 2）と30分間、1Mの水性水酸化ナトリウム（NaOH）で超音波洗浄機（27キロヘルツ）を用いて超音波処理を介し。 </li><li>超純水の5-10 mLの（&lt;0.056μSセンチ-1）で基板を洗浄します。 </li><li> 3分間、0.1Mの水性塩酸（HCl）でガラス基板を浸漬し、超純水5〜10mlのですすいでください。 </li><li> 1時間純水中で超音波処理（27 kHzの）を介して基板をきれいにし、その後、純水で洗い流してください。 （乾燥するまで）2-3分間ヘアドライヤーで乾燥しました。 </li><li> 300μlのアリコートでガラス基板上に、TNSのコロイド懸濁液をキャストします。 </li><li> C-TNSフィルムを与えるために、乾燥炉を用いて2時間60℃で乾燥しました。 </li></ol></li><li> 焼結TNSフィルム（S-TNS）の調製 <ol><li>ガラス基板（S-TNSフィルム）上TNS部品の熱定着を達成するために、3時間500℃で焼結空気中で得られたC-TNSフィルムを（6.8°Cの速度で25〜500℃から加熱/分）オーブンを用いて。 </li><li>二度焼結プロセスを繰り返します。 </li></ol></li><li> フィルムの作製 <ol><li> S-TNS膜を溶液に浸漬されている場合、それはすべての実験手順のための上部を向くように、堆積したS-TNSフィルムを配置します。 </li><li> TNSの光反応を回避するために、アルミホイルでセットアップを覆うことによって、暗条件下ですべての実験を行います。 </li></ol></li><li> プレメチルビオロゲン（MV 2+）インターカレーTNSフィルム（TNS / MV 2+）のparation <ol><li>暗条件下で室温（RT）で7時間ペトリ皿でMV 2+二塩化塩の水溶液（0.2 mMの、3ミリリットル）中のs-TNSフィルムを浸し。 </li><li> 〜1時間暗所でオーブンを用いて60℃の空気中での超純水（5〜10 ml）で得られた試​​料をすすぎ、乾燥しました。 </li></ol></li><li> 金の調製（III）インターカレーTNSフィルム（TNS /金（III）） <ol><li>暗条件下で室温で3時間、ペトリ皿中のHAuCl 4の水溶液（25mMの、3ミリリットル）にTNS / MV 2+フィルムを浸し。 </li><li> 〜1時間暗所でオーブンを用いて60℃の空気中での超純水（5〜10 ml）で得られた試​​料をすすぎ、乾燥しました。 </li></ol></li><li> TNSフィルムの層間空間内のAuNPの合成（TNS / AuNP） <ol><li> NaBH 4水溶液にTNS /金（III）膜を浸漬</sub&gt;暗条件下で室温で0.5時間、ペトリ皿中（0.1 M、5ミリリットル）。 </li><li> 〜1時間、暗所で、オーブンを用いて60℃の空気中で得られた膜を乾燥させます。 </li></ol></li><li> 2-AET +インターカレーTNS薄膜の作製（TNS / 2-AET +） <ol><li>室温で24時間、ペトリ皿中（0.1M、3mL）で- 2-AET + Clでの水溶液中のS-TNS膜を浸します。 </li><li>リンスは、約1時間、暗所で、オーブンを用いて60℃の空気中での超純水（5〜10 ml）および乾燥を有するフィルムを得ました。 </li></ol></li><li> 金（III）および2- AET +共インターカレーTNSフィルム（TNS / 2-AET + /金（III））。 <ol><li> RTで3時間のHAuCl 4水溶液（25ミリモル、3 ml）中TNS / 2-AET +膜を浸します。 </li><li> 〜1時間暗所でオーブンを用いて60℃の空気中での超純水（5〜10 ml）で得られたフィルムをすすぎ、乾燥しました。 </li></ol></li><li> AuNP withiの合成nはTNS / 2-AET +フィルムの層間スペース（TNS / 2-AET + / AuNP）。 <ol><li>暗条件下で室温で0.5時間、ペトリ皿中のNaBH 4（0.1 M、5ミリリットル）の水溶液中でTNS / 2-AET + /金（III）膜を浸し。 </li><li> 〜1時間暗所でオーブンを用いて60℃の空気中での超純水（5〜10 ml）で得られたフィルムをすすぎ、乾燥しました。 </li></ol></li><li> キャラクタリゼーション <ol><li> 30キロボルトと15ミリアンペアで操作X線回折（XRD）単色Cu-Kα放射（λ= 0.15405 nm）を備えたデスクトップX線回折装置を使用して21を解析し、実行します。 </li><li>エネルギー分散型X線分光法（EDS）スペクトル21を取ります。 </li><li>透過モード21を使用して調製したサンプルについて、UV-Vis吸収スペクトルを記録するマルチチャンネル光検出器または定常紫外-可視（UV-Vis）で吸光分光光度計を使用します。 </li></ol></li></ol>

We have nothing to disclose.

この原稿は、TNSフィルムの層間空間内の金ナノ粒子（AuNPs）のin situ合成のための詳細なプロトコルを提供します。これは、TNSの層間空間内AuNPsのin situ合成の最初の報告です。さらに、我々は2-AET +は、TNSの層間内AuNPsのための有効な保護試薬として機能することがわかりました。これらのメソッドはAuNPsとTNS透明フィルムをハイブリダイズしました。プロトコルセクション...

種々の貴金属ナノ粒子（MNPの）は、それらの局在表面プラズモン共鳴（LSPR）特性に特徴色または色調を呈します。従って、のMNPは、様々な光学的および/または光化学用途1-4で使用することができます。最近、金属酸化物半導体（MOS）は、酸化チタン（TiO 2）とのMNPのような光触媒の組み合わせは、十分に光触媒5-14の新しいタイプとして研究されてきました。ほとんどのMOS粒子は、比較的低い表面積を有するしかし、多くの場合、のMNPの非常に少量が、MOSの表面上に存在します。一方、層状金属酸化物半導体（LMOSs）光触媒特性を示し、大きな表面積を有し、LMOS 15-17の単位グラム当たり典型的には数百平方メートル。さらに、様々なLMOSsは、インターカレーション特性（ すなわち、種々の化学種が、その拡張可能と大きな層間空間内に収容することができる）15-20を有します。したがって、のMNP及びLMOSsの組み合わせで、それのMNP比較的大量の半導体光触媒とハイブリダイズさせることが期待されます。 非常に単純な工程を経て透明フィルム;私たちは、LMOSの層間空間内の銅ナノ粒子（CuNPs）21のその場合成の最初の （TNS 16-30チタニアナノシート）を報告しています。しかし、合成手順の詳細、および他の貴族のMNPとTNSハイブリッドの特性はまだ報告されていません。また、TNS層内CuNPsは容易に酸化し、周囲条件下21の下で脱色しました。このように、我々はAuNPsが広く、様々な光学的、光化学的に使用されているため、金ナノ粒子（AuNPs）に着目し、触媒用途、それらが酸化に対して比較的安定であることが予想される3-5,7,8,10-14 、28,31,32。ここでは、TNSおよびshow股関節の層間空間内AuNPsの合成を報告しますトン2-ammoniumethanethiol（2-AET +; 図1挿入図）は、TNSの層間内AuNPsの保護試薬として有効に働きます。

<table border="0" cellpadding="0" cellspacing="0" width="979">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr height="22">
			<td height="22" style="height:22px;width:295px;">Methyl viologen dichloride</td>
			<td style="width:173px;">Aldrich Chemical&#160; Co., Inc.</td>
			<td style="width:124px;">1910-42-5</td>
			<td style="width:388px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">Tetrabutylammonium hydroxide</td>
			<td>TCI</td>
			<td>T1685</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">cesium carbonate</td>
			<td>Kanto Chemical Co., Inc.</td>
			<td>07184-33</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">anatase titanium dixoide</td>
			<td>Ishihara Sangyo Ltd.</td>
			<td>ST-01</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">hydrochloric acid</td>
			<td>Junsei Chemical Co., Ltd.</td>
			<td>20010-0350</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">sodium hydroxide</td>
			<td>Junsei Chemical Co., Ltd.</td>
			<td>195-13775</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">Tetrachloroauric(III) acid trihydrate</td>
			<td>Kanto Chemical Co., Inc.</td>
			<td>17044-60</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">sodium tetrahydroborate</td>
			<td>Junsei Chemical Co., Ltd.</td>
			<td>39245-1210</td>
			<td></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;">2-ammoniumethanethiol hydrochloride</td>
			<td>TCI</td>
			<td>A0296</td>
			<td></td>
		</tr>
		<tr height="24">
			<td height="24" style="height:24px;">Ultrapure water (0.056 &#181;S/cm)</td>
			<td></td>
			<td></td>
			<td>Milli-Q water purification system (Direct-Q&#174; 3UV, Millipore)</td>
		</tr>
		<tr height="22">
			<td>Microscope slide (Thickness : 1.0&#8764;1.2 mm)</td>
			<td>Matsunami glass Co., Ltd.</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;"></td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>

in situ synthesis of gold nanoparticles without aggregation in the interlayer space of layered titanate transparent films

Combinations of metal oxide semiconductors and gold nanoparticles (AuNPs) have been investigated as new types of materials. The in situ synthesis of AuNPs within the interlayer space of semiconducting layered titania nanosheet (TNS) films was investigated here. Two types of intermediate films (i.e., TNS films containing methyl viologen (TNS/MV2+) and 2-ammoniumethanethiol (TNS/2-AET+)) were prepared. The two intermediate films were soaked in an aqueous tetrachloroauric(III) acid (HAuCl4) solution, whereby considerable amounts of Au(III) species were accommodated within the interlayer spaces of the TNS films. The two types of obtained films were then soaked in an aqueous sodium tetrahydroborate (NaBH4) solution, whereupon the color of the films immediately changed from colorless to purple, suggesting the formation of AuNPs within the TNS interlayer. When only TNS/MV2+ was used as the intermediate film, the color of the film gradually changed from metallic purple to dusty purple within 30 min, suggesting that aggregation of AuNPs had occurred. In contrast, this color change was suppressed by using the TNS/2-AET+ intermediate film, and the AuNPs were stabilized for over 4 months, as evidenced by the characteristic extinction (absorption and scattering) band from the AuNPs.

前駆体フィルムの二つのタイプ（ すなわち、とし、TNSの層間内に保護試薬（2-AET +）なしで）、本研究で使用しました。 2-AET +の非存在下では、1,1&#39;-ジメチル-4,4&#39;-ビピリジニウムジクロリド（メチルビオロゲン、MV 2+）MV 2+含有LMOSsがされているので、中間領域のエクスパンダとして使用されました頻繁にLMOSs 16,17,21,33-36?...

Watch this Scientific Journal Video about In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films at JoVE.com

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films

ここでは、AuNPsの凝集せず、層状チタン酸膜の層間空間内の金ナノ粒子（AuNPs）のin situ合成のためのプロトコルを提示します。いいえスペクトル変化はあっても4ヶ月後には観察されませんでした。合成された材料は、触媒、光触媒、及び費用対効果プラズモンデバイスの開発への応用が期待されています。

層状チタン酸透明フィルムの層間空間で凝集することなく金ナノ粒子のその場合成で

Combinations of metal oxide semiconductors and gold nanoparticles (AuNPs) have been investigated as new types of materials. The in situ synthesis of AuNPs ...

in-situ-synthesis-gold-nanoparticles-without-aggregation-interlayer

Research

JoVE Journal

Engineering

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films

8.0K ビュー.  Niigata University. ここでは、AuNPsの凝集せず、層状チタン酸膜の層間空間内の金ナノ粒子（AuNPs）のin situ合成のためのプロトコルを提示します。いいえスペクトル変化はあっても4ヶ月後には観察されませんでした。合成された材料は、触媒、光触媒、及び費用対効果プラズモンデバイスの開発への応用が期待されています。 

ビデオ: In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films

Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers

Nitrogen-doped carbon nanotubes consist of many cup-shaped graphitic compartments termed as nitrogen-doped carbon nanotube cups (NCNCs). These as-synthesized graphitic nanocups from chemical vapor deposition (CVD) method were stacked in a head-to-tail fashion held only through noncovalent interactions. Individual NCNCs can be isolated out of their stacking structure through a series of chemical and physical separation processes. First, as-synthesized NCNCs were oxidized in a mixture of strong acids to introduce oxygen-containing defects on the graphitic walls. The oxidized NCNCs were then processed using high-intensity probe-tip sonication which effectively separated the stacked NCNCs into individual graphitic nanocups. Owing to their abundant oxygen and nitrogen surface functionalities, the resulted individual NCNCs are highly hydrophilic and can be effectively functionalized with gold nanoparticles (GNPs), which preferentially fit in the opening of the cups as cork stoppers. These graphitic nanocups corked with GNPs may find promising applications as nanoscale containers and drug carriers.

We discussed the synthesis of individual graphitic nanocups using a series of techniques including chemical vapor deposition, acid oxidation and probe-tip sonication. By citrate reduction of HAuCl4, the graphitic nanocups were effectively corked with gold nanoparticles due to the chemically reactive edges of the cups.

コルク栓のように金ナノ粒子と窒素ドープカーボンナノチューブカップの合成と機能化

Nitrogen-doped carbon  nanotubes consist of many cup-shaped graphitic compartments termed as  nitrogen-doped carbon nanotube cups (NCNCs).  These ...

工学

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Developing low-cost, efficient processes for recovering and recycling palladium, gold and cobalt metals from urban mine remains a significant challenge in industrialized countries. Here, the development of optical mesosensors/adsorbents (MSAs) for efficient recognition and selective recovery of Pd(II), Au(III), and Co(II) from urban mine was achieved. A simple, general method for preparing MSAs based on using high-order mesoporous monolithic scaffolds was described. Hierarchical cubic Ia3d wagon-wheel-shaped MSAs were fabricated by anchoring chelating agents (colorants) into three-dimensional pores and micrometric particle surfaces of the mesoporous monolithic scaffolds. Findings show, for the first time, evidence of controlled optical recognition of Pd(II), Au(III), and Co(II) ions and a highly selective system for recovery of Pd(II) ions (up to ~95%) in ores and industrial wastes. Furthermore, the controlled assessment processes described herein involve evaluation of intrinsic properties (e.g., visual signal change, long-term stability, adsorption efficiency, extraordinary sensitivity, selectivity, and reusability); thus, expensive, sophisticated instruments are not required. Results show evidence that MSAs will attract worldwide attention as a promising technological means of recovering and recycling palladium, gold and cobalt metals.

Because of the importance and extensive use of palladium, gold and cobalt metals in high-technology equipment, their recovery and recycling constitute an important industrial challenge. The metal recovery system described herein is a simple, low-cost means for the effective detection, removal, and recovery of these metals from the urban mine.

検出とパラジウムの回収は、都市鉱山からの金やコバルト金属は、ナノスケールワゴンホイール形の細孔を有する指定小説センサ/吸着剤を使用しました

Developing low-cost, efficient processes for recovering and recycling palladium, gold and cobalt metals from urban mine remains a significant challenge in ...

Fabrication and Characterization of Superconducting Resonators

Superconducting microwave resonators are of interest for a wide range of applications, including for their use as microwave kinetic inductance detectors (MKIDs) for the detection of faint astrophysical signatures, as well as for quantum computing applications and materials characterization. In this paper, procedures are presented for the fabrication and characterization of thin-film superconducting microwave resonators. The fabrication methodology allows for the realization of superconducting transmission-line resonators with features on both sides of an atomically smooth single-crystal silicon dielectric. This work describes the procedure for the installation of resonator devices into a cryogenic microwave testbed and for cool-down below the superconducting transition temperature. The set-up of the cryogenic microwave testbed allows one to do careful measurements of the complex microwave transmission of these resonator devices, enabling the extraction of the properties of the superconducting lines and dielectric substrate (e.g., internal quality factors, loss and kinetic inductance fractions), which are important for device design and performance.

Superconducting microwave resonators are of interest for detection of light, quantum computing applications and materials characterization. This work presents a detailed procedure for fabrication and characterization of superconducting microwave resonator scattering parameters.

超伝導共振器の作製と評価

Superconducting microwave resonators are of interest for a wide range of applications, including for their use as microwave kinetic inductance detectors ...

Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films

Solution-based electrospray film deposition, which is compatible with continuous, roll-to-roll processing, is applied to chalcogenide glasses. Two chalcogenide compositions are demonstrated: Ge23Sb7S70 and As40S60, which have both been studied extensively for planar mid-infrared (mid-IR) microphotonic devices. In this approach, uniform thickness films are fabricated through the use of computer numerical controlled (CNC) motion. Chalcogenide glass (ChG) is written over the substrate by a single nozzle along a serpentine path. Films were subjected to a series of heat treatments between 100 &#176;C and 200 &#176;C under vacuum to drive off residual solvent and densify the films. Based on transmission Fourier transform infrared (FTIR) spectroscopy and surface roughness measurements, both compositions were found to be suitable for the fabrication of planar devices operating in the mid-IR region. Residual solvent removal was found to be much quicker for the As40S60 film as compared to Ge23Sb7S70. Based on the advantages of electrospray, direct printing of a gradient refractive index (GRIN) mid-IR transparent coating is envisioned, given the difference in refractive index of the two compositions in this study.

Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films

A method of uniform thickness solution-derived chalcogenide glass film deposition is demonstrated using computer numerical controlled motion of a single-nozzle electrospray.

均一な厚さのGeのエレクトロスプレーデポジション<sub&gt; 23</sub&gt; Sbの<sub&gt; 7</sub&gt; S<sub&gt; 70</sub&gt;と同様に<sub&gt; 40</sub&gt; S<sub&gt; 60</sub&gt;カルコゲナイドガラスフィルム

Solution-based electrospray film deposition, which is compatible with continuous, roll-to-roll processing, is applied to chalcogenide glasses. Two ...

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

A spark plasma sintering apparatus was used as a novel method for diffusion bonding of two single crystals of strontium titanate to form bicrystals with one twist grain boundary. This apparatus utilizes high uniaxial pressure and a pulsed direct current for rapid consolidation of material. Diffusion bonding of strontium titanate bicrystals without fracture, in a spark plasma sintering apparatus, is possible at high pressures due to the unusual temperature dependent plasticity behavior of strontium titanate. We demonstrate a method for the successful formation of bicrystals at accelerated time scales and lower temperatures in a spark plasma sintering apparatus compared to bicrystals formed by conventional diffusion bonding parameters. Bond quality was verified by scanning electron microscopy. A clean and atomically abrupt interface containing no secondary phases was observed using transmission electron microscopy techniques. Local changes in bonding across the boundary was characterized by simultaneous scanning transmission electron microscopy and spatially resolved electron energy-loss spectroscopy.

A viable technique for the formation of strontium titanate bicrystals at high pressure and fast heating rate via the spark plasma sintering apparatus is developed.

チタン酸ストロンチウム双結晶の形成に用いられるプラズマ焼結装置をスパーク

A spark plasma sintering apparatus was used as a novel method for diffusion bonding of two single crystals of strontium titanate to form bicrystals with ...

Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition

Ultra-thin film structures have been studied extensively for use as optical coatings, but performance and fabrication challenges remain.&#160; We present an advanced method for fabricating ultra-thin color films with improved characteristics. The proposed process addresses several fabrication issues, including large area processing. Specifically, the protocol describes a process for fabricating ultra-thin color films using an electron beam evaporator for oblique angle deposition of germanium (Ge) and gold (Au) on silicon (Si) substrates.&#160; Film porosity produced by the oblique angle deposition induces color changes in the ultra-thin film. The degree of color change depends on factors such as deposition angle and film thickness. Fabricated samples of the ultra-thin color films showed improved color tunability and color purity. In addition, the measured reflectance of the fabricated samples was converted into chromatic values and analyzed in terms of color. Our ultra-thin film fabricating method is expected to be used for various ultra-thin film applications such as flexible color electrodes, thin film solar cells, and optical filters. Also, the process developed here for analyzing the color of the fabricated samples is broadly useful for studying various color structures.

We present a detailed method for fabricating ultra-thin color films with improved characteristics for optical coatings. The oblique angle deposition technique using an electron beam evaporator allows improved color tunability and purity. Fabricated films of Ge and Au on Si substrates were analyzed by reflectance measurements and color information conversion.

斜め蒸着を使用してメディアを高吸収極薄カラー フィルムの作製

Ultra-thin film structures have been studied extensively for use as optical coatings, but performance and fabrication challenges remain.&#160; We present ...

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

We demonstrate the use of two nuclear-based analytical methods that can follow the modifications of microstructural arrangement of iron-based metallic glasses (MGs). Despite their amorphous nature, the identification of hyperfine interactions unveils faint structural modifications. For this purpose, we have employed two techniques that utilize nuclear resonance among nuclear levels of a stable 57Fe isotope, namely M&#246;ssbauer spectrometry and nuclear forward scattering (NFS) of synchrotron radiation. The effects of heat treatment upon (Fe2.85Co1)77Mo8Cu1B14 MG are discussed using the results of ex situ and in situ experiments, respectively. As both methods are sensitive to hyperfine interactions, information on structural arrangement as well as on magnetic microstructure is readily available. M&#246;ssbauer spectrometry performed ex situ describes how the structural arrangement and magnetic microstructure appears at room temperature after the annealing under certain conditions (temperature, time), and thus this technique inspects steady states. On the other hand, NFS data are recorded in situ during dynamically changing temperature and NFS examines transient states. The use of both techniques provides complementary information. In general, they can be applied to any suitable system in which it is important to know its steady state but also transient states.

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Here, we present a protocol to describe ex situ and in situ investigations of structural transformations in metallic glasses. We employed nuclear-based analytical methods which inspect hyperfine interactions. We demonstrate the applicability of M&#246;ssbauer spectrometry and nuclear forward scattering of synchrotron radiation during temperature-driven experiments.

Ex その場その場で調査構造変換の方法: 金属ガラスの結晶化の事例

We demonstrate the use of two nuclear-based analytical methods that can follow the modifications of microstructural arrangement of iron-based metallic ...

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

In this study, plasmonic gold nanoparticles were simultaneously exposed to pulsed near-infrared laser light and high intensity focused ultrasound (HIFU) for the controllable nucleation of cavitation in tissue-mimicking gel phantoms. This in vitro protocol was developed to demonstrate the feasibility of this approach, for both enhancement of imaging and therapeutic applications for cancer. The same apparatus can be used for both imaging and therapeutic applications by varying the exposure duration of the HIFU system. For short duration exposures (10 &#181;s), broadband acoustic emissions were generated through the controlled nucleation of inertial cavitation around the gold nanoparticles. These emissions provide direct localization of nanoparticles. For future applications, these particles may be functionalized with molecular-targeting antibodies (e.g. anti-HER2 for breast cancer) and can provide precise localization of cancerous regions, complementing routine diagnostic ultrasound imaging. For continuous wave (CW) exposures, the cavitation activity was used to increase the localized heating from the HIFU exposures resulting in larger thermal damage in the gel phantoms. The acoustic emissions generated from inertial cavitation activity during these CW exposures was monitored using a passive cavitation detection (PCD) system to provide feedback of cavitation activity. Increased localized heating was only achieved through the unique combination of nanoparticles, laser light and HIFU. Further validation of this technique in pre-clinical models of cancer is necessary.

This protocol demonstrates the controllable nucleation of cavitation in gel phantoms, through simultaneous exposure to both near-infrared pulsed laser light and high intensity focused ultrasound (HIFU). The cavitation activity can then be used for enhancing imaging and/or therapeutic uses of HIFU.

高強度を強化するため金ナノ粒子プラズモニックからキャビテーションの制御可能な核集中超音波アプリケーション

In this study, plasmonic gold nanoparticles were simultaneously exposed to pulsed near-infrared laser light and high intensity focused ultrasound (HIFU) ...

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7&#8722;&#948;/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Here, we demonstrate a method of coating ferromagnetic La0.67Sr0.33MnO3 (LSMO) nanoparticles on (001) SrTiO3 (STO) single-crystal substrates by radio frequency (RF) magnetron sputtering. LSMO nanoparticles were deposited with diameters from 10 to 20 nm and heights between 20 and 50 nm. At the same time, (Gd) Ba2Cu3O7&#8722;&#948; ((Gd) BCO) films were fabricated on both undecorated and LSMO nanoparticle decorated STO substrates using RF magnetron sputtering. This report also describes the properties of GdBa2Cu3O7&#8722;&#948;/ La0.67Sr0.33MnO3 quasi-bilayer films structures (e.g., crystalline phase, morphology, chemical composition); magnetization, magneto-transport, and superconducting transport properties were also evaluated.

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7ÃƒÆ’Ã‚Â¢Ãƒâ€¹Ã¢â‚¬Â 'ÃƒÆ’Ã…Â½ Â´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates

Here, we present a protocol to grow LSMO nanoparticles and (Gd) BCO films on (001) SrTiO3 (STO) single-crystal substrates by radio frequency (RF)-sputtering.

高周波マグネトロンスパッタ リングによる GdBa2Cu3O7−δ/チタン酸ストロンチウム3 (STO) 単結晶基板上 La0.67Sr0.33MnO3準二層フィルム

Here, we demonstrate a method of coating ferromagnetic La0.67Sr0.33MnO3 (LSMO) nanoparticles on (001) SrTiO3 (STO) single-crystal substrates by radio ...

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter

Here, we demonstrate a detail protocol for the preparation of nanomaterials-embedded composite membranes and its application to the efficient and ion-selective removal of radioactive iodines. By using citrate-stabilized gold nanoparticles (mean diameter: 13 nm) and cellulose acetate membranes, gold nanoparticle-embedded cellulose acetate membranes (Au-CAM) have easily been fabricated. The nano-adsorbents on Au-CAM were highly stable in the presence of high concentration of inorganic salts and organic molecules. The iodide ions in aqueous solutions could rapidly be captured by this engineered membrane. Through a filtration process using an Au-CAM containing filter unit, excellent removal efficiency (&gt;99%) as well as ion-selective desalination result was achieved in a short time. Moreover, Au-CAM provided good reusability without significant decrease of its performances. These results suggested that the present technology using the engineered hybrid membrane will be a promising process for the large-scale decontamination of radioactive iodine from liquid wastes.

An efficient method for the rapid and ion-selective desalination of radioactive iodine in several aqueous solutions is described by using gold nanoparticles-immobilized cellulose acetate membrane filters.

層状チタン酸透明フィルムの層間空間で凝集することなく金ナノ粒子のその場合成で

要約

さらに動画を探す

この動画の章

コルク栓のように金ナノ粒子と窒素ドープカーボンナノチューブカップの合成と機能化

検出とパラジウムの回収は、都市鉱山からの金やコバルト金属は、ナノスケールワゴンホイール形の細孔を有する指定小説センサ/吸着剤を使用しました

超伝導共振器の作製と評価

均一な厚さのGeのエレクトロスプレーデポジション

チタン酸ストロンチウム双結晶の形成に用いられるプラズマ焼結装置をスパーク

斜め蒸着を使用してメディアを高吸収極薄カラーフィルムの作製

Ex その場その場で調査構造変換の方法: 金属ガラスの結晶化の事例

高強度を強化するため金ナノ粒子プラズモニックからキャビテーションの制御可能な核集中超音波アプリケーション

高周波マグネトロンスパッタリングによる GdBa₂Cu₃O₇₋_δ/チタン酸ストロンチウム₃ (STO) 単結晶基板上 La_0.67Sr_0.33MnO₃準二層フィルム

金ナノ粒子に埋め込まれた膜フィルターを用いた放射性ヨウ素アニオン選択性淡水化の効率的な方法

層状チタン酸透明フィルムの層間空間で凝集することなく金ナノ粒子のその場合成で

要約

さらに動画を探す

この動画の章

コルク栓のように金ナノ粒子と窒素ドープカーボンナノチューブカップの合成と機能化

検出とパラジウムの回収は、都市鉱山からの金やコバルト金属は、ナノスケールワゴンホイール形の細孔を有する指定小説センサ/吸着剤を使用しました

超伝導共振器の作製と評価

均一な厚さのGeのエレクトロスプレーデポジション

チタン酸ストロンチウム双結晶の形成に用いられるプラズマ焼結装置をスパーク

斜め蒸着を使用してメディアを高吸収極薄カラー フィルムの作製

Ex その場その場で調査構造変換の方法: 金属ガラスの結晶化の事例

高強度を強化するため金ナノ粒子プラズモニックからキャビテーションの制御可能な核集中超音波アプリケーション

高周波マグネトロンスパッタ リングによる GdBa2Cu3O7−δ/チタン酸ストロンチウム3 (STO) 単結晶基板上 La0.67Sr0.33MnO3準二層フィルム

金ナノ粒子に埋め込まれた膜フィルターを用いた放射性ヨウ素アニオン選択性淡水化の効率的な方法

斜め蒸着を使用してメディアを高吸収極薄カラーフィルムの作製

高周波マグネトロンスパッタリングによる GdBa₂Cu₃O₇₋_δ/チタン酸ストロンチウム₃ (STO) 単結晶基板上 La_0.67Sr_0.33MnO₃準二層フィルム