公开(公告)号：US07175778B1

公开(公告)日：2007-02-13

申请号：US10436289

申请日：2003-05-12

申请人： Rameshwar Nath Bhargava ,  Vishal Chhabra

发明人： Rameshwar Nath Bhargava ,  Vishal Chhabra

IPC分类号： H01F1/00 ,  C09K11/02

CPC分类号： H01F1/0036 ,  B82Y25/00 ,  C09K11/7769 ,  H01F1/0063 ,  H01F1/0072 ,  Y10S977/774 ,  Y10S977/779 ,  Y10S977/783 ,  Y10S977/811 ,  Y10S977/834 ,  Y10S977/838 ,  Y10T428/2991

摘要： The present application is directed to the preparation and use of a class of nanoparticles called Quantum Confined Atoms or QCA's. A QCA is a particle of material comprising a plurality of host atoms in a nanoparticle of a size of less than 10 nm with a single atom of a dopant (or activator) confined within. The QCA's have unique luminescent and optical properties and thus can act as a very efficient nanophosphor which generate polarized light and can operate as a laser and a nanomagnet. An anti-agglomeration coating surrounding the nanoparticles can prevent clumping and loss of the enhanced properties.

摘要翻译： 本申请涉及一类称为量子限制原子或QCA的纳米颗粒的制备和使用。 QCA是包含尺寸小于10nm的纳米颗粒中的多个宿主原子的材料颗粒，其中限定在其内的掺杂剂（或活化剂）的单个原子。 QCA具有独特的发光和光学特性，因此可以作为产生偏振光并可作为激光和纳米磁体工作的非常有效的纳米荧光体。 围绕纳米颗粒的抗附聚涂层可以防止结块和损失增强的性能。

公开(公告)号：US07993541B1

公开(公告)日：2011-08-09

申请号：US11705383

申请日：2007-02-12

申请人： Rameshwar Nath Bhargava ,  Haranath Divi ,  Adosh Mehta

发明人： Rameshwar Nath Bhargava ,  Haranath Divi ,  Adosh Mehta

IPC分类号： H01F1/00

CPC分类号： B82Y25/00 ,  H01F1/0054 ,  H01F1/0063 ,  H01F1/0072 ,  Y10S977/774 ,  Y10S977/811 ,  Y10S977/824 ,  Y10S977/83 ,  Y10S977/838 ,  Y10T428/2991 ,  Y10T428/2998

摘要： The present application is directed to the preparation and use of a class of nanoparticles that contain a single Quantum Confined dopant. A QCA nanocrystal comprises of a plurality of host atoms in a nanocrystal of a size of less than 10 nm with a single atom of a dopant (or activator). This single QCA dopant, when confined, becomes polarized and creates a large magnetic-moment in a nanosize host that contains atoms of unpaired spins. The quantum confined atom (QCA) which is now pinned, triggers the alignment of the host atoms resulting in nanosize magnetic domain. Engineering of nanomagnets based on QCA nanoparticles can be used in different applications such as: sensors, drug delivery, bio-tagging, cell/DNA tagging, magnetic memories and others.

摘要翻译： 本申请涉及制备和使用含有单一量子限制掺杂剂的一类纳米粒子。 QCA纳米晶体由尺寸小于10nm的纳米晶体中的多个主体原子与掺杂剂（或活化剂）的单个原子组成。 当限制时，这种单一的QCA掺杂剂变成极化的，并且在纳米尺度的主体中产生了包含不成对自旋原子的大的磁矩。 现在固定的量子限制原子（QCA）触发了导致纳米尺度磁畴的主体原子的取向。 基于QCA纳米颗粒的纳米磁体的工程可用于不同的应用，如：传感器，药物递送，生物标记，细胞/ DNA标签，磁记忆等。